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15 Toll Brothers 364 pages
City of Cupertino 10300 Torre Avenue Cupertino, CA 9S014 (408) 777-3308 Fax: (408) 777-3333 CI F CUPElQ1NO Community Development Department Summary Agenda Item No. ~ Agenda Date: February 7, 2006 Application: Consider Application Nos: V-200S-15, EXC-2005-18, TM-2005-04, Z-2005- 04 (EA-2005-17), Kelly Snider (Toll Brothers), Stevens Creek Blvd. at Finch Avenue, APN No. 316_20_074,316-20-078,316-20-079,316-20-085: a) Mitigated Negative Declaration b) Vse Permit for a mixed-use development consisting of approximately 113,000 square feet of commercial shopping center, up to 399 residential units and a 3.5-acre public park c) Exceptions from the Heart of the City Plan to allow for an average 35-foot front setback along Stevens Creek Boulevard for the commercial shopping center d) Tentative Map to subdivide 4 parcels (approximately 26-acres) into 6 parcels for a residential and commercial development consisting of approximately 113,000 square feet of retail shopping center, up to 399 residential units and a 3.5-acre public park e) Rezoning to allow for a commercial and residential development consisting of approximately 113,000 square feet of commercial shopping center, up to 399 residential units and a 3.5-acre public park First reading of Ordinance No. Cupertino : "An Ordinance of the City Council of the City of " Applicant (s): Toll Brothers Property Location: APN#s: 316-20-074, 078, 079, 085 - North of Stevens Creek Boulevard and South of 1-280 between Tantau Avenue and Finch Avenue. RECOMMENDATION The Planning Commission recommends approval of the following: 1. Mitigated Negative Declaration, EA-2005-07 2. Vse Permit application, V-2005-09, subject to Planning Commission Resolution No. 6368 3. Exception application, EXC-2005-18, subject to the Planning Commission Resolution No. 6369 4. Tentative Map application, TM-2005-04, subject to the Planning Commission Resolution No. 6370 1$-1 Applications: V-2005-15, TM-2005-04 Z-2005-04, EXC-2005-18, EA-2005-07 Calabazas Place February 7, 2006 Page 2 5. Rezoning application, Z-20005-04, subject to the Planning Commission Resolution No. 6371 Project Data: General Plan Designation: Office Area: Residential Units: Residential Density: Retail Area: Building Height: Current Zoning: Proposed Zoning: Specific Plan: Project Consistency with: General Plan: Zoning: Specific Plan: Environmental Assessment: Commercial/ Office/ Residential 150,000 square feet (existing) 369 - 402 units 16 to 36 du/ ac Up to 115,000 square feet 40 to 50 feet P(CG,O,ML,Hotel) & P(ML) P(Comm, Res) & P(PR) Heart of the City Yes, with the following changes: » Reduce density to 35 du/ ac. » Conform to the 1.5 to 1 slope line along Stevens Creek and Tantau. » Reduce number of units or identify transfer source. Yes, with a rezoning allowing residential uses Yes, with exception to allow an average of 35 feet front setback for commercial. Mitigated Negative Declaration. BACKGROUND On January 18, 2005, the City Council heard a request by Toll Brothers, for authorization to apply for a General Plan Amendment to allow up to 460 additional residential units, 100,000 square feet of commercial area and 1.4 acres of public park area. The City Council authorized the applicant to apply for a General Plan Amendment for up to 300 residential units with the condition that the project includes at least 100,000 sq. ft. of retail space and at least a 3.5-acre park (plus funding for a park in Rancho Rinconada). Subsequent to this authorization, the City Council decided to change the ordinance to no longer require pre-approval prior to filling a General Plan Amendment. In addition, the Vallco Park South area now has new residential allocations based on the recent General Plan update. Consequently, the applicant no longer needs a General Plan Amendment, and the application is outside the parameters of the prior authorization. On January 26, 3006, the Planning Commission recommended approval of the próject. The table below describes the previous Council direction to the applicant, the January 26, 2006, Commission recommendation and how the current proposal compares: 2 I ~-2. Applications: U-2005-15, TM-2005-04 Z-2005-04, EXC-2005-18, EA-2005-07 Calabazas Place February 7, 2006 Page 3 1/18/2005 1/18/2006 Current 1/26/2006 Planning Proposal Council PlOposdl Commission Ducction Recommendation Units 460 300 369 - 402 399 Retail (sq. ft.) 90,000 100,000 112,200 112,200 Public Park 3.5 park 3.5 + give the city (acres) funding to option to purchase purchase a up to .21 (or the parcel in amount of acreage to Rancho allow for a full 3- 1.4 Rinconada for a 3.5 acre rectangular pocket park south of the park/ trail head West Terrace project) next to the + funding to Saratoga Creek purchase a park in linear Dark Rancho Rinconada Density (units per 35 maximum on any acre) 27 36 given parcel Please refer to the December 20, 2005 Planning Commission staff report for a detailed description of past proposals and Council directions prior to January IS, 2006. DISCUSSION The proposed mixed-use development will consist of the following: · Two residential options encompassing 369 - 402 homes as follows: o Option A · 322 residential condominium units, and · SO senior apartments, equaling 20% Below Market Rate (BMR) 402 total units o Option B · 314 condominium units, and 55 BMR units equaling 15% BMR 369 total units · Retail shopping center encompassing approximately 115,000 square foot · 3.5 acre public park · Demolition of a 150,000 square foot industrial office building considered functionally obsolete by the applicant · The environmental analysis and technical reports considered both options; therefore the Council has the ability to choose either option. 3 1,-3 Applications: U-2005-15, TM-2005-04 Z-2005-04, EXC-2005-18, EA-2005-07 Calabazas Place February 7, 2006 Page 4 The Planning Commission is recommending: .:. Senior Option A (not to exceed 399 units) with 20% BMR senior units. This project is categorized into policy related and technical issues. This report provides a brief summary of major issues and the Planning Commission recommendations. A detailed discussion is provided in the attached staff reports to the Planning Commission dated December 20, 2006 and January 26, 2006. The project should be considered in two steps: 1) Policy Review: Determine if the application conforms to the General Plan, Heart of the City Plan and the direction from the City Council at the study session of January 18, 2005. The analysis should focus on: a) Number of housing units (including density) b) Park area c) Retail square footage d) Building height and setbacks 2) Technical Issues: If the project conforms to the policy criteria contained in the above documents and the direction of the City Council, then review the technical issues including: a) Parking b) Architectural Design c) Trees PLANNING COMMISSION Policy Issues General Plan In order to conform to the above General Plan criteria, the Planning Commission recommends the following measures be implemented: .:. Provide more building offsets on the East Terrace building between the third and fourth floor along the Stevens Creek Blvd. and Tantau Avenue elevations in order to conform to the 1.5 to 1 slope line, .:. Reduce the density of the West Terrace building from 36 units/ acre to 35 units / acre maximum as per the General Plan. Substantial Public Benefits The project proposes a total number of units in excess of the 300 previously directed by the City Council and exceeds the total of 400 units allocated for the South Valko area, when combined with the proposed 137-unit Valko condominium application. The 4 I S·'-{ Applications: U-2005-15, TM-2005-04 Z-2005-04, EXC-2005-18, EA-2005-07 Calabazas Place February 7, 2006 Page 5 recently adopted General Plan allows transferring units from one area to another area, but provides no specific criteria for when transfers should be allowed. Staff suggests that transfers should be allowed when there is an identified substantial public benefit associated with the application. The Planning Commission recommends the senior option A with a maximum 399 units with the following substantial public benefits to justify allocating an additional 99 units from the other residential category: .:. Park area and improvements (minimum 3.5-acres dedicated & fully improved) in excess of their required 2-acre park dedication requirement. Plus funding to purchase a pocket park/trail head in the Rancho Rinconada area (next to the Saratoga Creek linear park) will constitute one of the substantial public benefits from the project and also satisfy the Council directed 3.5 acre park with funding to purchase a park in Rancho Rinconada area. .:. Allowing the City to purchase land (.21-acre) to expand the proposed 2.79-acre front square shaped portion of the park to a better functional 3-acres of park area, along Stevens Creek Blvd. The developer shall give the City the option to purchase the .21-acre at market value. .:. The .71-acre pan handle portion of the park east of West Terrace could be modified to accommodate a few of the displaced units. .:. Contribution to the improvements of a trail connection along the east side of Calabazas Creek from Valko Parkway to 1-280, .:. Construction of a pedestrian path along the west side of Tantau Avenue, through the Tantau overpass to Pruneridge Ave. Heart of the City (Setback Exception) Section 1.01.030 B 1 of the Heart of the City Plan requires frontage setbacks (along Stevens Creek) to be no less than 35 feet from the curb. The commercial project requires an exception to have an average 35"foot (ranging from 26 feet minimum to 57 feet maximum) frontage setback along Stevens Creek Blvd. The Planning Commission supports the exception with the following condition: .:. Minimum building setback at any given point along Stevens Creek Boulevard shall not be less than 30 feet. Technical Issues Parking The parking analysis consists of two categories: residential and commercial. Both of the proposed options (senior option A and condo option B) provide sufficient parking for the residential uses. The project proposes to restripe Finch Avenue and Valko Parkway to provide 115 on-street stalls. All of these stalls will be shared by the project and the park users. 5 /5-5 Applications: U-2005-15, TM-2005-04 Z-2005-04, EXC-2005-18, EA-2005-07 Calabazas Place February 7, 2006 Page 6 The parking demand of the proposed commercial center was considered in conjunction with the proposed parking demand for the park. Based on the strict application of the ordinance commercial parking ratios, there will be parking deficiencies. The applicant has submitted a shared parking analysis prepared by Hexagon Transportation Consultants based on the Urban Land Institute (UU) Shared Parking Data. Hexagon assumed that some customers of the restaurants would shop in the stores and vice versa. This assumption could also be applied to the park, in that some park users may potentially shop at the shopping center. Also, Hexagon assumed that a small percentage of the customers and employees might walk or talk alternative means of transportation (bus or bike) to get to the center. Based on these assumptions, Hexagon applied a 10% reduction to the parking demand to reflect the above-mentioned shopping center interactions. The Hexagon's analysis concluded that adequate parking has been provided to meet the peak demand of the shopping center and the park. The City's parking consultant Fehr and Peers reviewed Hexagon's report and concluded that the analysis is reasonable and that even without the 10% reduction, the parking will be sufficient for the shopping center and the park. ULI Shared Parking Demand Pro·ection* 446 (weekdays - 7pm) 388 weekends - 2 m *With 10% reduction Stalls Park Demand 4S Ul1S,I1¡}redPaíl<iµ~ Demand pro·ection:* 4S0 (weekdays - 7pm) 386 weekends - 2 m *Without 10% reduction St<ù!s Park Demand 4S TotaV· .. Re uired 491 433 14 (weekdays - 7 pm) 72 weekends - 2 m T ptaI .. Rê uired 49S 431 The Commission recommends the following changes or condition relating to parking: .:. Delete the Transportation Demand Management (TDM) and parking monitoring program condition. .:. The project shall provide an additional 41 diagonal stalls along the north side of Valko Parkway (avoiding removal of the existing Ash trees to the maximum extent possible). The parking plan shall be revised and approved as part of the Architectural and Site approval. Architectural Design Only conceptual elevations were submitted for review as part of this approval since the applicant will apply for Architectural and Site approval (ASA) after the zoning and use permit are approved by the City. Staff and the City Architect have identified the several issues relating to architecture that will be addressed at the ASA approval stage as a condition. Please refer to the December 20, 2005 Commission staff report for additional discussion. In addition to the recommendations from the City Architectural 6 /5-(P Applications: U-2005-15, TM-2005-04 Z-2005-04, EXC-2005-18, EA-2005-07 Calabazas Place February 7, 2006 Page 7 Consultant, the Planning Commission recommends the following measures relating to architectural design: .:. Provide more building offsets on the East Terrace building between the third and fourth floor along Stevens Creek Boulevard and Tantau Avenue to conform to the required height to setback ratio and so that it takes on the appearance of a three story building with the fourth floor setback (similar that to the Metropolitan building along Stevens Creek Blvd.). .:. Redesign the senior apartment building for better noise attenuation from the highway. Landscaping and Tree Removal The Planning Commission recommends that: .:. The applicant must make the necessary revisions to the proposed site plan (Villas) to preserve Tree #174 (55-inch Sycamore Tree, as indentified in the City Arborist's tree report). .:. The dead Valley Oak Tree located at the northeasterly corner of Stevens Creek Blvd. and Finch Ave. must be replaced by a field grown oak to be planted at the northwesterly corner of the Stevens Creek Blvd. and Finch Ave. in front of the proposed park. Affordable Housing The Senior Option A, will include 20% Below Market Rate (BMR) in form of SO low- income senior units all located in one building at the northeast corner of the project site. Fifteen% (55 units) of the Condo Option B (369 units) will be BMR units dispersed throughout the project. The Housing Commission reviewed the project on August 11 & October 13, 2005. The Housing Commission recommends the project comply with the Cupertino Below Market Rate (BMR) Manual, 15% of the project shall be BMR units that are comparable in size to the market rate units and dispersed throughout the development. The Housing Commission suggested that the applicant could provide a mix of housing types, including one-bedroom units that can accommodate seniors provided the one-bedroom units do not exceed 50% of the BMR units. The total combined square footage of the senior units falls short of 15% of the total square footage of the project. In addition, the senior apartment units are concentrated in one building located at the northeast corner of the project site. The Planning Commission considered the Housing Commission's recommendation but felt that having affordable senior apartments in the City is important and it is very difficult to mix senior apartment units with market rate units. Usually, senior apartments are stand-alone buildings due to the special facility and service needs required by the seniors. In addition, the project is proposing 20% when 15% is required 7 /S-7 Applications: U-2005-15, TM-2005-04 Z-2005-04, EXC-2005-18, EA-2005-07 Calabazas Place February 7, 2006 Page 8 The Planning Commission recommends: .:. Senior Option A, not to exceed 399 total units, at 20% BMR senior apartments. .:. The Commission suggested that the Council ask if the applicant is willing to consider the possibility of providing an additional 5% regular BMR units dispersed throughout the project to be consistent with the intent of the Housing Mitigation Manual. PUBLIC The Planning Commission heard from several speakers during the public hearing who provided the following comments: .:. The City should consider approving higher density developments in this area. .:. The project works well with the surrounding projects. .:. Smaller condominiums cater to the younger population in the City. .:. There is a need for full regulation cricket field in the City of Cupertino (California Cricket Academy). .:. The Planning Commission should consider a cricket field in the park or support the larger park configuration so that soccer could be moved to this park, potentially freeing up other City fields for cricket. .:. Silicon Valley Leadership Group supports the proposed development. .:. There is a huge demand for housing in this area. .:. More housing would help revitalize existing struggling shopping center. .:. The location is appropriate for the proposed project. .:. Should put more housing on this site. .:. The City should address the needs of the seniors in the Cupertino as they age. .:. The project should consist of some regular BMR units while some BMR units are made available for the seniors for purchase. .:. The senior project should not be located toward the back of the project. It should be located adjacent to public transportation and the project amenities. .:. The square footage provided for the senior apartment option should be comparable to that of the total square footage of the regular 15% BMR option. .:. The Senior Commission has scheduled a special meeting on February 2, 2006 to discuss the project. The Senior Commission's recommendation will be reported to the Council at its February 7, 2006 meeting. .:. The City should promote smart growth and not over build. .:. There is a lack of a park in Rancho Rinconada. .:. Buildings should not be built on top of the creek bed or on top of the culvert. .:. The project should protect the existing ash trees along the perimeter. .:. The existing dead oak tree at the corner of Finch and Stevens Creek should be replaced in kind. .:. The large pine tree (#113) along Stevens Creek Blvd. and the sycamore tree (#174) along Valko Parkway should be preserved. .:. We need to focus on providing more affordable housing for younger people in Cupertino. 8 1,-8 Applications: U-2005-15, TM-2005-04 Z-2005-04, EXC-2005-18, EA-2005-07 Cala bazas Place February 7, 2006 Page 9 .:. The proposed park is located at a good location. .:. Senior option A should be selected because there will be less impact on traffic and schools from the senior component of the project. .:. The Sierra Club recommends approval of the project. .:. Affordable housing that are dispersed through out the market rate units are not the most efficient and effective way of providing affordable housing. .:. Reducing the widths of Valko Parkway and Finch Avenue will alter the traffic pattern of the area and create congestion. Enclosures Planning Commission Resolution No. 6369 for EXC-2005-18 dated January 26, 2006 Planning Commission Resolution No. 6371 for Z-2005-Q4 dated January 26, 2006 Planning Commission Resolution No. 6368 for U-2005-15 dated January 26, 3006 Planning Commission Resolution No. 6370 for TM-2005-04 dated January 26, 2006 Planning Commission Minute Order No. 6372 City Council Ordinance Initial Study (previously provided to the Council on December 22, 2005) Mitigated Negative Declaration Mitigated Monitoring Program dated January 2006 Staff report to Planning Commission dated January 10, 2006 Staff report to Planning Commission dated January 26, 3006 Mixed-Use Parking Analysis, by Hexagon Transportation dated January 6, 2006. Correspondences from Neighbors Email Correspondence from the Sierra Club dated January 6, 2006. Plan set Prepared by: Gary Chao, Associate Planner APPROVED BY: Sf Pia ecki, Director of Community Development -+ :::~~C:ff 9 15 -Cf EXC-2005-18 CITY OF CUPERTINO 10300 Torre Avenue Cupertino, California 95014 RESOLUTION No. 6369 OF THE PLANNING COMMISSION OF THE CITY OF CUPERTINO APPROVING AN EXCEPTION FROM THE HEART OF THE CITY PLAN TO ALLOW FOR AN AVERAGE 35-FOOR FRONT SETBACK ALONG STEVENS CREEK BOULEVARD FOR THE COMMERCIAL SHOPPING CENTER AT STEVENS CREEK BOULEVARD AND FINCH AVENUE SECTION 1: PROTECT DESCRIPTION Application No.: Applicant: Location: EXC-2005-18 Kelly Snider (Toll Bros.) Stevens Creek @ Finch Ave SECTION II: FINDINGS FOR EXCEPTION WHEREAS, in order to provide height flexibility in situations when collocation of personal wireless service antennas is desirable from a design and visual standpoint, an applicant for development may file an exception request to seek approval to deviate from the standards; and WHEREAS, the Planning Commission finds the following with regards to the Height Exception for this application: 1. That the literal enforcement of the provisions of this title will result in restrictions inconsistent with the spirit and intent of this title. 2. That the proposed project will not be injurious to property or improvements in the area nor be materially detrimental to the public health, safety, or welfare. 3. The proposed development will not create a hazardous condition for pedestrian or vehicular traffic. NOW, THEREFORE, BE IT RESOLVED: That after careful consideration of maps, facts, exhibits, testimony and other evidence submitted in this matter, application no. EXC-2005-18 is hereby approved; and That the subconclusions upon which the findings and conditions specified in this Resolution are based and contained in the Public Hearing record concerning Application EXC-2005-18, as set forth in the Minutes of the Planning Commission Meeting of January 26, 2006, and are incorporated by reference herein. 15-/0 Resolution No.6369 Page 2 EXC-2005-18 January 26,2006 SECTION III: CONDITIONS ADMINISTERED BY THE COMMUNITY DEVELOPMENT DEPT. 1. APPROVED EXHIBITS The recommendation of approval is based on Exhibits titled: "Calabazas Place: Cupertino, California, Mixed-Use Community" dated December 14, 2005 and December 15, 2005, consisting of 54 sheets labeled 0.0, 0.1, MPl - MP3, MP 3.0, MP4, MP5, AO.1 -AO.2, Colored Streetscape, Al - A9, ARO - 10, 11 - L6, CO.l, C01.1 - 1.3, C2.1 - 2.3, C3.1 - 3.6, C4.1 - C4.3, T-l, except as may be amended by the Conditions contained in this Resolution. 2. MINIMUM SETBACK The commercial buildings along Stevens Creek Blvd. shall maintain an average setback of 35 feet (no less than 30 feet at any given point measured from the curb). 3. NOTICE OF FEES, DEDICATIONS, RESERVATIONS OR OTHER EXACTIONS The Conditions of Project Approval set forth herein may include certain fees, dedication requirements, reservation requirements, and other exactions. Pursuant to Government Code Section 66020(d) (1), these Conditions constitute written notice of a statement of the amount of such fees, and a description of the dedications, reservations, and other exactions. You are hereby further notified that the 90-day approval period in which you may protest these fees, dedications, reservations, and other exactions, pursuant to Government Code Section 66020(a), has begun. If you fail to file a protest within this 90-day period complying with all of the requirements of Section 66020, you will be legally barred from later challenging such exactions. PASSED AND ADOPTED this 26th day of January 2006, at a Regular Meeting of the Planning Commission of the City of Cupertino by the following roll call vote: AYES: COMMISSIONERS: Chairperson Miller, Vice-Chair Giefer, Saadati Wong NOES: ABSTAIN: ABSENT: COMMISSIONERS: COMMISSIONERS: COMMISSIONERS: ATTEST: APPROVED: / slSteve Piasecki Steve Piasecki Director of Community Development g:/planning/pdreportlresjEX C-2005-18 res.doc IslMarty Miller Marty Miller, Chair Planning Commission 1,-11 Z-2005-04 CITY OF CUPERTINO 10300 Torre Avenue Cupertino, California 95014 RESOLUTION NO. 6371 OF THE PLANNING COMMISSION OF THE CITY OF CUPERTINO RECOMMENDING THE RE-ZONING TO ALLOW FOR A COMMERCIAL AND RESIDENTIAL DEVELOPMENT CONSISTING OF APPROXIMA TEL Y 113,000 SQUARE FEET OF COMMERCIAL SHOPPING CENTER, UP TO 399 RESIDENTIAL UNITS AND A 3.5 ACRE PUBLIC P ARK AT STEVENS CREEK BOULEV ARD AT FINCH AVENUE SECTION I: PROTECT DESCRIPTION Application No.: Applicant: Location: Z-2005-04 (EA-2005-17) Kelly Snider (Toll Bros.) Stevens Creek blvd @ Finch Ave SECTION II: FINDINGS FOR REZONING WHEREAS, the Planning Commission of the City of Cupertino received an application for the rezoning of property, as described on this Resolution; and WHEREAS, the necessary public notices have been given in accordance with the Procedural Ordinance of the City of Cupertino, and the Planning Commission has held one or more public hearings on this matter; and WHEREAS, the Planning Commission finds that the subject rezonIng meets the following requirements: 1) That the rezoning is in conformance with the General Plan of the City of Cupertino. 2) That the property involved is adequate in size and shape to conform to the new zoning designation. 3) That the new zoning encourages the most appropriate use of land. 4) That the proposed rezoning is otherwise not detrimental to the health, safety, peace, morals and general welfare of persons residing or working in the neighborhood of subject parcels. 5) That the rezoning promotes the orderly development of the city. / S -/2. Resolution No. 6371 Page 2 Z-200S-04 January 26, 2006 NOW, THEREFORE, BE IT RESOLVED: That after careful consideration of maps, facts, exhibits, testimony and other evidence submitted in this matter, application no. Z-2005-04 is hereby recommended for approval; and That the subconclusions upon which the findings and conditions specified in this Resolution are based and contained in the Public Hearing record concerning Application Z-2005-04, as set forth in the Minutes of the Planning Commission Meeting of January 26, 2006 and are incorporated by reference herein. SECTION III: CONDITIONS ADMINISTERED BY THE COMMUNITY DEVELOPMENT DEPT. 1 APPROVED EXHIBITS Zoning approval is for area shown in the approved Zoning Plat Maps. PASSED AND ADOPTED this 26th day of January 2006, at a Regular Meeting of the Planning Commission of the City of Cupertino, State of California, by the following roll call vote: AYES: COMMISSIONERS: Chairperson Miller, Vice-Chair Giefer, Saadati Wong COMMISSIONERS: COMMISSIONERS: COMMISSIONERS: NOES: ABSTAIN: ABSENT: A TrEST: APPROVED: I s/Steve Piasecki Steve Piasecki Director of Community Development IslMarty Miller Marty Miller, Chairperson Cupertino Planning Commission I 'j- f '3 U-2005-15 CITY OF CUPERTINO 10300 Torre Avenue Cupertino, California 95014 RESOLUTION NO. 6368 OF THE PLANNING COMMISSION OF THE CITY OF CUPERTINO APPROVING A USE PERMIT FOR MIXED-USE DEVELOPMENT CONSISTING OF APPROXIMATELY 113,000 SQUARE FEET OF COMMERCIAL SHOPPING CENTER, UP TO 399 RESIDENTIAL UNITS WITH A 3.5 ACRE PUBLIC P ARK AT STEVENS CREEK BOULEV ARD AT FINCH AVENUE SECTION I: PROTECT DESCRIPTION Application No.: Applicant: Location: U-2005-15 Kelly Snider (Toll Bros) Stevens Creek Blvd @ Finch Ave SECTION II: FINDINGS WHEREAS, the Planning Commission of the City of Cupertino received an application for a Use Permit, as described in Section 1. of this Resolution; and WHEREAS, the necessary public notices have been given in accordance with the Procedural Ordinance of the City of Cupertino, and the Planning Commission has held one or more public hearings on this matter; and WHEREAS, the applicant has met the burden of proof required to support said application; and has satisfied the following requirements: 1) The proposed use, at the proposed location, will not be detrimental or injurious to property or improvements in the vicinity, and will not be detrimental to the public health, safety, general welfare, or convenience; 2) The proposed use will be located and conducted in a manner in accord with the Cupertino Comprehensive General Plan and the purpose of this title. NOW, THEREFORE, BE IT RESOLVED: That after careful consideration of maps, facts, exhibits, testimony and other évidence submitted in this matter, the application for Use Permit is hereby recommended for I, -/'-1 Resolution No.6368 U-2005-15 January 26,2006 approval, subject to the conditions which are enumerated in this Resolution beginning on Page 2 thereof; and That the subconclusions upon which the findings and conditions specified in this resolution are based and contained in the public hearing record concerning Application No. U-2005-15 as set forth in the Minutes of the Planning Commission Meeting of January 26, 2006, and are incorporated by reference as though fully set forth herein. SECTION III: CONDITIONS ADMINISTERED BY THE COMMUNITY DEVELOPMENT DEPT. 1. APPROVED EXHIBITS The recommendation of approval is based on Exhibits titled: "Calabazas Place: Cupertino, California, Mixed-Use Community" dated December 14, 2005, consisting of 54 sheets labeled 0.0, 0.1, MPl - MP3, MP 3.0, MP4, MP5, AO.l - AO.2, Colored Streetscape, Al - A9 (A-4 not labeled), ARO - 10, 11 - L6, CO.l, COl.1 -1.3, C2.1 - 2.3, C3.1 - 3.6, C4.1 - C4.3, T-l, except as may be amended by the Conditions contained in this Resolution. 2. DEVELOPMENT APPROVAL Approval is granted for the demolition of an existing approximately 150,000 sq. ft. office building and the construction of a mixed-use development consisting of approximately 113,000 sq. ft. of commercial uses, 399 residential units and 3.5- acre park. 3. PROTECT AMENDMENTS The Planning Commission shall review amendments to the project, considered major by the Director of Community Development. 4. BELOW MARKET RATE HOUSING PROGRAM The applicant shall participate in the City's Below Market Rate (BMR) Housing Program by dedicating 20% of the units (in form of senior apartment units). The applicant shall record a covenant that shall be subject to review and approval by the City Attorney, to be reviewed and approved by the City Attorney prior to final map approval. 5. ARCHITECTURAL AND SITE DESIGN The project shall be required to obtain an Architectural and Site approval by the City Council prior to issuance of building permits. The applicant shall address the following issues: /5-15 - 2- Resolution No.6368 U-2005-l5 January 26,2006 General » High quality materials and exceptional architectural detailing shall be used throughout the project. >- Architectural style and materials between the residential and commercial must relate and be compatible. Commercial » Use warmer materials and colors on the commercial shopping center » More interior parking lot shading trees should be provided in the parking court and along the shops. » Detail design guidelines shall be developed to ensure that future tenants will adhere. >- Provide a stronger distinct architectural expression for the retail center. » The tenant space at the terminus of the entry drive must provide a stronger architectural feature since it is a focal point of the center. >- Develop stronger pedestrian amenities (i.e., canopies, trellises, outdoor seating areas, plazas, special paving materials, seats, lights and fountains). >- Stronger screen buffers (landscaping & screen walls) should be considered to help screen the loading areas of the shopping center along Valko Parkway and to ensure that no walls are exposed to graffiti tagging. Residential » East Terrace shall have a functional and architectural entrance along the Stevens Creek Blvd. frontage. The entry feature shall also serve as a significant building break in the long façade. » Stronger projecting elevations along major streets (Stevens Creek & Tantau) » Eliminate the hip roof element in favor of a stronger modern design expression. » Add metal cornices and wall cap elements that relate to the retail center. » Provide higher quality and better-delineated pedestrian scale entries from the street. >- Consider corner bakonies to improve the visual transition at the building corners. » There needs to be a cohesive architectural concept that all of the residential complexes draw from. » The senior apartment building shall be redesigned for better sound attenuation from the highway noise. >- Provide more building offsets on the East Terrace building between the third and fourth floor along Stevens Creek Boulevard and Tantau Avenue to conform to the required height to setback ratio and so that it takes on the appearance of a three story building with the fourth floor ~etback (similar that to the Metropolitan building along Stevens Creek Blvd.). I f)-It; - 3- Resolution No.6368 U-2005-15 . January 26, 2006 6. PARKING Parking Garage Entry Width The width of the parking garage entry shall be no larger than 20 feet in keeping with the Heart of the City Specific Plan. Garage ramps shall comply with building code and fire code requirements. West Terrance Driveway The developer shall evaluate the feasibility of greater separation of the W. Terrace Driveway from the service entrance driveway to the Rose Bowl development. Or consolidate the two driveways. Additional Parking on Val/co Parkway Additional diagonal stalls (approximately 40 stalls) shall be provided along the north side of Valko Parkway avoiding removal of the existing Ash trees to the maximum extent possible. The parallel stalls along the project frontage of East Terrace (south of Valko Parkway) shall be diagonal stalls to match the rest of the stalls along Valko Parkway. The parking plan shall be revised and approved as part of the Architectural and Site approval. 7. OPEN SPACE The project shall comply with the Heart of the City Specific Plan for private and common open space requirements for commercial and residential projects. 8. BUILDING PERMIT APPROVAL The Director of Community Development shall review the final building permits for full conformance with this approval and the design approval prior to issuance of building permits. 9. CONSTRUCTION MANAGEMENT PLAN A construction management and parking plan shall be prepared by the applicant and approved by staff prior to issuance of building permits. Staging of construction equipment shall not occur within 250 feet of any existing residential property. Said plan shall provide provisions for the following: · Construction Vehicle Access and Routing. . Construction Equipment Staging Area. . Dust Control (Best Management Practices). 10. LANDSCAPING AND TREES PRESERVATION , All recommendations in the report by Barrie D. Coates and Associates dated July 21, 2005 and October 30, 2005 shall be followed based on the replacement and retention of trees unless otherwise indicated by the City Council. The City / S-/7 -4- Resolution No.6368 U-2005-15 January 26,2006 Arborist shall review the detailed site and landscaping plan prior to the Architectural and Site approval for additional recommendations and conditions. Protection Plan As part of the building permit drawings, a tree protection plan shall be prepared by a landscape architect or certified arborist for the trees specified to be preserved on the site. The tree protection shall be inspected and approved by the landscape architect prior to beginning construction. The applicant must make the necessary revisions to the proposed site plan (Villas) to preserve Tree #174 (55-inch Sycamore Tree, as identified in the City Arborist's tree report). The dead Valley Oak Tree located at the northeasterly corner of Stevens Creek Blvd. and Finch Ave. must be replaced by a field grown oak to be planted at the northwesterly corner of the Stevens Creek Blvd. and Finch Ave. in front of the proposed park. Tree Protection Bond A $130,000 tree bond shall be provided by the applicant prior to issuance of the first building permit to ensure protection of existing trees on the site during construction. The bond shall be returned after occupancy permit is issued upon provision of a report by a landscape architect or certified arborist indicating that the trees are in good condition. 11. IMPROVEMENT AND MAINTENANCE DISTRICT The applicant shall create an Improvement and Maintenance District to maintain the public street frontages (including parking, lighting, landscaping and street maintenance along Finch Ave. and Valko Parkway from Tantau Ave. to the West Terrace Condominiums) and the park area (estimated to equal 50% of the approved park area) that principally benefits the project. Said district shall be part of the Covenant Codes and Restrictions of the project and shall be reviewed and approved by the City Attorney prior to approval of the final maps. 12. MINIMUM COMMERCIAL BUILDING SETBACK The commercial buildings along Stevens Creek Blvd. shall be setback at an average of 35 feet (no less than 30 feet at any given point) measured from the curb. 13. CREEK TRAIL IMPROVEMENTS The applicant shall contribute $140,000 to the improvements of a trail connection along the east side of Calabazas Creek from Valko Parkway to 1-280. This contribution shall be used by the City to administer a creek trail plan, to coordinate the necessary revisions to the General Plan (and/ or other 'related specific plans) and the necessary approvals and improvements. - 5 - /5-/8 Resolution No.6368 U-2005-15 January 26,2006 14. PARK IMPROVEMENTS The applicant shàll grant the City the option to purchase (at market value) up to .21-acre (or the amount of acreage to allow for a full 3-acre rectangular park south of the West Terrace Project) of additional land south of West Terrace Condominium. A minimum 3.5-acre portion of the dedicated park area shall be fully improved by the applicant. In addition, funding shall be provided to the City to purchase a pocket park/ trail head in the Rancho Rinconada area (next to the Saratoga Creek linear park). Portion of the pan handle park (.71-acre park east of East Terrace) could be modified to accommodate a few of the displaced units from the adjustments to the West Terrace density and building configurations to facilitate the full 3-acre rectangular park along Stevens Creek Blvd. 15. PEDESTRIAN AND SIDEWALK IMPROVEMENTS A new pedestrian sidewalk along the west side of Tantau Avenue (through the overpass north of Hwy. 280 to the first driveway on the west side of Tantau Avenue) shall be constructed prior to the final occupancy of the project. Appropriate permits and approvals shall be obtained from the California Department of Transportation prior to the final approval of the improvement plans. 16. PUBLIC ART/GATEWAY FEATURES The applicant shall set aside .25% (up to $100,000) of the total construction valuation for on-site art as per General Plan Policy 2-63. The applicant shall develop a public art and gateway feature plan for the project. The plan shall be reviewed by the Fine Arts Commission prior to the City Council's consideration of the Architectural and Site Approval 17. SECURITY PLAN FOR PARKING GARAGE A security plan for the parking garages shall be prepared by the applicant and approved by the Sheriff's Department prior to final occupancy. 18. RESTAURANT ODOR ABATEMENT All restaurants shall install odor abatement system to reduce the odor impact from the restaurants to the adjacent community. Detailed plans shall be reviewed and approved by the Community Development Director prior to issuance of building permits. J ,-/1 - 6- Resolution No.6368 U-2005-15 January 26, 2006 19. GENERAL PLAN CONFORMANCE Unless otherwise stated by the City Council. The project shall: » Provide more building offsets on the East Terrace building between the third and fourth floor along the Stevens Creek Blvd. and Tantau Avenue elevations in order to conform to the 1.5 to 1 slope line. ~ Reduce the density of the West Terrace building from 36 units/acre to 35 units/acre. This is compatible with the density proposed by the adjacent Menlo Equities project (currently in construction) and allowing land to expand the proposed rectangular portion of the park from 2.79-acre park to a better-functioning 3-acre public park along Stevens Creek Blvd. . 20. SANTA CLARA VALLEY WATER DISTRICT A letter of clearance for the project shall be obtained from the Santa Clara Valley Water District prior to issuance of building permits. The developer shall demonstrate that the anticipated structural loads from the commercial buildings along Finch A venue will not impact the underground culvert. 21. SANITARY DISTRICT A letter of clearance for the project shall be obtained from the Cupertino Sanitary District prior to issuance of building permits. 22. ULTILITY EASEMENTS Written approval from the agencies with easements on the property (including PG&E, PacBell and California Water Company, and/or equivalent agencies) will be required as a condition of approval prior to issuance of building permits. 23. BUILDING MATERIAL RECYCLING All existing structures on the site shall be removed prior to or concurrently with project construction. The existing building and site materials shall be recycled to the maximum extent possible subject to the review by the Building Official. The developer shall assume the responsibility to obtain all required demolition permits in accordance with the City Ordinance. 24. FIRE DEPARTMENT A letter of clearance for the project shall be obtained from the Santa Clara Fire Department prior to issuance of building permits. 25. CALIFORNIA DEPARTMENT OF TRANSPORTATION Appropriate permits and approvals shall be obtained from Caltrans prior to final approval of the improvement plans relating to the new sidewalk along the west side of Tantau A venue. 15- ;;J.() -7 - Resolution No.6368 U-2005-15 January 26,2006 26. COVENANT OF RECIPROCAL INGRESSIEGRESS EASEMENT The applicant shall record a deed restriction for necessary reciprocal ingress and egress easement between each lot created by the new development. The applicant shall also record appropriate deed restrictions for necessary reciprocal ingress and egress easements between the adjacent properties to the east, to be implemented at such time that the City can require the same of adjacent property owners. The easement language shall be reviewed and approved by the City Attorney. The covenant of easement shall be recorded prior to final map approval. 27. PUBLIC PEDESTRIAN EASEMENT Public pedestrian easements over the sidewalk areas (portion on private property) and through the interior pedestrian paths, courtyards and plazas shall be prepared by the developer, approved by the City Attorney and recorded against the subject property prior to final map approval. 28. COVENANTS, CONDITIONS AND RESTRICTIONS (CC&R's) The project CC&R's shall be reviewed and approved by the City Attorney prior to final map approval. 29. SCREENING All mechanical and other equipment on the building or on the site shall be screened so as not to be visible. Screening material shall match building features and materials. The location of equipment and necessary screening shall be reviewed and approved by the Director of Community Development prior to issuance of building permits. 30. MITIGATION MONITORING PROGRAM The project shall adhere to all of the mitigation measures identified by the Environment Review Committee (November 16,2005 and December 14, 2005) and mitigation monitory program, prepared by David Powers and Associates, dated January 2006. SECTION IV: CONDITIONS ADMINISTERED BY THE PUBLIC WORKS DEPT. 31. STREET WIDENING Street widening, improvements and dedications shall be provided in accordance with City Standards and specifications and as required by the City Engineer. 32. CURB AND GUTTER IMPROVEMENTS Curbs and gutters, sidewalks and related structures shall be installed in accordance with grades and standards as specified by the City Engineer. 15~Z.1 - 8- Resolution No.6368 U-2005-15 January 26,2006 33. FIRE HYDRANT Fire hydrants shall be located as required by the City. 34. TRAFFIC SIGNS, DETAILS AND LEGENDS Traffic control signs, details and legends shall be placed at locations specified by the City. All improvement plans shall include all necessary signage, details and legends along with traffic control plans. 35. STREET TREES Street trees shall be planted within the Public Right of Way and shall be of a type approved by the City in accordance with Ordinance No. 125. 36. GRADING Grading shall be as approved and required by the City Engineer in accordance with Chapter 16.0S of the Cupertino Municipal Code. 401 Certifications and 404 permits maybe required. Please contact Army Corp of Engineers and/or Regional Water Quality Control Board as appropriate. 37. DRAINAGE Drainage shall be provided to the satisfaction of the City Engineer. Pre and Post- development calculations must be provided to indicate whether additional storm water control measures are to be installed. 3S. UNDERGROUND UTILITIES The developer shall comply with the requirements of the Underground Utilities Ordinance No. 331 and other related Ordinances and regulations of the City of Cupertino, and shall coordinate with affected utility providers for installation of underground utility devices. The developer shall submit detailed plans showing utility underground provisions. Said plans shall be subject to prior approval of the affected Utility provider and the City Engineer. 39. IMPROVEMENT AGREEMENT The project developer shall enter into a development agreement with the City of Cupertino providing for payment of fees, including but not limited to checking and inspection fees, storm drain fees, park dedication fees and fees for undergrounding of utilities. Said agreement shall be executed prior to issuance of construction permits. Fees: a. Checking & Inspection Fees: $ 5% of Res. Off-Site Improvement Cost $ 6% of Commercial Off-Site Improvement Cost -9 - 1~-1.2. Resolution No.6368 U-2005-15 January 26,2006 b. Grading Permit: c. Development Maintenance Deposit: d. Storm Drainage Fee: e. Power Cost: f. Map Checking Fees: g. Park Fees: $ 5% of On- Site Improvement Cost $ 3,000.00 $ 32,635.00 ** $ 6,750.00 *N/A * Park fees are not required based on the 3.5-acre public park allotment. Bonds: a. Faithful Performance Bond: 100% of Off-site and On-site Improvements b. Labor & Material Bond: 100% of Off-site and On-site Improvement c. On-site Grading Bond: 100% of site improvements. -The fees described above are imposed based upon the current fee schedule adopted by the City Council. However, the fees imposed herein may be modified at the time of recordation of a final map or issuance of a building permit in the event of said change or changes, the fees changed at that time will reflect the then current fee schedule. ** Developer is required for one-year power cost for streetlights 40. TRANSFORMERS Electrical transformers, telephone vaults and similar above ground equipment enclosures shall be screened with fencing and landscaping or located underground such that said equipment is not visible from public street areas. 41. DEDICATION OF WATERLINES The developer shall dedicate to the City all waterlines and appurtenances installed to City Standards and shall reach an agreement with San Jose Water for water service to the subject development. 42. BEST MANAGEMENT PRACTICES Utilize Best Management Practices (BMP's), as required by the State Water Resources Control Board, for construction activity, which disturbs soil. BMP plans shall be included in your grading and street improvement plans. 43. AMENDED DEVELOPMENT BEST MANAGEMENT PRACTICES (BMP) REQUIREMENTS In addition, the applicant must include the use and maintenance of site design, source control and stormwater treatment BMP's, which must be designed per approved numeric sizing criteria. The City encourages the use of HMP (Hydromodification Plan) BMP's in the design of the project. The property -10- 15"-23 Resolution No.6368 U-2005-15 January 26,2006 owners with treatment BMPs will be required to certify on-going operation and maintenance. 44. NPDES CONSTRUCTION GENERAL PERMIT The applicant must obtain a notice of intent (NOI) from the State Water Resources Control Board, which encompasses a preparation of a Storm Water Pollution Prevention Plan (SWPPP), use of construction Best Management Practices (BMP's) to control storm water runoff quality and BMP inspection and maintenance. 45. EROSION CONTROL PLAN The developer must provide an approved erosion control plan by a Registered Civil Engineer. This plan should include all erosion control measures used to retain materials on-site. Erosion Control notes shall be stated on the plans. 46. TRASH ENCLOSURES The trash enclosure plan must be designed to the satisfaction of the Environmental Programs Department. Clearance by the Public Works Department is needed prior to obtaining a building permit. 47. MAINTENANCE AGREEMENT The developer shall enter into a maintenance agreement with the City to maintain all non-standard items in the City's Right-of-way. 48. TRAFFIC DEPARTMENT The developer shall be required to address the following comments and concerns: a. The project is required to perform a Transportation Impact Analysis (TIA). The scope of the TIA has already been discussed with the applicant's traffic engineer. Warrants for a traffic signal at the intersection of Valko Parkway and Finch Avenue is one of the items to be analyzed. However, some of the elements of the current site plan may affect the scope of the TIA. The project will be required to undertake mitigations of impacts to the surrounding transportation system identified by the TIA. b. The project will be responsible for making operational improvements to the surrounding traffic systems, including but not limited to installation of pedestrian countdown signal heads and installation or upgrade of emergency vehicle preemption (EVP) at surrounding signalized intersections. Traffic signal and roadway modifications shall be reqúired to eliminate existing and potential operational deficiencies. 15 -2.'1 - 11 - Resolution No.6368 U-2005-15 January 26,2006 c. Public Works is opposed to on street parking along Stevens Creek Boulevard, shown on the preliminary plans. d. Public Works is opposed to the modifications to Finch Avenue as currently shown on the plan. Public Works is prepared to accept parallel parking along Finch Avenue, but does not wish to have the width of the road reduced from the current four lanes to two lanes. No analysis of the future impact of doing so has been done. The effects on of any significant modifications to Finch Avenue on the surrounding transportation system and traffic circulation must be analyzed. e. Vehicle and pedestrian trips and parking demand generated by the park must be analyzed. f. Significant pedestrian facilities, such as embellished crosswalks across Finch Avenue and Valko Parkway may be required. A significant mid- block crosswalk is already shown on the site plans. g. Adequacy of traffic circulation on each site and from each site to and from the surrounding roadways shall be analyzed. Mid-block driveways along Stevens Creek will be right turn in, right turn out only. There is potential for conflict at the two site driveways on the south side of Valko Parkway as shown on the plan. PASSED AND ADOPTED this 26th day of January 2006, at a Regular Meeting of the Planning Commission of the City of Cupertino, State of California, by the following roll call vote: AYES: COMMISSIONERS: Chairperson Miller, Vice-Chair Giefer, Saadati Wong NOES: ABSTAIN: ABSENT: COMMISSIONERS: COMMISSIONERS: COMMISSIONERS: ATTEST: APPROVED: Is/Steve Piasecki Steve Piaseki Director of Community Development IslMarty Miller Marty Miller, Chairperson ~ Planning Commission G:\Plallllillg\ PDREPORT\ RES \ 2005\ U-2005-J5.doc I ~,~S - 12- TM-2005-04 CITY OF CUPERTINO 10300 Torre Avenue Cupertino, California 95014 RESOLUTION NO. 6370 OF THE PLANNING COMMISSION OF THE CITY OF CUPERTINO APPROVING A TENT A TIVE MAP TO SUBDIVIDE FOUR PARCELS (APPROXIMATELY 26-ACRES) UP TO 6 PARCELS A COMMERCIAL AND RESIDENTIAL DEVELOPMENT CONSISTING OF APPROXIMATELY 113,000 SQUARE FEET OF COMMERCIAL SHOPPING CENTER, UP TO 399 RESIDENTIAL UNITS AND A 3.5 ACRE PUBLIC P ARK AT STEVENS CREEK BOULEV ARD AT FINCH A VENUE SECTION I: PROTECT DESCRIPTION Application No.: Applicant: Location: TM-2005-04, EA-2005-17 Kelly Snider (Toll Bros.) Stevens Creek @ Finch SECTION II: FINDINGS WHEREAS, the Planning Commission of the City of Cupertino received an application for a Tentative Subdivision Map as described in Section I of this Resolution; and WHEREAS, the necessary public notices have been given as required by the Subdivision and Procedural Ordinances of the City of Cupertino, and the Planning Commission has held at least one public hearing in regard to the application; and WHEREAS, the applicant has met the burden of proof required to support said application; and has satisfied the following requirements: a) That the proposed subdivision maps are consistent with the City of Cupertino General Plan. b) That the design and improvements of the proposed subdivision are consistent with the General Plan. c) That the site is physically suitable for the type and intensity of development contemplated under the approved subdivision. d) That the design of the subdivision or the proposed improvements are not likely to cause substantial environmental damage nor substantially harm fish and wildlife or their habitat. e) That the design of the subdivision or the type of improvements associated therewith are not likely to cause serious public health problems. IS -2.& Resolution No.6370 Page 2 TM-2005-04 January 26,2006 NOW, THEREFORE, BE IT RESOLVED: That after careful consideration of maps, facts, exhibits, testimony and other evidence submitted in this matter, the application TM-2005-04 for a Tentative Map is hereby approved as modified, subject to the conditions which are enumerated in this Resolution beginning on page 2 thereof, and That the subconclusions upon which the findings and conditions specified in this Resolution are based and contained in the Public Hearing record concerning Application TM-2005-04, as set forth in the Minutes of Planning Commission Meeting of January 26, 2006, and are incorporated by reference as though fully set forth herein. SECTION III: CONDITIONS ADMINISTERED BY THE COMMUNITY DEVELOPMENT DEPT. 1. APPROVED EXHIBITS The recommendation of approval is based on Exhibits titled: "Tentative Map For Calabazas Place" dated December 15, 2005, consisting of 16 sheets labeled CO.l, COl.l - 1.3, C2.1 - 2.3, C3.1 - 3.6, C4.1 - C4.3, except as may be amended by the Conditions contained in this Resolution. PASSED AND ADOPTED this 26th day of January 2006, at a Regular Meeting of the Planning Commission of the City of Cupertino, State of California, by the following roll call vote: AYES: COMMISSIONERS: Chairperson Miller, Vice-Chair Giefer, Saadati Wong COMMISSIONERS: COMMISSIONERS: COMMISSIONERS: NOES: ABSTAIN: ABSENT: ATTEST: APPROVED: I s/Steve Piasecki Steve Piasecki Director of Community Development IslMarty Miller Marty Miller, Chairperson Cupertino Planning Commission g:jplanning/pdreport/res(fM-2005-04 res.doc 15-2.7 CITY OF CUPERTINO 10300 Torre Avenue Cupertino, California 95014 RESOLUTION NO. 6372 (MINUTE ORDER) OF THE PLANNING COMMISSION OF THE CITY OF CUPERTINO RECOMMENDING THAT THE COUNCIL CONSIDER ADDITIONAL REQUIREMENTS RELATED TO BELOW MARKET RATE UNITS PROTECT DESCRIPTION Application No.: Applicant: Location: U-2005-15, TM-2005-05, Z-2005-04, EXC-2005-18, EA-2005-07 Toll Brothers North of Stevens Creek Boulevard. and South of 1-280 between Tantau Avenue and Finch Avenue. BELOW MARKET RATE UNITS Request that the Council ask the applicant if they are willing to provide an additional 5% regular BMR units dispersed throughout the project. PASSED AND ADOPTED this 6th day of February 2006 at a Regular Meeting of the Planning Commission of the City of Cupertino, State of California, by the following roll call vote: AYES: COMMISSIONERS: Chairperson Miller, Vice-Chair Giefer, Saadati Wong NOES: ABSTAIN: ABSENT: COMMISSIONERS: COMMISSIONERS: COMMISSIONERS: ATTEST: APPROVED: Is/Steve Piasecki Steve Piasecki Director of Community Development /s/Marty Miller Marty Miller, Chairperson Planning Commission 15-28 ORDINANCE NO. 1977 AN ORDINANCE OF THE CITY COUNCIL OF THE CITY OF CUPERTINO REZONING OF AN 32.58 GROSS ACRE PARCEL FROM PLANNED INDUSTRIAL ZONE, P(MP), TO PLANNED RESIDENTIAL AND COMMERCIAL, P(RES, COM), AND PUBLIC PARK, PR, LOCATED AT NORTH OF STEVENS CREEK BOULEVARD AND SOUTH OF 1-280 BETWEEN TANTAU AVENUE AND FINCH AVENUE WHEREAS, an application was received by the City (Application no. Z-2005-04) for the rezoning of a property to Planned Residential and Commercial, P(RES, COM) and Public Park (PR); and WHEREAS, the rezoning will be consistent with the City's General Plan land use map, proposed uses and surrounding uses; and WHEREAS, upon due notice and after one public hearing the Planning Commission recommended denial of the rezoning, deferring the decision to the City Council; and WHEREAS, a map and legal description of the subj ect property is attached hereto as Exhibit A, as a proposed amendment to the Master Zoning Map ofthe City of Cupertino. NOW, THEREFORE, BE IT ORDAINED AS FOLLOWS: Section I. That the property described in attached Exhibit A is hereby rezoned to Planned Residential and Commercial, P(RES, COM), and Public Park (PR); and that Exhibit A attached hereto is·made part of the Master Zoning Map of the City of Cupertino. Section 2. This ordinance shall take effect and be in force thirty (30) days after its passage. INTRODUCED at a regular meeting of the City Council of the City of Cupertino the 7'h day of February, 2006 ançl ENACTED at a regular meeting of the City Council of the City of Cupertino the _day of _ , 2006, by the following vote: Vote Members ofthe Citv Council AYES: NOES: ABSENT: ABSTAIN: ATTEST: APPROVED: City Clerk Mayor, City of Cupertino 15~2.1 I ~ o ;: ~ e !5 ~ EXHIBIT A - - V4~ ~c. J,. 0 Þ ¿""~o.... ~~Jf'". '- "4ÿ 1 ·1 ~I : ¡.. .... ~ I ~I 1 LOT 1 ~ / ..., / ~. j~ r- 2.45 NET AC I'~" I 2.65 GROSS AC !! ,~ REZONE 1 I ~ ~ FROM: P(CG. 0, ML. HOTEL). MIXED USE 1 ~()! ,~ PLANNED DEVELOPMENT <:s m e. '~"'",V~" "_-'-"'1, ! _ ..:i!9'JI·<fjy ..U5.7-!:.. _ ~ I !§ is ::ao ~ ~ ~ LL: ... ~ N58"1"''Jrw 5.00' R~JaOO' ð=90VOVO" L=47.12' ò '" ~ " :... R=JO.OO' 1:::..-90'00'00" L=r47.12' S,Jf"45'.2J"W 0.15' / / Ÿì, \. f ," .!;¡ !!/ ~ &{<:/ I "i 1 1::: " i;j I I LOT3 ¡.. Bl ¡!; ~l LOT2 <;; ~ 1." "" ,.. I~ ~ ~ ~I ~l ~ ~ L R=25. 00' t::. -90W'10· L=39.31' R~25.oo· 6,=270Vl'S'¡''' L-117.82' - - -- S89'J8'OO"W 322.34' sa9"J"µ'''W STEVENS CREEK BOULEVARD SCALE l' = 1 00' ..~. Bkf ':A~;¡,,__ . 'V·"··-'· ~¡:i~ ll\ Sub j eel CALABAZAS PLACE 15~ 30 ZONING PLAT MAP - LOT 1· Job No. 20056051 By RO Date 12/1/05 Chkd.JM SHEET 1 OF 5 981 RIDDER PARK DRIVE SUITE 100 SAN JOSE, CA 95131 408-467-9100 408-467-9199 (FAX) ~ ,........."..- ~Bkf December I, 2005 BKF No. 20056051-10 Page 1 of 1 t.ÜGlKEf.R5! 'SÜRVË"fOii5) PLi\Ni~H~;¡i:S EXffiBIT "A" LEGAL DESCRIPTION FOR ZONING PURPOSES LOTI All that certain real property situate in the City of Cupertino, County of Santa Clara, State of California, described as follows: Being a portion of Parcel B, as shown on Lot Line Adjustment, dated May 1998, by Kier & Wright, job #89189-23, described as follows: BEGINNING at the most northerly corner of said Parcel B, said point also being the beginning of a non tangent curve, concave to the south, having a radius of 595.00 feet, from which point a radial line bears South 03°20'52" West; Thence easterly along said curve and along the southerly line of Valko Parkway 110.00 feet in width, as shown on Parcel Map, filed August 3, 1987 in Book 576 of maps at page 31 and 32, Records of Santa Clara County, through a central angle of 15°06'04" and an arc length of 156.82 feet; Thence leaving said southerly line of said Valko Parkway the following four (4) courses: 1) South 00°28'16" East 454.49 feet. 2) South 89°31'44" West 345.73 feet. 3) North 00°24'00" West 179.00 feet. 4) North 88°54'46" East 195.49 feet. Thence NOlth 01 °05' 14" West 304.23 feet to the point of BEGINNING. Lot I contains an area of 106,701 square feet (2.45 acres) more or less. 1"31 .~. ~~ .'); ~. .~ I / ~ ¡/~/ '/1 . ! "> I ::¡ I ,f Þ / I r I ~I ~¡l111 - S8g-J/·4.·W 34.5.77 - , ~ I I i' I ~ oq: ~ ! " I VALL CD PARKWAY r- -~.9s.oo· \ - 4..,.",. Ò <:> ~ !' ~ ·1 ~ ~ ... ~ "' .... ~ ~I LOT1 k: " I;j "' EI ì!¡ ~I k: ~ I I LOT2 3.50 NET AC 4.84 GROSS AC ¡;; ¡¡ '" I~ REZONE <:> FROM: P(CG, 0, ML, HOÆL), MIXED USE I ~ PLANNED DEVELOPMENT ~ TO: PR, PUBLIC PARK OR RECREA nONAL '" R=25. 00' 6.-90'08'/0" L=JEl.JI' - -S89:JS'OO"W 322.34' - STEVENS CREEK BOULEVARD ...... ...... N587-1-'J7"W 5.00' J/", ,."" "'..,- ,o.?~ (.........' ...J"q>~o~ SJ1"45'2J"W a/s' ~ ~ I~ I~ 1;] ~ LOT3 ~ ~I ~I ~ 15 '" R::z25.00· t::.=27ovI'5-r L=117.82' ~ SS931'';''¡'''W Ji SCALE l' = 100' '~. .~ Bkf i;'Ü-,,,· ;;1 "'~''£.' ~;1~;~ :Ž~V~+ 981 RIDDER PARK DRIVE SUITE 100 SAN JOSE, CA 95131 408-467-9100 408-467-9199 (FAX) Subject CALABAZAS PLACE J~-~2 ZONING PLAT MAP - LOT 2 Job No. 20056051 By RO Oate 12/1/05 Chkd.JM SHEET 2 OF 5 E_I__IP....... L~Bkf December I, 2005 BKF No. 20056051-10 Page lof2 E.14.i&(»~ËJts" S¡jR;\iËYÓR~:tl PLAN tH itS EXHIBIT "A" LEGAL DESCRIPTION FOR ZONING PURPOSES LOT 2 All that certain real property situate in the City of Cupertino, County of Santa Clara, State of California, described as follows: Being a portion of Parcel B, as shown on Lot Line Adjustment, dated May 1998, by Kier & Wright, job #89189-23, described as follows: BEGINNING at the southwest comer of said Parcel B; Thence the following three (3) courses: 1) North 00024'00"West 527.77 feet 2) North 89°31'44" East 345.73 feet 3) North 00°28' 16" West 454.50 feet to a point on the northerly line of said Parcel B. said point also being the beginning of a non-tangent curve, concave to the southwest, having a radius of 595.00 feet, from said point a radial line bears South 18°26'55" West; Thence easterly along said curve through a central angle of 13°18'27" and an arc length of 138.19 feet; Thence South 58°14'37" East 5.00 feet to the beginning of a curve to the right, having a radius of 30.00 feet; Thence southerly along said curve through a central angle of 90°00'00" and an arc length of 47.12 feet to a point on the easterly line of said Parcel B; Thence North 31 °45'23" East 0.15 feet to the beginning of a curve to the left having a radius of 888.00 feet; Thence southerly along said curve through a central angle of 32°15'33" and a~ arc length of 499.97 feet; Thence South 00°30'10" East 200.19 feet to the beginning of a curve to the right having a radius of 25.00 feet; I S -33 Page 2 of 2 Thence southwesterly along said curve through a central angle of 90°06' 10" and an arc length of 39.31 feet to a point on the southerly line of said Parcel B; Thence South 89°36'00" West 322.34 feet to the Point of BEGINNING. Lot 2 contains an area of 152,457 square feet (3.5 acres) more or less. I S -~.¡ KISur051056051 ILegalslLotl.doc ~ I ,\ .\- ,\~ .~1/ ,~ 0' ¡;; <= '- -<-", ..... ¡, "'-... "'''..,:.' ............... -"'«C"'-... '- c>",.~"'~. LOT 5 ............~ 0 '- -.;... ~~ ~?- ~.¿>.>.~"""L.o~ ...... O· -~ '" ." L. <Ö"'" ...... ~ ~OO'-:--: 4v..?~ l'J'J.9. . (. . , . --~.;:. -.... ·0...., " SJ1 "4S'23'"W a/5' '- I ¿ .z:."'D~ N5814 'J7"W 5.00' ,~. n~ ~ .,<y .~ / / $ l I " tl III 1/1 .' .~ I .J:¡ I~ ,~I I; (I .11 (I /1 I I I I!I¡ I ;::)1 ~ :::.¡; oq: ~ ;c l( '- ..... ..... æ""".>- ~"'$ ~O' ~<lvo;:" ;S;O;SJ". ("'-? .....':5~<.? - Co '" F - LOT3 1 I~ t!! " '" hf ~ " ' ...' I'" I ~ "> is "i '" "" ~ ~ t" ~I ~I ~ ~ .... ~ 8.37 NET AC 10.68 GF/OSS AC REZONE FROM: P(CG, 0, ML. HOTEL), MIXED USE PLANNED DEVELOPMENT TO: P, RESIDENTIAL/COMMERCIAL R=25. 00' A =270VI '54" L-117.82' -- SB9"3f'#"W .J8J.80· L_f7J.26' R=200o.00' A~4'57'49" ·L~446.29' R=:2000.õõ' ô-:'ô""f! '27 STEVENS CREEK BOULEVARD ...~. Bkf :;:-~~:;-~.:' ~-' , . ";~ìi:J;'/'; - . !?:";, ~-':;~.:: ' 981 RIDDER PARK DRIVE SUITE 100 SAN JOSE, CA 95131 408-467-9100 408-467-9199 (FAX) SCALE l' = 100' Subject CALABAZAS PLACE ZON I NG PLAT MAP LOT 3 1'5·35 Job No. 20056051 By RO Date 12/1/05 Chkd.JM SHEET 3 OF 5 E_/II1aII.-/P..- ~Bkf December I, 2005 BKF No. 2005605 1-10 Page 1 of 2 EHGiMirt!tS-! $tJItV¡;:'VD:!i$l ~Ul;ltNËRS EXIDBIT "A" LEGAL DESCRIPTION FOR ZONING PURPOSES LOT3 All that certain real property situate in the City of Cupertino, County of Santa Clara, State of California, described as follows: Being all of Parcel 2, and a portion of Parcel 3, as shown on Parcel Map, filed August 3, 1987 in Book 576 of Maps at Pages 31 and 32, Records of Santa Clara County, more particularly described as follows: BEGINNING at a point on the easterly line of Finch Avenue being 76.00 feet in width, said point also being the southerly terminus of the course "South 00°30"10' East 201.07 feet" of the westerly line of said Parcel 2, as shown on said Parcel Map. Thence along said westerly line of said Parcel 2 the following four (4)courses: I) North 00°30' 10' West 201.07 feet to the beginning of a curve to the right having a radius of 812.00 feet; 2) Northeasterly along said curve through a central angle of 32°15'33", and an arc length of 457.18 feet; 3) South 31 °45'23" West 0.15 feet to the beginning of a curve to the right having a radius of 30.00 feet; 4) Northeasterly along said curve through a central angle of 90°00'00", and an arc length of 47.12 feet to a point on the southerly line of Valko Parkway being 110.00 feet in width, as shown on said Parcel Map; Thence South 58°14'37" East 362.70 feet to the beginning of a curve to the left having a radius of 705.00 feet; Thence easterly along said curve through a central angle of 20°39' 53", and an arc length of 254.27 feet; Thence leaving said southerly line of Valko Parkway South 00°28' 16" East 366.49 feet to a point on the northerly line of Stevens Creek Boulevard, varying in width, as shown on said Parcel Map, said point also being the beginning of a non-tangent curve concave to the south, having a radius of 2000.00 feet, from said point a radial line bears South or °14'38" East; 15·3{, Page 2 of 2 Thence along said northerly line of Stevens Creek Boulevard and the southerly line of said Parcels 2 and 3 the following four (4) courses: I) Westerly along said curve through a central 04°11'27", and an arc length of 146.29 feet to the beginning of a reverse curve having a radius of 2000.00 feet; 2) Westerly along said curve through a central angle of 04°57'49", and an arc length of 173.26 feet; 3) South 89°31'44" West 363.80 feet to the beginning of a curve to the right, having a radius of 25.00 feet; 4) Northwesterly along said curve, through a central angle of 89°58'06", and an arc length of 39.26 feet to the point of BEGINNING. Lot 3 contains an area of 364,713 square feet (8.37 acres) more or less. 15-37 K:\Sur05\05605\ ILegalslLot3.doc "'''19 >,....:--.. ..J'..>~" ?->~ "'...,>. ~ " ~ ¿ I~ ""'.s,oo~ J .... 4 "'tJ'..?'lOJ, .. "'''''? ~L:::£.89E· \ \ \. \\ R '"' ;:! \~ \ I .1 .,~ .~1/ jI} 0' þ Z·' LOT5 NOO'28',S"W 14.00' R=25. 00' t:.-90"OO'OO" b:.J9.27' ...... .f''''';5".,p'- :>:00' -=----- 4""V"...?~ '<'lJ':J,9'" - t. =>JJ~ 67 S09"J,'44"W 215.0J' "--bi ...... ?,> ·o,.;>~ ...... ~vo ~oo· 4", . -- ':.?7J~ -....; '0"£ R=25. 00' 6. =90'00'00· £=39.27' l VALLCO PARKWA Y ts:.5S· LW2.J7 SB93':1:."W~I5.0J· 1 LOT 4 1 ~ ~ ¡I I· ¡;¡ :::.; r ~ 3.08 NET AC ~ LOT3 4.51 GROSS AC ¡. ~ .. ~ ~ REZONE ~ '" I~ ... ~ 1'<\ FROM: P(CG, 0, ML. HOTEL), MIXED USE PLANNED DEVELOPMENT ~ 1 TO: p, RESIDENTIAL/COMMERCIAL 1 R=200aoo' A =355"02"'" L=12J93.1f· L =28. 97' R=50.00· ð. =90VO'oO" £=78.54' I I J ò o - " . - -sa9"J,'44ÏY J04.Y L-70,08' =02'00'28" L=103.18' /)..02"57'2/ . R-2000. 00' 6.=0,(,'57'-19" £=173.26' ... ~ STEVENS CREEK BOULEVARD SCALE l' = 100' Sub j ect CALABAZAS PLACE ( S -3fJ ZONING PLAT MAP - LOT 4 Job No. 20056051 By RO Date 12/1/05 Chkd.JM SHEET 4 OF 5 " -, '~BkJ ;...~ }:~.' ~Zjh '.,~;"...:õ;:'... : ,':.'~~!',:~:~,:~ .).: " :e -" '0 ~. E ,_,._ 981 RIDDER PARK DRIVE SUITE 100 SAN JOSE, CA 95131 408-467-9100 408-467-9199 (FAX) ~Bkf December I, 2005 BKFNo.2005605l-1O Page lof2 t.,",!Glf¡ EERSt Sti!RVtvO!tS1PLAtU EIt5 EXillBIT "A" LEGAL DESCRIPTION FOR ZONING PURPOSES LOT 4 All that certain real property situate in the City of Cupertino, County of Santa Clara, State of California, described as follows: Being a portion of Parcel 3, as shown on Parcel Map, filed August 3, 1987 in Book 576 of Maps at Pages 31 and 32, Records of Santa Clara County, more particularly described as follows: BEGlL"INING at a point on the northerly line of Stevens Creek Boulevard varying in width, said point also being the easterly terminus of the course "South 89°31"44' West 304.37 feet" of the southerly line of said Parcel 3, as shown on said Parcel Map. Thence South 89°31 '44" West 304.37 feet to the beginning of a curve to the left, having a radius 2000.00 feet; Thence Westerly along said curve through a central angle of 00°46'22", and an arc length of 26.97 feet Thence Leaving said southerly line of said Parcel 3 South 00°28' 16" East 366.49 feet to a point on the southerly line of Vallco Parkway 110.00 in width, as shown on said Parcel Map, said point also being the beginning of a non-tangent curve, concave to the north, having a radius of 705.00 feet, from said point a radial line bears North 11 °05'30" East; Thence easterly along said curve through a central angle of 11°33'46", and an arc length of 142.28 feet; Thence South 89°31'44" West 215.03 feet to the beginning of a curve to the right, having a radius of 25.00 feet; Thence southerly along said curve through a central angle of 90°00'00" and an arc length of 39.27 feet to a point on the easterly line of said Parcel 3; Thence South 00°28' 16" East 277.00 feet to the beginning of a curve to the right, having a radius of 50.00 feet; /5'- 39 Thence southwesterly along said curve through a central angle of 90°00'00" and an arc length of 78.54 feet to the point of BEGINNING. Lot 4 contains an area of 134,234 square feet (3.08 acres) more or less. I 5 -46 K:\Sur05\056051 ILegalsILot4.doc ò o ~ !' ~ v~ ~.o f'..... ~~ / ............... 0 4S'~~ I ~.... ~4 I ':'D,.. -.. :,ê>:;. ,.,~ / ">~~">ð" ~~.. "...... ~~ I I ... ~ LOTS 7.97 NET AC 9.90 œoss AC I~ Ii I; ~ iiì ~ .<1 15 " I~ '" I I I -<-", "',. .... "'j.~ ~...... ?-b ..,g..>~ REZONE FROM: P(MP), PLANNED INDUSTRIAL ZONE TO: p. RESfDENnAL/coMM£RCIAL , \- ~~ ¡> .... !') ~ '" ,~ , ...... ,. V-A...... r"0- """T.« o{,.... CO ·'>0. Jb ~~Jf"; "'<if ~ ............ '- ---- SCALE l' I I ",;J ~ ~.9;-- ·Oo·~ 4""tJ"..?~..... '-'$ ¿ -- v.J«.6''?' N00'28'16MJfI 14.00' R=25. 00' ~=90VO'ao" L=J9.27' OT3 S89"J'-:;;"W215.OJ' ?.> .'?>~ '- - - ,., o ~vo ~oo· 4v~. __~ 7 ~._ i,/~.~, Bkf o:..'¡'~A':,. ~j:;>,'¡;~\ "'''!'xl'«;. ,0,,. , v......·.~·,' 981 RIDDER PARK DRIVE SUITE 100 SAN JOSE, CA 95131 408-467-9100 408-467-9199 (FAX) Subject CALABAZAS PLACE ZON I NG PLAT MAP - LOT 5 Job No. 20056051 By RO Date 12/1/05 Chkd.JM SHEET 5 OF 5 /5-J.j1 , 'm s ~ o ~I F ,__".- !~.B·m.····ki.. ...........J. ..Ii .. .... December I, 2005 BKF No. 20056051-10 Page I of 2 Eii.iGWË..UŠ, SÙA:'I!f.YÖi!Si PLAN NERS EXHIBIT "A" LEGAL DESCRIPTION FOR ZONING PURPOSES LOTS All that certain real property situate in the City of Cupertino, County of Santa Clara, State of California, described as follows: Being all of Parcel 3, as shown on Parcel Map, filed March 26, 1978 in Book 438 of Maps at Pages 12 and 13, Records of Santa Clara County, more particularly described as follows: BEGINNING at a point on the northerly line of Valko Parkway, being 110.00 feet in width, said point being at the easterly terminus of the course "North 89°31 '44" East 215.03 feet" of the southerly line of said Parcel 3, as shown on said Parcel Map. Thence along said southerly line of said Parcel 3, South 89°31'44" West 215.03 feet to the beginning of a curve to the right having a radius 595.00 feet; Thence westerly along said curve through a central angle of 32°13'39", and an arc length of 334.67 feet; Thence North 58°14'37"West 170.97 feet to a point on the northwesterly line of said Parcel 3, to the beginning of a non-tangent curve, concave to the northwest, having a radius of 372.50 feet, from said point a radial line bears North 29°26'28" West; Thence northeasterly, along said curve, through a central angle of 27°37' 18" and an arc length of 179.58 feet; Thence North 32°56' 11"East 600.12 feet to a point on the southwesterly line of Junipero Serra (State Highway 280) as shown on said parcel map; Thence along said southwesterly line of Junipero Serra Freeway (State Highway 280) South 57°02'38" East 298.28 feet to a point on the easterly line of said Lot 3, said point also being the beginning of a non-tangent curve concave to the east, having a radius of 600.00 feet, from said point a radial line bears South 68°39'51" East; Thence southerly along said curve, through a central angle of 27°32'46", and an arc length of 288.46 feet. Thence South 06°12'37" East 320.00 feet; /5 -t{z Thence South 00°28' 16" East 14.00 feet; to the beginning of a curve to right, having a radius of 25.00 feet; Thence southwesterly, along said curve, through a central angle of 90°00'00" and an arc length of 39.27 feet to the point of BEGINNING. Lot 5 contains an area of 347,174 square feet (7.97 acres) more or less. J 5-'13 K:\Sur05\056051 \LegalsILot5 .doc ò o - !' - ... ~ 6.36 GROSS AC 4.71 NET AC ý...... ..... >~~ 4<: " -t,. <c "".... 0 o· Þ ..~~ "#t/r ........ OT3 / v~ À~¢s.O ...~D R AFT '- ~~..ð I "'"""-'ð ~r...t I ~;;,. ~~ ~<f...",. ~~. '-,- 4, ') I I LOT6 I~ II ... ,~ {.'I " 7' ',-'6:§J' <J ~ " ~I~ "''' ::1 I ¡ll .~ .~ I!? ~ 1 I I I~~ Ii ..¡ ~ It, I , I· ~\ ¡> .... 1"> ¡:! I~ I "'...,. J '''.5:00' .... 4-. -..J.c?;r,b' QJ6'''"¿ REZO~ ;!!~!!.: FROM: P(MP), PLANNED INDUSTRIAL ZONE TO: P(1f....iÎ. ~LANI\lt.l.J t)!~ELe."'.I./GJT/ MUI.. J1 f:, .!.r,'L r 1\1:3JBE¡H'/AL P(RE~, COM) ; ·~?.ìc(Q. Vt-t,o..R/ NOO"28'16"~ .. ." '-<00 CÐI',,~1.aC iC..... f?-25.oo' 1:::.-9000'00· L.-J9.27' S89".JIW"W215.0.:J' I 1 .~ .... """"..,::-- ~~.~ 4"" . '.?7J"Jg.. .... t.-dJ'It,ß7. ....> .~. ................. ~.... ~.......>a -- ""'00- 4"'tJ'..? . -- -- ~BkF SCALE· l' 981 RIDDER PARK DRIVE SUITE 100 SAN JOSE, CA 95131 408-467-9100 408-467-9199 (FAX) Sub j ect CALABAZAS PLACE 15 -tN· ZONING PLAT MAP - LOT 5 Job No. 20056051 By RO Date 9/16/05 Chkd.JM SHEET 5 OF 6 --,.....;1-1...- ~Bkf August 29, 2005 BKF No. 20056051-10 Page I of2 EHGOilW, SURVE¥ðlS,' P1AIUilfjtS EXHIBIT "A" LEGAL DESCRIPTION FOR ~O~ING ~URPOSES /vef f/arod LOTS All that certain real property situate in the City of Cupertino, County of Santa Clara, State of California, described as follows: Being a portion Parcel 3, as shown on Parcel Map, filed March 26, 1978 in Book 438 of Maps at Pages 12 and 13, Records of Santa Clara County, more particularly described as follows: BEGINNING at a point on the northerly line of Vallco Parkway, being 110.00 feet in width, said point being at the easterly terminus of the course "North 89°31'44" East 215.03 feet" of the southerly line of said Parcel 3, as shown on said Parcel Map. Thence along said southerly line of said Parcel 3, South 89°31'44" West 215.03 feet to the beginning of a curve to the right having a radius 595.00 feet; Thence westerly along said curve through a central angle of 32°13'39", and an arc length of 334.67 feet; Thence North 58° 14' 37"West 170.97 feet to a point on the northwesterly line of said Parcel 3, to the beginning of a non-tangent curve, concave to the northwest, having a radius of 372.50 feet, from said point a radial line bears North 29°26'28" West; Thence northeasterly, along said curve, through a central angle of 27°37' 18" and an arc length of 179.58 feet; Thence North 32°56'11"East 325.31 feet; Thence leaving said northwesterly line, the following five (5) courses: 1) South 57°03'49" East 160.99 feet; 2) South 32°55'46" West 322.17 feet to the beginning of a non-tangent curve, concave to the north, having a radius of 515.00 feet, from which a radial line bears North 29°17'27" East; 3) Easterly, along said curve, through a central angle of 32°10'36" and an arc length of ,289.22 feet; 4) North 06°32'42" West 326.67 feet; 15-45 Page 2 of 2 5) North 83°27'54" East 165.58 feet to a point on the easterly line of said Parcel 3 and being also a point on the westerly line of Tantau A venue, as shown on said Parcel Map, said point being at the beginning of a non-tangent curve, concave to the east, having a radius of 600.00 feet, from said point a radial line bears South 83°43'27" East; Thence southerly, along said easterly line of said Parcel 3, along said curve, through a central angle of 12°29' 10" and an arc length of 130.75 feet Thence South 06°12'37" East 320.00 feet; Thence South 00°28' 16" East 14.00 feet; to the beginning of a curve to right, having a radius of 25.00 feet; Thence southwesterly, along said curve, through a central angle of 90°00'00" and an arc length of 39.27 feet to the point of BEGINNING. 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Po " " :,¡<>: E:] ~ '" ¡¡ 01) .2 .s ~B '" ." !;2 0 E::E -5 § o ._ ~ :;; Q:¡OI) - .- Õ'~ ¡.-::;: JS-73 - Õ E-< '" '" .- ~ ó '" .€ " g- U '- o Þ Û ;,; e " o {j) ENVIRONMENTAL EVALUATION (To be Completed by City Slaff) ENVIRONMENTAL FACTORS POTENTIALLY AFFECTED: The environmental factors checked below would be potentially affected by this project, involving at least one impact that is a "Potentially Significant Impact" as indicated by the checklist on the following pages. D Aesthetics D Agriculture Resources 0 Air Quality 0 Biological Resources 0 Cultural Resources D Geology /Soils . D Hazards & Hazardous 0 Hydrology / Water D Land Use / Planning Materiais Quality D Mineral Resources 0 Noise D Populalion / Housing D Public Services D Recreation 0 TransportationfT raffic 0 Utilities / Service 0 Mandatory Findings of Systems Significance DETERMINATION: On the basis of this inilial evaluation the Environmental Review Committee (ERC) finds that: D The proposed project COULD NOT have a significant effect on the environment, and a NEGATIVE DECLARATION will be prepared. 0 Although the proposed project could have a significant effect on lhe environment, there will not be a significant effect in this case because revisions in the project have been made by or agreed to by the project proponent. A MITIGATED NEGATIVE DECLARATION will be prepared. D The proposed project MAY have a significant effect on the environment, and an ENVIRONMENTAL IMPACT REPORT is required. D The proposed project MAY have a "potentially significant impact" or "potentially significant unless mitigated" impact on the environment, but at least one effect 1) has been adequately analyzed in an earlier document pursuant to applicable legal standards, and 2) has been addressed by mitigation measures based on the earlier analysis as described on attached sheets. An ENVIRONMENTAL IMPACT REPORT is required, but it must analyze only the effects that remain to be addressed. D Although the proposed project could have a significant effect on the environment, because all potentially significant effects (a) have been analyzed adequately in an earlier EIR or NEGATIVE DECLARATION pursuant to applicable standards, and (b) have been avoided or mitigated pursuant to that earlier EIR or NEGATIVE DECLARATION, including revisions or mitigation measures that are imposed upon the proposed p!ojeçt, nothing further is required. -] :"Æ .-.-- ---~ ·2 , '-"'~""~"~".':-: ,-"" \- c~ c Staff ( //'1/1 Date· /2/ J<f-/ ()')" Date -",,'- ERC IS-1Cf CITY OF CUPERTINO 10300 Torre Avenue, Cupertino, California 95014 DEPARTMENT OF COMMUNITY DEVELOPMENT REPORT FORM Application: U-2005-15, TM-2005-04, Z-2005-04, Agenda Date: January 10, 2006 EXC-2005-1S, EA-2005-07 Applicant (s): Toll Brothers Property Location: APN#s: 316-20-074, 07S, 079, OS5 - North of Stevens Creek Boulevard and South of I-2S0 between Tantau Avenue and Finch Avenue. APPLICATION SUMMARY: Toll Brothers, in conjunction with its retail shopping center development partner, Keenan-Bariteau, proposes to develop the 26 acre Hewlett Packard property located at Stevens Creek Boulevard and Finch Avenue. The proposed mixed-use development will consist of the following: . Two residential options encompassing 369 - 402 homes as follows: o Option A · 322 residential condominium units, and SO senior apartments, equaling 20% Below Market Rate (BMR) 402 total units o Option B · 314 condominium units, and · · 55 BMR units equaling 15% BMR 369 total units · Retail shopping center encompassing approximately 115,000 square foot · 3.5 acre public park · Demolition of a 150,000 square foot industrial office building considered functionally obsolete by the applicant The environmental analysis and technical reports considered both options; therefore the Commission has the ability to choose either option. The project as proposed requires the following approvals: 1. An exception to the Heart of the City Specific Plan to allow front yard setbacks of less than 35 feet to an average of 35 feet with a minimum of 26 feet. 2. Rezoning to change from P (CG,O,ML,Hotel)/P (MP) to P(Com, Res) & P (PR) 3. Use Permit - to construct six buildings totaling 115,000 square feet of retail space and up to 402 residential units. 4. Tentative Map - to subdivide four existing parcels totaling 25.5 acres into five parcels (2.45, 3.5, S.37, 3.0S, 7.97 acres). IS -80 Applications: Z-2005-04, U-2005-15, EXC-2005-18, EA-2005-07, TM-2005-04 Calabazas Place January 10, 2006 Page 2 5. Site and Architectural review will be submitted subsequent to this review once the use permit and rezoning applications have been reviewed and approved. RECOMMENDATION Staff recommends that the Planning CommissiQn review the application in two steps: 1) Policy Review: Determine if the application conforms to the General Plan, Heart of the City Plan and the direction from the City Council at the study session of January 18, 2005. The analysis should focus on: a) Number of housing units b) Retail square footage c) Residential density d) Building height and setbacks 2) Technical Issues: If the project conforms to the policy criteria contained in the above documents and the direction of the City Council then review the technical issues including: a) Parking b) Architectural Design c) Landscaping Plan The project proposes a total number of units in excess of the 300 previously directed by the City Council and exceeds the total of 400 units allocated for the South Valko area, when combined with the proposed 139-unit Valko condominium application, which is also scheduled to be reviewed by the Planning on January 10, 2006. The recently adopted General Plan allows transferring units from one area to another area, but provides no specific criteria for when transfers should be allowed. Staff suggests that transfers should be allowed when there is an identified substantial public benefit associated with the application. The Commission should consider what would constitute a substantial public benefit in the subject application. The project model resolutions will be provided at the January 10, 2006, meeting. LOCATION The project site is bounded by Stevens Creek Boulevard to the south, Tantau Avenue to the east, Interstate 280, Calabazas Creek and Valko Parkway to the north, and the Rose Bowl and Menlo Equities "Metropolitan" project to the west. Existing Project Site South Parcel North Parcel 18 acres 8 acres Vacant 150,000 sf office building South of Valko Parkway North of Valko Parkway 2 ) ~ ~g / Applications: Z-2005-04, V-2005-15, EXC-2005-18, EA-2005-07, TM-2005-04 Cala bazas Place January 10, 2006 Page 3 BACKGROUND Project Data: General Plan Designation: Office Area: Residential Units: . Residential Density: Retail Area: Building Height: Current Zoning: Proposed Zoning: Specific Plan: Project Consistency with: General Plan: Zoning: Specific Plan: Environmental Assessment: Commercial! Office/ Residential 150,000 square feet (existing) 369 - 402 units 16 to 36 du/ ac Up to 115,000 square feet 40 to 50 feet P(CG,O,ML,Hotel) & P(ML) P(Comm, Res) & P(PR) Heart of the City Yes, with the following changes: » Reduce density to 35 du/ ac. » Conform to the 1.5 to 1 slope line along Stevens Creek and Tantau. » Reduce number of units or identify transfer source. Yes, with a rezoning allowing residential uses Yes, with exception to allow an average of 35 feet front setback for commerciaL Mitigated Negative Declaration. Previous Council Direction On September 3,2002, the City Council authorized Hewlett-Packard to apply for a General Plan Amendment for 300 residential units on the vacant South Parcel. At the time, the proposed project was 734,000 sq. ft. of new office space, a 11,000 sq. ft. conference center, 387 housing units, 11,000 sq. ft. of retail space and a three acre public park (see Exhibit F). Based on lack of activity, this amendment application was closed. Toll Brothers On August 17, 2004, Toll Brothers presented a concept that included 565 units, and up to 80,000 sq. ft. of commercial to the City Council and Planning Commission at a joint study session (see Exhibit G). On January 18, 2005, the City Council heard a subsequent request by Toll Brothers, for authorization to apply for a General Plan Amendment to allow up to 460 additional residential units, 100,000 square feet of commercial area and 1.4 acres of public park area (see Exhibit H). The City Council authorized the applicant to apply for a General Plan Amendment for up to 300 residential units with the condition that the project includes at least 100,000 sq. ft. of retail space and at least a 3.5-acre park. Subsequent to 3 15 -82. Applications: Z-2005-04, U-2005-15, EXC-2005-18, EA-2005-07, TM-2005-04 Calabazas Place January 10, 2006 Page 4 this authorization, the City Council decided to change the ordinance to no longer require pre-approval prior to filling a General Plan Amendment. In addition, the Valko Park South area now has new residential allocations based on the recent General Plan update. Consequently, the applicant no long needs a General Plan Amendment and the application is outside the parameters of the prior authorization. The table below describes the Council direction to the applicant and how the current proposal compares: Previous Project Details Compared to the Current Proposal 1/18/2005 1/18/2005 Current Proposal Council Proposal Direction Units 460 300 369 - 402 Retail (Sq. ftT 90,000 100,000 115,000 Public Park 3.5 park (acres) . funding to purchase a 0.5 acre parcel in Rancho 1.4 Rinconada for a 3.5 pocket park/trail head next to the Saratoga Creek linear park Density (units per acre) 27 36 DISCUSSION Project Description The project site is approximately 25.5 acres and consists of one existing 150,000 square feet vacant office building to be demolished. The applicant contends that the office building is functionally obsolete. The Commission should review the cohesive office policy adopted in the General Plan to determine if the proposal meets all pf the conversion criteria (discussed later in the report). The project proposes the following project details: 4 /5 -88 Applications: 2-2005-04, U-2005-15, EXC-2005-18, EA-2005-07, TM-2005-04 Calabazas Place January 10, 2006 Page 5 BUILDING DENSITY RETAIL RESIDENTIAL MAX. HT. COMMENTS Units/acre Sq.ft. Units Feet Existing 150,000 Demolished as part of sf. Office this project East Terrace 4 stories- 45 Exceeds General Stacked Flat Condo - Lot 4 26 96 ft. to the top Plan's 1.5 to 1 slope of the line drawn from para pet; 50 ft. Stevens Creek Blvd. to the peak of & Tantau Ave. the hip roof West Terrace 36 99 4 stories - 45 Exceeds General Stacked Flat ft. to the top Plan's maximum 35 Condo - Lot 1 of the dujac density. parapet; 50 it. to the peak of the hip roof Villas (four 19 108 3 stories - 40 buildings) Two- ft. max. story condo stacked on a ground floor flat - Lot 5 North Terrace Senior Apt. 80 3 stories - 40 (two options) Option A - ft.max. (Lot 6) *23 Condo 48 4 stories - Option B - 50ft. to the (Lot 5) peak of the "*16 roof Retail Parcel - 112,206 Lot3 Total 112,206 Option A (Senior) - 402 units Option B (Condo) - 369 units , *23 du/ ac density of the Senior Apt. on lot 6. **16 du/ ac total density of the Villas and North Terrace Condo Option on lot 5. 5 1,-31 Applications: Z-2005-04, U-2005-15, EXC-2005-18, EA-2005-07, TM-2005-04 Calabazas Place January 10, 2006 Page 6 Rezoning The project site is currently zoned P(CG,O,ML,Hotel)/P(MP) - Planned Development (General Commercial, Office, Light Industrial, Hotel)/ (Industrial) and does not allow residential uses. The site is proposed to be rezoned to P(Com, Res) - Planned Development (Commercial and Residential) to allow the proposed commercial and residential uses. The dedicated public park area will be zoned P(PR) - Planned Development (Public Park or Recreational). The proposed rezoning is compatible with the General Plan land use designation as indicated above. Tentative Map With the Senior Option A, the applicant proposes subdividing the existing four existing parcels (totaling approximately 25.5-acre) into 5 parcels (ranging from 2.6 acres to 8.4 acres). The Condo Option B would create an additional lot (parcel 6) for the North Terrace condo building. POLICY REVIEW General Plan The General Plan designates this site for Office/Commercial/ Residential and allows the uses proposed by the project. The project is proposing up to 36 units/ acre (West Terrace - Lot 1) in excess of the maximum allowed density of 35 units/ acre. In addition, the project (East Terrace - Lot 4) exceeds the maximum 1.5 to 1 building bulk slope line along the Stevens Creek Boulevard and Tantau Avenue. In order to conform to the above General Plan criteria, the following measures should be implemented: .:. Provide more building offsets on the East Terrace building between the third and fourth floor along the Stevens Creek Blvd. and Tantau Avenue elevations in order to conform to the 1.5 to 1 slope line. Approximately 12 units will be deleted. .:. Reduce the total number of units of the Villa buildings from 108 units to 96 units (by deleting 12 units from buildings 3 and 4). This further reduces the total unit count of the project to be closer to the Council directed 300 units and at the same time provides an opportunity for additional diagonal parking stalls along the north side of Valko Parkway to address the overall parking deficiency of the project (see further explanations in the Parking Impact section of the staff report). .:. Reduce the density of the West Terrace building from 36 units/ acre to 30 units/ acre (from 96 to 80 units -16 units). This is compatible with the density proposed by the adjacent Menlo Equities project (currently in construction) and allowing land to expand the proposed 2.7-acre park to a better-functioned 3-acre public park along Stevens Creek Blvd. 6 15"-85 Applications: Z-2005-04, U-2005-15, EXC-2005-18, EA-2005-07, TM-2005-04 Calabazas Place January 10, 2006 Page 7 As mentioned previously, both options (402 Senior Option A or 369 Condo Option B) are in excess of the 300 units previously directed by the City Council. The project in conjunction with V allco' s 139-unit condominium project exceeds the total 400 units allocated for the South Valko area based on the new General Plan allocations. The General Plan has 300 undesignated units in the" other area" category. Portions of those units could be transferred to the project area if the project can demonstrate extraordinary public benefits. Staff suggests that the Commission make findings that the project is providing substantial public benefits in order to allow for the transfer of units. After the reductions for building offsets and added parking and land to expand the park area, the Toll Bros. application will still require approximately 29 market rate units or up to 62 affordable senior units above the 300 units previously agreed to by the City Council. The substantial public benefits that justify allocating units from the other residential category include the following: · Park area and improvements (3-acres dedicated & fully improved) in excess of their required 2-acre park dedication requirement. Added.5 acre park allocation to purchase land in the Rancho Rinconada area for a pocket park/ trail head next to the Saratoga Creek linear park) will constitute one of the substantial public benefits from the project and also satisfy the Council directed 3.5 acre park with funding to purchase another .5 acre of park in Rancho Rinconada area, · Contribution to the improvements of a trail connection along the east side of Calabazas Creek from Valko Parkway to 1-280, · Construction of a pedestrian path along the west side of Tantau Avenue, through the Tantau overpass to Pruneridge Ave. The proposed approximately 115,000 sq. ft. of retail area will be allocated from the commercial development allocation for the Valko Park South area (currently has about 250,000 sq. ft.). Staff believes that the project will substantially conform to the General Plan provided that all of the above mentioned changes and substantial public benefits are met. Heart Of The City Specific Plan The Heart of the City Specific Plan provides development standards and design guidelines for development on sites along most of Stevens Creek Boulevard. The following table is a comparison between the development standards and the proposed mixed use, multi-unit residential development. 7 15,80 Applications: Z-2005-04, U-2005-15, EXC-2005-18, EA-2005-07, TM-2005-04 Calabazas Place January 10, 2006 Page 8 ITEM RFQUIREDj ALLOWED PROPOSED CONFOR1\IITY: CjNC Use Office j Residentialj Retail Residentialj Retail C Density 35 duj gr. acre 16 to 36 duj gr. acre NC - will need to be reduced Setback 1.5:1 (setback:height) 1:1 to 1.1:1 NC - will need to be setback further Œ. Terrace) Height 36 ft. Maximum 40 to 50 feet. C - new General Plan 45 ft. through an Exception allows 60 ft. with retail 50' Lot>200' frontage components. This supercedes the HOC limits. Setbacks (Residential) Front 9 ft. from 26 ft. landscaped easement 6 to 67 ft. from 26 ft. C - building setbacks off (along Stevens Creek) landscaped easement (5) Finch and ValleD Pkwy. May be reduced to 9 feet. SidesjRear 20 ft. to property line and 30ft. 20 ft. to 58 ft. and between buildings 40 to 60 ft. between the C buildings Setbacks (Commercial) 35 ft. 26 ft. minimum 35 ft. Front average (Stevens Creek) NC - exception requested to provide an average 35 ft. 34 ft. minimum 35 feet setback. plus average (Finch & Vallco Parkway) Sides o ft. when adjacent property are jointly 11 ft. minimum C - Planned mixed-use may developed reduce side setbacks between on-site buildings. Open Space (Residential) Private open 60 sq. ft./ du (no dimension < 6 ft.) 80 to 160 sq. ft.jdu (no C space dimension < 6 ft.) C Public open 150 sq. ft.j du 155 to 478 sq.ft.j du space Open Space (Commercial) 2.5% of the total gross square footage 28.5% = 104,145 sq. ft. C Common = 2,805 sq. ft. open space Subsurface May not exceed 5 ft. above grade o to 4 ft. above grade C Garao:es Development 37% Floor Area Ratio 31% C , Intensity Icommercial\ *Certain guidelines of the Heart of the City are not listed above as they apply only to the Architectural and Site approval of the project. 8 /5-t7 Applications: Z-2005-04, U-2005-15, EXC-2005-18, EA-2005-07, TM-2005-04 Calabazas Place January 10, 2006 Page 9 Cohesive Office Policy Cohesive commercial centers and office parks are necessary to maintain a healthy sales tax base for the city and to retain opportunities for existing businesses to expand in response to changing business trends. Cupertino's major retail commercial centers are located at Valko Fashion Park, The Marketplace and Portal Plaza centers, Cupertino Village, the Oaks and the Crossroads Commercial District; the office parks are located at Valko (North of Highway 280), North De Anza Boulevard and Bubb Road. Projects with residential or quasi-public components to replace some or all of the existing industrial, office and commercial uses on a site in these areas will be evaluated on a case by case basis to determine if they are complementary to the overall business park or shopping center, or otherwise meet the office conversion findings. As mentioned previously, the project proposes the demolition of an approximately 150,000 sq. ft. of industrial office building on the north parcel and replace it with condominiums. In order to replace the existing 150,000 square foot office building on the north parcel, the following criteria must be met: 1) Integrate into the existing land use pattern by: · Continuing established land use patterns (e.g. commercial next to commercial or residential adjacent to residential) · Continuing patterns of building massing, setbacks and height · Establishing logical development patterns bounded by visible natural or man- made features such as a public or private road, creek, freeways etc. Response: The proposed project is integrated into the existing land use pattern. The project is adjacent to the Metropolitan and the approved Rosebowl residential mixed-use projects. All buildings proposed conform to the General Plan's height limit and are consistent with the height of adjacent buildings. The project respects the existing street rights-of-way throughout the project, maintaining the existing public streets and signalized intersections. Both Valko Parkway and Finch Avenue are proposed to be narrowed and through lane reduced to calm traffic, allow pedestrian oriented site design, active retail and public parking for the park and the commercial center. 2. Provide visible pedestrian/bicycle connections to and from existing uses. Response: The project streets are designed to slow traffic and facilitate walking and bike movements. The project proposes to maintain the existing Valko Parkway bike lane providing easy access to the existing Valko mall and the Wolfe Road arterial. Textured pedestrian crosswalks are required on Valko Parkway at the new intersections west of Tantau Avenue. The sidewalks along Valko Parkway and North side of Stevens Creek will be enhanced. Pedestrian crossing across Stevens Creek Blvd. will be enhanced and improved for safety and to encourage walking 9 I 5 ~8g Applications: 2-2005-04, V-2005-15, EXC-2005-18, EA-2005-07, TM-2005-04 Calabazas Place January 10, 2006 Page 10 to the public park and shopping center. A new sidewalk is proposed along the west side of Tantau Avenue between Valko Parkway and Pruneridge including a raised sidewalk along the existing bridge over 1-280 to allow safe pedestrian passage from the proposed project to the Office and Research parks in Valko North area. 3. Provide a visible and publicly accessible park/ plaza or open space area. Response: Total public park area of 3.5 acres is being dedicated to the City for use by the Parks and Recreation Department in creating both passive and active recreational opportunities. The shopping center proposes many public areas with seating, street furniture, outside dining, and features a public plaza with a fountain and relocated trees at the northwest corner near Valko Pkwy. 4. Orient active building spaces to the public or private rights of way. Response: A number of the store spaces feature front and back storefronts focused on the ample common areas created in front of each entrance, thus permitting customer entrances from either side. This allows for active retail and pedestrian activities along both public and private rights of ways. The major anchor tenants (e.g., grocery store and drug store) will be oriented to the public sidewalk and plazas of the Auto Court. 5. Provide superior building design with high quality natural materials and building architecture. Response: The buildings are designed by architects Kenneth Rodrigues & Partners and Van Tilburg, Banvard, and Soderbergh, with landscape design for the entire project by The Guzzardo Partnership. The conceptual architectural designs contained in the rezoning application are representational, attesting to the outstanding quality that will be brought to the entire project. Specific storefront design detail and façade finishes will be prepared in larger scale and detail and submitted for City approval after the rezoning approval is granted. 6. Demonstrate there are sufficient existing or supplemental local revenues to support municipal and school services needed to serve the development. Response: Economic & Planning Systems, Inc. has prepared an independent Financial Impact Analysis. Please refer to the full Fiscal Impact Report for detailed information (Exhibit E). Director of Administrative Services, Carol Atwood, reviewed the fiscal analysis and concludes the following: 10 /5-8"1 Applications: Z-2005-04, U-2005-15, EXC-2005-18, EA-2005-07, TM-2005-04 Calabazas Place January 10, 2006 Page 11 A. The assumptions used in the fiscal model are reasonable with the exception of the expected capture ratio for retail purchases from the new condominiums due to the following: . >- Cupertino's expected capture of retail sales from new residential is significantly less than comparable jurisdictions because of the high ratio (approximately 49%) of business to business sales tax generated in community. » Cupertino does not have significant "big ticket" sales merchants such as appliance stores or automobile sales. B. The project will principally benefit from the on-street parking and the adjacent park improvements. The requirement that the applicant create a Landscaping and Lighting District (LLD) to maintain the public street frontages and the park area will sufficiently offset the sales tax capture ratio. The project should still result in a net surplus of revenues over costs if the maintenance costs are borne by the future property owners through an LLD. The LLD will be added to the conditions of approval of the project. 7. Show that the building is functionally obsolete in a market sense and cannot be reasonably redeveloped or marketed into a compatible use within the surrounding area, or show the existing building/ use is no longer complementary to the larger commercial center or office park. Response: Please refer to the letter from Hewlett-Packard Company dated January 6, 2005 (Exhibit I) in reference to the building's occupancy, functionality and marketability. 8. Show that the development can reasonably stand alone as a self-sufficient land use that is otherwise complementary to existing buildings and uses. Response: The proposed mixed-use and pedestrian-oriented master plan community can stand alone as a self-sufficient land use. The proposed full service shopping center and residential condominiums will be able support each other. If approved, this project will create a community unlike any other in Cupertino with public and private open space, neighborhood-shopping opportunities, and a variety of homes in different sizes and price ranges. Each of the uses proposed complements an existing land use, and the proposal provides a much-needed large public park at the east end of Cupertino. 11 15-9D Applications: Z-2005-04, U-2005-15, EXC-2005-18, EA-2005-07, TM-2005-04 Calabazas Place January 10, 2006 Page 12 9. Show that the residential or quasi-public use provides an incentive to incorporate a significant component of commercial or offices uses on the site. Response: Toll Brothers' proposal replaces the existing obsolete office building close to a one- to-one basis with retail commercial space. Calabazas Place is a master plan that contains approximately 115,000 sq. ft. of retail space as well as approximately 369 to 402 new homes. The retail center will offer leasing opportunities for general retail stores and restaurants and retail-oriented office users such as dental and medical services, real estate and insurance agencies, and financial providers. The project will also provide an opportunity for Cupertino residents a Community Meeting Room designed into the shopping center plan facing onto a portion of the proposed new public park. TECHNICAL ISSUES Setback Exception Section 1.01.030 B 1 of the Heart of the City Plan requires frontage setbacks (along Stevens Creek) to be no less than 35 feet from the curb. The commercial project requires an exception to have an average 35-foot (ranging from 26 feet minimum to 57 feet maximum) frontage setback along Stevens Creek Blvd. The General Plan encourages active retail developments to be pedestrian oriented and have a strong street presence in the Valko Park South area. This is achieved by having the buildings closer to the street, providing essential pedestrian amenities (i.e., canopies, furniture, special paving materials, lighting and other features to enhance pedestrian activity) and essential landscaping improvements along the street. The proposed average 35-foot front setback is similar to the setback of the Panera Bread/Peet's Coffee building along Stevens Creek Blvd. The proposed perimeter commercial buildings (C D, E, F) in the commercial center are all designed to be double loading, with access both from frontage streets and from the interior parking lot. The detailed landscaping and site plan will be submitted for review at the Architectural and Site approval stage to ensure that all of the above mentioned pedestrian amenities are provided. Design Site Plan The existing office building is located on the north parcel, north of the Valko Parkway. The proposed project consists of six commercial buildings and seven residential ' buildings. The commercial buildings are located on lot 3 in the middle of the project bounded by Finch Avenue to the west, Vista Drive (a new private access drive) to the east, Valko Parkway to the north and Stevens Creek Boulevard to the South. The main entrance driveway to the center will be from Stevens Creek Blvd. with auxiliary access 12 /5-CJ/ Applications: Z-2005-04, V-2005-15, EXC-2005-18, EA-2005-07, TM-2005-04 Calabazas Place January 10, 2006 Page 13 from Finch Avenue and Valko Parkway. The entry driveway is enhanced with pavers and double rows of trees on either side of the drive. The commercial center has frontages on four streets with double loading shops that open onto the streets and onto the interior pedestrian and courtyard areas. The center's location to the residential buildings allows for a true mixed-use concept for residents from adjacent units to be able to walk to shops or dine at the restaurants and then walk to the park with out getting in a car. Pedestrian pathways within the center and links to the residential buildings will provide easy pedestrian and bicycle access. The proposed public plazas and outdoor dining areas will also create activity nodes and meeting spots for the residents of the area. The new residential neighborhood will consist of attached multi-family condominiums on 3 lots (lots 1, 4 & 5). Lot 1, (West Terrace) - a 96 unit condo podium project is located at the southwest corner of Finch Avenue and Valko Parkway. It is bounded by the proposed 3.5 acre park to the south and north and the main access will be from Valko Parkway. Lot 4, (East Terrace) - a 118 unit condo podium project is located at the northwest of Tantau Avenue and Stevens Creek Blvd. with a private access drive (Vista Drive) from both Stevens Creek Blvd. and Valko Parkway. Lot 5 (North Terrace/Villas) -156 condo units in five podium buildings are located north of Valko Parkway bounded by Tantau Avenue to the east, Calabazas Creek to the west and 1-280 to the north. Architecture Only conceptual elevations were submitted for review as part of this approval since the applicant will apply for Architectural and Site approval (ASA) after the zoning and the use permit are approved by the City. Staff and the City Architect have identified the following issues relating to architecture that will be addressed at the ASA approval stage: General .:. High quality materials and exceptional architectural detailing shall be used throughout the project. .:. Architectural style and materials between the residential and commercial must relate and be compatible. Commercial .:. Use warmer materials and colors on the commercial shopping center .:. More interior parking lots shading trees should be provided in the parking court and along the shops. .:. Detail design guidelines shall be developed to ensure that future tenanJs will adhere. .:. Provide a stronger distinct architectural expression for the retail center. .:. The tenant space at the terminus of the entry drive must provide a stronger architectural feature since it is a focal point of the center. 13 I 5-9 z. Applications: Z-2005-04, U-2005-15, EXC-2005-18, EA-2005-07, TM-2005-04 Calabazas Place January 10, 2006 Page 14 .:. Develop stronger pedestrian amenities (i.e., canopies, trellises, outdoor seating areas, plazas, special paving materials, seats, lights and fountains). .:. Stronger screen buffers (landscaping & screen walls) should be considered to help screen the loading areas of the shopping center along Valko Parkway. Residential .:. East Terrace should have a functional and architectural entrance along the Stevens Creek Blvd. frontage. The entry feature shall also serve as a significant building break in the long façade. .:. Stronger projecting elevations along major streets (Stevens Creek & Tantau) .:. Eliminate the hip roof element in favor of a stronger modern design expression. .:. Add metal cornices and wall cap elements that relate to the retail center. .:. Provide higher quality and better delineated pedestrian scale entries from the street. .:. Consider corner bakonies to improve the visual transition at the building corners. .:. There needs to be a cohesive architectural concept that all of the residential complexes draw from. TRAFFIC IMPACT ANALYSIS The site has good vehicular access with driveways on Valko Parkway, Stevens Creek Boulevard and Finch Avenue. One full-access driveway will be provided on Valko Parkway to the north residential buildings. A right-turn in and out driveway will provide access to the west residential units located north and west of the public Park. A driveway to the east residential units will be provided on a new internal road between Stevens Creek Boulevard and Valko Parkway. Access to the retail uses will be provided by two right-turn only driveways on Stevens Creek Boulevard and one driveway on Finch Avenue. These driveways provide adequate capacity for vehicles to enter and exit the project site. Access to the western residential units is provided by a right-turn only driveway on Valko Parkway. Westbound drivers on Valko Parkway will be required to make a U-turn at Perimeter Road to enter these units. A traffic report was prepared by Fehr & Peers Associates, Inc. on December 2005. With demolition of the existing 150,300 square feet of office space, the proposed 120,000 square feet of retail and 369 residential units is estimated to generate a net increase of 5,676 daily trips, a net increase of 12 AM peak hour trips (133 fewer inbound/145 added outbound) and a net increase of 447 PM peak-hour trips (327 added inbound/120 added outbound). Intersection impacts were evaluated at twenty-one key interseétions with level of service cakulations during the weekday morning (AM) and evening (PM) peak periods for Existing, Background, Project, and Cumulative Conditions. The results of the analysis showed that the proposed project would not have a significant impact on any of the study intersections through Project Conditions. The proposed 14 /5-q3 Applications: Z-2005-04, U-2005-15, EXC-2005-18, EA-2005-07, TM-2005-04 Calabazas Place January 10, 2006 Page 15 project would have a less-than-significant impact to the freeway segments. Under Cumulative plus Project Conditions, the Valko Parkway and Wolfe Road intersection would operate unacceptably and the project would have a significant cumulative impact. As a mitigation measure, the project will be required to re-stripe the westbound through lane on Valko Parkway to a shared through/right lane. This will allow the intersection to cumulatively operate at an acceptable level of service. A traffic simulation model using SimTraffic software shows there is good progression along Wolfe Road and Stevens Creek Boulevard with the exception of the eastbound left-turns on Stevens Creek Boulevard at Wolfe Road. However, the elimination of a through lane and installation of parallel on-street parking is not recommended unless it is part of a larger project to reduce through capacity or provide parking on a longer segment of Stevens Creek Boulevard. The number and spacing of the driveways is sufficient to accommodate the projected traffic volumes generated by the proposed development. The on-site circulation is considered acceptable. Fehr and Peers also projected the trip generation for the 3.5-acre public park. The park is expected to have similar uses as the Library Field on Torre Avenue. The park is estimated to generate 50 PM peak trips. These trips represent 7 percent of the total project trips and will not have a significant impact (See table below). TABLE 1 TRIP GENERATION ESTIMATES - PM PEAK HOUR Use Players In Out Total Soccer" 30' 25 25 50 Volleyball3 16 16 0 16 Notes; 1 Assumes two back to back soccer practices with 15 kids at each practice. 2 Assumes two-thirds of the ptayers are dropped off by parents. 3 Assumes each volleyball player drives their own car to practice. The recommendations of Fehr and Peers wili be included in the condition of approval along with the final recommendation of the City Council. PARKING ANAYLSIS As shown in Table 9 below, the City of Cupertino's Municipal Code requires 1,271 parking spaces including 533 retail and restaurant and 738 residential parking spaces. The City's Municipal Code requires 2 (1 covered and 1 uncovered) spaces for every condominium unit. 15 15-91 Applications: Z-2005-04, V-2005-15, EXC-2005-18, EA-2005-07, TM-2005-04 Cala bazas Place January 10, 2006 Page 16 TABLE 9 PROJECT PARKING REQUIREMENTS AND SUPPLY City Code Requirements Use Rate Spaces Parking Provided1 Retail (B7 ksl) 1 per 250 sJ. 348 Restaurant with bar (150 seats 1 per 3 seats 50 & 20 employees) 1 per employee 20 Reslaurant wilhou1 bar (100 1 per 4 seals 25 405 seats & 10 employees) 1 per employee 10 Specialty Food (10 ksf wi no 1 per 250 s.f. or 40 seats & 9 ksf w/120 seats) 1 per 3 seats 40 North Townhomes (lOB d.u.) 216 305 North Condos (48 d.u.) 2.0 per d.u. 96 100 West Condos (95 d.u.) 190 196 East Condos (lIB d.u.) . 236 255 Tota --- 1,271 1,261 Notes: 1 The on-street parking on Valleo Parkway (47 spaces) and Finch Avenue (68 spaces) can be used by guests, residents, retail customers, and public park users. However, the on-street parking Îs nol included in the proposed on-site parking sum. Source: City of Cupertino. City of Cupertino Municipal Code: Chapter 19. 100 PaIking Regulations. 2005. The parking requirement for the retail use depends on the final size and land use of buildings in the shopping center. The project applicant has indicated that there will be two restaurants, one with a bar and one without and 19,000 square feet of specialty retail. The remaining 87,000 square feet would be general retail. The proposed project will provide 1,261 on-site parking spaces including 405 retail (all surface), 856 residential (752 underground and 104 surface) parking spaces. The project will provide sufficient parking for the residential uses. However, the retail and restaurant parking supply (405 spaces) does not meet City parking requirements (533 spaces). The project will provide 68 angled parking spaces on both sides of Finch Avenue. One travel lane on Valko Parkway will be replaced with 47 angled and parallel parking spaces along the project's frontage. The parking analysis did not consider anyon-street parking on Stevens Creek Blvd. Assuming all of the on-street parking on Finch Avenue and Valko Parkway (115 spaces) were for the retail uses, the project would still provide 13 fewer spaces than required. In addition, it is likely that the on-street spaces will be used by guests, residents, and public park users. The proposed 3.5-acre park is expected to have similar uses as the Library Field on Torre Avenue. These uses include but are not limited to soccer, cricket, and volleyball league play. The different sports are scheduled so their games and practices do not overlap. According to the Park and Recreation Department, the practices typically occur on weekdays between 3:00pm and 7:00pm. Games are held on Saturdays between 8:00 am and 7:00 pm. The following table summarizes the parking demand estimated for the public park on a weekend game day using similar scheduling information as the Library Field. 16 15-95 Applications: Z-2005-04, U-2005-15, EXC-2005-18, EA-2005-07, TM-2005-04 Cala bazas Place January 10, 2006 Page 17 TABLE 2 PARK PARKING DEMAND ON WEEKEND DAYS Parking Use Players Coaches Referees Spectators Demand Soccer 30 3 2 24 45' Volleyball 32 4 2 8 38 Assumptions: 1 Assumes two back to back soccer games. One soccer game would have a parking demand at 30 spaces. 2 Auto occupancy 01 2.0 persons per vehicle for soccer and 1.2 persons per vehicle for volleyball. 3 2.0 spectators per player for soccer and 2 spectators per team for volleyball. As shown in Table 2, back-to-back soccer games would generate the highest demand of 45 spaces on a weekend day. Factoring in the park parking demand, the project would provide 58 fewer spaces (13 + 45) than required. As mentioned previous in the report, staff recommends that the project reduce approximately 40 residential units and approximately 31 additional diagonal parking stalls could be potentially added along the north of Valko Parkway. The parallel stalls south of Valko Parkway along the East Terrace project frontage should be revised to diagonal stalls in order to be symmetrical with the new diagonal stalls on the north side. Additional mitigation measures to reduce the parking impact and potentially balance the parking deficiency should also include one or more of the following items: .:. Provide valet parking either on-site or at an off-site location, .:. Provide off-site employee parking with a shuttle, .:. Enter into a shared-use agreement with HP to use their parking lot during the evenings and weekends, .:. Add on-street parking along the north side of Valko Parkway, and .:. Reduce the size of the retail or restaurant uses, .:. Development a parking monitoring program where 70 to 80 percent of the retail uses and one restaurant could open with a parking monitoring program that would survey the actual parking demand. If there is adequate parking available, then the rest of the center could be developed. Bike Parking The site plan does not indicate bicycle parking facilities. The project is required to provide 148 Class I bicycle parking spaces for residents (0.4 Class I bicycle spaces per dwelling unit), and 24 Class II bicycle parking spaces for retail customers (0.05 Clç¡ss II bicycle spaces per auto retail space). To accommodate demand and encourage non-motorized transportation use, bicycle parking should be conveniently located near on-site bicycle and pedestrian routes. Class 17 15-9(P Applications: Z-2005-04, U-2005-15, EXC-2005-18, EA-2005-07, TM-2005-04 Calabazas Place January 10, 2006 Page 18 I facilities are long-term parking spaces that protect the entire bicycle and accessories from theft. These long-term facilities include bicycle lockers, restricted access rooms, and constantly monitored enclosed cages. Class II facilities are short-term parking spaces within constant view of adjacent buildings or located at street floor level. The Class II facilities consist of a stationary object that users can secure the frame and both wheels with either U-shaped locks or padlocks. Pedestrian Paths As a substantial public benefit of the project, it is recommended that sidewalks be provided along the west side of Tantau Avenue between Valko Parkway and Pruneridge Avenue including a raised sidewalk along the existing bridge over 1-280. Currently, sidewalks exist only on the east side of Tantau Avenue. Textured pedestrian crosswalks are recommended on Valko Parkway at the new intersection west of Tantau Avenue. In addition, pedestrian countdown heads are recommended at the Stevens Creek Boulevard intersections with Finch and Tantau Avenues. Modifications and enhancements to the bicycle lanes on Valko Parkway are also recommended. With these changes, the project is estimated to have a less-than significant impact to the pedestrian and bicycle facilities. Also, as a project amenity, the applicant has agreed to provide a trail along Calabazas Creek from Valko Parkway to 1-280 and connecting to the pedestrian path systems of the North Terrace eventually leading to the new sidewalk along the west side of Tantau Avenue. School Impacts A fiscal and enrollment impact analysis was completed by Townhall Services in November 2005 (Exhibit D). The proposed housing type, sale price, location of development, and socio-economics are factors in determining student generation. The primary difference between the two proposed project options is that Senior Option A proposes a total of 402 residential units, including 80 senior rental apartments, and Condo Option B proposes a total of 369 residential units, which do not include senior units. Though Senior Option A proposes more residential units than Condo Option B, Condo Option B would generate more students because it does not propose senior units. For this reason, the school impacts discussion below analyzes the school impacts based upon the worst-case scenario: Condo Option B. It was estimated that a total of 143 new students could be generated by implementation of Condo Option B. Of the 143 students, 75 would attend Eisenhower Elementary School, 30 would attend Hyde Middle School, and 38 would attend Cupertino High School. As discussed above, these schools have reached their capacities but improvements, boundary changes, and residency verification would create more capacity. The enrollment impacts analyzed assume that project impacts would occur within three to 10 years of project completion. Factors that influence student generation in the Cupertino Union Elementary School District (CUSD) and Fremont Union High School District (FUHSD) may change over that time period. In particular, changes in . demographics can impact enrollment capacity within the two districts. For example, in 18 /5-11 Applications: Z-2005-04, U-2005-15, EXC-2005-18, EA-2005-07, TM-2005-04 Cala bazas Place January 10, 2006 Page 19 approximately four years, the baby boom echo generation will graduate from high school, which will cause a reduction in emollment and create more capacity. Changes in policies within the districts can also affect emollment into the future. Summary of the significant findings identified in the school report: · A capacity deficit would exist at Hyde Middle (133 students), and at Eisenhower Elementary and Cupertino High emollment is approximately at capacity. CUSD has completed or has planned near-term modernizations, renovations, and boundary adjustments that will result in adequate capacity for the Eisenhower and Hyde students. For FUHSD, the District as a whole is overcrowded and is operating at a student per class ratio that is educationally undesirable, and the Cupertino campus likely had a historical students per class ratio far less than the current student per classroom ratio of 32:1. · Facilities costs per student are anticipated to exceed facilities fee revenue per student at CUSD (-$1,955 per student) and FUHSD (-$10,815 per student), or a total facilities cost deficit of (-$205,275) for CUSD and (-$410,970) for FUHSD. · Operational costs are anticipated to exceed operational revenue at the impacted CUSD schools (Eisenhower and Hyde) by -$539. At the impacted FUHSD school (Cupertino High) there will be a net benefit of $7,837 per student using current assessed values, and under higher assessed valuations the impact becomes $10,043 per FUHSD student if real estate market conditions continue to escalate as the proposed project nears completion. Total operational costs are projected to be a deficit of -$56,595 for Eisenhower and Hyde combined, and a surplus of $297,812 (current assessed values), and $381;637 (higher assessed values) for Cupertino High if real estate conditions continue to escalate. State law (Government Code Section 65996) specifies an acceptable method of offsetting a project's effect on the adequacy of school facilities as the payment of a school impact fee prior to the issuance of a building permit. Both school districts are eligible to levy Level 1 development impact fees on new residential and commercial/industrial development. The maximum Level 1 residential fee that Cupertino Union Elementary School District and Fremont High School District are allowed to levy is $2.24 per square feet of residential development. Both districts are eligible to levy development impact fees on the proposed commercial development, which is a maximum of $0.36 per square foot of development. The project proposes to pay the school impact fees to reduce impacts to local schools. Both school districts have reviewed the school report and their formal responses are attached at Exhibit C. 19 15-98 Applications: Z-2005-04, U-2005-15, EXC-2005-18, EA-2005-07, TM-2005-04 Calabazas Place January 10, 2006 Page 20 Noise Noise sources affecting the project site and surrounding area include vehicular traffiC on 1-280, Stevens Creek Boulevard, Tantau Avenue, and Valko Parkway. Illingworth & Rodkin, Inc. conducted a noise monitoring survey from September 8-9, 2005 to quantify the existing noise environment at representative locations in the area. Noise measurements were taken at three locations: 1) approximately 110 feet from the center of Stevens Creek Boulevard, 2) along Valko Parkway, approximately 325 feet from the 1-280 right-of-way, and 3) approximately 135 feet from the 1-280 right-of-way (refer to Figure 19). Averaged noise levels at the site ranged from 60 to 74 dBA LeIn· The northern portion of the site, closest to 1-280, is exposed to significantly higher noise levels compared to the rest of the project site. Nearby sensitive receptors in the project vicinity include residential uses south of the project site and Stevens Creek Boulevard. Residential and Park Uses The normally acceptable noise level for multi-family residential units is up to 65 dB LeIn· Based on the existing noise measurements and the projected increase in traffic noise resulting from the proposed project, the proposed residential units could be exposed to noise levels of up to 74 dBA LeIn. Noise levels at the upper floors of the proposed residential units, due to greater exposure to noise from the freeway, could reach an LeIn of 81 dBA, which is classified as a "clearly unacceptable" noise level. The proposed residential uses, therefore, could be exposed to noise levels above the City's normally acceptable noise level for multi-family residential environments. Under Condo Option ß, the noise levels at all of the proposed courtyards are projected to be 65 dB LeIn or less, which would be consistent with the City's normally acceptable noise level for outdoor residential areas. Due to the orientation of the condominium building proposed furthest to the north on the north parcel, noise emanating from 1-280 would be shielded from the courtyard located in the northern portion of the project site. The noise levels at the proposed private park will be 65 dB or less, which would be consistent with the City's normally acceptable noise level for outdoor use areas. Commercial Uses The normally acceptable noise level for commercial centers can be up to 70 dB LeIn· Based on existing noise levels and the projected increase in traffic noise resulting from the proposed project, the noise levels at the proposed commercial uses located on the southern portion of the project site, south of Valko Parkway, will be up to 67 dBA LeIn· The proposed commercial uses, therefore, would be within the City's normally acceptable noise levels for commercial centers. Noise Impacts from the Project The City of Cupertino's Noise Ordinance restricts noise generated by non- transportation sources to a maximum level of 60 dBA during the daytime and 50 dBA 20 Is-<{q Applications: Z-2005-04, U-2005-15, EXC-2005-18, EA-2005-07, TM-2005-04 Calabazas Place January 10, 2006 Page 21 during the nighttime at residential property lines.. Operation of the proposed commercial uses on the site, including truck movements, loading/unloading deliveries, and mechanical equipment (including air conditioning and/ or refrigeration units), could exceed 60 dBA during the daytime and/ or 50 dBA during the nighttime at the proposed, nearby residences. These impacts will be reduced to a less than significant level with the following mitigation measures: · Locate and shield loading docks in a way to minimize their noise impacts. · Acoustically treat rooftop mounted mechanical equipment appropriately. · Limit hours of deliveries, Monday through Sunday, from 7 AM to 7 PM. Constnlction-Related Noise Impacts The City's Noise Ordinance requires that noise levels at adjacent properties not exceed 80 dBA during construction. The project could result in a substantial temporary increase in noise levels of up to 85 dBA in the project area during construction. The Construction noise impacts will be reduced to a less than significant level with the following mitigation measures: · Limit demolition and construction activities to non-holiday, daytime hours between 7:00 AM and 5:00 PM. · Construct noise barriers to shield adjacent sensitive uses from proximate construction activities on the site. · Utilize" quiet" models of air compressors and other stationary noise sources where technology exists. · Equip all internal combustion engine-driven equipment with mufflers that are in good condition and appropriate for the equipment. · Locate all stationary noise-generating equipment, such as air compressors and portable power generators, as far away as possible from businesses, residences, or other noise-sensitive land uses. · Prohibit all unnecessary idling of internal combustion engines. · Notify all adjacent businesses, residences, and other noise-sensitive land uses of the construction schedule in writing. · Designate a disturbance coordinator, responsible for responding to complaints about construction noise. The name and telephone number of the disturbance coordinator shall be posted at the construction site and made available to businesses, residents, and other land uses adjacent to the project site. · Submit a Construction Management Plan to the Director of Public Works for review and approval prior to issuance of building permits. The Plan must identify a construction schedule, street cleaning schedule, staging area, truck routes, construction signs, and construction employee parking. The noise consultant's recommendations have been added to the conditions of approval for the project. 21 15-IDO Applications: Z-2005-04, U-2005-15, EXC-2005-18, EA-2005-07, TM-2005-04 Calabazas Place January 10, 2006 Page 22 Affordable Housing 15% (55 units) of the Condo Option B (369 units) will be BMR units dispersed throughout the project. The Senior Option A, will include 20% BMR in form of 80 low-income senior units all located in one building at the northeast corner of the project site. The Housing Commission reviewed the project on August 11 & October 13, 2005. The Housing Commission recommends approval of the project only if the project can meet the following requirements: · The Cupertino Below Market Rate (BMR) Manual, 15% of the project shall be BMR units and the BMR units must be comparable in size to the market rate units. · The BMR units shall be dispersed throughout the market rate development and not be concentrated in one area. · The developer shall provide a mix of housing types, including one-bedroom units that can accommodate seniors. Small family housing is a priority in the City of Cupertino's Consolidated Plan and units should be accommodated on site to serve these families. With the exception of the one-bedroom units, which shall not exceed 50% of the BMR units, the BMR units shall reflect the square footage and design of the market rate units The Senior Option A would not be consistent with these requirements. Even though the Senior Option A offers 20% BMR in from of 80 senior apartment units. The total combined square footage of the senior units falls short of 15% of the total square footage of the project. In addition, the senior apartment units are concentrated in one building located at the northeast corner of the project site. Landscaping and Tree Removal A tree survey of the project site by Barrie Coate & Associates (2005) assessed trees that were six-inches in diameter or larger. A total of 317 trees were reported on the project site. A complete table of the surveyed trees, including their species, diameter, and health, is included in arborist report attached (Exhibit A). In addition, there are nine landscape trees located in the median on Finch Avenue. The most common species on the site include shamel ash and coast redwood. The vast majority of the trees on-site are in excellent to fair health; 22 trees are in poor health or dead. Of the trees located on-site, eight are considered Specimen Trees (tree numbers 126, 212, 213,214,215,251, 252, and 253. The size, estimated height, and condition of each Specimen Tree is listed in Table 7 below. Specimen Tree number 126, a valley oak, is dead. All other Specimen Trees are coast live oak trees and are all generally in excellent health. The coast live oak trees are located along the western boundary of the project site near Calabazas Creek. The Specimen oak trees range from 12 to 16 inches in ' diameter and are between 20 and 30 feet in height. There are no heritage trees on the site. 22 15 -{ ó I Applications: Z-2005-04, V-2005-15, EXC-2005-18, EA-2005-07, TM-2005-04 Cala bazas Place January 10, 2006 Page 23 Table 7 Summary of Specimen Trees On-Site Diameter Tree Common in inrhes Approx. Scientific Name (4.5 feet Height Health! , :\"ame Stl'urture " above (in feet) grade) 126 Valley oak Quercus lobata 57 50 Dead Dead 212 Coast live oak Quercus a.f?:rifolia 16 . 35 1 I 213 Coast live oak Quercus Œ!l1folia 12 20 2 I 214 Coast live oak Quercus a.f?:rifolia 15 25 1 I 215 Coast live oak Quercus af!/1folia 15 25 1 I 251 Coast live oak Quercus CIf!rifolia 16 20 2 I 252 Coast live oak Quercus a.f?:/1folia 16 30 1 2 253 Coast live oak Quercus a<>rifolia 12 30 2 2 }lotes: Locations of trees are sI10)1'11 in Figure J 6. 1 Health; i=Excellent, 5=Extremely Paor J Structure: 1 =Excelll!nt, 5 =Extremely Poor The project proposes to remove 149 non-specimen trees in the building and improvement areas. The City Arborist recommends that an additional 12 non-specimen trees be replaced due to their poor health and 12 trees be transplanted. The City Arborist also identified 21 non-specimen trees that potentially may need to be removed due to root damage from the improvements and construction. Prior to the issuance of building permits, the City Arborist shall review the final construction documents and provide additional recommendations on tree protection and replacement. The recommendations of the arborist will be included in the condition of approval along with the final recommendation of the City Council. Sanitary Sewer Sanitary sewer service is available to the site via existing sewer system in an existing sewer easement as well as an existing sewer system in Tantau A venue. Due to the potential complexity of the project, the Cupertino Sanitary District cannot determine the downstream availability of service for site support. A flow study may be necessary to determine the impact of the proposed improvements on the existing sanitary sewer system and whether if off site improvements are necessary. Improvement plans for the project will be reviewed by the Sanitary District prior to issuance of building permits. Neighborhood Outreach Toll Brothers held two neighborhood meetings, one on September 21, 2005 at the HP campus and the second meeting on November 14· 2005 at Cupertino High School. The concerns and comments raised at the meeting are summarized as follow: . School Impacts. 23 /5 -1c>2 Applications: Z-2005-04, U-2005-15, EXC-2005-18, EA-2005-07, TM-2005-04 Calabazas Place January 10, 2006 Page 24 · Traffic Impacts. Cut through traffic to adjacent neighborhoods. · Competition against Valko Shopping Center and Rose Bowl Development · Lack of communication and coordination with the Valko developers with regards to h01N the two projects will co-exist. Might create negative competition. · Tree preservation. · Lack of architectural interest. Commercial project not matching the architect sty Ie of the residential projects. · The desire for more shading trees in the commercial parking lot. Not palm trees. · Pedestrian crossing enhancements. · The design of the rear of the shopping center. Submitted by: Gary Chao, Associate Planner Approved by: Steve Piasecki, Director of Community Development -SIß, ·e_ ENCLOSURES Model Resolutions will be available at the meeting Initial Study - already provided to the Commission on Recommendation of the Environmental Review Committee Zoning Plat Maps Plan set Exhibit A: Arborist reports from Barrie D. Coates and Associates dated July 21, 2005 and October 30, 2005. Exhibit B: Traffic Impact Analysis prepared by Fehr and Peers dated December 2005. Exhibit C: Communication from Cupertino Union School District and Fremont Union School District dated December 6, 2005 and December 7, 2005 respectively. Exhibit D: School Impact Report prepared by School House Services dated November 2005 Exhibit E: Fiscal Impact Analysis prepared by Economic & Planning System, Inc. dated December 2005. Exhibit F: Hewlett-Packard Proposal (August 2002) Exhibit G: Toll Brothers Proposal (August 2004) Exhibit H: Toll Brothers Proposal Oanuary 2005) Exhibit 1: Communication from Hewlett-Packard Company received January 6, 2005. C£;L-<z-(' cÂ----1 tur-. G: \ Planning \ PD REPORT\ pcUsereports \ 2005ureports \ U-2005-15.doc 24 / 5 -/03 - Ÿ-'lt tCa J,_ Þ... (.......~ .....~...... .......0... ... ... ...... "41' -Z'~~OO'4 L~'.58.8.P' "'\?a" ò o - 11 ~ I ·1 ~ ¡I ~I SJf"45'2J"W a's' N58U':JTw 5.00' I 1 J 1 LOT 1 ~ / .., ~, 2.45 NET AC I'~" 2.65 GROSS AC t t~ REZONE 1 I ~ 1;' FROM: P(CG, 0, ML, HOTEL), MIXED USE 1 µ[! I::; PLANNED DEVELOPMENT <:s m ,. """"mv"""'''''' >.~_. --» " ! _ ~:J"4£"1Y ,µs.7~ _ ~ I !§ ~ ~ -..: ð a= " ... ~ ~ " &j ¡.. 21 ¡i¡ ~I LOT2 0; ~ IF ~ II'! ~ L- sa9:J6'OO"W J22.34' R=25. 00' ð.-90V8',O' L-J9.Jf' STEVENS CREEK BOULEVARD R=JO.OO· A =90TJO'oo" /.=47.12' R-.JO.OO· ð. _SOW'OO" L-47.12' / / /Ì> ~. ~ ." ,J:¡ ;¿j ~I :<1 &i "i ~ '" I I LOT3 Þ; ~I ~I ,... I'! ~ R=25. 00' ð. _270'01'54" £-117.82' S89"Jl''µ'''W SCALE l' ~ 100' /5-/6 - . 981 RIDDER PARK DRIVE SUITE 100 SAN JOSE, CA 95131 408-467 -9100 408-467-9199 (FAX) Subject CALABAZAS PLACE ZONING PLAT MAP - LOT 1 Job No. 20056051 By RO Date 12/1/05 Chkd.JM SHEET 1 OF 5 ¡j.i~BkJ ¡¡~i1,'.'!.. з~.:!i\ ~ 8 ~ E ,...._,...- ~Bkf December 1, 2005 BKF No. 20056051-10 Page 1 of I tf.I61NUASJ SjjRVEYOR~J PLl\NJl.û:1I':S EXHIBIT "A" LEGAL DESCRIPTION FOR ZONING PURPOSES LOTI All that certain real property situate in the City of Cupertino, County of Santa Clara, State of California, described as follows: Being a portion of Parcel B, as shown on Lot Line Adjustment, dated May 1998, by Kier & Wright, job #89189-23, described as follows: BEGINNING at the most northerly comer of said Parcel B, said point also being the beginning of a non tangent curve, concave to the south, having a radius of 595.00 feet, from which point a radial line bears South 03°20'52" West; Thence easterly along said curve and along the southerly line of Vallco Parkway 110.00 feet in width, as shown on Parcel Map, filed August 3, 1987 in Book 576 of maps at page 31 and 32, Records of Santa Clara County, through a central angle of 15°06'04" and an arc length of 156.82 feet; Thence leaving said southerly line of said Vallco Parkway the following four (4) courses: 1) South 00°28' 16" East 454.49 feet. 2) South 89°31'44" West 345.73 feet. 3) North 00°24'00" West 179.00 feet. 4) North 88°54'46" East 195.49 feet. Thence North 01 °05' 14" West 304.23 feet to the point of BEGINNING. Lot 1 contains an area of 106,701 square feet (2.45 acres) more or less. 15~/()5 J/. '.., "',,- "'..?~ (....)"~ --'... '~o~ N581'¡':.J7"'W 5.00' 1 1 SJ1 "45'2J"W 0./5' \' ~ I $ I~ I / / I;!! A / / I~ II III "f:? ;,,1 ;: I .., I,~ ;: / 1 ( I ~I ~ll II - Š8sCJI"4I'11' .-/T - , ~ f I i' I ~ I ~ ~ ! " I VALL CO PARKWA Y r- -R..,-~oO·4 \ "".... ò C> ~ !' ~ , I ::¡ ~ ... ~ ¡.. .. ~ 5\1 LOT1 ~ " i:1 ¡.. ~I ìi; ~I ~ ~ 1 1 LOT 2 3.50 NET AC 4.84 GROSS AC ~ ~ I.'" REZONE '" FROM: P(CG. O. ML, HOm). MIXED USE: 1 ~ PLANNED DE:VELOPME:NT ~ TO: PRo PUBLIC PARK OR RE:CRE:A nONAL :0: R=25. 00' t:J.-90'OB'/O" L-J9.J1·~ I STEVE~;~;;;;~~~LEVARlL ~ ...... ...... LOT3 ~ ~I ~I ~ ~ R=25(J()' ð..270'O/',5.¡." L-I17.82' "- - Sa9CJI·..·W J SCALE l' ; 100' ~Bkf _~Jii\I 981 RIDDER PARK DRIVE SUITE 100 SAN JOSE. CA 95131 408-467-9100 408-467-9199 (FAX) Sub 1 ect CALABAZAS PLACE I !r/6h ZONING PLAT MAP - LOT 2 . Job No. 20056051 By RO Date 12/1/05 Chkd.JM SHEET 2 OF 5 f I....IIII....'.~ L~Bkf December I. 2005 BKF No. 20056051-10 Page I of2 EHCIME:,£jtS .t·SllR~YORSI PlAH'N:ï!ts EXHmIT "A" LEGAL DESCRIPTION FOR ZONING PURPOSES LOT 2 All that certain real property situate in the City of Cupertino, County of Santa Clara, State of California, described as follows: Being a portion of Parcel B, as shown on Lot Line Adjustment, dated May 1998, by Kier & Wright. job #89189-23, described as follows: BEGINNING at the southwest corner of said Parcel B; Thence the following three (3) courses: 1) North 00024'00"West 527.77 feet 2) North 89°31'44" East 345.73 feet 3) North 00°28' 16" West 454.50 feet to a point on the northerly line of said Parcel B. said point also being the beginning of a non-tangent curve, concave to the southwest, having a radius of 595.00 feet, from said point a radial line bears South 18°26'55" West; Thence easterly along said curve through a central angle of 13°18'27" and an arc length of 138.19 feet; Thence South 58°14'37" East 5.00 feet to the beginning of a curve to the right, having a radius of 30.00 feet; Thence southerly along said curve through a central angle of 90°00'00" and an arc length of 47.12 feet to a point on the easterly line of said Parcel B; Thence North 31 °45'23" East 0.15 feet to the beginning of a curve to the left having a radius of 888.00 feet; Thence southerly along said curve through a central angle of 32°15'33" and an arc length of 499.97 feet; Thence South 00°30' 10" East 200.19 feet to the beginning of a curve to the right having a radius of 25.00 feet; IS-/01 Page 2 of 2 Thence southwesterly along said curve through a central angle of 90°06' 10" and an arc length of 39.31 feet to a point on the southerly line of said Parcel B; . Thence South 89°36'00" West 322.34 feet to the Point of BEGINNING. Lot 2 contains an area of 152,457 square feet (3.5 acres) more or less. 15 -/68 K:\Sur05\056051 \LegalslLot2.doc , . ª j , ~ 'O~þ -...; ~i f.. .- .\. .,t 1"~1/ ¡t'I-/ ,< "- ....~ ',~~,>-""~.~LOT 5 ~"':' ..o~ "- V ~.f': ~'¿>cb. ..., ; S31'45'23'"W a/5' "- I ¿. ......""- NSB74 '37"11' 5.00' " ~ ,~. .'" ~ .~,f:y / $ / / I I,~ /I"'r~ I I.! t ::¡ " I.~ I .4 I~ ;:/ .<:J I ~ / 1& I .<:J (I II I I I ~ ' ~, ~ ~ ~ ~ I I( ...... "'"" ...... ~~oo·~· 4.V2~ 7J'J,g"" . ¿. ...... ...... .:1:.""'"..>:. ~o'" .....00· ~~VO;);Þ ~ð'J" l~ .....:$".2.;0· - LOT3 ò '" ~ ~' ~ I III ~ .. 1"\ I 8.37 NET AC 10.68 œœs AC .... ~ REZONE FROM: P(CG, 0, ML, HOTEL), MIXED USE PLANNED DEVELOPMENT TO: P, RESIDENTIAL/COMMERCIAL ~ '" ~ \:; ~I ~I ~ ~ ,. '" ~ ~ R=25.00· 6.=270'01'51" £-117.82' \.... L_I-16.29' R.:r2000.õfŸó.-=tj.,.·lf '27 L.' 73.28' R-2000.00· 6.~4·57'.¡r - m".JI'+f."W ,J6.].80~ - STEVENS CREEK BOULEVARD ~~Bkf !t~; ~"'~ E. '......,_IP~ SCALE l' - 100' Sub j ect CALABAZAS PLACE 15 -/6'1 ZONING PLAT MAP LOT 3 Job No. 20056051 By RO Date 12/1/05 Chkd.JM SHEET 3 OF 5 981 RIDDER PARK DRIVE SUITE 100 SAN JOSE, CA 95131 408-467-9100 408-4-67-9199 (FAX) ~BkJ December I, 2005 BKF No. 20056051-10 Page I of 2 EN6tKËËRSlSURV£YÖRS.PLÃ~NLkS EXHIBIT "A" LEGAL DESCRIPTION FOR ZONING PURPOSES LOT3 All that certain real property situate in the City of Cupertino, County of Santa Clara, State of California, described as follows: Being all of Parcel 2, and a portion of Parcel 3, as shown on Parcel Map, filed August 3, 1987 in Book 576 of Maps at Pages 31 and 32, Records of Santa Clara County, more particularly described as follows: BEGINNING at a point on the easterly line of Finch Avenue being 76.00 feet in width, said point also being the southerly terminus of the course "South 00°30"10' East 201.07 feet" of the westerly line of said Parcel 2, as shown on said Parcel Map. Thence along said westerly line of said Parcel 2 the following four (4) courses: I) North 00°30' 10' West 201.07 feet to the beginning of a curve to the right having a radius of 812.00 feet; 2) Northeasterly along said curve through a central angle of 32°15'33", and an arc length of 457.18 feet; 3) South 31 °45'23" West 0.15 feet to the beginning of a curve to the right having a radius of 30.00 feet; 4) Northeasterly along said curve through a central angle of 90°00'00", and an arc length of 47.12 feet to a point on the southerly line of Valko Parkway being 110.00 feet in width, as shown on said Parcel Map; Thence South 58°14'37" East 362.70 feet to the beginning of a curve to the left having a radius of 705.00 feet; Thence easterly along said curve through a central angle of 20°39' 53", and an arc length of 254.27 feet; , Thence leaving said southerly line of Valko Parkway South 00°28' 16" East 366.49 feet to a point on the northerly line of Stevens Creek Boulevard, varying in width, as shown on said Parcel Map, said point also being the beginning of a non-tangent curve concave to the south, having a radius of 2000.00 feet, from said point a radial line bears South 01 °14'38" East; S-JID Page 2 of 2 Thence along said northerly line of Stevens Creek Boulevard and the southerly line of said Parcels 2 and 3 the following four (4) courses: I) Westerly along said curve through a central 04°11 '27", and an arc length of 146.29 feet to the beginning of a reverse curve having a radius of 2000.00 feet; 2) Westerly along said curve through a central angle of 04°57'49", and an arc length of 173.26 feet; 3) South 89°31'44" West 363.80 feet to the beginning of a curve to the right, having a radius of 25.00 feet; 4) Northwesterly along said curve, through a central angle of 89°58'06", and an arc length of 39.26 feet to the point of BEGINNING. Lot 3 contains an area of 364,713 square feet (8.37 acres) more or less. 15-111 K:\SurOS\OS60S1 \LegalslLot3.doc I .1 ,'~ .~1/ . tI). zþO . , \ \ \- \~ ~ ~ \~ \ \~ ¿. \~ _"'S~$ J ""Oo~ 4~<'''O'J6_ ~L::?B9£' I ....o.t,p >,.~, J>:¡.. ...... ?-"~ qg~ ~ LOTS NOO:20'fS'"W 14.00' R-25.00· l:J. -907JO'OO" l-39.27' "-b. - .f'"",,_ "'$00'':---.- 4.....,2-;:--". ::1.9*' - ""'-'J1I:q 589'31'-14" 215.OJ' ...... - ?.> ·o..,:>~ '-.....t:~..>'os ~. ~V<')'..r~ _'-'9-¿ l VALL CO PARKWA Y ¡,s:5,5' SB9:J".(..f."W 215.03' -- -- 1.'='142..27' R-25. 00' D. -90770'00" £=39.27' 1 LOT 4 1 ~ is ~ I- ~ ~ r ~ 3.08 NET AC ~ LOT3 4.51 GROSS AC It ;:) ~ ~ ~ REZONE ¡I¡ .. I~ I~ FROM: P(CG. O. ML. HOTEL), MIXED USE :t PLANNED DEVELOPMENT 1 ~ 1 TO: p. RES/DENnAL/coMMERCIAL ,,",2000.00· A _JS5VZ"'''' L-12.J9.:J.11· £-26.97' /?-50.OO· .6. =90'00'00· £-78.54' I I J - - - -S89:J1'-U"W JO.(..j7 £-70.08' -=02"00'28'" L_103.18' ð.~2·57'21 .. R-2000. 00' A-(}I.'57'.¡.g'" £-17J.26' STEVENS CREEK BOULEVARD .... ~ SCALE l' = 100' '" Sub{ect CALABAZAS PLACE /5-//2- -. Bkf 981 RIDDER PARK DRIVE SUITE 100 ZON NG PLAT MAP - LOT 4 .~ SAN JOSE, CA 95131 Job No. 20056051 408-467-9100 By RO Date 12/1 /05 Chkd. JM :a 408-467-9199 (FAX) -~ '.....-I.~ SHEET 4 OF 5 ~~ _Bk;J December I, 2005 BKF No. 20056051-10 Page lof2 EnGiNEERS I SìJRV¡VOIlSJ PlAN!NiJtS EXHIBIT "A" LEGAL DESCRIPTION FOR ZONING PURPOSES LOT 4 All that certain real property situate in the City of Cupertino, County of Santa Clara, State of California, described as follows: Being a portion of Parcel 3, as shown on Parcel Map, filed August 3, 1987 in Book 576 of Maps at Pages 31 and 32, Records of Santa Clara County; more particularly described as follows: BEGINNING at a point on the northerly line of Stevens Creek Boulevard varying in width, said point also being the easterly terminus of the course "South 89°31"44' West 304.37 feet" of the southerly line of said Parcel 3, as shown on said Parcel Map. Thence South 89°31 '44" West 304.37 feet to the beginning of a curve to the left, having a radius 2000.00 feet; Thence Westerly along said curve through a central angle of 00°46'22", and an arc length of 26.97 feet Thence Leaving said southerly line of said Parcel 3 South 00°28' 16" East 366.49 feet to a point on the southerly line of Valko Parkway 110.00 in width, as shown on said Parcel Map, said point also being the beginning of a non-tangent curve, concave to the north, having a radius of 705.00 feet, from said point a radial line bears North 11 °05'30" East; Thence easterly along said curve through a central angle of 11 °33'46", and an arc length of 142.28 feet; Thence South 89°31'44" West 215.03 feet to the beginning of a curve to the right, having a radius of 25.00 feet; Thence southerly along said curve through a central angle of 90°00'00" and an arc length of 39.27 feet to a point on the easterly line of said Parcel 3; Thence South 00°28' 16" East 277.00 feet to the beginning of a curve to the right, having a radius of 50.00 feet; IS-/(3 Thence southwesterly along said curve through a central angle of 90°00'00" and an arc length of 78.54 feet to the point of BEGINNING. Lot 4 contains an area of 134,234 square feet (3.08 acres) more or less, 15-JlLI K:\Sur05\056051 \LegalsILot4.doc I ò c:> ~ ~I ~ ~~ ~A J'...... ~~ / ............ 0 .s'~~ I ~o$"~'" I ~¡,.. ........~~ / ~<1'"ð" ~~. "', ~~ I I .... ~ LOT5 Z97 NET AC 9.90 GROSS AC I~ ,p C; F? ~ < :s <:i I~ t REZONE FROM: P(MP), PLANNED INDUSTRIAL ZONE TO: P, RESIDENnAL/COMMERCIAL , \. % ~& ~ !'> ~ ,~ , ,,-', >"':' ~< ~ <c. ~.,.-" 0 ",. A ..~~ J¡,.., )0- .............. OT3 .;-- ""fS.g;-- ·Oo·~ 4""'t7<~_ ,-,'SJ.¿ __ "'lJ'J1(67' NOO"28·'B"W 14.00' R-25. 00' â =90"(}()'OO" L-J9.27' ...... ---- SCAL£ l' = S89-.JI-:;;"W215.OJ' ...... .<Ç. ...... - - ~Os...._ ~4 Y,,?"p,- ,1. ·0 ~Bkf 981 RIDDER PARK DRIVE SUITE 100 SAN JOSE, CA 95131 408-467 -9100 408-467 -9 199 (FAX) Sub 1· ect CALABAZAS PLACE /5 -tiS ZON NG PLAT MAP - LOT 5 Job No. 20056051 By RO Date 12/1/05 Chkd.JM SHEET 5 OF 5 ,~ a ~ 11& '~L.I_"~ ~BkJ December I, 2005 BKF No. 20056051-10 Page I of 2 £Nò'....SIS"RV!¥,ORS'PLA.N~.S EXHIBIT "A" LEGAL DESCRIPTION FOR ZONING PURPOSES LOTS All that certain real property situate in the City of Cupertino, County of Santa Clara, State of California, described as follows: Being all of Parcel 3, as shown on Parcel Map, filed March 26, 1978 in Book 438 of Maps at Pages 12 and 13, Records of Santa Clara County, more particularly described as follows: BEGINNING at a point on the northerly line of Valko Parkway, being 110.00 feet in width, said point being at the easterly terminus of the course "North 89°31 '44" East 215.03 feet" of the southerly line of said Parcel 3, as shown on said Parcel Map. Thence along said southerly line of said Parcel 3, South 89°31'44" West 215.03 feet to the beginning of a curve to the right having a radius 595.00 feet; Thence westerly along said curve through a central angle of 32°13'39", and an arc length of 334.67 feet; Thence North 58°14'37"West 170.97 feet to a point on the northwesterly line of said Parcel 3, to the beginning of a non-tangent curve, concave to the northwest, having a radius of 372.50 feet, from said point a radial line bears North 29°26'28" West; Thence northeasterly, along said curve, through a central angle of 27°37' 18" and an arc length of 179.58 feet; Thence North 32°56' 11"East 600.12 feet to a point on the southwesterly line of Junipero Serra (State Highway 280) as shown on said parcel map; Thence along said southwesterly line of Junipero Serra Freeway (State Highway 280) South 57°02'38" East 298.28 feet to a point on the easterly line of said Lot 3, said point also being the beginning of a non-tangent curve concave to the east, having a radius of 600.00 feet, from said point a radial line bears South 68°39' 51" East; Thence southerly along said curve, through a central angle of 27°32'46", and an arc I¡;ngth of 288.46 feet. Thence South 06°12'37" East 320.00 feet; 15-/1(; Thence South 00°28' 16" East 14.00 feet; to the beginning of a curve to right, having a radius of 25.00 feet; Thence southwesterly, along said curve, through a central angle of 90°00'00" and an arc length of 39.27 feet to the point of BEGINNING. Lot 5 contains an area of 347,174 square feet (7.97 acres) more or less. /5-wl K:\Sur05I056051 \LegalslLot5.doc BARRIE D. COATE and ASSOCIATES Horticutural Consultants 23535 SurnmitRoad Los GaWs. CA 95033 408135~ 1052 RECEIVED NOV 0 9 Z005 ADDENDUM TO TREE SURVEY REPORT DATED JULY 218\ 2005 FOR TOLL OF CUPERTINO Prcpared at the request of: Gary Chao City of Cupertino 10300 Torre Avenue Cupertino, CA 95014. Prepared by: Michael L. Bench Consnlting Arborist October301h,2oo5 Job # 07-05-135 EXHIBIT A 15 -ltt ADDENDUM TO 1REE SURVEY REPORT DATED JULY 21", 2005 FOR TOLL OF CUPERTINO Assignment I was asked by Gary Chao, Planner, City of Cupertino, to prepare an addendum to the Tree Survey Report, dated July 21,2005, in response to the recently revised Site Plan showing proposed features. Specifically I was asked to comment on: · any trees that may not survive regardless of construction · trees which are candidates for transplanting · a replacement tree strategy (species, size, quantity, locations) · mitigation recommendations for trees to be for preserved The revised plan provided for this commentary is the Calabazas Place Existing Tree Exhibit prepared by BKF Engineers, dated 10-05-05. In order to comment about individual trees, I have added the assigned tree numbers to this plan. Trees in Poor Health Trees # 2, 3, 5, 51, 53, 88, 89,127,130,133,136, and 144 are noted on the plan to be preserved. However, the current health of these trees is very poor. They are not expected to recover even if given excellent care. However, in the event that they are preserved, I expect that they would gradually decline for a few years before they succumb to disease or insect infection, which is the typical outcome of very weak specimens. For this reason, I recommend that these trees be replaced regardless of construction, provided there would be adequate space for this number of replacement trees. Many of the Shamel ash (Fraxinus uhdei) are in only fair condition (rated as a 3 on a scale of 1-5, in which I is excellent; 5 is extremely poor) as noted in the tree survey of 7-21-05. It is conceivable that the structure of some of these trees may decline by the time construction gets under way. Should this occur, I would recommend that those be replaced at that time. Currently those rated as only fair are expected to be preserved. Trees Proposed to Be Removed The Existing Tree Exhibit prepared by BKF Engineers states in the Legend that 149 trees would be removed. I am only able to find 132 individual trees that are shown to be removed on this plan However, this plan shows construction features that would result in root loss or canopy loss which may be too excessive to allow survival for some of the existing trees that are shown to be preserved. Without greater plan detail, it is not possible to estimate more accurately the quantity of root loss to some trees, and the quantity of both root loss and canopy loss to other trees. However, it may be useful to note that root loss and canopy loss are not separate and unrelated damage. Typically a very healthy tree can tolerate approximately 20%-25% total loss (both root loss and canopy loss) and still survive in good condition, provided the tree is irrigated during the dry· months'ofthe year for 1-2 years. A weak specimen (i.e. one in only fair health) may not survive a 25% loss regardless of irrigation or aftercare. It appears that some of the Shamel ash trees, currently slated for preservation, located on both sides of Vall co Parkway and on the west side ofN. Tantau Avenue, may suffer root and/or canopy losses greater than 25%. In this event, at least some of the trees shown to be preserved would not be expected to survive in stable condition over the long term. The trees thaI' appear to be at greatest risk are Trees # 42, 44, 46, 48, 49, 60, 61, 62, 64, 66, 68, 69, 74, 78, 80, 82, 86, 88, 90,166, and 167. Prepared by: Michael L. Bench, Consulting Arborist October 30th. 2005 15-11'1 ADDENDUM TO lREE SURVEY REPORT DATED JULY 21"'. 2005 FOR 2 TOLL OF CUPERTINO Replacement Strategy The removal of 132 trees, (or 149 trees), without replacement, would be a substantial loss to the overall urban forest in this area. However, some individual trees make a much greater contribution to the site than other trees. For example, the following two exceptionally healthy specimens are compared: Tree # 17 - Shamel ash, 25 inch diameter, 50 feet height, 50 feet spread Tree # 197 - Indian hawthorne, 6 inch diameter, 10 feet height, 10 feet spread Additionally, specimens of similar height and spread in Fair or Poor health do not make as great a contribution as exceptionally healthy specimens, because of their reduced canopy density. I recommend that the replacement strategy reflect the contribution of each specimen, which is planned to be removed. I suggest the following categories of replacement: A - I - 48 inch boxed tree B-2 - 36 inch boxed trees C - I - 36 inch boxed tree D - 2 - 24 inch boxed trees E - I - 24 inch boxed tree F - I - 15 gallon tree G - No replacement recommended for dead or small extremely poor specimens The 132 trees shown to be removed are recommended to be replaced as follows: Size and Ouantitv Number Name DBH Condition Replace- 15" 24" 36" 48" ment Cate20rv 1 S. ash 22 Fair C I II C.elm 18 Good B 2 12 C. elm 19 Good B 2 13 S. ash 4,3 Good G 0 14 S. ash 4,3 Good G 0 15 S. ash 4,3 . Good G 0 16 S. ash 11,8 Good F 1 17 S. ash 25 Excel A I 20 C. redwood 16 Excel A 1 23 C. redwood 19 Excel A I 24 C. redwood 18 Excel A I 25 C.elm 16 Good C 1 26 C. elm 16 Good C I 27 C. redwood 14 Excel B 2 28 C. redwood 18 Excel A I 30 S. ash 18 Good B 2 31 S. ash 17 Good B 2 43 S. ash 18 Good B 2 Sub-total 0 I 0 15 5 Prepared by: Michael L. Bench, Consulting Arborist 15-/2-6 October 30"', 2005 ADDENDUM TO TREE SUR VE Y REPORT DATED JUL Y 21 "'. 2005 FOR TOLL OF CUPERTINO 3 . Size and Quantitv Number Name DBH Condition Replace- 15" 24" 36" 48" ment Cate20rv 47 S. ash 13 Fair E I 59 S.ash 13 Fair E 1 99 C. r 26 Fair C 1 101 C. pepper 14,10 Poor E I 102 B. acacia 12,10 Good D 2 103 B. acacia 12,11 Good D . 2 104 B. acacia 12 Good D 2 105 B. acacia 8, 7 Good E I 106 B. acacia 11,9 Good D 2 107 Elm 9 Fair F I 108 Elm 11 Dead G 0 109 Elm 7,5 Good E 1 110 Elm 19 Excel A I III Elm 7 Good F I 112 Orange 7,6 Poor F I 113 A. pine 69 Fair A I 114 Elm 17 Excel C I 115 Elm 21 Excel B 2 116 Elm 18 Excel C I 117 S. wattle 10 Good F 1 118 E. walnut 8,6 Good D 2 119 E. walnut 8 Poor F 1 120 E. walnut 9,9 Good E I 121 E. walnut 7,6 Dead G 0 122 E. walnut 16 Dead G 0 123 E. walnut 13,10 Poor E I 124 Orange 10,6 Fair F 1 125 S. dollar gum 16,16 Good B 2 126 v. oak 57 Dead G 0 137 S. ash 24 Fair D 2 138 S. ash 14 Fair E 1 I 139 S. ash 10 Poor F I 150 S. ash 24 Fair D 2 152 S. ash 20 Fair D 2 154 S. ash 18 Fair D 2 155 S. ash 10 Good D 2 156 S. ash 14 Good C I 157 S. ash 19 Fair D 2 158 S. ash 19 Good B 2 , 159 S. ash 26 Fair B 2 160 S. ash 25 Fair B 2 Sub-total 0 7 30 14 2 /5-/2-1 Prepared by: Michael L. Bench, Consulting Arborist October 30"', 2005 ADDENDUM TO TREE SURVEY REPORT DATED JULY 21". 2005 FOR TOLL OF CUPERTINO 4 . Size and Ouantity Number Name DBH Condition Replace- 15" 24" 36" 48" ment Cate"orv 161 S. ash 7 Good E I 162 S. ash 14 Good C I 163 S. ash 21 Good B 2 164 S. ash 21 Fair C 2 165 S. ash 13 Fair E I 168 C. redwood 17 Excel A I 170 H. locust 8 Poor G 0 171 H. locust 6 Fair F 1 172 H. locust 6 Fair F 1 173 H. locust 6 Fair F I 174 C. sycamore 55 Fair A I 175 M. vine 16 Excel A I 176 M. vine 15 Excel A I 177 M. pine 21 Good A I 178 S. ash 9 Good C I 179 S. ash 21 Good A I 180 S. ash 22 Good A 1 181 M. vine 9 Good C I 183 Sash 10 Good D 2 184 S. ash 8 Fair E 1 185 S. ash 6 Fair E I 186 S. ash 6 Fair E I 187 M. vine 19 Excel A 1 188 M. pine 17 Good A 1 189 M. Dine 15 Good B 2 190 E. Dear 7,5 Fair F I 191 E. pear 8,8 Fair F I 192 E. pear 11 Fair F 1 193 E. pear 6,5 Fair F 1 194 E. Dear 9,6 Fair F I 195 E. pear 13 Good E I 196 S. ash 14 Good D 2 197 1. Hawthorne 6 Excel F I 198 1. Hawthorn 6 Excel F 1 199 1. Hawthorne 7 Excel F I 200 1. Hawthorne 7 Excel F I 201 1. Hawthorne 6 Good F I 203 R. ash 12 Fair E I 204 R. ash 9 Fair E I 205 R. ash 10 Fair E I 206 R. ash 6 Fair E 1 Sub-total 0 13 16 7 9 15-/~Z. Prepared by: Michael L. Bench, Consulting Arborist Octoher 30'", 2005 ADDENDUM TO TREE SURVEY REPORT DATED JULY 21 IT. 2005 FOR TOLL OF CUPERTINO 5 Size and Quantity Number Name DBH Condition Replace- 15" 24" 36" 48" ment Cate"orv 207 R. ash 7 Fair E I 210 H. locust 6 Fair E 1 211 H. locust 8 Good E I 216 Yew Dine 7,5 Good D 2 217 Yew Dine 8,5 Good D 2 218 S. ash 22 Good A . I 219 S. ash 21 Excel A 1 220 S. ash 22 Excel A I 221 S. ash 12 Fair E I 223 S. ash 20 Good A 1 224 Sash 25 Good A 1 225 S. ash 20 Good A I 226 S. ash 16 Fair D 2 227 S. ash II Fair E I 228 S. ash 11 Good D 2 229 S. ash 15 Excel A I 230 S. ash 15 Good B 2 231 S. ash 9 Excel C 1 232 S. ash 13 Excel B 2 233 S. ash 14 Good C I 234 S. ash 15 Good C I 235 S. ash 27 Good A 1 236 S. ash 12 Fair D 2 237 S. ash 11,8 Good C I 238 S. ash 8 Fair E I 239 S. ash 7 Good D 2 240 S. ash 13 Fair E I 241 S. ash 12 Good D 2 242 S. ash 12 Fair D 2 243 S. ash 17 Good B 2 282 C. redwood 11 Excel B 2 308 C. redwood 15 Excel B 2 Sub Total 0 I 22 14 8 Totals 0 22 68 50 24 The density of the construction at this site may make it difficult to find room for 164 replacement trees. In this event, the quantities of trees may be reduced by substituting single larger ¡rees for 2 or more smaller trees. For example, 3- 15 gallon trees are approximately equivalent to 1- 24 inch boxed specimen. 3- 24 inch boxed trees are approximately equivalent to 1-36 inch boxed specimen Two- 36 inch boxed trees are approximately equivalent to 1- 48 inch boxed specimen. Thus, one 48 inch /5-/2.3 Prepared by: Michael L Bench, Consulting Arborist October 30th, 2005 ADDENDUM TO TREE SURVEY REPORT DATED JULY 21". 2005 FOR 6 TOLL OF CUPERTINO boxed specimen is approximately equivalent to 6 -24 inch boxed specimens By use of this logic, the entire 164 trees could be equivalent to 2-36" boxed and 65-48" boxed trees. Recommended Replacement Species I recommend the following species as replacement trees for planter beds that would be irrigated by bubbler or drip irrigation (sprinkler irrigation would not be compatible with these species): · Coast live oak (Quercus agrifolia) · Valley oak (Quercus lobata) · Deodar cedar (Cedrus deodara) · Canary Island pine (Pinus canariensis) · Chinese pistache (Pistacia chinensis) · Columbia London Plane (Platanus acerifolia 'Columbia ') I recommend the following species of trees that may be planted in lawn or in areas that would be irrigated by sprinkler irrigation: · Southern Live oak (Quercus virginiana) · Bald cypress (TclXus distichum) · Dawn redwood (Metasequoia glyptostroboides) · Tupelo (Nyssa sylvatica) Trees to be Transplanted The following 12 trees are proposed to be transplanted: Trees # 18, 19,22,169 - Coast redwoods (Sequoia sempervirens) Trees # 92, 93, 94, 95, 96, 97 - Canary Island Date palm (Phoenix canariensis) Tree # 212 - Coast live oak (Quercus agrifolia) Tree # 222 - Japanese maple (Acer palmatum) Tree # 100 - California pepper (Shinus moUe) Tree # 128 - Shamel ash (Fraxinus uhdei) In my opinion, trees # I 00 and # 128 are species not worthy of transplanting. I suggest that trees of the same species be transplanted into the new landscape as a cluster or a row, especially the Canary Island date palms. For this reason, it may be desirable to also transplant Tree #98, a Canary Island Date palm, which is not currently shown to be a transplant candidate Of course, a cluster of plants makes a bolder statement than individual specimens. It would be essential that these trees be transplanted by an experienced tree mover, for example Valley Crest Tree Company or Trees of California. Transplanted trees would,require a 3-5 year maintenance care plan. J S ~I z.f Prepared by: Michael L. Bench, Consulting Arborist October 30", 2005 ADDENDUM TO TREE SURVEY REPORT DATED JULY 21 IT. 2005 FOR TOLL OF CUPERTINO 7 Sidewalks or other hardscape including curb and gutter, or paving) planned for construction inside the driplines of existing trees must be installed on top of the existing soil grade in order to prevent the risk of excessive root loss. Respectfully submitted, ~ Michael 1. Bench, Associate ~,f)~ Barrie D. Coate, Principal MLB/sh Enclosures: Assumptions and Limiting Conditions Map '" ., 15,1 ZS Prepared by: Michael L. Bench, Consulting Arborist October 30", 200S ~ BARRIE D. COATE and ASSOCIATES Horn cutura! Consultants 23535 Summit Road Los Gatos. CA 95033 408135 '1-105 2 ASSUMPTIONS AND LIMITING CONDITIONS 1. Any legal description provided to the appraiser/consultant is assumed to be correct. No responsibility is assumed for matters legal in character nor is any opinion rendered as to the quality of any title. 2. The appraiser/consultant can neither guarantee nor be responsible for accuracy of information provided by others. 3. The appraiserlconsultant shall not be required to give testimony or to attend court by reason of this appraisal unless subsequent written arrangements are made, including payment of an additional fee for services. 4. Loss or removal of any part of this report invalidates the entire appraisal/evaluation. 5. Possession of this report or a copy thereof does not imply right of publication or use for any purpose by any other than the person(s) to whom it is addressed without written consent of this appraiser/consultant. 6. This report and the values expressed herein represent the opinion of the appraiser/consultant, and the appraiser's/consultant's fee is in no way contingent upon the reporting of a specified value nor upon any finding to be reported. 7. Sketches, diagrams, graphs, photos, etc., in this report, being intended as visual aids, are not necessarily to scale and should not be construed as engineering reports or surveys. 8. This report has been made in conformity with acceptable appraisal/evaluation/diagnostic reporting techniques and procedures, as recommended by the International Society of Arboriculture. 9. When applying any pesticide, fungicide, or herbicide, always follow label instructions. 10.No tree described in this report was climbed, unless otherwise stated. We cannot take responsibility for any defects which could only have been discovered by climbing. A full root collar inspection, consisting of excavating the soil around the tree to uncover the root collar and major buttress roots, was not performed, unless otherwise stated. We cannot take responsibility for any root defects which could only have been discovered by such an inspection. CONSULTING ARBORIST DISCLOSURE STATEMENT Arborists are tree specialists who use their education, knowledge, training, and experience to examine trees, recommend measures to enhance the beauty and health of trees, and attempt to reduce risk of living near trees. Clients may choose to accept or disregard the recommendations of the arborist, or to seek additional advice. Arborists cannot detect every condition that could possibly lead to the structural failure of a tree. Trees are living organisms that fail in ways we do not fully understand. Conditions are often hidden within trees and below ground. Arborists cannot guarantee that a tree will be healthy or safe under all circumstances, or for a specified period of time. Likewise, remedial treatments, like medicine, cannot be guaranteed. Trees can be managed, but they cannot be controlled. To live near trees is to accept some degree of risk. The only way to eliminate all risk associated with trees is to eliminate, all trees. cß~,¿J. ~ Barrie D. Coate ISA Certified Arborist Horticultural Consultant I '5-/2-1R ~ BARRIE D. COATE and ASSOCIATES HortloAurel ConsUtants 23535 Swnmit Road Los Gatos. CA 95033 4081353-1052 EXHIBIT A EV ALUA nON OF TREES AT FINCH AVENUE AND STEVENS CREEK BOULEVARD AND VALLCOPARKWAY AND NORTHTANTAU AVENUE, CUPERTINO Prepared at the request of: Kelly Snider Toll Bros. Construction 2560 N. l't Street, Suite 102 San Jose, CA 95131 Prepared by: Michael L. Bench Consulting Arborist July 21", 2005 Job # 07-05-135 / 5 ~I Z 7 EV ALUA nON OF TREES LOCATED AT FINCH A VENUE AND STEVENS CREEK BOULEVARD AND V ALLCO PARKWAY AND NORTH T ANTAU A VENUE. CUPERTINO FOR TOLL OF CUPERTINO Assignment I have been asked by Kelly Snider, Toll Brothers Construction, San Jose, to evaluate the trees located at Finch Avenue and Stevens Creek Boulevard and the trees located at Vallco Parkway and North Tantau Avenue, Cupertino.. The plans provided for this evaluation are topographic maps (3 sheets) of the existing features at this site, prepared by an unidentified professional and undated, and a preliminary exhibit of the proposed housing layout (Sheet 4), undated. Summary There are 317 trees on this site that poses trunk measurements of 6 inches in diameter or larger. All ofthe 317 trees are tagged for field identification, identified by species, and given a condition rating. Some trees and/or circumstances concerning them are briefly described. A numbered aluminum label has been attached to each ofthe 317 trees. Their locations are shown on the attached map. There are 8 "Specimen trees" at this site, as defined by city code. These are Trees #126, 212, 213,214,215,251,252, and 253. However, Tree # 126, a valley oak (Q. lobata), is dead. All of these other "Specimen trees" are coast live oak (Quercus agrifolia) trees. Trees that would be removed or severely damaged by the implementation of this present plan are noted. Of these, Tree # 212 is the only "Specimen tree," which would be a fine candidate for transplanting. Additional non-specimen trees that would be acceptable candidates for transplanting are also noted. The total value of these 8 specimen trees is $38,630. A general protection plan is provided. Observations There are 317 trees on this property. The attached map shows the locations of all of these trees. The 317 trees are classified as follows: 151- Trees # 1-10, 13-17,30-91,127-166,178,179,180,183·186,196, 218-221,223-243,317 - Shamel ash (Fraxinus uhdei) 4 - Trees # II, 12,25,26 - Chinese elm (Ulmus parvifolia) 75 - Trees # 18-24,27,28,29,168,169,254-316 - Coast redwood (Sequoia sempervirens) 7 - Trees # 92·98 - Canary Island date palm (Phoenix canariensis) . 9 - Trees # 99,100,101,208,209,245,246,247,249 - California pepper (Shinus moUe) 5 - Trees # 102-106 - Blackwood acacia (Acacia melanoxylon) 2 - Trèes # 112, 124 - Orange (Citrus aurantiaca) 1 - Tree # 113 - Aleppo pine (Pinus halepensis) J S-/2-g Prepared by: Michael L. Bench, Consulting Arborist July 21 ", 2005 EVALUATION OF TREES LOCATED AT FrNCH A VENUE AND STEVENS CREEK BOULEVARD AND VALLCO PARKWAY AND NORTH TANTAU A VENUE, CUPERTINO FOR TOLL OF CUPERTINO 2 8-Trees# 107-111, 114, 115, 116-Elm(Ulmusspecies) I - Tree # 117 - Silver wattle (Acacia dealbata) 6 - Trees # 118-123 - English walnu (Juglans regia) I - Tree # 125 - Redbox or Silver dollar gum (Eucalyptus polyanthemos) I - Tree # 126 - Valley oak (Quercus lobata) 10 - Trees # 167, 175, 176, 177, 181, 182, 187, 188, 189,202 - Monterey pine (Pinus radiata) 6 - Trees # 170-173,210,211 - Honey locust (Gleditsia triacanthos) 1- Tree # 174 - California sycamore (Platanus racemosa) 6 - Trees # 190-195 - Evergreen pear (Pyrus kawakami) 5 - Trees # 197-201- Indian hawthorne (Rhaliolepis indica 'Majestic Beauty') 5 - Trees # 203-207 - Raywood ash (Fraxinus oxycarpa 'Raywood') 7 - Trees # 212-215, 251, 252, 253 - Coast live oak (Quercus agrifolia) 2 - Trees # 216, 217 - AfricanYew pine (Podocarpus gracilior) I - Tree # 222 - Japanese maple (Acer palmatum) I - Tree # 244 - California buckeye (Aesculus californica) I - Tree # 248 - Scarlet oak (Quercus coccinea) 1 - Tree # 250 - Oak species (Quercus species) The particulars about these trees (species, trunk diameter, height, spread, and structure) are included in the attachments that follow this text. The health and structure of each specimen is rated on a scale of 1-5 (Excellent - Extremely poor) on the data sheets attached to this text. Based on these health and structure ratings combined, I have given each tree an overall condition rating as follows: Excellent Good Fair Poor Extremelv Poor Dead Soecimens Specimens Soecimens Specimens Soecimens Specimens 6,10,11,17, 9,12,16,25, 1,4,7, 8, 13, 2,5,51,123, 3,53,88,89, 108,121, 18-24,26,27, 30,33,34,35, 14,15,37,39, 144,170,250 112,119,127, 122,126 28,29,31,32, 40,41,42,44, 45,58,59,64, 130,133,136, 36,38,43,49, 46,47,48,55, 66,67,69,72, 139 50,52,54,56, 57,61,63,71, 73,75,76,77, 60,62,65,68, 74,79,86,90, 78,80,81,82, 70,92-98, I 00, 91,99, 101, 83,84,85,87, 104,105,110, 102,103,106, 124,134,145, 114,115,116, 107,109,111, 146,150,151, 147,156,161, 113,117,118, 159,160,165, 167,168,169, 120,125,128, 166,171,172, 175,176,182, 129,131,132, 173,174,184, 187,197,198, 135,137,138, 185,186,190, 199,200,201, 140,141,142, 191,193,194, 212,214,215, 143,148,149, 202,203,204, 216,217,218, 152,153,154, 205,206,207, 219,220,222, 155,157,158, 209,210,221, 229,230,231, 162,163,164, 226,227,236, . I? -IZ/f Prepared by: Michael L. Bench, Consulting Arborist July 21 ", 2005 EV ALUA nON OF TREES LOCATED AT FINCH A VENUE AND STEVENS CREEK BOULEVARD AND v ALLCO PARKWAY AND NORTH TANTAU A VENUE. CUPERTINO FOR TOLL OF CUPERTINO 3 232,235,243, 177,178,179, 240,242,262, 244,245,246, 180,181,183, 268,293,296 247,248,249, 188,189,192, 252,255,256, 195,196,208 259,260,266, 211,213,223, 267,269,275, 224,225,228, 276-278,280, 233,234,237, 282-288,290, 238,239,241, 291,292,299, 251,253,254, 300-314,317 257,258,261, 263,264,265, 270,271,272, 273,274,279, 281,289,294, 295,297,298, 315,316 Comments about Specific Trees Many, if not most, of the Coast redwood (5. sempervirens) Trees # 18-24,27,28,29,168,169, and 254-316 will decline if they are not irrigated tluoughout the construction period. Tree # 174, a California sycamore (P. racemosa) has a trunk diameter of 55 inches at 4 1/2 feet above grade. The canopy spread is about 70 feet. This is the second largest tree on this property. The largest is a 57 inch diameter valley oak (Q. lobata), which is dead. Tree # 174 is almost surrounded by paving inside its dripline. It appears that this has had a detrimental effect on the health of this specimen over the years. The Monterey pine Trees # 187 and 188 appear to be in good condition, but they are under a severe attack by the red turpentine beetle (Dendroctonus va/ens). It is likely that these trees will decline significantly by the end of this year. If these trees were thoroughly irrigated regularly, these trees may be able to overcome this attack. Several ofthe Shamel ash trees are perfonning poorly. This is primarily a result oflack of irrigation. Specimen Trees The City of Cupertino (Chapter 14.18) " finds that the preservation of specimen and heritage trees on private and public property, and the protection of all trees during construction, is necessary for the best interests of the City and of the citizens and the public thereof" The City "finds it is in the public interest to enact regulations controlling the care and removal.of specimen and heritage trees... " A "Heritage Tree" means "any tree or grove of trees which, because offactors, but not limited to, its historic value, unique quality, girth, height or species, has been found by the Architectural and Site Approval Committee to have a special significance to the community." A "Specimen tree" means any ofthe following: /5-156 Prepared by: Michael L. Bench, Consulting Arborist July 21 ", 2005 EV ALUA nON OF TREES LOCATED AT FINCH A VENUE AND STEVENS CREEK BOULEVARD AND VALLCO PARKWAY AND NORTH TANTAU A VENUE, CUPERTINO FOR TOLL OF CUPERTINO 4 SDecies Measurement from Natural Grade 4 Y2 feet Single Trunk Diameter/Circumference 10 inches (31 inches C) Multi-Trunk Diameter/Circumference 20 inches D (63 inches C) Oak trees; California Buckeye Big Leaf Maple; Deodar Cedar; Blue Atlas Cedar 4 Y2 feet 12 inches (38 inches C) 25 inches D (79 inches C) The specimen trees at this site are Trees #126, 212, 213, 214, 215, 251, 252, and 253. However, Tree # 126, a valley oak (Q. lobata), is dead. All of these other specimen trees are coast live oak (Quercus ag~ifolia) trees. Risks to Trees by Proposed Construction It appears that the majority of the trees located in the interior areas of the three sections of the property would be removed, and that many of the trees located along the perimeter of the property would be retained. However, there may be exceptions to this general observation due to grading or other requirements. Also, the proposed plan is preliminary and it is likely that design changes may require revision of the following comments evaluating construction risks. With the exception of Trees # 126 (dead) and # 212, the "Specimen" trees (# 213, 214, 215, 251, 252, and 253) would be preserved. Presently the following trees would be in conflict with construction features, which would require their removal. 1. Trees in conflict with driveway construction: Trees # 1,2, 16,48,59,60,95,99, 136,140,150,152,154,155,162,173,175,196,197,199, 200, 201, 203, 218, 219, , 226,229,231,232,233, and 238. 2. Trees in cont1ict with buildings: Trees # II, 13, 14, 15, 17, 19, 102, 103,105-111, 124,125,126,157,158,159,160,161,163,164,165,167, 168, 171, 172, 174, 179, 184,185,186,187,188,189, 190, 191,210,211,212,216,217,223,224,234,235, 236,237,239, and 240. Of these, Tree # 212, a coast live oak, is a "Specimen" tree. It has a trunk diameter of 16 inches and is in excellent condition. It would be a good candidate for transplanting. 3. Trees in conflict with pathways or sidewalks: Trees # 18,58,70,71,228, and 230. 4. Trees in conflict with paved areas: Trees # 40-47, 50-56,100,115-121,123, and 128. 5. Trees that appear to be in conflict with grading: Trees # 61-69. J '5 -/31 Prepared by: Mjchael L. Bench, Consulting Arborist July 21", 2005 EV ALUA TION OF 1REES LOCATED AT FINCH A VENUE AND STEVENS CREEK BOULEVARD AND VALLCO PARKWAY AND NORTH TANTAU A VENUE, CUPERTINO FOR TOLL OF CUPERTINO 5 In addition to these trees that would be directly in conflict with construction, there are several trees (all non-specimen trees according to city code) that may be so severely damaged by construction that they would not be expected to survive. These are Trees # 72, 74, 76, 78, 80, 82,84,86,88,90,114,166,169,183,101, 104, 195,221,222,225, 12,22,49,71,73,75,77, 79,81,82,85,87,89,91,94,122,176,204,206,180,181, 122,220,227,241, and 317. Candidates for Transplanting Of all of those trees that would be directly in conflict with construction or would be severely damaged, the following trees would be acceptable candidates for transplanting; Trees # 94 and 95 - Canary Island date palm (Phoenix canariensis) Trees # 18, 19, and 169 - all three 17 inch diameter coast redwoods (Sequoia sempervirens) Tree # 22 - 21 inch diameter coast redwood (Sequoia sempervirens) Tree # 212 - 16 inch diameter coast live oak (Quercus agrifolia) Tree # 222 - Multi-stem Japanese maple (Acer palmatum) - The success to be expected, when deciding transplant feasibility, is based on a combination of factors, including: · The adaptability of the species to severe root pruning. · The health of the individual specimen. · The size of the specimen. · The structural condition of the specimen. Value Assessment of "Specimen Trees" The values of the "Specimen trees" for trus project are calculated according to ISA (International Society of Arboriculture) standards, 9th Edition, Trunk formula method. The trunk formula worksheet made available by the ISA is used to complete the appraisal of Tree # 212, as examples of this method. However, in the interest of economy, I have applied the trunk formula method to a spreadsheet for the calculation of the 8 "Specimen" trees. This spreadsheet contains all of the steps required by the trunk formula method to achieve the same calculations that would be achieved by the individual worksheet form. The total value of the 8 trees (#126, 212, 213, 214, 215, 251, 252, and 253) is $38,630. Protection of Trees I. It would be essential to remove paving and curbing within the driplines of trees without significantly disturbing the soil directly beneath the paving. This may be done by removing small pieces ofthe paving by hand. An alternative method could be with a back hoe. The procedure would be: · to keep the tractor outside the dripline at all times. · to use the bucket to reach inside the dripline to catch an edge of the paving and to peel the paving back toward the tractor. ' · by this method, pieces of paving would be flipped on top of unbroken paving, then pulled across the unbroken paving outside the dripline, where the paving could be loaded onto a truck. I 5 -I 3 2. Prepared by: Michael L. Bench, Consulting Arborist July 21", 200S EVALUATION OF TREES LOCATED AT FINCH A VENUE AND STEVENS CREEK BOULEVARD AND V ALLCO PARKWA Y AND NORTH TANTAU A VENUE. CUPERTINO FOR TOLL OF CUPERTINO 6 · Immediately following the demolition and removal of paving inside the driplines of protected trees: · the exposed soil must be covered immediately with course wood chips to a minimum depth of3 inches · the area must be thoroughly wet down immediately · this area must be kept damp for at least I month 2. Once paving is removed, protective fencing must be installed at the dripline of preserved trees. This fencing must protect a sufficient portion of the root zone to be effective. For those trees that have oblique canopies, it would be essential to locate the fencing a minimum radius distance of 10 times the trunk diameter in all directions from the trunk, which may be outside the dripline. For example, a tree with a trunk diameter of 15 inches dbh (Diameter at Breast Height = 54 inches above grade) would require that protective fencing be erected 13 feet minimum from the trunk. Ifhardscape (i.e., curbing, paving, etc.) exists inside this 13 foot radius, the protective fence must be erected at the edge of the hardscape feature and be located at least 13 feet from the trunk minimum on all other sides. Occasionally it may be essential to have a certified arborist make decisions about the location(s) of protective fencing at the project site That protective fencing must: · Consist of chain link fencing and having a minimum height of 6 feet. · Be mounted on steel posts driven approximately 2 feet into the soil. · Fencing posts must be located no more than 10 feet apart. · Protective fencing must be installed prior to the arrival of materials, vehicles, or equipment. · Protective fencing must not be moved, even temporarily, and must remain in place until all construction is completed. Note: In my experience, less substantial fencing is not respected by contractors. 3. There must be no grading, trenching, or surface scraping inside the driplines of protected trees, unless specifically approved by a certified arborist. This includes trenches for any utilities (gas, electricity, water, phone, TV cable, etc.). 4. It would likely be essential to irrigate most preserved trees throughout the entire construction period during the dry months (any month receiving less than I inch of rainfall). Irrigate a minimum of 10 gallons for each inch of trunk diameter every two weeks. A soaker hose or a drip line is preferred for this purpose 5. The entire area inside the driplines of preserved trees must be mulched. Mulching consists of a protective material (wood chips, gravel) being spread over the root zone inside thedripline. This material must be 4 inches in depth after spreading, which must be done by hand. I,prefer course wood chips because it is organic, and degrades naturally over time. Wood chips must be . 1< to '!. inch in diameter primarily. One supplier is Reuser, Inc., 370 Santana Dr., Cloverdale, CA 95425, (707)894-4224. 15-133 Prepared by: Michael L. Bench, Consulting Arborist July 21", 2005 EV ALUA TION OF TREES LOCATED AT FINCH A VENUE AND STEVENS CREEK BOULEVARD AND V ALLCO PARKWAY AND NORTH TANTAU A VENUE. CUPERTINO FOR TOLL OF CUPERTINO 7 6. At locations where construction would occur inside the dripline of a preserved tree, I recommend that a root buffer be required to protect that portion of the root zone, which would exposed to soil compaction by worker activity. A root buffer consists of: · a 6 inch layer of course wood chips · topped with full sheets of 1-'/, inch plywood tied together. · The wood chips must be course (approximately % inch in diameter or larger)to be effective (shredded redwood is not acceptable for this purpose due to its compressibility). · The wood chips must be spread by hand over the existing soil grade to a minimwn depth of 6 inches over the specific area to be protected. · The plywood must be secured to prevent slippage. · This root buffer must be installed in conjunction with protective fencing and must remain in place until all construction is completed. 7. If any, old irrigation lines, drain lines, sewer lines, or any other underground features exist inside the driplines of protected trees, but would not be used, I recommend that they be cut off approximately at soil grade and left in the ground. , 8. Materials must not be stored, stockpiled, dumped, or buried inside the driplines of protected trees. 9. Excavated soil must not be piled or dwnped, even temporarily, inside the driplines of protected trees. 10. Any pruning must be done by an arborist certified by the ISA (International Society of Arboriculture) and according to ISA, Western Chapter Standards, 1998. 11. Any pathways or other hardscape inside the driplines of protected trees must be constructed completely on top of the existing soil grade without excavation. Fill soil may be added to the edge of finished hardscape for a maximwn distance of approximately 2 feet from the edges to integrate the new hardscape to the natural grade. 12. The sprinkler irrigation must not be designed to strike the trunks of trees. 13. Landscape irrigation trenches must be a minimum distance of 10 times the trunk diameter from the trunks of protected trees. 14. Landscape materials (cobbles, decorative bark, stones, fencing, etc.) must not be installed directly in contact with the bark of trees because of the risk of serious disease infection. /5 -/3 i Prepared by: Michael L. Bench, Consulting Arborist July 21", 2005 EV ALUA TION OF TREES LOCATED AT FINCH A VENUE AND STEVENS CREEK BOULEVARD AND V ALLCO PARKWAY AND NORTH TANTAU A VENUE, CUPERTINO FOR TOLL OF CUPERTINO 8 15. The plants that are planted inside the driplines of oak trees must be of species that are compatible with the environmental and cultural requirements of oaks trees. A publication about plants compatible with California native oaks can be obtained from the California Oak Foundation, 1212 Broadway, Suite 810, Oakland 94612. Respectfully submitted, tiid,"~ ~ ~ Michael 1. Bench, Associate " . ~ MLB/sh Enclosures: Tree Charts pages 1-32 Map Tree Value Chart Trunk Fonnula Chart Assumptions and Limiting Conditions 15-/35 Prepared by: Michael L. Bench, Consulting Arborist July 21 ", 2005 Trunk Formula Method 9th Edition, Guide for Plant Appraisal for Trees Less Than 30" diameter Owner of Property (tree): TOLL OF CUPERTINO PROJECT Location: Vallco Parkway and North Tantau, Cupertino Date of Appraisal: July 21", 2005 Date of Failure: N/A Appraisal Prepared for: Kelly Snider, Toll Bros. Construction Appraisal Prepared by: Michael 1. Bench Field Observations of Subieet Tree I. Species: Quercus agrifolia Tree# 212 2. Condition: Excellent 100% 3. Trunk Diameter, Inches: 16 inches 4. Location Value %: Site 75 % + Contribution 80 % + Placement 60 0/0- 215.;- 3- 72% Ref!ional Plant Aooraisal Committee Information 5. Soecies Rating: 100% 6. Reolacement Tree Size Iso. inches) TAR: 14.6 in. 7. Replacement Tree Cost: $ 902.50 8. Installation Cost: $ 902.50 9. Installed Tree Cost (# 7 + # 8): $1,805.00 10. Unit Tree Species Cost (per sq. inches): $ 37.00 per in2 Calculations Usinl! Field and Ref!ional Committee Information 11. Appraised Trunk Area Trunk Diameter, Squared (#3) x 785 = 201 sa. in. 12. Appraised Tree Trunk Increase (T Amc.) = TAA 201 in. (#11) - TA, 14.6 so. in. 1#6) = 186.4 so. in. 13. Basic Tree Cost: (TA<Nc,) (#12) 186.4 sq. in. x UTC (#10) $ 37.00 per sq. in + Installed Tree Cost (# 9) $ 1 805 =$8702. 14. Appraised Value: , Basic Tree Cost (#13) $ 8.702 x Species (#5) 100% x Condition (#2) 100% x Location (#4) 72 % - $ 6265 15. Round to nearest $100 ($5,000+) or $10 (less than $5,000) = $ 6.300. \ /5-/30 "U ~ '" ." ., ã! c. " '" '" '" '" '" '" '" ... '" '" '" ~ ~ ~ ~ i! w '" ~ '" .þ. w '" .. "0 "0 "0 "'0 '" 0 "'0 "'0 co c:: co c:: CO c:: '§ c:: CO c:: CO c:: CO c:: :J. '" ~'" :J. '" """, ~CD :J. '" :J. 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'W .", '.f> ..f> ..f> HEIGHT ESTIMATED 'II 10 l<.n 10 10 l<.n 10 l<.n 10 l<.n l<.n ---,.--- ---.,--- ---r--- ---.,--- ---r--- ---,--- ---r--- ---.,..-- ---r--- ---T-- ---------------------_.--------------- 'W '<.n '.f> '<.n 'W '.f> 'W '.f> '.f> '.f> SPREAD ESTIMATED 10 10 l<.n 10 l<.n :0 l<.n :<.n l<.n l<.n · I , · · · · · I~ .~ :~ Iw I~ :'" I'" I'" I~ I~ HEALTH (1-5) · · · · · · · · · · ---r--- ---.,--- ---r--- ---.,--- ---r--- ---.,--- ---,,--- ---.,..-- ---,,--- ---,..-- ---------------------.----------------- () · · · · · · · · · · STRUCTURE (1-5) 0 :w :.f> I'" IW I'" I'" I'" I'" I'" I'" :;¡ ___1.___ ___..1___ ___1.___ ___..1___ ---f--- ___..1___ ___L___ ___..J..__ ___L___ ---'"'--- -------------------------------------- Co · · · , · · · · · · · · · · · , · · · CONDITION RATING (2-10) ,. · · · · · · , · · · õ· · · · · · · , · · · ---1---- ---..--- ---1---- ---.,--- ---1---- ---.,--- ---..--- ---.....-- ---..--- ------ -------------------------------------- ::> · · · · · · · · · · · · · · · · · · · · HAZARD RATING (4-12) · · · · · · · · · · · · · · · · · · · · CROWN CLEANING · · · · · · · · · · " · · · · · · · · · · ---10--- ---01--- ---10--- ---..--- ---..--- ---..--- ---..--- ------ ---..--- ------ ---------------------------_.--------- ~ · · · · · · · · · , " · · · · · · · · · · CROWN THINNING :;¡ · · · · · · · · , · · · · · · · ---f--- · ---1--· · -------------------------------------- :; ---r--- ---,--- ---r--- ---,--- ---1"--- ---,--- ---,--- ---.,..-- · · · · · · , · · , CROWN RESTORATION co · · · , · · , · · , , · · , · · · · · · Õ ---1.--- ---..I--- ---1.--- ---..1--- ___1.___ ---..1--- ___1.___ ---....-- ___oL___ ---....-- --------------------------------------- · · · · · · · · , · II> · · · · · · · · · · CROWN RAISING · · · · · · · · · · !è: · · · · · · · · · · ---1---- ---.,--- --- o--- ---.,--- ---r--- ---,--- ---..--- ---.,..-- ---..--- ---,..-- -------------------------------------- :; · · · · · · · · · · REMOVE END-WEIGHT · · · · · , · · · · co · · · · · · · · · · ---~--- _n~-n ___1.___ 00-4--- ---f--- ----{--- n-f-n 00_4-__ -nfn- ---...1...-- -------------------------------------- Z · · · · · · · · · · · · CABLES NEEDED # '" · · · · · · · · · · · · · · · · · · · · '" ---...--- ---..--- ---...--- ---..--- ---...--- ___004___ ---..--- ---.......-- ---..--- ------ -------------------------------------- Co , · · · · · · · · · , · · · · · · · · · PRUNING PRIORITY (1-5) 'II · · · · · · · · · · , · · · · · · · · · , · · · · · · · · · , · · · · · · · · · INSECTS (1-5) " , · · · · · · · · · '" · · · · · · · · · · ---1..--- ---..1--- ___1.___ ---..1--- ---~._- ___..1___ ___L___ ___..1___ ___L___ ___.J..__ -------------------------------------- 'II · , · · · · · · · c:!: · · · · · · · · · · TREE CROWN DISEASE (1-5) · · · · · · · · · · C · · · · · ---1---- · · · · ---...--- ---..--- ---1---- ---.,--- ---..--- ---..--- ---.......-- ---..--- ---.......-- -------------------------------------- iii · · · · · · · · · · · · · · · · · · · DEAD WOOD (1-5) '" · · · · · · · · · · II> --of--- 00+__ --of--- _004_00 ---f-n 00-4--- ---fn- _004-__ ---f--- _004-00 --------------------------------------- 'II · · · · · · , · · · TRUNK DECAY(1-5) '" · · · · · · , · · · · · · · · · · · · · " ---!---- ----1--- ---10--- ---..--- ---..--- ---..--- ---..--- ------ ---..--- ------ --------------------------------------- , · · · · · · · · · ~ · · · · · · · · · · 0 · · · · · · · · · · c- · · · · · · · · · · · · · · · · · · · · ~9..'?L~~~0.~~9..'!!:.~.':~_!!:~L___ iÞ · · · · · · · · · · ---1---- ---.,--- ---1---- ---.,--- --- o--- ---.,--- ---..--- ---.......-- ---..--- ------ 3 · · · · · · · · · · · · · · · · · · · · ROOT COLLAR DISEASE (1-5) 'II · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · NEEDS WATER(1-5) ;a · · · · · · · · · · · · · · · · ---~--- · · · ---10--- ---01--- ---10--- ---01--- ---..--- ---..--- ------ ---.--- ------ ;jËEi[);~¡~Ë-;¡ïrïLï2:Ëi;¡~-------------- '" · · · · · · · · · · n · · · · · · · · · · 0 · · · · · · · · · · --of-n n_~--- ---f--- n_~--- ---f--- 00_400_ --·f--- ---4--- ---f--- ---4--- -------------------------------------- 3 · · · · · · · · : · RECOMMEND REMOVAL 3 : · · · · · · · · ___1___ · · · · · · · · ---..--- ___1.___ ---01--- ---,,--- ---01--- ---,,--- ---....-- ___L___ ---....-- --------------------------------------- '" · · · · · · · · · · ::> I , · · · I · · · · REMOVAL PRIORITY (1-3) Co · · · ! I · · · · · · · · · · · · · · · en · · · · · · · · , · HERITAGE TREE? · · · · · · · · · · - · · · · · · · · · · II> I I I I I I I I I I - PROTECTED TREE? c 'II IS -14/ 0'-'- Q) 0 0 roO"O" 'ltZ Q) 3 '" ~.., " '- -"Y'-I ~~ ~ g N"'o o ~ o 0 '" <: " CD ;:¡. s· o § " :J <: 3 u CD ~ u '< " ... <: '" .... ~ CD CD m <: :< CD '< " rn CD .~ '" '" " ~ o ¡a. ¡(J1 1° 'm' :::r 1 'Q) , :3 : 1CD I ,- !~ :::r ~ 'V> I'" 'CD ~ , , , , , , , , , , , , , :....... ¡....... IW ICD , , ---1---- ----1--- , , __.~.__ u_~___ , . , , , , ___L..__ ___.1___ , , , , , , , , ---1---- ___-1___ , , , , ---~--- ---~_.- I.þ. 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IN , , , 'm l::r 'Q) 13 ICD ,- I» ,'" '::r ,tv ,...... :VJ :<0 ---,--- ---.,...-- , , _n~n- _n+__ , , , , , , ___L___ ___-'-__ , , , , · , , , ---¡.--- ---....-- , , , , ___~--- n_+n I.þ. t.þ. 101 101 ---,.--- ---"T"-- !~ !~ , IN , ---,.--- , IN ---1.--- , , · · ---,.--- , , , ¡tv , ---..,..-- , IN ___..1..__ , , , , ---..,..-- · · · , . , . , , ---..--- ------ , . , . , , , , ---,.--- ---..,..-- , , , , , , ---t--- ---7-- , , , , , , ---r--- ---..,..-- , , · , , , ---t--- ---+-- , , , , , , ---,.--- ------ , , , , , , , , , , , , , , , , ___1.___ ___..1..__ , , , , , , , , ---,.--- ---.,...-- , , , , , , ___¡___ 00_+00 , , , , , , ___to___ ______ , , , , · , · , · , · , ---,.--- ---..,...-- , , , , , , , , , , , , , , ---,.--- ------ , , , , · , 00_100_ ___+__ , . , , , , ___.L___ ___....__ , , · , , , , . , -1- , , i , , , '.... :~ , , , 'm :::r 'Q) 13 ICD ,- !~ '::r .... ~ CD CD 'It -s> it:! ¡¡~ -~ .' C ~~ ~2 §~ ... 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III I: ~ III 3 III :J - III -------------------------------------- DBH --------------------------------------- DBH þIAMETER-@-2-¡;ËET----------m HEIGHT ESTIMATED -------------------------------------- SPREAD ESTIMATED HEALTH (1-5) --------------------------------------- () STRUCTURE (1-5) g _______________________________________ CL CONDITION RATING (2"10) go -------------------------------------- ::s HAZARD RATING (4-12) CROWN CLEANING --------------------------------------- ~ CROWN THINNING ê. --------------------------------------- :J CROWN RESTORATION ce. --------------------------------------- () CROWN RAISING ~ --------------------------------------- :r <.0 Z III III --------------------------------------- CL III REMOVE END-WEIGHT -------------------------------------- CABLES NEEDED # PRUNING PRIORITY (1-5) INSECTS (1-5) ~ _______________________________________ UJ TREE CROWN DISEASE (1-5) § -------------------------------------- ûï DEAD WOOD (1-5) :: --------------------------------------- ~ TRUNK DECAY(1-5) III _______________________________________ 10 a C" i> 3 III · · , · _~~<?_~_~~~0_~~~'::~'3_~~j!:~L___ ROOT COLLAR DISEASE (1-5) ~~_~~~_~~::~_~s~:~~______________ ~ ~~~~~_y.~_~:'::_~~~§.~_~_mnm____ ~ RECOMMEND REMOVAL 3 ______________________________________ CD :J REMOVAL PRIORITY (1-3) Co HERITAGE TREE? PROTECTED TREE? I en - .. - I: III 15~/t.fZ -¡ 0> 0> 0> 0> 0> 0> , 0> 0> 0> 0> '" 0 (í) '" -. 0> 0> ". W N ~ '" 0 '- '- '**' ~ OJ 0 0 ~ 0" 0" 'UJ 'UJ 'UJ 'UJ 'UJ ·UJ 'UJ 'UJ 'UJ 'UJ '**' Z :::T :::T :::T :::T :::T :::T :::T :::T :::T :::T 'OJ 'OJ 'OJ 'OJ 'OJ 'OJ 'OJ 'OJ 'OJ 'OJ '- 0 OJ :3 :3 :3 :3 :3 :3 :3 :3 :3 :3 ç: ...j 3 :'" :'" :'" :'" :'" :'" :'" :'" :'" :'" , <1> ,- ,- ,- ,- ,- ,- ,- ,- ,- ,- ,., = JO :» ¡~ !~ !~ !~ !~ !~ !~ :» :» "1J :::> ~ ~ -¡ ,en ,en ,en =- ::oc -~ g, :::T :::T :::T :::T :::T :::T :::T :::T :::T :::T õJ itj " ~ W ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ '"- ¡¡~ ~ :>- N 0> 0 'W 'w 'w 'w 'w 'w 'w 'w 'w 'w '" rT'I 0 - :0> :0> '0> :0> :0> :0> '0> :0> :0> :0> z ~~ ¡ ~ '" 0 0 ,'" ,-. ~ '0> ,,,. 'w :N ,~ '0 tÐ ~ 0 0> 0 ~ ~ ~ ~ ~ ~ ~ ~ OJ 9. 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(.oJ '<0 , , --- o--- ---...--- , , ---~--- ---~--- , , , , , , ___L.__ ___.J.__ , , , , , , , , ---1--.- ___...___ , , , , , , n_f_n _n,___ l(.ù Itn :CJ1 :0 ---,.--- ---.,--- Ii:; !~ , , :W :I\J , , ---...--- ---.,--- , , :W :N ___1..___ ___..1___ , , , , , , , , ___..___ ___"'1___ , , , , , , ~~r~ ~~I~ ---t--- ---1--- ~~r~ _~~_~__},',.~-~-~- ---t--- -i--:¥ nr-mr ---r--- _uy__ ---¡--- ~~r~ ---1--- ~~I~ , , , -¡- I :N :.... 10 100 , , ___to___ ----1--- , , ---~--- ---~--- , , , , , , ___L.._ ___.J___ , , , , , , , , ---/0--- ___-1___ , , , , , , -nf--- n_"__ 101 101 :01 :01 ---r--- ---..--- !~ !~ , :.... IN , , ---1"--- ---..--- , , :N :N ___L.__ ___.J___ , , , , , , , , .--to--- ----1--- , , . , , , ~I~~ ~~I~ ---t-- ---1--- ~~r~ ~~I~ ---r--- ---l-- T:i--- mt--- --or ---t--- U_Y__ ---¡-.- ---1--- ~~r~ ~J:~~ I I T :.... :.... :-....J : v.> __.to___ ---1--- , , , , ---f-n _n"__ , , , , , , ___L___ ___-'-__ , , , , , , , , ---/0--- _______ , , , , ---~--- .--~--- 101 I.þ. 10 :0 ---1"..- --..--- !~ !~ , :~ , ---r--· , ,~ , ___L___ , , : ---..--- , , , , :0> , --"T"-- , :N ---'--- , , , , --....... , , , ---t--- T:l =rl mr-- mr ---r--- ---l-- ---t-- ---i--- ~I~~ ~~I~ I I INSECTS (1-5) ~ ~~r~ ~~~[~ ~~~~~~~~~?~~~~!~~~~~~~!~~)~~~~ i i i DEAD WOOD (1-5) :: _______ ___~__ -------------------------------------- en : : TRUNK DECAY(1-5) <Þ ---t--- ---~--- --------------------------------------- Jr ! ¡ g. m¡m ---t--- ~~~-~-~~~~~~~~~~~;2~;L.- ~ NEEDS WATER(1-5) ;0 ___________.__________________________ (1) NEEDS FERTILIZER, g ----b--- --------------------------------------- :3 mL _~_~~~~~~~_~_~~~~~~~m____ ~ i REMOVAL PRIORITY (1-3) S. HERITAGE TREE? PROTECTED TREE? :.... :.... :c.o :Q:) ---..--- --.....-- , , ---~--- --+-- , , , , , , ___L___ __.J..__ , , , , , , , , ---/0--- __....__ , , , , -_.~--- --+-. 'v.> I.þ. :0 :0 ---r--- .-"T"-- !~ ¡~ , , :-"- :.þ. , , ---,,--- --"T"-- , , :N :N ---t--- ~--t--- , , , , ---t--- 1---+-- , , . . ::~:= :=;-::: ~~~¡~~~ ~~~][~~~ ---t--- ---1---- ---t--- ~~I~ I DIAMETER@ 4-1/2 FEET -~-(j-Ci'i:i3-iii3i'-~~------------------- ;: <Þ II> en C ~ <Þ 3 <Þ :> - '" -------------------------------------- DBH -------------------------------------- DBH JIAMËÏÊR-@)2-F-ÊËÏ--------m--- HEIGHT ESTIMATED -------------------------------------- SPREAD ESTIMATED HEALTH (1-5) -------------------------------------- () STRUCTURE (1-5) g _________._____________________________ CL CONDITION RATING (2-10) ~ -------------------------------------- ~ HAZARD RATING (4-12) CROWN CLEANING ." -----.-------------------------------- ., CROWN THINNING ê. --.----------------------------------- ~ CROWN RESTORATION '" ______________________________________ ë1 II> _c:~~~_~.f.\:~~~~__________________ ~ REMOVE END-WEIGHT cÈ --------------------------------------- ., CABLES NEEDED # ~ -------------------------------------- ~ PRUNING PRIORITY (1-5) '" I en - II> - C '" /5 -ltf3 0 '- '- m 0 0 ¡¡; o:r o:r 'It z '- 0 m , -J 3 , P> ~ f -< ~ g w '" '" 0 0 - 0 0 '" C "0 ro ;¡ 0> 0 § " :J C 3 o:r ro ~ o:r '< "Q c en -< ro ro UJ c ~ ro '< ~ " CD ro ~ '" " ~ 0 ~ ..., :2 , , , , , -< , , , , , , , , , , ~ ..., 0> 0> 0> 0> '0> '0> '0> '0> '0> ro 0 to 0> ..., 0> :'" :... :w :'" :~ ro , , , , , 'It ~> , , , , , , , , , , 'UJ 'UJ 'UJ 'UJ 'UJ 'UJ 'UJ 'UJ 'UJ 'UJ :::T :::T :::T :::T :::T :::T :::T :::T :::T :::T ,m 'm 'm 'm 'm 'm 'm ,m 'm 'm :3 :3 :3 :3 :3 :3 :3 :3 :3 :3 :ro :ro :ro :ro :ro :ro :ro :ro :ro :ro co ,- ,- ,- ,- ,- ,- ,- ,- ,- ,- ~ !~ :J> !~ !~ :J> :J> :J> :J> :J> :J> "(J ::r > ,en ,en ,en ,en ,en ,en ,en c... ::>co :::T ¡::T :::T :::T :::T :::T :::T :::T :::T ¡::T ¡¡¡ .. ~ " > ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ 3- ¡¡ ª 'w 'w 'w 'w 'w 'w 'w 'w 'w 'w V> "'" :..., :..., :--J '..., :..., '--J :..., :--J :..., :0> z " ~ ~ V> :0> l± 0 ~ ,to '0> :.::::! ,'" ,w ,~ '0 ,to m <;> a 0 ~ ~ ~ ~ ~ ~ ~ ~ ... , , , , , , , , , , 3 ~ ~ n I , , , , , , , , , , [ n , : , , , , , , , , ro Š > 0 , , , , , , , , , , , , , , , , , , , Q , , , , , , , , , , -i > , , , , , , , , , , "'" -i , , , , , , , , , , V> , , , , , , , , , , "'" , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , :~ :~ :~ :~ :~ :~ :~ ,~ ,~ :~ ,..., '... :0> ,..., :'" :'" :'" :... :... ,..., DIAMETER@ 4-1/2 FEET , , , , , ...--~-- ---~~.- ---..--- ___to___ ----1--- ---..--- ---".--- ---..--- ----- ---..--- -~-(j-CTi:i3-'fi3T~~-------------------- , , , , , 0 , , , , , , , , , 0 , , , , :;: --+--- ---i--- ---f--- ---i--- ---f--- ---i--- ---f--- --+-- ---1--- "--+-- --------------------------------------- : , , , , , , 0 , , C1) , , , , , , , , , DBH !II , , , , , , , , , ---+-- III --_\0_-- ---..1--- --.1..-- ___.J___ ___L___ ___.J___ ___L___ __.J..__ ___.L___ __________w___________________________ , , , , , , , , , C , , , , , , , , , , DBH êiJ , , , , , , , , , , , , , , , , , , , t---l..-- ---1---- ---...--- ---1---- ---...--- ---1---- ---""--- ---1---- ---1--- ___.a.___ --------------------------------------- 3 , , , , , , , , , , , , , , , , , , , , DIAMETER @ 2 FEET C1) ---~--- , , , , , , , , , :J ---i--- ---f--- ---+-- ---f--- ---+-- ---f--- --+-- ---1--- --+-- - ,'" ,w 'w ,w ow ,w ,'" ,w 'w ,w HEIGHT ESTIMATED III :0 10 :'" :0 :0 :0 :'" :'" :0 :'" ---1"'--- ---,--- ---1"'--- ---,--- ---r--- ---.,--- ---r--- --..,--- ---r--- ---r-- --------------------------------------- '... 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'w '''' 'w 'w 'w 'w 'w SPREAD ESTIMATED :'" :0 :0 :'" 10 :'" :'" :'" :'" :'" , , , , , , , , , :~ :w :~ :w :w :~ :w :'" :~ :'" HEALTH (1-5) , , , , , , , , , , n ---1"'--- ---,--- ---1"'--- ---.,--- ---1"'--- ---.,--- ---1"'--- ---.,..-- ---T--- --.,..-- ---------..--.------------------------ , , , , , , , , , , STRUCTURE (1-5) 0 :'" :'" :'" :w :w :'" :'" :w :'" :'" :J ___L___ ---..1--- ---1..--- ---..1--- ---1..--- ---..1--- ___1.___ ___.J___ ___1.___ __..1..__ --------------------------------------- C- , , , , , , , , , , , , , , , 0 , 0 , , CONDITION RATING (2-10) ;+ , , , , , , , 0 , , õ· , , , , , , , u~__ , , ---fo--- ---.,--- ---to--- ---.,--- ---p.--- ---'1--- .--,.--- ---f'--- --~-- ------.----------------.--------------- :J , , 0 , , , , , , , , , , , , , , , , , HAZARD RATING (4-12) , , , , , , , , , , :J:: , , , , , CROWN CLEANING , , , , , -C , , , , , ---¡--- :::r: :::r: :::¡::: -.-..--- ---..--- ----1--- ---..--- ------- -------------------------------------- -. , , , , , C , , , , , CROWN THINNING :J , , , , , , n-f--- , , , ----------------.--------------------- :;- ---,--- ---,--- ---r--- ---.,..--- , , , , , CROWN RESTORATION CO , , , , , , , , , , Õ _u¡_u -u1--- ---t-u -u1--- -utu- ---..1--- ---"'--- ---7-- ---..--- ___..1..___ ----------------.--------------------- , , , , !II , , , , , CROWN RAISING , , , , , g ___ju_ =f ~~]~~~ =f =f: , , , 0 , -------------------------------------- ---.,..-- ---,.--- ---.,..-- ---,.--- ---~--- 0 , , , , REMOVE END-WEIGHT :J , , , , , CO 0 , , , , ---~--- -nf--- ___.J..__ ---t--- ___..1..___ --------------------------------------- Z , , , , , , , CABLES NEEDED # C1) , , , , , mr--- , , , , , C1) ---.,--- ---..--- ---.,..-- ---..--- ---~--- ------------------------.------------- C- , , , , , .. , , : , , PRUNING PRIORITY (1-5) , , , , , , , , , , , , , , -C . , , , , , INSECTS (1-5) , , , , , C1) , , , 0 , ---ru- ::~::: _00 00_ :+ :~:= ---..1--- ___1.___ ___.J___ ___1.___ ___..1..___ --------------------------------------- III , , , , , '" , , , , , TREE CROWN DISEASE (1-5) , , , , , 0 , , , , , ---.,..-- ---,.--- ---.,..-- ---f'--- ---~--- -------------------------------------- ¡¡¡ 0 , , , 0 0 , , 0 0 DEAD WOOD (1-5) C1) 0 0 , , , !II u-t--- ---i--- -nfn- ---+-- ---f--- ___+00_ --------------------------------------- .. , , , , 0 TRUNK DECAY(1-5) C1) , , 0 , , , , . , , -C nf- -ur-- mr--- --or mr-- ---..--- ___fo___ ---....-- ---+--- -.----- ------------------..-----------.------ , , 0 , , -. , , , , , 0 , , 0 , , cr , , , , , , , , , , ~~?_~_~~~0_~~~'!§.~_~~_!!:~)____ iD -nr--- -ur-- -urn- ---y-- .ut--- , , , , , ---.,--- ---f'--- ---.,..-- ---f'--- _.-.....--- 3 , , , , , , , , , , DISEASE (1-5) III , 0 , , , ROOT COLLAR 0 , , , , , , , , , ~EEDS WATER(1-5) ;0 , , 0 , , .u1u- u-tn- ---1u- --.¡--- , , , , , C1) ---..--- ___fo___ ---....-- ___fo___ ----.-- --------.----------------------------- , , , , , ~EEDS FERTILIZER. n , , , , , 0 , , , , , -ur--- ::1:: :::¡::: :::r ::r:: ___ion -nf--- 00_+00 ---1--- 00_+___ -.-------------.----------------.----- 3 , , , , , RECOMMEND REMOVAL 3 , , , , , , , , , , , C1) ---..1--- ---..--- ---..1..-- ---..--- ---......--- -----------.-------------------------- , , , , , :J , , , , , REMOVAL PRIORITY (1-3) Co : , , , , , 0 , , , , (J 0 , , , , HERITAGE TREE? , , , , , - T l , , , , , !II I I I I I I - PROTECTED TREE? c III 15-1'-/4 (X) -. -. -. 0 <D (X) -. 0 <- <- OJ 0 0 ¡;; <:Y <:Y '(f) '(f) (f) (f) .. z :::T :::T ::T ::T 'OJ 'OJ OJ OJ <- ., OJ :3 :3 3 3 r 3 :m :m ~ ~ "! ,- ,- "- ý' :» :» » » ~ --¡ ,", ,", "' "' ~ ~ & '::T !::r ::T ::T W N '-" 9- , 0 , , 0 0 , '-" , c , "0 , , m , ;:> , , s· , , 0 , , , , , ~ ,~ :N ,~ ,m :m '0 :0 , ---~--- -~-:---- ~--...--- ___-t___ , , , , , , , ---f--- _00'_00 ---f--- 00-'--- , , , , , , , , , , , , ___L.__ ---.1.-- ._.1.___ ___.1___ , , , , , , , , , , , , , , , , ---1---- ---..--- ---1.--- ---...--- , , , , , , , , , , , , ---fn- ---'00- -nf--- 00_'_00 'W 'w '.... 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'0 I.þ. , , ---..--- ------ , , _n~--. __.+__ , , , , , , ___1,___ ___..1..__ , , , , , , , , ---..--- ---.......-- , , , , , , ---~--- ---...:--- ,m I.þ. :0 :0 ---,.--- ---.,....-- ¡~ !~ , :'" , ---r--- , I'" ___1,.__ , : ---~--- : , , :W , ---.,....-- , I'" ___..1..__ , , I ------ , : : : , , ---...-- ---....-- , , , , , , , , ---r--- ---.,..-- ¡ ! ___L___ ___.......~_ , , ¡ : ---r--- ---Tn , , , , ___1.___ ___..1..__ , , , , , , , , ---..--- ------ , , , , , , DIAMETER@ 4-112 FEET -~-(j-CTï:s-i'~T-Ë~-------------------- ~ --------------------------------.----- ctI DBH ~ --------------------------------------- t: DBH ~ --------------------------------------- :3 DIAMETER @ 2 FEET g: HEIGHT ESTIMATED ¡¡; -------------------------.------------ SPREAD ESTIMATED HEALTH (1-5) --------------------------------------- () STRUCTURE (1-5) g ___________________~___________________ CL CONDITION RATING (2-10) g. ------------------------------------.-- ::J HAZARD RATING (4-12) CROWN CLEANING ." ----------------~--------------------- ., CROWN THINNING § -----------------------~~------------- :r CROWN RESTORATION <e. --------------------------------------- () CROWN RAISING ~ -R-ËMOVËEiÑ-ö~WËïGHi_-----mm ,g. --------------------------------------- ~ CABLES NEEDED # ~ --------------------------------------- CL PRUNING PRIORITY (1-5) '" , , , , , , , , , , ___1.___ ___.J___ , , , , ___1_._ ' I ---t--- , , n_~_.. _~_~--- , , , , , , ---..--- ---......-- , , , , , , , , , , , , ~~-..--- ---~-- , , , , , , , , , I ---..--- , , , , ---r--- , , ___L__. I , , , , , ---......-- , , _n+__ , , , .--.......-- , , I INSECTS (1-5) ~ --------------------------------------- '" TREE CROWN DISEASE (1-5) § -------------------------~------------- u; DEAD WOOD (1-5) m ---------------------------~~--------- ( ) TRUNK DECAY(1-5) .. -------------------------------------- ." ... o c- ROOT COLLAR COVERED (1-5) iõ -------------------------------------- :3 '" ROOT COLLAR DISEASE 11-5) NEEDS WATER(1-5) ;0 _._________________________~__________ ctI NEEDS FERTILIZER g :3 3 .. " CL ------------------~--------_.~-------- RECOMMEND REMOVAL -----~---------_._-~---------~._------ REMOVAL PRIORITY (1-3) HERITAGE TREE? PROTECTED TREE? CJ - .. - C '" 15~f53 0 '- '- w 0 0 ~ 0" 0" '" Z '- -, w C" 3 "' CD "- ~ Y' -i -~ ~ & V> IV '" 0 0 - 0 0 '" C ." CD ;:¡. :; 0 .. " ;:J c 3 0" ~ 0" '< "!? c., c en -i ~ CD CD CfJ c :< CD '< ~ " rn CD ~ '" II :?: o ~ ~ , , , , , , , , -i ,~ ,~ ,~ ,~ ~ ~ ~ ~ ~ ~ ~ I" I", I", I", '" '" '" '" '" '" CD 10 I'" lco I" '" '" .þ. 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" DIAMETER@4-1I2 FEET , , , --+- --- --- --- 00_ --- --- 00_ ---- ---r--- ---oj--. ---~--- ----1--- -~-(j-Ci'ï:¡;'(i3i'-~~-------------------- , , , , , , , ---r- ;:: --+--- ---i--- ---fn- n_~n- n_ --- --- 00_ 00_ --- 00_ ---- -------_.------------------------------ , , , , " , , , , DBH I» , , , , .. ---1---- --...1.-- ___L___ ___.J___ on¡- --- --- --- --- --- 00_ 00_ ---- ______________________________w________ c: , , , , , , , , DBH ~ , , , , CD , , , , ---i 3 -.-...--- ---..1--- ---...--- ---.. --- 00_ _00 _00 _00 _00 --- --- ---- --------------------------------------- , , , , DIAMETER " , , , , @ 2 FEET , , , , onrw- ;:J 00+00_ n_i_n ---f--- n_~n- ----i--- 00_ _00 00_ 00_ _00 00_ 00_ ---- - 'V> ,'" 'V> 'V> :(.r.) '" '" .þ. IV HEIGHT ESTIMATED .. 10 10 I'" 10 '0 ¡a 0 0 '" '" ---..--- ---,--- ---,.--- ---.,--- onf-"'- ---"'1--- 00_ _00 --- n_ _n --------------------------------.------ 'V> 'IV 'IV '.þ. .v> :W '" '" .þ. IV SPREAD ESTIMATED 10 I", I", 10 :(J1 :(]1 0 0 0 '" , 1w Iv> I~ :~ :~ ¡w IV ~ ~ ~ HEALTH (1-5) , , , , 00+_ ----{--- () ---,.--- ---,--- ---..--- ---.,--- 00_ 00_ 00_ _00 00_ _00 _00 ---- -------~---~.~~._---------~~~~--------- , , , , ---+~- 0 I.þ. ,~ ,~ ,~ :VJ ~ V> V> IV STRUCTURE (1-5) ;:J , , , ---f- ___1..___ ___oJ___ ___1..___ ___.J___ _00 n_ _00 _00 _n _00 _00 ---- -------------------------------------- a. , , , : , , , CONDITION RATING (2-10) a: , , : , , , , n-c- 0 --- o--- ----1--- --- o--- ---.,--- _00 _00 00_ _00 _00 00_ _n ---- -----------~------------~-~------------ ;:J , , , , , , I , , HAZARD RATING (4-12) , , , , , , , . CROWN CLEANING , , , , -0 ---:..--- , , , ---:- :::1:= ---"'--- ---...--~ ----1--- 00_ _00 00_ _00 _00 n_ 00_ -~-~ ~~~-~~~-~-~-~-~--~--------------------- ~ , , , , c: , , , , CROWN THINNING ;:J , , , , , , , , ---¡- 00_ _00 _n n_ 00_ n_ --- --~- --~-~---------------------------------- :; ---...--- ---,--- ---...--- ---,--- , , , , CROWN RESTORATION IC , , , , , , , , ---r- 0 --_I._~~ ~-~"'-~- ~-~...~-- --~-:--- --- 00_ --- _n --- --- n_ ---- --~-~~~------------------------------- , , , I» , , , , CROWN RAISII'{G , , , , !:1: , , , , ---r- :=r ---,.--- ---,--- ---r--- ---.,--- n_ 00_ _00 00_ n_ _n n_ -~-- ---~-~-~-~~-~---~---------~------------ :; , , , , REMOVE END-WEIGHT , , , , IC , , , , ---¡- n+n_ n-i-n n-f--- ---~--- n_ 00_ _00 00_ n_ _00 _n ~~-~ ~-~-~~~--~-~-~_._-------_._~----------- Z , , , , CABLES NEEDED # " , , , , , , , , ---~ _n n_ _n --- n_ n_ --- ~-~~ -------------------------------------- " --- o--- ----1--- -~~..--- ----1--- C. , , , , .. , , , , PRUNING PRIORITY (1-5) , , , , , , , , , , , , -0 IV> , , , V> INSECTS (1-5) , , , " , , , , --+- __.1..___ _~~oJ~_~ n-fn- _~_.J___ :1= _00 _n _n --- --- --- --- ---- --------------------------------------- .. , , , C!: , , , , TREE CROWN DISEASE (1-5) , , , : c , , , --- o--- ----1--- ---..--- ---.,--- ---¡- _00 _00 n_ --- --- n_ n_ ---- ---------~~~~-~~~-~-~~~~---~~-~-----~-- ëiï , , , , , , , , DEAD WOOD (1-5) " , , , , I» nof-n _n~n- -~-r--- ___~n- ---¡- --- _00 --- --- n_ --- --- ---- ----~---~-~---~-~---------------------- .. , , , , V> TRUNK DECAY(1-5) " 'v> , , , , , , , onr ---r -0 ---..--- ---..--- ---..--- .---1--- 00_ _00 --- 00_ --- --- --- ---- --------------------------------------- , , , , ~ , , , , 0 , , , , 0" , , , , , , , , ROOT COLLAR COVERED (1-5) ëõ , , , , ---r ---1--- ---,..--- ---.,--- ---r--- ._~.,--- --- --- --- 00_ n_ _n --- ---- --------------------------------------- 3 , , , , , , , , .. , , , , ROOT COLLAR DISEASE (1-5) , , , , , , , , ~~_~~~_~~!:~_~5~:_~~_______________ ;0 , , , , , , , , ---i ---1--- _n n_ _00 00_ 00_ _n 00_ ---- " --- o___ ----I~-- ---..--- ---¡--- , , , ~-~-~~~_!:~-~!:~~~;;~~-~------------- '"' , , , , 0 , , , , --of-n _n~-n ---f--- ---~--- 00+_ ---in- _00 n_ 00_ 00_ --- --- n_ ---- 3 , , , , RECOMMEND REMOVAL 3 , , , , , , , ___J___ on~ " ---1.--- ___oJ___ ---...--- _00 _00 00_ _00 _00 --- _00 ---- -------------------------------------~- , , , , ;:J -u , , , , REMOVAL PRIORITY (1-3) c. , , I , OJ , , <C C/) CD HERITAGE TREE? - 'It I» - ~ PROTECTED TREE? c: " .. J 5 -(54 0<-<- wg.g. ~ 'I1'z (~o Q) --J3 b~ 'f--1 wg ~(J1Q. o '" ~ -~ () c: "0 '" ::1- :; o § II :J c: 3 0- '" ~ 0- '< "0 , c: '" --1 ~ '" '" (f) c: :< '" '< II CD '" ~ '" II ~ o !a. , , :~ 'CD :0 , , '00 :::r 'Q) :3 :'" ,- :» ,'" :::r , , , , , , , , : . , , , , , , , , , :N IN II\.) 1-" , , ~--r-·- --~i--- ---~--- ---~--- , , , , , , ---t---- ---1--- , , , , , , ---~--- ---"'--- , , , , , , --of-n _n~--- IN IVJ 10 10'1 ---,.--- ---,--- !~ ¡~ :N , ---...--- , :N ___10___ , , , , ---,.--- , , , , :N , ---.,--- , :N ---.,1--- , , , , ---.,--- , , , , , , , , , ---1---- ---..--- , , , , , , , , ---r--- ---~--- , , , , ___,,___ ---..1--- , , , , , , , , ---1"'--- ---.,--- , , , , ---~--- ---1--- , , , , , , ---1---- ---,--- , , , , , , , , , , , , , , , , ___L___ ___.1___ , , , , , , , , ___,.___ ---"1--- , , , , , , --of-n _n~--- , , , , , , ---1---- ___-1___ , , , , , , , , , , , , ---,.--- ---,--- , , , , , , , , " Q) CD, "', ..: 001 , , , , , , ---...--- ---...--- , , , , , , --of--- ___~-n , , , , , , ---1..--- ___..1___ , , , , , , , , ,~ :--J :<D , , , , ,~ I--J :CD , , '00 l::r 'Q) :3 I'" ,- !~ :::r , , , , , , , , , , , , , , , , , , , '00 :::r 'Q) :3 :'" ,- :» ,'" '::r co :~ , ---,.--- ---..--- , , ---~--- ---~--- , , , , , , ___10___ ___.J___ , , , , , , , , ---1---- ___....___ , , , , , , ---fn- n_~n- IN 1.+:::0- :0 :0 ---...--- ---.,--- !~ ¡~ :N , ---1"'--- , ,~ , ___10___ , , , , ---1"'--- , , , , :N , ---.,--- , :N ___.J___ , , , , ----1--- , , , , , , , , , ___1-___ ___-t___ , , , , , , , , ---,.--- ---,--- , , , , , , ___..___ ---..1--- , , , , , , , , ---1"'--- ---...--- , , , , , , n-fn- ---~--- , , , , ___~--- ___4____ , , , , , , , , , , , , , , , , ___10___ ___.J___ , , , , , , ---~--- ---~--- , , , , ~--~-~- --~~--~ , , , , , , ~--...--- ---...--- , , , , , , , , , , , , ---r~-- ---'1--- , , , , , , , , , , , , , , ---...--- ---...--- , , , , , , ---f--- ---~--- , , , , , , ---1---- ___...___ , , , , , , , , , l , , , , , , , , I I , , :~ ,--J :--J , , , , ,~ :--J :m , , IS: '0 ':J 1m ,~ ,'" ~ :~ ':J :'" :s: '0 :3- :'" ,~ ,'" ~ '" '-. ':J :'" , , , 1....10. :....10. 101 :m ~~-...--- --~-!--- , , ---~--- ---~--- , , , , , , ---1..--- ___....___ , , , , , , , , ---..--- ---...--- , , , , , , ---f--- ___+n I.Þ,. 'CJ1 :01 :0 -~·r--- ---.,--- ¡~ !~ , :~ , ~--r--- , :N ~-_I..~~- , , , , ~--...-~- , , , , , , ---..--- , , , , ---r~-- , , , --_I-_-~ , , , , ---,.--- , , , ___L___ , , , , ---..--- , , , , :~ , ---.,--- , ,~ , ___.J___ , , , , ---'1--- , , , , , , ---...--- , , , , ---.,--- , , , ___.J___ , , , ----:--- , , --~~--- , , , ---...--- , , , , , :~ ,--J I'" , , IS: '0 :3- :'" :@ ~ :" :5" ,'" , , , , , , , , , , , , , , , , , lJ õJ ¡;; '" <:: en QJ @ :3 o g¡ , , ,~ I--J :.... , , ,() :Q) ,- ,0 :Õ' :3 ,-. 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Z Q) 3 '" DIAMETER@4-1I2 FEET -~(jL:;-i:i3-iii3;--~~------------------- s: co II> II> C ~ co 3 co ::I - II> ----.--------------------------------- DBH -------------------------------------- DBH -------------------------------------- þlAMETER @ 2 FEET HEIGHT ESTIMATED -------------------------------------- SPREAD ESTIMATED HEALTH (1-5) -------------------------------------- () _~:r_~_l!~::~~_~_~~:~2_________________ ¡t ~~~~~~:?.~_~~~!~9.._(~:~~Lm_ g. ::I HAZARD RATING (4-12) CROWN CLEANING -0 -------------------------------------- ""' CROWN THINNING ~ _____n_______nun_________n_______. ::I CROWN RESTORATION <e. --------------------------------------- () CROWN RAISING ~ -R-ÊMÖVË-ËÑõ-_WËïGHi--mu-m ,g. --------------------------------------- <: CABLES NEEDED # ~ ______________________________________ CL PRUNING PRIORITY (1-5) II> INSECTS (1-5) ----.--------------------------------- TREE CROWN DISEASE (1-5) -------------------.------------------ DEAD WOOD (1-5) .------.-.---------------------------- TRUNK DECAY(1-5) -----------------.----.--------------- -0 co II> c:: o iñ co II> II> co -0 ~ o e- m 3 II> , , -i- ~??_~_~~~0_::9.?.':'§.~_~~_!::~L_ ROOT COLLAR DISEASE (1-5) NEEDS WATER(1-5) -----------------~-------------------- t:'_~~~~_~~_~::I_~~~~~m_________m RECOMMEND REMOVAL -------------------------------------- REMOVAL PRIORITY (1-3) HERITAGE TREE? PROTECTED TREE? (f - II> - c: II> ;0 co n o 3 3 co ::I Co 15 -ISS 0'--'-- wg.g. ~:;t:z s-äm ....,3 6~ 'f-i ~wg ~O'IQ. o '" () c: "0 m ;:¡. :'J o § " :J c: 3 0- m ~ 0- '< " " V> -i ~ m m en c: ~ m '< ~ 2 '" ì:f ~ ì:f ª ~ ID o , , ,~ len iID , , 'm' '< ' 1m : ,~ , ~: 1m : ,m , :~ : :-0 I 'm :~ IS: '0 1;1 :m I@ r< :::g ':J 1m , , , , . . , , , , , , , , , , , , , ,~ :en len , , , , i~ ,en I"'" . , is: '0 :a 1m 1m r< '-U '-. ':J :m , , , , , , , . , , , , , , , , , IS: '0 :a 1m lëD r< '-U _. ,:J ,m , , , , , , , . , , , , , , , , , , , ,~ :en 1m · , '00 i::r '''' 13 :m ,- !G: l::r · , , , , , , , , , , , , , , · , , , :........ 1-" :-...1 co ___þo___ ----1--- , , , , ---f--- ---~--- , , , , , , ___1..___ ___.1___ , , , , , , , , ---1.--- ___-1___ , . , , ---~--- ---~--- I~ 1(...,) 10 10'1 ---...--- ---.,--- ¡~ !~ · :m (j) ___~--- ----1---- , , ---~--- ---~--- , , , , , . ---~--- ---~--- , , , , , , ---1.--- ___-1___ · , , , , , ---f--- ---~--- 1-" ,..... :01 ()1 ---r--- ---.,--- I.... I...... 10 :0 I~ ,'" , ___..___ ----1--- , , , , ---f--- ---~--- , , , , , . ___1..___ ___.a___ , , , , , , , , ---1---- ___..1___ , , , , ---~--- ---~--- I...... Ie...> 101 101 ---...--- ---.,--- !~ ¡~ It.> !..... , , ---...--- ---.,--- , , :e..> :(.0) ___1..___ ___.1___ , . , , , , ---:..--- ---~--- , , , , , , '" ...., ~l~~ ---t--- =F ---~--- ~~f~ --¡--- n-r--- j.þ. ~ ---rn- ~r~ '" . 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I I , Iv> , --.,.--- , :'" .__10.__ , , , · ---r---. , , , , Iv> , ---.,--- · ,~ , ___.J___ , · , , ---.,--- , , · , , , , ---~--- ---.:~-- , , , , , , , , -·-r--· ---,.-- , , · , , , ___L___ ~__.l___ , , , . , , , , ---,.--- ---.,--- , , , , , , ---f--- _n~___ , , , , , . _._r-___ ---...~-- , , , , , , , . , , , , , , , , ___10___ ___.J___ , , · , , , ---~--- ---..:--- , . , , ..-~..- -_.~-_. , , , , , , ___...__. ___-1.__ , , , , , , · , , , , , -..,.--- -.-.,.-- , , , , , , , , , , · . , , _.-...--- -_....--- , , , , ---~--- ---~--- , , , , , . _._L___ _.....___ , , , , , ! , , , , , , , I I , , ,~ len :'" , , '00 l::r '''' :3 :m ,- !~ :::r , , , , , , , , · , ,~ I", :" , , '00 l::r ,'" 13 :m ,- I» ,v> l::r · , , , , : · · , , , , , , , , , , , , I~ .en IV> , , '00 l::r ,'" :3 1m ,- I» ,v> '::r :00 :-1. I :0 ---..--- -...,--- , , · . ---fn- ---+-- , , , , , , ---t--- ~--t-.- , , , , , , .._L__. ___..1-._ · . , , ---~-_. ---~~--- 1-1. IN ---~~- _._~~_. 1-1. 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I - PROTECTED TREE? " .. --_.. , ,. 00° ---. --_. , ---'" , , , --·t- , , , ---t- , --_.- , , , , ---}- , , , , --of- , ---o.- , I : , ---~- I . , , , . ---o.- I : ---T- I , ___10_ , : , , , i ., I S-15b 0'-'- tug.g. ~~Z 5=-011> .3 .)~ ->-Cf-l ~~ W ~ N"'o o - o '" () c " (1) ;:¡ s· o :§ " ::¡ c 3 0- (1) ~ 0- '< " i:: '" -< ~ (1) (1) (f) c ¿ (1) '< ----1--- , , _n~___ , , , ___.1.__ , , , , ---.1--- . , ---~--~ ,~ :0 ---,--- ,~ :'" :~ , ---,--- , :N ---.1--- , , , , ---..--- , , , , , , ___01___ , , , , ---,--- , , , ---..1--- , , , , ---,--- , · ---~--- , , , ---...--- , · · , , , , ---~--- , , , ---..--- , , ---~--- , , , ---..1--- , , , , , , ---,--- , , , , " OJ (1) J1. , , , ---...--- , , ---~--- , , , ---..1--- , -0' w' <0, (1). 'It' ~I '" II :::: o ~ ~ , , !~ :0 , , :::¡ 'c- ,-. 'w :::¡ :I 'W !~ ':J" :0 :3 , , , , , .~ :<D :<D , , :::¡ 'c- ,-. 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'a. 0 0 , , <J1 , , , , co , , , , "0 , : , , , I , ID , , , ;¡. , , , , , , , , S· , , , , , , , , 0 : , , , , : , , , , : , , , , , , ,1'0 ....... 10 II\.) ---~-~- ---~--- , , ---~--- ---f--- 1 1 ---~--- ---~--- , , , , , , ___~___ ___1___ , , , , ---f--- ---~--- ---f--- I..þ. '-..J 1m 1(J1 :0 :0 ---T--- ---~--- ---T--- !~ !~ ¡~ ,~ ___l~_ , ---+--- : , ___.L___ , , , , ---10--- : ~ 11 :J co 3 cr ~ cr '< "0 CD < õ co en -< CD ID (f) co :< ID '< , I~ , ·--T--- , ,~ , ___J..__ , , , ---~--- , , , , :(1) 1m , , --¡--- ---1--- --+--- ---+--- , , , , , , __......___ ___.1___ , , , , , , , , --......--- ---...--- , , , , __+___ _nf--- 'VJ Iv.> 10'1 10'1 ---ro--- ---..,--- 1->. I....... :0"1 :0'1 , 1f'0 .-...,..--- , ,~ , ___..L.___ , , , --..:...--- , , , , , :...... 1-" , , ·--T--- ---r--- , , I...... I....... _nf_n 1---+--- , , , , , , ---+--- --~--- , , , , , , , I~ , ---,.--- , ,~ , ___.1.___ , , , , ---'f--- , , , :1'0 :..... If\..) 1(7) , , ___~--- ___of___ : :x 00+_00 _nj___ , , , ,. >. , , ___L___ ___.1___ , , , , , , , , ---10---- ___...___ , , , , ---~--- ---f--- I-. 1-...1 :0 :0 ---1"'--- ---.,--- !~ !~ :~ , ---,..--- , ,~ , ---....--- , , , , ------ , , , , :~ , ---.,--- , IN ---..1.-- , , , , ---of--- : , :--. ,-" IC;.) 1-->' , , ---1---- ___of___ , , ---~--- ---~--- , , , , , , ___L___ ___.1___ , , , , , , , , ---1---- ___., ___ , , , , ___~n- _n~_n IQ) IQ) :CJi :0 ---...--- ---.,--- !~ !~ , I~ , ---...--- , ,~ , ___L___ , , , , ---...--- , , , I~ , ---.,--- , ,~ , ---.1--- , , , , ---1--- , , , -< . ID ID 'It --> ... "'" ::> »- iti c.. ::>c "' »- ~ &'~ ª '" ...., JJ, ~ ~ '" 0 ç;;~ :;; 0 ~i &i n n I ~ ;;;: 0 -i »- ...., -i '" ...., , -0 W ;? z OJ 3 ID ,~ 1<J1 DIAMETER@4-1/2 FEET ---r--- -~-(j-LTi:i3-\ii3T-EÏÃ-------------------- ;: ---~--- --------------------------------------- ! DBH ~ ___L___ _______________________________________ ~ ! DBH @ nlm þIAMET-ËR-@-;-F-ËET-mm-mm ~ ___~___ ;L ¡g¡ HEIGHT ESTIMATED If> ---...--- --------------------------------------- !~ SPREAD ESTIMATED IN , ---...--- , ,~ , ___L___ , , , , ---...--- , , , i , , , : , , , , , : : , , , , , , __..L___ , __..L___ ---~--- , , , ---t--- ----+---- ___. o___ ---....--- ---1---- ---....--- ---1---- , , , , , , , , , , , , : , , , , , , : , , : , , I , , , , , , , ---~--- , ---t--- ---¡--- ---rn --,..--- ---,--- ---...--- ---.,--- ---...--- ---...--- , , , : , , , , , : : , : , , , , , , , , , ---7--- ---..1..--- ---,/,--- __....L.___ ---~--- __....L.___ ---..1--- ___L.___ ---.1--- ___L___ , , , , , , , , , , , , , , , , : , , : ---¡--- , , , , . , , --...:---- , , , , , , ---T--- ---...,..--- ---.,--- ---...--- ---..--- ---...--- ---..--- ---r--- , , , , , , , , , , , , , , , , , , , , , , , , , , , , , ---t--- __.Å-___ ___.1___ __..L___ _nj___ ___L___ ___ion ___L___ ---i--- n_~--- , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , ---. o--- ------- ---+--- ---+---- ---1--- ------ ---., --- ---...--- ---1--- ---...--- : , , , , , , , , , , , , , , , , , , , , , , , , , , , , : : : , , , l : 1 ___.1___ ___..L___ ___.1___ , , , : : : ---~--- ---...:---- ---~--- , , , , , , ---+--- ---~--- --.+--- , , , , , , , , , ___. o___ ___+____ ---4--- , , , , , , , , , , , , , , , , , , ---T--- ---_--- ·--T--· , , , , , , , , , , , , " (J] ID J' , , , ---+--- , I , ---t--- , , , ___.L___ , -0: OJ, «) ID 'It N '" <J1 " ~ o . ~ , , , --¡--- : , --,..--- , , __J..___ , : , , , , ---+--- , , n_¡___ : ___1___ : , , , , , , , . , , , __...l.___ ___J___ , , , , , , , , ------ ---..--- , , , , , , --+--- ---j--- , , , , , , ._....L.___ ---....-.- , , , , , , , , , , , , ---r---- ---1--- , , , , , , , , , , , , __..L___ ---~___ , , , , __+n_ ___+_n , , , , , , __....L.___ ___'/'.__ , , , , , , , , , , , , , , , , ___L___ ___.1___ , , , , , , , , ___...___ ---1--- , , , , ---~-_. ---~--- , , , , , , __....L.___ ___....___ , , , , , , , , , , , , .--r---- ---1--- , , , , , , , , , , , __....L.___ , , , , ---...._- , , , --.....--- , , , , , , ___o ___ , , , n_j___ , , ___1___ : , , , , , , , , , , , , ___L___ ___.1___ , , , , , , ---~--- ---~--- , , , , ___~--- .._~_n , , , , ___L___ ___~___ , , , , , , , , , , , , -_....--- .--.,--- , , , , , , , , , , , , , , ___....__ ___o ___ , , , , _n~_n --.4-n , , , , , , ___L___ ___.&___ , , , , , , , HEALTH (1-5) --------------------------------------- () STRUCTURE (1-5) g --------------------------------------- ~ CONDITION RATING (2-10) g: -.-------.----------------------------- ~ HAZARD RATING (4-12) CROWN CLEANING --------------------------------------- CROWN THINNING --------------------------------------- CROWN RESTORATION --------------------------------------- CROWN RAISING --.------------------------------------ REMOVE END-WEIGHT --------------------------------------- CABLES NEEDED # ----------------.---------------------- PRUNING PRIORITY (1-5) ... " , " ::> S· ea Õ .. !'!: S· ea Z co co C. If> , , i INSECTS (1-5) ¿¡ ___L___ __________._____.______________________ ~ i TREE CROWN DISEASE (1-5) § ---...--- -----------------.--------------------- ëñ" ¡ DEAD WOOD (1-5) co ---f--- --------------------------------------- ~ ! TRUNK DECAY(1-5) co ___1-___ _______________________________________ 10 , ' I 0 ! ROOT COLLAR COVERED (1-5) ~ ---r--- -----------.-------------------------- :3 : If> , ROOT COLLAR DISEASE (1-5) I NEEDS WATER(1-5) ;JJ ---~--- --------------------------------------- ~ : NEEDS FERTILIZER , g ---f--- --------------------------------------- 3 ! RECOMMEND REMOVAL 3 ___L.___ _______________________________________ ~ , ::> I REMOVAL PRIORITY (1-3) a. HERITAGE TREE? PROTECTED TREE? (J) - .. - " If> IS-Ifph 0 <- <- OJ 0 0 ~ cr cr .'It Z <- -, OJ c- 3 "- <0 ~ 'f -< -~ ~ & '" N '" 9- 0 0 0 '" C l:> <0 ;:¡. s· 0 'It II :J C 3 cr ~ cr '< '2 ( Õ c V> -< CD <0 (f) C < <0 '< II [JJ <0 ~ I", -< 1 N N N N N N N N N ~ 18 ill ill ill ~ ill ill ill ill ill <0 ill 00 " '" .... '" N ~ <0 I I 'It "S> ! '0 '0 '0 '0 '0 '0 '0 '0 '0 '0 --.-" -"".-,-..- :0 :0 :0 :0 :0 :0 :0 :0 :0 :0 I 'OJ ,<» ,<» ,<» ,<» ,<» ,<» ,<» ,<» ,<» !~ :~ ¡!4. !~ :!4. :!4. ]!1 :V> :!4. :!4. ,- :;0 :;0 :;0 :;0 :;0 :;0 :;0 :;0 :;0 :;0 ... "" '<0 '<0 '<0 '<0 '<0 '<0 '<0 '<0 '<0 '<0 " :>- 'a. :a. 'a. 'a. 'a. 'a. 'a. 'a. 'a. 'a. -u :" '" :" :" :" :" :" :" :" :" ¡¡; .- ~ c... ,., w ~ :0 :0 :0 :0 :0 :0 10 :0 :0 :0 3- " ª :>- '0 '0 '0 '0 '0 '0 '0 '0 '0 '0 '" ...., :a. :a. :a. :a. 'a. 'a. 'a. 'a. 'a. 'a. Z -" . ~ '" 0 , , , , <» S) . :;; 0 , , , , ~ i , , , 3 ~ :¡¡ n , , , [ n : , , <0 ~ N :>- 0 , , , , , , , , , , , --< :>- , , , , ...., --< , , , , '" , : , , ...., : , , , , , , , , , , , , , I" ~ ~ 00 ,~ ,~ ,~ ,00 ,~ ," DIAMETER@ 4-1/2 FEET '" 0 ,~ ,~ 'N :'" --r- , , , , , u_ m --- 00_ --- 00- ---~--- ----1--- ---..--- _~.-t___ ---..--- -~--+--- -~-(j-LTï:i3-iii3T-Ë~-------------------- , , , , , , , , , , , , s: --. .-- _00 --- --- 00_ --- _00 n-f--- _n~-n ---fn- 00_+__ ---fn- 00_+00 --------------------------------------- , , , , , , co , , , , , , DBH '" , , , , , , !II _00 --- 00_ m _00 _00 --.1---- ___.J___ ___L___ ___.J..__ ___.1.___ ----1..-- --------------------------------------- -Tn , , , , , , C , , , , , , DBH , , , , , , , , CO I , , , , , , ---i--- 00_ u- n_ n_ on _00 ---~--- ---.. --- ___10___ ----'--- ---..--- ---........-- --------------------------------------- 3 , , , , , , DIAMETER CO , , , , , , @ 2 FEET __L_ , , , , , , :J 00_ --- 00_ _00 --- _00 ---f--- _n~n- ---f-n _00+__ _nf_n 00_+__ - IN '" '" ~ '.... '.... ,.... '''' '''' 'N HEIGHT ESTIMATED !II ___L<:'2. 0 0 '" :0 :0 :'" :'" :0 :'" 00_ m --- _00 00_ ---1'--- ---,--- ---r--- ---,--- ---1'--- ---.,...-- --------------------------------------- ¡~ N ~ ~ ,~ 'N 'N ,~ 'N ,~ SPREAD ESTIMATED 0 '" '" :'" :0 :0 :'" :'" :0 , , Ic.v ,~ ~ N N :'" IN :N :~ !~ HEALTH (1-5) , , , , () nï~- 00_ 00_ --- _00 00_ _00 ---r--- ----:--- ---..--- ---..,--- ---..--- ----r-- --------------------------------------- , , , , , STRUCTURE 0 ~ ~ ~ ,~ ,~ ,~ ,~ ,~ ,~ (1-5) , , , , , , ::1 ---¡..--- _00 _00 00_ --- _00 _00 ___L___ ___J___ ___L___ _._.J___ ___L___ __.....L__ --------------------------------------- C- , , , , , , i , , , , , , CONDITION RATING (2-10) ::;: I , , , , , , õ· ---r--- , , , , , , 00_ 00_ _00 _00 --- 00_ ---to--- ---..--- ---to--- ---....-- ___to___ ----t--- --------------------------------------- ::1 , , , , , , I , , , , , , HAZARD RATING (4-12) , , , , , , ---f.-- , , , , : , CROWN CLEANING , , , , , " , , , , , , 00_ _00 _00 00_ --- _00 ---..--- ---.. --- ---..--- ---..-- ---..--- ---......-- --------------------------------------- , , , , , , , C , , , , , , CROWN THINNING I , , , , , , ::1 00_ _00 --- m --- --- n-f--- , , , , , -----.-----------------.--------------- ,; ---r--- ---,--- ---r--- ---,--- ---r--- ---.,--- , , , , , , , CROWN RESTORATION IC , , , , , , I , , , , , , ñ ---¡..--- _00 --- m m --- _00 ---..--- ___J___ .__10__- ---......-- ___10__- ---.....-- --------------------------------------- , , , , , , , '" m~_n , , , : , , CROWN RAISING , , , , , g --- 00_ _00 n_ _00 00_ , , , , ---~--- , --------------------------------------- ---r--- ---.,--- ---r--- ---..,....-- ---.,...-- i , , , , , , REMOVE END-WEIGHT :J , , , , , , IC , , , , , , --r- on m --- _00 00- --- -nfn- ___~n- -nf--- ___.J___ ---f--- ___.J...__ --------------------------------------- Z , , , , , , , , CABLES NEEDED # CO , , , , , , , , -_.~--- , , , CO mr--- --- 00- --- m _00 --- ---to--- ___-1___ ----:--- ---..--- ----t--- --------------------------------------- C- , , , , , i , , , , , , PRUNING PRIORITY (1-5) !II , , , , , , I , , , , , , , , , : , , , , , , , INSECTS " , , , , , , (1-5) CO , , , , , , _00 m --- 00- 00_ --- ___L__. ___.J___ __.L___ ___.J___ __.L___ ___.J...__ --------------------------------------- !II mr--- , , , , , , "" , , , , , , TREE CROWN DISEASE (1-5) , , , , , , C 00_'00_ , , ---~--- , , , no --- _00 00- --- m ---to--- ---..--- ----t-.- ---..--- ----t--- --------------------------------------- iiï 1 , , , , , , , , , , , , DEAD WOOD (1-5) CO , , , , , n_~n_ '" n-rn- m m --- _00 --- m -nf--- 00_+_- ---f-n 00_+__ ---fn- --------------------------------------- !II , , , , , , TRUNK DECAY(1-5) CO I , , , , , , , , , , , , " ---r-n m m --- _00 00_ _00 ---..-.. ---.. --- ---..--- ---......-- ---t--- ---......-- --------------------------------------- , , , , , , , , , , , , 0 , , , , , , C- , , , , , , , , , , , , ROOT COLLAR COVERED (1-5) iD , , , , , , ---rn- _00 --- --- n_ on _00 ---r--- ---.,--- -·-to--- ---.,-.. ---r--- ---.......- --.------------------------------------ 3 , , , , , , , , , , , , !II I , , , , , , ROOT COLLAR DISEASE (1-5) I , , , , , , i , , , , , , NEEDS WATER(1-5) ;>J , , , , , , , , , , , , ---1---- --- m 00_ 00- 00_ 00_ ---1---- ___-t___ ---1--_. ---......-- _....--- ---......-- --------------------------------------- CO 1 , , , , , , NEEDS 0 , , , , , , FERTILIZER , 0 , , , , , , _00 m -nf--- 00_+__ _nf_n , _nfn_ 00_+00 --------------------------------------- 3 -Tn m no _00 --- ---,.--- , , , , , , RECOMMEND REMOVAL 3 , , , , , , , , , , , , CO m --- _00 _00 --- 00_ ---..--- ___J___ ---..--. ---..¿--- __.10_-- ---......-- -.------------------------------------- ---r--- , , , , , , :J -U I , , , , , , REMOVAL PRIORITY (1-3) a. , , , , : : <» , , , cg! HERITAGE TREE? (J) : ::t' - --- '" - '" I PROTECTED TREE? c 0 !II '" " ~ o ~ ~ IS~/{gl , , , , , :W IW W ¡~ W W ,~ 0 :0 0 0 10 ill :00 :.... (» (]o 0 '- '- , , , 0 0 , , , m cr cr '0 10 '0 '0 0 '0 ¡¡; .. z :0 ,0 :0 :0 0 :0 'm 'm 'm 'm m 'm '- 0 m :en len len ¡~ ~ !~ c 3 ,- ,- ,- .; co :;U 1;U 1;U :;U ;U :;U , 'CD '<0 '<0 '<0 CD '<0 ~ -' --i 'a. 'a. 'a. ia. a. 'a. -~ ~ ~ I:;; I:;; I:;; ,:;; ~ I:;; W 10 :0 :0 :0 :0 N (]o 0 '0 '0 '0 '0 0 '0 0 - 'a. 'a. 'a. :a. a. :a. 0 0 , , (]o : , c , "0 , , , , <0 , , ::>. , , , : :5 , , , 0 , , , , , , , , , , ~ ,~ (¡J :0'> -__....___ ---oi--- , , n_~_n ___~n_ , , , , , , ___'-___ ---..1--- , , , , , , , , ___1-___ ___-1___ , , , , _u~___ n_~n_ I.þ. 10l :U'I :0 ---,.--- ---.,--- !~ !~ ~ II :0 C 3 cr ~ cr '< "0 " , :~ , ---...--- , ,~ , ___1..___ , , , , ---...--- , , , , , ___L___ , , , , ---r--- , , ___L.___ , , , , n_¡___ , , ---1..--- , , , , ---r--- , , L C en --i ~ <0 <0 (j) C :< CD '< , :~ , ---,--- , ,~ , ----1--- , , , ---~--- : , , , , ---~--- , , , ---,--- : ___J___ , , , , ---,--- , , , ___..1___ : , ---~--- , , , , , , , : : , , ___1...__ ___..1___ , , , , , , ---~--- ---~--- , , , , ___~--- ___~-n , , , , , , ___ ..___ ----1--- , , , , , , : 1 , , ---,.--- ---.,--- , , , , , , , , II OJ <0 -~ , ___L__ , , , , ---1"'--- , , ___L___ , "U' m' '" <0 .. 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PROTECTED TREE? rJ - -- !!:. " en I S,I(p1 ~ BARRIE D. COATE and ASSOCIATES Horticutural Ccmsultants 23535 Summit Road Los Gatos. CA 95033 408135:1-1052 ASSUMPTIONS AND LIMITING CONDITIONS 1. Any legal description provided to the appraiser/consultant is assumed to be correct. No responsibility is assumed for matters legal in character nor is any opinion rendered as to the quality of any title. 2. The appraiserlconsultant can neither guarantee nor be responsible for accuracy of information provided by others. 3. The appraiser/consultant shall not be required to give testimony or to attend court by reason of this appraisal unless subsequent written arrangements are made, including payment of an additional fee for services. 4. Loss or removal of any part of this report invalidates the entire appraisal/evaluation. 5. Possession of this report or a copy thereof does not imply right of publication or use for any purpose by any other than the person(s) to whom it is addressed without written consent of this appraiser/consultant. 6. This report and the values expressed herein represent the opinion of the appraiser/consultant, and the appraiser's/consultant's fee is in no way contingent upon the reporting of a specified value nor upon any finding to be reported. 7. Sketches, diagrams, graphs, photos, etc., in this report, being intended as visual aids, are not necessarily to scale and should not be construed as engineering reports or surveys. 8. This report has been made in conformity with acceptable appraisallevaluationldiagnostic reporting techniques and procedures, as recommended by the International Society of Arboriculture. 9. When applying any pesticide, fungicide, or herbicide, always follow label instructions. , a.No tree described in this report was climbed, unless otherwise stated. We cannot take responsibility for any defects which could only have been discovered by climbing. A full root collar inspection, consisting of excavating the soil around the tree to uncover the root collar and major buttress roots, was not performed, unless otherwise stated. We cannot take responsibility for any root defects which could only have been discovered by such an inspection. Ç.QNSUL TING ARBORIST DISCLOSURE STATEMENT Arborists are tree specialists who use their education, knowledge, training, and experience to examine trees, recommend measures to enhance the beauty and health of trees, and attempt to reduce risk of living near trees. Clients may choose to accept or disregard the recommendations of the arborist, or to seek additional advice. Arborists cannot detect every condition that could possibly lead to the structural failure of a tree. Trees are living organisms that fail in ways we do not fully understand. Conditions are often hidden within trees and below ground. Arborists cannot guarantee that a tree will be healthy or safe under all circumstances, or for a specified period of time. Likewise, remedial treatments, like medicine, cannot be guaranteed. Trees can be managed, but they cannot be controlled. To live near trees is to accept some degree of risk. The only way to eliminate all risk associated with trees is to eliminate. all trees. ~tlhJÙf ~ ~ òarrie D. Coate ISA Certified Arborist Horticultural Consultant 15 -176 EXHIBIT B Draft Final Report Calabazas Place Transportation Impact Analysis Prepared for: City of Cupertino Prepared by: Fehr & Peers December 2005 SJOS-795 ( S~/7Z. TABLE OF CONTENTS EXECUTIVE SUMMARY ............................................................................................................................................ I 1. INTRODUCTION ................................................................................................................................................. 1 2. EXISTING CONDITIONS .................................................................................................................................... 5 Roadway Network......................................................................·....·.·······························.·..········ ........................ 5 Existing Pedestrian and Bicycle Facilities ........................................................................................................... 6 Existing Transit Service. .............. .... ........... ..... ....... ..... .......................... ...... .... ......... ...... ..... ...... ..... ......... ........ ....6 Existing Intersection Volumes and Lane Configurations.....................................................................................9 Level of Service Methodology ............................................................................................................................. 9 Existing Intersection Levels of Service... .... ............ ..... .... ................. ............... ...... ......... .... ....... ........ ................ 13 Warrant Analysis...... ......... .... ..... ........... ...... ... .... ........ ............ ............... ...... ... ...... ..... ......... ..... ... ... ....... ...... ..... ... 15 Field Observations.......................................................................................·...·..····..··············.··· ....................... 16 3. BACKGROUND CONDITIONS........................................................................·...........·.................................... 17 Background Roadway Improvements ... ......... ... .... ..... .... ........ ... ......... .......... ...... ......... ..... .... ........... .... ..... ......... 17 Background Traffic Estimates........................................................·····················.········································· ..... 17 Background Intersection Levels of Service .......................................................................................................18 4. PROJECT CONDITIONS .................................................................................................................................. 23 Project Traffic Estimates.................................................................······..··············.····················..········· ............. 23 Project Intersection Levels of Service ............................................................................................................... 24 Vallco Parkway Operations ... .... ...... ..... ......... ........ ......... ...... .... ...... .......... .... ...... ........... .................... .... ...... ......25 I ntersection Impact Criteria.........................................................................···················..··························· ....... 25 Intersection Mitigation Measures.........................................................·..················.·········································· 35 Freeway Segment Analysis... .......... ..... ......... ........ .... ..... .... ............ ................ .... ...... ..... .... ..... ... ... ................. .... 35 Sim Traffic Analysis.................................................................··············.································..········· ................. 36 Site Access and On-Site Circulation... ............. ........ ............. .............. .... ...... ..... ......... .......... ....... ....... ...... ...... ... 37 Parking........................................................................................................................ ....................................... 38 Neighborhood Traffic..................................................................................·..···································· ................ 39 5. CUMULATIVE CONDITIONS ........................................................................................................................... 41 Cumulative Traffic Estimates................................................................·.·············.·....···················..············ ....... 41 Cumulative Intersection Levels of Service ........................................................................................................ 41 Cumulative Roadway Improvements..............................................................................·..································ 41 6. CONCLUSIONS ................................................................................................................................................49 APPENDICES Appendix A: Intersection Turning Movement Counts Appendix B: Traffix Level of Service Calculations Appendix C: Signal Warrant Worksheets and Crash Data Appendix D: Approved and Pending Developments IS-173 Figure 1 Figure 2 Figure 3 Figure 4 Figure 5a Figure 5b Figure 6a Figure 6b Figure 7 Figure 8a Figure 8b Figure 9a Figure 9b Figure 10a Figure 10b Figure 11 Figure 12 Figure 13 Figure 14a Figure 14b Figure 15a Figure 15b LIST OF FIGURES Site Location............................................................··.··········.············································ ................... 3 Site Plan..........................................................................········.·...·.······..·····················..····· .................. 4 Existing Bicycle Facilities. ........ ...... ........ ......... .... ..... .... ...... ...... ..... ..... ......... .... .............. ............. .... ......7 Existing Transit Routes.. ............. ... ........ .......... ........ ....... ...... .......... .... ..... .... ........ ......... ...... ........... ...... 8 Existing Peak Hour Volumes... ......... ......... ....... ..... .... ...... ...... ..... .... .............. .... ......... ..... .... ................ 10 Existing Peak Hour Volumes ........ ....... ...... ............ .... ........ .... ............... ......... ..... .... ......... ........ ........... 11 Background Peak Hour Volumes ....................................................................................................... 21 Background Peak Hour Volumes ... ........ ..... ............. ................ .... ..... .... ........... ............. ..... ......... ....... 22 Project Trip Distribution.... ..... ............ .............. ........ ..... ...... ...... ............. ........ .......... ..... ............ ..........26 Residential and Retail Project Trip Assignment ................................................................................. 27 Residential and Retail Project Trip Assignment...................................................·....·......····.............. 28 Net New Project Trip Assignment ......................................................................................................29 Net New Project Trip Assignment ......................................................................................................30 Project Peak Hour Volumes ............. ......... ......... ..... .......... ...... ......... ..... .... ......... ......... ..... ..................31 Project Peak Hour Volumes .......... ........ .......... ... ..... ............................... ..... .... ......... ......... ......... ........32 Project Operations on Wolfe Road (PM Peak Hour)....................................................·......··..·..·......· 32 Project Operations on Stevens Creek Boulevard (PM Peak Hour)...................................................· 32 Recommended Site Plan Changes.... ........ ................................. .... ..... .... ......... ......... ............ ............40 Cumulative No Project Peak Hour Volumes ......................................................................................42 Cumulative No Project Peak Hour Volumes ......................................................................................43 Cumulative Plus Project Peak Hour Volumes .................................................................................... 44 Cumulative Plus Project Peak Hour Volumes ....................................................................................45 IS -17'f Table ES-1 Table 1 Table 2 Table 3 Table 4 Table 5 Table 6 Table 7 Table 8 Table 9 Table 10 Table 11 LIST OF TABLES Intersection levels of Service Summary .............................. ..............................................................iii Signalized Intersection level of Service Definitions_Using Average Control Vehicular Delay.......... 12 Unsignalized I ntersection level of Service Definitions_Using Average Control Delay...................... 13 Existing Intersection levels of Service..............................................................................................14 Existing Office Trip Generation Rates and Estimates .......................................................................17 Background intersection Levels of Service .......................................................................................19 Project Trip Generation Rates and Estimates...................................................................................24 Background and Project Intersection Levels of Service.................................................................... 33 Freeway Segment Analysis .... ..... ......... ......... .... ...... ............... ................. .... ........... .... ..... ....... ........... 35 Project Parking Requirements and Supply........................................................................................39 Background and Cumulative Plus Project Intersection Levels of Service.........................................46 Cumulative Intersection levels of Service ........................................................................................48 J 5-/75 Drafi Fmal Galabazas Place riA December 2005 -- EXECUTIVE SUMMARY This report presents the results of the traffic impact analysis (TIA) for the proposed Calabazas Place residential and retail project. The proposed project includes construction of 108 townhomes, 261 condominiums, and 120,000 square feet of retail space. The project will also remove 150,000 s.f. of vacant office space. The project site, located in the eastern area of Cupertino, is generally bounded by Interstate 280 to the north, Stevens Creek Boulevard to the south, Tantau Avenue to the east and is located on both sides of Vallco Parkway and Finch Avenue. The impacts of the proposed project to the surrounding transportation system were evaluated following the guidelines of the City of Cupertino and the Valley Transportation Authority. The operations of twenty-one key intersections were evaluated with level of service calculations during the weekday morning (AM) and evening (PM) peak periods for Existing, Background, Project, Cumulative No Project, and Cumulative plus Project Conditions. PROJECT TRIP ESTIMATES With demolition of the existing 150,300 square feet of office space, the proposed retail and residential project is estimated to generate a net increase of 5,676 daily trips, a net increase of 12 AM peak-hour trips (133 fewer inbound/145 added outbound) and a net increase of 447 PM peak-hour trips (327 added inbound/120 added outbound) . ROADWAY OPERATIONS AND IMPACTS Intersections Table ES-1 presents the level of service results for all study intersections under Existing, Background, Project, and Cumulative Conditions. The intersection of Homestead Road and Lawrence Expressway and Vallco Parkway and Wolfe Road would operate at unacceptable levels during the PM peak hour for all future scenarios. The remaining intersections are projected to operate at LOS D or better during both peak hours under all scenarios. The proposed project would have a significant cumulative impact at Vallco Parkway and Wolfe Road. Restriping the westbound through lane on Vallco Parkway to provide a shared through/right-turn lane would improve the operations at this intersection to LOS D. The City is considering installing a roundabout at the intersection of Pruneridge Avenue and Tantau Avenue. This intersection was analyzed as a single-lane roundabout with Cumulative plus Project volumes. With this configuration. it is expected to operate at LOS A during both peak hours. Additional review of design parameters and other considerations are necessary to fully evaluate feasibility of a roundabout at this location. Roadways A traffic simulation model using SimTraffic software was developed for Stevens Creek Boulevard and Wolfe Road to determine the progression and queuing effects of the addition of proposed project traffic. The model was also used to evaluate the removai of one westbound travel lane adjacent to the curb to provide parallel on-street parking on Stevens Creek Boulevard between Tantau Avenue and Finch Avenue. The simulation shows there is good progression along Wolfe Road and Stevens Creek Boulevard with the exception of the eastbound left-turns on Stevens Creek Boulevard at Wolfe Road. However, the elimination of a through lane and installation of parallel on-street parking is not recommended unless it is part of a larger project to reduce through capacity or provide parking on a longer segment of Stevens Creek Boulevard. 11> FWR& I'rFRs '."'"~"";~~ ,."."u.,,[~ Is-nip Draft Fmal Calabazas Place TlA December 2005 -- The proposed project includes reducing Vallco Parkway from 6 to 2 ianes, and installing diagonal and parallel on- street parking. This two-lane roadway with parking has sufficient capacity (10,000 to 12,000 vehicles per day) to carry the estimated 7,000 vehicles per day under Project Conditions. With the proposed configuration, two all-way stop controlled intersections (at Finch Avenue and a project driveway) are projected to operate acceptably and excessive queuing is not anticipated. Also under Project Conditions, traffic volumes at the unsignalized Vallco Parkway and Finch Avenue intersection would not meet the minimum warrant criteria for signalization during either the AM or PM peak hours. Freeways The amount of traffic added to each segment is estimated to be less than one percent of the segment's capacity. Therefore, the project's impact on the freeway segments is considered less-than-si!¡nificant. SITE ACCESS AND ON-SITE CIRCULATION Access to the project site will be provided by driveways on Vallco Parkway, Stevens Creek Boulevard and Finch Avenue. These driveways provide more than adequate capacity for vehicles to enter and exit the project site. Access to the western residential units is provided by a right-turn only driveway on Vallco Parkway. The narrowed street width on Vallco Parkway would prohibit eastbound U-turns at Finch Avenue. It is recommended that a "No U-turn·' sign be installed at this intersection. PEDESTRIAN, BICYCLE AND TRANSIT IMPACTS It is recommended that a sidewalk be provided on the west side of Tantau Avenue between Vallco Parkway and Pruneridge Avenue including a raised sidewalk along the existing bridge over 1-280. Textured pedestrian crosswalks are recommended on Vallco Parkway at the new intersection west of Tantau Avenue. In addition, pedestrian countdown heads are recommended at the Stevens Creek Boulevard intersections with Finch and Tantau Avenues. Modifications to the bicycle lane striping on Vallco Parkway were recommended. With these changes, the project is estimated to have a less-than significant impact to the pedestrian and bicycle facilities. The project would not have a significant impact to the transit facilities since existing transit service is provided within one-quarter mile of the project site. PARKING According to the City"s Municipal Code, 1,271 parking spaces are required. The proposed on-site supply of 1,261 spaces does not meet the parking requirement. The project will provide sufficient parking for the residential uses. However, the retail and restaurant parking supply does not meet city parking requirements. Some of the on-street parking spaces on Vallco Parkway and Finch Avenue would be available for guests and restaurant and retail overflow parking. However, there will still be insufficient parking for the retail and restaurant uses. The project could implement either valet parking, off-site employee parking, reduce the project size, enter a shared-use agreement with Hewlett-Packard to use their parking lot during the evenings and weekends, or build the retail portion in phases with a parking monitoring program to ensure that adequate parking is provided. To accommodate demand and encourage non motorized transportation, the project shall provide 148 Class I bicycle spaces for the residential units and 24 Class II bicycle spaces for retail customers. SENIOR HOUSING ALTERNATIVE An alternative to the project that replaces 47 condominiums with 80 senior housing units was also studied. This alternative was estimated to generate 9 fewer AM and 4 fewer PM peak-hour trips than the propose<; project. The senior housing alternative would have similar traffic impacts as the proposed project. íi fþ CUIIl & PEERS '.....U.,."U. (o>lu"..n I 'j ~/11 , Draft Final Calabazas Place TlA December 2005 -- TABLE ES-' INTERSECTION LEVELS OF SERVICE SUMMARY Cumulative + Existing Background Project Project Peak ð.inCrlt. dinCrit. Intersections Hour Delay' lOS2 Delay' LOS2 Delay' LOS2 Delay' V/C4 Delay1 LOS2 1. Wolfe Road I AM 26.5 C 26.9 C 26.9 C -0.1 +0.003 27.2 C Homestead Road PM 43.0 0 46.7 0 47.2 0 +1.1 +0.020 48.1 0 2. Homestead Road I AM 19.7 B- 20.5 c+ 20.2 c+ -0.6 -0.012 20.2 c+ Tantau Avenue PM 19.8 B- 21.3 c+ 21.5 c+ +0.3 +0.011 22.1 c+ 3. Homestead Road I AM 42.7 0 47.3 0 47.S 0 +0.1 +0.000 48.0 0 Lawrence Expressway 6 PM 50.1 0 92.5 F F 93.7 +1.4 +0.003 98.6 F 4. Wolfe Road / AM 21.3 c+ 20.2 c+ 20.2 c+ -0.1 +0.007 21.2 c+ Pruneridge Avenue PM 32.5 c- 31.7 C 31.7 C +0.1 +0.012 32.5 c- S. Pruneridge Avenue I AM 21.1 c+ 21.3 c+ 21.3 c+ +0.1 +0.009 21.3 c+ Tantau Avenue PM 22.4 c+ 22.7 c+ 23.0 c+ +0.2 +0.004 21.8 c+ 6. Wolfe Road / 1-280 AM 12.4 B 12.8 B 12.8 B +0.1 +0.007 13.0 B Northbound Ramps6 PM 10.8 B+ 13.7 B 14.3 B +1.1 +0.024 15.7 B 7. Wolfe Road /1-280 AM 11.3 B+ 11.2 B+ 11.2 B+ +0.1 +0.014 11.2 B+ Southbound Ramps6 PM 10.3 B+ 11.0 B+ 11.5 B+ +0.7 +0.030 11.7 B+ 8. Wolfe Road / Valleo AM 13.6 B 19.1 B- 19.8 B- +0.3 +0.006 19.5 B- Parkway PM 28.1 C 60.0 E+ 65.5 E +2.4 +0.011 67.6 E 9. ValleD Parkway / Finch AM 10.6 B 11.8 B 8.3 A N/A N/A 8.3 A Avenue5 PM 10.3 B 13.5 B 11.2 B NIA NIA 11.3 B 10. ValleD Parkway I Tantau AM 8.9 A 11.9 B+ 12.1 B -7.6 +0.002 12.1 B Avenue PM 12.2 B 17.2 B 16.9 B -0.6 -0.026 16.9 B 11. Stevens Creek AM 30.9 C 32.9 c- 33.0 c- +0.3 +0.003 33.5 c- Boulevard / De Anza PM 34.9 c- 38.8 0+ 39.1 0 +0.3 +0.003 39.7 0 Boulevards 12. Stevens Creek AM 18.1 B- 18.0 B· 18.0 B -0.1 +0.005 18.0 B Boulevard I Blaney PM 29.4 C 29.1 C 28.9 C -0.1 +0.011 29.5 C Avenue 13. Stevens Creek AM 10.5 B+ 10.9 B+ 10.8 B+ +0.0 +0.005 10.8 B+ Boulevard / Portal PM 16.0 B 14.6 B 14.4 B -0.2 +0.011 14.5 B Avenue 14. Stevens Creek AM 8.1 A 8.3 A 8.3 A +0.0 +0.004 8.5 A Boulevard / Perimeter PM 15.7 B 16.1 B 15.9 B -0.2 +0.011 15.9 B Road 15. Stevens Creek AM 35.7 0+ 37.0 0+ 37.0 0+ +0.0 +0.006 37.3 0+ Boulevard I Wolfe Road· PM 37.8 0+ 42.9 0+ 43.9 0 +1.0 +0.016 45.5 0 Miller Avenue6 16. Stevens Creek AM 30.5 C 30.4 C 30.4 C +0.4 +0.026 30.5 C Boulevard / Finch PM 17.4 B 17.0 B 21.3 c+ +6.5 +0.252 20.3 c+ Avenue 17. Stevens Creek AM 19.4 B- 19.4 B- 19.5 B- ·0.0 +0.013 19.6 B- Boulevard / T ant au PM 19.6 B- 20.6 c+ 19.6 B- -0.9 +0.002 , 19.6 B- Avenue fþ Hi FEHR&PEEltS r~".H~""TlO. (0.'"""." I S -/lit Draft Fmal Calabazas Place TIA December 2005 .......... TABLE ES-1 (CONTINUED) INTERSECTION LEVELS OF SERVICE SUMMARY Cumulative + Existing Background Project Project Peak ålnCrit. ålnCrit. Intersections Hour Delay' LOS1 Delay' LOS' Delay1 LOS' Delay:! VfC4 Delay' LOS' 18. Stevens Creek AM 32.9 c- 34.1 c- 33.5 c- +1.1 +0.020 33.8 c- Boulevard /1-280 Ramps PM 42.0 0 46.1 0 46.5 D +2.1 +0.011 49.2 D 19. Stevens Creek AM 22.5 c+ 22.0 C+ "., C+ +0.0 -0.009 23.9 C Boulevard / Lawrence PM 25.9 C 26.7 C 26.4 C +0.1 +0.017 28.4 C Expressway (W)6 20. Stevens Creek AM 35.0 D+ 37.7 D+ 37.4 D+ -0.2 -0.010 37.6 D+ Boulevard / Lawrence PM 36.6 D+ 39.2 D 40.0 D +0.9 +0.019 41.3 D Expressway (E)6 21. Bollinger Road / Tantau AM 10.7 B+ 10.6 A 10.7 B+ +0.1 +0.001 10.7 B+ Avenue PM 10.2 B+ 10.0 A 10.1 B+ +0.1 +0.006 10.1 8+ Notes: 1 \N11ole intersection weighted average stopped delay expressed in seconds per vehicle for signalized intersections. 2 LOS calculations performed using the 2000 Highway Capacity Manual (HCM) methodology. 3 Change in average critical movement delay between Background and Project Conditions. 4 Change in critical volume to capacity ratio between Background and Project Conditions. S Control delay, expressed in seconds per vehicle, is presented for the worst movement/approach for the unsignalized intersection. 6 Designated CMP intersection Significant impacts are highlighted in bold. iv fþ FEHR & PEERS 'I..\H'''''¡~. ...'u,,,"¡\ 15 -111 Draft Final Calabazas Place TIA December 2005 -- 1. INTRODUCTION This report presents the results of the traffic impact analysis (TIA) for the proposed Calabazas Place residential and retail project. The proposed project includes construction of 108 townhomes, 261 condominiums, and 120,000 square feet of retail space. The project will also remove 150,000 s.f. of vacant office space. The project site, located in the eastern area of Cupertino, is generally bounded by Interstate 280 to the north, Stevens Creek Boulevard to the south, Tantau Avenue to the east and is located on both sides of Vallco Parkway and Finch Avenue. The purpose of the analysis Is to Identify potential transportation impacts of the proposed deveiopment on the surrounding roadway system, and recommend appropriate improvements to mitigate these significant impacts. A map of the project site location is presented in Figure 1. Figure 2 shows the conceptual plan of the proposed project with access to the site from Vallco Parkway, Finch Avenue and Tantau Avenue. Existing and future conditions were evaluated with level of service calculations for the key intersections near the project site. Project impacts were estimated following the guidelines of the City of Cupertino and the Santa Clara Valley Transportation Authority (VTA), which is the congestion management agency for Santa Clara County. The analysis evaluated the operations of the following key intersections: 1. Homestead Road and Wolfe Road 2. Homestead Road and Tantau Avenue 3. Homestead Road and Lawrence Expressway' 4. Wolfe Road and Pruneridge Avenue 5. Pruneridge Avenue and Tantau Avenue 6. Wolfe Road and 1-280 Northbound Ramps' 7. Wolfe Road and 1-280 Southbound Ramps' 8. Wolfe Road and Vallco Parkway 9. Vallco Parkway and Finch Avenue 10. Vallco Parkway and Tantau Avenue 11. Stevens Creek Boulevard and De Anza Boulevard' 12. Stevens Creek Boulevard and Blaney Avenue 13. Stevens Creek Boulevard and Portal Avenue 14. Stevens Creek Boulevard and Perimeter Road 15. Stevens Creek Boulevard and Wolfe Road/Miller Avenue' 16. Stevens Creek Boulevard and Finch Avenue 17. Stevens Creek Boulevard and Tantau Avenue 18. Stevens Creek Boulevard and 1-280 Ramps 19. Stevens Creek Boulevard and Lawrence Expressway (W)' 20. Stevens Creek Boulevard and Lawrence Expressway (E)' 1 fp FFHR & rEFitS tU"'~O."~jt". ,n'~'tut;' IS _/¡ò Draft Fmal Calabazas Place rIA December 2005 -- 21. Bollinger Road and Tantau Avenue . Designated CMP Intersection The operations of the study intersections were evaluated during the weekday morning (AM) and evening (PM) peak periods. Each intersection was evaluated for the following four scenarios: Scenario 3: Existing Conditions - Existing volumes obtained from counts, representing peak one-hour conditions during the morning and evening commute peak traffic periods. Background Conditions - Existing volumes plus traffic from approved but not yet constructed and occupied developments near the project site. This scenario assumes full occupancy of the vacant building on the site. Project Conditions - Background plus project trips from the proposed residential development. Cumulative No Project Conditions - Traffic from pending developments in the area will be added to the volumes from Scenario 2. Scenario 1: Scenario 2: Scenario 4: Scenario 5: Cumuiative plus Project Conditions -Project-generated traffic added to Scenario 4 traffic voiumes. The remainder of this report is divided into five chapters. The existing transportation system serving the site and the current operating conditions of the key intersections are described in Chapter 2. Chapter 3 evaluates traffic operations under Background Conditions for approved but not yet constructed local developments and occupancy of the office on the project site. Chapter 4 describes the method used to estimate the amount of traffic added to the surrounding roadways by the proposed project and its impacts on the transportation system under Project Conditions. This chapter also includes a discussion of site access, on-site circulation, and parking. Cumulative Conditions is described in Chapter 5. Finally, Chapter 6 presents the study results and conclusions. fþ 2 F¡;HR & PEERS 'fU~'~C",M·:~. ,n.~'U." 15~/'3J c .2 c 13 g Z ~ œ ~ ~ 0 W ~ 0 LU ~ a: .E -' -' :::J >- 13 <0 « CI u œ 0 U ¡¡: ~ "ë z en iñ Q. 0 9 l- I- 0 0 W z ot3 z !:: w CI en LU ..J X;¡:;>:JU;;>JME'l ";;>^'VOE'WE'l ~ ~ ~ 2 . ~ o r "f'";!!;;>!IOM "':J^VJ;;>il'l"I ~ · i -, · "';;1 ~ ;¡; o ·~J::;>1.H.u'J;;>d . '-;}^V Ie+'0d ~ ~ . u u Ò . o ! u .ñ ! z / ~ , ~ , ~ · · "::;IIIV :¡;JutlQ 'P^IQ ewv;;>o VJ~ ¡:¿:; . µ..¡= µ..¡~ p...~ B c.(j 0 z . o u, ::: ~.}¡ . 0 ~.....oniil ¡...¡.. "" g/ ::r: ~ ~ i µ..¡ z ='0 ~ >,t ~....~~ · o o · o .3 15'1"'62. Z'" w :s ~ -' a. CJ ~ W ii: <0 Z 0 !::: t- !J t- O Z >.0 :~V_~_ , 1 , i I . /7 j " ;n 'Æ !'I ~ ~i' ~ , \ · ~ g Ö¡ · ~I ~ ¡; o ~ .I ~ , .'1 ! l1 i f , I ¡; I) Ii ~ i: I ,: , ! i ,-. -"'~-'- , ,. il L t· ] C_L.,,~ 1 i: ¡ . ~ Z / ~ ~ i ¡ (,,;'j~ ii: c:G~ µ.J ~ <J I-U ~ ~ ~~ ð u " · _...J;; ~'ì I...().... ~O() " 0 < "~ ~~~'f :r: ~ ..:.~ . ' c µ.J:; ~~ ~.....zz /5 ~I ð3 Draft Fmal Calabazas Place TfA December 2005 -- 2. EXISTING CONDITIONS This chapter describes the existing conditions of the roadway facilities, pedestrian and bicycle facilities, transit service, traffic volumes, and intersection operations. This chapter also includes a discussion of the methodology used to calculate intersection levels of service and the corresponding results. ROADWAY NETWORK The project site location and the surrounding roadway network are presented on Figure 1. Regional access is provided by Interstate-280 (1-280), Lawrence Expressway. Wolfe Road, and Homestead Road. Local access is provided by Pruneridge. Tantau, and Finch Avenues. Descriptions of these roadways are provided below. 1-280 is a north-south, eight-lane freeway with one lane in each direction designated as a high occupancy vehicle (HOV) lane. HOV lanes, also known as diamond lanes or carpool lanes, are restricted for use by vehicles occupied by two or more persons or motorcycles between 5:00 am and 9:00 am and between 3:00 pm and 7:00 pm. HOVs include carpools, vanpools, and buses. The freeway extends from San Francisco, in the north, to San Jose, in the south. In the vicinity of the site, 1-280 runs in a northwest to southeast direction and is located north of the site. Access from 1-280 to the project site is provided via its interchanges at Wolfe Road and at Stevens Creek Boulevard. Ramp metering is utilized on both northbound and southbound on-ramps during peak periods. Lawrence Expressway is a limited-access facility operated by Santa Clara County. It is a six-lane facility south of 1-280. North of 1-280, Lawrence Expressway is primarily an eight-lane facility with the right lane in each direction restricted to HOVs only during the commute hours. Access to Lawrence Expressway from the site is provided by Stevens Creek Boulevard, Pruneridge Avenue, and Homestead Road. Stevens Creek Boulevard is a six-lane, east-west divided arterial forming the southern boundary of the project site. It extends from the western boundary of Cupertino into San Jose to the east. Stevens Creek Boulevard is primarily fronted by commercial land uses, including retail, restaurant, and office uses in the vicinity of the site. Wolfe Road is a four-to-six-Iane, north-south arterial located west of the project site. South of Stevens Creek Boulevard, this street is known as Miller Avenue. Homestead Road is a four-lane, east-west arterial north of the project site. It extends east from Cupertino into Santa Clara. Pruneridge Avenue is a four-lane, east-west arterial located north of the project site. Pruneridge Avenue extends east from Wolfe Road to San Jose. Tan/au Avenue is a four-lane, north-south roadway located east of the project site. Tantau Avenue extends from Homestead Road to Bollinger Road. Through movements across Stevens Creek Boulevard are restricted by medians. Finch Avenue is a two-lane north-south roadway extending south from Vallco Parkway to Phil Lane. Through movements across Stevens Creek Boulevard are restricted by medians. fp 5 F HIR & PEERS '..~,,~..~,¡~.. ~~"'UUUf~ /5 ~¡¡N Draft Fmal Calabazas Place TlA December 2005 --- EXISTING PEDESTRIAN AND BICYCLE FACILITIES Pedestrian facilities comprise sidewalks and pedestrian signals at signalized intersections. Sidewalks are generally provided on both sides on Wolfe Road, Vall co Parkway, Finch Avenue, and Tantau Avenue in the vicinity of the project site. All of the signalized intersections in the area are equipped with pedestrian signals. Bicycle facilities comprise bike paths, bike ianes, and bike routes. Bike paths are paved pathways for use by bicycles that are separated from roadways. Bike ianes are lanes on roadways designated for use by bicycles with special lane markings, pavement iegends, and signage. Bike routes are designated with signs only. Bike lanes are provided on Wolfe Road and Tantau Avenue near the site. Miller Avenue and Pruneridge Avenue east of Tantau Avenue is designated a bike route. Bicycles are permitted on Lawrence Expressway but no special signing or striping designations are provided. Existing bicycle facilities are shown on Figure 3. EXISTING TRANSIT SERVICE The Santa Clara Valley Transportation Authority (VTA) operates bus service in Santa Clara County. Figure 4 shows the existing transit facilities near the project site. Route 23 is a local bus route that provides service between Downtown San Jose and the San Antonio Shopping Center via Stevens Creek Boulevard near the site. The hours of operation are from 5:00 am to 12:30 am with 15- to 60-minute headways on weekdays. On weekends, this route operates on 15- to 60-minute headways between 6:00 am and 12:00 am. Route 26 is a iocal bus röute that provides service between East San Jose and Sunnyvale. Weekday hours of operation are from 6:00 am to 10:00 pm with 20- to 60-minute headways. Weekend operations are provided on 30- to 60-minute headways between 7:00 am and 9:30 pm. This route operates on Wolfe Road west of the site. Route 36 is a local bus route that provides commute service between East San Jose and Vallco Fashion Park. Weekday hours of operation are from 6:00 am to 9:00 am and from 3:00 pm to 7:00 pm with 60-minute headways. This route does not provide service to the study area on weekends. This route operates on Wolfe Road, Vallco Parkway, and Pruneridge Avenue near the site. Route 51 is a local bus route between Vallco Fashion Park and Mountain View. The hours of operation are from 6:00 am to 7:00 pm with 30- to 60-minute headways. Saturday operations are provided on 60-minute headways between 9:00 am and 7:00 pm. This route operates on Wolfe Road, Vallco Parkway, and Homestead Road near the site. Route 81 is a local bus route between East San Jose and Vallco Fashion Park. The hours of operation are 5:00 am to 11 :00 pm on weekdays with 30- to 60-minute headways. This route operates on 60-minute headways between 8:00 am and 9:00 pm on Saturdays and Sundays. Route 81 operates on Wolfe Road, Pruneridge Avenue, and Tantau Avenue near the project site. Route 101 is an express bus route between the Park-n-Ride lot at Camden Avenue I State Route 85 and Palo Alto. This route operates northbound between 5:45 am and 8:30 am, and southbound between 3:30 pm and 7:00 pm with 30-minute headways. This route does not operate on weekends. Route 101 operates on Wolfe Road and 1-280 near the project site. Route 103 is an express bus route between East San Jose and Palo Alto. This route operates westbound between 5:00 am and 8:30 am, and eastbound between 2:30 pm and 6:30 pm with 45-minute headways. This route does not operate on weekends. Route 103 operates on 1-280 near the project site. fì> FElIR & PEERS '..~,~~,,~,,~. ,uw\!n,.. 6 I, -1'85 I I I (J '" w w ¡:: II: ::;) ::¡ C 0 ¡¡: « u.. w ~ IIJ G z ¡:: (J X I -", W I ~ I , I c u .Q ~ " E ." u ~ E 0 c 0 ~ -' j 0 Õ a: 0- ~ ~ ~ ~ ~ ~ ~ " ¡;¡ ¡;¡ ¡;¡ à: 0 I I I t3 z - w I - (!J I w -' , , 1_11_11 '9 :>:;IUÕ>JMel I , , IJ I I I I ·""v~~uel -~ !!!oo. ;j . I J ~ " ~ ~ c ----- .. P'::!i:.J/lOM ---- ·"'^VJ"II'~ P<!I J"~"IJJ'J"d ·""''It'1J°d ~ ~ · 1 e · .., ~ <¡; ~ o > o Z / ð , ~ e o ~ < "J^V'¡;õ>uelg . , u " ¡ . ~ ·P^IQ I!'ZU\;I"a @ z w -' t3 <J) ¡2 b z · o o D o Õ u 0z ~ o u, ;: ~..; . 0 ~.....<oiil ..... "" 8/ ON.!!! :c ~ . ~ ",:z ::f -. . rr_"" ¡;-:-:- _~ZZ V> ~ ~~ . µ..¡~ µ"¡O o...~ 15-/3tp ~ III '" '5 0 W w ~ a: w I- a: c ~ ~ 0 -' ::> 0 0 ~ 1\ :::I C) ~ ~ a: '" (0 0 0 0 0. V) ¡¡: 0 a: ~ 0 z a: 0 0 '" Ci5 0 -' ~ 0. .... Õ '" 0 " .9 .... I- 0 ~ " ~ ~ V) 0 ¡¡; 'e c. ~ z 0 E 0 0 X ~ Z .. -' W ::¡ '" <I: 0 a: ~ I- z ®<@ w ® EI CJ CJ w Z -' ¡:: III X W EI '1M X;;¡ :;J?U:;IJME1 .., N N EI EI N EI .,; > ¡¡j ~ .. ':;IN'r/ ne:¡.ue 1 ~ " . " ~ < " E o r: '~d!\°M ! - "ê , J o it :;; o '" N EI .., N > o Z / 3 '5 " , o ~ o ö: " o o . o Õ u c.ð~u~ " ". < 0 ç¿:; 20- 00" ::r:... N ü w~;:'f < " µ... ~ ~i" ~ "' 'P2I J;;¡:¡,;;,w J:;Jd ';'^'<I ¡e:µod V> . <:G" < µ.¡: µ.¡' p...~ ';M'Tj A:dUelg 15"~/'97 Draft Fmal Ca/abazas Place T/A Decembe, 2005 -- Route 182 is an express bus route between Palo Alto and the IBM facility on Bailey Avenue. This route operates two southbound buses between 7:00 am and 8:30 am, and two northbound buses between 4:45 pm and 6:30 pm with 30- to 45-minute headways. This route does not operate on weekends. Route 182 operates on Vallco Parkway, Wolfe Road. and 1-280 near the project site. Route 328 is a limited bus route from Almaden Expressway and Camden to the Lockheed Martin/Moffett Field transit center. Only on weekdays, this route operates once northbound between 6:00 am and 7:00 am, and once southbound between 5:00 pm and 6:00 pm. Route 328 operates on Lawrence Expressway near the project site. EXISTING INTERSECTION VOLUMES AND LANE CONFIGURATIONS The operations of the key intersections were evaluated during weekday morning (AM) and evening (PM) peak- peak-hour conditions. Per city guidelines, the AM and PM peak periods occur from 7:00 am to 9:00 am and 5:00 pm to 7:00 pm, respectively. Intersection operations were evaluated for the highest one-hour volume counted during each period. New traffic counts were conducted at all of the study intersections during the AM and PM peak periods in August and September 2005 (see Appendix A). At the time of the counts, the driveway opposite Perimeter Road on Stevens Creek Boulevard was closed due to the construction at the Marketplace development. Therefore, Year 2000 counts at the Stevens Creek Boulevard and Perimeter Road were used for the analysis. Figure 5 presents the existing AM and PM peak-hour turning movement volumes at the study intersections. Existing intersection lane configurations and traffic control devices are also shown on Figure 5. LEVEL OF SERVICE METHODOLOGY The operations of roadway facilities are described with the term level of service. Level of Service (LOS) is a qualitative description of traffic flow based on such factors as speed, travel time, delay, and freedom to maneuver. Six levels are defined from LOS A, as the best operating conditions, to LOS F, or the worst operating conditions. LOS E represents "at-capacity" operations. When volumes exceed capacity, stop-and-go conditions result, and operations are designated as LOS F. Signalized Intersections The level of service methodology approved by the City of Cupertino and the VTA analyzes a signalized intersection·s operation based on average control vehicular delay calculated using the method described in Chapter 16 of the 2000 Highway Capacity Manual (HCM) (Special Report 209, Transportation Research Board) with adjusted saturation flow rates to reflect conditions in Santa Clara County. Control delay includes initial deceleration delay, queue move-up time, stopped delay, and final acceleration delay. 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O>~ ~'" ~~ ! _,0_ ~ON ~"'N --- ~~- ~:::f:: JIHl +IO.\Lg (6S 9U (9£ 09 196') H dJ lHlr Il"I,." r --~~ ~ (')--co ! cn~(\ ! en I en .J:J W(/)Z '" :¡¡ZO ~ 30¡:: 8 o!d:õ ¡¡: >a:Z U:JO -ClU 11.._ u..u..CI e(zz a:o- l-ulñ a:wx :Jzw ~5 ~c e(z We( Q. i , ~ ~ ¡; o > o Z / ¡¡ ~ i , 1 " V) c:G '"' 0 µ.¡ ~ ~o 8 cZ z ~ o ~' ;:: ~ J, < ~ ~f--"'(II ~~f :r::::; ..:.[ µ..¡:Z ~ E fr _~ ð~ _...zz I 5 -/1Ó Draft Fmal Calabazas Place TfA Decembel 2005 - TABLE 1 SIGNALIZED INTERSECTION LEVEL OF SERVICE DEFINITIONS . USING AVERAGE CONTROL VEHICULAR DELAY Average Control Delay per Vehicle Level of Service Description (Seconds) A Operations with very low delay occurring with favorable ~ 10.0 progression and/or short cycle lengths. B+ Operations with low delay occurring with good progression and/or 10.1 to 12.0 B short cycle lengths. 12.1 to 18.0 B- 18.1 to 20.0 C+ Operations with average delays resulting from fair progression 20.1 to 23.0 C and/or longer cycle lengths. Individual cycle failures begin to 23.1 to 32.0 C- appear. 32.1 to 35.0 D+ Operations with longer delays due to a combination of 35.1 to 39.0 D unfavorable progression, long cycle lengths, and high V/C ratios. 39.1 t051.0 D- Many vehicles stop and individual cycle failures are noticeable. 51.1 to 55.0 E+ Operations with high delay values indicating poor progression, 55.1 to 60.0 E long cycle lengths, and high V/C ratios. Individual cycle failures 60.1 to 75.0 E- are frequent occurrences. 75.1 to 80.0 F Operations with delays unacceptable to most drivers occurring >80.0 due to over-saturation, poor progression, or very long cycle lengths. Source: VTA's CMP Traffic Level of Service Analysis Guidelines, June 2003, and Tra:nsportation Research Board, Highway Capacity Manual,2000. The level of service standard (Le., minimum acceptable operations) for all of the signalized study intersections in the City of Cupertino is LOS D except at two locations. According to the City's General Plan, the Stevens Creek Boulevard/De Anza Boulevard and the De Anza Boulevard/Bollinger Road intersections must maintain LOS E+ operations (with no more than 60 seconds weighted average control delay). The same operations methodology is used by the Valley Transportation Authority (VTA) to analyze traffic impacts for Congestion Management Program (CMP) facilities. The level of service standard for CMP-designated intersections is LOS E. However, in Cupertino, the City's thresholds are used to identify intersection impacts. The City of Santa Ciara level of service standard is LOS D for local signalized intersections and LOS E for designated CMP intersections. Four of the study intersections are located in the City of Santa Clara: Homestead Road and Lawrence Expressway, Stevens Creek Boulevard and 1-280 ramps, Stevens Creek Boulevard and Lawrence Expressway (W) and Stevens Creek Boulevard and Lawrence Expressway (E). f1> FI'HR & PEERS 'U"\'~H~q~.· .~..."u...!~ 12 IS~/91 Draft Fmal Calabazas Place TlA December 2005 -- Unsignalized Intersections Operations of the unsignalized study intersection of Vallco Parkway and Finch Avenue were evaluated using the methodology contained in Chapter 17 of the 2000 HCM. Level of Service ratings, for stop-sign controlled intersections, are based on the average control delay expressed in seconds per vehicle. At two-way or side street-controlled intersections, the control delay is calculated for each movement, not for the intersection as a whole. For approaches composed of a single lane. the control delay is computed as the average of all movements in that lane. For all-way stop-controlled iocations, a weighted average delay for the entire intersection is presented. Table 2 summarizes the relationship between delay and LOS for un signalized intersections. LOS D is the minimum acceptable level of service for unsignalízed intersections. TABLE 2 UNSIGNALlZED INTERSECTION LEVEL OF SERVICE DEFINITIONS USING AVERAGE CONTROL DELAY Average Control Delay per Vehicle Level of Service Description (Seconds) A Little or no delay s 10.0 B Short traffic delays 10.1 to 15.0 C Average traffic delays 15.1 to 25.0 D Long traffic delays 25.1 to 35.0 E Very long traffic delays 35.1 to 50.0 F Extreme traffic delays with intersection capacity exceeded > 50.0 Source: Highway Capacity Manual. Transportation Research Board. 2000. EXISTING INTERSECTION LEVELS OF SERVICE Existing intersection lane configurations and peak-hour turning movement volumes were used to calculate the levels of service for the key intersections during each peak hour. The results of the LOS analysis for Existing Conditions are presented in Table 3. The corresponding calculation sheets are contained in Appendix B. The results of the LOS calculations indicate that all study intersections currently operate at acceptable levels of service (LOS D or better). fþ FH" & PEERS !£u..~..~qGa N'MOUHI' 13 /5-I'IZ Draft Fmal Calabazas Place TIA Decembe, 2005 -- TABLE 3 EXISTING INTERSECTION LEVELS OF SERVICE Intersection Intersection Peak Hour1 Count Date Control Delay' LOS' 1. Wolfe Road / Homestead Road AM 08/05 Signal 26.5 C PM 08/05 43.0 D 2. Homestead Road I Tantau Avenue AM 09/05 Signal 19.7 B- PM 09/05 19.8 B- 3. Homestead Road I Lawrence Expresswal AM 09/05 Signa; 42.7 D PM 10/04 50.1 D 4. Wolfe Road I Prune ridge Avenue AM 08/05 Signal 21.3 C+ PM 08/05 32.5 C- 5. Prune ridge Avenue I Tantau Avenue AM 09/05 Signal 21.1 C+ PM 09/05 22.4 C+ 6. Wolfe Road /1-280 Northbound Ramps' AM 08/05 Si9nal 12.4 B PM 08/05 10.8 B+ 7. Wolfe Road /1-280 Southbound Ramps' AM 08/05 Signal 11.3 B+ PM 08/05 10.3 B+ 8. Wolfe Road / Vallco Parkway AM 08/05 Signal 13.6 B PM 08/05 28.1 C 9Vallco Parkway / Finch Avenue AM 08/05 Side-Street Stop 10.6 B PM 08/05 Control 10.3 B 10Vallco Parkway /Tantau Avenue AM 08/05 Signal 8.9 A PM 08/05 12.2 B 11. Stevens Creek Boulevard and De Anza AM 08/05 Signa; 30.9 C Boulevard4 PM 10/04 34.9 C- 12. Stevens Creek Boulevard I Blaney Avenue AM 09/05 Signal 18.1 B- PM 09/05 29.4 C 13. Stevens Creek Boulevard I Portal Avenue AM 09/05 Signal 10.5 B+ PM 08/05 16.0 B 14. Stevens Creek Boulevard / Perimeter Road AM 01/00 Signal 8.1 A PM 01/00 . 15.7 B 15. Stevens Creek Boulevard / Wolfe Road-Miller AM 08/05 Signal 35.7 D+ Avenue4 PM 08/05 37.8 D+ 16. Stevens Creek Boulevard I Finch Avenue AM 08/05 Signal 30.5 C PM 08/05· 17.4 B 17. Stevens Creek Boulevard I Tantau Avenue AM 08/05 Signal 19.4 B- PM 08/05 19.6 B- fþ FHIR & PrERs 'U"..q"~,!~~ .U\"",...u 14 15 ~/r 3 Draft Fmal Calabazas Place TlA December 2005 - TABLE 3 (CONTINUED) EXISTING INTERSECTION LEVELS OF SERVICE Intersection Intersection Peak Hour1 Count Date Control Delay' LOS' 18. Stevens Creek Boulevard /1-280 Ramps AM 09/05 Si9nal 32.9 C- PM 09/05 42.0 D 19. Stevens Creek Boulevard I Lawrence AM 09/05 Signal 22.5 C+ Expressway (W) 4 PM 09/04 25.9 C 20. Stevens Creek Boulevard I Lawrence AM 09/05 Signal 35.0 D+ Expressway (E) 4 PM 09/04 36.6 D+ 21. Bollinger Road I Tantau Avenue AM 09/05 Signal 10.7 B+ PM 09/05 10.2 B+ Notes: 1 AM = morning peak-hour, PM = evening peak-hour. 2 1Nh0le intersection weighted average control delay expressed in seconds per vehicle for signalized and all-way stop intersections using methodology described in the 2000 Highway Capacity Manual, with adjusted saturation flow rates to reflect Santa Clara County Conditions. For two-way stop controlled unsignaJized intersections, total control delay for the worst movement, expressed in seconds per vehide, is presented. LOS calculations conducted using the TRAFFIX level of service analysis software package. 3 LOS = Level of service 4 Designated CMP intersection. WARRANT ANALYSIS The signal warrant analysis was conducted for the unsignaiized Vallco Parkway and Finch Avenue study intersection. This analysis applied the traffic signal warrants recommended in the Federal Highway Administration Manual on Uniform Traffic Control Devices (2003) and associated State guidelines. None of these warrants were met. The worksheets for warrants 1. 2 and 3, and crash data are included in Appendix C. The warrant analysis is summarized below. Warrant 1 - Eight-Hour Vehicular Volume. The machine counts were used to analyze this warrant. This warrant was not met because there was not a large volume of intersecting traffic for any eight-hours of an average day. Neither the 80% nor 100% minimum vehicular volume warrants were met. Warrant 2 - Four-Hour Vehicular Volume. This warrant was not met because there was not a large volume of intersecting traffic for any four-hours of an average day. Warrant 3 - Peak-Hour Vehicular Volume. This warrant was not met because the minor street traffic did not suffer from undue delay during the peak hour when crossing or entering the major street. Warrant 4 - Pedestrian Volume. This warrant was not met because a minimum of 190 pedestrians did not cross the major street during the peak-hour. Pedestrian counts were conducted during the AM and PM peak periods. The results of these counts show that a maximum of 5 pedestrians crossed this intersection during the AM peak hour. This warrant needs to satisfy two criteria; therefore, the remaining criteria were not considered. Warrant 5 - School Crossing. This warrant was not applicable because the Vallco Parkway and Finch Avenue intersection is not near a school. fþ 15 FfHR & PEERS 'H~I'UtM ~. '·U.~CU." / ~-I'ff Draft Fmaf Cafabazas Place TfA December 2005 . -- Warrant 6 - Coordinated Signal System. This warrant is not met because the adjacent traffic control signals - Stevens Creek Boulevard I Finch Avenue is -850 ft, Vallco Parkway I Wolfe Road is -1,280 ft, and Vallco Parkway I Tantau Avenue is -1,065 ft - are close enough to provide sufficient progression. Warrant 7 - Crash Experience. This warrant is not met because the frequency of crashes correctable by a traffic signal at this location is less than the minimum five accidents within a 12-month period. Only one accident occurred in 2004. This warrant needs to satisfy three criteria; therefore, the remaining criteria were not considered. Warrant 8 - Roadway Network. This warrant is not met because neither street is considered a major route. For this warrant to be satisfied, a minimum of 1,000 vehicles per hour must be entering the intersection of two or more major routes. In conclusion, this intersection does not meet any of the MUTCD warrants for traffic signal installation. A multi-way stop warrant analysis was also conducted for the Vallco Parkway and Finch Avenue intersection. Based on the current daily volumes and accident data, all-way stop controi is not warranted at this intersection. FIELD OBSERVATIONS Field observations of the study intersections were conducted during the morning and evening peak hours in September 2005. The intersections were generally observed to operate at the calculated ievels of service for each peak period. No significant congestion was noted on Wolfe Road, Vallco Parkway, Pruneridge Avenue and Tantau Avenue. During field observations the following lanes were closed for construction: · The eastbound through lane adjacent to the median on Stevens Creek Boulevard was closed between Wolfe Road and Finch Avenue but, the left turn pocket remained accessible. · The westbound through lane adjacent to the median on Stevens Creek Boulevard was closed between Finch Avenue and Wolfe Road but, the left turn pocket remained accessible. · The northbound driveway for the shopping center at Perimeter Road and Stevens Creek Boulevard was closed for construction. The lane closures near Wolfe Road and Stevens Creek Boulevard did not adversely influence intersection operations. The remaining two lanes in each direction on Stevens Creek Boulevard did not queue back through adjacent intersection to affect operations between Finch Avenue and Perimeter Road. During the closure of the northbound approach at the Perimeter Road and Stevens Creek Boulevard intersection, motor vehicles used the alternate shopping center access of Stevens Creek Boulevard and Portal Avenue. During the PM peak hour, the general travel pattern is eastbound on Stevens Creek Boulevard and 1-280, and southbound on Wolfe Road and Lawrence Expressway. Congestion was observed near Stevens Creek Boulevard. 1-280 and Lawrence Expressway. The vehicles using the westbound left turn pocket and making an eastbound right turn to access southbound 1-280 (Calvert Drive) from Stevens Creek Boulevard blocked the westbound through lane adjacent to the median and eastbound through lane adjacent to the curb, respectively. During this time period, the on-ramps to southbound 1-280 backed up with substantial queues, but none of the queues interfered with surface street operations. There was also extensive queuing along Stevens Creek Boulevard between the Lawrence Expressway and 1-280 ramp intersections. The queuing did not affect signal operations however. Slowing due to weaving was also observed along westbound Stevens Creek Boulevard between the southbound Lawrence Expressway off-ramp and the northbound 1-280 on-ramp. fþ FEI'" & PEl itS '''~..q''M¡Uft·,q,..""U'' 16 /5-1'15 Draft Final Calabazas Place TlA December 2005 ~ 3. BACKGROUND CONDITIONS This chapter discusses the operations of the key intersections under Background Conditions. Background Conditions are defined as conditions prior to completion of the proposed development and serve as the basis to identify project impacts. Traffic volumes for Background Conditions comprise existing volumes plus traffic generated by approved developments in the area including occupancy of the existing office building on the project site. The results of the level of service analysis for Background Conditions are presented in this chapter. BACKGROUND ROADWAY IMPROVEMENTS Prior to project completion, no future roadway improvements will be constructed at the study intersections. Thus existing intersection lane configurations were used for the Background Conditions analysis. BACKGROUND TRAFFIC ESTIMATES Traffic volumes for Background Conditions were estimated by adding existing volumes to traffic generated by approved but not yet constructed and occupied developments in the study area. The list of approved projects, presented in Appendix D, was developed with input from City of Cupertino planning staff and Cities of Santa Clara and Sunnyvale. Traffic from the approved developments was obtained from traffic impact reports or estimated with ITE trip generation rates and standard engineering practice. The trips associated with each development were then assigned to the roadway network based on the relative locations of complementary land uses and existing and estimated future travel patterns. Background Conditions also includes full occupancy of the vacant office building located on the project site. Traffic from this use was included since the building could be occupied at any time by an appropriate tenant without substantial city review, and the current roadway system was originally sized to accommodate this use. The traffic generated by the existing office building was estimated using rates published in Trip Generation (7th edition) by the Institute of Transportation Engineers (ITE). The existing use consists of approximately 150,300 square feet of office space. If the existing building was re-occupied, it would generate approximately 1,826 daily, 260 AM peak-hour trips (229 inbound and 31 outbound) and 247 PM peak-hour trips (42 inbound and 205 outbound). The trip generation estimates for the office use are presented in Table 4. TABLE 4 EXISTING OFFICE TRIP GENERATION RATES AND ESTIMATES AM Peak Hour PM Peak Hour Use Daily In Out Total In Out Total Trip Rates Officet 12.15 1.52 0.21 1.73 0.28 1.36 1.64 Trip Estimates Existing Office (150.3 ksf) 1,826 229 31 260 42 205 247 Notes: Trip rates are expressed as trips per dwelling unit (d.u.) or per 1 ,000 square feet (ksf). Source: Institute of Transportation Engineers. Trip Generation, 7th Edition, 2003. 17 fþ FElli' & PEERS 'thl'n'M!~o aowuug IS -I<ffu Draft Fmal Calabazas Place TlA December 2005 -- The trip distribution pattern for the existing office uses was estimated based on existing travel patterns in the vicinity of the site and the relative locations of complementary land uses. The trip distribution pattern for office uses is illustrated on Figure 7 in Chapter 4. This figure shows the percentage of trips entering and exiting the study area on each major roadway. In general, trips were distributed along reglonai roadways (Wolfe Road and 1_ 280) and to residential areas in Cupertino, Sunnyvale, and Santa Clara. The office trips plus traffic from approved but not yet constructed developments were added to existing traffic volumes to obtained background traffic volumes. Figure 6 illustrates the traffic volumes at the study intersections under Background Conditions. BACKGROUND INTERSECTION LEVELS OF SERVICE Intersection level of service calculations were conducted to evaluate the operating levels of the study intersections under Background Conditions. The results of the intersection LOS analysis for the key intersections are presented in Table 5. The corresponding LOS calculation sheets are included in Appendix B. The intersection of Homestead Road and Lawrence Expressway is projected to degrade to LOS F during the PM peak hour under Background Conditions primarily due to the Kaiser Hospital. The remaining intersections are projected to operate at LOS D or better during both peak hours. At the Vallco Parkway and Finch Avenue stop-sign controlled intersection, peak hour warrants were evaluated were analyzed to determine if the minimum volume threshold for the MUTCD peak hour signal warrant would be met under Background Conditions. A review of the peak hour traffic volumes at the intersection shows that the minimum volume threshold for the MUTCD peak hour signal warrant would not be met during either the AM or PM peak hour. The signal warrant worksheets are included in Appendix C. fì> FElIR & PrER' ''''\~Q''.~!j~. :~..U"U,\ 18 /5 -/r¡1 Draft Fmal Calabazas Place TlA Decembel 2005 ~ TABLE 5 BACKGROUND INTERSECTION LEVELS OF SERVICE Peak Intersection Intersection Hour1 Control Delay' LOS' 1. Wolfe Road I Homestead Road AM Signal 26.9 C PM 46.7 D 2. Homestead Road I Tantau Avenue AM Signal 20.5 C+ PM 21.3 C+ 3. Homestead Road I Lawrence Expresswal AM Signal 47.3 D PM 92.5 F 4. Wolfe Road I Pruneridge Avenue AM Signal 20.2 C+ PM 31.7 C 5. Prune ridge Avenue I Tantau Avenue AM Signal 21.3 C+ PM 22.7 C+ 6. Wolfe Road 11-280 Northbound Ramps· AM Signal 12.8 B PM 13.7 B 7. Wolfe Road 11-280 Southbound Ramps· AM Signal 11.2 B+ PM 11.0 B+ 8. Wolfe Road 1 Valleo Parkway AM Signal 19.1 B- PM 60.0 E+ 9.Vallco Parkway I Finch Avenue AM Side-Street 11.8 B PM Stop Control "., - B 10Valleo Parkway 1 Tantau Avenue AM Signal 11.9 B+ PM 17.2 B 11. Stevens Creek Boulevard and De Anza Boulevard4 AM Signal 32.9 C- PM 38.8 D+ 12. Stevens Creek Boulevard 1 Blaney Avenue AM Signal 18.0 B- PM 29.1 C 13. Stevens Creek Boulevard 1 Portal Avenue AM Signal 10.9 B+ PM 14.6 B 14. Stevens Creek Boulevard I Perimeter Road AM Signal 8.3 A PM 16.1 B 15. Stevens Creek Boulevard I Wolfe Road-Miller Avenue4 AM Signal 37.0 D+ PM 42.9 0+ 16. Stevens Creek Boulevard I Finch Avenue AM Signal 30.4 C PM 17.0 B 17. Stevens Creek Boulevard I Tantau Avenue AM Signal 19.4 B- PM 20.6 C+ fþ 19 FHiR & PEERS 1U~"0I'MI~~ oO..ljHua J 5 -Irf Draft F;nal Calabazas Place TfA December 2005 -- TABLE 5 (CONTINUED) BACKGROUND INTERSECTION LEVELS OF SERVICE Peak Intersection Intersection Hour1 Control Delay' LOS' 18. Stevens Creek Boulevard 11-280 Ramps AM Signal 34.1 C- PM 46.1 D 19. _ffi Ore~ ~",,,,,, H...."œ "_,¡W,' - AM Signal 22.0 C+ PM 26.7 C 20. Stevens Creek Boulevard I Lawrence Expressway (E)4 AM Signal 37.7 D+ PM 39.2 D 21. Bollinger Road I Tantau Avenue AM Signal 10.6 A PM 10.0 A Notes: 1 AM = morning peak-hour, PM = evening peak-hour. 2 Whole intersection weighted average control delay expressed in seconds per vehicle for signalized and all-way stop intersections using methodology described in the 2000 Highway Capacity Manual, with adjusted saturation flow rates to reflect Santa Clara County Conditions. 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PROJECT CONDITIONS The impacts of the proposed residential development on the surrounding roadway system are discussed in this chapter. First, the methodology used to estimate the amount of traffic generated by the project is described. Then, the results of the level of service calculations for Project Conditions are presented. Project Conditions are defined as Background Conditions plus net new traffic generated by the proposed project. A comparison of the intersection operating levels under Background and Project Conditions are presented. and the impacts of the project on the study intersections are discussed. Site access, on-site circulation, parking, and neighborhood traffic are also addressed. PROJECT TRAFFIC ESTIMATES The amount of traffic added to the roadway system by a proposed development project is estimated using a three-step process: (1) trip generation, (2) trip distribution, and (3) trip assignment. The first step estimates the amount of added traffic to the roadway network. The second step estimates the direction of travel to and from the project site. The trips are assigned to specific street segments and intersection turning movements during the third step. The results of the process for the proposed Caiabazas Place project are described in the following sections. Trip Generation The amount of traffic added to the surrounding roadway system by the proposed development was estimated by applying appropriate AM and PM peak hour trip generation rates published in Trip Generation (7th Edition) by the Institute of Transportation Engineers (ITE). Reductions for internalization were applied per VTA guidelines. Some of the trips generated by the proposed retail uses are pass-by trips. Pass-by trips represent vehicles that are already on the adjacent street (Le. Stevens Creek Boulevard) and are not new trips on the overall street system. Drivers simply stop off at the project site on their way to/from their origin/destination. A pass-by trip reduction of 25 percent was applied to the retail trip estimates. The peak-hour trip generation rates and trip estimates are presented in Table 6. By itself, the proposed residential and retail project is estimated to generate 7,502 net new daily trips, 272 net new AM peak-hour trips (96 inbound and 176 outbound) and 694 net new PM peak-hour trips (369 inbound and 325 outbound). The net change in trips for daily and each peak-hour period was calculated by subtracting the trips generated by the existing office building from the trips generated by the proposed residential and retail development. The existing building will be demolished prior to construction of the proposed development. The existing use consists of approximately 150,300 square feet of office. Per Table 4, the existing use is estimated to generate 1,826 daily, 260 AM peak-hour trips (229 inbound and 31 outbound) and 247 PM peak-hour trips (42 inbound and 205 outbound). Therefore, the amount of net-added traffic by the proposed project is estimated to be a net increase of 5,676 daily trips, a net increase of 12 AM peak-hour trips (133 fewer inbound/145 added outbound) and a net increase of 447 PM peak-hour trips (327 added inbound/120 added outbound). Table 6 presents the net new trips. Trip Distribution The directions of approach and departure for the project traffic were estimated based on the existing travel patterns in the area and the relative locations of employment centers. In addition, Journey to Work information provided in the Census Transportation Planning Packet (CTPP) was used to help determine the trip distribution. tp 23 FfltR & PffRS 1"""~"~"~$ a~~"HU¡¡ 1~-2DZ. Draft Final Calabazas Place rIA December 2005 ~ TABLE 6 PROJECT TRIP GENERATION RATES AND ESTIMATES Daily AM Peak Hour PM Peak Hour Use Rate Trips Rate In Out Total Rate In Out Total Proposed Retail (120 ks!) 63.71 7.645 1.46 107 68 175 5.88 I 339 367 706 Mixed-use Reduction (from below) -298 -12 -12 -24 -14 -14 -28 Pass-by Reduction (25%) -1,837 -19 -19 -38 -85 -85 -170 Net Retail Subtotal (A) 5,510 76 37 113 240 268 508 North Townhomes/Condos (156 d.u.) 6.01 937 0.47 13 61 74 0.56 58 29 87 West Condos (95 d.u.) 6.46 614 0.53 9 41 50 0.61 39 19 58 East Condos (118 d.u.) 626 739 0.50 '" - 49 59 0.58 46 23 69 Mixed-Use Reduction (13%) -298 -12 -12 -24 -14 -14 -28 Net Residential Subtotal (8) 1,992 20 139 159 129 57 186 Proposed Use Only (A + 8 7,502 96 176 272 369 325 694 Existing Office Building (150.3 ks~ (C) 12.15 1,826 1.73 229 31 260 1.64 42 205 247 Net New Project Trips (A + B - C) 5,676 -133 145 12 327 120 447 Notes: 1 Trip rates are expressed as trips per dwelling unit (d.u.) or per 1,000 square feet (ksf). Source: Institute of Transportation Engineers. Trip Generation, 7th Edition, 2003. The major directions of approach and departure form the trip distribution pattern for the project, and are illustrated on Figure 7. Most project traffic will approach and depart the site using Wolfe Road north and south and 1-280. Trip Assignment The project trips generated from the residential development were assigned to the roadway system based on the directions of approach and departure discussed above. The trip assignment accounts for the southbound through restrictions on Finch Avenue and Tantau Avenue. Figure 8 shows the residential and retail project trips assigned to each turning movement by intersection. Figure 9 shows the peak-hour trip assignments for the net new project trips (i.e., proposed project less the traffic associated with the existing on-site office building). The net new project trips from Figure 9 were added to background traffic volumes to establish intersection volumes for Project Conditions shown on Figure 10. PROJECT INTERSECTION LEVELS OF SERVICE The project proposes several roadway network changes. These changes include removing one through lane in each direction on Vallco Parkway, changing the Vall co Parkway and Finch Avenue intersection from a two-way stop-controlled intersection to all-way stop-controlled, and removing one westbound through lane on Stevens f1I FEHR & PURS '....\"4_t"':O. a.'~"lr..¡\ 24 15 -2.D3 Draft Fmal Calabazas Place rIA December 2005 --- Creek Boulevard between Tantau and Finch Avenues. The intersection levels of service calculations include these changes. Intersection levels of service were calculated with the net traffic added by the proposed project to evaluate the operating conditions of the intersections and identify potential impacts to the local roadway system. The results of the intersection level of service calculations for Background and Project Conditions are presented in Table 7. This table also shows the changes in critical delay and volume-to-capacily ratio (\IIC) due to the addition of project traffic. Critical turning movements dictate how an intersection operates; therefore, Table 7 presents the change in critical VlC, and delay. In most instances, slight improvements in critical delay are reported. This is due to the method the program uses to allocate green time to the various turning movements. All of the key intersections are projected to operate at the same or better levels of service as Background Conditions with the proposed project. The levels of service calculation sheets are included in the Appendix B. VALLCO PARKWAY OPERATIONS As part of the project, Vallco Parkway will become a two-lane roadway east of Finch Avenue with left-turn lanes and angled parking provided on the south side. The estimated daily volumes on this portion of Vallco Parkway are approximately 7,000 vehicles. A two-lane roadway with parking has a capacity of 10,000 to 12,000 vehicles per day before excessive delays occur for the driveways or drivers accessing the parking spaces. As shown in Table 7, the intersection of Vallco Parkway and Finch Avenue would operate at LOS B or better with the change to all- way stop control. Under Project Conditions, traffic volumes at the unsignalized Vallco Parkway and Finch Avenue intersection would not meet the minimum warrant criteria for signalization during either the AM or PM peak hours. The signal warrant worksheets are included in Appendix C. A multi-way stop warrant analysis was not conducted since future hourly volumes cannot be determined. However, the all-way stop control at the Vallco Parkway and Finch Avenue intersection would provide drivers with a transition in the street's character from a thoroughfare to a two-lane street with angled parking. INTERSECTION IMPACT CRITERIA Signalized Intersections Implementation of the proposed project would result in a significant impact if the addition of project traffic causes one of the following: 1. The level of service at a Cupertino-monitored intersection operating at LOS D or better under Background Conditions to deteriorate to LOS E or F; or 2. An increase in the critical movement delay at a Cupertino-monitored intersection operating at LOS E or F under Background Conditions by four (4) or more seconds and an increase in the critical VlC ratio by 0.01 or more; or 3. The level of service at the Stevens Creek BoulevardlDe Anza Boulevard intersection to be LOS E or worse wiih more than 60 seconds of average vehicle weighted delay, or 4. Degradation of the level of service at a CMP-monitored intersection operating at LOS E or better under Background Conditions to LOS F; or 5. 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V) .,¿ ... ... p.., · · " o · o · , t d :ç, :> ^ o ~ Z / ð G ~ ð i < ~ .,¿ :r: ... µ;... o o " o Õ o ~ 0' " ,^ o ^~ 0/ o " ~1i ~$ zz IS /z.1/ Draft Fmal Calabazas Place TlA Decembel 2005 ~ TABLE 7 BACKGROUND AND PROJECT INTERSECTION LEVELS OF SERVICE Background Project Peak din Crit din Crit Intersection Hour1 Delay' LOS' Delay' LOS' Delay' VlC' 1. Wolfe Road 1 Homestead Road AM 26.9 C 26.9 C -0.1 +0.003 PM 46.7 0 47.2 0 +1.1 +0.020 2. Homestead Road I Tantau Avenue AM 20.5 C+ 20.2 C+ -0.6 -0.012 PM 21.3 C+ 21.5 C. +0.3 +0.011 3. Homestead Road I Lawrence AM 47.3 0 47.5 0 +0.1 +0.000 Expresswal PM 92.5 F 93.7 F +1.4 +0.003 4. Wolfe Road I Pruneridge Avenue AM 20.2 C+ 20.2 C+ -0.1 +0.007 PM 31.7 C 31.7 C +0.1 +0.012 5. Prune ridge Avenue I Tantau Avenue AM 21.3 C+ 21.3 C+ +0.1 +0.009 PM 22.7 C+ 23.0 C+ +0.2 +0.004 6. Wolfe Road 11-280 Northbound AM 12.8 B 12.8 B +0.1 +0.007 Ramps6 PM 13.7 B 14.3 B +1.1 +0.024 7. Wolfe Road 11-280 Southbound AM 11.2 B+ 11.2 B+ +0.1 +0.014 Ramps6 PM 11.0 B+ 11.5 B+ +0.7 +0.030 8. Wolfe Road 1 Vallco Parkway AM 19.1 B- 19.8 B- +0.3 +0.006 PM 60.0 E+ 65.5 E +2.4 +0.011 9'vallco Parkway I Finch Avenue? AM 11.8 B 8.3 A N/A N/A PM 13.5 B 11.2 B N/A N/A 10Vallco Parkway I Tantau Avenue AM 11.9 B+ 12.1 B -7.6 +0.002 PM 17.2 B 16.9 B -0.6 -0.026 11. Stevens Creek Boulevard and De AM 329 C- 33.0 C- +0.3 +0.003 Anza Boulevard6 PM 388 0+ 39.1 0 +0.3 +0.003 12. Stevens Creek Boulevard 1 Blaney AM 18.0 s- 18.0 B -0.1 +0.005 Avenue PM 29.1 C 28.9 C -0.1 +0.011 13. Stevens Creek Boulevard 1 Portal AM 10.9 B+ 10.8 B+ +0.0 +0.005 Avenue PM 14.6 S 14.4 B -0.2 +0.011 14. Stevens Creek Boulevard I Perimeter AM 8.3 A 83 A +0.0 +0.004 Road 16.1 B 15.9 B -0.2 +0.011 15. Stevens Creek Boulevard 1 Wolfe AM 37.0 0+ 37.0 0+ +0.0 +0.006 Road-Miller Avenue6 PM 42.9 0+ 43.9 0 +1.0 +0.016 16. Stevens Creek Boulevard I Finch AM 30.4 C 30.4 C +0.4 +0.026 Avenue PM 17.0 B 21.3 C+ +6.5 +0.252 17. Stevens Creek Boulevard I Tantau AM 19.4 B- 19.5 B- -0.0 +0.013 Avenue PM 20.6 C+ 19.6 B- -0.9 ~ +0.002 fp 33 FHIR & PEERS IU''''O''M¡M ....uu..n 15-2-12. Draft Fmal Calabazas Place TIA December 2005 ~ TABLE 7 (CONTINUED) BACKGROUND AND PROJECT INTERSECTION LEVELS OF SERVICE Background Project Peak Ain Crit ôin Crit Intersection Hour1 Delay' LOS' Delay' LOS' Delay' V/C' 18. Stevens Creek Boulevard I 1-280 AM 34.1 C- 33.5 ~ +1.1 +0.020 Ramps PM 46.1 0 46.5 0 +2.1 +0.011 19. Stevens Creek Boulevard I Lawrence AM 22.0 C+ 22.1 C+ +0.0 -0.009 Expressway (W) 6 PM 26.7 C 26.4 C +0.1 +0.017 20. Stevens Creek Boulevard I Lawrence AM 37.7 0+ 37.4 0+ -0.2 -0.010 Expressway (E) 6 PM 39.2 0 40.0 0 +0.9 +0.019 21. Bollinger Road I Tantau Avenue AM 10.6 A 10.7 B+ +0.1 +0.001 PM 10.0 A 10.1 B+ +0.1 +0.006 Notes: 1 AM = morning peak-hour, PM = evening peak-hour. 2 VVhole intersection weighted average control delay expressed in seconds per vehide for signalized and all-way stop intersections using methodology described in the 2000 Highway Capacity Manual. with adjusted saturation flow rates to reflect Santa Clara County Conditions. For two-way stop controlled unsignalized intersections, total control delay for the worst movement, expressed in seconds per vehicle, is presented. LOS calculations conducted using the TRAFFJX level of service analysis software package. 3 LOS = Level of service 4 Change in critical movement delay between Background and Project Conditions. A decrease in the critical delay indicates project trips were added to movements with low delays thus causing a decrease in the overall critical delay. 5 Change in the critical volume-to-capacity ratio (VIe) between Background and Project Conditions. 6 Designated CMP intersection. 7 Side-street stop control under Background Conditions and all-way stop controlled intersection under Project Conditions. Unsignalized Intersections For this analysis, traffic impacts at unsignalized intersections are defined to occur when the addition of project traffic causes: 1. Intersection operations to deteriorate from an acceptable level under Background Conditions (LOS D or better) to an unacceptable level (LOS E or worse) and the MUTCD Peak Hour Warrant is met under Project Conditions; or 2. The exacerbation of operations at an unsignalized intersection already operating at an unacceptable level (LOS E or worse) under Background Conditions and the MUTCD Peak Hour Warrant is met under Project Conditions. Based on the project impact criteria listed above, the proposed project will not cause a significant impact to the unsignalized intersection of Vall co Parkway and Finch Avenue. This intersection Is projected to operate at LOS A during both peak hours. 11> FEHR & PEERS I.U.'FOf'M!O.'h\UU."" 34 I , ~2.13 Draft Final Cafabazas Place TlA Decembe, 2005 --- INTERSECTION MITIGATION MEASURES The results of the analysis indicate that the proposed project wiil not have a significant impact on the key intersections during both peak hours. Therefore, no measures are required to mitigate any project-level impacts. FREEWAY SEGMENT ANALYSIS According to Santa Clara County CMP guidelines, freeway segments to which a proposed development is projected to add trips equal to or greater than one percent of the freeway segment's capacity must be evaluated in detail. Segments of 1-280 were reviewed to determine if the minimum threshold of project-generated traffic wouid be added to these freeway segments. Capacities of 2,300 vehicles per hour per lane (vphpl) for freeway segments with six or more lanes were used in the freeway analysis. To be conservative, no project trips were assigned to HOV lanes. Table 8 presents the capacities of the freeway segments, the estimated number of trips added to the segment by the project, and whether or not the freeway segments must be evaluated in greater detail. The amount of traffic added to each segment is estimated to be less than one percent of the segment's capacity. Therefore, the project's impact on the freeway segments is considered less-than-significant and no additional analysis is required. TABLE 8 FREEWAY SEGMENT ANALYSIS Peak 1% of Project Requires Segment Hour Capacity 1 Capacity Trips2 Analysis2 Eastbound 1-280, Saratoga Avenue to AM 6,900 69 33 No Lawrence Expressway PM 6,900 69 3 No Westbound 1-280, Saratoga Avenue to AM 6,900 69 -41 No Lawrence Expressway PM 6.900 69 58 No Eastbound 1-280, Lawrence Expressway to AM 6.900 69 8 No ~olfe Road PM 6,900 69 -6 No ~~stbound 1-280, Lawrence Expressway to AM 6,900 69 -9 No olfe Road PM 6,900 69 11 No Eastbound 1-280. Wolfe Road to De Anza AM 6,900 69 -24 Boulevard PM 6.900 69 37 No Westbound 1-280. Wolfe Road to De Anza AM 6.900 69 20 No Boulevard PM 6,900 69 5 No Notes: . 1 A capacity of 2,300 vehicles per hour per lane was used for three*lane mixed*flow freeway segments. 2 Project trips reflects net-added project trips. tp 35 FEHR & PHRS 'h"\'U'MI~~ t<J"'",r"'!i 15 - 2.11 Draft Fmal Calabazas Place TlA December 2005 --- SIMTRAFFIC ANALYSIS A SimTraffic simulation model was developed for Stevens Creek Boulevard and Wolfe Road to determine the progression and queuing effects of the addition of proposed project traffic. The model was also used to evaluate the removal of one westbound travel lane adjacent to the curb to provide parallel on-street parking on Stevens Creek Boulevard between Tantau Avenue and Finch Avenue. Figure 11 presents an image of the SimTraffic simulation of Wolfe Road during the PM peak hour under Project Conditions. The results of the simulation show that, in general, there is good progression along Wolfe Road and Stevens Creek Boulevard with the exception of the eastbound left-turns on Stevens Creek Boulevard at Wolfe Road. The heavy left-turn volume queues out of the pocket and extends to Perimeter Road. This queue can be reduced with extra green time added to this movement. Figure 11 - Project Operations on Wolfe Road (PM Peak Hour) Figure 12 presents an image of the SimTraffic simulation of Stevens Creek Boulevard in front of the project site during the PM peak hour under Project Conditions. The results of the simulation show that no major queuing or congestion is anticipated as a result of the elimination of one westbound through lane on Stevens Creek Boulevard. However, the reduction of a lane on this facility is not consistent with the cross-section of Stevens Creek Boulevard between SR 85 and 1-280 and the street character changes for only a short segment. Thus, for a single project. we do not recommend on-street parking on Stevens Creek Boulevard in this area. Furthermore, although not modeled in this simulation. the interaction of vehicles using the parallel on-street spaces would not be convenient and likely unsafe for motorists and bicyclists because Stevens Creek Boulevard is a higher speed facility and an isolated condition. Ultimately the elimination of a through lane and installation of parallel on-street parking is not recommended unless it is part of a larger project to reduce through capacity or provide parking on a longer segment of Stevens Creek Boulevard. Figure 12 - Project Operations on Stevens Creek Boulevard (PM Peak Hour) fþ FEHR & PEERS 'U~'Yn1''''lq~ ;U\ij\'·'W" 36 J 5 -2/..5 Draft Final Galabaza' Place TIA December 2005. .. . .. --- SITE ACCESS AND ON-SITE CIRCULATION The site plan showing the location of the project driveways and the internal circulation system is presented on Figure 2. The site has good vehicular access with driveways on Vallco Parkway, Stevens Creek Boulevard and Finch Avenue. One full-access driveway will be provided on Vallco Parkway to the north residential buildings. A right-turn in and out driveway will provide access to the west residential units located north and west of the public park. A driveway to the east residential units will be provided on a new internal road between Stevens Creek Boulevard and Vallco Parkway. Access to the retail uses will be provided by two right-turn only driveways on Stevens Creek Boulevard and one driveway on Finch Avenue. These driveways provide adequate capacity for vehicles to enter and exit the project site. Access to the western residential units is provided by a right-turn only driveway on Vallco Parkway. Westbound drivers on Vallco Parkway will be required to make a U-turn at Perimeter Road to enter these units. The width of the eastbound travel lanes plus any median should be at least 30 feet to allow U-turns. Drivers leaving these units to head west will not be able to make a eastbound U-turn at the Vallco Parkway/Finch Avenue intersection because inadequate width would be provided. We recommend that a "No U-turn" sign be installed at this intersection. Exiting vehicles destined for Wolfe Road will have to use Finch Avenue and Stevens Creek Boulevard or Tantau Avenue and Pruneridge Avenue. Sidewalks are provided on Vallco Parkway, Finch Avenue, Stevens Creek Boulevard, and most segments of Tantau Avenue. There are no sidewalks on the west side of Tantau Avenue north of Vallco Parkway including on the bridge over 1-280. To encourage walk trips to the project site, we recommend that a sidewalk be provided along the west side of Tantau Avenue between Vallco Parkway and Pruneridge Avenue. This will require construction of a raised sidewalk on the existing bridge, where the existing cross-section includes 60 feet of pavement with the following configuration: two southbound travel lanes, a two-way center left-turn lane, one northbound lane and bike lanes in both directions. The bridge section could be modified to accommodate the following: · 8-foot new sidewalk (on west side of bridge) · 6-foot bike lane · 12-foot vehicle lane · 16-foot painted median · 12-foot vehicle lane · 6-foot bike lane Left-turn lanes at the ends of the bridge could be provided within the painted median. Since the lane configurations at the Pruneridge Avenue and Tantau Avenue, and Vallco Parkway and Tantau Avenue intersections are expected to operate acceptably, the removal of the second southbound vehicle lane will not cause any capacity problems. In addition, it is expected that there will be pedestrian traffic between the northern residential areas and the retail uses. The project proposes to install all-way stop control at the Vallco Parkway intersection just west of Tantau Avenue. With the all-way stop control, this intersection is projected to operate at LOS B or better during both peak hours and will provide a designated pedestrian crossing location. This intersection would also operate at LOS B or better with two-way stop control. If two-way stop control is provided, a textured pedestrian crosswalk on Vallco Parkway should be provided to highlight the crosswalk to drivers. fþ 37 FUiR & PHRS ,....'"~",,:O~ ,~u"u...¡, ¡ fr Zlfp Draft Fmal Calabazas Place TlA December 2005 - Pedestrian traffic is expected from the neighborhoods south of Stevens Creek Boulevard. To encourage this pedestrian traffic, we recommend pedestrian countdown heads to be installed at the Stevens Creek Boulevard intersections with Finch and Tantau Avenues. The site has adequate bicycle access via the bike lanes on Wolfe Road, Vallco Parkway, and Tantau Avenue. Figure 13 illustrates recommended site plan changes on Vallco Parkway to safely guide bicyclists. The eastbound bicycle lane on Vallco Parkway at Finch Avenue should transition from the curb to its own lane between the through and trap right turn lane. The bicycle lanes should be continuous across the driveways on the south side of Vallco Parkway between Finch Avenue and the residential project driveways. Also, a five foot clearance should be provided between the bicycle lane and angled stalls. Finally, the site plan indicates a bike lane between the left- turn and eastbound through lanes on Vallco Parkway at the Tantau intersection. This lane should include a bicycle detector and be limited to bicycles turning left. Bicyclists continuing eastbound or turning right will use the curb bicycle lane. City of Cupertino staff and industry design standards will determine the final bike lane striping along Vallco Parkway. PARKING As shown in Table 9, the City of Cupertino's Municipal Code requires 1,271 parking spaces including 533 retail and restaurant and 738 residential parking spaces. The City's Municipal Code requires 2 (1 covered and 1 uncovered) spaces for every condominium unit. The parking requirement for the retail use depends on the final size and land use of buildings in the shopping center. The project applicant has indicated that there will be two restaurants, one with a bar and one without and 19,000 square feet of specialty retail. The remaining 87,000 square feet would be general retail. The proposed project will provide 1,261 on-site parking spaces including 405 retail (all surface), 856 residentiai (752 underground and 104 surface) parking spaces. The project will provide sufficient parking for the residential uses. However, the retail and restaurant parking supply (405 spaces) does not meet city parking requirements (533 spaces). The project will provide 68 angled parking spaces on both sides of Finch Avenue. One travel lane on Vallco Parkway will be replaced with 47 angled and parallel parking spaces along the project's frontage. These on-street parking modifications would result in 115 on-street parking spaces. (The parking analysis did not consider anyon-street parking on Stevens Creek Boulevard.) Assuming all of the 115 on-street parking spaces on Finch Avenue and Vallco Parkway were for the retail uses, the project would still provide 13 fewer spaces than required. In addition, it is likely that the on-street spaces will be used by guests, residents, and public park users. Therefore, retail parking demand could spillover to adjacent parcels such as the HP property on Vallco Parkway and Vallco Shopping Center. Mitigation measures to reduce the parking impact and potentially balance the parking deficiency include implementing one or more of the following items: · Provide valet parking either on-site or at an off-site location, · Provide off-site employee parking with a shuttle, · Enter into a shared-use agreement with HP to use their parking lot during the evenings and weekends, · Add on-street parking along the north side of Valico Parkway, and · Reduce the size of the retail or restaurant uses. Alternatively, 70 to 80 percent of the retail uses and one restaurant could open with a parking monitoring program that would survey the actual parking demand. If there is adequate parking available, then the rest of the center could be developed. ' fp 38 FEIIR & PEERS '''O''O'''''OM'O"''''''.'' I 5 - 2/1 Draft Fmal Calabazas Place TIA December 2005 ~ The site plan does not indicate bicycle parking faciiities. The project sponsor should provide 148 Class I bicycle parking spaces for residents (0.4 Class I bicycle spaces per dwelling unit), and 24 Class II bicycle parking spaces for retaii customers (0.05 Ciass II bicycle spaces per auto retail space). To accommodate demand and encourage nonmotorized transportation use, bicycle parking should be conveniently located near on-site bicycle and pedestrian routes. Class I facilities are long-term parking spaces that protect the entire bicycle and accessories from theft. These long-term faciiities include bicycie lockers, restricted access rooms, and constantly monitored enclosed cages. Class II facilities are short-term parking spaces within constant view of adjacent buildings or located at street floor level. The Class II facilities consist of a stationary object that users can secure the frame and both wheels with either U-shaped locks or padlocks. TABLE 9 PROJECT PARKING REQUIREMENTS AND SUPPLY City Code Requirements Use Rate Spaces Parking Provided' Retail (87 ksf) 1 per 250 s.t. 348 Restaurant with bar (150 seats 1 per 3 seats 50 & 20 employees) 1 per employee 20 Restaurant without bar (100 1 per 4 seats 25 405 seats & 10 employees) 1 per employee 10 Specialty Food (10 ksf wi no 1 per 250 s.t. or 40 seats & 9 ksf wi 120 seats) 1 per 3 seats 40 North Townhomes (108 d.u.) 216 305 North Condos (48 d.u.) . - 100 West Condos (95 d.u.) 2.0 per d.u. 190 196 East Condos (118 d.u.) 236 255 . Total --- 1,271 1,261 Notes: 1 The"cn-street parking on Vanco Parkway (47 spaces) and Finch Avenue (68 spaces) can be used by guests. residents, retail customers, and public park users. However, the on-street parking is not included in the proposed on-site parking sum. Source: City of Cupertino. City of Cupertino Municipal Code: Chapter 19.100 Parking Regulations, 2005. NEIGHBORHOOD TRAFFIC The main access routes to the project site are Stevens Creek Boulevard to finch and Tantau Avenues, and Wolfe Road to Vallco Parkway. Most of the project traffic is expected to use these streets to access the project site. Neighborhood streets to which the project could add traffic inciude Finch, Tantau, Judy, Bret or Stern Avenues. Currently, southbound traffic on Finch and Tantau Avenues north of Stevens Creek Boulevard are restricted to turning left or right onto Stevens Creek Boulevard. It is estimated that project trips on these streets would be generated by residents traveling to retail portion of the site or the park. Based on the project trip distribution, up to 50 peak-hour trips could be distributed to all of fhese streets. With the addition of an average of 10 vehicles per street in the peak hour, the average increase would be an additional vehicle every 6 minutes. Therefore, the project is not expected to substantially affect traffic on neighborhood streets. fp 39 FEHR & PEERS '.""0"0"0" (o".lucu"rl IS-2-IY ~__Uê".~ :J ~ 1D ð Qr ~ ... ~ ~ :.~'---~------------------¥""r------ ~ r --------.. aJ ~ j J~ .. ,.,.,'.."..~. tftJr.- : I i;¡~ ... . ~-:1' ~ t!-¡ H : j~...' . ....J".. ! ~ ~.:] I ,,"'" · ì I ê ~ "", :! ~~. . 0 ,-'.. I ~ -g · t W «J.- .;~ .·~'<iIi:'Y''''.. i::';' ..... "",. ,"",,,,<~,,/: :i .........~ ... - ~ ~ è :l <S 10 ',,»-;;, g,:; ~ ~ I/) M LU ..... '" C) LU ~ Z 0:: « ::> rJ) C) z£ :r: õ u ü: z z « ..J D.. LU l- ii) C LU C Z LU :¡; :¡; 0 U LU 0:: ":':"' '<"~ ~<>~: <> . w...,... "<'a . ":; '", V>" ",; < ¡.uo ¡.u" o...~ ce-' c(j § ~~ :r:~ ¡.uZ < w...~ .. ¿ · ~ .. E 8 · M' C. ~ ~ o o · ~ o ¿ ~ " ~ · ö: · ~ ~ · .. u ~ ~ :g:£ ~~ . ~ î'~ ~~ DZ 15,~lq Draft Fmal Calabazas Place TIA December 2005 ~ 5. CUMULATIVE CONDITIONS This chapter presents an analysis of Cumulative Conditions with the proposed residential and retail project. Cumulative No Project Conditions are defined as existing volumes plus traffic generated by approved but not yet constructed developments in the project study area, plus traffic generated by pending developments. Trips from the proposed residential project are added to the Cumulative No Project Conditions to obtain Cumulative plus Project Conditions. This chapter describes the procedure used to determine the cumulative traffic volumes and the results of the level of service analysis for Cumulative Conditions. CUMULATIVE TRAFFIC ESTIMATES A list of pending projects was obtained from the Cities of Cupertino, Sunnyvale and Santa Clara. The description and assignment of pending projects' trips to each intersection is provided on worksheets included in Appendix C. Figure 14 presents the Cumulative No Project volumes. The trips generated by the proposed retail and residential project were added to the Cumulative No Project Condition volumes and are shown on Figure 15. CUMULATIVE INTERSECTION LEVELS OF SERVICE Intersection operations were evaluated with level of service calculations under Cumulative plus Project Conditions, and the results are summarized with Background Conditions in Table 10. The Background Conditions serve as a baseline for determining cumulative impacts. The intersection of Homestead Road and Lawrence Expressway is projected to continue to operate at LOS F during the PM peak hour under Cumulative plus Project Conditions. The Vallco Parkway and Wolfe Road intersection is projected to degrade to LOS E during the PM peak hour under Cumulative plus Project Conditions. The remaining intersections are projected to operate at LOS D or better during both peak hours. The City is considering removal of the existing traffic signal and installation of a roundabout at the intersection of Pruneridge Avenue and Tantau Avenue. Thus, this intersection was analyzed with Cumulative plus Project volumes to evaluate the operational feasibility of this configuration. With a traffic signal, the Pruneridge Avenue and Tantau Avenue intersection operates at LOS C during both peak hours as shown in Table 10. Assuming a single-lane roundabout, this intersection would operate at LOS A during both peak hours. A roundabout may reduce fuel consumption and vehicle emissions. In addition, roundabouts have been shown to work well at intersections where the traffic volumes on each approach are evenly distributed. Additional review of design parameters and other considerations are necessary to fully evaluate feasibility of a roundabout at this location. CUMULATIVE ROADWAY IMPROVEMENTS Using the same significance criteria as Project Conditions, the cumulative projects would have a significant impact at the intersection of Vallco Parkway and Wolfe Road. Cumulative No Project Conditions were calculated to determine the project's contribution to the impact at this intersection under Cumulative Conditions. Table 11 presents the Cumulative No Project and Cumulative plus Project Conditions with the project contribution to the cumulative change in the critical volume to capacity ratio. The project contribution at Vallco Parkway and Wolfe Road is 47.8 percent, which is considered a significant impact. 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LS == v~9'~) v6~'~ J¡Hl. , 69) SO, J\Hl. 099U µJ 0 µJ 0 v) g9 " p... 0 õ u (¿61 9S -.J llHr (60£) SB dJ llHr ~ 0 . (Z9~) gO~- u, ULo'z) vVO'~ ~ I"",)S., , ~N_ " loLl 66, >~ (gev) B9v , NI" ~O>~ ~O>~ ~~ ~N J -~- -N- j ::!:.!B ;;~ ¡ ~k::~ oG 0/ ~~ ~ N~ ~ ~;¡; 0. ¡;¡~ -~ :r: ~l . J ~ ¡ ~ , µJ ð~ , µ.. zz 15 - 2-2/1 Draft Fmal Cafabazas Pface TlA December 2005 - TABLE 10 BACKGROUND AND CUMULATIVE PLUS PROJECT INTERSECTION LEVELS OF SERVICE Background Cumulative plus Project Peak ðinCrit ðin Crit Intersection Houri Delay' LOS' Delay' LOS' Delay' VlC' 1. Wolfe Road I Homestead Road AM 26.9 C 27.2 C +0.6 +0.021 PM 46.7 D 48.1 D +2.8 +0.043 2. Homestead Road I Tantau Avenue AM 20.5 C+ 20.2 C+ -0.5 -0.006 PM 21.3 C+ 22.1 C+ +1.1 +0.032 3. Homestead Road I Lawrence AM 47.3 D 53.3 D- -2.3 +0.067 Expresswal PM 92.5 F 114.4 F +36.6 +0.139 4. Wolfe Road I Pruneridge Avenue AM 20.2 C+ 21.2 C+ +1.4 +0.031 PM 31.7 C 32.5 C- +0.8 +0.032 5. Prune ridge Avenue I Tantau Avenue AM 21.3 C+ 21.3 C+ +0.2 +0.013 PM 22.7 C+ 21.8 C+ -13 -0.007 6. Wolfe Road 11-280 Northbound AM 12.8 B 13.0 B +0.3 +0.021 Ramps6 PM 13.7 B 15.7 B +3.2 +0.056 7. Wolfe Road 11-280 Southbound AM 11.2 B+ 11.2 B+ +0.2 +0.029 Ramps6 PM 11.0 B+ 11.7 B+ +1.2 +0.062 8. Wolfe Road I Vallce Parkway AM 19.1 B- 19.5 B- +0.2 +0.012 PM 60.0 E+ 67.6 E +5.0 +0.023 9. Vallco Parkway I Finch Avenue' AM 11.8 B 8.3 A N/A N/A PM 13.5 B 11.3 B N/A N/A 10.Vallce Parkway I Tantau Avenue AM 11.9 B+ 12.1 B -7.6 +0.003 PM 17.2 B 16.9 B -0.6 -0.025 11. Stevens Creek Boulevard and De AM 32.9 C- 33.5 C- +0.9 +0.011 Anza Boulevard6 PM 38.8 D+ 39.7 D +1.0 +0.012 12. Stevens Creek Boulevard I Blaney AM 18.0 B- 18.0 B -0.1 +0.014 Avenue PM 29.1 C 29.5 C +1.2 +0.045 13. Stevens Creek Boulevard I Portal AM 10.9 B+ 10.8 B+ +0.0 +0.013 Avenue PM 14.6 B 14.5 B +0.2 +0.031 14. Stevens Creek Boulevard I Perimeter AM 8.3 A 8.5 A +0.1 +0.012 Road PM 16.1 B 15.9 B -0.4 +0.020 15. Stevens Creek Boulevard I Wolfe AM 37.0 D+ 37.3 D+ +0.4 +0.019 Road-Miller Avenue6 PM 42.9 D+ 45.5 D +3.2 +0.044 16. Stevens Creek Boulevard I Finch AM 30.4 C 30.5 C +0.4 +0.026 Avenue PM 17.0 B 20.3 C+ +4.5 +0.232 17. Stevens Creek Boulevard I Tantau AM 19.4 B- 19.6 B- -0.0 +0.018 Avenue PM 20.6 C+ 19.6 B- -0.9, +0.008 11> FfIlR& PffRS ,..n..~""II". 'Q'~~\;"''' 46 IS, nS Draft Fmal Galabazas Place TIA December 2005 ~ TABLE 10 (CONTINUED) BACKGROUND AND CUMULATIVE PLUS PROJECT INTERSECTION LEVELS OF SERVICE Background Cumulative plus Project Peak ð. in Crit ð in Crit Intersection Hour1 Delay' LOS' Delay' LOS' Delay' VlC' 18. Stevens Creek Boulevard /1-280 AM 34.1 C- ". - C- +2.2 +0.037 Ramps PM 46.1 D 49.2 D +7.1 +0.031 19. Stevens Creek Boulevard I Lawrence AM 22.0 C+ 23.9 C +2.1 +0.023 Expressway (W)6 PM 26.7 C 28.4 C +2.3 +0.062 20. Stevens Creek Boulevard I Lawrence AM 37.7 D+ 37.6 D+ +0.0 -0.003 Expressway (E)6 PM 39.2 D 41.3 D +2.4 +0.042 21. Bollinger Road I Tantau Avenue AM 10.6 A 10.7 B+ +0.1 +0.002 PM 10.0 A 10.1 B+ +0.1 +0.007 Notes: 1 AM = morning peak·hour, PM = evening peak-hour. 2 Whole intersection weighted average control delay expressed in seconds per vehide for signalized and all-way stop intersections using methodology described in the 2000 Highway Capacity Manual, with adjusted saturation flow rates to reflect Santa Clara County Conditions. For two-way stop controlled unsignaljzed intersections, total control delay for the worst movement, expressed in seconds per vehicle, is presented. LOS calculations conducted using the TRAFFIX level of service analysis software package. 3 LOS = Level of service 4 Change in critical movement delay between Background and Cumulative plus Project Conditions. A decrease in the critical delay indicates project trips were added to movements with tow delays thus causing a decrease in the overall critical delay. 5 Change in the critical volume-to-capacity ratio (V/C) between Background and Cumulative plus Project Conditions. 6 Designated CMP intersection. 7 Side-street stop control under Background Conditions and all-way stop controlled intersection under Cumulative plus Project Conditions. fþ ffHR & PEERS tU~'~o"~'!~.· 'Ø~IO\.!U!' 47 IS~22fo EXHIBIT D CALABAZASPLACEDEVELOPMENT TOLL BROTHERS, INC. FISCAL AND ENROLLMENT IMP ACT ANALYSIS Prepared for: ~; The City of Cupertino Prepared by: TOWN HALL SERVICES 830 Woodside Road, Suite 4 Redwood City, California 94061 (650) 373-7373 FAX 373-7370 www.townhallservices.com November, 2005 15-22-7 ENROLLMENT IMPACTS Background The City of Cupertino has contracted with Towu Hall Services to conduct an objective analysis of the fiscal and enrollment impacts of the proposed Calabazas Place residential development project, a proposed 369 unit mixed-use development composed of 261 stacked flats and 108 townhomes over flats (condominiums), and 112,000 square feet of retail space. The project is located on a large 27 acre parcel south of Highway 280, east ofN. Wolfe Road, and north of Stevens Creek Boulevard. The developer of the proposed Calabazas Place project is Toll Brothers, Inc. Toll Brothers, Inc. anticipates that construction of the project will begin between fall and winter 2006, and be completed by an estimated mid 2009. This analysis contains a projection of new students as a result ofthe project, and an identification of the fiscal impacts of the project on the districts in which the projected students would attend. The proposed Calabazas Place project is located within the school district service areas of Cupertino Union Elementary School District (CUSD) and Fremont Union High School District (FUHSD). The school attendance areas in which Calabazas Place would be located are Eisenhower Elementary School, Hyde Middle School, and Cupertino High School. Student Generation Rate Analysis A projection of new student enrollment as a result of the Calabazas Place project allows the potential impact of development on the three impacted schools, now and into the future, to be considered. Student generation rates (SGRs), the average number of students per new housing unit, are a significant factor for the projection of enrollment into the future. Multiplying the number of new units by an appropriate SGR results in a projection of students ITom the units. Different housing types generate different SGRs. Our experience is that single family detached units typically generate approximately two to three times the number of students generated by multi-family condominium and apartment units. Townhouses (single family attached units) usually exhibit slightly lower SGRs than most single family detached units, but generally have SGRs much greater than multi-family condominium and apartment units. Condominiums (referred to as flats in the Calabazas project) and apartments usually have relatively low SGRs unless there are size or affordability features that make them attractive to families. Factors other than housing type, such as the sale price, the location of residential development, and socio-economics, are also significant in detennining student generation. When the units are new, younger families tend to be over-represented and student generation is generally greater at the elementary school level. As new units begin to age, the students present begin to enter the higher grade levels and eventually high school. Thus, with their families aging, they are not replaced by new students at the same rate. A more stabilized SGR occurs as Town Hall Services 1 November, 2005 15 ' z.z:&' Citv of CUDertino Calabazas Place DeveloDment ImDact Analvsis the subdivision ages, with the spreading of students amongst the elementary, middle, and high school being more equally apportioned. Recent Residential Development In Cupertino In order to detennine an appropriate SGR to assign to the 369 Calabazas Place units, we identified recently developed residential units within the City of Cupertino that are similar in type and characteristics to the proposed Calabazas Place development. We then utilized address and grade infonnation from the 2004 student file for both CUSD and FUHSD to count students from the units, then calculated elementary and high school SGRs for the various residential developments. Our SGR analysis included site visits to a fairly wide range of single family detached and single family attached projects. It covered 15 residential developments of various types in different parts of the City with an approximate total unit count of 1,723 units, 813 ofthe total being single family. A majority of the housing projects were completed within the last 3-10 years; with the exceptions being the DeAnza Oaks, Woodspring, and Seven Springs developments, which we estimate are 15 plus year old developments. It should be noted that the projects were located in various elementary, middle, and high school attendance areas, including the three attendance areas impacted by the Calabazas Place project (Eisenhower Elementary, Hyde Middle and Cupertino High), and in areas outside of the attendance areas where the Calabazas Place project would be located. Attached to this report as Appendices A and B are the SGR breakouts by development for elementary (Appendix A) and high school (Appendix B) districts. Tables 1 and 2 below summarize the SGR findings for both CUSD and FUHSD for the residential projects analyzed (which are shown in detail in the Appendices). Table 1 Average SGRs by Housing Type Cupertino Union School District Housing Type Avg. SGR by Units' Avg. SGR by Projecf SFD 0.497 0.545 SFA (older) 0.180 0.190 SFA (newer) 0.528 0.369 Condo.lApt. 0.164 0.181 1 The tota/number of students divided by the total number of units; this measurement tends to be highly influenced by the largest projects and its particular characteristics. lThe average of the SGRs for each project; this measurement reflects a broader range of projects, with a smaller project being weighted equally to a larger one. Source: Town Hall Services and CUSD student file. Town Hall Services 2 November, 2005 I S ~2Z1 City of CUDertino Calabazils Place Develoomenr ¡moiler Analvsis Table 2 Average SGRs by Housing Type Fremont Union High School District Housing Type Avg. SGR by Units' Avg. SGR by Project' SFD 0.229 0.207 SFA (newer) 0.115 0.117 SFA (older) 0.125 0.089 Condo./Apt. 0.142 0.043 IT/Ie total number of students divided by the total number of units; this measurement tellds to be higltly influenced by the largest projects and its particular characteristics. lThe average of the SGRsforeach project; this measurement reflects a broader range of projects, with a smaller project beillg weighted equally to a larger one. Source: Towtl Hall Services alld FUHSD studelltfile. Student generation in Cupertino projects varies by housing type more than is usual in similar communities, particularly with regards to the high student generation in single family units, and the low student generation in most apartments. Single family detached (SFD) housing, and a large share of single family attached (SF A) housing (townhomes and condominiums), are targeted towards families with children, with many units having three or four bedrooms. This is because there is a very high premium on family housing in CUSD and FUHSD due to families wanting to take advantage ofthe quality of the district's schools. Thus, student generation is very high for an older suburban area. In contrast, other single family attached units and most apartments are in multi-story buildings and have only one or two bedrooms. For young families with children they are more expensive and less satisfactory than other alternatives, so student generation in these housing types is comparatively modest. Ofthe projects we analyzed for similarity to the Calabazas Place project, the Travigne Villas condominium project (46 total units), which was completed within the last two to five years, is the most comparable. The Travigne Villas project exhibited an elementary SGR of 0.239, above the average of the multi-family housing projects in the sample. The Travigne Villas is a higher density project located in a primarily commercial area (Stevens Creek Blvd.), and without housing attributes such as yards and play areas (more common in single family units) that are likely to be attractive to families with school aged children. On the other hand, it is adjacent to a residential area and it has its own common areas separate from the commercial setting. (The Monte Bello apartments, in contrast, are incorporated into the commercial activities site.) While the Travigne Villas project served as an important comparison for our determination of the SGRs anticipated for the Calabazas project, we also evaluated each ofthe other projects, considered the factors that determined its student generation, compared those factors with the Calabazas ¡;>roject, and utilized this information in our choice ofthe SGRs used for projecting eurollment from the Calabazas project. Town Hall Services 3 November, 2005 /5-23D Citv of Cuoertino Calabazas Place Develooment lmvact Analvsis Calabazas Place SGRs The Toll Brothers, Inc. Calabazas Place project proposes 369 units: 108 condo/townhomes and 261 stacked flats. The proposed project also includes 112,000 square feet ofretail space which will replace the existing 150,000 square feet of office space at the site. Table 3 shows the current Calabazas Place development product composition which was provided to us by Toll Brothers, Inc. staff. The residential portion of the Calabazas project is a high density (30 units per acre) project with three and four story buildings. The North, East, and West Terrace building units average 1,600 square feet and the Villas building units average 1,475 square feet. "Townhouses" most often refer to ground level units. As ground level units, they often have higher SGRs. In this case, the townhouses are two story units on top of flats. With the townhouse units being an average 1,475 square feet per unit, a little smaller than the average for the flats, and being primarily two bedroom units, the Calabazas townhouses will not exhibit the student generation of a more single family oriented project. (For example, the Astoria single family attached townhouse project, with ground level units of a much larger size, has an average SGR of 0.61.) Table 3 Calabazas Place Development. Unit Composition Building Estimated Unit Average Per Unit Units Type Square Sales Price Footage 95 Stacked Flats 1,600 $880,000 118 Stacked Flats 1,600 $880,000 48 Townhouses & Flats 1,600 $880,000 108 Townhouses & Flats 1,475 $810,000 369 West Terrace East Terrace North Terrace Villas Total Source: Town Hall Services. Toll Brothers, Inc., and the City ofCupertino's Below Market Rate (BMR) housing program. *The City of Cupertino's BMR (rental) program dictates that the rental rate for each unit is established based upon the renters income level and the number of bedrooms in the rental uniL As shown in Tables 1 and 2, the average of the condominium and apartment projects' average SGRs for CUSD and FUHSD were 0.181 and 0.043, respectively, though individual projects range up to 0.290 and O. I 10 for the elementary and high school districts. Travigne Villas evidenced SGRs of 0.240 and 0.065 respectively. It is our judgment that the SGRs used to calculate new student enrollment 3-10 years after this single family attached project is constructed should be slightly above this level, partially in order to reflect the increasing desire of families to reside in the two school districts. (The SGRs should be well below the SGRs of the much larger ground floor single family attached (townhouse) units in the Bungalows Gourts (The Parks at Monte Vista) and Pruneridge Avenue projects which have been recently analyzed.) The SGRs chosen for the Calabazas Place project are shown in Table 4. Town Hall Services 4 November, 2005 15 - 2 31 Citv of Cuoertino Calabazas Place Develooment lmoact Analvsis Table 4 Calabazas Place Development Projected SGRs Elementary (K-5) SGR Middle (6-8) SGR Total Elementary SGR Calabazas Place Development Single Family Attached-SFA Townhomes and Flats 0.20 0.08 0.28 High School SGR Source: Town Hall Services 0.10 Enrollment Impacts A detennination of appropriate SGRs to be used for the Calabazas Place proj ect allows us to proceed with the calculation of the enrollment generated from the project. We can also describe how those SGRs change over time, and more importantly, to assess the impact of that development on the current enrollment at the impacted schools: Eisenhower Elementary, Hyde Middle, and Cupertino High. Table 5 shows the calculated student enrollment impact resulting ITom the project. Table 5 Estimated Enrollment Impact* Calabazas Place Development Unit Eisenhower Hyde Cupertino Type Elementary Middle High Total Villas Townhouse 108 108 108 SGR 0.20 0.08 0.10 Students Subtotal 22 9 11 42 West Terrace Flat 95 95 95 SGR 0.20 0.08 0.10 Students Subtotal 19 8 10 37 East Terrace Flat 118 118 118 SGR 0.20 0.08 0.10 Students Subtotal 24 9 12 45 North Terrace Flat 48 48 48 SGR 0.20 0.08 0.10 Students Subtotal 10 4 5 19 Total Students 75 30 38 143 . Students Per Grade 12.50 10.00 9.50 11.00 *Three to tell years after construction of tlte units. Source: Town Hall Services Town Hall Services 5 November, 2005 I 5 - 23Z Citv of Cuvertino Calabazas Place Develovment Imvact Analvsis A total of approximately 143 students are projected to be generated as a result of the Calabazas Place development, and will impact the three schools whose attendance boundaries include the project area. It is anticipated that of those 143 students: 75 will attend Eisenhower Elementary School, 30 will attend Hyde Middle School, and 38 will attend Cupertino High School. Capacity issues at each campus will detennine if all of these students will be housed at their "home" school, or whether some will need to be sent to another school out of their attendance area as a result of capacity limitations. An examination of the emollment capacity at each of these schools is discussed in the next section. Emollment impacts at these schools occur not only immediately upon completion, but also into the future as well. As stated previously, the elementary student generation is generally greatest the first few years after project completion; then begins a period of time when those students progress through the grade levels. The students at the elementary (K-5) grade level will progress into middle school in the next one to six years, and then progress into the high school in the next four to nine years. In short, the 38 high school students generated as a result of the project will progress through high school and, in the next few years, gradually be replaced by the 105 elementary district students as they progress through the high schools. Given the larger number (per grade) of elementary district students, the high school emollment will increase slightly above its initial level during this period. Eventually the students coming from the Calabazas Place project will tend towards a long tenn "steady-state" or "plateau," with emollment at a level moderately below this initial period after construction. Enrollment Capacity At Impacted Schools Emollment from the addition of new students as a result of the Calabazas Place project directly impacts capacity at the affected schools. In order to evaluate the impact, the capacity of the affected schools must be calculated. Table 6 shows the emollment capacity at Eisenhower Elementary, Hyde Middle, and Cupertino High. Town Hall Services 6 November, 2005 15-233 Citv of Cuoertino Calabazas Place Develooment lmoact Analvsis Table 6 Theoretical Enrollment Capacity At Impacted Schools Classroom Number of Classroom Total CBEDS Capacity Type Classrooms Loading Factor Capacity 200l Surplus (Deficit) Eisenhower K-5 23 23- 529 Eisenhower Severe SDC 1 8 8 Eisenhower Non-Severe SDC I 12 12 Total Eisenhower Capacity 549 570 (-21) Hyde 6-8 34 25- 850 Hyde Severe SDC 1 8 8 Hyde Non-Severe SDC I 12 12 Total Hyde Capacity 870 1,003 (-133) Cupertino 9- I 2 56 27.5' 1,540 Cupertino Severe SDC 2 8 16 Cupertino Non-Severe SDC I 12 12 Total Cupertino Capacity 1,568 1,542 +26 J CBEDS 2004 represents the enrollment count taken in Octobør, 2004 for the 2004-2005 school year. 1 Classroom loading factors for Eisenhower Elementary (K-3 at 20 per room, 4-5 at 31 per room, and 6-8 at 25 per room) and Hyde Middle provided by CUSD staff. J Capacity calculated based on 32 students per class, with adjustments for teacher prep and meeting periods and allowances for physical education and the ninth grade class size reduction (CSR) program. Source: Town Hall Services and CUSD and FUHSD data. CUSD staff provided Town Hall with existing loading standards: kindergarten to third is loaded at 20 students per classroom (Class Size Reduction Program-CSR), fourth to fifth is loaded at 31 students per classroom, and sixth to eighth is loaded at 25 students per room (thus allowing for teacher preparation period). The 23 students per class used in Table 6 to calculate capacity at Eisenhower Elementary is a weighting of the 20 CSR students in kindergarten through third, and 31 students in fourth and fifth grades. The number of classrooms used in our calculations include all classrooms, including those used for regular instruction, plus those classrooms used for special purpose instruction (music, art, drama, resource specialist program, etc.). Thus, the classroom count assumes maximum classroom usage. At the standards shown in Table 6, CUSD has a capacity for 549 students at Eisenhower Elementary, and 870 students as Hyde Middle. As a point of reference, the total 2004 District enrollment for CUSD is 16,285 students. More complexities are involved with high school classroom loading and scheduling standards. Currently, the majority of Cupertino classes are loaded at 32 students per class. The District considers this an educationally undesirable ratio, and has operated at a lower ratio in the past. Some classrooms are loaded at lower rates due to policies and programs at FUHSD schools that affect average class size, and some rooms are not available for regular class loading due to the following principal factors which affect FUHSD classroom loading: FUHSD is reinstating the ninth grade math and English class size reduction program (CSR) in Fall 2005. Ninth grade CSR Town Hall Services 7 November, 2005 15-23tf Citv of Cuvertino Calabazas Place Develovment Imvact Analvsis . programs, which limit ninth grade math and English classes to a maximum of20 students, are subsidized by the State. About 10% of high school students are in these classes at any time. Special use classrooms such as science labs, music, art, culinary arts, and industrial arts, etc. are classrooms that are difficult to utilize every period. Also, per FUHSD policy, teachers use their classroom one period per day for teacher preparation and meetings. On the other hand, at any given time approximately 10% of the students are assumed to be in Physical Education (P.E.) class, and thus do not require classroom space on a regular basis. The result of all these programs is that the effective loading is about 27.5 students per classroom (for non-SDC classes), the figure the District uses for facilities planning. Finally, as shown in Table 6, Special Day Class (SDC) students at Cupertino High occupy classrooms at 12 students per classroom for non-severe SDC classes, and 8 students per classroom for severe SDC classes. The State maximum for SDC classroom loading is 13 student per classroom for non-severe SDC classrooms, and 9 students per classroom for severe SDC students. Given these assumptions regarding classroom loading, Cupertino High has a capacity of 1,568 students, even with most classes having an average of 32 students. This capacity is approximately equal to (greater by 26 students) the current Cupertino High 2004-05 emollment of 1,542 students. Our analysis of capacity at the three schools indicates that at the present time a capacity deficit exists at Hyde Middle school, with Eisenhower Elementary and Cupertino High approximately at capacity, as it is shown in Table 6. This information is consistent with the perspective of staff at CUSD who indicated that at present Eisenhower Elementary and Hyde Middle are currently at capacity. However, CUSD has completed modernizations and renovations to many of its campuses. In particular, both Eisenhower Elementary and Hyde Middle have recently completed their facilities improvements and will, as a result, be creating new attendance boundaries and moving the sixth grade into the middle school grade level (sixth grade was previously part of the elementary grade level). Therefore, both Eisenhower and Hyde will have significantly different emollments next year. In short, although both CUSD schools are showing capacity deficits in Table 6, recent and near- term facilities improvements and boundary changes will reduce, and likely eliminate, that capacity deficit. It is the District's assertion that, given the SGRs used in this report, the two CUSD schools affected by the Toll Brothers project should be able to accommodate the new students, either through the existing improvements to the two facilities and the attendance boundary adjustments, or by adding classrooms to the facilities. Overcrowding exists at several FUHSD schools. At a 2004-2005 emollment of 1,542, Cupertino High is near theoretical emollment capacity. FUHSD has recently conducted a residency' verification of all its students. As of May, 2005 the District estimates that approximately 250- 300 students will be "dis-emolled" for the 2005-2006 school year as a result of being ineligible Town Hall Services 8 November, 2005 /5-233 Citv of Cupertino Calabazas Place Development Impact Analvsis due to residency. The initial estimate is that approximately 30-50 of these students will be from Cupertino High. As it stands now, an estimated net capacity gain of250-300 for the District, and 30-50 students for Cupertino High, will create additional capacity, but again will not alter the near capacity situation that currently exists. In addition, it will take approximately four years for the gradual passing of the baby boom echo generation from high school age to cause a reduction in enrollment. (The District currently has a study underway to forecast future enrollment, including the effect of this demographic transition.) CAPITAL COST IMPACTS Residential Development Impact Fee Revenue Both CUSD and FUHSD are eligible to levy Level I development impact fees on new residential and commercial/industrial development. There is currently a development impact fee revenue sharing agreement between FUHSD and its elementary feeder districts. The maximum Levell residential fee that CUSD and FUHSD are allowed to levy is $2.24 per square foot of residential development. Per the existing fee revenue agreement between the elementary and high school districts, FUHSD is allowed to collect 40% of$2.24, or $0.90, per square foot of residential development. CUSD is allowed to collect 60% of$2.24, or $1.34, per square foot of residential development. Both Districts are still collecting at rates based on the previous 2004 maximum fee level of $2.14 per square foot, but are in the process of bringing their fees up to the maximum allowable. As stated previously, Toll Brothers, Inc. has provided Town Hall Services with tentative site plans that show the breakout of unit types and sizes for the Calabazas Place project. Table 7 shows the development impact fees that would be generated by the Calabazas Place project. Table 7 Development Impact Fees Number of Square Feet Total CUSD CUSD FUHSD FUHSD Total Units Per Unit Sauare Feet Fee Fee Total Fee Fee Total Fees West Terrace 95 1,600 152,000 $1.34 $203,680 $0.90 $ 136,800 $340,480 East Terrace 118 1,600 188,800 $1.34 $252,992 $0.90 $169,920 $422,912 North Terrace 48 1,600 76,800 $1.34 $102,912 $0.90 $69,120 $172,032 Villas 108 1,475 159,300 $1.34 $213.462 $0.90 $143370 $356,832 Total 369 $773,046 $519,210 $1,292,256 Source: Town Hall Services * Per California Government Code See. 65995.1(0) Senior Housing units are only assessed at the commercial and industrial fee levels. Town Hall Services 9 November, 2005 15-2-% Citv of Cuvertino Calabazas Place Develoament Imaact Analvsis Commercial/Industrial Development Impact Fee Revenue Under California law, both districts are eligible to levy development impact fees on commercial/industrial development in addition to the fees being levied for residential development. The districts are each in the process of bringing their fees up to the maximum allowable $0.36 per square foot of commercial/industrial development. Currently, they are together levying $0.34 per square foot. The fee sharing agreement also governs the split offee revenue from non-residential development. Of the $0.36 maximum commercial/industrial fee, CUSD is allowed to collect 60%, or $0.22, per square foot, and FUHSD is allowed to collect 40%, or $0.14. Commerciallindustrial fees generated within the districts have averaged four percent of residential fees through the last three years. The commercial/industrial fee revenue is sufficiently small, and associating a portion of it with the Calabazas Place project would not change the magnitude of the facilities costs impacts to either CUSD or FUHSD. On the other hand, currently there is an existing 150,000 square foot office building on the site where the Calabazas Place project is proposed. When the developer applies for building permits for the Calabazas Place project, they will be given a credit for the demolition of the existing commercial/industrial structure at the current commerciallindustrial fee rate. This will reduce slightly the fee the developer will be charged for the creation ofthe new 369 residential units. In relationship to the new residential fees (Table 7) for the Calabazas Place units, the commercial/industrial demolition credit will also be comparatively insignificant. Facilities Costs The cost for housing additional students at each of the impacted schools comes rrom each District's existing Levell Development Impact Fee Justification Report. FUHSD's Fee Justification Report was completed in 2001 by Town Hall Services. CUSD's Fee Justification Report was completed in 2000 by School Facility Consultants. (Town Hall Services is now in the process of preparing an updated fee justification report.) Each of those reports identifies a per student cost to house enrollment generated as a result of new development. Because each of these reports is quite old, we have applied an adjustment of21 % to the costs enumerated in those reports to bring the costs up to date. (At the time of both reports the Class B Construction Cost Index was 1.40. The State Office of Public Construction's current Class B Construction Cost Index is currently 1.70, 21 % higher.) Table 8 shows the calculation of the difference between the development impact fees likely to be generated by the Calabazas Place projects given the current project proposal and the Construction Cost Index adjusted facilities costs per student for each of the districts. The table shows negative capital cost impacts for both districts. Town Hall Services 10 November, 2005 J 5 ~2.j7 City of Cuvertino Calabazas Place Develovment Imvact Analvsis Table 8 Facilities Fees VefSUS Facilities Costs $7,362 $13,663 Facilities Cost Per Student Per Student* Cost Difference Students $9,317 -$1,955 105 $24,478 -$10,815 38 Total Facilities Cost Impact Fee Revenue Per Student CUSD FUHSD -$205,275 -$410,970 *FUHSD fee report completed by Town Hall Services in 2001, CUSD fee report completed by School Facility Consultants in 2000. Source: Town Hall Services and existing CUSD "lid FUHSD Fee Justification Report. OPERATIONAL REVENUE AND COST IMPACTS Opefating Revenues The Calabazas Place project will affect the revenues and costs for the two districts, although in very different ways. CUSD is currently a "revenue limit" district. Like the overwhelming majority of revenue limit districts in the state, its property tax revenues are not sufficient to reach the pef student amounts guaranteed under the State of California school funding program. Therefore the State supplies the additional funds necessary to fill the gap up to the guaranteed level. The result is that the revenues from property taxes plus the revenue limit program funding increases proportionately as enrollment increases. Another reality for a revenue limit district is that the increase in property tax revenue from new homes is offset by a comparable reduction in the money from the State. The "revenue limit" total for CUSD for 2003-2004 was $70,863,543, or $4,351 per student. The State and the Federal Government also supply other funding, generally for categorical programs, and these also tend to increase as enrollment increases. The operating revenues from these sources totaled $1,336 per student in CUSD for the 2003-2004 fiscal year. Thus, the per student revenue impact coming from sources that will increase approximately proportionate to the addition of new students resulting from the Calabazas Place project is $5,687. Local revenues (other than the property tax) constitute a far smaller source of funds; they totaled $8,783,260 or $539 per student. Some examples ofIocal revenue sources are interest income and rental/lease income. These revenues are not likely to increase with additional enrollment. FUHSD is one ofthe relatively few districts in the state that is not a revenue limit district. The District's per student property tax is moderately above the amount of per student revenue limit funding guaranteed by the State. State revenue does not increase when additional students are enrolled. However, new homes generate additional property taxes, increasing the District's revenues. Table 9 shows the calculation of the assumed assessed valuation and property t~x calculation for the proposed Calabazas Place project, based on tentative estimates from Toll Brothers, Inc. It should be noted that actual market prices paid for the units will detennine what the final assessed valuation for the 400 Calabazas units will be. Town Hall Services 11 November, 2005 15-2.~'l City of Cuvertino Ca/abazas Place Deve/oDment ImDact Ana/vsis Table 9 Estimated Assessed Valuation and Property Tax Calabazas Place Development Number 0/ Estimated Assessed Units Sales Price Valuation West Terrace 95 $880,000 $83,600,000 East Terrace 118 $880,000 $103,840,000 North Terrace 48 $880,000 $42,240,000 Villas 108 $810,000 $87,480,000 Total 369 $317,160,000 Property Tax Rate (1.0%) $3,171,600 FUHSD Share of Tax Rate (17.6%) $558,202 FUHSD Share o(Tax Rate per FUHSD Student $14,690 Source: Toll Brothers, Inc. estimate of unit sales prices, and the City of Cupertino's BMR housing program standards for a low-income one bedroom unit.. In November 2004 voters in the Fremont Union High School District approved Measure L, a parcel tax of $98 per parcel. The 400 Calabazas Place homes will generate $31,360 in additional funds per year for the approved duration of the parcel tax. As with the CUSD, local revenues (other than the property tax) constitute a far smaller source of funds; they totaled $5, I 05,264 or $530 per student. In general, these revenues are not likely to increase with additional enrollment. Thus, the per student revenue impact is calculated to be the $8,858 per student received from property and parcel taxes. Table 10 shows the operational revenue anticipated for additional students as a result of the Calabazas Place project. Given recent infonnation about home sales in the District, it is likely that when the units are completed and ready for sale, the estimated per unit sales price will be higher than the figures indicated in Table 9. Therefore, we are providing an estimated assessed valuation in Table 10, and subsequent operational revenue and cost calculation, for a "higher estimated sales price," should real estate market conditions in the District continue strong growth. Town Hall Services 12 November, 2005 t 5" - 2 31 City of Cuoertino Calabazas Place Develoomen! Imoac! Analvsis Table 10 Higher Estimated Assessed Valuation and Property Tax Calabazas Place Development Number of Higher Estimated Assessed Units Sales Price (+15%) Valllation West Terrace 95 $1,012,000 $96,140,000 East Terrace 118 $1,012,000 $119,416,000 North Terrace 48 $1,012,000 $48,576,000 Villas 108 $932,000 $100,656,000 Total 369 $364,788,000 Property Tax Rate (1.0%) $3,647,880 FUHSD Share of Tax Rate (17.6%) $642,027 FUHSD Share .{Tax Rate per FUHSD Student $16,895 Source: Toll Brothers, ¡nc. estimate of unit sales prices. and the City of Cupertino's BMR housing program standards for a low-income. As stated previously, there are existing commercial/industrial buildings on the proposed Calabazas Place site. The current property owners are paying property tax on that existing property. When the property changes ownership and subdivided into 400 residential properties, there will be a significant increase in the assessed valuation of the land and the new residential properties that will exceed the amount of property tax lost from the current commercial/industrial buildings' assessed valuation. In relationship to the new Pruneridge development, any loss of current property taxes from the commercial/industrial property will be comparatively insignificant. Operating Costs Almost all operating costs tend to increase with emollment if educational standards are maintained. These costs include personnel costs like salaries and benefits for certificated and classified employees, which generally comprise a large majority of a district's budget. Therefore, the cost per student is simply a calculation of the revenue available for operating expenditures divided by the number of students. Table 11 shows the operational costs anticipated for additional students as a result of the Calabazas Place project. Town Hall Services 13 November, 2005 15~ltfÓ Otv of CUDerlino Calabazas Place Develovment Imvact Analvsis Table 11 Operational Costs Versus 6perational Revenues CUSD FUHSD Current A V FUHSD Higher A V Assumption Students 105 38 38 Revenues State and Federal Funding Per Student FUHSD Share of Property Tax FUHSD Measure L Parcel Tax ($98) Total Revenues $5,687* Revenue Per Student $5,687 $558,202 $642,027 $36,162 $36,162 $594,364 $678,189 $15,641 $17,847 $7,804** $7,804** $296,552 $296,552 $297,812 $381,637 $7,837 $10,043 $597,135 Costs Average Cost Per Student Total Costs $6,226* $653,730 lVetFiscalltnpact Total Impact Per Student Impact -$56,595 -$539 *Revenues and costs derived from the CUSD Second Interim Budget June, 2004 report; expenditures per student are assumed equal to total current revenue per studenL **Current average cost per student for Cupertino High provided by FUHSD staff. Source: Town Hall Services Net Operating Impact There is a net fiscal loss (-$539 per student) for CUSD as a result of the additional students from the Calabazas Place proj ect. This reflects the assumption that state and federal revenues will increase along with the increased emollment, but revenues from local sources in general will not. In addition, the current operational cost assumption of $6,226 per student is an average cost per pupil for all expenditures. At current estimated assessed valuations there is a net fiscal gain of$7,837 per student for FUHSD in providing services to an additional 38 students as a result of the Calabazas Place project. Ifreal estate market costs continue to increase as project completion gets nearer, it is likely that a higher per unit sales price will result in the creation of a benefit of perhaps $10,043 per student as a result of the 38 additional students from the Calabazas Place project. Town Hall Services 14 November, 2005 I S ~ ~4I Citv of Cuvertino Calabazas Place Develooment Imvact Analvsis SUMMARY OF FINDINGS The projected enrollment and fiscal impacts resulting from the development of396 single family attached housing units (Calabazas Place) have been analyzed. These impacts were analyzed using current enrollment and financial information data for CUSD and FUHSD in general, and the affected schools, specifically, Eisenhower Elementary, Hyde Middle, and Cupertino High. The enrollment impacts analyzed in this report describe the expected impact within three to ten years of the Calabazas Place development completion, generally assuming current conditions. However, conditions will change and influence student generation in CUSD and FUHSD. In particular, changes in demographics can impact enrollment capacity within the Districts. For instance, we are currently nearing then end of a period commonly referred to as the "baby boom echo" period, whereby some of the children of the baby boom generation are still enrolled in high school. High school enrollment will decline in a few years as the end of the baby boom echo graduates. Shifts in the birth rate can also impact future enrollment. The State of California Department of Finance predicts a moderate increase in the birth rate in the coming years. The capacity issues facing each of the three affected schools as a result of the Calabazas Place project will change in the future as demographic shifts occur in the districts. Changes in policies within the districts can also affect enrollment into the future. Again, due to capacity concerns and the amount of inter-district transfers at the high schools, FUSHD is currently in the process of a residency verification process. Because of the desirability of FUHSD schools, some students trom outside of the District attend FUHSD schools. Therefore, there will be a reduction in total enrollment at FUHSD schools in the near future as a result of the enrollment verification process, thus impacting enrollment capacity. Below is a summary ofthe significant findings contained in this report. i:I An analysis of recent single family housing in the Cupertino area (Table 1 and Table 2) indicates that appropriate SGR's for the Calabazas Place 369 unit development are; 0.280 for the townhomes and flats (369 units) for CUSD, and 0.100 for the townhomes and flats (369 units) for FUHSD. The SGR's are shown in Table 4. i:I Based on the SGRs, an enrollment impact of 105 total students is estimated as a result of the Calabazas Place project: 75 students at Eisenhower Elementary (12.50 students per grade), 30 students at Hyde Middle (10.00 students per grade), and 38 students at Cupertino High (9.50 students per grade). The projected enrollment is shown in Table 5. i:I A capacity deficit would exist at Hyde Middle (133 students), and at Eisenhower Elementary and Cupertino High enrollment is approximately at capacity. CUSD has completed or has planned near-term modernizations, renovations, and boundary adjustments that will result in adequate capacity for the Eisenhower and Hyde students. Town Hall Services 15 November, 2005 /5-N2 Citv of Cuoertino Calabazas Place Develooment ¡moact Analvsis For FUHSD, the District as a whole is overcrowded and is operating at a student per class ratio that is educationally undesirable, and the Cupertino campus likely had a historical students per class ratio far less than the current student per classroom ratio of32:1. Capacity calculations are shown in Table 6. o Facilities costs per student are anticipated to exceed facilities fee revenue per student at CUSD (-$1,955 per student) and FUHSD (-$10,815 per student), or a total facilities cost deficit of(-$205,275) for CUSD and (-$410,970) for FUHSD. o Operational costs are anticipated to exceed operational revenue at the impacted CUSD schools (Eisenhower and Hyde) by -$539. At the impacted FUHSD school (Cupertino High) there will be a net benefit of $7,837 per student using current assessed values, and under higher assessed valuations the impact becomes $10,043 per FUHSD student if real estate market conditions continue to escalate as the proposed project nears completion. Total operational costs are projected to be a deficit of -$56,595 for Eisenhower and Hyde combined, and a surplus of$297,812 (current assessed values), and $381,637 (higher assessed values) for Cupertino High if real estate conditions continue to escalate. CUMULATIVE RESIDENTIAL DEVELOPMENT IMPACTS The City of Cupertino has requested that this analysis include, in addition to the analysis for the Vallco Properties development, a cumulative analysis of the fiscal and emollment impacts of the project combined with other projects that are either under plan review or have been approved and are under construction. Those other projects (and the project developer) are; Metropolitan at Cupertino (Menlo Equities), Vallco Rosebowl (Vallco Properties), Pruneridge Avenue (Morley Brothers), and Vallco Properties (V allco). This section assesses the aggregated net emollment, capital facilities cost, and operational cost impacts as a result of all of these proj ectS. Appendix C shows the fiscal and emollment impacts of each project, and provides an aggregated analysis ofthe impacts of those projects as a whole. Town Hall Services completed analyses similar to this one for the Calabazas Place project: Pruneridge Avenue, and Vallco Properties projects. Although the Metropolitan and Vallco Rosebowl projects were not similarly analyzed, information was obtained that have allowed us to calculate the estimated impacts ofthose two previously approved projects, and to include them in our analysis of the cumulative fiscal and emollment impacts. Town Hall Services 16 November. 2005 /5 -2-'-13 Citv of Cuvertino Calabazas Place Develovment Imaaet Analvsis Cumulative Enrollment Impacts The forecasted school enrollment impacts as a result of the five residential development projects all occur in the Cupertino Union Elementary and Fremont Union High School Districts, and impact schools individually based upon the school attendance area in which the residential development is situated. The net enrollment impact to CUSD and FUHSD schools are as follows: 188 new students in the CUSD elementary schools (grades K-5), 80 new students in CUSD middle schools (grades 6-8), and 95 new students to FUHSD high schools (grades 9-12). Appendix C shows these figures and the impacts of the projects per grade level and per school. It is difficult to assess the enrollment versus capacity impacts of these projects. As is stated in the previous Enrollment Capacity of Impacted School section of this report, the enrollment of the impacted CUSD elementary and middle schools was unknown at the time the report was prepared due to the alteration of the attendance boundaries (Collins Elementary and Lawson Middle) of the schools where this project lies. However, staff have analyzed the situation and concluded that district schools, with modest additions if needed, will be adequate to accommodate students from the proposed projects. FUHSD is concerned about enrollment impacts district wide (but their concern is focused primarily on any projects that might be in the Monta Vista School attendance area) and primarily over next few years as they anticipate some enrollment decline as the baby boom echo student pass from the high schools. All ofthe five projects analyzed here located within the Cupertino High School attendance area, and therefore impact enrollment at that school. Cumulative Capital Facilities Cost Impacts The cumulative net facilities cost impacts for the five projects analyzed is (-$755,609) for the Cupertino Union School District. On a per student facilities cost basis, the average per student facilities cost impact is (-$3,054) for CUSD. The greatest impacts result from the Calabazas Place project, with a total project facilities cost impact of (-$205,275) and the Bungalow Courts project with a per student facilities cost impact of(-$3,77I) for CUSD. The cumulative net facilities cost impacts for the six projects analyzed is (-$1,452,034) for the Fremont Union High School District. On a per student facilities cost basis, the average per student facilities cost impact is (-$12,250) for FUHSD. The greatest facilities cost impacts for FUHSD arise from the Calabazas project with a total project facilities costs impact of (-$410,970) and from the Metropolitan project with a per student impact of (-$13,911). Town Hall Services 17 November, 2005 IS-J.4'/- City of Cuoertino Calabazas Place Develooment Imoact Analvsis Cumulative Fiscal Operating Cost Impacts The cumulative net fiscal operating cost impacts for the five projects analyzed is (-$139,062) for CUSD, with the greatest impact being Calabazas Place (-$56,595). The per student projected operating impact is (-$539). The deficit reflects the assumption that there are certain local revenues that will not increase proportionately with the enrollment generated from new development. In contrast to the elementary district, FUHSD revenues are affected by increases in the property taxes. The District is projected to have net revenue (revenue after deducting costs) of ($791,492) under current assessed values, and ($961,338) under higher estimated assessed values. On a per student fiscal operating cost impacts, the average per student operating cost impact is $5,387 for FUHSD under current assessed values, and $7,094 under higher estimated assessed values. With regard to specific projects, the District is projected to receive net revenues from the Calabazas Place project of ($558,202) under current assessed values, and ($642,027) under higher estimated assessed values. It is clear that it is the size of the Calabazas proj ect that causes it to have both the largest negative facilities cost impact and the largest high school operating surplus. It should be noted that the cumulative impacts are aggregations of our individual project analyses using the assumptions contained in those reports, and represent the development composition at the time plans were approved (Metropolitan and Vallco Rosebowl) or where they are currently in the plan review process. It is possible that the development composition of the projects that are currently under plan review may be altered, resulting in the data assumptions which were used as the basis for these calculations being changed. Town Hall Services 18 November, 2005 IS-2-t./5 ~ , ~ , 11 · ~ f ~ - ~g- ¡ ~ . " . ~ ~ <. ! f~ n ; ~~ ~~ " - 0 . - <" ., r õ 11 ~~ ª ª ª â --. p >"" " - <" ~i .p i H ~ ~ "- :='i¡: ! ¡¡ '0 . · ¡;~ g~ I· -" j¡'" N~ s - ; ,. · ~ · . ~5 ~~ ~~ ì ~ !" ~~ ~ · ª · - - - ¡; ,g= . ~~ 0" ! Ë ¡¡.!! g · i¡¡ ~ ~ ¡; > ~g .0 ~~ ! , i~ ~! - . ~ ~~ ~~ - - ~ <:;¡ ~ " " ,:;; ~ ~ ~ ~~ õ ~~ ; ~ ~ - ~ ð~ - - - ~ ~ ~ - < ~ ¡;¡ ~~ · 0 ~y ª :3 - < ~~ ~~ '" '!i · ~ ~ ª ~ · · · e ¡; ~ ð= ~ ~ð ~ ~~ ~ 0 · .§ ~ oj' ·t oj- .....j" ot § " .. ].s " -. ~ _r<... ...........- " . . -; " ~ § § . . õ ~ 1:':- U;¡:;; Æ~~~~~~ ~~~~ H:q 0" ~'" 0 :~ ~~~~ ~~;~ ;::~::::~":!:!¡... ;;~~.. B~ · ,0 . · "°0,,,"'0 · ~I 0 . 0 ., · " ;:¡~ 0 ¿'i - · . , - - ,; ; , - - · ;: - ;;; " 0 i " 0 · ~ 0 . . < " < " · ~ ~ j . ~ " > .! < ! · ð ï , · 8 ]HU"ï ~ ~ · t ð ~ ,;-; ¡¡ ø ~ ~ ~... r · u . .! .! l'ijij"".s , ., , i " ~¡¡¡¡;¡1.¡¡¡; , ::.; ~::r: 3ð ð ~ · .. ð ð ¡ ! u . ð 0 ~ ~81 J , 0 " , ¡ " .~ . 1 i , ;; G "1 ï · ~ ~ · i . 15" z.tf/p ð 0 IS 0 ! , " · , , ~ , c < · · z z . DRAFT REPORT EXHIBIT E CALABAZAS PLACE FISCAL IMPACT ANALYSIS CUPERTINO, CALIFORNIA Prepared for: Toll Brothers, Inc. Prepared by: Economic & Planning Systems, Inc. December 200S EPS #15165 BERKELEY 250 I Ninth St., Suite 200 Berkeley, CA 94710-2515 www.epsys.com Phone: 510-841-9190 Fax: 5]0_841_9208 y SACRAMENTO Phone" 916-649-8010 Fax: 916-649-2070 Eeonornie & Planning: Systems Real Estate ECQnomics Regional EC07IQmiC$ PllblicFinunce Lond Use Po/icy DENVER Phone: 303-623-3557 Fax: 303_623_9049 15 ·:J17 TABLE OF CONTENTS 1. INTRODUCTION AND SUMMARY OF FINDINGS............................................................. 1 Summary of Key Findings...........................................................................................1 II. PROJECT DESCRIPTION ............... ....................................... ........... .......... .......... .............. 6 III. METHODOLOGY AND ASSUMPTIONS ............................................................................7 General Fund Revenues.................................................... .......... ............ ..................... 7 General Fund Expenditures ................................................. ............ .......... ........... .... 10 ApPENDIX A: Fiscal Model, Alternative A ApPENDIX B: Fiscal Model, Alternative B IS·2-'!? LIST OF TABLES Table 1: Table 2: Table 3: Summary of Project Description..........................................................................2 Summary of Annual Fiscal Impact Analysis...................................................... 3 General Fund 2005/06 and Estimating Factors .................................................. 8 15-21/-1 1. INTRODUCTION AND SUMMARY OF FINDINGS This report describes the results of Economic & Planning System, Inc.'s, (EPS') fiscal analysis of Toll Brothers, Inc.'s proposed Calabazas Place mixed-use development in the City of Cupertino. This fiscal analysis uses an average cost approach to estimate the incremental General Fund costs to the City of providing services to the Project and standard estimating procedures to estimate new revenues. The average cost approach provides a conservative, planning-level estimate of the costs of providing public services to the Project1 The summary of key findings is provided below. Chapter II provides a description of the Project and Chapter III provides a detailed explanation of the methodology and assumptions. Appendices A and B provide the complete fiscal model runs for the two development scenarios evaluated. SUMMARY OF KEY FINDINGS This report evaluates two potential development scenarios for the site, presented in Table 1. The first alternative includes 402 units with a mix of townhomes and stacked flats. A total of 20 percent of these units (80 units) would be affordable senior housing rental units at below-market rental rates. The second alternative includes 369 units with a similar mix of unit types, of which 15 percent (SS units) would be affordable units sold at below-market rates. Site plans under both alternatives also include 112,200 square feet of retail and a 3.5-acre public park. The key findings of the fiscal impact analysis are described below and shown in Table 2. 1. Under both alternatives, the Project will generate a significant fiscal surplus over and above the revenues required to cover the costs to the City of providing public services. The fiscal impact of the Project on the City's General Fund at Project buildout will be positive under both the proposed development scenarios, with the revenues generated by the Project estimated to be greater than the costs of providing additional public services. By buildout, the Project is expected to generate annual revenues of between $619,000 and $62S,000, while General Fund costs will sum to $297,000 to $298,000 annually, as shown in Table 2. The resulting net impact on the General Fund will be an annual positive surplus in the range of $321,000 to $329,000, with General Fund revenues between 108 and 111 percent above General Fund costs. 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'" ;:¡ "' l- I- e.> I- - "' ~ ~ 2 15 -251 Table 2 Summary of Annual Fiscal Impact Analysis Fiscal Impact Analysis of Calabazas Place Project, EPS #15165 Item Alternative A Alternative B Total Proiect General Fund Revenues Property Tax Property Transfer Tax Sales Tax Utility Users Tax Franchise Fees Vehicle License Fee (VLF) Property Tax In Lieu of VLF Fines, Forfeitures, and Penalties Subtotal Revenues $42,093 $15,724 $389,432 $21,769 $40,556 $8.085 $96,919 $10.870 $625,448 $41,737 $15,605 $387,894 $20,4 73 $37,795 $8,144 $96,275 $10.951 $618,873 Total Proiect General Fund Expenditures General Government Community Development Recreation Services Law Enforcement Public Works Streets Grounds (1) Other Subtotal Expenditures $26,729 $26,909 $26,539 $26,717 $19,085 $19,214 $110,516 $111,260 $19,418 $19,549 $57,646 $57,646 $36.656 $36.903 $296,589 $298,199 $328,860 $320,674 111% 108% Net Fiscal Balance Net Fiscal Balance as a Percent of Expenditure (1) The project will include a 3.5 acre park. Source: Economic & Planning Systems, Inc. Economic & Planning Systems. Inc. 12121f2005 3 P:\ 15000s\ 15165to/^Mode^ 15165modal 15 - 252 Draft Report Calabazas Place Fiscal Impact Analysis December 21, 2005 2. Alternative A results in a slightly higher fiscal balance than Alternative B. Alternative A includes a total of 402 units, compared to 369 units under Alternative B; the affordable units in Alternative A are senior rental units with smaller household sizes relative to the for-sale family affordable units included in Alternative B. Overall, Alternative A results in a somewhat greater fiscal balance. The net annual fiscal balance for the two scenarios differs by $8,200, with General Fund revenues at 111 percent above General Fund costs in Alternative A and 108 percent above General Fund costs in Alternative B. This difference is primarily due to the better fiscal balances associated with a greater number of units and fewer persons per household. 3. General Fund revenues will come from a number of sources, though sales tax will make up the majority of the City's new revenues. Sales tax will make the greatest contributions to the new stream of General Fund revenues, approximately $388,000 to $389,000 each year, based on the City of Cupertino's estimated capture of new residents' retail expenditures and anticipated sales per square foot of retail development2 Property tax is expected to generate approximately $42,000 each year at Project buildout. Combined motor vehicle license fees (VLF) and property tax in lieu of VLF will be close to $105,000 under both alternatives. 4. New retail development is expected to attract customers from among residents of the Project, other parts of Cupertino, and neighboring jurisdictions. The new retail development will provide most of the sales tax. Given the proposed high-end nature of the retail development, the limited level of competition in the City, the new residential development at the project, and the location of the retail development close to the eastern edge of the City, the large majority of sales is assumed to be net new sales in the City of Cupertino. In addition to making retail expenditures at the new retail development, City residents will also make some expenditures at other Cupertino retail establishments, adding to the City's sales tax receipts. 2 The capture rate applied is based on estimates of the City's current capture and leakage rates. 4 P:\150005\1516Stol/\Report\ISJ6Sdraftrp/4.DOC /5-253 Draft Report Calabazas Place Fiscal Impact Analysis December 21, 2005 5. Law enforcement (police services) is expected to be the highest General Fund service cost item associated with the Project, followed by public works, general government, community development, and recreation services.' New public safety costs will make up about 37 percent of new General Fund costs at approximately $111,000 each year at Project buildout. Public works costs will comprise a slightly higher proportion of total costs at around $114,000 each year. General government costs are expected to be approximately $26,000 per year. In addition, the Project is expected to generate community development and recreation services costs of around $27,000 and $19,000, respectively. 3 Fire protection services are provided to Cupertino residents by the Central Santa Clara Fire Protection District. 5 P:\ J5()(){}.;\ 15165/oll\R~ort\ J5165draftrpt4_DOC 15~Z.<;'f II. PROJECT DESCRIPTION The Calabazas Place Residential and Retail Project encompasses approximately 25.5 acres. Under development Alternative A, 402 units are planned, of which 322 units would be sold at market rate and the remaining 80 units would be leased at below market rates as affordable senior rental housing. Alternative B includes a total of 369 units, of which 321 would be sold at market rate and 5S would be affordable for-sale units sold below market rate. A 112,200-square foot retail center and a public park of approximately 3.5 acres are also planned as part of the Project. The Project is an infill project located within an area that currently includes a mix of residential, retail, and employment uses. Unit sizes are expected to range from 1,300 to 2,000 square feet. The average household size for these units is assumed to range from an average of 2.45 to 3.5, depending on whether a unit is market rate or below market rate.4 The planned retail space is expected to accommodate one employee per 400 square feet. At Project buildout, the development is expected to accommodate between 930 and 937 new residents and 266 new employees. This is equivalent to a daytime population of between 1,018 and 1,025.5 Based on their review of real estate market data, Toll Brothers expects the market rate units to sell at a weighted average per-unit price of around $857,000 to $900,000. For- sale below-market rate units are expected to sell for a weighted average price of $256,000 per unit (see Table A-I). Senior rental units are expected to have monthly rents ranging from $1,100 to $1,350, equivalent to a capitalized value of about $124,000 per unit. 4 The average household in the City of Cupertino currently includes 2.756 persons according to California Department of Finance data. Market-rate units at the Calabazas Place Project wilt on average, include lower numbers of persons per household due to the smàl1er size and different demographic appeal relative to the average City home. Toll Brothers expects that below-market rate units will have an average of 2.06 persons per household in senior rental units and 3.5 persons per household in for-sale family units. 5 Daytime population is calculated by adding total residential population and one third of employment. 6 P:\ 15000$\ lSJ6Stal/\Repor/\ JSJ65draftrp/4.DOC 15 -255 III. METHODOLOGY AND ASSUMPTIONS This chapter describes the methodology and key assumptions used in estimating the fiscal impacts of the Calabazas Place Project. The analysis is based on a number of sources including the City of Cupertino·s 2005-2006 Adopted Budget; City, County, and State data sources; and EPS' experience in comparable jurisdictions. The analysis describes annual operating costs and revenue impacts on the City's General Fund. All revenue and expenditure forecasts are in constant dollars. For the purpose of evaluating the potential fiscal impact of the Project, this analysis considers impacts at buildout. Fiscal impacts prior to buildout will display similar results but at a smaller scale. Key assumptions and calculations are shown in Appendices A and B. GENERAL FUND REVENUES This section describes the methodology and assumptions used for each General Fund revenue item. Table 3 provides a summary of the City's current General Fund revenues as estimated in the 2005-2006 Adopted Budget as well as impact estimating factors. Project-wide demographic assumptions and detailed estimating factors are presented in Tables A-I through A-4. A general description of the method used for this analysis is provided for each revenue item. Some items are not forecasted because they are not expected to be affected by the Project (e.g., transient occupancy tax). PROPERTY TAX For this estimate, it is assumed that new residential units sold achieve a weighted average per-unit sales price of $8S7,000 for market-rate units, $2S6,000 for below market- rate for-sale units, and a capitalized value of $124,400 for below-market-rate rental units. Annual property tax is 1 percent of assessed value, and the City receives 1.6S percent of property taxes collected in the Project site's Tax Rate Area.6 Taxes are calculated based on the net increase in assessed value from the existing assessed value of the proposed Project site. Property tax is estimated as a net increase from the Project site's existing assessed value of $70 million. The annual property tax forecast at Project buildout under each scenario is illustrated in Tables A-S and B-5. TRANSFER TAX The City will receive property transfer tax for any units that are sold. The City receives $O.5S for every $1,000 of value. It is assumed that in any given year, an average of 10 percent of the residential units will be resold.' The annual property transfer tax forecast at Project buildout is illustrated in Tables A-S and B-5. 6 Based on post-ERAF City allocation for relevant tax rate area. 7 Ten percent is a typical resale rate based on EPS experience with newer high density products. 7 P;\15000s\1516SM/\Report\ISl6Sdro/trpI4.DOC 15~25b Table 3 General Fund 2004/05 and Estimating Factors Fiscal Impact Analysis of Calabazas Place Project, EPS #15165 2005-2006 Percent Adopted Variable Allocation Factor Item General Fund Costs (1) Revenues Property Tax $4.157.000 2% of assessed value Property Transfer Tax (2) nla $0.55 per $1,000 of valuation Sales Tax $9.150.000 1 % of estimated taxable sales Transient Occupancy Tax $1,730.000 - not estimated Utility Users Tax $2,675.000 2% of Utility Bill Franchise Fees $2,300,000 varies; see Table A-7 Rents and Concessions $475,000 - not estimated Vehicle License Fee (VLF) (3) $3,450.000 $8.70 per capita Property Tax In Lieu of VLF (3) varies; see Table A-8 Grants $125,000 - not estimated Inter-governmental Revenue $100,000 - not estimated Permits and Licenses $2,800,000 - not estimated Fines, Forfeitures, and Penalties $625,000 $12 per capita Service Fees $1,285.000 not estimated Other Revenues (4) $5.350.000 - not estimated Totai Revenues $34.222,000 Expenditures General Government (5) $6,742,000 25% $26 per daytime population Community Development $3,347,000 50% $26 per daytime population Recreation Service $2,407,000 50% $19 per capita Law Enforcement (6) $6.969.000 100% $94,176 per officer Public Works Streets & Transportation $2,449,000 50% $19 per daytime population Groundsl Park Maintenance (7) $2,487,000 100% $16,470 per park acre Other (8) $4.623.000 50% $36 per daytime population Total Costs $29,024,000 (1) Percentage of costs that increases with growth, as opposed to fixed costs. (2) The City's budget includes property transfer tax in the category of "Other Tax." Because property transfer taxes will be directly affected by the addition of new homes, future transfer tax revenues resulting from the project are estimated as a separate category. (3) With approval of VLF for property tax swap in 2004, an estimate of $8.70 per capita is assumed for Motor Vehicle License Fee. Property tax in-lieu of VLF, or VLF backfill, is based on growth of assessed value in the city. (4) Includes "other tax" (including property transfer tax). investment earnings, sale of property, park dedication tax, resource recovery, blackberry farm, recreation programs, Senior Center! Sports Center! LCI CIP revenues, and miscellaneous revenues. (5) Includes city council and commissions, manager, attorney, public information, and administrative services (including accounting, City Clerk, and human resources). (6) Police services only. Fire services are provided to Cupertino residents through the Central Santa Clara Fire District. (7) Park land maintenance cost per acre based on "Grounds" portion of Pubiic Works budget. The City maintains approximately 151 acres of park land. (8) Includes Administration. Environmental Programs. Engineering Services, Service Center. Faciiities, General Services, and Fixed Assets Acquisition. ' Source: City of Cupertino Adopted Budget 2005-2006; City Budget Office; Economic & Planning Systems, Inc. Economic & Planning Systems, Inc. 12/19/2005 8 P:\ 15000s\ 15165to/^Mode^ 15165model I 5- 251 Draft Report Calabazas Place Fiscal Impact Analysis December 2.1, 2005 SALES TAX The Calabazas Place Project is expected to generate sales tax in two ways: through purchases made by new residents and through sales generated by the new retail development. It is expected that each new household will spend, on average, 26 percent of its income on taxable goods, depending on income level.8 City of Cupertino residents are estimated to spend 50 percent of their retail expenditures in the City at the current time.9 This analysis assumes that this same overall City capture rate continues and applies to the Project. In addition, it is assumed that, of new residents' retail expenditures within Cupertino, 40 percent will be at the Project's retail stores (particularly local convenience retailers such as grocery stores, drug stores, and eating and drinking places). Because sales generated by new retail development are estimated separately, they are excluded from residents' spending to avoid double counting. The City receives a 1 percent sales tax on taxable retail expenditures in the City. Tables A-6 and B-6 illustrate sales tax forecast from new residents at buildout of each project alternative. Calabazas Place will also include approximately 112,000 square feet of retail space. On average, this retail is expected to generate about $S50 per square foot in sales according to the project developer. Total new sales are reduced to account for the portion of grocery sales that are nontaxable. Given the proposed high-end nature of the retail development, the limited level of competition in the City, the new, adjacent residential development, and the location of the retail development close to the eastern edge of the City, the large majority of sales, about 7S percent, is assumed to be net new sales in the City of Cupertino. The City will receive additional sales tax equal to 1 percent of these net new taxable retail sales. Tables A-6 and B-6 illustrate sales tax forecast from new retail at buildout of each project scenario. UTILITY USERS' TAX Utility users' tax is 2.4 percent of utility bills for all telephone, gas, and electric service (cable television is not subject to the tax). Assumptions regarding typical monthly utility bills per household are illustrated in Tables A-2 and B-2, and the annual utility user's tax forecast at Project buildout is illustrated in Tables A-7 and B-7. 8 Based on Consumer Expenditure Survey published by the U.S. Department of Labor, 2002. Lower inconw households generally spend a higher proportion of their incomes on retail expenditures. 9 EPS estimate based on current taxable sales by Cupertino retail establishments, the existing range of Cupertino retail establishments, and the median income of Cupertino households. 9 P:\ JS(J()()s\ 15165lol/\Repor/\ I5165draflrp/4.DOC / 'i- 2. 5'3 Draft Report Calabazas Place Fiscal Impact Analysis December 21, 2005 FRANCHISE FEES The City collects franchise fees for cable television service in the amount of 5 percent of gross receipts annually; fees for gas and electric are the equivalent of 2 percent of gross receipts annually. Additionally, franchise fees are collected for water at a rate of 2 percent of gross annual receipts, and for garbage at a rate of 12 percent of gross receipts. Assumptions regarding typical monthly utility bills per household are illustrated in Tables A-2 and B-2, and the annual franchise fee forecast at Project buildout is illustrated in Tables A-7 and B-7. MOTOR VEHICLE LICENSE FEES AND IN-LIEU FEES Based on data from the California State Controller's Office, an estimate of $8.70 per capita is assumed for VLF. In addition, the State is expected to offset a reduction in the motor vehicle license fees received by cities in 2004-200S by reimbursing the difference to the City. Property tax in-lieu of VLF, or VLF backfill, is based on growth of assessed value in the City. Based on the increase over Cupertino's 2004-200S base assessed value that is expected to result from the Project, property tax in lieu of vehicle license fees is expected to be around $96,000 to $97,000. These calculations and results are presented in Tables A-8 and B-8. FINES, FORFEITURES, AND PENALTIES The 2005-2006 adopted City budget indicates that the City will receive approximately $625,000, or roughly $12 per capita, in revenue from fines and fees. It is expected that the City will continue to collect fines and fees at this per capita rate (see Tables A-4 and B-4). GENERAL FUND EXPENDITURES This section describes the methodology and assumptions used for the General Fund expenditure items. Table 3 provides a summary of the City's current General Fund expenditures as estimated in the 200S-2006 Adopted Budget as well as impact estimating factors. A general description of the method used for this analysis is provided for each item. GENERAL GOVERNMENT According to the City's adopted budget, the City spends $105 per daytime population to provide general government services, which specifically include the city council and commissions, city manager, attorney, public information division, and administrative ' services (including accounting, City Clerk, and human resources). This analysis assumes that 25 percent of General Government costs are variable and likely to increase 10 P:\15000s\J5165/ol/\Report\15165drllftrpt4.DOC 15 ~25C¡ Draft Report Calabazas Place Fiscal Impact Analysis December 21, 2005 with the addition of new population. Therefore costs resulting from the Calabazas Place Project are estimated at 2S perçent of current expenditures, or $26 per daytime population (see Tables A-4 and B-4). COMMUNITY DEVELOPMENT This category includes various development related services, such as community planning. It is assumed that 50 percent of the department's costs will be affected by the Project and that the remaining 50 percent are fixed costs that will not be affected. Therefore an estimating factor of 50 percent of the current per-daytime population expenditure (or $26 per daytime population) is used to forecast future spending (see Tables A-4 and B-4). RECREATION SERVICES The core service provided by this department is management of the City's recreation and community centers, including the Quinlan Community Center, Monta Vista Recreation Center, Cupertino Sports Center, and Senior Center. It is assumed that 50 percent of Recreation Services costs are fixed, resulting in a per-daytime population cost of $19 (see Tables A-4 and B-4). PUBLIC WORKS This department provides various road maintenance-related services, grounds and park maintenance, and other services such as facility maintenance, engineering, and environmental programs. Streets and transportation costs are assumed to be 50 percent fixed, resulting in expenditures of $19 per daytime population. Similarly, "Other" Public Works expenditures (including Administration, Engineering Services, General Services, and other costs) are assumed to be SO percent fixed, resulting in expenditures of $36 per daytime population. The Public Works department is responsible for all grounds maintenance, including maintenance of the City's 151 acres of park land. The Project site plan includes a 3.5-acre public park, which will be maintained by the City. Based on current grounds maintenance expenditures, it is estimated that maintenance of this park will cost approximately $16,SOO per acre. Estimated annual costs are shown in Table A-4. LAW ENFORCEMENT Law enforcement in Cupertino is provided through a contract with the Santa Clara County Sheriff's Office. As the Project is developed, public safety officers will need to be added to serve the increase in population. It is assumed that the current service level 11 P;\ 15000s\ 15165tol/\Rcpor/\ J516Sdraftrpt4.DOC 15, ZflD Draft Report Calabazas Place Fiscal Impact Analysis December 21,2005 of 1.15 public service officers per 1,000 daytime population would be maintained and applied to the Project, resulting in a need for 1.17 new officers. An estimated annual average cost of $94,000 per officer (including costs associated with other personnel and materials) is applied to the projected number of new public safety officers that would be required by the Project's new population at buildout. Forecasted law enforcement expenditures are illustrated in Table A-9. Cupertino is part of the Santa Clara Central Fire District, which collects a portion of property taxes from residents of the District. The City therefore does not experience costs associated with fire protection and prevention. 12 P:\ I50005\15165IQI/\Repor/\ 15165drllftrp/4.DOC , 5 - 2{¡;f EeOllornie & Pla.nning Systetns RetÙEstaJeEronomirs RegicnalEronomics Public Finanœ Land Use Policy ApPENDIX A: FISCAL MODEL 13 IS-2(pZ Table of Contents Appendix Table Number, Name & Description Fiscal Impact Analysis of Calabazas Place Project, EPS #15165 Table # Name Proiect Description Table A-1 Detailed Project Description & Assumptions Table A-2 Description of Typical New Household Citywide Demoqraphic Data Table A-3 Citywide Demographic Data Impact EstimatinQ MethodoloQv Table A-4 General Fund 2005/06 and Estimating Factors Revenues Table A-5 Table A-6 Table A-7 Table A-8 Property Tax Calculation Sales Tax Calculation Utility Tax Calculation Vehicle License Fee (VLF) Calculation Expenditures Table A-9 Law Enforcement Expenditures Net Table A-10 Summary of Fiscal Impact Analysis Economic & Planning Systems, Inc. 12119/2005 14 P:\ 15OO0s\ 1516Sto/^Mode^ 15165model 15 -2),3 .. u " ·õ ...t ¡¡ " ._ u õ,.!! 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OOOLO~<OO Mvc.oM.q-O<D EF.HA· {:f.HA· N V ....Ñ .... i'ã ~ :5 .c ë o (ij E Q) ~ ,.. Q) ~ a.~ ro ~ Q) " ïii Q) a:: .... row 15= ->.>' Q) .Q £!.~ ª c>. -...- O:!::::-:i5::>::> ..cü:= -- m ã:> a.E.c ~ 2:! j!! 0...(1)000.000 .- mã)~ ro rot-I- g;::¡: I- W CJ U I- 16 if) CL W UJif) CLCL WW Ó E å ó ó E E E ~ Q) a. o o o N .... ~ ~ ~ Q) Q) Q) a. a. a. N~m 0........ 000 .... .... i'ã Q) en ro .D (ij CJ .c - §: § E it ._ 4J .Do. 0- 0= ~ Eëã Q) ð3.è:' ~ w= co -05 .- C ~øroro Q)-(I)Õ EltIcul-- E::¡: CJ o U if) CL W .... o o .... õ ,..c ~ .2 :ëm .~ "3 ro U >~ .c enQ) :.ë£ .8 E Q) e ::¡- ,,= --:.ã Æ Q) .D C ro 0 U.c Q) a. > ïii U Q) ~ Ó E "5 o '" Q) õ iû cÆ ",.. "Sa.; o > ;: õ~ ~ Æ.(1) e '" CL § Q) U .c - - Q) " o E ~ Q) a. i'ã Q) en ro .D ro CJ .E ~,g .~ 2 en Q)c£ '" ro ~ffia) .D _ a. ~ ~-; . (I) 0 en >'Q)"-Q) c>Q)c o'(i) E ëñ Q) u E ~ UQ)O..c 'S ~ u >. L._ Q)..c Q) C:.c (J) CJ')::J... (1) Q) (J) en (J) m Q) Q):3 - E E Q) CJ) ::J ::I C ~ (f) cn 0 -(/)OO..s:: oS « < a. £§:§: cJ oS <ñ E Q) ~ '" ,.. UJ en C .C' C ro ã: oð U ·Ë o C o U w ¡,; U :; o if) :¡¡ o E ~ ~ ~ < .¡¡ ,¡: " " ~ ~ ~ ¡j :;: ~ ~ Q. :g '" N ~ ~ oj .s .; E " a- D> c ." c Il "' " .~ c o .\j IS-21P5 Table A-3 Citywide Demographic Data Fiscal Impact Analysis of Calabazas Place Project, EPS #15165 Item Amount Sources Households (2005) Single Family Housing Units Multi Family Housing Units Population (2005) Persons per Household Total Employment Existing Daytime Population (1) 19.223 14,176 5,539 53,452 2.756 32,320 64,225 DoF 2005 DoF 2005 DoF 2005 DoF 2005 DoF 2005 ABAG 2005 EPS (1) Daytime population is calculated by adding total residential population and one third of total employment. Source: California Department of Finance; Association of Bay Area Governments; Economic and Planning Systems, Inc. Economic & Planning Systems, Inc. 12f1912005 17 P:\ 15000s\ 15165folfIMode^ 1516Smodel 15-2(P~ TableA-4 General Fund 2005/06 and Estimating Factors Fiscal Impact Analysis of Calabazas Place Project, EPS #15165 2005-2006 Percent Table Adopted Variable Allocation Factor Project Item Ref. General Fund Costs (1) Total Revenues Property Tax TableA-5 $4,157,000 1.7% of assessed value $42,093 Property Transfer Tax (2) TableA-5 11/' $0.55 per $1,000 of valuation $15,724 Sales Tax TableA-6 $9,150,000 1 % of estimated taxable sates $389,432 Transient Oçcupançy Tax $1,730,000 - nolestimated UtiIJty Users Tax TableA-7 $2,675,000 2% of Utilily Bill $21,769 Franchise Fees TableA-7 $2,300,000 varies; see Table A·7 $40,556 Property Rentals $475,000 not estimated Vehicle license Fee (VLF) (3) TableA-8 $3,450,000 $8.70 percapila $8,085 Property Tax In lieu ofVLF (3) TableA-8 varies; See Table A-8 $96,919 Grants $125,000 not estimated Other Inter.govemmental Revenue $100,000 not estimated Permits and licenses $2,800,000 noteslimated Fines and Forfeitures $625,000 $12 per capita $10,870 Charges for Services $1,285,000 not estimated Other Revenues (4) W&QQQ - notestimaled Subtotal Revenues $34,222,000 $625,448 ExpendItures General Government (5) $6,742,000 25% $26 per daytime population $26,729 Community Development $3,347,000 50% $26 per daytime population $26,539 Recreation Services $2,407,000 50% $19 per daytime population $19,085 Law Enforcement TableA-9 $6,969,000 100% $94,176 per officer $110,516 Public Works Streets & Transportation $2,449,000 50% $19 per daytime POPulation $19,418 Grounds( Park Maintenance (6) $2,487,000 100% $16,470 per park acre $57,646 Other (7) ~ 50% $36 per daytime population $36,656 SubtolalExpenditures $29,024,000 $296,589 Total Net (8) $328,860 (1) Percenlage of costs that increases with growth, as opposed to fixed costs. (2) The City's budget includes property transfer tax in the category of "Other Tax." Because property transfer taxes will be directly affected by the addition of new homes, future transfer tax revenues resulting from the project are estimated as a separate category, (3) With approval of VLF for propertv lax swap in 2004, an estimate of $8.70 per capita is assumed for Motor Vehicle license Fee. Property tax in-lieu of VlF, or VlF backfill, is based on Qrowth of assessed value in the citv. (4) Includes "other lax" (including property transfer tax, business license fees, property transfer lax, construction tax, and housing mitigation fees), investment eamings, sale of property, park dedication tax, resource recovery, Blackberry Farm, recreation programs, Senior Center/ Sports Centerl LCJ CIP revenues, and miscellaneous revenues. With the exception of property transfer tax, these revenues are not expected to be significantly jmpacted by the project. Property transfer tax is estimated separately. (5) Inetudes city council and commissions, manager, atlomey, public information, and administrative services (jncluding accounting, City Clerk, and human resources.) (6) Assumes current maintenance of 151 acres of parkland. The project will include a 3.5-acre public park. (7) Includes Administration, Engineering, Service Center Administration, and Facilities. (8) Does not include $623,000 State Revenue Raid or $4,864,000 in "Operating Transfers Out." Source: City of Cupertino Adopted Budget 2005-2006; City Budget Office; Economic & Planning Systems, Inc. Eco<J...m:&P!ðMÍIIgSysrems.IIIc.I2/21/2005 18 P.\15/)OO>\151651<>/111.1OdM1516.'m>de1 /5 -~I; 1 Table A-5 Property Tax Calculation Fiscal Impact Analysis of Calabazas Place Project, EPS #15165 Item Assumptions Project Total Total Assessed Value (AV) (1) See Table A-1 $325,154,286 Existing Assessed Value of Site (2) $70.043,780 Assessed Value, Net Increase $255,110,506 Net Property Tax Total 1% ofAV $2,551,105 City Prop. Tax Share (3) 1.65% of Property Tax $42,093 Property Transfer Tax (4) $0.55 per $1,000 of AV 10% turnover $15,724 (1) Takes assurned market values shown on Table 2 and applies them to the number of total units. (2) Santa Clara County Assesso~s Office data for APNs 316-20-085, 316-20-078, 316-20-079, and 316-20-074. (3) Property tax allocation factor for TRA 13-003, after ERAF retention. County of Santa Clara Finance Agency Controller-Treasurer Department. (4) Transfer tax is charged at a rate of $0.55 per $1 ,000 of assessed valuation. Assumes a turnover rate of 10 percent for residential property, Le., property changes hands approximately once every ten years. Based on EPS experience, this is a typical turnover rate for newer high-density products. Source: City of Cupertino: County of Santa Ciara; Economic & Planning Systems, Inc. Economic & Planning Systems, Inc. 12121f2005 19 P;\ 150008\ 15165to/^-Mode^ 15165mvdel I S'2(Pg Table A-6 Sales Tax Calculation Fiscal Impact Analysis of Calabazas Place Project, EPS #15165 Assumptions Amount SALES TAX GENERATED FROM NEW HOUSEHOLDS Income Assumotions Average unit selling price Mortgage % (1) Total mortgage amount Annual mortgage paymenU Annual rental payment (2) Housing cosUhousehold income Required household income/unit Market Rate $856,941 80% $685.553 $52,498 35% $149.994 Below Market Rate $13.929 30% $46.430 Averaoe HH Taxable Retail Exo. (3) % of Income Total 26% $39.589 26% $12.2S5 Total Net New EXDenditures CaDtured bv CUDertino Expenditures per New Household Captured by Cuper 50% of taxable expenditures (4) Expenditures per New HH Outside Project Area Retai 60% of taxable expo in Cupertinc $19,794 $11,877 $6.127 $3,676 Total New Retail Sales New Households 322 $3.824,283 80 $294.110 Total Sales Taxes From New Households Total New Sales Tax 1 % of taxable sales $38.243 $2.941 Total Sales Tax from New Households $41,184 SALES TAX GENERATED FROM NEW RETAIL Total New Occupied Retail Space (Sq. Ft.) Total New Sales Non-Taxable Sales (6) Total New Taxable Sales Sales Shifted from Existing Cupertino Retail Net New Taxable Sales Total Sales Tax Generated from New Retail Total Sales Tax Generated From the Project (7) 1 % of taxable sales 106.590 $58.624.500 $12.191.465 $46.433.035 $11.608,259 $34.824,776 $348,248 $389,432 $550 per Sq. Ft. 65% of grocery (34,102 Sq. Ft.) 25% (1) Assumes 20 percent down payment. (2) Assumes 6.5 percent interest rate and 30 year mortgage period in the case of for~sale units. Annual rent (Alternative A. affordable senior units) based on monthly rental rates provided by Toll Brothers. (3) Based on Bureau of Labor Statistics Consumer Expenditure Survey (2003-2004). (4) Assumes 50 percent of taxable retail spending by Cupertino residents is captured by the retailers within the City. This estimate is based on taxable retail sales per capita as reported by the Board of Equalization for the City of Cupertino and average per capita spending on retail based on consumer spending patterns as reported by the Bureau of Labor Statistics (5) Assumes that 40 percent of taxable retail spending in Cupertino by new residents is generated from new retail. calculated separately. (6) Assumes that 65 percent of grocery food purchases are non~taxable. (7) Represents combined new City sales taxes from the households in below market rate and market rate units and from new retail space. Source: State Board of Equalization, U.S. Bureau of Labor Statistics; Economic and Planning Systems, Inc. Economic & Planning Systems.lnc_ 12/19/2005 20 P:\ 15000Sl 15165to/AMode^ 151 65m0del I S~ z.~~ Table A-7 Utility Tax Calculation Fiscal Impact Analysis of Calabazas Place Project, EPS #15165 Item Project Total Utility Tax: 2.4% Annual Utility Bill Per Home (1) Tax per Home Annual Utility Bill per Commercial Sq. Ft. (1) Tax per Sq. Ft. $1,620 $39 $2.28 $0.05 Total Utility Taxes $21,769 Franchise Fees (2): Residential Uses Cable Annual Cable Bill Per Home Franchise Fee per Home Total Cable Gas, Electric, & Water Annual Gas, Electric, & Water Bill Per Home Franchise Fee per Home Total Gas, Electric, & Water Garbage Annual Garbage Bill Per Home Franchise Fees per Home Total Garbage 5% $480 $24 $9,648 2% $1,500 $30 $12,060 12% $240 $29 $11,578 Commercial Uses (3) Gas, Electric, & Water Annual Gas, Electric, & Water Bill per Sq. Ft. Franchise Fee per Sq. Ft. Total Gas, Electric & Water Garbage Annual Garbage Bill per Sq. Ft. Franchise Fee per Sq. Ft. Total Garbage Total Franchise Fees 2% $2.28 $0.05 $5,116 12% $0.16 $0.02 $2,154 $40,556 (1) Includes electricity, gas, and phone bills. Excludes cable service, because cable is not subject to utility users tax. (2) Calculated on cable, gas, electric, water, and garbage services. (3) Assumes the commercial tenants from the Project would not receive cable; due to high variability of phone uses by business type, this model conservatively leaves out phone bill from the calculation. Source: City of Cupertino: Economic & Planning Systems, Inc. Economic & Planning Systems, Inc. 12f1912005 21 P:\ 150005\ 15165tolf\Mode^ 15165model I S-Z-7Ò Table A-8 Vehicle License Fee (VLF) Calculation Fiscal Impact Analysis of Calabazas Place Project, EPS #15165 Item Amount Vehicle License Fee: 2005-2006 Motor Vehicle in-Lieu Fee Revenue (1) per Capita $457,670 $8.70 Cumulative Project Population 930 Total Vehicle License Fee $8,085 Property Tax in-lieu of VLF (2): Project Assessed Value at Buildout $2,930,081 $9,830,118,116 $325,154,286 2004-2005 Property Tax in lieu of VLF (Base Value) (2) 2004-2005 Assessed Value (Base Value) (3) % Increase in Assessed Value 3.3% Total Property Tax In-Lieu of VLF $96,919 (1) 2005-2006 Vehicle License Fee (VLF) amount from California State Controller Office. (2) Property tax in-lieu of VLF calculation is based on method provided by the Accounting Standards Committee of the California State Association of County Auditors. Actual calculation may vary. The 2004-2005 fiscal year is used as base year to project the Property Tax in-lieu ofVLF. (3) Estimate based on average annual growth from historical assessed value from the City of Cupertino. (Comprehensive Annual Financial Report, 2004) Source: City of Cupertino; CA State Controller Office, Economic & Planning Systems. Inc. Economic & Planning Systems, Inc. 1212112005 22 P:\ 150008\ 15165to/AMode^ 1516Smodel IS - Z 71 Table A-9 Law Enforcement Expenditures Fiscal Impact Analysis of Calabazas Place Project, EPS #15165 Item Amount Existing Officers 2004 (1) Officers per 1000 Daytime Population 74 1.15 Cumulative Project Daytime Population 1,018 1.17 Total New Officers Required Expenditure per Officer $6,969,000 $94,176 $110,516 Annual General Fund Expenditure Total Cost (1) Law Enforcement services are provided under contract with the Santa Clara County sheriff's office. 74 officers are assigned to the City of Cupertino. Source: Santa Clara County Sheriff's Office; City of Cupertino: Economic & Planning Systems, Inc. Economic & Planning Systems, Inc. 12/19/2005 23 P:\15000s\ 15165tolfIMode^ 15165model IS - ~ 72 Table A-10 Summary of Fiscal Impact Analysis Fiscal Impact Analysis of Calabazas Place Project, EPS #15165 Item Total Proiect General Fund Revenues Property Tax Property Transfer Tax Sales Tax Utility Users Tax Franchise Fees Vehicle License Fee Property Tax In Lieu of VLF Fines, Forfeitures, and Penalties Subtotal Revenues Total Proiect General Fund Expenditures General Government Community Development Recreation Service Public Safety Public Works Streets and Traffic Management Groundsl Park Maintenance Other Subtotal Expenditures Net Fiscal Balance Net Fiscal Balance as a Percent of Expenditure $42,093 $15,724 $389,432 $21,769 $40,556 $8,085 $96,919 $10.870 $625,448 $26,729 $26,539 $19,085 $110,516 $19,418 $57,646 $36.656 $296,589 $328,860 111% Economic & Planning Systems, Inc. 12121/2005 24 P~15000~15165toMMode^15165modm 1'5-2.73 Eeonomie & Planning Systems Rer:dEstateEoonomirs Regionr:d Ecorwmics P"blir Fioumce Land Use Policy ApPENDIX B: FISCAL MODEL 25 15-2.7'1 Table of Contents Appendix Table Number, Name & Description Fiscal Impact Analysis of Calabazas Place Project, EPS #15165 Table # Name Proiect Description Table B-1 Detailed Project Description & Assumptions Table B-2 Description of Typical New Household Citywide Demoqraphic Data Table B-3 Citywide Demographic Data Impact Estimatina Methodoloav Table B-4 General Fund 2005/06 and Estimating Factors Revenues Table B-5 Table B-6 Table B-7 Table B-8 Property Tax Calculation Sales Tax Calculation Utility Tax Calculation Vehicle License Fee (VLF) Calculation Expenditures Table B-9 Law Enforcement Expenditures Net Table B-10 Summary of Fiscal Impact Analysis Economic & Planning Systems, Inc. 12119f2005 26 P:\15000s\ 15165to/^Mode^ 15165modef I , - z 75 ., "' ~ on ~ .. 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" o ~ ~ ~ :: -1: ~ " ~ ~ ':? -¡;; o o o ':? < Q. <3 c: uî E Q) 1ij » (j) Q) c: ." c: ., ã: oð " E o c: o " W ¡¡; " :; o (j) ~ o o N ¡¡¡ § ..; .s '" E " ~ '" o ." o ij' .. " .~ o o L\J 15-277 Table B-3 Citywide Demographic Data Fiscal Impact Analysis of Calabazas Place Project, EPS #15165 Item Amount Sources Households (2005) Single Family Housing Units Multi Family Housing Units Population (2005) Persons per Household Total Employment Existing Daytime Population (1) 19,223 14,176 5,539 53,452 2.756 32,320 64,225 DoF 2005 DoF 2005 OaF 2005 DoF 2005 DoF 2005 ABAG 2005 EPS (1) Daytime population is calculated by adding total residential population and one third of total employment. Source: California Department of Finance; Association of Bay Area Governments: Economic and Planning Systems, Inc. Economic & Planning Systems, Inc. 12J1912005 29 P:\ 15OO0s\ 15165to1Mfode^ 15165model 15-27"% Table 8-4 General Fund 2005106 and Estimating Factors Fiscal Impact Analysis of Calabazas Place Project, EPS #15165 2005-2006 Percent Table Adopted Variable Allocation Factor Project Item Ref. General Fund Costs (1) Tolal Revenues Property Tax TableB-5 $4,157,000 1.7% of assessed value $41,737 Property Transfer Tax (2) TableB-5 ",. $0.55 per $1,000 of valuation $15,605 Sales Tax TableB-6 $9,150,000 1 % of estimated taxable sales $387,894 Transient Occupancy Tax $1,730,000 - not estimated UlilityUsersTax Table B-7 $2,675,000 2% of Utility Bill $20,473 Franchise Fees TableB-7 $2,300,000 varies; see Table B-7 $37,795 Property Rentals $475,000 - notestimaled Vehicle license Fee (VLF) (3) TableB-8 $3,450,000 $8.70 percapita $8,144 Property Tax In Lieu of VLF (3) TableB-8 varies; See Table B-8 $96,275 Grants $125,000 not estimated Other Inter-governmental Revenue $100,000 - not eslimated Permits and licenses $2,800,000 . not estimated Fines and Forfeitures $625,000 $12 per capita . $10,951 Charges for Services $1,285,000 not estimated Other Revenues (4) ~ . not estimated Subtotal Revenues $34,222,000 $618,873 Expenditures General Government (5) $6,742,000 25% $26 per daytime population $26,909 Community Development $3,347,000 50% $26 per daytime population $26,717 Recrealion Services $2,407,000 50% $19 per daytime population $19,214 law Enforcement TableB-9 $6,969,000 100% $94,176 per officer $111,260 Public Works Streets & Transportation $2,449,000 50% $19 per daytime population $19,549 Grounds! Park Maintenànce (6) $2,487,000 100% $16,470 per park acre $57,646 Other(7) w.u.ooo 50% $36 per daytime population $36,903 Sublotal Expenditures $29,024,000 $298,199 Total Net(S) $320,674 (1) Percentage of costs that increases with growth. as opposed to fixed costs. (2) The City's budget includes property transfer lax in the category of "Other Tax." Because property transfer taxes will be directly affected by the addition of new homes, future transfer tax revenues resulting from the project are estimated as a separate category. (3) With approval of VLF for property tax swap in 2004. an estimate of $8.70 per capita is assumed for Molar Vehicle license Fee. Property tax in" ieu of VlF. or VlF backfill. is based on arowth of assessed value in the city. (4) Includes "other tax" (including property transfer tax, business license fees, property transfer tax, construction tax, and housing mitigation fees), investment eamings, sale of property, park dedication tax, resource recovery, Blackbeny Farm, recreation programs, Senior Centerl Sports CenterJ lCl CIP revenues, and miscellaneous revenues. With the exception of property transfer tax, these revenues are not expected to be significantly impacted by the project. Property transfer tax is estimated separately. (5) Indudes city council and commissioos, manager, attorney, public information, and administrative services (including accounting, City Clerk, and human resources.) (6) Assumes current maintenance of 151 acres of parkland. The project will Include a 3.5-acre public park. (7) Includes Administration, Engineering, Service Center Administration, and Facilities. (8) Does not include $623,000 State Revenue Raid or $4,864,000 in ·Operating Transfers Out" Source: City of Cupertino Adopted Budget 2005-2006; City Budget Office; Economic & Planning Systems, Inc. Economic&Phlflfllngsysrems./tK:.T1l21/2005 30 P.'T5OOOs\ 5 6~j5 65mode1 /5-2-7f Table 8-5 Property Tax Calculation Fiscal Impact Analysis of Calabazas Place Project, EPS #15165 Item Assumptions Project Total Total Assessed Value (AV) (1) See Table B-1 $322,992,750 Existing Assessed Value of Site (2) $70.043.780 Assessed Value, Net Increase $252,948,970 Net Property Tax Total 1% ofAV $2,529,490 City Prop. Tax Share (3) 1.65% of Property Tax $41,737 Property Transfer Tax (4) $0.55 per $1,000 of AV 10% turnover $15,605 (1) Takes assumed market values shown on Table 2 and applies them to the number of total units. (2) Santa Clara County Assessor's Office data for APNs 316-20-085, 316-20-078, 316-20-079, and 316-20-074. (3) Property tax allocation factor for TRA 13-003, after ERAF retention. County of Santa Clara Finance Agency Controller-Treasurer Department. (4) Transfer tax is charged at a rate of $0.55 per $1,000 of assessed valuation. Assumes a turnover rate of 10 percent for residential property, i.e., property changes hands approximately once every ten years. Based on EPS experience, this is a typical turnover rate for newer high-density products. Source: City of Cupertino; County of Santa Clara; Economic & Planning Systems, Inc. Economic & Planning Systems, Inc. 12/21J2005 31 P:\ 150005\ 15165to1NAode^ 15165model I 5 ~ "2 "36 Table B·6 Sales Tax Calculation Fiscal Impact Analysis of Calabazas Place Project, EPS #15165 Assumptions Amount SALES TAX GENERATED FROM NEW HOUSEHOLDS Income Assumotions Average unit selling price Mortgage % (1) Total mortgage amount Annual mortgage payment! Annual rental payment (2) Housing cost/household income Required household income/unit Market Rate $8S9,878 80% $687.902 $S2.678 35% $1S0,508 Below Market Rate $254.945 80% $203,9S6 $15.618 30% $52,062 Averaae HH Taxable Retail Exc. (3) % of Income Total 26% $39.725 26% $13,741 Total Net New Exoenditures Cactured bv Cucertino Expenditures per New Household Captured by Cuper 50% of taxable expenditures (4) Expenditures per New HH Outside Project Area Retai 60% of taxable expo in Cupertinc $19,862 $11.917 $6.870 $4,122 Total New Retail Sales New Households 314 $3,737,880 55 $226.72S Total Sales Taxes From New Households Total New Sales Tax 1 % of taxable sales $37.379 $2,267 Total Sales Tax from New Households $39,646 SALES TAX GENERATED FROM NEW RETAIL Total New Occupied Retail Space (Sq. Ft.) Total New Sales Non·Taxable Sales (6) Total New Taxable Sales Sales Shifted from Existing Cupertino Retail Net New Taxable Sales Total Sales Tax Generated from New Retail Total Sales Tax Generated From the Project (7) 1 % of taxable sales 106.590 $58,624,500 $12.191.465 $46.433.035 $11,608,259 $34.824.776 $348,248 $387,894 $550 per Sq. Ft. 65% of grocery (34,102 Sq. Ft.) 25% (1) Assumes 20 percent down payment. (2) Assumes 6.5 percent interest rate and 30 year mortgage period in the case of for-sale units. Annual rent (Alternative A, affordable senior units) based on monthly rental rates provided by Toll Brothers. (3) Based on Bureau of Labor Statistics Consumer Expenditure Survey (2003·2004). (4) Assumes 50 percent of taxable retail spending by Cupertino residents is captured by the retailers within the City. This estimate is based on taxable retail sales per capita as reported by the Board of Equalization for the City of Cupertino and average per capita spending on retail based on consumer spending patterns as reported by the Bureau of Labor Statistics (5) Assumes that 40 percent of taxable retail spending in Cupertino by new residents is generated from new retail, calculated separately, (6) Assumes that 65 percent of grocery food purchases are non-taxable. (7) Represents combined new City sales taxes from the households In below market rate and market rate units and from new retail space. Source: State Board of Equalization, U.S. Bureau of Labor Statistics; Economic and Planning Systems, Inc. E"cQnQmic & Planning Systams, Inc. 1211912005 32 P.~ 1500081 151651o/AModaA 15165mcx1a/ IS' zit EXHIBIT F !2 ~ < ~ ~ '" " ~ ~ " OJ o ~ .. < ~ a. :J: (") (") (t) g) 0 c ::iE :::J "0 - (') (1) (t) (1) a ...... log "'0 ...... . L._ .... :::J :~j¡ c 0 "'t'J m - (") Q) en ;:::¡: Q) (") .' 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'< ",8 g - ~1~~ [ q ~t ~ w ~ ¡ ~ W 11 " I (~ ~ ' ~ ~ ~ ~ '0" I·, I / / EXHIBIT H "" :>:I~ >~öI ~Ië! ><;;'g' ~\~ 5- !is §!~~ g¡!~ ~~~~ ~; ~ ;~ ~~~ ~~ ~~~~ !~ ~ ~~ ñ~~ ~~ S!:o~.. ...," .... 6'''' C:" -r<! §~~R ~& ~~ ~~ ~~ ~-¡fE ~ :g ¡;;- ~ ~ â ¿ '" ! ¡ ~ ! l~ e.L L-k:- L Ll ~I J I' 1 u ~ JL ~ ""~ g;;;¡;~ ~ . 8§ g;8~ > § ~ ~ ~ "'''< ~ . . :><;"¡;.:::: :s:: _. 0 ê::8o -J I ~' ¿ I- - ~ of'.-·. c....- -, I --~----=:::::: I S~Z.8 Bill Roberts Director. Real Estate Real Estate and Workplace Services 650.857.2183 Tel 650.857.7103 Fox b~1 roberts@ho com .. Hewlett-Pock.ard Company 3000 Hanover Street Polo Alto. CA 9430+0890 'NWW.hp.com ¡ n v . n t EXHIBIT I 6 January, 2006 Mr. Steve Piasecki Director of Community Development City of Cupertino 10300 Torre Avenue Cupertino, CA 95014 Re: 19191 Vallco Parkway, Cupertino, CA Dear Steve: In relation to Hewlett-Packard's existing property at 19191 Vallco Parkway, currently the subject of a rezoning application by Toll Brothers, let me provide the following background and comments as it relates to the building's occupancy, functionality and marketability: BuDding Oecupaucy HP became involved with the subject building through the HP/Compaq merger in 2002. At the time of the merger, the following issues were relevant: · The building had been 100% vacated by Compaq and subleased to COmmerce One. Significant financial problems for Commerce One resulted in a sublease termination in 2003. · HP was consolidating into properties on the north side of Cupertino. · The building configuration and build-out did not meet HP's needs. · HP categorized the building as surplus real estate. · The probability ofHP re-occupying the building was 0%. BuDding Functionality The building is over 25 years old and was developed for Tandem to accommodate R&D and light manufacturing. By today's standards, the building's functionality is limited due to the large floor plates that are not readily divisible, the more limited expansion opportunities in adjacent office buildings compared to office buildings to the north of 280, and the required investment to improve the structwal and building systems. I '5 ~ z.! S 6 January. 2006 Page 2 .e Hewlett-Packard Company 1234 Street Nome. Su1te 123 Moll Slop OOObx City Nome. CA 12345-6789 www.hp.com I n v . n t Marketability Considerations With this as internal background, a number of external factors influenced our decision on what to do with this surplus property. · The City favored a revitalization plan for south Cupertino (i.e. Heart of the City Plan). · HP added the subject property to the Toll Brothers transaction only when it became clear that this would be the only way to achieve the much higher amenity allotments required by the City on the 17 acre vacant land parcel (a 3.5 acre park instead of the code-required 2 acres and 8.3 acres of retail up substantially from the original proposal of I acre). This approach was encouraged by the City. · HP's general preference is to sell a property "as-is". We recently sold three office buildings north of Interstate 280 along Tantau Avenue and viewed these as successful transactions. Selling the subject property in "as-is" condition in 2003 would likely have provided a higher Net Present Value to HP as compared to the current situation. We made an exception in this case in order to provide a better overall master plan that complemented the adjacent uses and was aligned with the city's goals for this area of Cupertino. Please let me know if we can be of further assistance in relation to any of these issues. Bill Roberts Director, Real Estate Hewlett-Packard Company Ce: Gary Chao, City of Cupertino Kelly Snider, Toll Brothers Inc. IS, 2ßb CITY OF CUPERTINO 10300 Torre Avenue, Cupertino, California 95014 DEPARTMENT OF COMMUNITY DEVELOPMENT REPORT FORM Application: U-2005-15, TM-2005-04, Z-2005-04, Agenda Date: January 26, 2006 EXC-2005-18, EA-2005-07 Applicant (s): Toll Brothers Property Location: APN#s: 316-20-074, 078, 079, 085 - North of Stevens Creek Boulevard and South of 1-280 between Tantau Avenue and Finch Avenue. APPLICATION SUMMARY: Toll Brothers, in conjunction with its retail shopping center development partner, Keenan-Bariteau, proposes to develop the 26 acre Hewlett Packard property located at Stevens Creek Boulevard and Finch Avenue. The proposed mixed-use development will consist of the following: . Two residential options encompassing 369 - 402 homes as follows: o Option A · 322 residential condominium units, and · 80 senior apartments, equaling 20% Below Market Rate (BMR) 402 total units o Option B · 314 condominium units, and · 55 BMR units equaling 15% BMR 369 total units · Retail shopping center encompassing approximately 112,200 square foot · 3.5 acre public park · Demolition of a 150,000 square foot industrial office building considered functionally obsolete by the applicant The environmental analysis and technical reports considered both options; therefore the Commission has the ability to choose either option. The project as proposed requires the following approvals: 1. An exception to the Heart of the City Specific Plan to allow front yard setbacks of less than 35 feet to an average of 35 feet with a minimum of 26 feet. 2. Rezoning to change from P (CG,O,ML,Hotel)/P (MP) to P(Com, Res) & P (PR) 3. Use Permit - to construct six buildings totaling 112,000 square feet of retail space and up to 402 residential units. 4. Tentative Map - to subdivide four existing parcels totaling 25.5 acres into five parcels (2.45, 3.5, 8.37, 3.08, 7.97 acres). I,-~n Applications: Z-2005-04, U-2005-15, EXC-2005-18, EA-2005-07, TM-2005-04 Calabazas Place January 26, 2006 Page 2 5. Site and Architectural review will be submitted subsequent to this review once the use permit and rezoning applications have been reviewed and approved. RECOMMENDATION At the previous meeting, staff identified four key policy related issues and several technical issues that would have to be addressed prior to the Commission making a recommendation. Due to time constraints, the Commission was not able to discuss those issues at the last meeting. The Commission should continue the policy discussion and if the Commission finds these issues are sufficiently addressed, then the discussion should focus on the technical issues relating to the project. Please refer to the previous staff report dated January 10, 2006 for detailed discussion and staff review. The model resolutions should be considered as preliminary drafts that may need significant alterations depending on the direction of the Commission discussion. Submitted by: Gary Chao, Associate Planner ~ . Approved by: Steve Piasecki, Director of Community Developmen~ ENCLOSURES Model Resolutions Initial Study - already provided to the Commission January 10,2006 Planning Commission Staff Report (with no attachments) Exhibit J: Zoning Plat Map for the Senior Option A Lot 6 G: \ Planning \ PDREPORT\ pcUsereports \ 200Sureports \ U-200S-1Sb.doc 2 /5-211 U-2005-15 CITY OF CUPERTINO 10300 Torre Avenue Cupertino, California 95014 RESOLUTION NO. OF THE PLANNING COMMISSION OF THE CITY OF CUPERTINO APPROVING A USE PERMIT FOR AMASTER PLAN FOR A COMMERCIAL AND RESIDENTIAL DEVELOPMENT CONSISTING OF APPROXIMATELY 115,000 SQUARE FEET OF COMMERCIAL SHOPPING CENTER, UP TO 402 RESIDENTIAL UNITS AND A 3.5 ACRE PUBLIC P ARK AT STEVENS CREEK BOULEVARD AT FINCH AVENUE SECTION I: PROTECT DESCRIPTION Application No.: Applicant: Location: U-2005-15 Kelly Snider (Toll Bros) Stevens Creek Blvd @ Finch Ave SECTION II: FINDINGS WHEREAS, the Planning Commission of the City of Cupertino received an application for a Use Permit, as described in Section 1. of this Resolution; and WHEREAS, the necessary public notices have been given in accordance with the Procedural Ordinance of the City of Cupertino, and the Planning Commission has held one or more public hearings on this matter; and WHEREAS, the applicant has met the burden of proof required to support said application; and has satisfied the following requirements: 1) The proposed use, at the proposed location, will not be detrimental or injurious to property or improvements in the vicinity, and will not be detrimental to the public health, safety, general welfare, or convenience; 2) The proposed use will be located and conducted in a manner in accord with the Cupertino Comprehensive General Plan and the purpose of this title. NOW, THEREFORE, BE IT RESOLVED: That after careful consideration of maps, facts, exhibits, testimony and other evidence submitted in this matter, the application for Use Permit is hereby recommended for 15~281 Resolution No. Page -2- U-2005-15 January 26,2006 approval, subject to the conditions which are enumerated in this Resolution beginning on Page 2 thereof; and That the subconclusions upon which the findings and conditions specified in this resolution are based and contained in the public hearing record concerning Application No. U-2005-15 as set forth in the Minutes of the Planning Commission Meeting of January 26, 2006, and are incorporated by reference as though fully set forth herein. SECTION III: CONDITIONS ADMINISTERED BY THE COMMUNITY DEVELOPMENT DEPT. 1. APPROVED EXHIBITS The recommendation of approval is based on Exhibits titled: "Calabazas Place: Cupertino, California, Mixed-Use Community" dated December 14, 2005 and December 15, 2005, consisting of 54 sheets labeled 0.0, 0.1, MPl - MP3, MP 3.0, MP4, MP5, AO.l -AO.2, Colored Streetscape, Al - A9, ARO -10, 11 - L6, CO.l, C01.1 _ 1.3, C2.1 - 2.3, C3.1 - 3.6, C4.1 - C4.3, T-l, except as may be amended by the Conditions contained in this Resolution. 2. PROTECT AMENDMENTS The Planning Commission shall review amendments to the project, considered major by the Director of Community Development 3. BELOW MARKET RATE HOUSING PROGRAM The applicant shall participate in the City's Below Market Rate (BMR) Housing Program by dedicating 15% (with condo option B) of the units (up to 20% with senior option A). The applicant shall record a covenant that shall be subject to review and approval by the City Attorney, to be recorded simultaneously with the filing of a building permit. 4. ARCHITECTURAL AND SITE DESIGN The project shall be required to obtain an Architectural and Site approval by the City Council prior to issuance of building permits. The applicant shall address the following issues: General » High quality materials and exceptional architectural detailing shall be used throughout the project. ):0 Architectural style and materials between the residential and corruf1.ercial must relate and be compatible. J '5 ~Z'1Ó Resolution No. Page -2- U-2005-15 January 26,2006 Commercial ~ Use warmer materials and colors on the commercial shopping center » More interior parking lots shading trees should be provided in the parking court and along the shops. ~ Detail design guidelines shall be developed to ensure that future tenants will adhere. ~ Provide a stronger distinct architectural expression for the retail center. » The tenant space at the terminus of the entry drive must provide a stronger architectural feature since it is a focal point of the center. ~ Develop stronger pedestrian amenities (i.e., canopies, trellises, outdoor seating areas, plazas, special paving materials, seats, lights and fountains). ~ Stronger screen buffers (landscaping & screen walls) should be considered to help screen the loading areas of the shopping center along Valko Parkway. Residential » East Terrace should have a functional and architectural entrance along the Stevens Creek Blvd. frontage. The entry feature shall also serve as a significant building break in the long façade. ~ Stronger projecting elevations along major streets (Stevens Creek & Tantau) ~ Eliminate the hip roof element in favor of a stronger modern design expression. ~ Add metal cornices and wall cap elements that relate to the retail center. ~ Provide higher quality and better delineated pedestrian scale entries from the street. ~ Consider corner bakonies to improve the visual transition at the building corners. » There needs to be a cohesive architectural concept that all of the residential complexes draw from. /5 - Z9( Resolution No. Page -2- U-2005-15 January 26, 2006 5. PARKING GARAGE The width of the parking garage entry shall be no larger than 20 feet in keeping with the Hear of the City Specific Plan. Garage ramps shall comply with building code and fire code requirements. 6. OPEN SPACE The project shall comply with the Heart of the Citý Specific Plan for private and common open space requirements for commercial and residential projects 7. BUILDING PERMIT APPROVAL The Director of Community Development shall review the final building permits for full conformance with this approval and the design approval prior to issuance of building permits 8. CONSTRUCTION MANAGEMENT PLAN A construction management and parking plan shall be prepared by the applicant and approved by staff prior to issuance of building permits. Staging of construction equipment shall not occur within 250 feet of any residential property . 9. LANDSCAPING AND TREES PRESERVATION All recommendations in the report by Barrie D. Coates and Associates dated July 21, 2005 and October 30, 2005 shall be followed based on the replacement and retention of trees unless otherwise indicated by the City Council. The City Arborist shall review the detailed site and landscaping plan prior to the Architectural and Site approval for additional recommendations and conditions. Protection Plan- As part of the building permit drawings, a tree protection plan shall be prepared by a landscape architect or certified arborist for the trees specified to be preserved on the site. The tree protection shall be inspected and approved by the landscape architect prior to beginning construction. Tree Protection Bond- the specific amount of a tree protection bond shall be determined by the City Arborist prior to Architectural and Site approval. The applicant, prior to issuance of the first building permit, shall provide such tree bond to ensure protection of existing trees on the site during construction. The bond shall be returned after occupancy permit is issued upon provision of a report by a landscape architect or certified arborist indicating that the trees are in good condition. 10. LANDSCAPTION AND LIGHTING DISTRICT (LLD) The applicant shall create a Landscaping and Lighting District (LLD) to maintain the public street frontages (including parking and street maintenance along I 5 - 21 Z. Resolution No. Page -2- U-2005-15 January 26, 2006 Finch Ave. and Valko Parkway) and the park area that principally benefits the project. The LLD shall be part of the Covenant Codes and Restrictions of the project. The final LLD shall be reviewed and approved by the City Attorney prior to issuance of building permits. 11. PARKING MANAGEMENT PLAN A parking management plan prepared by a certified parking consultant that describes the parking system used by retail, residential, and office uses shall be submitted for approval to the Director of Community Development prior to issuance of building permits The applicant shall provide an updated plan for any tenant changes that result in changes to the parking requirements through a Director's Minor Modification application. If actual parking demand at any time exceeds the estimated demand, the parking management plan shall include one or more of the following to address the parking deficiency: » Provide valet parking either on-site or at an off-site location, valet parking shall be free of charge to users. » Provide off-site employee parking with a shuttle. ;.. Enter into a shared-use agreement with adjacent property owners to use their parking lot during the evening and weekends. » Add on-street parking along the north side of Valko Parkway. » Reduce the size of the retail or restaurants uses. » Develop a parking monitoring program where 70% of the retail uses and one restaurant could open with a parking monitoring program that would survey the actual parking demand. If there is adequate parking available, then the rest of the center could be developed or occupied. 12. CREEK TRAIL IMPROVEMENTS The applicant shall contribute in the amount of $140,000 to the improvements of a trail connection along the east side of Calabazas Creek from Valko Parkway to 1-280. This contribution shall be used by the City to administer a creek trail plan, to coordinate the necessary revisions to the General Plan (and/ or other related specific plans) and the necessary approvals and improvements. 13. PARK IMPROVEMENTS The applicant shall grant the City the option to purchase (at market value) up to .21-acre (or the amount of acreage to allow for a full 3-acre rectuangular park south of the West Terrace Project) of additional land south of West Terrace Condominium. West Terrace Condominium shall be reduced up to 16 units in order to accomplish this. 14. PEDESTRIAN AND SIDEWALK IMPROVEMENTS 15 - 293 Resolution No. Page -2- U-2005-15 January 26,2006 A new pedestrian sidewalk along the west side of Tantau Avenue (through the overpass to the first driveway on the west side of Tantau Avenue) shall be constructed prior to the final occupancy of the project. Appropriate permits and approvals shall be obtained from the California Department of Transportation prior to the final approval of the improvement plans. 15. PUBLIC ART/GATEWAY FEATURES The applicant shall develop a public arts and gateway feature plan for the project. The plan shall be reviewed by the Fine Arts Commission prior to the City Council's consideration of the Architectural and Site Approval 16. SECURITY PLAN FOR PARKING GARAGE A security plan for the parking garages shall be prepared by the applicant and approved by the Sheriff's Department prior to final occupancy. 17. RESTAURANT ODOR ABATEMENT All restaurants shall install odor abatement system to reduce the odor impact from the restaurants to the adjacent community. Detailed plans shall be reviewed and approved by the Community Development Director prior to issuance of building permits. 18. GENERAL PLAN CONFORMANCE Unless otherwise stated by the City Council. The project shall: » Provide more building offsets on the East Terrace building between the third and foµrth floor along the Stevens Creek Blvd. and Tantau Avenue elevations in order to conform to the 1.5 to 1 slope line. Approximately 12 units will be deleted. >- Reduce the total number of units of the Villa buildings from 108 units to 96 units (by deleting 12 units from buildings 3 and 4). This further reduces the total unit count of the project to be closer to the Council directed 300 units and at the same time provides an opportunity for additional diagonal parking stalls along the north side of Valko Parkway to address the overall parking deficiency of the project (see further explanations in the Parking Impact section of the staff report). >- Reduce the density of the West Terrace building from 36 units/acre to 30 units/acre (from 96 to 80 units - 16 units). This is compatible with the density proposed by the adjacent Menlo Equities project (currently in construction) and allowing land to expand the proposed 2.7-acre park to a better-functioned 3-acre public park along Stevens Creek Blvd. 15-2-1'1 Resolution No. Page -2- U-2005-15 January 26, 2006 19. AIR QUALITY · Use dust-proof chutes for loading construction debris onto trucks. · Water or cover stockpiles of debris, soil, sand or other materials that can be blown by the wind. · Cover all trucks hauling soil, sand, and other loose materials or require all trucks to maintain at least two feet of freeboard. · Sweep daily (preferably with water sweepers) all paved access roads, parking areas and staging areas at construction sites. · Sweep streets daily or apply non-toxic soil binders to exposed stockpiles (dirt, sand, etc.). · Install sandbags or other erosion control measures to prevent silt runoff to public roadways. · Replant vegetation in disturbed areas as quickly as possible. · Address dust or complaints regarding dust within 24 hours to the satisfaction of City staff (or other authority). 20. BIOLOGICAL RESOUCES · A qualified biologist shall conduct pre-construction surveys for nesting raptors (including both tree and ground nesting rap tors) on the site within 30 days prior to the onset of ground disturbance, if ground disturbance is to occur during the breeding season January 1 to August 31). Pre- construction surveys during the non-breeding season are not necessary for tree nesting raptors, as they will abandon their roosts during staging. These surveys shall be based on accepted protocols (e.g., as for the burrowing owl) for the target species. If a nesting raptor is found, an appropriate construction buffer shall be established. Actual size of the buffer would depend on the species, topography, and type of activity that would occur in the vicinity of the nest. · A qualified ornithologist shall conduct pre-construction surveys for burrowing owls during the non-breeding season to ensure owls rem§l.Ín absent from the site. If pre-staging surveys (conducted either during the breeding or non-breeding season) determine that burrowing owls occupy the site just prior to staging, and the Director of Planning finds that 15~2Cf5 Resolution No. Page -2- U-2005-15 January 26, 2006 avoiding development of occupied areas is not feasible, then the owls may be evicted outside of the breeding season, with the authorization of the California Department of Fish and Game (CDFG). The CDFG typically only allows eviction of owls outside the breeding season [only during the non-breeding season (September 1 - January 31)] by a qualified ornithologist, and generally requires habitat compensation on off-site mitigation lands. · A final report on nesting rap tors and burrowing owls, including any protection measures, shall be completed to the satisfaction of the Director of Planning prior to start of grading. · Pre-demolition bat surveys shall be conducted to determine if bats remain absent from the site. If no bats are observed to be roosting in the existing office building or in the trees located on-site, no further action is required and demolition and tree removal can proceed. However, if bats are found to be roosting on the site, bats shall be excluded prior to demolition to ensure no harm or take would occur to any bats as a result of demolition activities. · In the event an active maternity colony of bats is found on the site, demolition shall occur after August 31 and before March 1 to avoid interfering with any active nursery. If a non-breeding bat hibernaculum is found in the buildings to be demolished, the individuals shall be safely evicted, under the direction of a qualified bat biologist, through a "partial dismantle" process, whereby the roosting area is opened to allow airflow through and sunlight into the buildings, making it unsuitable habitat and undesirable for the bats to return to the site. Demolition shall then follow no later than the following day (i.e., there shall be no less than one night between initial disturbance for airflow and the demolition). This action allows bats to leave during the night, thus increasing their chances of finding new roosts with a minimum of potential predation during daylight hours. . A final report on bats, including any protection measures, shall be submitted to the Director of Planning prior to start of grading. . If construction occurs outside of the nesting season, then no mitigation for swallows is needed and the impact would be less than significant. If construction occurs during the nesting season (March 1 through July 31), however, a pre-construction survey for nesting swallows (trees and' building eaves) shall be conducted. If swallows are determined to be absent during the nesting season surveys, building demolition can /S-21/P Resolution No. Page -2- U-2005-15 January 26,2006 proceed without further mitigation. If, however, swallows are determined to be present on-site, demolition of all structures or removal of trees (in the case of tree swallow presence) must be delayed until it has been determined that all young swallows have fledged. · A final report on nesting swallows, including any protection measures, shall be submitted to the Director of Planning prior to start of grading. · The project shall replace the 149 trees as specified in the Replacement Strategy section of the Addendum to Tree Survey Report included in Appendix C of this Initial Study. The Replacement Strategy section identifies specific replacement box tree sizes and quantities for each tree to be removed. · If it is determined that the project site lacks sufficient areas to accommodate all of the replacement plantings, replacement tree plantings may be accommodated at an alternative site(s). Any alternatively proposed site shall be pursuant to agreement with the Director of Planning. 21. CULTURAL RESOURCES · A program of archaeological monitoring shall be adopted for portions of the project site that require deep excavation for foundations and/ or underground parking facilities. Monitoring shall be done at the discretion of a qualified archaeologist until it is evident that additional earthmoving will not affect either prehistoric or historic deposits. · In the event of the discovery of either prehistoric or historic archaeological dèposits, work shall be halted within 50 feet of the discovery and a qualified professional archaeologist shall examine the find and make appropriate recommendations regarding the significance of the find and the appropriate mitigation. The recommendation shall be implemented and could include collection, recordation, and analysis of any significant cultural materials. · In the event that human remains and/ or cultural materials are found, all project-related construction shall cease within a 50·foot radius of the find in order to proceed with the testing and mitigation measures required. Pursuant to Section 7050.5 of the Health and Safety Code and Section 5097.94 of the Public Resources Code of the State of California: ' 15 -2f17 Resolution No. Page -2- U-2005-15 January 26,2006 a. In the event of the discovery of human remains during construction, there shall be no further excavation or disturbance of the site or any nearby area reasonably suspected to overlie adjacent remains. The Santa Clara County Coroner shall be notified and shall make a determination as to whether the remains are Native American. If the Coroner determines that the remains are not subject to his authority, he shall notify the Native American Heritage Commission who shall attempt to identify descendants of the deceased Native American. If no satisfactory agreement can be reached as to the disposition of the remains pursuant to this State law, then the land owner shall re-inter the human remains and items associated with Native American burials on the property in a location not subject to further subsurface disturbance. b. A final report shall be submitted to the Director of Planning. This report shall contain a description of the mitigation program that was implemented and its results, including a description of the monitoring and testing program, a list of the resources found, a summary of the resources analysis methodology and conclusion, and a description of the disposition/ curation of the resources. The report shall verify completion of the mitigation program to the satisfaction of the Director of Planning. 15- 293 Resolution No. Page -2- U-2005-15 January 26,2006 22. GEOLOGY AND SOILS · Buildings shall be designated and constructed in accordance with a final design-level geotechnical investigation to be prepared for the site, which identifies the specific design features that will be required for the project, including site preparation, removal and/ or replacement of existing fill, compaction, trench excavations, foundation and subgrade design, drainage, and pavement design. The geotechnical investigation shall be reviewed and approved by the City Public Works Department prior to issuance of a building permit for the project. · The project shall implement standard grading and best management practices to prevent substantial erosion and siltation during development of the site. · The project shall be designed and constructed in conformance with the Uniform Building Code guidelines for Seismic Zone 4 to avoid or minimize potential damage from seismic shaking and seismic-related hazards on the site. 23. Hazards and Hazardous Materials · The project site shall be reviewed by an environmental professional during future site demolition and pregrading activities. Any storage tanks, wells, drums, and debris shall be removed under the guidance of a qualified environmental professional and in accordance with the Santa Clara County Fire Department requirements for above ground fuel tank removal. · As appropriate, a lead survey of painted surfaces and soil around the buildings built prior to 1978 shall be performed prior to demolition. Requirements outlined by Cal/ OSHA Lead in Construction Standard, Title 8, CCR 1532.1 would be followed during demolition activities, including employee training, employee air monitoring, and dust control. Any debris or soil containing lead-based paint or coatings ghall be disposed of at landfills that meet acceptance criteria for the waste being disposed. · All potentially friable ACMs shall be removed in accordance with NESHAP guidelines prior to building demolition or renovation that may disturb the materials. All demolition activities shall be undertaken in accordance with OSHA standards contained in Title 8 of the CCR, Section 1529, to protect workers from exposure to asbestos. Specific measures /,- zttr Resolution No. Page -2- U-2005-15 January 26,2006 could include air monitoring during demolition and the use of vacuum extraction for asbestos-containing materials. · A registered asbestos abatement contractor shall be retained to remove and dispose of ACMs identified in the asbestos survey performed for the site in accordance with the standards stated above. · Materials containing more than one (1) percent asbestos are also subject to BAAQMD regulations. Removal of materials containing more than one (1) percent asbestos shall be completed in accordance with BAAQMD requirements. 24. HYDROLOGY AND WATER QUALITY · The project shall comply with the NPDES General Construction Activity Storm Water Permit administered by the Regional Water Quality Control Board. Prior to construction grading the applicant shall file a Notice of Intent (NOI) to comply with the General Permit and prepare a Storm Water Management Plan that includes storm water quality best management practices (BMPs). The Storm Water Management Plan shall detail how runoff and associated water quality impacts resulting from the proposed project will be controlled and/ or managed. The Plan shall be completed to the satisfaction of the Director of Public Works. · The project shall comply with Provision C.3 of NPDES Permit Number CAS0299718, which provides enhanced performance standards for the management of storm water for new development. Prior to issuance of a Planned Development Permit, each phase of development shall include provision for post-construction structural controls in the project design in compliance with the NPDES C.3 permit provisions, and shall include BMPs for reducing contamination in storm water runoff as permanent features of the project. The project includes the incorporation of bioretention areas, bioswales, porous concrete, and infiltration planters to reduce the amount of runoff from the site (refer to Figures 17 and 18, Proposed Storm Water Control Plan). The specific BMPs to be used in each phase of development shall be determined based on design and site-specific considerations and will be determined prior to issuance of Conditional Use Permit. 15-36D Resolution No. Page -2- U-2005-15 January 26, 2006 . To protect groundwater from pollutant loading of urban runoff, BMPs which are primarily infiltration devices (such as infiltration trenches and infiltration basins) must meet, at a minimum, the following conditions: - Pollution prevention and source control BMPs shall be implemented to protect groundwater; - Use of infiltration BMPs cannot cause or contribute to degradation of groundwater; - Infiltration BMPs must be adequately maintained; - Vertical distance from the base of any infiltration device to the seasonal high groundwater mark must be at least 10 feet. In areas of highly porous soils and/ or high groundwater table, BMPs shall be subject to a higher level of analysis (considering potential for pollutants such as on-site chemical use, level of pretreatment, similar factors); - Unless storm water is first treated by non-infiltration means, infiltration devices shall not be recommended for areas of industrial or light industrial activity; areas subject to high vehicular traffic (25,000 or greater average daily traffic trips on main roadway or 15,000 or more average daily traffic trips on any intersecting roadway); automotive repair shops; car washes; fleet storage areas (bus, truck, etc); nurseries; and other land uses and activities considered by the City as high threats to water quality; and - Infiltration devices shall be located a minimum of 100 feet horizontally from any water supply wells. . Best Management Practices (BMPs) shall be selected and designed to the satisfaction of the Director of Public Works in accordance with the requirements contained in the most recent versions of the following documents: City of Cupertino Post-Construction BMP Section Matrix, SCVURPPP "Guidance for Implementing Storm water Regulations for New and Redevelopment Projects," NPDES Municipal Storm water Discharge Permit issued to the City of Cupertino by the California Regional Water Quality Control Board, San Francisco Bay Region, California BMP Handbooks;, "Start at the Source" Design Guidance Manual, Bay Area Storm water Management Agencies Association "Using Site Design Standards to Meet Development Standards for Stórm water Quality - A Companion Document to Start at the Source, and City of Cupertino Planning Procedures Performance Standard. IS - 3()! Resolution No. Page -2- U-2005-l5 January 26,2006 · To maintain effectiveness, all storm water treatment facilities shall include long-term maintenance programs. · The applicant, their arborist and landscape architects, shall work with the City and the SCVURPPP to select pest resistant plants to minimize pesticide use, as appropriate, and the plant selection will be reflected in the landscape plans. · Incorporate bioretention areas, bioswales, porous concrete, and infiltration planters to reduce the amount of runoff from the site (refer to Figures 17 and 18, Proposed Storm Water Control Plan). 25. NOISE · Prior to issuance of building permits, a design-level noise assessment of the final site plan shall be prepared for the proposed project. The assessment shall identify which units would be required to have mechanical ventilation and the required STC ratings of the building facades facing the various streets. · Install sound rated windows as appropriate and mechanical ventilation to allow the windows to be kept closed for residential units facing 1-280, Tantau Avenue, Valko Parkway, and Stevens Creek Boulevard to achieve an interior noise level of 45 dB LJn or less. · Under Senior Option A, construct a sound wall along the northern boundary of the project site that faces 1-280 to provide for noise reduction at the outdoor court yard. Based upon the conceptual site plan, at minimum, a masonry or precise concrete wall, 12 feet in height and extending to the ends of the parking lot with a 65-foot return at each end is required. The final design of a soundwall shall be determined based upon the design level noise assessment for the development of Area 1 (adjacent to 1- 280). · Locate and shield loading docks in a way to minimize their noise impacts. · Acoustically treat rooftop mounted mechanical equipment appropri~tely. · Limit hours of deliveries, Monday through Sunday, from 7 AM to 7 PM. / 5 ~ 302 Resolution No. Page -2- U-2005-15 January 26,2006 · Limit demolition and construction activities to non-holiday, daytime hours between 7:00 AM and 5:00 PM. · Construct noise barriers to shield adjacent sensitive uses from proximate construction activities on the site. · Utilize" quiet" models of air compressors and other stationary noise sources where technology exists. · Equip all internal combustion engine-driven equipment with mufflers that are in good condition and appropriate for the equipment. · Locate all stationary noise-generating equipment, such as air compressors and portable power generators, as far away as possible from businesses, residences, or other noise-sensitive land uses. · Prohibit all unnecessary idling of internal combustion engines. · Notify all adjacent businesses, residences, and other noise-sensitive land uses of the construction schedule in writing. · Designate a disturbance coordinator, responsible for responding to complaints about construction noise. The name and telephone number of the disturbance coordinator shall be posted at the construction site and made available to businesses, residents, and other land uses adjacent to the project site. / , , 3ó 3 Resolution No. Page -2- U-2005-l5 January 26, 2006 26. TRANSPORTATION . Building permits for commercial development shall only be issued for retail and restaurant uses for which adequate parking is provided (based upon a review by the Department of Community Development and Department of Public Works). . Prior to the issuance of building buildings for commercial development that does not provide parking spaces per the City of Cupertino Municipal Code, a design level parking analysis shall be submitted to the Public Works Department for review and approval. The parking analysis shall address required and provided parking based upon the final design of the commercial development and the anticipated commercial mix. Measures included in the parking analysis and incorporated in the final design and conditions for the commercial development to avoid or reduce potential parking deficiencies may include, but are not limited to: _ the provision of valet parking (either on-site or at an off-site location); _ the provision of off-site employee parking with a shuttle; _ the provision of off-site shared use with nearby property owners (such as Hewlett-Packard) during evening and weekend periods; _ the provision of additional on-street parking along the north side of Valko Parkway. project applicant or sponsor shall conduct a parking monitoring program approximately six months after full occupancy of the commercial uses on the site, or as directed by the City of Cupertino Community Development Director. The monitoring program shall record the number of parked vehicles during peak time periods. If parking demand is found to exceed parking supply, one or more of the strategies identified in the design level parking analysis (such as the use of valet parking or off-site parking by employees) shall be employed to avoid parking impacts. . Prior to the issuance of building permits, a Construction Management Plan will be submitted to the Director of Public Works for review and approval. The Plan will include, at minimum, a traffic management plan and designated truck routes and construction parking areas. . Restripe the westbound through lane on Valko Parkway to a shared through/ right lane 27. UTILITIES AND SERVICE SYSTEMS J 5- 3Df Resolution No. Page -2- U-2005-15 January 26, 2006 . A sewer flow test shall be completed prior to issuance of the conditional use permit. If it is determined that the proposed project would exceed the capacity of the existing sewer lines at or downstream of the site, the project shall, in coordination with the City of Cupertino Department of Public Works and the Cupertino Sanitary District, upgrade the sewer lines and connections to provide capacity to serve the project. SECTION IV: CONDITIONS ADMINISTERED BY THE PUBLIC WORKS DEPT. 28. STREET WIDENING Street widening, improvements and dedications shall be provided in accordance with City Standards and specifications and as required by the City Engineer. 29. CURB AND GUTTER IMPROVEMENTS Curbs and gutters, sidewalks and related structures shall be installed in accordance with grades and standards as specified by the City Engineer. 30. FIRE HYDRANT Fire hydrants shall be located as required by the City. 31. TRAFFIC SIGNS, DETAILS AND LEGENDS Traffic control signs, details and legends shall be placed at locations specified by the City. All improvement plans shall include all necessary signage, details and legends along with traffic control plans. 32. STREET TREES Street trees shall be planted within the Public Right of Way and shall be of a type approved by the City in accordance with Ordinance No. 125. 33. GRADING Grading shall be as approved and required by the City Engineer in accordance with Chapter 16.08 of the Cupertino Municipal Code. 401 Certifications and 404 permits maybe required. Please contact Army Corp of Engineers and/ or Regional Water Quality Control Board as appropriate. 34. DRAINAGE Drainage shall be provided to the satisfaction of the City Engineer. Pre and Post- development calculations must be provided to indicate whether additional storm water control measures are to be installed. 35. UNDERGROUND UTILITIES J 5~ 3ö5 Resolution No. Page -2- U-2005-15 January 26, 2006 The developer shall comply with the requirements of the Underground Utilities Ordinance No. 331 and other related Ordinances and regulations of the City of Cupertino, and shall coordinate with affected utility providers for installation of underground utility devices. The developer shall submit detailed plans showing utility underground provisions. Said plans shall be subject to prior approval of the affected Utility provider and the City Engineer. 36. IMPROVEMENT AGREEMENT The project developer shall enter into a development agreement with the City of Cupertino providing for payment of fees, including but not limited to checking and inspection fees, storm drain fees, park dedication fees and fees for undergrounding of utilities. Said agreement shall be executed prior to issuance of construction permits. Fees: a. Checking & Inspection Fees: $ 5% of Res. Off-Site Improvement Cost $ 6% of Commercial Off-Site Improvement Cost b. Grading Permit: c. Development Maintenance Deposit: d. Storm Drainage Fee: e. Power Cost: f. Map Checking Fees: g. Park Fees: $ 5% of On- Site Improvement Cost $ 3,000.00 $ 32,635.00 ** $ 6,750.00 *N/A * Park fees are not required based on the 3.5-acre public park allotment. Bonds: a. Faithful Performance Bond: 100% of Off-site and On-site Improvements b. Labor & Material Bond: 100% of Off-site and On-site Improvement c. On-site Grading Bond: 100% of site improvements. -The fees described above are imposed based upon the current fee schedule adopted by the City Council. However, the fees imposed herein may be modified at the time of recordation of a final map or issuance of a building permit in the event of said change or changes, the fees changed at that time will reflect the then current fee schedule. ** Developer is required for one-year power cost for streetlights 37. TRANSFORMERS J ':r 3òý; Resolution No. Page -2- U-2005-15 January 26, 2006 Electrical transformers, telephone vaults and similar above ground equipment enclosures shall be screened with fencing and landscaping or located underground such that said equipment is not visible from public street areas. 38. DEDICATION OF WATERLINES The developer shall dedicate to the City all waterlines and appurtenances installed to City Standards and shall reach an agreement with San Jose Water for water service to the subject development. 39. BEST MANAGEMENT PRACTICES Utilize Best Management Practices (BMP's), as required by the State Water Resources Control Board, for construction activity, which disturbs soil. BMP plans shall be included in your grading and street improvement plans. 40. AMENDED DEVELOPMENT BEST MANAGEMENT PRACTICES (BMP) REQUIREMENTS In addition, the applicant must include the use and maintenance of site design, source control and stormwater treatment BMP's, which must be designed per approved numeric sizing criteria. The City encourages the use of HMP (Hydromodification Plan) BMP's in the design of the project. The property owners with treatment BMPs will be required to certify on-going operation and maintenance. 41. NPDES CONSTRUCTION GENERAL PERMIT The applicant must obtain a notice of intent (NOI) from the State Water Resources Control Board, which encompasses a preparation of a Storm Water Pollution Prevention Plan (SWPPP), use of construction Best Management Practices (BMP's) to control storm water runoff quality and BMP inspection and maintenance. 42. EROSION CONTROL PLAN The developer must provide an approved erosion control plan by a Registered Civil Engineer. This plan should include all erosion control measures used to retain materials on-site. Erosion Control notes shall be stated on the plans. 43. TRASH ENCLOSURES The trash enclosure plan must be designed to the satisfaction of the Environmental Programs Department. Clearance by the Public Works Department is needed prior to obtaining a building permit. 44. MAINTENANCE AGREEMENT The developer shall enter into a maintenance agreement with the City to maintain all non-standard items in the City's Right-of-way. 15 - 36 7 Resolution No. Page -2- U-2005-15 January 26,2006 45. TRAFFIC DEPARTMENT The developer shall be required to address the following comments and concerns: 1. The project is required to perform a Transportation Impact Analysis (TIA). The scope of the TIA has already been discussed with the applicant's traffic engineer. Warrants for a traffic signal at the intersection of Valko Parkway and Finch Avenue is one of the items to be analyzed. However, some of the elements of the current site plan may affect the scope of the TIA. The project will be required to undertake mitigations of impacts to the surrounding transportation system identified by the TIA. 2. The project will be responsible for making operational improvements to the surrounding traffic systems, including but not limited to installation of pedestrian countdown signal heads and installation or upgrade of emergency vehicle preemption (EVP) at surrounding signalized intersections. Traffic signal and roadway modifications shall be required to eliminate existing and potential operational deficiencies. 3. Public Works is opposed to on street parking along Stevens Creek Boulevard, shown on the preliminary plans. 4. Public Works is opposed to the modifications to Finch Avenue as currently shown on the plan. Public Works is prepared to accept parallel parking along Finch Avenue, but does not wish to havE\the width of the road reduced from the current four lanes to two lanes. No analysis of the future impact of doing so has been done. The effects on of any significant modifications to Finch Avenue on the surrounding transportation system and traffic circulation must be analyzed. 5. Vehicle and pedestrian trips and parking demand generated by the park must be analyzed. 6. Significant pedestrian facilities, such as embellished crosswalks across Finch Avenue and Valko Parkway may be required. A significant midblock crosswalk is already shown on the site plans. 7. Adequacy of traffic circulation on each site and from each site to and from the surrounding roadways shall be analyzed. Midblock driveways along Stevens Creek will be right turn in, right turn out only. There is potential for conflict at the two site driveways on the south side of Vallco Parkway as shown on the plan. IS~3ðð' Resolution No. Page -2- U-2005-15 January 26,2006 PASSED AND ADOPTED this 26th day of January 2006, at a Regular Meeting of the Planning Commission of the City of Cupertino, State of California, by the following roll call vote: AYES: NOES: ABSTAIN: ABSENT: COMMISSIONERS: COMMISSIONERS: COMMISSIONERS: COMMISSIONERS: ATTEST: APPROVED: Steve Piaseki Director of Community Development Marty Miller, Chairperson Planning Commission "-36"1 Z-2005-04 CITY OF CUPERTINO 10300 Torre Avenue Cupertino, California 95014 MODEL RESOLUTION OF THE PLANNING COMMISSION OF THE CITY OF CUPERTINO RECOMMENDING THE RE-ZONING TO ALLOW FOR A COMMERCIAL AND RESIDENTIAL DEVELOPMENT CONSISTING OF APPROXIMATELY 120,000 SQUARE FEET OF COMMERCIAL SHOPPING CENTER, UP TO 402 RESIDENTIAL UNITS AND A 3.5 ACRE PUBLIC P ARK AT STEVENS CREEK BOULEV ARD AT FINCH AVENUE SECTION I: PROTECT DESCRIPTION Application No.: Applicant: Location: Z-2005-04 (EA-2005-17) Kelly Snider (Toll Bros.) Stevens Creek blvd @ Finch Ave SECTION II: FINDINGS FOR REZONING WHEREAS, the Planning Commission of the City of Cupertino received an application for the rezoning of property, as described on this Resolution; and WHEREAS, the necessary public notices have been given in accordance with the Procedural Ordinance of the City of Cupertino, and the Planning Commission has held one or more public hearings on this matter; and WHEREAS, the Planning Commission finds that the subject rezoning meets the following requirements: 1) That the rezoning is in conformance with the General Plan of the City of Cupertino. 2) That the property involved is adequate in size and shape to conform to the new zoning designation. 3) That the new zoning encourages the most appropriate use of land. 4) That the proposed rezoning is otherwise not detrimental to the health, safety, peace, morals and general welfare of persons residing or working in the neighborhood of subject parcels. 5) That the rezoning promotes the orderly development of the city. J 5~ 310 Resolution No. Page 2 z- 200S-04 January 10, 2006 NOW, THEREFORE, BE IT RESOLVED: That after careful consideration of maps, facts, exhibits, testimony and other evidence submitted in this matter, application no. Z-2005-04 is hereby recommended for approval; and That the subconclusions upon which the findings and conditions specified in this Resolution are based and contained in the Public Hearing record concerning Application Z-2005-04, as set forth in the Minutes of the Planning Commission Meeting of January 26, 2006 and are incorporated by reference herein. SECTION III: CONDITIONS ADMINISTERED BY THE COMMUNITY DEVELOPMENT DEPT. 1 APPROVED EXHIBITS Zoning approval is for area shown in the approved Zoning Plat Maps. PASSED AND ADOPTED this 10th day of January 2006, at a Regular Meeting of the Planning Commission of the City of Cupertino, State of California, by the following roll call vote: AYES: NOES: ABSTAIN: ABSENT: COMMISSIONERS: COMMISSIONERS: COMMISSIONERS: COMMISSIONERS: ATTEST: APPROVED: Steve Piasecki Director of Community Development Marty Miller, Chairperson Cupertino Planning Commission } 5 -3 II TM-2005-04 CITY OF CUPERTINO 10300 Torre Avenue Cupertino, California 95014 RESOLUTION NO. OF THE PLANNING COMMISSION OF THE CITY OF CUPERTINO APPROVING A TENT A TIVE MAP TO SUBDIVIDE FOUR PARCELS (APPROXIMATELY 26-ACRES) UP TO 6 PARCELS A COMMERCIAL AND RESIDENTIAL DEVELOPMENT CONSISTING OF APPROXIMATELY 115,000 SQUARE FEET OF COMMERCIAL SHOPPING CENTER, UP TO 402 RESIDENTIAL UNITS AND A 3.5 ACRE PUBLIC PARK AT STEVENS CREEK BOULEV ARD AT FINCH AVENUE SECTION I: PROTECT DESCRIPTION Application No.: Applicant: Location: TM-2005-04, EA-2005-17 Kelly Snider (Toll Bros.) Stevens Creek @ Finch SECTION II: FINDINGS WHEREAS, the Planning Commission of the City of Cupertino received an application for a Tentative Subdivision Map as described in Section I of this Resolution; and WHEREAS, the necessary public notices have been given as required by the Subdivision and Procedural Ordinances of the City of Cupertino, and the Planning Commission has held at least one public hearing in regard to the application; and WHEREAS, the applicant has met the burden of proof required to support said application; and has satisfied the following requirements: a) That the proposed subdivision maps are consistent with the City of Cupertino General Plan. b) That the design and improvements of the proposed subdivision are consistent with the General Plan. c) That the site is physically suitable for the type and intensity of development contemplated under the approved subdivision. d) That the design of the subdivision or the proposed improvements are not likely to cause substantial environmental damage nor substantially harm fish and wildlife or their habitat. e) That the design of the subdivision or the type of improvements asso~iated therewith are not likely to cause serious public health problems. /s- 31 Z Resolution No. Page 2 TM-2005-04 January 10, 2006 NOW, THEREFORE, BE IT RESOLVED: That after careful consideration of maps, facts, exhibits, testimony and other evidence submitted in this matter, the application TM-2005-04 for a Tentative Map is hereby approved as modified, subject to the conditions which are enumerated in this Resolution beginning on page 2 thereof, and That the subconclusions upon which the findings and conditions specified in this Resolution are based and contained in the Public Hearing record concerning Application TM-2005-04, as set forth in the Minutes of Planning Commission Meeting·of January 26,2006, and are incorporated by reference as though fully set forth herein. SECTION III: CONDITIONS ADMINISTERED BY THE COMMUNITY DEVELOPMENT DEPT. 1. APPROVED EXHIBITS The recommendation of approval is based on Exhibits titled: "Calabazas Place: Cupertino, California, Mixed-Use Community" dated December 14, 2005 and December 15, 2005, consisting of 54 sheets labeled 0.0, 0.1, MPl - MP3, MP 3.0, MP4, MP5, AO.l -AO.2, Colored Streetscape, Al - A9, ARO - 10, 11 - L6, CO.l, COl.l - 1.3, C2.1 - 2.3, C3.1 - 3.6, C4.1 - C4.3, T-l, except as may be amended by the Conditions contained in this Resolution. 2. USE PERMIT CONDITIONS (U-200S-1S) All of the conditions from the use permit approval (U-2005-15) shall be applicable. PASSED AND ADOPTED this 26th day of January 2006, at a Regular Meeting of the Planning Commission of the City of Cupertino, State of California, by the following roll call vote: AYES: NOES: ABSTAIN: ABSENT: COMMISSIONERS: COMMISSIONERS: COMMISSIONERS: COMMISSIONERS: ATTEST: APPROVED: Steve Piasecki Director of Community Development Marty Miller, Chairperson Cupertino Planning Commission g:jplanning/pdreportjres/TM-2005-04 res.doc 15- J/ J EXC-2005-18 CITY OF CUPERTINO 10300 Torre Avenue Cupertino, California 95014 MODEL RESOLUTION OF THE PLANNING COMMISSION OF THE CITY OF CUPERTINO APPROVING AN EXCEPTION FROM THE HEART OF THE CITY PLAN TO ALLOW FOR AN AVERAGE 35-FOOR FRONT SETBACK ALONG STEVENS CREEK BOULEVARD FOR THE COMMERCIAL SHOPPING CENTER AT STEVENS CREEK BOULEVARD AND FINCH A VENUE SECTION I: PROTECT DESCRIPTION Application No.: Applicant: Location: EXC-2005-18 Kelly Snider (Toll Bros.) Stevens Creek @ Finch Ave SECTION II: FINDINGS FOR EXCEPTION WHEREAS, in order to provide height flexibility in situations when collocation of personal wireless service antennas is desirable from a design and visual standpoint, an applicant for development may file an exception request to seek approval to deviate from the standards; and WHEREAS, the Planning Commission finds the following with regards to the Height Exception for this application: 1. That the literal enforcement of the provisions of this title will result in restrictions inconsistent with the spirit and intent of this title. 2. That the proposed project will not be injurious to property or improvements in the area nor be materially detrimental to the public health, safety, or welfare. 3. The proposed development will not create a hazardous condition for pedestrian or vehicular traffic. NOW, THEREFORE, BE IT RESOLVED: That after careful consideration of maps, facts, exhibits, testimony and other evidence submitted in this matter, application no. EXC-2005-18 is hereby approved; and That the subconclusions upon which the findings and conditions specified in this Resolution are based and contained in the Public Hearing record concérning Application EXC-2005-18, as set forth in the Minutes of the Planning Commission Meeting of January 24, 2006, and are incorporated by reference herein. J 5 - 314 Resolution No. Page 2 EXC-2005-18 January 24,2006 SECTION III: CONDITIONS ADMINISTERED BY THE COMMUNITY DEVELOPMENT DEPT. 1. APPROVED EXHIBITS The recommendation of approval is based on Exhibits titled: "Calabazas Place: Cupertino, California, Mixed-Use Community" dated December 14, 2005 and December 15,2005, consisting of 54 sheets labeled 0.0, 0.1, MPl - MP3, MP 3.0, MP4, MP5, AO.1 -AO.2, Colored Streetscape, Al - A9, ARO -10, 11 - L6, CO.1, C01.1 -1.3, C2.1 - 2.3, C3.1 - 3.6, C4.1 - C4.3, T-l, except as may be amended by the Conditions contained in this Resolution. 2. NOTICE OF FEES, DEDICATIONS, RESERVATIONS OR OTHER EXACTIONS The Conditions of Project Approval set forth herein may include certain fees, dedication requirements, reservation requirements, and other exactions. Pursuant to Government Code Section 66020(d) (1), these Conditions constitute written notice of a statement of the amount of such fees, and a description of the dedications, reservations, and other exactions. You are hereby further notified that the 90-day approval period in which you may protest these fees, dedications, reservations, and other exactions, pursuant to Government Code Section 66020(a), has begun. If you fail to file a protest within this 90-day period complying with all of the requirements of Section 66020, you will be legally barred from later challenging such exactions. PASSED AND ADOPTED this 26th day of January 2006, at a Regular Meeting of the Planning Commission of the City of Cupertino by the following roll call vote: AYES: NOES: ABSTAIN: ABSENT: COMMISSIONERS: COMMISSIONERS: COMMISSIONERS: COMMISSIONERS: ATTEST: APPROVED: Ciddy Wordell City Planner Marty Miller, Chair Planning Commission g:/planning/pdreport/res/EX C- 2005-18 res. doc ¡ 5 - 315 CITY OF CUPERTINO 10300 Torre Avenue, Cupertino, California 95014 DEPARTMENT OF COMMUNITY DEVELOPMENT REPORT FORM Application: U-2005-15, TM-2005-04, Z-2005-04, Agenda Date: January 10, 2006 EXC-2005-18, EA-2005-07 Applicant (s): Toll Brothers Property Location: APN#s: 316-20-074, 078, 079, 085 - North of Stevens Creek Boulevard and South of 1-280 between Tantau A venue and Finch Avenue. APPLICATION SUMMARY: Toll Brothers, in conjunction with its retail shopping center development partner, Keenan-Bariteau, proposes to develop the 26 acre Hewlett Packard property located at Stevens Creek Boulevard and Finch Avenue. The proposed mixed-use development will consist of the following: . Two residential options encompassing 369 - 402 homes as follows: o Option A · 322 résidential condominium units, and · 80 senior apartments, equaling 20% Below Market Rate (BMR) 402 total units o Option B · 314 condominium units, and · 55 BMR units equaling 15% BMR 369 total units · Retail shopping center encompassing approximately 115,000 square foot · 3.5 acre public park · Demolition of a 150,000 square foot industrial office building considered functionally obsolete by the applicant The environmental analysis and technical reports considered both options; therefore the Commission has the ability to choose either option. The project as proposed requires the following approvals: 1. An exception to the Heart of the City Specific Plan to allow front yard setbacks of less than 35 feet to an average of 35 feet with a minimum of 26 feet. 2. Rezoning to change from P (CG,O,ML,Hotel)/P (MP) to P(Com, Res) & P (PR) 3. Use Permit - to construct six buildings totaling 115,000 square feet of retail space and up to 402 residential units. 4. Tentative Map - to subdivide four existing parcels totaling 25.5 acres into five parcels (2.45, 3.5, 8.37, 3.08, 7.97 acres). 15 - 51& Applications: Z-2005-04, U-2005-15, EXC-2005-18, EA-2005-07, TM-2005-04 Calabazas Place January 10, 2006 Page 2 5. Site and Architectural review will be submitted subsequent to this review once the use permit and rezoning applications have been reviewed and approved. RECOMMENDATION Staff recommends that the Planning CommissiQn review the application in two steps: 1) Policy Review: Determine if the application conforms to the General Plan, Heart of the City Plan and the direction from the City Council at the study session of January 18, 2005. The analysis should focus on: a) Number of housing units b) Retail square footage c) Residential density d) Building height and setbacks 2) Technical Issues: If the project conforms to the policy criteria contained in the above documents and the direction of the City Council then review the technical issues including: a) Parking b) Architectural Design c) Landscaping Plan The project proposes a total number of units in excess of the 300 previously directed by the City Council and exceeds the total of 400 units allocated for the South Valko area, when combined with the proposed 139-unit Valko condominium application, which is also scheduled to be reviewed by the Planning on January 10, 2006. The recently adopted General Plan allows transferring units from one area to another area, but provides no specific criteria for when transfers should be allowed. Staff suggests that transfers should be allowed when there is an identified substantial public benefit associated with the application. The Commission should consider what would constitute a substantial public benefit in the subject application. The project model resolutions will be provided at the January 10, 2006, meeting. LOCATION The project site is bounded by Stevens Creek Boulevard to the south, Tantau Avenue to the east, Interstate 280, Calabazas Creek and Valko Parkway to the north, and the Rose Bowl and Menlo Equities "Metropolitan" project to the west. Existing Project Site South Parcel North Parcel , 18 acres 8 acres Vacant . 150,000 sf office building South of Valko Parkway North of Vallco Parkway 2 /5'3/1 Applications: Z-2005-04, U-2005-15, EXC-2005-18, EA-2005-07, TM-2005-04 Calabazas Place January 10, 2006 Page 3 BACKGROUND Project Data: General Plan Designation: Office Area: Residential Units: Residential Density: Retail Area: Building Height: Current Zoning: Proposed Zoning: Specific Plan: Project Consistency with: General Plan: Zoning: Specific Plan: Environmental Assessment: Commercial/ Office/ Residential 150,000 square feet (existing) 369 - 402 units 16 to 36 du/ ac Up to 115,000 square feet 40 to 50 feet P(CG,O,ML,Hotel) & P(ML) P(Comm, Res) & P(PR) Heart of the City Yes, with the following changes: » Reduce density to 35 du/ ac. » Conform to the 1.5 to 1 slope line along Stevens Creek and Tantau. ~ Reduce number of units or identify transfer source. Yes, with a rezoning allowing residential uses Yes, with exception to allow an average of 35 feet front setback for commercial. Mitigated Negative Declaration. Previous Council Direction On September 3, 2002, the City Council authorized Hewlett-Packard to apply for a General Plan Amendment for 300 residential units on the vacant South Parcel. At the time, the proposed project was 734,000 sq. ft. of new office space, a 11,000 sq. ft. conference center, 387 housing units, 11,000 sq. ft. of retail space and a three acre public park (see Exhibit F). Based on lack of activity, this amendment application was closed. Toll Brothers On August 17, 2004, Toll Brothers presented a concept that included 565 units, and up to 80,000 sq. ft. of commercial to the City Council and Planning Commission at a joint study session (see Exhibit G). On January 18, 2005, the City Council heard a subsequent request by Toll Brothers, for authorization to apply for a General Plan Amendment to allow up to 460 additional residential units, 100,000 square feet of commercial area and 1.4 acres of public párk area (see Exhibit H). The City Council authorized the applicant to apply for a General Plan Amendment for up to 300 residential units with the condition that the project includes at least 100,000 sq. ft. of retail space and at least a 3.5-acre park. Subsequent to 3 J 5 - 3lZ Applications: Z-2005-04, U-2005-15, EXC-2005-18, EA-2005-07, TM-2005-04 Calabazas Place January 10, 2006 Page 4 this authorization, the City Council decided to change the ordinance to no longer require pre-approval prior to filling a General Plan Amendment. In addition, the Valko Park South area now has new residential allocations based on the recent General Plan update. Consequently, the applicant no long needs a General Plan Amendment and the application is outside the parameters of the prior authorization. The table below describes the Council direction to the applicant and how the current proposal compares: Previous Project Details Compared to the Current Proposal 1/18/2005 1/18/2005 Current Proposal Council Proposal Direction Units 460 300 369 - 402 RetaiÙ sa. ft.) 90,000 100,000 115,000 Public Park 3.5 park (acres) funding to purchase a 0.5 acre parcel in Rancho 1.4 Rinconada for a 3.5 pocket park/ trail head next to the Saratoga Creek linear park Density (units per acre) 27 36 DISCUSSION Project Description The project site is approximately 25.5 acres and consists of one existing 150,000 square feet vacant office building to be demolished. The applicant contends that the office building is functionally obsolete. The Commission should review the cohesive office policy adopted in the General Plan to determine if the proposal meets all of the conversion criteria (discussed later in the report). The project proposes the following project details: 4 J 5 ' 31 'I Applications: Z-2005-04, U-2005-15, EXC-2005-18, EA-2005-07, TM-2005-04 Cala bazas Place January 10, 2006 Page 5 BUILDING DENSITY RETAIL RESIDENTIAL MAX. lIT. COMMENTS UnitsJacre Sq.ft. Units Feet Existing 150,000 . Demolished as part of sf. Office this.project East Terrace 4 stories- 45 Exceeds General Stacked Flat Condo - Lot 4 26 96 ft. to the top Plan's 1.5 to 1 slope of the line drawn from parapet; 50 ft. Stevens Creek Blvd. to the peak of & Tantau Ave. the hip roof West Terrace 36 99 4 stories - 45 Exceeds General Stacked Flat ft. to the top Plan' 5 maximum 35 Condo - Lot 1 of the duJ ac density. parapet; 50 ft. to the peak of the hip roof Villas (four 19 108 3 stories - 40 buildings) Two- ft.max. story condo stacked on a ground floor flat - Lot 5 North T efrace Senior Apt. 80 3 stories - 40 (two options) Option A - ft.max. (Lot 6) *23 Condo 48 4 stories - Option B - 50ft. to the (Lot 5) peak of the **16 roof Retail Parcel - 112,206 Lot3 Total 112,206 Option A (Senior) - 402 units Option B (Condo)- 369 units *23 du/ ac density of the Senior Apt. on lot 6. **16 du/ ac total density of the Villas and North Terrace Condo Option on lot 5. 5 J5-32ô /5, '32-/ Applications: Z-2005-04, U-2005-15, EXC-2005-18, EA-2005-07, TM-2005-04 Calabazas Place January 10, 2006 Page 6 Rezoning The project site is currently zoned P(CG,O,ML,Hotel)/P(MP) - Planned Development (General Commercial, Office, Light Industrial, Hotel)/ (Industrial) and does not allow residential uses. The site is proposed to be rezoned to P(Com, Res) - Planned Development (Commercial and Residential) to allow the proposed commercial and residential uses. The dedicated public park area will be zoned P(PR) - Planned Development (Public Park or Recreational). The proposed rezoning is compatible with the General Plan land use designation as indicated above. Tentative Map With the Senior Option A, the applicant proposes subdividing the existing four existing parcels (totaling approximately 25.5-acre) into 5 parcels (ranging from 2.6 acres to 8.4 acres). The Condo Option B would create an additional lot (parcel 6) for the North Terrace condo building. POLICY REVIEW General Plan The General Plan designates this site for Office/Commercial/ Residential and allows the uses proposed by the project. The project is proposing up to 36 units/ acre (West Terrace _ Lot 1) in excess of the maximum allowed density of 35 units/ acre. In addition, the project (East Terrace - Lot 4) exceeds the maximum 1.5 to 1 building bulk slope line along the Stevens Creek Boulevard and Tantau Avenue. In order to conform to the above General Plan criteria, the following measures should be implemented: .:. Provide more building offsets on the East Terrace building between the third and fourth floor along the Stevens Creek Blvd. and Tantau Avenue elevations in order to conform to the 1.5 to 1 slope line. Approximately 12 units will be deleted. .:. Reduce the total number of units of the Villa buildings from 108 units to 96 units (by deleting 12 units from buildings 3 and 4). This further reduces the total unit count of the project to be closer to the Council directed 300 units and at the same time provides an opportunity for additional diagonal parking stalls along the north side of Valko Parkway to address the overall parking deficiency of the project (see further explanations in the Parking Impact section of the staff report). .:. Reduce the density of the West Terrace building from 36 units/ acre to 30 units/ acre (from 96 to 80 units -16 units). This is compatible with the density proposed by the adjacent Menlo Equities project (currently in construction) and allowing land to expand the proposed 2.7-acre park to a better-functioned 3-acre public park along Stevens Creek Blvd. 6 J'~32-Z. Applications: Z_2005-04,0-2005-15, EXC-2005-18, EA-2005-07, TM-2005-04 Cala bazas Place January 10, 2006 Page 7 As mentioned previously, both options (402 Senior Option A or 369 Condo Option B) are in excess of the 300 units previously directed by the City Council. The project in conjunction with V allco' s 139-unit condominium project exceeds the total 400 units allocated for the South Valko area based on the new General Plan allocations. The General Plan has 300 un designated units in the" other area" category. Portions of those units could be transferred to the project area if the project can demonstrate extraordinary public benefits. Staff suggests that the Commission make findings that the project is providing substantial public benefits in order to allow for the transfer of units. After the reductions for building offsets and added parking and land to expand the park area, the Toll Bros. application will still require approximately 29 market rate units or up to 62 affordable senior units above the 300 units previously agreed to by the City Council. The substantial public benefits that justify allocating units from the other residential category include the following: . Park area and improvements (3-acres dedicated & fully improved) in excess of their required 2-acre park dedication requirement. Added.5 acre park allocation to purchase land in the Rancho Rinconada area for a pocket park/ trail head next to the Saratoga Creek linear park) will constitute one of the substantial public benefits from the project and also satisfy the Council directed 3.5 acre park with funding to purchase another .5 acre of park in Rancho Rinconada area, . Contribution to the improvements of a trail connection along the east side of Calabazas Creek from Valko Parkway to 1-280, . Construction of a pedestrian path along the west side of Tantau Avenue, through the Tantau overpass to Pruneridge Ave. The proposed approximately 115,000 sq. ft. of retail area will be allocated from the commercial development allocation for the Valko Park South area (currently has about 250,000 sq. ft.). Staff believes that the project will substantially conform to the General Plan provided that all of the above mentioned changes and substantial public benefits are met. Heart Of The City Specific Plan The Heart of the City Specific Plan provides development standards and design guidelines for development on sites along most of Stevens Creek Boulevard. The following table is a comparison between the development standards and the proposed mixed use, multi-unit residential development. 7 )5-32-3 Applications: Z-2005-04, U-2005-15, EXC-2005-18, EA-2005-07, TM-2005-04 Calabazas Place January 10, 2006 Page 8 Use Density Setback Height Setbacks (Residential) Front Sides¡'Rear Setbacks (Commercial) Front Sides Open Space (Residential) Private open space Public open space Open Space (Commercial) Common open space Subsurface Gara es Development Intensity commercial) Officej Residentialj Retail 35 duj gr. acre 1.5:1 (setback:height) 36 ft. Maximum 45 ft. through an Exception 50' Lot> 200' frontage 9 ft. from 26 ft. landscaped easement (along Stevens Creek) . 20 ft. to property line and 30ft. between buildings 35 ft. o ft. when adjacent property are jointly developed 60 sq. ft.jdu (no dimension < 6 ft.) 150 sq. ft.j du 2.5% of the total gross square footage = 2,805 sq. ft. May not exceed 5 ft. above grade 37% Floor Area Ratio ResidentialjRetail 16 to 36 duj gr. acre 1:1 to 1.1:1 40 to 50 feet. 6 to 67 ft. from 26 ft. landscaped easement (5) 20 ft. to 58 ft. and 40 to 60 ft. between the buildings 26 ft. minimum 35 ft. average (Stevens Creek) 34 ft. minimum 35 feet plus average (Finch & Vallco Parkway) 11 ft. minimum 80 to 160 sq. ft.j du (no dimension < 6 ft.) 155 to 478 sq.ft.j du 28.5% = 104,145 sq. ft. o to 4 ft. above grade 31% C NC - will need to be reduced NC - will need to be setback further (E. Terrace C - new General Plan allows 60 ft. with retail components. TI1is sa ercedes the HOC limits. C - building setbacks off Finch and Valleo Pkwy. May be reduced to 9 feet. C NC - exception requested to provide an average 35 ft. setback. C - Planned mixed-use may reduce side setbacks between on-site buildings. C C C c C *Certain guidelines of the Heart of the City are not listed above as they apply only to the Architectural and Site approval of the project. 8 IS· '3 2-,/ Draft Final Calabazas Place TlA December 2005 -- TABLE 11 CUMULATIVE INTERSECTION LEVELS OF SERVICE No Project Project Peak 1:1 in Crit 6 in Crit Project Intersection Hour1 Delay' LOS' Delay' LOS' Delay' VIC' Contribution 8. Wolfe Road I Vallco Parkway AM 18.8 B- 19.5 s- +0.3 +0.006 50.0% PM 60.8 E 67.6 E +2.7 +0.011 47.8% Notes: 1 AM = morning peak-hour, PM '" evening peak-hour. 2 Whole intersection weighted average control delay expressed in seconds per vehicle for signalized and all-way stop intersections using methodology described in the 2000 Highway Capacity Manual, with adjusted saturation flow rates to reflect Santa Clara County Conditions. LOS calculations conducted using the TRAFFIX level of service analysis software package. 3 LOS = Level of service 4 Change in critical movement delay between Cumulative No Project and Cumulative plus Project Conditions. 5 Change in the critical volume-ta-capacity ratio (Vie) between Cumulative No Project and Cumulative plus Project Conditions. 48 fþ FEHR & PEERS I~AA\P~RT'''~" COOl",".'" 15-3;<5 Draft Fmal Cafabazas Place TIA December 2005 --. 6. CONCLUSIONS With demolition of the existing 150,300 square feet of office space, the proposed 120,000 square feet of retail and 369 residentiai units is estimated to generate a net increase of 5,676 daily trips, a net increase of 12 AM peak- hour trips (133 fewer inbound/145 added outbound) and a net increase of 447 PM peak-hour trips (327 added inbound/120 added outbound). Intersection impacts were evaluated at twenty-one key intersections with level of service calculations during the weekday morning (AM) and evening (PM) peak periods for Existing, Background, Project, and Cumulative Conditions. The results of the anaiysis showed that the proposed project wouid not have a significant impact on any of the study intersections through Project Conditions. The proposed project would have a less-than-significant impact to the freeway segments. Under Cumulative plus Project Conditions, the Vallco Parkway and Wolfe Road intersection would operate unacceptably and the project would have a significant cumuiative impact. A traffic simulation modei using SimTraffic software shows there is good progression along Wolfe Road and Stevens Creek Boulevard with the exception of the eastbound left-turns on Stevens Creek Boulevard at Wolfe Road. However, the elimination of a through iane and installation of parallel on-street parking is not recommended unless it is part of a iarger project to reduce through capacity or provide parking on a longer segment of Stevens Creek Boulevard. The number and spacing of the driveways is sufficient to accommodate the projected traffic volumes generated by the proposed development. The on-site circulation is considered acceptable. It is recommended that sidewalks be provided along the west side of Tantau Avenue between Vallco Parkway and Pruneridge Avenue including a raised sidewalk along the existing bridge over 1-280. Textured pedestrian crosswalks are recommended on Vallco Parkway at the new intersection west of Tantau Avenue. In addition, pedestrian countdown heads are recommended at the Stevens Greek Boulevard intersections with Finch and Tantau Avenues. Modifications to the bicycle lanes on Vallco Parkway were recommended. With these changes, the project is estimated to have a less-than significant impact to the pedestrian and bicycle facilities. The project would not have a significant impact to the transit facilities since existing transit service is provided within one- quarter mile of the project site. According to the City's Municipal Code, 1,271 parking spaces are required. The proposed on-site suppiy of 1,261 spaces does not meet the parking requirement. The project will provide sufficient parking for the residential uses. However, the retail and restaurant parking supply does not meet city parking requirements. Some of the on-street parking spaces on Vallco Parkway and Finch Avenue wouid be available for guests and overflow parking. However, there will still be insufficient parking for the retail uses. The project could implement either valet parking, off-site employee parking, reduce the project size, enter a shared-use agreement with Hewlett-Packard to use their parking lot during the evenings and weekends, add on-street parking along the north side of Vallco Parkway, or build the retail portion in phases with a parking monitoring program to ensure that adequate parking is provided. To accommodate demand and encourage nonmotorized transportation, the project shall provide 148 Class I bicycle spaces for the residentiai units and 24 Ciass 1\ bicycle spaces for retail customers. 49 fp '¡H{( & PEERS 1"0'"0'''''0",""'"'''01\ ¡) - 324 fp FEHR & PEERS TRANSI'ORTATlON(ONSULTANTS MEMORANDUM Date: December 13, 2005 To: Gary Chao, City of Cupertino From: Kristiann Choy, P.E., Fehr and Peers Subject: Calabazas Place TIA - Park Trip Generation and Parking SJ05--795 Fehr & Peers has been asked to estimate trip generation and parking demand for the 3.5 acre public park that will be donated to the City of Cupertino by Toll Brothers as part of the Calabazas Place project. The City provided all information on the park's users. The park is expected to have simiiar uses as the Library Field on Torre Avenue. According to the information provided by the City, the park may include soccer, cricket, and volleyball league play. The different sports are scheduied so their games and practices do not overlap. The practices typically occur on weekdays between 3:00pm and 7:00pm. Games are held on Saturdays between 8:00 am and 7:00 pm. The park would typically have one soccer field, one cricket field, or up to 2 volleyball nets set up. A weekday schedule may include two back to back soccer practices from 3:30 pm to 6:30 pm with approximately 15 players per practice or volleyball practices from 5:00pm to 7:00pm with approximately 8 players per net. Saturday games for volleyball typically occur between 8:30 am and 11 :30 am with a cricket game from 12:00 pm to 7:00 pm. The soccer leagues are youth leagues and the volleyball leagues are adult leagues. It was assumed that many of the soccer players are dropped off by parents. Trip generation was estimated for a worst case scenario which includes parents coming to pick their children up from one soccer practice and other parents dropping off children for the second soccer practice. Assuming that two-thirds of the soccer players are dropped off by their parents, we estimate that the soccer practices would generate 50 trips during the PM peak hour. These trips represent 23 percent of the residential project trips and 7 percent of all project trips. A volleyball practice would generate 16 trips during the PM peak hour assuming all of the players drive their own car and·no carpooling occurs. Table 1 summarizes the PM peak hour trip estimates. 255 Market Street. #200. San Jose CA 95110 (408) 278-1700 Fax (408) 278-1717 WNW.fehrandpeers.com 15-3;).1 Gary Chao December 13, 2005 Page 2 of 3 fp FEHR & PEElts T~A Nsro RiA TlON (0 NSV ~ TAN IS TABLE 1 TRIP GENERATION ESTIMATES - PM PEAK HOUR Use Players In Out Total Soccer2 30' 25 25 50 Volleyball' 16 16 0 16 Notes: 1 Assumes two back to back soccer practices with 15 kids at each practice. 2 Assumes two-thirds of the players are dropped off by parents. 3 Assumes each volleyball player drives their own car to practice. The games are expected to have a higher parking demand than the practices since there will be more players as well as referees and spectators. Assuming an auto occupancy rate of 2.0 persons per vehicle for a soccer game and 0.8 spectators per player, we estimate a parking demand of 30 spaces. If there were back to back games, there would be another 15 spaces needed for the overlap of people coming before the previous game ended for a total parking demand of 45 spaces. Assuming 2 volleyball courts on game day and an auto occupancy rate of 1.2 persons per vehicle, the parking demand for volleyball games is 38 spaces. Table 2 summarizes the parking demand estimated for the park on a weekend game day. A cricket game is expected to have similar number of players as a soccer game with fewer spectators since the games last longer, so the parking demand for cricket games would be less than the soccer parking demand. As shown in Table 2, back to back soccer games would generate the highest demand of 45 spaces on a weekend day. TABLE 2 PARK PARKING DEMAND ON WEEKEND DAYS Parking Use Players Coaches Referees Spectators Demand . Soccer 30 3 2 24 45' Volleyball 32 4 2 8 38 Assumptions: 1 Assumes two back to back soccer games. One soccer game would have a parking demand of 30 spaces. 2 Auto occupancy of 2.0 persons per vehicle for soccer and 1.2 persons per vehicle for volleyball. 3 2.0 spectators per player for soccer and 2 spectators per team for volleyball. , The current Calabazas site plan shows 68 angled parking spaces on finch Avenue. Thus, adequate parking would be provided for park uses. However, these 68 parking spaces (in I 5, 3 Zð' Gary Chao December 13, 2005 Page 3 of 3 fp FEHR & PEERS TR/INSPORT^IIONCONSUl'ANIS addition to 47 other spaces on Vallco Parkway) for a total of 115 public use spaces are also expected to serve the retail uses of the Calabazas Place project. Therefore, the parking demand for the park may spill over into adjacent parcels such as the HP property on Vallco Parkway and Vallco Shopping Center. The parking mitigation measures described in the Calabazas Place Transportation Impact Analysis (December 2005) such as providing additional on-street parking along the north side of Vallco Parkway and entering a shared-use agreement with HP to use their parking lot during evenings and weekends would help to mitigate the parking impacts. The additional parking maneuvers on Vallco Parkway as a result of the added parking along the north side of Vallco Parkway would not impact traffic operations although there would be more pedestrian traffic crossing Vallco Parkway. These trip generation and parking demand estimates are based on information provided by the City together with staff knowledge of youth and adults sports league activity similar to the library field. If the expected usage of the new park at Calabazas Place should differ or more details become available, these estimates should be reviewed as needed. 1532-1 Superintendent William E. Bragg, Ph.D. Board of Education Pearl Cheng Ben Liao Josephine Lucey Gary McCue George Tyson Cupertino Union School District 10301 Vista Drive . Cupertino, California 95014-2091 . (408) 252-3000 . Fax (408) 255-4450 EXHIBIT C December 6, 2005 Gary Chao, Associate Planner City of Cupertino 10300 Torre Avenue Cupertino, CA 95014-3255 Dear Gary, RE: Toll Brothers Project I am responding to your request for final corrunent on the Toll Brother's Calabaza Project. The district has studied the "Fiscal and Emollment Impacts" report prepared by Town Hall Services dated November, 2005. The district concurs with the analysis and conclusions in the study as presented. Of special note is the facilities funding shortfall. The Town Hall Services study only projects the student growth from development. It does not attempt to forecast the future district total emollment. Other factors may effect capacity other than development. The Fremont High School District contracted demographer has completed his work for them and in the process has developed a data base that will also enable our district to better project the overall impacts of all types of growth. We have engaged him to assist us with these projections. Once his analysis is completed, we will have a better basis for substantive corrunent regarding the overall cumulative impacts of all future development. At the present, the district would not have any formal basis for objecting to this particular project, noting however that there may be a facilities funding shortfall. The district also continues to reserve the right to direct students from any project to attend schools that may be able to better accommodate growth. Sincerely, Isl Rick Hausman Chief Business Officer Cupertino Union School District 15- 330 F REMONT UNION HIGH SCHOOL DISTRICT Cupertino, Fremont, Homestead, Lynbrook, Manta Vista High Schools and Adult/Community Education Stephen R. Rowley, Ph.D., Superintendent of Schools EXHIBIT C December 7, 2005 Ms. Cynthia Wordell, City Planner City of Cupertino 10300 Torre A venue Cupertino, CA 95014 Mr. Gary Chao, Associate Planner City of Cupertino 10300 Torre Avenue Cupertino, CA 95014 Re: Response to the proposed Toll Brothers, L.L.C. Calabazas Place Project Fiscal and Enrollment Impact Analysis Dear Ms. Wordell and Mr. Chao: It is my understanding that the City of Cupertino Planning Commission will soon be . holding a hearing on the proposed Calabazas Place residential development, Toll Brothers L.L.c. being the developer. I have reviewed the Calabazas Place Fiscal and Enrollment Impact Report (Report) prepared by Town Hall Services. Per your request, this correspondence represents my position regarding the project. On previous occasions I have commented on similar proposed residential projects, as well as the recently adopted City of Cupertino General Plan Update. The Fremont Union High School District (FUHSD) appreciates the opportunity to respond to City staff in areas where proposed development will have an impact on FUHSD schools. Below, I offer some additional comments that highlight the District's perspective as it relates to the Toll Brothers proposed 369 residential town homes and flats project. I. The Student Generation Rate (SGR) of 0.10 used in the Report for projected enrollment impacts is appropriate and accepted by both the City of Cupertino and FUHSD. A net of approximately 38 students will likely be generated from this project. These students will be enrolled at Cupertino High School. 2. As stated in the fiscal impacts section of the Report, the development impact fee revenue is nearly $411,000 less than the total facilities cost impact to house the 38 students generated as a result of the proposed project. This is not a benefit to the District. 3. It is estimated that the assessed valuation of the property will generate more property tax revenue to FUHSD than the cost of the students coming from the' project. The estimated amount of revenue in excess of the cost per student is roughly $10,000. This is a financial benefit to the District (see Report discussion for operational revenue and impacts). BO,tRD 0/: TRUST/;.-ES: Kathryn Ho, Avie Katz. Nancy 04_ Newton, Barbara F Nunes. Homer H. C. Tong 589 West Fremont Avenue Post ütf1ce Box F Sunnyvale, CA 94087 AN EQUAL OPPORTUNITY EMPlOYER (408) 522-2200 FAX (408) 245-5325 http://www.fuhsd.o·g/J5_ 331 Page 2 Re: Toll Brothers Calabazas Place Project December 7,2005 4. In a previous letter to the City regarding the impact of growth on the capacity of our schools, I stated that we were within two months of completing a long-range enrollment study, as well as a school capacity study. We are not yet done with those studies. However, I reiterate my concern that the cumulative effect of housing projects, especially in the Cupertino High School attendance area, may in fact push our student enrollment figures beyond school capacity. 5. Unlike an elementary school, where enrollment increases can be mitigated by portable classrooms, the impact of increased enrollment in high schools does not have an easy solution. When a high school's enrollment substantially exceeds its capacity, it creates extreme pressure on course offerings and core facilities during the day (e.g., lunchroom or library). There is no specific number that qualifies as "substantially exceeds." However, we must be very wary of the cumulative effects on one schQol that would create more than a 10% increase above its capacity. 6. The planned developments in the Valleo portion of the City will generate student growth in the Cupertino High School attendance area. The total magnitude of those projects is 966 units, with a cumulative enrollment impact of 95 students, much greater than just the Toll Brothers impact of 38 students if considered individually. Regardless of dollar figures that will help mitigate the impact of growth, I am concerned in that these projects will have a negative impact on school capacity and its core facilities. The Fremont Union High School District staff will continue to cooperate with the City's staff to evaluate each new development proposal based on the impact to our general fund, school capacity, and physical facilities. We will do so on a proposed project-by-project basis, as well as continuing to assess the cumulative impacts of development over time. Si'{f~ Stephen R. Rowley Superintendent ~. '--. FIJI-ISD Buard of Tru5tees 1,- 33Z Applications: Z-2005-04, U-2005-15, EXC-2005-18, EA-2005-07, TM-2005-04 Calabazas Place January 10, 2006 Page 9 Cohesive Office Policy Cohesive commercial centers and office parks are necessary to maintain a healthy sales tax base for the city and to retain opportunities for existing businesses to expand in response to changing business trends. Cupertino's major retail commercial centers are located at Valko Fashion Park, The Marketplace and Portal Plaza centers, Cupertino Village, the Oaks and the Crossroads Commercial District; the office parks are located at Valko (North of Highway 280), North De Anza Boulevard and Bubb Road. Projects with residential or quasi-public components to replace some or all of the existing industrial, office and commercial uses on a site in these areas will be evaluated on a case by case basis to determine if they are complementary to the overall business park or shopping center, or otherwise meet the office conversion findings. As mentioned previously, the project proposes the demolition of an approximately 150,000 sq. ft. of industrial office building on the north parcel and replace it with condominiums. In order to replace the existing 150,000 square foot office building on the north parcel, the following criteria must be met: 1) Integrate into the existing land use pattern by: · Continuing established land use patterns (e.g. commercial next to commercial or residential adjacent to residential) · Continuing patterns of building massing, setbacks and height · Establishing logical development patterns bounded by visible natural or man- made features such as a public or private road, creek, freeways etc. Response: The proposed project is integrated into the existing land use pattern. The project is adjacent to the Metropolitan and the approved Rosebowl residential mixed-use projects. All buildings proposed conform to the General Plan's height limit and are consistent with the height of adjacent buildings. The project respects the existing street rights-of-way throughout the project, maintaining the existing public streets and signalized intersections. Both Valko Parkway and Finch Avenue are proposed to be narrowed and through lane reduced to calm traffic, allow pedestrian oriented site design, active retail and public parking for the park and the commercial center. 2. Provide visible pedestrian/bicycle connections to and from existing uses. Response: The project streets are designed to slow traffic and facilitate walking and bike movements. The project proposes to maintain the existing Valko Parkway bike lane providing easy access to the existing Valko mall and the Wolfe Road a~terial. Textured pedestrian crosswalks are required on Valko Parkway at the new intersections west of Tantau Avenue. The sidewalks along Valko Parkway and North side of Stevens Creek will be enhanced. Pedestrian crossing across Stevens Creek Blvd. will be enhanced and improved for safety and to encourage walking 9 1'- 333 Applications: Z-2005-04, U-2005-15, EXC-2005-18, EA-2005-07, TM-2005-04 Calabazas Place January 10, 2006 Page 10 to the public park and shopping center. A new sidewalk is proposed along the west side of Tantau Avenue between Valko Parkway and Pruneridge including a raised sidewalk along the existing bridge over 1-280 to allow safe pedestrian passage from the proposed project to the Office and Research parks in Valko North area. 3. Provide a visible and publicly accessible park/ plaza or open space area. Response: Total public park area of 3.5 acres is being dedicated to the City for use by the Parks and Recreation Department in creating both passive and active recreational opportunities. The shopping center proposes many public areas with seating, street furniture, outside dining, and features a public plaza with a fountain and relocated trees at the northwest corner near Valko Pkwy. 4. Orient active building spaces to the public or private rights of way. Response: A number of the store spaces feature front and back storefronts focused on the ample common areas created in front of each entrance, thus permitting customer entrances from either side. This allows for active retail and pedestrian activities along both public and private rights of ways. The major anchor tenants (e.g., grocery store and drug store) will be oriented to the public sidewalk and plazas of the Auto Court. 5. Provide superior building design with high quality natural materials and building architecture. Response: The buildings are designed by architects Kenneth Rodrigues & Partners and Van Tilburg, Banvard, and Soderbergh, with landscape design for the entire project by The Guzzardo Partnership. The conceptual architectural designs contained in the rezoning application are representational, attesting to the outstanding quality that will be brought to the entire project. Specific storefront design detail and façade finishes will be prepared in larger scale and detail and submitted for City approval after the rezoning approval is granted. 6. Demonstrate there are sufficient existing or supplemental local revenues to support municipal and school services needed to serve the development. Response: ' Economic & Planning Systems, Inc. has prepared an independent Financial Impact Analysis. Please refer to the full Fiscal Impact Report for detailed information (Exhibit E). Director of Administrative Services, Carol Atwood, reviewed the fiscal analysis and concludes the following: 10 / 5 ~ 33'i- Applications: Z-2005-04, U-2005-15, EXC-2005-18, EA-2005-07, TM-2005-04 Calabazas Place January 10, 2006 Page 11 A. The assumptions used in the fiscal model are reasonable with the exception of the expected capture ratio for retail purchases from the new condominiums due to the following: » Cupertino's expected capture of retail sales from new residential is significantly less than comparable jurisdictions because of the high ratio (approximately 49%) of business to business sales tax generated in community. » Cupertino does not have significant "big ticket" sales merchants such as appliance stores or automobile sales. B. The project will principally benefit from the on-street parking and the adjacent park improvements. The requirement that the applicant create a Landscaping and Lighting District (LLD) to maintain the public street frontages and the park area will sufficiently offset the sales tax capture ratio. The project should still result in a net surplus of revenues over costs if the maintenance costs are borne by the future property owners through an LLD. The LLD will be added to the conditions of approval of the project. 7. Show that the building is functionally obsolete in a market sense and cannot be reasonably redeveloped or marketed into a compatible use within the surrounding area, or show the existing building/ use is no longer complementary to the larger commercial center or office park. Response: Please refer to the letter from Hewlett-Packard Company dated January 6, 2005 (Exhibit I) in reference to the building's occupancy, functionality and marketability . 8. Show that the development can reasonably stand alone as a self-sufficient land use that is otherwise complementary to existing buildings and uses. Response: The proposed mixed-use and pedestrian-oriented master plan community can stand alone as a self-sufficient land use. The proposed full service shopping center and residential condominiums will be able support each other. If approved, this project will create a community unlike any other in Cupertino with public and private open space, neighborhood-shopping opportunities, and a variety of homes in different sizes and price ranges. Each of the uses proposed complements an existing land use, and the proposal provides a much-needed large public park at the east end of Cupertino. 11 15-335 Applications: Z-2005-04, U-2005-15, EXC-2005-18, EA-2005-07, TM-2005-04 Calabazas Place January 10, 2006 Page 12 9. Show that the residential or quasi-public use provides an incentive to incorporate a significant component of commercial or offices uses on the site. Response: Toll Brothers' proposal replaces the existing obsolete office building close to a one- to-one basis with retail commercial space. Calabazas Place is a master plan that contains approximately 115,000 sq. ft. of retail space as well as approximately 369 to 402 new homes. The retail center will offer leasing opportunities for general retail stores and restaurants and retail-oriented office users such as dental and medical services, real estate and insurance agencies, and financial providers. The project will also provide an opportunity for Cupertino residents a Community Meeting Room designed into the shopping center plan facing onto a portion of the proposed new public park. TECHNICAL ISSUES Setback Exception Section 1.01.030 B 1 of the Heart of the City Plan requires frontage setbacks (along Stevens Creek) to be no less than 35 feet from the curb. The commercial project requires an exception to have an average 35-foot (ranging from 26 feet minimum to 57 feet maximum) frontage setback along Stevens Creek Blvd. The General Plan encourages active retail developments to be pedestrian oriented and have a strong street presence in the Vallco Park South area. This is achieved by having the buildings closer to the street, providing essential pedestrian amenities (i.e., canopies, furniture, special paving materials, lighting and other features to enhance pedestrian activity) and essential landscaping improvements along the street. The proposed average 35-foot front setback is similar to the setback of the Panera Bread/Pee!' s Coffee building along Stevens Creek Blvd. The proposed perimeter commercial buildings (c, D, E, F) in the commercial center are all designed to be double loading, with access both from frontage streets and from the interior parking lot. The detailed landscaping and site plan will be submitted for review at the Architectural and Site approval stage to ensure that all of the above mentioned pedestrian amenities are provided. Design Site Plan The existing office building is located on the north parcel, north of the Valko Parkway. The proposed project consists of six commercial buildings and seven residential , buildings. The commercial buildings are located on lot 3 in the middle of the project bounded by Finch Avenue to the west, Vista Drive (a new private access drive) to the east, Valko Parkway to the north and Stevens Creek Boulevard to the South. The main entrance driveway to the center will be from Stevens Creek Blvd. with auxiliary access 12 J"g)6 Applications: Z-2005-04, U-2005-15, EXC-2005-18, EA-2005-07, TM-2005-04 Cala bazas Place January 10, 2006 Page 13 from Finch Avenue and Valko Parkway. The entry driveway is enhanced with pavers and double rows of trees on either side of the drive. The commercial center has frontages on four streets with double loading shops that open onto the streets and onto the interior pedestrian and courtyard areas. The center's location to the residential buildings allows for a true mixed-use concept for residents from adjacent units to be able to walk to shops or dine at the restaurants and then walk to the park with out getting in a car. Pedestrian pathways within the center and links to the residential buildings will provide easy pedestrian and bicycle access. The proposed public plazas and outdoor dining areas will also create activity nodes and meeting spots for the residents of the area. The new residential neighborhood will consist of attached multi-family condominiums on 3 lots (lots 1, 4 & 5). Lot 1, (West Terrace) - a 96 unit condo podium project is located at the southwest corner of Finch A venue and Vallco Parkway. It is bounded by the proposed 3.5 acre park to the south and north and the main access will be from Valko Parkway. Lot 4, (East Terrace) - a 118 unit condo podium project is located at the northwest of Tantau Avenue and Stevens Creek Blvd. with a private access drive (Vista Drive) from both Stevens Creek Blvd. and Valko Parkway. Lot 5 (North Terrace/Villas) - 156 condo units in five podium buildings are located north of Valko Parkway bounded by Tantau Avenue to the east, Calabazas Creek to the west and 1-280 to the north. Architecture Only conceptual elevations were submitted for review as part of this approval since the applicant will apply for Architectural and Site approval (ASA) after the zoning and the use permit are approved by the City. Staff and the City Architect have identified the following issues relating to architecture that will be addressed at the ASA approval stage: General .:. High quality materials and exceptional architectural detailing shall be used throughout the project. .:. Architectural style and materials between the residential and commercial must relate and be compatible. Commercial .:. Use warmer materials and colors on the commercial shopping center .:. More interior parking lots shading trees should be provided in the parking court and along the shops. .:. Detail design guidelines shall be developed to ensure that future tenants will adhere. .:. Provide a stronger distinct architectural expression for the retail center. .:. The tenant space at the terminus of the entry drive must provide a stronger architectural feature since it is a focal point of the center. 13 IS-j31 Applications: Z-2005-04, U-2005-15, EXC-2005-18, EA-2005-07, TM-2005-04 Calabazas Place January 10,2006 Page 14 .:. Develop stronger pedestrian amenities (i.e., canopies, trellises, outdoor seating areas, plazas, special paving materials, seats, lights and fountains). .:. Stronger screen buffers (landscaping & screen walls) should be considered to help screen the loading areas of the shopping center along Valko Parkway. Residential .:. East Terrace should have a functional and architectural entrance along the Stevens Creek Blvd. frontage. The entry feature shall also serve as a significant building break in the long façade. .:. Stronger projecting elevations along major streets (Stevens Creek & Tantau) .:. Eliminate the hip roof element in favor of a stronger modern design expression. .:. Add metal cornices and wall cap elements that relate to the retail center. .:. Provide higher quality and better delineated pedestrian scale entries from the street. .:. Consider corner bakonies to improve the visual transition at the building corners. .:. There needs to be a cohesive architectural concept that all of the residential complexes draw from. TRAFFIC IMPACT ANALYSIS The site has good vehicular access with driveways on Valko Parkway, Stevens Creek Boulevard and Finch Avenue. One full-access driveway will be provided on Valko Parkway to the north residential buildings. A right-turn in and out driveway will provide access to the west residential units located north and west of the public Park. A driveway to the east residential units will be provided on a new internal road between Stevens Creek Boulevard and Valko Parkway. Access to the retail uses will be provided by two right-turn only driveways on Stevens Creek Boulevard and one driveway on Finch Avenue. These driveways provide adequate capacity for vehicles to enter and exit the project site. Access to the western residential units is provided by a right-turn only driveway on Valko Parkway. Westbound drivers on Valko Parkway will be required to make a U-turn at Perimeter Road to enter these units. A traffic report was prepared by Fehr & Peers Associates, Inc. on December 2005. With demolition of the existing 150,300 square feet of office space, the proposed 120,000 square feet of retail and 369 residential units is estimated to generate a net increase of 5,676 daily trips, a net increase of 12 AM peak hour trips (133 fewer inbound/145 added outbound) and a net increase of 447 PM peak-hour trips (327 added inbound/120 added outbound). Intersection impacts were evaluated at twenty-one key intersections with level of service cakulations during the weekday morning (AM) and evening (PM) peak periods for Existing, Background, Project, and Cumulative Conditions. The results of the analysis showed that the proposed project would not have a significant impact on any of the study intersections through Project Conditions. The proposed 14 ),-';'1 Applications: Z-2005-04, U-2005-15, EXC-2005-18, EA-2005-07, TM-2005-04 Calabazas Place January 10, 2006 Page 15 project would have a less-than-significant impact to the freeway segments. Under Cumulative plus Project Conditions, the Valko Parkway and Wolfe Road intersection would operate unacceptably and the project would have a significant cumulative impact. As a mitigation measure, the project will be required to re-stripe the westbound through lane on Vallco Parkway to a shared through/ right lane. This will allow the intersection to cumulatively operate at an acceptable level of service. A traffic simulation model using SimTraffic software shows there is good progression along Wolfe Road and Stevens Creek Boulevard with the exception of the eastbound left-turns on Stevens Creek Boulevard at Wolfe Road. However, the elimination of a through lane and installation of parallel on-street parking is not recommended unless it is part of a larger project to reduce through capacity or provide parking on a longer segment of Stevens Creek Boulevard. The number and spacing of the driveways is sufficient to accommodate the projected traffic volumes generated by the proposed development. The on-site circulation is considered acceptable. Fehr and Peers also projected the trip generation for the 3.5-acre public park. The park is expected to have similar uses as the Library Field on Torre Avenue. The park is estimated to generate 50 PM peak trips. These trips represent 7 percent of the total project trips and will not have a significant impact (See table below). TABLE 1 TRIP GENERATION ESTIMATES - PM PEAK HOUR Use Players In Out Total Soccer 30' 25 25 50 Volleyball3 16 16 0 16 Notes: 1 Assumes two back to back soccer practices with 15 ktds at each practice, 2 Assumes two-thirds of the players are dropped off by parents. 3 Assumes each volleyball player drives their own car to practice. The recommendations of Fehr and Peers will be included in the condition of approval along with the final recommendation of the City Council. PARKING ANAYLSIS As shown in Table 9 below, the City of Cupertino's Municipal Code requires 1,271 parking spaces including 533 retail and restaurant and 738 residential parking spaces. The City's Municipal Code requires 2 (1 covered and 1 uncovered) spaces for every condominium unit. 15 1,-331 Applications: Z-2005-04, U-2005-15, EXC-2005-18, EA-2005-07, TM-2005-04 Calabazas Place January 10, 2006 Page 16 TABLE 9 PROJECT PARKING REQUIREMENTS AND SUPPLY City Code Requirements Use Rate Spaces Parking Provìdedt Retail (87 ksO 1 per 250 sJ. 348 Restauranl with bar (150 seats 1 per 3 seats 50 & 20 employees) 1 per employee 20 Restaurant without bar (100 1 per 4 seats 25 405 seats & 10 employees) 1 per employee 10 Specialty Food (10 ksf wi no 1 per 250 sJ. or 40 seats & 9 ksf wi 120 seats) 1 per 3 seats 40 North Townhomes (10B d.u.) 216 305 North Condos (48 d.u.) 2.0 per d.u. 96 100 West Condos (95 d.u.) 190 196 East Condos (11B d.u.) 236 255 Tota --- 1,271 1,261 Notes: 1 The on-street paoong on Valleo Parkway (47 spaces) and Finch A....enue (68 spaces) can be used by guests, residents, rstafl customers, and public park users. However, the on-street parking Îs not included În the proposed on-site parking sum. Source: City of Cupertino. City of GupertinoMunicipaJ Code: Chapter 19.100 Parl<ing Regufations, 2005. The parking requirement for the retail use depends on the final size and land use of buildings in the shopping center. The project applicant has indicated that there will be two restaurants, one with a bar and one without and 19,000 square feet of specialty retail. The remaining 87,000 square feet would be general retail. The proposed project will provide 1,261 on-site parking spaces including 405 retail (all surface), 856 residential (752 underground and 104 surface) parking spaces. The project will provide sufficient parking for the residential uses. However, the retail and restaurant parking supply (405 spaces) does not meet City parking requirements (533 spaces). The project will provide 68 angled parking spaces on both sides of Finch A venue. One travel lane on Valko Parkway will be replaced with 47 angled and parallel parking spaces along the project's frontage. The parking analysis did not consider anyon-street parking on Stevens Creek Blvd. Assuming all of the on-street parking on Finch Avenue and Valko Parkway (115 spaces) were for the retail uses, the project would still provide 13 fewer . spaces than required. In addition, it is likely that the on-street spaces will be used by guests, residents, and public park users. The proposed 3.5-acre park is expected to have similar uses as the Library Field on Torre Avenue. These uses include but are not limited to soccer, cricket, and volleyball league play. The different sports are scheduled so their games and practices do not overlap. According to the Park and Recreation Department, the practices typically occur on weekdays between 3:00pm and 7:00pm. Games are held on Saturdays between 8:00 am and 7:00 pm. The following table summarizes the parking demand estimated for the public park on a weekend game day using similar scheduling information as the Library Field. 16 15~'3'¡'O Applications: Z-2005-04, U-2005-15, EXC-2005-18, EA-2005-07, TM-2005-04 Cala bazas Place January 10, 2006 Page 17 TABLE 2 PARK PARKING DEMAND ON WEEKEND DAYS Parking Use Playe rs Coaches Referees Spectators Demand Soccer 30 3 2 24 45' Volleyball 32 4 2 B 38 Assumptions: 1 Assumes two back to back soccer games. One soccer game would have a parking demand of 30 spaces. 2 Auto occupancy at 2.0 persons per vehicle for soccer and 1.2 persons per vehicle for volleyball. 3 2.0 spectators per player for soccer and 2 spectators per team f-or volleyball. As shown in Table 2, back-to-back soccer games would generate the highest demand of 45 spaces on a weekend day. Factoring in the park parking demand, the project would provide 58 fewer spaces (13 + 45) than required. As mentioned previous in the report, staff recommends that the project reduce approximately 40 residential units and approximately 31 additional diagonal parking stalls could be potentially added along the north of Valko Parkway. The parallel stalls south of Valko Parkway along the East Terrace project frontage should be revised to diagonal stalls in order to be symmetrical with the new diagonal stalls on the north side. Additional mitigation measures to reduce the parking impact and potentially balance the parking deficiency should also include one or more of the following items: .:. Provide valet parking either on-site or at an off-site location, .:. Provide off-site employee parking with a shuttle, .:. Enter into a shared-use agreement with HP to use their parking lot during the evenings and weekends, .:. Add on-street parking along the north side of Valko Parkway, and .:. Reduce the size of the retail or restaurant uses, .:. Development a parking monitoring program where 70 to 80 percent of the retail uses and one restaurant could open with a parking monitoring program that would survey the actual parking demand. If there is adequate parking available, then the rest of the center could be developed. Bike Parking The site plan does not indicate bicycle parking facilities. The project is required to provide 148 Class I bicycle parking spaces for residents (0.4 Class I bicycle spaces per dwelling unit), and 24 Class II bicycle parking spaces for retail customers (0.05 Class II bicycle spaces per auto retail space). ' To accommodate demand and encourage non-motorized transportation use, bicycle parking should be conveniently located near on-site bicycle and pedestrian routes. Class 17 J S - '3 ef/ Applications: Z-2005-04, V-2005-15, EXC-2005-18, EA-2005-07, TM-2005-04 Calabazas Place January 10, 2006 Page 18 I facilities are long-term parking spaces that protect the entire bicycle and accessories from theft. These long-term facilities include bicycle lockers, restricted access rooms, and constantly monitored enclosed cages. Class II facilities are short-term parking spaces within constant view of adjacent buildings or located at street floor level. The Class II facilities consist of a stationary object that users can secure the frame and both wheels with either U-shaped locks or padlocks. Pedestrian Paths As a substantial public benefit of the project, it is recommended that sidewalks be provided along the west side of Tantau Avenue between Valko Parkway and Pruneridge Avenue including a raised sidewalk along the existing bridge over 1-280. Currently, sidewalks exist only on the east side of Tantau Avenue. Textured pedestrian crosswalks are recommended on Valko Parkway at the new intersection west of Tantau Avenue. In addition, pedestrian countdown heads are recommended at the Stevens Creek Boulevard intersections with Finch and Tantau Avenues. Modifications and enhancements to the bicycle lanes on Valko Parkway are also recommended. With these changes, the project is estimated to have a less-than significant impact to the pedestrian and bicycle facilities. Also, as a project amenity, the applicant has agreed to provide a trail along Calabazas Creek from Valko Parkway to 1-280 and connecting to the pedestrian path systems of the North Terrace eventually leading to the new sidewalk along the west side of Tantau Avenue. School Impacts A fiscal and enrollment impact analysis was completed by Townhall Services in November 2005 (Exhibit D). The proposed housing type, sale price, location of development, and socio-economics are factors in determining student generation. The primary difference between the two proposed project options is that Senior Option A proposes a total of 402 residential units, including 80 senior rental apartments, and Condo Option B proposes a total of 369 residential units, which do not include senior units. Though Senior Option A proposes more residential units than Condo Option B, Condo Option B would generate more students because it does not propose senior units. For this reason, the school impacts discussion below analyzes the school impacts based upon the worst-case scenario: Condo Option B. It was estimated that a total of 143 new students could be generated by implementation of Condo Option B. Of the 143 students, 75 would attend Eisenhower Elementary School, 30 would attend Hyde Middle School, and 38 would attend Cupertino High School. As discussed above, these schools have reached their capacities but improvements, boundary changes, and residency verification would create more capacity. The enrollment impacts analyzed assume that project impacts would occur within t1u;ee to 10 years of project completion. Factors that influence student generation in the Cupertino Union Elementary School District (CUSD) and Fremont Union High School District (FUHSD) may change over that time period. In particular, changes in demographics can impact enrollment capacity within the two districts. For example, in 18 ) 5- HZ Applications: Z-2005-04, U-2005-15, EXC-2005-18, EA-2005-07, TM-2005-04 Calabazas Place January 10, 2006 Page 19 approximately four years, the baby boom echo generation will graduate from high school, which will cause a reduction in emollment and create more capacity. Changes in policies within the districts can also affect emollment into the future. Summary of the significant findings identified in the school report: · A capacity deficit would exist at Hyde Middle (133 students), and at Eisenhower Elementary and Cupertino High emollment is approximately at capacity. CUSD has completed or has planned near-term modernizations, renovations, and boundary adjustments that will result in adequate capacity for the Eisenhower and Hyde students. For FUHSD, the District as a whole is overcrowded and is operating at a student per class ratio that is educationally undesirable, and the Cupertino campus likely had a historical students per class ratio far less than the current student per classroom ratio of 32:1. · Facilities costs per student are anticipated to exceed facilities fee revenue per student at CUSD (-$1,955 per student) and FUHSD (-$10,815 per student), or a total facilities cost deficit of (-$205,275) for CUSD and (-$410,970) for FUHSD. · Operational costs are anticipated to exceed operational revenue at the impacted CUSD schools (Eisenhower and Hyde) by -$539. At the impacted FUHSD school (Cupertino High) there will be a net benefit of $7,837 per student using current assessed values, and under higher assessed valuations the impact becomes $10,043 per FUHSD student if real estate market conditions continue to escalate as the proposed project nears completion. Total operational costs are projected to be a deficit of -$56,595 for Eisenhower and Hyde combined, and a surplus of $297,812 (current assessed values), and $381;637 (higher assessed values) for Cupertino High if real estate conditions continue to escalate. State law (Government Code Section 65996) specifies an acceptable method of offsetting a project's effect on the adequacy of school facilities as the payment of a school impact fee prior to the issuance of a building permit. Both school districts are eligible to levy Levell development impact fees on new residential and commercial! industrial development. The maximum Levell residential fee that Cupertino Union Elementary School District and Fremont High School District are allowed to levy is $2.24 per square feet of residential development. Both districts are eligible to levy development impact fees on the proposed commercial development, which is a maximum of $0.36 per square foot of development. The project proposes to pay the school impact fees to reduce impacts to local schools. Both school districts have reviewed the school report and their formal responses are attached at Exhibit C. ' 19 J 5-3'13 Applications: Z-2005-04, U-2005-15, EXC-2005-18, EA-2005-07, TM-2005-04 Calabazas Place January 10, 2006 Page 20 Noise Noise sources affecting the project site and surrounding area include vehicular traffic on 1-280, Stevens Creek Boulevard, Tantau Avenue, and Valko Parkway. Illingworth & Rodkin, Inc. conducted a noise monitoring survey from September 8-9, 2005 to quantify the existing noise environment at representative locations in the area. Noise measurements were taken at three locations: 1) approximately 110 feet from the center of Stevens Creek Boulevard, 2) along Valko Parkway, approximately 325 feet from the 1-280 right-of-way, and 3) approximately 135 feet from the 1-280 right-of-way (refer to Figure 19). Averaged noise levels at the site ranged from 60 to 74 dBA LeIn· The northern portion of the site, closest to 1-280, is exposed to significantly higher noise levels compared to the rest of the project site. Nearby sensitive receptors in the project vicinity include residential uses south of the project site and Stevens Creek Boulevard. Residential and Park Uses The normally acceptable noise level for multi-family residential units is up to 65 dB LeIn· Based on the existing noise measurements and the projected increase in traffic noise resulting from the proposed project, the proposed residential units could be exposed to noise levels of up to 74 dBA LeIn' Noise levels at the upper floors of the proposed residential units, due to greater exposure to noise from the freeway, could reach an LeIn of 81 dBA, which is classified as a "clearly unacceptable" noise level. The proposed residential uses, therefore, could be exposed to noise levels above the City's normally acceptable noise level for multi-family residential environments. Under Condo Option B, the noise levels at all of the proposed courtyards are projected to be 65 dB LeIn or less, which would be consistent with the City's normally acceptable noise level for outdoor residential areas. Due to the orientation of the condominium building proposed furthest to the north on the north parcel, noise emanating from 1-280 would be shielded from the courtyard located in the northern portion of the project site. The noise levels at the proposed private park will be 65 dB or less, which would be consistent with the City's normally acceptable noise level for outdoor use areas. Commercial Uses The normally acceptable noise level for commercial centers can be up to 70 dB LeIn· Based on existing noise levels and the projected increase in traffic noise resulting from the proposed project, the noise levels at the proposed commercial uses located on the southern portion of the project site, south of Valko Parkway, will be up to 67 dBA LeIn· The proposed commercial uses, therefore, would be within the City's normally acceptable noise levels for commercial centers. Noise Impacts from the Project The City of Cupertino's Noise Ordinance restricts noise generated by non- transportation sources to a maximum level of 60 dBA during the daytime and 50 dBA 20 } S- 3t.ft/- Applications: Z-2005-04, U-2005-15, EXC-2005-18, EA-2005-07, TM-2005-04 Cala bazas Place January 10, 2006 Page 21 during the nighttime at residential property lines.. Operation of the proposed commercial uses on the site, including truck movements, loading/unloading deliveries, and mechanical equipment (including air conditioning and/ or refrigeration units), could exceed 60 dBA during the daytime and/ or 50 dBA during the nighttime at the proposed, nearby residences. These impacts will be reduced to a less than significant level with the following mitigation measures: · Locate and shield loading docks in a way to minimize their noise impacts. · Acoustically treat rooftop mounted mechanical equipment appropriately. · Limit hours of deliveries, Monday through Sunday, from 7 AM to 7 PM. Construction-Related Noise Impacts The City's Noise Ordinance requires that noise levels at adjacent properties not exceed 80 dBA during construction. The project could result in a substantial temporary increase in noise levels of up to 85 dBA in the project area during construction. The Construction noise impacts will be reduced to a less than significant level with the following mitigation measures: · Limit demolition and construction activities to non-holiday, daytime hours between 7:00 AM and 5:00 PM. · Construct noise barriers to shield adjacent sensitive uses from proximate construction activities on the site. · Utilize" quiet" models of air compressors and other stationary noise sources where technology exists. · Equip all internal combustion engine-driven equipment with mufflers that are in good condition and appropriate for the equipment. · Locate all stationary noise-generating equipment, such as air compressors and portable power generators, as far away as possible from businesses, residences, or other noise-sensitive land uses. · Prohibit all unnecessary idling of internal combustion engines. · Notify all adjacent businesses, residences, and other noise-sensitive land uses of the construction schedule in writing. · Designate a disturbance coordinator, responsible for responding to complaints about construction noise. The name and telephone number of the disturbance coordinator shall be posted at the construction site and made available to businesses, residents, and other land uses adjacent to the project site. · Submit a Construction Management Plan to the Director of Public Works for review and approval prior to issuance of building permits. The Plan must identify a construction schedule, street cleaning schedule, staging area, truck routes, construction signs, and construction employee parking. The noise consultant's recommendations have been added to the conditions of approval for the project. 21 J5-NS Applications: Z-2005-04, U-2005-15, EXC-2005-18, EA-2005-07, TM-2005-04 Calabazas Place January 10, 2006 Page 22 Affordable Housing 15% (55 units) of the Condo Option B (369 units) will be BMR units dispersed throughout the project. The Senior Option A, will include 20% BMR in form of 80 low-income senior units all located in one building at the northeast corner of the project site. The Housing Commission reviewed the project on August 11 & October 13, 2005. The Housing Commission recommends approval of the project only if the project can meet the following requirements: · The Cupertino Below Market Rate (BMR) Manual, 15% of the project shall be BMR units and the BMR units must be comparable in size to the market rate units. · The BMR units shall be dispersed throughout the market rate development and not be concentrated in one area. · The developer shall provide a mix of housing types, including one-bedroom units that can accommodate seniors. Small family housing is a priority in the City of Cupertino's Consolidated Plan and units should be accommodated on site to serve these families. With the exception of the one-bedroom units, which shall not exceed 50% of the BMR units, the BMR units shall reflect the square footage and design of the market rate units The Senior Option A would not be consistent with these requirements. Even though the Senior Option A offers 20% BMR in from of 80 senior apartment units. The total combined square footage of the senior units falls short of 15% of the total square footage of the project. In addition, the senior apartment units are concentrated in one building located at the northeast corner of the project site. Landscaping and Tree Removal A tree survey of the project site by Barrie Coate & Associates (2005) assessed trees that were six-inches in diameter or larger. A total of 317 trees were reported on the project site. A complete table of the surveyed trees, including their species, diameter, and health, is included in arborist report attached (Exhibit A). In addition, there are nine landscape trees located in the median on Finch Avenue. The most common species on the site include shamel ash and coast redwood. The vast majority of the trees on-site are in excellent to fair health; 22 trees are in poor health or dead. Of the trees located on-site, eight are considered Specimen Trees (tree numbers 126, 212, 213,214,215,251,252, and 253. The size, estimated height, and condition of each Specimen Tree is listed in Table 7 below. Specimen Tree number 126, a valley oak, is dead. All other Specimen Trees are coast live oak trees and are all generally in excellent health. The coast live oak trees are located along the western boundary of the project site near Calabazas Creek. The Specimen oak trees range from 12 to 16 inches in diameter and are between 20 and 30 feet in height. ' There are no heritage trees on the site. 22 15 - 3<.ff; Applications: Z-2005-04, U-2005-15, EXC-2005-18, EA-2005-07, TM-2005-04 Calabazas Place January 10, 2006 Page 23 Table 7 Summary of Specimeu Trees On-Síte Diameter Tree Common in inches Approx. ... ::\ame Sdl'lItiflc ;Vallle (4.5 feet Height Healthl Structure! " above (in feet) grade) 126 Valley oak QuercCls lobata 57 50 Dead Dead )12 Coast live oak Quercus agri{olia 16 " 1 I .)~ 213 Coast live oak Ouercus agri{olia 12 20 2 I 214 Coast live oak QuerClls agri{olia 15 25 I I 215 Coast live oak Quercus af;ri{olia 15 25 1 I 251 Coast live oak Quercus ag¡ifoha 16 20 2 I 252 Coast live oak OuerClls a~ri{olia 16 30 1 2 253 Coast live oak OuerCIL~ aglifolia 12 30 2 2 .:.\'atcs: Locations of trees are ShOll'll in FigUTO 1 Ô. 1 Hu.alth: 1=ExcelleI1t, 5=Extrœ1ie~1'Poor 1 Stru,Cí'ure: i=ExcelJenî, 5=E":tremel.v Poor The project proposes to remove 149 non-specimen trees in the building and improvement areas. The City Arborist recommends that an additional 12 non-specimen trees be replaced due to their poor health and 12 trees be transplanted. The City Arborist also identified 21 non-specimen trees that potentially may need to be removed due to root damage from the improvements and construction. Prior to the issuance of building permits, the City Arborist shall review the final construction documents and provide additional recommendations on tree protection and replacement. The recommendations of the arborist will be included in the condition of approval along with the final recommendation of the City Council. Sanitary Sewer Sanitary sewer service is available to the site via existing sewer system in an existing sewer easement as well as an existing sewer system in Tantau Avenue. Due to the potential complexity of the project, the Cupertino Sanitary District cannot determine the downstream availability of service for site support. A flow study may be necessary to determine the impact of the proposed improvements on the existing sanitary sewer system and whether if off site improvements are necessary. Improvement plans for the project will be reviewed by the Sanitary District prior to issuance of building permits. Neighborhood Outreach Toll Brothers held two neighborhood meetings, one on September 21, 2005 at the HP campus and the second meeting on November 14· 2005 at Cupertino High School. The concerns and comments raised at the meeting are summarized as follow: . School Impacts. 23 15~J'¡"1 Applications: 2-2005-04, U-2005-15, EXC-2005-18, EA-2005-07, TM-2005-04 Cala bazas Place January 10, 2006 Page 24 · Traffic Impacts. Cut through traffic to adjacent neighborhoods. · Competition against Valko Shopping Center and Rose Bowl Development · Lack of communication and coordination with the Valko developers with regards to ho.w the two projects will co-exist. Might create negative competition. · Tree preservation. · Lack of architectural interest. Commercial project not matching the architect style of the residential projects. · The desire for more shading trees in the commercial parking lot. Not palm trees. · Pedestrian crossing enhancements. · The design of the rear of the shopping center. Submitted by: Approved by: Gary Chao, Associate Planner Steve Piasecki, Director of Community Development_,,>fJ,('. /l.J v!.c. d-<2-<' c/J..-I ¿iA.T-- ENCLOSURES Model Resolutions will be available at the meeting Initial Study - already provided to the Commission on Recommendation of the Environmental Review Committee Zoning Plat Maps Plan set Exhibit A: Arborist reports from Barrie D. Coates and Associates dated July 21, 2005 and October 30, 2005. Exhibit B: Traffic Impact Analysis prepared by Fehr and Peers dated December 2005. Exhibit C: Communication from Cupertino Union School District and Fremont Union School District dated December 6, 2005 and December 7, 2005 respectively. Exhibit D: School Impact Report prepared by School House Services dated November 2005 Exhibit E: Fiscal Impact Analysis prepared by Economic & Planning System, Inc. dated December 2005. Exhibit F: Hewlett-Packard Proposal (August 2002) Exhibit G: Toll Brothers Proposal (August 2004) Exhibit H: Toll Brothers Proposal (January 2005) Exhibit I: Communication from Hewlett-Packard Company received January 6, 2005. G: \ Planning \ PD REPOR T\ peUsereports \ 2005ureports \ U-2005-15.doe 24 ¡,-3<fð' ..... ""'"...... ..::¡,.~ 4"V.;>~...... "Nt _ ........ ~~6'7' EXHIBIT J ... ~ 6.36 GROSS AC 4.71 NET AC OT3 ...... '..> ...... 'O~4 / c.'~ ~~ DRAFT ~ 4i$Þo / "" '- \S'~~ / --::!,,,-~-- / ~;. ,. ~~ ~"'''''''- ~~.. '- '- ~J.- ì / / LOT6 I~ II '< .~ PI '- ,. ",-16;.;0· <! ¡s " ~I~ s¡o!: ~I I bl ~. I'" .~ J? ~ 1 I , ',~ t; hi ~ ,~ , , ,. ~i t !"> ~ ,~ , ~'9 J ~ ..::¡,- ....... 4v"?1faJó'_L REZO~ :!.!~!.!.: FROM: , P(MP), PLANNED INDUSTRIAL ZONE TO: Pl~,JÎ, f-ILANNt.u f')[~,[U3P,~tG:T / MUl.. Jl ~1".':L), f\[31BCh rtÂL PC RES , COM) '~~_((eV\-t\czJ2.1 NOO'28"6'"W ¡ , _ () 14.00' CMW'\'HC i~'-< R-25.00· t::. -90n?í70'" L-Jfl.27' SB9:J1-:;';·W2f5.0J' SCALE.' l' I I =1~ .... '--- - - ~O.:t004 ~4V<, . -- -- ~Bkf --I""""f'_ Subject CALABAZAS PLACE ZONING PLAT MAP LOT 5 Job No. 20056051 By RO Date SHEET 981 RIDDER PARK ORIVE SUITE 100 SAN JOSE, CA 95131 408-467-9100 408-467-9199 (FAX) 1~-'34-i 9/16/05 Chkd.JM S OF 6 ~Bkf August 29, 2005 BKFNo.20056051-10 Page I of 2 EHGJHËERS-,SUII!VEYORS<, PlAKNEJt5 EXHIBIT "A" LEGAL DESCRIPTION FOR ~O,NING J,>URPOSES Ivr! j/Cllcel LOTS All that certain real property situate in the City of Cupertino, County of Santa Clara, State of California, described as follows: Being a portion Parcel 3, as shown on Parcel Map, filed March 26, 1978 in Book 438 of Maps at Pages 12 and 13, Records of Santa Clara County, more particularly described as follows: BEGINNING at a point on the northerly line of Valko Parkway, being 110.00 feet in width, said point being at the easterly tenninus of the course "North 89°31 '44" East 215.03 feet" of the southerly line of said Parcel 3, as shown on said Parcel Map. Thence along said southerly line of said Parcel 3, South 89°31 '44" West 215.03 feet to the beginning of a curve to the right having a radius 595.00 feet; Thence westerly along said curve through a central angle of 32°13'39", and an arc length of 334.67 feet; Thence North 58°14'37"West 170.97 feet to a point on the northwesterly line of said Parcel 3, to the beginning of a non-tangent curve, concave to the northwest, having a radius of 372.50 feet, from said point a radial line bears North 29°26'28" West; Thence northeasterly, along said curve, through a central angle of 27°37' 18" and an arc length of 179.58 feet; Thence North 32°56' 11 "East 325.31 feet; Thence leaving said northwesterly line, the following five (5) courses: I) South 57°03'49" East 160.99 feet; 2) South 32°55'46" West 322.17 feet to the beginning of a non-tangent curve, concave to the north, having a radius of 515.00 feet, from which a radial line bears North 29°17'27" East; 3) Easterly, along said curve, through a central angle of 32°10'36" and an arc length 0(289.22 feet; 4) North 06°32'42" West 326.67 feet; /5-35"0 Page 2 of 2 5) North 83°27'54" East 165.58 feet to a point on the easterly line of said Parcel 3 and being also a point on the westerly line of Tantau A venue, as shown on said Parcel Map, said point being at the beginning of a non-tangent curve, concave to the east, having a radius of 600.00 feet, from said point a radial line bears South 83°43'27" East; Thence southerly, along said easterly line of said Parcel 3, along said curve, through a central angle of 12°29' 10" and an arc length of 130.75 feet Thence South 06°12'37" East 320.00 feet; Thence South 00°28' 16" East 14.00 feet; to the beginning of a curve to right, having a radius of 25.00 feet; Thence southwesterly, along said curve, through a central angle of 90°00'00" and an arc length of 39.27 feet to the point of BEGINNING. Lot 5 contains an area of 207,739 square feet (4.77 acres) more or less. For: BKF Engineers By: Davis Thresh, P.L.S. No. 6868 License expires: 9-30-2006 Dated: K:ISur051056051ILegalsILot5.doc 15-5SI ~ IIIo..........d Hexagon Transportation Consultants, Inc. 40 South Market Street, Suite 600. San Jose, California 95113. (408) 971-6100 . Fax (408) 971-6102 MEMORANDUM From: Jo Price, Toll Brothers Inc. Kelly Snider, Toll Brothers Inc. Gary Black Mat! Nelson Parking Review of Calabazas Place Mixed-Use Development January 6,2006 To: Subject: Date: This memo report presents the results of our parking analysis for the Calabazas Place mixed-use development in Cupertino, Califomia. The analysis consisted of reviewing two site plans, Altematives A and B, and detennining if adequate parking would be provided. Alternative A proposes 108 townhomes, 214 condominiums, 80 senior housing units, and approximately 115,000 square feet ofretail space. Alternative B proposes 108 townhomes, 261 condominiums, and approximately 115,000 square feet of retail space. The retail component is the same for both alternatives and would consist of87,000 square feet of general retail, 5,000 square feet of restaurant with bar, 4,000 square feet of restaurant without bar, 10,000 square feet of specialty food with no seats, and 9,000 square feet of specialty food with seats. Proposed Parking Supply The proposed parking for each alternative first was compared to the City of Cupertino parking code. Alternative A, which consists of 402 residential units, would require 804 parking spaces per City code. Alternative A proposes 774 on-site spaces and 15 street spaces on Vista Drive for a total of789 parking spaces. To meet the City code, Alternative A also counts 15 on-street spaces on Valko Parkway as residential parking. Alternative B, which consists of 369 residential units, would require 738 parking spaces per City code. Alternative B proposes 841 on-site spaces and 15 street spaces on Vista Drive for a total of 856 parking spaces, which is far in excess of the City code. While the residential component of Alternative B probably has excess parking, this cannot practically be used by the retail center because it is either in gated garages or too remote. The retail component is complised of 87,000 square feet of general retail and 28,000 square feet of restaurant use. Using Cupertino parking guidelines, the retail component for both alternatives would require 533 parking spaces (see Table I). Alternative A proposes 405 on-site parking spaces and 100 on-street parking spaces for a total of 505 parking spaces. Alternative B proposes 405 on-site parking spaces and 115 on-street parking spaces for a total of 520 parking spaces. According to the City of Cupertino parking code neither alternative would meet the parkjng requirement. 15-352. J 0 Price January 6, 2006 Page 2 of2 Parking Demand Analysis The Cupertino parking code does not reflect the interaction between uses that would occur in a shopping center that has restaurants and stores. Inevitably some customers of the restaurants would shop in the stores and vice versa. The parking code treats the individual uses as if they were isolated, free-standing buildings. Some reduction for this interaction is appropriate. Also, the parking code treats all uses as if they were in a suburban setting where all customers and employees must drive. This part of Cupertino is developing as a more urban setting where some trips will be made by walking. Some parking reduction for walking is app;¿pri-~te. Hexagon believes a lO'J:'o reduction to iéflect both these factors would be an appropriate assumption (the actual reductio-~-eãs1fy could be more). With a 10% reduction, the parking requirement for the retail component would be 480 parking spaces. Based on the parking requirement of 480 spaces, a shared parking analysis for the retail components of Alternatives A and B of the Calabazas Place mixed-use development was conducted. The analysis is based on The Urban Land Institute CULl), Shared Parking data. The concept behind shared parking is that when land uses are combined it may result in decreased parking space demand relative to the demand created by separate freestanding developments of similar size. Since most parking codes are developed based on individual land uses, they do not reflect the fact that combined peak parking demand can be significantly less than the sum of the individual demand values. This is true because the peak parking demand for individual land uses· in a mixed-use development can occur at different times. Hexagon calculated the parking demand from 6am to midnight. The parking demand data in the Shared Parking manual show that general retail peaks at. Ipmßurin~_ a typical weekday and at 2p~pm on the weekend. The data showthatrestaurants peak at 7P).Jlt?_9.Plndunng a typical weekday and between 8pm and 9pm on the weekend. The combination of these two components show the highest parkíiigdemaiidfür both alternatives is calculated to be at 7pm on a typical weekday and between 2pm and 3pm on the weekend (see Table 2). Using thÌŠ methodology the peak parking demand éaICUla!es·!o446 parking spaces on a weekday and 388 parking spaces for the weekend. --- Parking for Public Park The site plans show a public park that will be adjacent to the project site. The park will have no parking of its own but will rely on on-street parking on Finch A venue and Vall co Parkway. The retail component of Calabazas Place plans to use some of this on-street parking to accommodate its retail demand. Therefore, an analysis of the joint demand for on-street parking is appl~opriate. According to the December 13, 2005 memo from Fehr and Peers Transportation Consultants to the City of Cupertino, the maximum parking demand for the public park would occur on a 2 IS - 35 ~ Jo Price January 6, 2006 Page 3 00 weekend day and require 4_5..parking spaces. This parking demand was generated based on infOlmation provided by the City together with staff knowledge of sports league activity similar to Library Field. The park would consist of either one soccer field, one cricket field, or up to two volleyball courts, with soccer having the greatest demand for parking. It was determined that the peak demand for parking would occur if back to back soccer games were played. Since games would only be scheduled during weekends at the park, this is when the greatest demand for parking would occur. Although this estimate is conservative, based on previous parking demand studies for soccer fields conducted by Hexagon it would seem adequate as a worst case scenario. Analysis and Conclusions Under Alternative A, the project proposes 405 on-site parking spaces (392 main lot and 13 service lot) for the retail component. The project also will provide a total of 68 angled parking spaces on Pinch Avenue and 47 angled and parallel parking spaces on Val1co Parkway. Of these 115 parking spaces 15 will be needed on Val1co Parkway to meet the residential parking requirement. Assuming the remaining 100 on-street parking spaces on Finch Avenue and Val1co Parkway could be used for the retail uses, the project would provide a total of 505 parking spaces for retail use. Based on the shared parking analysis, the parking requirement of 446 spaces during weekdays and 388 spaces during weekends would be met. This would leave approximately 59 additional parking spaces available on a typical weekday and 117 spaces available on a weekend for the public park, which is adequate to meet the peak demand of 45 spaces. Under Alternative B, all of the 115 on-street parking spaces on Finch Avenue and Val1co Parkway could be available to the retail center because the residential parking requirement is met entirely on site. Thus, Alternative B would have 74 parking spaces available on a typical weekday and 132 spaces available on a weekend for the public park, which is adequate to meet the peak demand of 45 spaces. Thus it is Hexagon's opinion that adequate parking would be provided for all uses under either Alternative A or Alternative B. 3 I S - '3 5'1 Jo Price January 6, 2006 Page 4 of 4 Table I Required Retail Parking for Calabazas Place (based on City of Cupertino Parking Code) Use Code Rate Stalls Adj. Stalls' Retail General Retail (87 ksf) 4/1,000 sf 348 313 Restaurant Restaurant wi Bar (150 seats & 20 employees) 1/3 seats + 1/employee 70 Restaurant wlo Bar (100 seats & 10 employees) 1/4 seats + 1/employee 35 Specialty Food wlo Seats (10 ksf) 4/1,000 sf 40 Specialty Food wi Seats (120 seats) 1/3 seats 40 185 167 Total Stalls Required Per City of Cupertino 533 II 480 , Total parking stalls required were reduced by 10% for internal circulation (walking). \ 4 J5~355 Jo Price January 6, 2006 Page 5 of 5 Table 2 Shared Parking Analysis for Retail at Calabazas Place Retail' Restaurant> Hour of Day Weekday Saturday Weekday Saturday Total Wkdy 600am 700am 800am 900am 1000am 1100am 1200pm ·1/1oopm 200pm I L300pm 400pm 500pm 600pm .--700pm \ 800pm l.900pm 1000pm 1100pm 1200pm o 25 56 131 213 272 304 313 304 297 272 247 257 279 272 191 100 41 o o 9 31 94 141 228 266 297 313 313 282 235 203 188 172 125 119 41 o 167 159 167 167 I 167 167 I o 3 8 17 33 50 84 117 100 100 84 117 150 150 117 84 Total Sat o 3 5 10 13 17 50 75 75 75 75 100 150 o 28 65 148 246 322 387 430 404 398 356 364 407 446 439 358 250 158 84 o 13 36 104 154 245 316 373 388 388 357 335 354 346 339 292 278 183 117 159 142 117 Source: Max parking ratio is based on the City of Cupertino parking codes minus 10% for walking Maximum Required Parking Per Use: 313 retail + 167 restaurant = 480 'Retail based on 87 ksf (4 stalls per 1,000 sJ.) 2Restaurant based on: Restaurant wi Bar (150 seats & 20 employees): 1/3 seats + 1/employee Restaurant wlo Bar (100 seats & 10 employees): 1/4 seats + 1/employee Specialty Food wlo Seats (10 ksf): 4 stalls per 1,000 sJ. Specialty Food wi Seats (120 seats): 1 stall per 3 seats 5 15-35(, Gary Chao From: Sent: To: Subject: Kiersa Wilt on behalf of City of Cupertino Planning Dept. Thursday, January 26, 2006 9:33 AM Gary Chao FW: Toll Brothers Project I will print this for the PC tonight. -----Original Message----- From: Carl Buck [mailto:cbuck@aehr.com] Sent: Thursday, January 26, 2006 9:26 AM To: 19iefer@sbcglobal.net; mmiller@interorealestate.coffi¡ Taghi Saadati; gwong212@aol.com; City of Cupertino Planning Dept. Subject: FW: Toll Brothers Project Members of the Planning Commission, I would like to give you my inputs on understand is being reviewed tonight. attend the meeting. the Toll Brothers project, which I Unfortunately, I will not be able to I live on S. Tantau Ave., about 1/4 mile from the corner of the project at Tantau and Stevens Creek Blvd. I have 2 inputs: 1. I recommend that the park be at the corner of Tantau and stevens Creek Blvd., not in the middle of the block: a. It will soften the approaching view, which, given the size of the buildings proposed for the corner, reminds me of the imposing structure of Santana Row as seen from Winchester Blvd. (please forgive me for potentially overstating this, but the point remains). b. I (and probably other residents of Loree Estates and Rancho Rinconada) would use the park at the corner, but would be unlikely to walk past condos and a shopping center to use the one proposed in the middle of the block. I think it is important for this park and development as a whole to benefit existing residents, not just new ones. 2. I would like you to consider closing Tantau to Northbound through traffic at Stevens Creek Blvd. It is already closed to Southbound through traffic. Tantau is already too busy, and all the developments at Vallco will only make this worse. Alternatively, it could be completely closed at either Loree or Tilson. Closing it at Tilson would also probably help control traffic at Sedgwick elementary school near there. Otherwise, ·it looks like a reasonable proj ect to me. Thanks for accepting my inputs! Carl Carl Buck 10320 S. Tantau ~ve. Cupertino, CA 408-255-4550 1 JS~357 rage 1 or L. Gary Chao From: Jennifer Griffin [grenna5000@yahoo.com] Sent: Tuesday, December 13, 2005 9:59 AM To: Gary Chao; City of Cupertino Planning Dept. Cc: grenna5000@yahoo.com Subject: Preservation of Large Trees on HPlTolI Brothers Property Dear Gary and Planning Department: I understand the Environmental Review Committee will be looking at the HP/Toll Brothers project on Wednesday, December 14, 2005. I plan to attend this meeting. There are three large trees on the HP/Toll Brothers property that should be preserved. I have mentioned this to several of the Toll Brothers representatives and at the second HPfIoll Brothers neighborhood meeting in November, 2005 at Cupertino High School. 1. The Valley Oak at the comer of Finch Avenue and Stevens Creek Boulevard. This tree is probably three feet in diameter and is probably 150 years old. It is a noted landmark in the area and has been known to many generations of Cupertino residents as the Haloween Tree. The tree had new spring growth in the Spring of2005, but that foliage turned brown immediately after the proprty was sprayed by truck for tumble weeds in Spring, 2005. Several other trees on the property turned brown and died immediately after the spraying also. A large walnut tree on the property turned brown and split down the middle after the spraying. It would be very wonderful if another Valley Oak could be planted near to the location of the current Valley Oak, perhaps at the new park on the other side of Finch Avenue. The new Valley Oak could be preserved as a legacy to the residents ofthis area of Cupertino and to the students of Cupertino High School. 2. The Atlas Pine on Stevens Creek Boulevard This is a very large speciment pine tree located on Stevens Creek Boulevard, halfway between Finch Avenue and Tantau Avenue. This tree was planted next to the driveway of the farmhouse and farm that were on the property when the land was an orchard. There are several large palm trees located there, too, so the original farm might have been owned by farmers ofItalian or Portuguese ancestry. It is hoped this healthy tree can be preserved. It is a recognizable landmark for the residents of this end of Cupertino. 3, Large Beech Tree at intersection of Vall co Parkway and Tantau Avenue This tree is very large and it is located in front of one of the former Tandem Executive Office Buildings. It is probaly three feet in diameter. I believe the tree was left in its current location when the office building was constructed because the tree lends a very majestic presence to the location. 15 - 35 ¡ 12/13/05 ra1:;¡;:;,L. Vi ¿. It is hoped this tree can be preserved because it is a beautiful example of a creek tree, native to the area and adjacent to Calabazas Creek. It is probaly 150 years old or older. It is hoped all three of these trees can be preserved on the property when the new building starts by Toll Brothers. If the Valley Oak is deceased, then it would be wonderful gesture to the community of Cupertino to have a young Valley Oak planted near the site ofthe original heritage Valley Oak Tree. Thank you very much. Sincerely, Jennifer Griffin grenDi!5_Q'!J.Q@YJ1hQQ,cQm (408) 725-1676 12/13/05 IS - 351 J:.age I or I Gary Chao From: Jennifer Griffin [grenna5000@yahoo.com] Sent: Tuesday, December 13, 2005 10:14 AM To: Gary Chao: City of Cupertino Planning Dept. Cc: grenna5000@yahoo.com Subject: Senior Housing Projecl al HPrroll Brolhers project Dear Gary and Planning Department: I understand HPffoll Brothers might have a senior housing component along Tantau Avenue where the former Tech building stands. This would be a good idea because it would provide housing for Cupertino seniors who need affordable housing, and would keep the impact to Cupertino High School down because the senior project would probably not have high school age children. I do have one concern. Ifthe senior housing project is going to be a HUD Federal project, the final residents of the housing project might not be Cupertino Seniors. If a city accepts HUD funding for a housing project such as this, the City cannot dictate what seniors will live there. The seniors from other cities can come live in the project, too. Cupertino Seniors would not get first priority to live in the complex. If the intent of Cupertino is to provide housing for deserving Cupertino Seniors, the HUD route might not be one the City would want to follow. Another city in the area accepted HUD money to build affordable housing for its seniors. Many ofthe seniors in the city were looking forward to being able to live in the complex. Now, seniors from other cities are living in the complex when seniors from the orginal city cannot live there. The city accepted HUD money so they could not decide who lived in the senior complex. Seniors in the city are very upset about the outcome. HUD housing may be wonderful for certain areas, but maybe the senior housing component at HP/Toll Brothers might do well to be under the jurisdiction of the Cupertino Community Services in this càse if the intent ofthe project is to serve Cupertino Seniors. Thank you very much. Sincerely, Jennifer Griffin grenna5000@yahoo.com (408) 725-1676 )5 - 3M) 12/14/05 rag~ L. U1 L. To: Gary Chao; City of Cupertino Planning Dept. Cc: grenna5000@yahoo.com Subject: Senior Housing Project at HP/TolI Brothers project Dear Gary and Planning Department: I understand HPrroll Brothers might have a senior housing component along Tautau Avenue where the fonner Tech building stands. This would be a good idea because it would provide housing for Cupertino seniors who need affordable housing, and would keep the impact to Cupertino High School down because the senior project would probably not have high school age children. I do have one concern. If the senior housing project is going to be a !IUD Federal project, the final residents of the housing project might not be Cupertino Seniors. If a city accepts HUD funding for a housing project such as this, the City cannot dictate what seniors will live there. The seniors from other cities can come live in the project, too. Cupertino Seniors would not get first priority to live in the complex. If the intent of Cupertino is to provide housing for deserving Cupertino Seniors, the HUD route might not be one the City would want to follow. Another city in the area accepted HUD money to build affordable housing for its seniors. Many of the seniors in the city were looking forward to being able to live in the complex. Now. seniors from other cities are living in the complex when seniors from the orginal city cannot live there. The city accepted HUD money so they could not decide who lived in the senior complex. Seniors in the city are very upset about the outcome. HUD housing may be wonderful for certain areas, but maybe the senior housing component at HPrroll Brothers might do well to be under the jurisdiction of the Cupertino Community Services in this case if the intent of the project is to serve Cupertino Seniors. Thank you very much. Sincerely, Jennifer Griffin grenna~º.ºOi(ì;vªhºº&ºm (408) 725-1676 12/14/05 IS - 3lPI "'CElVED JAN 1 2 2006 BY: . To: The Cupertino Pla.nning Commission Fmm: Al De Ridder 19146 Atme Lane Cupertino, Ca. 9501<1 i- i ¿ - 0 c::;, Dear Commission Members I was alam.ed by part of the pmpùsal hy Toll Bmtl;"rs tÙr the development. of tlk Vtll1co prüpc.r1y. l\1mneiy the t:linllUi.ltioll oî tn¡jììt.~ bJlf.:~' 011 .Fiuch ~'\\'t:, aud \raHt::u Park\vay. I would 1ike to bring to y(~ur aUention ~onle uf ihr: .i~,.;l1u\'viLlg dec..~~ic'l1"; \vhich \\/C!f:: made by previous city and county plmmcrs which we ,;11U ,,,'c Ih" n::.mlls ,)1" (od"y. 1. NLulY years ago Stevens Creek U IveL \Va:1 not a houJevard hut ;1 single h\'c~ ¡¡me mad with It. streetcar track al\Jug "ide of it. When tllè s1reet'2ar tracks ,vel''' taken out about 50 years ago, the decision was made to keep the right of way for creating a boulevard because of their vision of a developing area and th~ need for a good thm fair to handle Ûu; traffic. 2. Similarly, back in 1960, when we llrst. moved out here, Lawrence St.ation Road was " two lane through the counl1y. 111e cIty and county planners at ¡hat time had the vi.ion and wisdom to c",ate a ,vidr, right ühvay for ~ fnhlfe expressway. 3. 111er. later whcn thc Valleo property wasbeillg phmned for devdoµment, the pbnners at tlmt time could visualize a large illcr,:ase inlhe traffic, so 1 hey plarmed t.û millce Tantau Ave. a tour hme street with an overpass over 280, even before 280 was there. 4. Similady, Ihe p]IUUlers decided 1.0 make Fillcl1 AVe. and Vallco P;ukway t\mJ lane streets because they had the vision to fbrcsce the traHic requirements aii ille property would be developed. The way I see it we \\'uu1d he n~jec1 Lng tbe decisiül1s of previous .~ity and connty planners if we allow this development to take away our ,¡treel lanes when .~l the sam" time t]lere will be a tremendous incœa~e in thè auto ir:1ftic. Se¡:ondly, there will he a need Il)r trucktrafiic to .,;crvc ¡he ldailoülleh as wdl '" the need for moving vans for the residents. If we rt;"tÜd H,t: no" .)fira!ìïc byelillJ.Îllaiillg . tr'aflic laue" we would lorcvcr be 'JOt1y we did It. !)Iease take these very real C.HlC¡;U w into <';'JIiÛdemtioli when you He;; and heaï ihe Toll Brothers presentation and request tl)!" approval of their proposal. Thmlk You Al De Ridder ~O~()\~ I? - 3(Q2. H.E(~EIVE~D eCT :3 1 Z005 To: Cupertino Planning Commission I am the owner ofthe property at 10291 Norwich Avenue. I object to the constmction of CON D c) .M 1/11/ <...J ¡1.Æ S:: ð rv' 5 r çJ(le. 75 L V D. 0 r í(, L L 13 ~ T tf1;I?!' for the following reasons: I. This a large increase of high density housing to the area causing increased traffic and burden on the schools for which Cupertino is known. This project will likely decrease the property values of existing single family homes nearby where a major allure is spaciousness and tranquility. It will also likely decrease the strength of the Cuperinto school district by dramatically increasing the number of attending children. Weakening of the renowned Cupertino schools will likely decrease property values of existing homes. 2. This large construction is going to impose on the privacy of existing single family homes near Vallco. The tall buildings of the high density house will look over the existing homes, causing loss of privacy and feel oftranquility. This will decrease property values. 3. Removal of any existing barrier such as sound walls and service streets and trees will impact the privacy and tranquility of properties now protected by these barriers, resulting in decrease desirability for the existing homes. 4. If the project is approved, I will be forced to sell my property. I demand compensation for any loss in value of the property as well as the trouble and expenses of replacing this property with another one, including the increase in assessed property tax which occurs when exchanging properties. 1'5 _~2- Gary Chao From: Sent: To: Subject: Kiersa Witt on behalf of City of Cupertino Planning Depi. Friday, January 06, 20064:41 PM Gary Chao FW: development in South Vallco Planning Area -----Original Message----- From: Stephanie Schaaf [mailto:sas@alumni.brown.edu] Sent: Friday, January 06, 2006 3:33 PM To: angela.chen@sanjoseca.gov¡ 19iefer@sbcglobal.net¡ mmiller@interorealestate.com; Taghi Saadati; gwong212@aol.com Cc: City of Cupertino Planning Dept. Subject: development in South Valleo Planning Area Dear Chair Wong and Planning Commissoners: The Sierra Club recently learned that the council is considering development near Valleo Shopping Center. While we have not taken a position at this time regarding specific development proposals for this site, the area appears to present an ideal opportunity to plan for smart re-use of underused land in our urban core. As you are aware, land-use decisions have a tremendous impact on community and environmental quality. Infill development, preferably mixed-use with residential serving commercial, provides an essential strategy for reducing sprawl and creating rich pedestrian-friendly communities. The jobs/housing imbalance throughout the peninsula generates tremendous pressure for poor development in distant areas such as Morgan Hill and Dublin. This in turn generates automobile traffic with its concurrent air and water quality degradation. These pressures create a vicious circle with increased pressure for automobile infrastructure. By one recent study, fifty percent of the land in San Jose is allocated to automobiles in roads and parking. Furthermore, recent EPA studies have shown that good infill can reduce traffic by putting housing near jobs. We urge the Commission to encourage uses for this site which will help alleviate Cupertino's jobs/housing imbalance and create a mixed-use, pedestrian-friendly neighborhood. sincerely, Stephanie Schaaf vice-Chair, Sustainable Land Use Committee Sierra Club, Lorna Prieta Chapter 1 J S -3(P3 BI INITIAL STUDY FOR THE: Toll Brothers/ Calabazas Place Project ~.. I I , r ! I I I· I I· V olume I of II - Initial Study Text Cupertino, California December 2005 Table of Contents Pal!e VOLUME I OF II - INITIAL STUDY TEXT I. INTRODUCTI ON AN D PURPOSE ....... .... ................................. ....................4 II. PROJECT INFORMATION ............................................................................6 A. PROJECT TITLE...... ............... ............ .......... ... ....... ............................ 6 B. PROJECT LOCATION .......................................................................6 C. LEAD AGENCY CONTACT .............................................................6 D. PROPERTY OWNER/PROJECT PROPONENT ...............................6 E. ASSESSOR'S PARCEL NUMBERS..................................................6 F. ZONING DISTRICT AND GENERAL PLAN DESIGNATION.......6 III. PROJECT DESCRJPTlON ............................................................................10 A. OVERVIEW ......................................................................................1 0 B. PROJECT COMPONENTS...............................................................10 C. ACCESS TO THE PROJECT SITE ..................................................27 IV. ENVIRONMENTAL SETTING AND CHECKLIST ...................................28 A. AESTHETICS.......... ...... ...................... ............... ...... ..... .................... 28 B. AGRICULTURAL RESOURCES ....................................................37 C. AIR QUA LITY ...... ............ ................... ........ .... ..... ............................ 3 8 D. BIOLOGICAL RESOURCES ...........................................................47 E. CULTURAL RESOURCES ..............................................................61 F. GEO LOG Y AND SO I LS ..... .................... ...... ... ............................. .... 64 G. HAZARDS AND HAZARDOUS MATERIALS..............................69 H. HYDROLOGY AND WATER QUALITy....................................... 76 I. LAND USE.... ............. ....... ..................... ........................................... 86 J. MINERAL RESOURCES .................................................................93 K. NOISE ..... ............ ....... ............... .............. ............................ ... ............ 94 L. POPULATION AND HOUSING ....................................................103 M. PUBLIC SERViCES........................................................................105 N. RECREATION ................................................................................111 O. TRANSPORTATION ......................................................................113 P. UTILITIES AND SERVICE SYSTEMS ........................................142 Q. MANDA TOR Y FINDINGS OF SIGNIFICANCE.......................... 146 V. REFERENC ES ......... ... ...................... ........... ........... ................... .................. 148 VI. AUTHOR AND CONSULTANTS ..............................................................150 City of Cupertino Toll BrotherslCalabazas Place Project Initial Study Decemher 2005 Table of Contents Photos 1-8 Figure I Figure 2 Figure 3 Figure 4 Figure 5 Figure 6 Figure 7 Figure 8 Figure 9 Figure 10 Figure 11 Figure 12 Figure 13 Figure 14 Figure 15 Figure 16 Figure 17 Figure 18 Figure 19 Figure 20 Figure 21 Figure 22 Figure 23 Figure 24 Pal!e Photos Views of the project site.................................................. ...... ... ....30 Figu res Regional Map........ ................ ...... ........... ....... ..... ....... .............. ................... ...... 7 Vicinity Map..... .... ................. ...... ... ...... ........ ..... ..................... ................ .......... 8 Aerial Photograph and Surrounding Land Uses ............................................... 9 Project Site Portions and Areas ......................................................................11 Conceptual Site Plan..... .................................... ........ ......... .............. ... ............12 Conceptual Site Plan for Area I .....................................................................13 Conceptual Cross-Section of Area I and Private Park - Senior Option A .....16 Conceptual Cross-Section of Area I and Private Park - Condo Option B .....17 Conceptual Cross-Section of Proposed Residential Building Located in Areas 2 through 5 .........................................................................18 Conceptual Cross-Section of Area 6...............................................................20 Conceptual Cross-Section of Area 7...............................................................21 Conceptual Cross-Section of Proposed Commercial Area .............................22 Conceptual Cross-Section of Proposed Commercial Area.............................23 Conceptual Cross-Section of Proposed Commercial Area.............................24 Pedestrian Path ways....................................................................................... 4 3 Locations of Trees On-S ite ..... ........ ......... .... ........ ........ ................. .................. 52 Proposed Storm Water Control Plan - Senior Option A.................................84 Proposed Storm Water Control Plan - Condo Option B ................................85 Noise Measurement Locations .. ........... ...... .... ..................... ... ........................97 Existing Neighborhood Parks........ ..... ...... ....... .... .... .......... ............... ............107 Existing Roadway Network and Study Intersections ...................................114 Existing Bicycle Routes................................................................................116 Transit Routes..... .......... ................. ......................... ....... ...............................117 Project Trip Distribution............... .... ............................ ................................ 128 2 Initial Study December 2005 City of Cupertino Toll BrotherslCalabazas Place Project Table of Contents Table I Table 2 Table 3 Table 4 Table 5 Table 6 Table 7 Table 8 Table 9 Table 10 Table II Table 12 Table 13 Table 14 Table 15 Table 16 Table 17 Table 18 Table 19 Pal!e Tables Summary of Proposed Housing Types Senior Option A and Condo Option B ............................................................14 City of Cupertino Minimum Parking Requirements and Proposed Parking ..25 CAP Transportation Control Measures To Be Implemented By Cities .........41 Predicted Worst Case Carbon Monoxide Concentrations Resulting from 1-280 Traffic in 20 I 0* ...........................................................45 Criteria for Specimen Trees. ......... ......... ......... ....... ... .................................. .... 50 Summary of Tree Species Located On-Site*.................................................51 Summary of Specimen Trees On-Site ............................................................53 Land Uses and Acceptable Noise Levels........................................................95 Examples of Acceptable Brief Daytime Incidents..........................................96 Signalized Intersection Level of Service Definitions Using Average Control Vehicular Delay...................................................... I 19 Unsignalized Intersection Level of Service Definitions Using Average Control Delay ......................................................................120 Existing and Background Intersection Levels of Service .............................121 Condo Option B Trip Generation Rates and Estimates ................................127 Background and Project Intersection Levels of Service............................... 130 Freeway Segment Analysis......... ...... ............ .... ................. ................. .......... 132 Anticipated Parking Demand for Active Park Uses Weekend Days............135 Summary of Parking Demand and Supply Commercial and Park Uses....... 135 Background and Cumulative Intersection Levels of Service........................ 138 Cumulative and Cumulative No Project Intersection Levels of Service ......140 VOLUME II OF II - TECHNICAL APPENDICES Appendix A Appendix B Appendix C Appendix D Appendix E Appendix F Appendix G Appendix H Appendix I Appendix J Air Quality Analysis Biotic Survey Tree Survey and Tree Survey Addendum Cultural Resources Report Geotechnical Analysis Environmental Site Assessment Storm Drain and Sanitary Sewer Capacity Study Noise Analysis School Fiscal and Enrollment Impact Analysis Transportation Analysis City of Cupertino Toll BrotherslCalabazas Place Project 3 Initial Study December 2005 I. INTRODUCTION AND PURPOSE This Initial Study of environmental impacts has been prepared to conform to the requirements of the California Environmental Quality Act (CEQA), the CEQA Guidelines (California Code of Regulations 15000 et. seq.) and the regulations and policies of the City of Cupertino. The City of Cupertino is the Lead Agency under CEQA and has prepared this Initial Study to address the impacts of implementing the proposed Toll Brothers/Calabazas Place project on a 25.4 acre site north of Stevens Creek Boulevard and west of Tantau Avenue. The proposed project would rezone the site to allow new residential, commercial, and public park uses. The proposed rezoning would allow for the demolition of a 150,000 square foot industrial office building and the construction of either of the two options listed below: Senior Option A - 402 residential units (80 senior rental apartments, 72 townhouses, and 248 condominiums), 100,000 to 120,000 square feet of retail uses, a 3.5-acre public park, and parking. Condo Option B - 369 residential units (72 townhouses and 297 condominiums), 100,000 to 120,000 square feet of retail uses, a 3.5-acre public park, and parking. The primary difference between the two options are the type and number of dwelling units proposed on the northern two acres of the 25.4-acre project site. Tiering of the Environmental Review CEQA Section 21 093 (b) states that environmental impact reports shall be tiered whenever feasible, as determined by the lead agency. "Tiering" refers to using the analysis of general matters contained in a broader Environmental Impact Report (EIR) (such as one prepared for a general plan or policy statement) in subsequent EIRs or Initial Studies/negative declarations on narrower projects; and concentrating the later environmental review on the issues specific to the later project [CEQA Guidelines 15152 (a»). Tiering is appropriate when it helps a public agency to focus on issues at each level of environmental review and to avoid or eliminate duplicative analysis of environmental effects examined in previous environmental impact reports [CEQA Guideline 21093 (a»). In accordance with CEQA Sections 21 093(a) and 21 093(b) and CEQA Guidelines Section 15152(a), this Initial Study tiers off the City of Cupertino General Plan Final EIR (State Clearinghouse #2002122061) certified by the City Council on November 15,2005. The land use designations on the 25.4-acre project site were changed from Planned Industrial and Office/Industrial Commercial/ Residential to Commercial/Office/Residential as a part of the City of Cupertino General Plan Update in November 2005. In addition, the amount of residential and commercial development allowed within the Vallco South subarea of the City (which includes the project site) was changed and analyzed in the City's General Plan Final City of Cupertino Toll BrotherslCalahazas Place Project 4 Initial Study December 2005 EIR. In several areas, such as air quality, land use, and population and housing, this Initial Study tiers off the analysis of planned growth and development in the 2005 City of Cupertino General Plan Final EIR. This Initial Study evaluates the project specific environmental impacts that were not addressed in the General Plan Final EIR and those that might reasonably be anticipated to result from the rezoning of the 25.4-acre site for a residential and commercial project with a public park component. City of Cupertino Toll BrotherslCalabazas Place Project 5 Initial Study December 2005 II. PROJECT INFORMATION A. PROJECT TITLE Toll Brothers/Calabazas Place Project B. PROJECT LOCATION The 25.4-acre project site is located in the City of Cupertino. The project site is bounded by Stevens Creek Boulevard to the south, Interstate 280 (1-280) to the north, and Tantau A venue to the east. Vallco Parkway separates the site into northern and southern areas. Regional and vicinity maps of the site are shown on Figures 1 and 2, respectively. An aerial photograph showing surrounding land uses is shown on Figure 3. C. LEAD AGENCY CONTACT City of Cupertino Community Development Department Gary Chao, Project Manager 10300 Torre A venue Cupertino, CA 95014-3232 (408) 777-3308 D. PROPERTY OWNER/PROJECT PROPONENT Toll Brothers, Inc. Kelly Snider, Project Manager 2560 North First Street, Suite 102 San José, CA 95131 (408) 894-0640 E. ASSESSOR'S PARCEL NUMBERS 316-20-074,316-20-078,316-20-079, and 316-20-085 F. ZONING DISTRICT AND GENERAL PLAN DESIGNATION Zoning District: Planned Industrial, Mixed Use Planned Development (General Commercial, Office, Light Industrial, Hotel) General Plan Designation: C ommerc ia I/Office/Res identia I City of Cupertino Toll BrotherslCalahazas Place Project 6 Initial Study December 2005 ~ OJ o (,) ~ (,) z ~ u.. Z 0( (/) .- w a: :::J 19 1..1... ~ ~ w "' w ~ ;õ " ,," ~ o ~ ~ o ~ m <{ t9 o I- <{ ~ <{ (f) W I- ¡j) ~] I- 0... (,) « <lll(Z w ~ ., 0 -..! (f) 0:: « 0 0.. Z I-(f) ic 0 --' --' <{o:' 19 (f)I W 0 --' a: W ::J Z W ~ LAWRENCE EXPRESSWAY N W Cé ::J 19 l.1... I.U (:J CJ -è'i I.U < ::J f{ o > -' CD '3NI 31\10S11lH N\fèfèf3H 'Ill 113MOl w > 12 o w ~ ct: o ><:: U o U Z -0: '~o O~\1MOH I '3^\f NèH1S '3^V 13èf8 '3^V AOnr ){33&Q '3^V H:)NI;J 3nN3^V 3;J1OM ""Z '" CL :ö « " ::2: c :J '" '3^V H:)IMèfON ci 0 >- 0ì èf313VlJlèf3d '" 0 0 " l- t> .¡j f- '" " Z (f) <5' cr: it ~ <-) w m~ I > ;;; -0: 3nN3^V 1\1 lèfOd 8 M W 0:: :::> 19 LL :r: 0... « 0:: 19 ..;( Z 0 » f- :ü N 0 0 " 0 :r: c: N ::> '" 0... 0 M 0> C1J M ::> .-J U +, «: « '" " Qj .0' Q: ro 0:: 0 w I Qj 0 « ro Õ I u .c: (j) "- 9 III. PROJECT DESCRIPTION A. OVERVIEW The land use designations on the 25.4-acre project site in the City of Cupertino General Plan were recently changed from Planned Industrial and Office/Industrial Commercial! Residential to Commercial/Office/Residential as a part of the City of Cupertino General Plan Update in November 2005, The project site is divided by Vallco Parkway (refer to Figure 3). The northern portion of the project site is currently zoned Planned Industrial Zone. The southern portion of the project site is zoned Mixed-Use Planned Development, including General Commercial, Office, Light Industrial, and Hotel (refer to Figure 4), The project proposes to rezone the project site to Commercial/Residential and PR-Public Park and develop residential units, ] 00,000 - 120,000 square feet of retail uses, a 3.5-acre public park, and parking, Each component of the proposed project is described in more detail below. B. PROJECT COMPONENTS I. Residential Development Overview An overview of two residential development options, Senior Option A and Condo Option B, for the proposed project is described below. The differences between the two options are the type and number of dwelling units proposed in Area I of the project site (refer to Figures 5 and 6). One of the two options will be selected for development, as determined by approval of a conditional use permit. Senior Option A Senior Option A proposes up to 402 residential units, including senior rental apartments, townhouses, and flats (refer to Figure 5 and 6). The overall density of this option would be approximately 23,5 dwelling units per acre (du/ac).1 The residential development in under this option, for each of the residential areas, would range in density from 25,7 to 37 du/ac. The size of the dwelling units would range from one to three bedrooms (600 to 2,150 square feet in size). Twenty percent of the senior rental apartments would be affordable units. A summary of the types of housing proposed under this option is provided in Table 1. I Overall residential density (approximately 23.5 du/ac) ~ total number o[residential units (402) I total site acreage proposed for residential development (17.1 gross acres) ---- City of Cupertino Toll BrotherslCalahazas Place Project 10 Initial Study December 2005 \~\ :IIII\I~ :¡! j \1 1h l_ _.", ;'IJ~ 11 11~li ~ ¡í :' _1- :11 'II j'l L~.~' 1 1,1, '. I 111- 1___ 1'1 i ~ I, u c ~ u I' ' r.1' 'f' :,1' \i i 1--=---- II ~ r " I II I!~ ~ ~) L JU 0 UC / ' , ~.o ----------- ----3 n N3AV- nV:J.:NV.1_ --------u L = ;-~~,ì ;;;¡::z jlr ~ ~ ~ ; ~ Be' <3 ..J ~ >. 0::: 0.. x ~ roo odS db -0 c c"'D § 0 ..g c u-, 0":: 0 6 N ~ &. 0.. 0, N ~..c ..c (¡) II '2'E~-g~ 0... Z (j)::I ~ '" : IillJill_1 bj ) -.1 i i ~ ~~[r'l ~_O) II " , 11 ,- F, Ilg I ~F-- ~~- j(- I I f I~~I! III Ld' ~~]~ I J~ G I w G~-- -- 01- (/) I--~-- ~ "<t l.LJ a:: :::> 19 l.J.. (/) « l.LJ a:: « o z « (/) z o I- a:: o 0... l.LJ l- (/) I- U l.LJ --, o a:: 0... ~ -J l IU 0 UI' ':¡nN3A'It n'lt I N'It I ./' U \.- /dO L[) W cr :::J <..9 l.L. ..... .. ! « 01 ~ I 0_ ~- - ~ f I~~U z =~Z « ~ --.J 0... ¡ ~ w 0; 0 f- .;e u (f) ::> oJ U oJ ;>, x ~ ~ --.J ~ 0 J1 « '" u :::J c: u ::> c: in f- 0 ::> '" 0 N 0... 5> N 1:5 II W ( ) 0; U B u ~ " èi: c: i'! Z :::> '" 0 I I u (/) " ^ " U I 12 r .- « L.U ~ « ~ a LL z « ....J « CL L.U Z I- a (/) I- ....J CL « a :J ~ I- a CL L.U r... Z U w z (f) a u 13 ~ ~"Y: ø «~ ~ 4f~' o ~r;v / o ". ø ¡ ~ / .' (!) L.U ~ :J <.9 LL (C z a I- CL a a o z a ü Table I Summary of Proposed Housing Types Senior Ootion A and Condo Ootion B Option Unit Building/ Senior Condo Unit Description Size Unit Type (Square Option A Option B Feet) Senior 80 units -- Stacked flats, three to 600-800 Rental four stories up to 40 feet Apartments tall Two-Story 72 72 Townhouse and flats over 1,300- Townhouses townhouses townhouses underground garage. 1,600 over Flats 36 flats 36 flats Each building three stories, up to 45 feet tall Stacked 212 units 261 units Stacked flats on a podium 1,100- Flats with underground 2,150 parking, Each building four stories, up to 45 feet tall. Total 402 369 --- --- Condo Option B Condo Option B proposes up to 369 residential units, including townhouses and flats (refer to Figure 5 and 6). The overall density of the project site would be approximately 21.6 dwelling units per acre (du/ac),' Under this option, the density for the residential areas range from 15,8 to 35.9 du/ac. The dwelling units would range from one to three bedrooms (I, I 00 to 2,150 square feet in size). In accordance with City standards, 15 percent of the units would be affordable units. A summary of the types of housing proposed under this option is provided in Table I. Residential Areas The project site is divided into seven residential areas, as shown in Figure 4. The proposed residential development in each area is described below. Area 1 Two development options, Senior Option A and Condo Option B, are under consideration in Area I. The difference between these two options is the housing type and number of units proposed in Area I of the project site (refer to Figures 5 and 6). Selection of the one option to be developed on the site will be determined by approval of a Conditional Use Permit. Each option is discussed in more detail below. 2 Overall residential density (approximately 21.6 dulac) ~ total number of residential units (369 units) I total site acreage proposed for residential development (17,1 gross acres), City of Cupertino Toll BrotherslCalabazas Place Project 14 Initial Study December 2005 Senior Option A - Senior Rental Apartments Senior Option A includes a 80-unit senior apartment building that would be located in Area I, just south of 1-280 and west of Tantau Avenue (refer to Figure 6). The building would be three to four stories tall, with a maximum building height of 40 feet. The senior apartments would consist of flats stacked on top of onc another and built at grade (refer to Figure 7). Residential units would be situated around a central courtyard (refer to Figure 6), Twenty percent of the senior apartments would be available at below market rate, Parking would be provided in a surface lot adjacent to the units (refer to Figure 6), Condo Option B - Multiple-Family Housing (Flats) Condo Option B includes 48 flats that would be located in Area I,just south of 1-280 and west ofTantau Avenue (refer to Figure 6), The 48 unit building would be four stories tall, with a maximum building height of 45 feet. The flats would be stacked on top of one another in one building above one level of below grade parking (refer to Figure 8), The 48 flats would be situated around a courtyard. The residential units in Area I would be located adjacent to a 0.60 private park and recreational center (refer to Figure 5), Areas 2 through 5 - Multiple-Family Housing (Townhouses Over Flats) In Areas 2 through 5, the project proposes 108 units of multiple-family housing in four, three-story buildings (refer to Figure 4), Each three-story building would be a maximum of 35 feet in height and would be composed of two-story townhouses on top of flats (refer to Figure 5 and 9). Buildings would contain 24 to 30 units. Parking for the townhouses and flats would be provided in a one-level, underground parking garage, with 2.3 spaces provided per residential unit. The residential units in Areas I through 5 would be situated around a 0.60 acre private park and recreational center (refer to Figure 5). City of Cupertino Toll BrotherslCalabazas Place Project 15 Initial Study December 2005 0 20' 50' 100' - - FIGURE 7 16 SENIOR OPTION A AND PRIVATE PARK 1 CONCEPTUAL CROSS-SECTION VIEWS OF AREA .e.',~.~\. ø.t-f,~!.>;... ~1'fT {~ ~~lf~~ 10' = 10' = 10' = 10' 12' 0' 0' 0' 0' ø 24'.:s" 11'-5.5"10' 24'-4.5~ 10'-2.5' 22'·1 FIGURE 8 - CONDO OPTION B AND PRIVATE PARK 1 CONCEPTUAL CROSS-SECTION VIEWS OF AREA .JJ-Ii< ..-" m ¡ W cx :J <.9 u... ~ /I) -- .,...,. 'I " :: . , .. " ,'"" q. /fllmL-JlII rill 'If !J I '1 II .. -...--....... I I L \ \ \' \1 \J ~ , ~ ~~ \~ ~. ~ \\\rF,",' ~i'~.',1 ' Ilii ····1 I': I ." III1 ~ ifVC-=11li ~ -. - L{) I <.9 :J o CX I l- N (/) « W CX « z o W I- « U o -! u...<.9 OZ zO O::::! -:J 1-00 U-! W« (/)- 'I- (/)Z (/)W 00 CX- U(/) -!W «CX :JO I-W o...(/) WO Uo... ZO Ocx Uo... ., , - f , - ~ " , .. , .----- i1l ~O.,· +I ()) r....: II 0 ....... ,... ~ I::: 10 ~,., I- - ,.....-- - 11 ~ 18 Areas 6 and 7 - Multiple-Family Housing (Flats) The project proposes the construction of213 flats between Vallco Parkway and Stevens Creek Boulevard, in Areas 6 and 7. Of the 213 flats, 95 flats would be located in Area 6, which is west of Finch A venue (refer to Figure 4). The flats in Area 6 would be stacked on top of one another in one building, above one level of below-grade parking (refer to Figure 10). The 95-unit building would be four stories tall with a maximum building height of 45 feet. The flats would be clustered around two courtyards (refer to Figure 5). The remaining 118 flats would be located in Area 7, east of Finch Avenue, just west of Tantau Avenue (refer to Figure 4). The flats in Area 7 would also be stacked on top of one another in one building above one level of below grade parking (refer to Figure 11). The 118-unit building would be four stories tall with a maximum building height of 45 feet. The flats in Area 7 would be situated around one central courtyard (refer to Figure 5). 2. Commercial/Retaíl Development The project proposes 100,000 to 120,000 square feet of commercial uses on 8.3 acres of the project site (refer to Figure 4). The commercial/retail buildings would face Stevens Creek Boulevard and Finch A venue, and be situated around a surface parking lot (refer to Figures 5 and 12-14), 3. Public Park The project includes rezoning 3,5 acres of the site west of Finch Avenue as PR- Public Park (refer to Figures 4 and 5), At minimum, the project proposes to dedicate parkland in accordance with the City's Parkland Dedication requirements (Municipal Code Section 18.24), The design of future park facilities within the 3.5 acres of the site has not been prepared. At this time, the City anticipates that the approximately 2.8 acre square shaped area along Stevens Creek Boulevard could be an active use park with playing fields for soccer, cricket, volleyball, softball or frisbee, The location of playing fields, any parking for park uses, lighting, landscaping, and other features are not known at this time, The City anticipates that the approximately 0,7 acre triangular shaped area along the west side of Finch A venue could be a passive park with open grass areas, a tot lot, and picnic tables. Environmental review of specific park improvements will be required at the time they are proposed. 4. Private Park and Recreational Center The proposed project includes a 0.60 acre private park in the northern portion of the project site to serve Areas I through 5. The project also proposes a private recreational center adjacent to the private park that consists of two buildings and a pool (refer to Figure 5 and 6), In addition, the proposed project includes a O,7-acre private park adjacent to Finch Avenue to serve Area 6 (refer to Figure 5). City of Cupertino Toll BrotherslCalahazas Place Project 19 Initial Study December 2005 ~.. .o'þ. ~..' ..... .0'" i-.:i.-, «".;:r ~" ~.. ~.' "",. .0-" n____________ ,~'W\ !: -,-,,~ I;f~ 7.-' 20 o ,- w 0:: :::> <.9 1..1... to « w 0:: « 1..1... o Z o f- U w (/) , (/) (/) o 0:: U -.J « :::> f- 0... w U Z o U , r-~ ~ " VALlCQ PARKWAY "0.' ¡ ¡ ~ ¡ \ D2 D2 D2 ,,,-,.,- D2A ~ ¡ , " ¡ , CI CI CI ~ STEVENS cREEK BLVD AND^:FAlllTA\J , -~ , " , , """Hr'" ....,.-----\ -- ~ )" -/f 1 VIEW i ~ i ~ i ,~\. ~.'f~~'.. A'~:~; '''~~ 'õ'I··çt~ ",,,"'v "":!.V:i\1.,' ~-If: TAlllTAU AVE, ~~ ~ EAST TERRACE BOOKSTORE 6-1 I _!".,..,...~,.-;;;:-::::,''''':;'==-' -·;;;-'"V·', - -- ~' 8' '" - - - FIGURE 11 - 2] VIEW2 CONCEPTUAL CROSS-SECTION OF AREA 7 ~co "', PROPOSED RESIDENTIAL f '- 800 S MAJOR 3 16,000 SF i ..--.J RETAil 2,825 SF PUBLIC PARK ,~ ,~ 12 FIGURE STEVENS CREEK BLVD. NOTE: Cross·section views are provided on Figures 13 and 14. CONCEPTUAL CROSS SECTION VIEWS OF PROPOSED COMMERCIAL/RETAil AREA VIEW 1 ,-- I I ~ I--l " '! - e'-D" 111'-5- ,:t-ð- 1:f--ci- 11"-11- 5"-0- 2:t-"IO" M'-r/' fj'--r - - - - - - - - - 45DEGRI TWO·WAY 45DEGREE lANDSCAÆ RETAJLSHQPS SERVICE ""'" C ANGLE DRIVEWAY ANGLE SIDEWAl~ SETBACK CORRIDOR ,~, PARKING PARKING 7ff-O- - - - 76' R.OW, FINCH AVENUE VIEW 2 ~ 0 0 .. ::J '" - I 5" '! c: .. ...M.. Q, L- ~ III - .. J õ ~ e'-o· 18'-&" 13'-1" 13"-0" 1a"-8" e'-o· 24'-J" 4$-0· 10'-1)" 7B'-rI" 37'-0· 2"'-0" >7'4' 2"'-0" 0 ::J - - - - - - - - 45D£GRI 450EGREE r- "foNQ.WAY lANDSCAPE RETAIl SHOPS WAlKWAY rwo.WAY DOUBLE·LOADED TWO-WAY DOUBLE-LOAOED TWO-WAY '10 C ANGLE DRIVeWAY ANGLE SlŒWALI ""''' DRfVEAISLE PARKING DRIVE AISLE PARKING DRIVE AISLE := PARKING PARKING n"-o- - 76' R.OW, FINCH AVENUE r-, l I I - - I t 9 I b>1 I ::J - ~ ~ ~I ..... Pi [ 10 - ~ Q,- »1 I I I :t h tr :API, 0 3;-0" 25-0" :s7'-r/' 21'-0' 2rJ-o- 1J'-S" BIt-a- .0- 6"-8- 18'-rf 115"-0'" ~~ - - 0 DQUeU:·lOAOEO TWQ.WAY DOUBLE-LOADED TWO-WAY SINGLE_LOADED WÞJ.J(:of'IAY MAJOR TENANT I PA.RALLEl OtÆ_WAY W>O=", ONE_WAY ::J PARKING DRIVE AISLE PARKING DRIVE AISLE ,~ """ STREET DRIVEWAY MEDIAN DRIVEWAY ~I PARKING '" 415'-8- ;:¡: PROPOSED PRIVATE STREET - CONCEPTUAL CROSS SECTION VIEWS OF PROPOSED COMMERCIAL/RETAil AREA FIGURE 13 - 23 VIEW 3 ~ --, I 1 0 1- 0 :> - It 5' I: ~ I CD q Q. 01 CD - Õ - ~ 0 -...... :> 10'-r/' 6'-0' 12'-r/' 12"-0· 1Z'-cf -I' 12.'-11- 11"-t'" 11'-1'" 24'-3" 40'-0' 1"-5- '.'-0' 21"-0' 8'-0"' 52'-rt' :~ PROPOSED - - - - - - - - - - - - ;:I! PARALLEL LANDSCAPE RET....l SHOPS WAlKWAY RETAIL TWO·WAY e RETAIL I SIDEWAlKI TYPICAl-LANE TYPICAL LANE TYPICAL LANE LANDSCAPE TYPICAl-LANE TYPICALLANE STREET SETBACK PARKING DRIVEAISLE PLANTER PARKING lANOSCAP£ .""" PARKING 120' R.OW. STEVENS CREEK BOULEVARD BIlŒlANE ,.,,""" 1O'-D" &-0· 12'-0- 1.2.'-0· 12'-0" I 1~-Q· I 12'-å' I 12'-0- ~ EXISTING SIDEWALK/ TYPICAl-LANE TYPICAL lANE TYPICAl-LANE lANDSCAPE TYPICAL-lANE TYPICAL LANE TYPICAl-lANE SIDEWALK I lANDSCAPE ..,.. "N'''o..', r-' 1 1 - ~ ~I ~ ~ :> 'I . !:!: :> I: CD U ~ Q. ~ ~ > - CT 0 BIKE lANE ~I ...- 1ð'-So t:\'-V' 7(:1-0- 2IS'-r I'-D" ~ 12"-Q'" J 12"-1T 7'-1- J 12"-(1" J 1.2'-0"' '2'_ 8'-0"' .'-0'" PROPOSED 0 - - :> 45DEGREE LANDSCAPE ;:0 e TWO-WAY 90DEGREE WAlKWAY RETAIL SHOPS LANOSCAI IOEWALKI ANGLE TVP\CAlLANE TYPICAl-LANE MEDIAN TYPICALLANE TYPICAl-lANE TYPICAL LANE SIDEWAlK PlANTER DRIVE AISLE PARKII«> SETBACI<: rEo e SCAPE PARKING lANDSCAP :>' - 110' R.OW, VALLCO PARKWAY BIKE BIKE LANE 8'-0" ~-<>" ,2'-<>" 1.2.'-0· 12'-0"' 14'-0" , 12"-0- 1 1.2'-0" ,~- 1"'-0- 8'-0" - EXISTING 51 EWALKI TVPICAlLANE TYPICAL LANE TVPICALLANE UN·BUlLT TYPICAL lANE TYPICAL LANE TYPICAL LANE SIDEWAlK LANPSCAPE ,NDSCM lANDSCAPE ~EOIAN - - CONCEPTUAL CROSS SECTION VIEWS OF PROPOSED COMMERCIAL/RETAIL AREA FIGURE 14 - 2~ 5. Landscapin!! The proposed project would include new landscaping and trees throughout the project site in conformance with the City's provisions for new landscapes (Municipal Code, Section 14.15,050). 6. Parkin!! Parking for the proposed project would be provided throughout the site in surface parking lots, underground garages, and on private streets. The City requires the project to include a minimum of 738 parking spaces for residential uses and a minimum of 533 parking spaces for commercial/retail uses (refer to Table 2). As shown in Table 2 and discussed in Section IV.O, Transportation, the amount of parking proposed for the commercial/retail development portion ofthe project is deficient. Table 2 City of Cupertino Minimum Parkin!! Requirements and Proposed Parkin!! Sufficient and Proposcd Use City Requirements Parking Adequate Proposed2 Parking Rate Spaces Provided? Residential 2 spaces per 738' 856 Yes dwelling unit Restaurant with I space per 3 bar ( 150 seats and 20 seats; I space 70 employees) per employee Restaurant I space per 4 without bar (100 seats and 10 seats; I per 35 employees) employee 405 No, short 128 Specialty Food parking spaces (10,000 sf with I space per 250 no seats and sf or I space per 80 9,000 with 120 3 seats seats) General Retail I per 250 sf 348 (87,000 sf) Notes: sf ~ square feet I Based on Condo Option B 1 The on-street parking on Val/co Parkway (47 spaces) and Finch Avenue (68 spaces) can be used by guests, residents, public park users, and retail customers. The on-street parking, however. is not included in the proposed parking assumptions above. Source: City of Cupertino. Citv ofCuoertino Municioal Code: Chaoter 19,100 Parkinf! Revulations. 2005. City of Cupertino Toll Brothers/Calabazas Place Project 25 Initial Study December 2005 7. Roadwav Improvements Modifications to Finch Avenue The existing landscape median in Finch A venue would be removed and diagonal parking spaces added, The alignment of Finch Avenue would remain the same with curb, gutter, and sidewalk locations changing to accommodate new landscaping and parking (refer to Figure 5), Modifications to Vallco Parkway The project proposes to remove one through lane in each direction on Vallco Parkway, east of finch Avenue, Vallco Parkway, east of Finch Avenue, would become a two-lane roadway with left-turn lanes and angled parking provided on the south side (refer to Figure 5). All-Way Stop Controls The project proposes to install all-way stop controls mid-block on Vallco Parkway just west of Tantau Avenue to facilitate pedestrian traffic between the proposed residential areas located on the northern portion of the project site and the proposed retail uses located on the southern portion of the project site (refer to Figure 5; cross- walks shown on Vallco Parkway as project driveways between Calabazas Creek and Tantau Drive). 8. Gradin!! Most of the project site is currently at a higher elevation than the ground level of surrounding development. The project proposes to cut approximately 192,700 cubic yards of soil. Approximately 1,600 cubic yards of the excavated soil would be used to fill areas north and south of Vallco Parkway' 9. Utility Improvements The project proposes to complete sewer flow tests prior to issuance of the site development permit to determine if the proposed project would exceed the capacity of the existing sewer lines and connections serving the project site (refer to Section IV. Hydrology and Water Quality). 3 Snider, Kelly, Project Manager, Toll Brothers, written communications (Em ail) to David J. Powers & Associates, Inc, /Tom Toll Brothers. 17 November 2005. City of Cupertino Toll BrotherslCalabazas Place Project 26 Initial Study December 2005 C. ACCESS TO THE PROJECT SITE Direct access to the project site would be from Stevens Creek Boulevard, Finch A venue, Valko Parkway, and Tantau A venue. The project would provide three driveways on Stevens Creek, one driveway on Finch A venue, and five driveways on Vallco Parkway, Various private, internal streets would provide access and circulation throughout the project site (refer to Figure 5). Access to the project site is described in more detail in Section IV.O. Transportation of this Initial Study, City of Cupertino Toll BrotherslCalabazas Place Project 27 Initial Study December 2005 IV. ENVIRONMENTAL SETTING AND CHECKLIST In accordance with CEQA Section 21093(b) and CEQA Guidelines Section 15152(a), this Initial Study tiers ofJofthe City of Cupertino General Plan Final EIR (approved November 15, 2005). The amount of development this project proposes was included and analyzed in the City's General Plan Final E/R, This Initial Study, therefore, evaluates the project specific environmental impacts that were not addressed in the General Plan Final EIR, This section describes the existing environmental conditions on and near the project site, as well as environmental impacts associated with the proposed project, The proposed project includes two options, Senior Option A and Condo Option B. Ultimately, if the project is approved, one option will be chosen by the City of Cupertino and developed on the project site. Generally, the impacts of implementing Option A or Option B are comparable, When the impacts of the proposed options differ, they are addressed and discussed separately, The environmental checklist, as recommended in the CEQA Guidelines, was used to identifY environmental impacts that could occur if the proposed project is implemented. The right- hand column in the checklist lists the source(s) for the answer to each question. The sources cited are identified at the end of this document, Mitigation or avoidance measures are identified for all significant impacts. A. AESTHETICS 1. Settin!! Project Site The irregular shaped 25.4-acre project site is bounded by Stevens Creek Boulevard to the south, 1-280 to the north, and Tantau A venue to the east. The project site is bisected by Vallco Parkway (refer to Figures 3, 4, and 5). Existing conditions on the northern and southern portions of the site are described separately below. North of Vallco Parkway The northern portion of the project site is currently paved and developed with a two- story, 150,000 square foot industrial building (approximately 35 feet tall to the top of the roof screen) and an outdoor tennis court located to the northwest corner of the building, landscaping, and parking (refer to Figure 4 and Photos 1 and 2). A satellite dish, backup generator, above-ground diesel storage tank, and an electrical transformer are located on a concrete pad near the northeastern corner of the existing building. In front of the generator is a concrete chiller pad, surrounded by a chain- link fence (refer to Photo 3), Calabazas Creek is located west of the northern portion of the project site (refer to Figure 4), The creek has been modified and the slopes planted with trees and shrubs. City of Cupertino Toll Brothers/Calabazas Place Project 28 Initial Study December 2005 There is also an existing bridge that spans Calabazas Creek, connecting to the adjacent office development (refer to Photo 4). This bridge is currently closed. South of Vallco Parkway The southern portion of the project site is bounded by Vallco Parkway to the north, Tantau A venue to the east, Stevens Creek Boulevard to the south, and residential and retail uses under construction to the west (refer to Figures 3, 4, and 5). The southern portion of the site east of Finch A venue is undeveloped and mainly consists of bare ground and low growing vegetation. Trees and minimal landscaping are present along the perimeter (refer to Photos 5-7), The southern portion of the site west of Finch A venue, includes bare ground, dry vegetation, and a paved parking lot (refer to Photo 8). The site is not a scenic resource and is not located within a scenic corridor. Surrounding Visual Character The project site is surrounded by existing urban development, roadways, and an urbanized creek. Two-story industrial office buildings set back from the street in a campus-like setting are present west and east of the northern portion of the site. Commercial buildings, generally one to two stories in height, front Stevens Creek Boulevard. A two-story apartment complex is also located along Stevens Creek Boulevard, south of the project site, The major streets in this commercial area are heavily traveled by personal vehicles, trucks, and buses. Landscape trees and shrubs soften hardscape areas in some parking lots along Stevens Creek Boulevard and at the interface with 1-280. Three to five-story mixed residential and commercial developments are approved to the west of the project site, A large, two-story mall structure is located to the west of the project site, Scenic Views The site is flat and does not provide prominent viewpoints. The elevated overcrossing of 1-280 at Tantau A venue offers a brief view of hillsides to the southwest as motorists travel southbound. Views of the foothill areas to the south and west are generally obscured by existing and new development and landscape trees (refer to Photos 7 and 8). Motorists on Stevens Creek Boulevard and Tantau Avenue have limited views of the foothills where there is a break in the mass of buildings and large trees along the floor of the Santa Clara Valley. City of Cupertino Toll Brothers/Calabazas Place Project 29 Initial Study December 2005 Photo 1 - View of existing industrial office building on the northern portion of the project site, Photo 2 . View of existing industrial building located on the northern portion of the site. PHOTOS 1 AND 2 30 Photo 3 - View of the northeastern corner of the existing' building on-site. Photo 4 - View of access to bridge spanning Calabazas Creek, PHOTOS 3 AND 4 31 Photo 5 - View of project site. south of Vallco Parkway. from Finch Avenue looking east. Photo 6 - View of southern portion of the project site from Finch Avenue and Stevens Creek Boulevard intersection looking east. PHOTOS 5 AND 6 32 Photo 7 - View of southern portion of project site from Val/co Parkway, looking southeast towards Tantau Avenue, Photo 8 - View of southern portion of project site south of Val/co Parkway from Finch Avenue looking east. Construction of residential and retail buildings, not part of the proposed project. is in the background, PHOTOS 7 AND 8 33 2. Environmental Checklist and Discussion AESTHETICS Less Than Potentially Significant Less Than Beneficial Infonnation Significant With Significant No Impact Impact Source(s) Impact Mitigation Impact Inc~orated Would the project: I) Have a substantial adverse effect on 0 0 0 ~ 0 1,2 a scenic vista? 2) Substantially damage scenic 0 0 ~ 0 0 1,2 resources, including, but not limited to, trees, rock outcroppings, and historic buildings within a state scenic highway? 3) Substantially degrade the existing 0 0 ~ 0 0 I visual character or quality of the site and its surroundings? 4) Create a new source of substantial 0 0 ~ 0 0 I light or glare which would adversely affect day or nighttime views in the area? Discussion: Aesthetic values are, by their nature, very subjective. Opinions as to what constitutes a degradation of visual character will differ among individuals. One of the best available means for assessing what constitutes a visually acceptable standard for new buildings are the City's design standards and implementation of those standards though the City's design review process. The following discussion addresses the proposed changes to the visual setting of the project area and factors that are part of the community's assessment of the aesthetic values ofa project's design, Change in Visual Character The proposed project would result in the removal of one existing building, a parking lot, and most of the landscape trees. Buildings constructed on the site would be slightly taller than the existing building (35 feet versus 45 feet) and more of the site would be covered with multiple-storied structures, including residential buildings over podium parking structures. In the area planned for Commercial development, a parking lot and landscaping would face Stevens Creek Boulevard. West of Finch A venue, a landscaped park would also face the Stevens Creek street frontage. Future Streetscape on Vallco Parkway and Tantau As shown on Figures 5 and 6, the proposed project would replace an existing, two- story industrial office building and associated parking and landscaping with approximately 45 foot tall residential buildings and a landscaped park and recreational area. Buildings would be set back a minimum of approximately 35 feet from Vallco Parkway and Tantau Avenue and the design of the buildings and City of Cupertino Toll BrotherslCalabazas Place Project 34 Initial Study December 2005 associated landscaping would provide a pedestrian friendly environment along Vallco Parkway and T antau A venue, Future Streetscape on Stevens Creek Boulevard This portion of the site is located within a busy commercial corridor. As shown on Figure 5, development along the Stevens Creek frontage would include a park, 45- foot tall residential structures, 37-foot tall commercial buildings, and a parking lot. A minimum 15-foot landscaped setback is proposed along the residential and commercial frontages, Commercial uses would be located surrounding a surface parking area fronting the major thoroughfare of Stevens Creek Boulevard. As discussed previously, the surrounding land uses along Stevens Creek Boulevard include one to three story buildings. The proposed residential buildings along Stevens Creek Boulevard would be four-stories tall. Although the proposed residential buildings would be greater in height than the facing one and two-story buildings on Stevens Creek Boulevard (south of the project site) they would be similar in height to the development currently under construction immediately adjacent to the western boundary of the project site. Development of the open, vacant lot shown in Photo 6 (southern portion of project site) would alter the visual character of the site itself, but would not substantially alter the visual character of the streetscape along Stevens Creek Boulevard. Design Review The proposed residential and commercial development on the site will be evaluated for consistency with the City's standards as a part of Design Review (Architectural and Site Approval) process required for approval of the specific project design, if the rezoning is approved, This review considers the relationship of the proposed buildings with the surrounding land uses and the street, compliance with adopted height limits, setbacks, architectural, and landscape design guidelines, and the overall quality and compatibility of the building materials and architecture with the surrounding area, Although new development on the site would be visually different from what is currently in place, if consistent with the City's design review as determined through the design review process, it would not result in a degradation of the visual character of the Stevens Creek Boulevard corridor and downtown areas. Scenic Views As noted previously, scenic views from the project vicinity are limited. The foothills to the west and south are generally obscured by existing development and landscape trees. Implementation of the proposed rezoning would not have a substantial effect on a scenic vista. The Tantau Avenue overcrossing of 1-280 is elevated and provides some views of the hillsides to the southwest for drivers, The views of the hillsides from the City of Cupertino Toll BrotherslCalabazas Place Project 35 Initial Study December 2005 overcrossing, however, are obscured by a fence located along the overpass, tall perimeter trees, and the existing building located on the northern portion of the site. The proposed buildings on the northern portion of the site would be approximately 10 feet taller than the existing office building. This increase in height is not anticipated to substantially block scenic views in the area. Light and Glare The proposed residential and commercial buildings would not include substantial reflective glass surfaces that could result in glare impacts. The parking areas for the residential development will generally be located under the multiple family units. The proposed commercial area and residential recreational and landscaped space will have security lighting around buildings and surface parking areas similar to existing and approved lighting other properties along Stevens Creek Boulevard. At the time of final design review, a lighting plan will be reviewed by the Director of Planning to assure that lighting is directed downward and will not spill over onto adjacent properties. 3. Conclusion As discussed above, the proposed project would not result in significant visual or aesthetic impacts, (Less Than Significant Impact) City of Cupertino Toll BrotherslCalabazas Place Project 36 Initial Study December 2005 B. AGRICULTURAL RESOURCES 1. Settin!! According to the Santa Clara County Important Farmland 2002 map, the project site is designated as Urban and Built-Up Land. Urban and Built-Up Land is defined as residential land with a density of at least six units per 10-acre parcel, as well as land used for industrial and commercial purposes, golf courses, landfills, airports, sewage treatment, and water control structures. Currently, the project site is not used for agricultural purposes and is not the subject ofa Williamson Act contract.' The site is located within an urban area of Cupertino and there is no property used for agricultural purposes adjacent to the project site. 2. Environmental Checklist and Discussion AGRICULTURAL RESOURCES Less Than Potentially Significant Less Than Beneficial Information Significant With Significant No Impact Impact Source(s) Impact Mitigation Impact Incorporated Would the project: 1) Convert Prime Farmland, Unique 0 0 0 ~ 0 3 Farmland, or Farmland of Statewide Importance (Farmland), as shown on the maps prepared pursuant to the Farmland Mapping and Monitoring Program of the California Resources Agency, to non-agricultural use? 2) Conflict with existing zoning for 0 0 0 ~ 0 2 agricultural use, or a Williamson Act contract? 3) Involve other changes in the 0 0 0 ~ 0 1,2,3 existing environment which, due to their location or nature, could result in conversion of Farmland, to non-agricultural use? Discussion: As discussed above, the project site is not designated as farmland or used for agricultural purposes. For these reasons, the proposed project would not result in any significant impacts to farmland. 3. Conclusion The proposed project would not result in significant impacts to farmland, (No Impact) 4 City of Cupertino. The City of Cupertino General Plan, Updated 15 November 2005, City of Cupertino Toll BrotherslCalabazas Place Project 37 Initial Study December 2005 C. AIR QUALITY The following discussion is based in part upon an air quality analysis completed by Illingworth & Rodkin, lnc, in October 2005, The air quality report completed for the project analyzed the local impacts of air pollution emitted from 1-280 traffic on the proposed project. A copy of the air quality analysis is included as Appendix A in this Initial Study. I. Settin!! Background Information Clean air is a natural resource of vital importance, Pollutants in the air can cause health problems, especially for children, the elderly, and people with heart or lung problems. Healthy adults may experience symptoms during periods of intense exercise. Pollutants can also cause damage to vegetation, animals, and property. Regulatory Setting The City of Cupertino is within the San Francisco Bay Area Air Quality Management District (BAAQMD). The District is the agency primarily responsible for assuring that the federal and state ambient air quality standards are maintained in the San Francisco Bay Area, Air quality standards are set by the federal government (the 1970 Clean Air Act and its subsequent amendments) and the state (California Clean Air Act of 1988 and its subsequent amendments). Regional air quality management districts such as the BAAQMD must prepare air quality plans specifying how state standards would be met. The BAAQMD's most recently adopted Clean Air Plan (CAP) is the Bay Area '97 Clean Air Plan. Regional and Local Criteria Pollutants Major criteria pollutants, listed in "criteria" documents by the U.S. Environmental Projection Agency (USEPA) and the California Air Resources Board (CARB) include ozone, carbon monoxide, nitrogen dioxide, sulfur dioxide, and suspended particulate matter (PM). These pollutants can have health effects such as respiratory impairment and heart/lung disease symptoms. The San Francisco Bay Area is currently a nonattainment area for the federal I-hour ozone standard and Santa Clara County is a nonattainment area for ozone and PMJ05 under the California Clean Air Act. Toxic Air Contaminants Toxic air contaminants (TACs) are a broad class of compounds known to cause morbidity or mortality (usually because they cause cancer). TACs are found in ambient air, especially in urban areas, and are caused by industry, agriculture, fuel combustion, and commercial operations (e.g., dry cleaners). TACs are typically found in low concentrations, even near their source (e.g., benzene near a freeway). 5 PMIO= particulates less than 10 microns in diameter. City of Cupertino Toll BrotherslCalabazas Place Project 38 Initial Study December 2005 Because chronic exposure can result in adverse health effects, T ACs are regulated at the regional, state, and federal level. Diesel exhaust is the predominant TAC in urban air and is estimated to represent about two-thirds of the cancer risk from TACs (based on the statewide average). According to the CARB, diesel exhaust is a complex mixture of gases, vapors and fine particles. This complexity makes the evaluation of health effects of diesel exhaust a complex scientific issue. Some of the chemicals in diesel exhaust, such as benzene and formaldehyde, have been previously identified as T ACs by the CARB, and are listed as carcinogens either under the state's Proposition 65 or under the federal Hazardous Air Pollutants programs. California has adopted a comprehensive diesel risk reduction program. The USEPA and CARB have adopted low sulfur diesel fuel standards that will reduce diesel particulate matter substantially. These go into effect in June 2006. Since identifying diesel particulate matter as a toxic air contaminant, the CARB has conducted studies to identify existing health effects from exposure to diesel Particulate Matter (DPM), The CARB has identified the average year 2000 statewide potential cancer risks at 540 excess cases per million people. The potential risk near high volume freeways was found to be much higher. The risk is predicted to decrease in the future due to plans to reduce diesel particulate matter emissions from a variety of sources. The 2000 CARB report predicts an average statewide risk at 360 excess cancer cases per million people in 2020. Modeling information supplied by CARB indicates that the cancer risk due to DPM in Cupertino is about 500 excess cases per million people. Sensitive Receptors The BAAQMD defines sensitive receptors as facilities where sensitive receptor population groups (children, the elderly, the acutely ill and the chronically ill) are likely to be located, These land uses included residences, school playgrounds, child- care centers, retirement homes, convalescent homes, hospitals and medical clinics. Existing sensitive receptors near the project site include the residential uses south of the project site and future residential uses to the west of the project site (refer to Figure 3), 2. Environmental Checklist and Discussion AIR QUALITY Less Than Potentially Significant Less Than Beneficial nfonnatåon Significant With Significant No impact Impact Source(s) Impact Mitigation Impact Incorporated Would the project: 1) Conflict with or obstruct 0 0 IZI 0 0 4 implementation of the applicable air aualitv plan? City of Cupertino Toll BrotherslCalabazas Place Project 39 Initial Study December 2005 AIR QUALITY Less Than Potentially Significant Less Than Beneficial Information Significant With Significant No Impact Impact Source(s) Impact Mitigation Impact Incorporated Would the project: 2) Violate any air quality standard or 0 J:2J 0 0 0 4 contribute substantially to an existing or projected air quality violation? 3) Result in a cumulatively 0 0 J:2J 0 0 4 considerable net increase of any criteria pollutant for which the project region is classified as non- attainment under an applicable federal or state ambient air quality standard including releasing emissions which exceed quantitative thresholds for ozone precursors? 4) Expose sensitive receptors to 0 J:2J 0 0 0 4 substantial pollutant concentrations? 5) Create objectionable odors affecting 0 0 0 J:2J 0 1,4 a substantial number of people? Discussion: Air Quality Impacts From the Proposed Project Regional and Local Impacts The BAAQMD CEQA Guidelines recommend criteria of significance for air quality impacts from development in the San Francisco Bay Area. According to the guidelines a General Plan may be deemed to have a significant impact on air quality if it is inconsistent with the most recently adopted CAP. Under the Clean Air Plan, cities and other agencies, including counties, BAAQMD, the Metropolitan Transportation Commission, Congestion Management Agencies, and school districts, are also required to make a reasonable effort to implement Transportation Control Measures (TCMs), such as promoting pedestrian travel, to offset or reduce air emissions associated with planned growth (Table 3). The proposed project cannot, individually implement all of the listed TCMs, but the City's General Plan does include all those measures that are consistent with a City's responsibility. Most of these measures are already reflected in existing General Plan policies, which are the basis of mitigation for all land use impacts in Cupertino. City of Cupertino Toll BrotherslCalabazas Place Project 40 Initial Study December 2005 Table 3 CAP Transportation Control Measures To Be Implemented By Cities Transportation Description Control Measure 1. Expand Employee · Provide assistance to regional and local ride sharing Assistance Program organizations. 9. Improve Bicycle · Establish and maintain bicycle advisory committees Access and Facilities in all nine Bay Area Counties · Develop comprehensive bicycle plans. · Encourage employers and developers to provide bicycle access and facilities. · Improve and expand bicycle lane system. 12. Improve Arterial · Continue ongoing local signal timing programs. Traffic Management · Study signal preemption for buses on arterials with high volume of bus traffic. · Expand signal timing programs, · Improve arterials for bus operations and to encourage bicvcling. 15. Local Clean Air · Incorporate air quality beneficial policies and Plans, Policies and programs into local planning and development Programs activities, with a particular focus on subdivision, zoning and site design measures that reduce the number and length of single-occupant automobile trips, 17. Conduct · Promote demonstration projects to develop new Demonstration Projects strategies to reduce motor vehicle emissions. · Projects include low emission vehicle fleets and LEV refueling infrastructure. 19. Pedestrian Travel · Review/revise general/specific plan policies to promote development patterns that encourage walking and circulation policies that emphasize pedestrian travel and modify zoning ordinances to include pedestrian-friendly design standards · Include pedestrian improvements in capital improvements programs. · Designate a staff person as a Pedestrian Program Mana!!er. 20. Promote Traffic · Include traffic calming strategies in the Calming Measures transportation and land use elements of general and specific plans. · Include traffic calming strategies in capital improvement programs. City of Cupertino Toll BrotherslCalabazas Place Project 41 Initial Study December 2005 The City's General Plan has recently been updated, The amount of commercial and residential development assumed in the build out of the General Plan, including that allowed on the project site, is not greater than assumed in the current CAP. Since the project proposes development that is already accounted for in the General Plan and CAP, the proposed project would not result in new or significant increases in regional or local air quality impacts within the City of Cupertino not already analyzed and reflected in the Environmental Impact Report (EIR) certified for the General Plan.6 The project proposes a mix of residential and commercial uses and internal pedestrian connections throughout the project site, such as the proposed all-way stop controls mid block on Vallco Parkway just west of Tantau Avenue, in keeping with TCMs called for in the General Plan (refer to Table 3 and Figure 15). The proposed project includes the following TCMs: Meet City bike storage and facilities requirements per City of Cupertino Municipal Code 19.100,040 (refer to TCM #9 in Table 3). Modifications to improve the operation of the traffic signal at Wolfe Road/Vallco Parkway and to analyze possible improvement of coordination among the traffic signals along Wolfe Road between Stevens Creek Boulevard and 1-280 (refer to TCM # 12 in Table 3), Modifications to traffic signals at Finch Avenue/Stevens Creek Boulevard, Tantau Avenue/Stevens Creek Boulevard, and Vallco Parkway/Tantau Avenue, as specified by the Director of Public Works (refer to TCM #12 in Table 3), A five-year limited congestion management program including the following intersections: Stevens Creek Boulevard/Tantau Avenue, Stevens Creek Boulevard/Finch Avenue, Stevens Creek Boulevard/Wolfe Road, Wolfe Road/Vallco Parkway, Tantau Avenue/Vallco Parkway, and Perimeter RoadlVallco Parkway, The program will consist of annual monitoring of the performance of the intersections and issuing of recommendations for operational improvements, if any, required at the program intersections (refer to TCM #12 in Table 3). Reconfiguration ofVallco Parkway and Finch Avenue that includes reducing the vehicle laneage and introduction of diagonal parking (refer to TCM #20 in Table 3). 6 City of Cupertino, Final EnvironmentallmDact ReDort: Citv of CUDertino General Plan, 15 November 2005. City of Cupertino Toll BrotherslCalabazas Place Project 42 Initial Study December 2005 / I" I / .., · L() , ~ ,- .jj 11 ~ l1J 0 ~ a: ~ · " " ::J w -E g <.9 11 fi!:! ~ lL. ~~ ~ .g > " 8.:§ · ~ ì tîÎ! >Jj ~ ~ ., ~ ï ] ~ ] ! ~ r.c:.-·--~ ì 43 (/) >- « S I I- « 0.. Z « a: l- (/) l1J o l1J 0.. Construction-Related Impacts Construction activities would temporarily affect local air quality. Construction activities such as demolition, earthmoving, construction vehicle traffic and wind blowing over exposed earth would generate exhaust emissions and fugitive particulate matter emissions that affect local and regional air quality. Construction activities are also a source of organic gas emissions. Solvents in adhesives, non- water based paints, thinners, some insulating materials, and caulking materials would evaporate into the atmosphere and would participate in the photochemical reaction that creates urban ozone. Asphalt used in paving is also a source of organic gases for a short time after its application, Construction dust could affect local air quality at various times during construction of the project. The dry. windy climate of the area during the summer months creates a high potential for dust generation when and if underlying soils are exposed to the atmosphere. The effects of construction activities would be increased dustfall and locally elevated levels of PM 10 downwind of construction activity. This impact would be significant. Impact: Construction of the proposed project could result in significant short-term air quality impacts associated with dust generation, Mitigation and Avoidance Measures: The project proposes the following mitigation measures to reduce construction-related impacts to a less than significant level; · Use dust-proof chutes for loading construction debris onto trucks. · Water or cover stockpiles of debris, soil, sand or other materials that can be blown by the wind. . Cover all trucks hauling soil, sand, and other loose materials or require all trucks to maintain at least two feet offreeboard, · Sweep daily (preferably with water sweepers) all paved access roads, parking areas and staging areas at construction sites, · Sweep streets daily or apply non-toxic soil binders to exposed stockpiles (dirt, sand, etc,). . Install sandbags or other erosion control measures to prevent silt runoff to public roadways. . Replant vegetation in disturbed areas as quickly as possible. City of Cupertino Toll BrotherslCalabazas Place Project 44 Initial Study December 2005 . Address dust or complaints regarding dust within 24 hours to the satisfaction of City staff (or other authority). Air Quality Impacts To the Proposed Project The following discussion is based upon an air quality analysis by Illingworth & Rodkin (2005), Carbon Monoxide (CO) Exposure Carbon monoxide is an air pollutant that is directly emitted from combustion sources (e,g., automobiles), Carbon monoxide emissions from 1-280 traffic were calculated for the location of the nearest proposed residential units, using the Caline4 Line- Source dispersion model for 20 I 0 conditions, The I-hour and 8-hour carbon monoxide levels for exposures at approximately 70 feet and 100 feet from the freeway would be below the significance thresholds established by the state for one-hour and eight-hour periods (see Table 4). The proposed project would not result in significant impacts from carbon monoxide exposure, Table 4 Predicted Worst Case Carbon Monoxide Concentrations Resultin!! from 1-280 Traffic in 2010* DescriDtion I-Hour Level 8-Hour Level Proposed residential units along 1-280 - 8 PPM 5.5 PPM aDDroximatelv 70 feet from the nearest lane Proposed residential units along 1-280 - 7PPM 4.8 PPM aDDroximatelv 100 feet from the nearest lane Si,mificance Threshold (CAAQS) 20 PPM 9.0 PPM Nole: . Includes background level of6.0 PPM for I-hr exposure and 4,0 PPMfor 8-hr exposures. Emission rates are forecast to decrease substantially in the future; therefore, carbon monoxide levels are predicted to remain below ambient air quality standards in the project area. Future residents are therefore unlikely to be exposed to carbon monoxide concentrations from 1-280 traffic that would violate an air quality standard. Diesel Particulate Matter (DPM) Exposure As discussed previously, diesel exhaust is a source of diesel particulate matter, a toxic air contaminate that poses cancer risks, Under the BAAQMD CEQA Guidelines, an incremental risk of more than 10 cases of cancer per million at the Maximally Exposed Individual (MEI) would be considered a significant impact. Modeling of future DPM emissions for traffic on 1-280 was completed and analyzed by City of Cupertino Toll BrotherslCalabazas Place Project 45 Initial Study December 2005 Illingworth & Rodkin, Inc, to determine the number of MEI cases resulting from placing housing near 1-280. Over the course of a 70-year lifetime exposure, the incremental risk was calculated to be about six cancer cases per million people at the first row of proposed residences. The DPM concentrations decrease at positions further from the freeway. The proposed project would not result in significant impacts from DPM exposure. 3. Conclusion The proposed project would not result in significant regional or local air quality impacts. (Less Than Significant Impact) The proposed project, with the implementation of the mitigation measures above, would not result in significant air quality impacts during construction. (Less Than Significant Impact with Mitigation Incorporated) The proposed project would not expose sensitive receptors to substantial pollutant concentrations, (Less Than Significant Impact) City of Cupertino Toll BrotherslCalabazas Place Project 46 Initial Study December 2005 D. BIOLOGICAL RESOURCES The following discussion is based upon a biotic survey completed by Live Oak Associates in October 2005, which is included as Appendix B of this Initial Study. The discussion is also based upon a tree survey and an addendum to the tree survey completed by Barrie D. Coate and Associates in July 2005 and October 2005, respectively. Complete copies of the tree survey and addendum are included as Appendix C of this Initial Study. 1. Settin!! The project site is generally level and is approximately 180 feet above mean sea level. A steep bank separates the site from a Santa Clara Valley Water District service road and Calabazas Creek. Much of the site has been maintained by routine mowing and supports mainly non-native/ruderal grassland, with scattered trees, mainly shamel ash, coast redwood, and Monterey pine trees, and landscaping associated with an existing industrial building. A number of other native and non- native trees are present as well as various landscape shrubs, The wildlife value of the site is fairly poor, owing to its size and shape and the fact that the site is surrounded by urban development. No Habitat Conservation Plan (HCP), Natural Community Conservation Plan (NCCP), or other approved local, regional, or state HCP includes the project area. Biotic Habitats As mentioned above, the site is primarily non-native ruderal grassland. Most of the site is covered in non-native grasses and scattered trees, with the northern urbanized portion of the site (north of Vall co Parkway) supporting landscape plants, pavement and an office building. Plant species on the site include common wild oats, Italian rye grass, and bristly ox-tongue, There are also several tree species on the site, including ash, coast redwood, and Monterey pine. The trees on the project site are discussed in more detail below. The non-native ruderal grassland south of Vallco Parkway will support wildlife species and adapted to living in urban settings. Reptilian species observed on-site include the western fence lizard, alligator lizard, gopher snake, and possibly the common garter snake, Avian species observed on the site include rock dove, mourning dove, and American crow. Other resident and migratory avian species that may occur in this habitat include Anna's hummingbird, black phoebe, and loggerhead shrike. The non-native ruderal grassland habitat also supports common mammalian species such as the Botta's pocket gopher, deer mouse, and California ground squirrel. Larger mammals that are expected to occur in the grassland habitat include opossums, raccoons, and skunks, City of Cupertino Toll Brothers/Calabazas Place Project 47 Initial Study December 2005 Special-Status Plant and Animal Species Applicable Regulatiom' Threatened and Endangered Species State and federal "endangered species" legislation has provided the California Department of Fish and Game (CDFG) and the U.S. Fish and Wildlife Service (USFWS) with a mechanism for conserving and protecting plant and animal species of limited distribution and/or low or declining populations, Species listed as threatened or endangered under provisions of the state and federal Endangered Species Acts, candidate species for such listing, state species of special concern, and some plants listed as endangered by the California Native Plant Society (CNPS) are collectively referred to as "species of special status," Permits may be required from both the CDFG and USFWS if activities associated with a proposed project will result in the take of a listed species. To "take" a listed species, as defined by the state of California, is "to hunt, pursue, catch, capture, or kill, or attempt to hunt, pursue, catch, capture or kill" said species (California Fish and Game Code, Section 86). "Take" is more broadly defined by the federal Endangered Species Act to include "harm" of a listed species (16 USC, Section 1532(19),50 CFR, Section 17,3). Migratory Birds State and federal laws also protect most bird species, The Federal Migratory Bird Treaty Act (FMBTA: 16 U.S.C" scc. 703, Supp. 1,1989) prohibits killing, possessing, or trading in migratory birds, except in accordance with regulations prescribed by the Secretary of the Interior, This act encompasses whole birds, parts of birds, and bird nests and eggs. Birds of Prev Birds of prey, such as owls and hawks, are protected in California under provisions of the State Fish and Game Code, Section 3503.5, (1992), which states that it is "unlawful to take, possess, or destroy any birds in the order Falconiforrnes or Strigiformes (birds of prey) or to take, possess, or destroy the nest or eggs of any such bird except as otherwise provided by this code or any regulation adopted pursuant thereto," Construction disturbance during the breeding season could result in the incidental loss of fertile eggs or nestlings, or otherwise lead to nest abandonment. Disturbance that causes nest abandonment and/or loss of reproductive effort is considered "taking" by the CDFG, City of Cupertino Toll BrotherslCalabazas Place Project 48 Initial Study December 2005 Special-Status Plants and Animals On-Site A number of native plants and animals have been formally designated as threatened or endangered under state and federal endangered species legislation. These are species that have low populations, limited distributions, or both. Others have been designated as "candidates" for such listing. Still others have been designated as "species of special concern" by the CDFG. The CNPS has also developed a set of lists of native plants considered rare, threatened or endangered (CNPS 2005). Collectively, these plants and animals are referred to as "special status species." Special-Status Plant Species A search of relevant databases was completed to identify special-status plant species that may occur in the project vicinity. A total of25 special-status plant species were identified in the databases that could occur in the general project vicinity. None of those 25 special-status plant species occur on the site (refer to Appendix B). This is mainly due to the site being surrounded by urban development and isolated from grassland or oak woodland habitat that supports the special status plant species found in the region. Special-Status Animal Species A search of relevant databases was completed to identify special-status animal species that may occur in the project vicinity. A total of 14 species-status animal species occur, or once occurred, within the project vicinity. Of these, \3 would be absent from or unlikely to occur on the site. The one remaining special-status animal species that may occur more frequently as a regular forager or may be resident to the site is the loggerhead shrike, Reconnaissance surveys were completed in September 2005 to determine the presence or absence of special-status species including loggerhead shrikes, nesting raptors, burrowing owls, and bats. No loggerhead shrikes or nests were observed during a reconnaissance survey of the project site. The site supports suitable foraging habitat for the shrike, but lacks their preferred nesting habitat (dense bushes or trees). No nesting raptors, burrowing owls, or bats were observed on the site. Swallows, however, were observed flying over the site, They may nest under the overpass located north of the project site. Wetlands and Other "Jurisdictional Waters" Jurisdictional waters include rivers, creeks, and drainages with a defined bed and bank that may carry at most ephemeral flows, lakes, ponds, reservoirs, and wetlands, Such waters may be subject to the regulatory authority of the USACE, CDFG, and R WQCB. The site does not support any natural water features, therefore, does not support jurisdictional waters. City of Cupertino Toll BrotherslCalabazas Place Project 49 Initial Study December 2005 Applicable Regulation Trees The City of Cupertino recognizes the substantial economic, environmental, and aesthetic importance of its tree population. The City finds that the preservation of specimen and heritage trees on private and public property, and the protection of all trees during construction, is necessary for the best interests of the City and of the citizens and public (Municipal Code Chapter 14,18), The City's Municipal Code calls for protection of "specimen" and "heritage" trees and requires a permit prior to their removal. Specimen Trees include selected species that meet the size parameters shown in Table 4. These trees are required to be protected as a part of a zoning, tentative map, use permit, or privacy protection requirement in an R-I zoning district. Heritage Trees are any tree or grove of trees which, because of factors including, but not limited to, its historic value, unique quality, girth, height, or species, has been found by the Architectural and Site Approval Committee to have a special significance to the community. Trees On-Site Table 5 Criteria for Specimen Trees (measured at 4.5 feet from natural grade) Single- Multi- Species Trunk Trunk Diameter Diameter (in inches) (in inches) Oak trees* 10 20 California Buckeye 10 20 Big Leaf MaDle 12 25 Deodar Cedar 12 25 Blue Atlas Cedar 12 25 Note: *An oak tree includes all trees %ak genus, including. but not limited to, the valley oak and coast live oak Source: City of Cupertino. MuniciDal Code. Section 14./8.020. A tree survey of the project site by Barrie Coate & Associates (2005) assessed trees that were six-inches in diameter or larger. A total of 317 trees were reported on the project site. A complete table of the surveyed trees, including their species, diameter, and health, is included in Appendix C. A summary of the tree species on-site is listed in Table 6, In addition, there are nine landscape trees located in the median on Finch A venue. The locations of the trees on-site are shown on Figure 16. The most common species on the site include shamel ash and coast redwood. The vast majority of the trees on-site are in excellent to fair health; 22 trees are in poor health or dead. City of Cupertino Toll BrotherslCalabazas Place Project 50 Initial Study December 2005 Table 6 Summary of Tree Species Located On-Site* Common Name Scientific Name Total Number Tree Number{s)** 1-10,13-17,30-91, Shamel ash Fraxinus uhdei 151 127-166,178,179, 180, 183-186, 196, 218-221,223-243,317 Chinese elm Ulmus varvifolia 4 11,12,25,26 Coast redwood Sequoia 75 18-24,27,28,29,168, semvervirens 169,254-316 Canary Island date Phoenix 7 92-98 palm canariensis Blackwood acacia Acacia 5 102-106 melanoxvlon Orange Citrus aurantiaca 2 112,124 Aleppo pine Pinus halevensis I 113 Elm Ulmus snecies 8 107-111,114,115,116 Silver wattle Acacia dealbata 1 117 English walnut JUf!lans ref{ia 6 118-123 Redbox or Silver Eucalyptus 1 125 dollar gum volvanthemos Valley oak Ouercus lobata I 126 167,175,176,177, Monterey pine Pinus radiata 10 181, 182, 187, 188, 189,202 Honey locust Cleditsia 6 170-173, 210,211 triacanthos Evergreen pear Pvrus kawakami 6 190-195 Indian hawthorne Rhaliolevis indica 5 197-201 Raywood ash Fraxinus oxvcaroa 5 203-207 Coast live oak Quercus af!Yifolia 7 212-215,251,252,253 African Yew pine Podocarpus 2 216,217 f!Yacilior Japanese maple Acer valmatum I 222 California buckeye Aesculus I 244 californica Scarlet oak Ouercus coccinea I 248 Oak spec ies I Ouercus species I 250 Noles: '" Nine trees located in the landscape median in Finch Ayenue are not included. "'*Locations afthe on-site trees are shown on Fiflure /6. City of Cupertino Toll BrotherslCalahazas Place Project 51 Initial Study December 2005 200' 400' œ # = Tree Number - FIGURE 16 - 52 o " " ,I: " . :,... ,"JJ.<I " ~n ~í ~·1 '" '~ :"'Ê1 ~ II. ~ 'ó " .._-- - :::-:.l:;:::'~~'n{;~~~~~;~r~~~,:)~:..~~._,- -. - u_._ f ~., '~" , , _ ..3i'~;: ", '-~·::::T::~:! '= !:I¡'~ , ~~~":'~<~\'\ I ,; "',' ."", .-¡--. I" j. X" /,.'" .) ___n !.i:;. /¡ì ,,- i ~_~~" ,~_ 41 j:: .. i¡;- --;:-<"..,. " 'II I! J /( """". II" ; 1S ! '. . .. ""..... ....-c... ¡ . I / . . ',/ .-" /..........~ ¡ I,', '/1, ,I ,', ! I "~,I . 'J / ' :¡A;, .' : 1/ð1í;/ ~ : f ¡'.. "I'Il I =-- ; .~ /' ! :! .~/ I .---- A , " 'Þ.' !/ i ~~--.ó,...,," .. .....,....:-:-;;" ~,.,". !jC,:1':,' =--- 1,-1"· 'if,,1 ,.JI/; I' " , , 'I ; i M'¡:! :1 "t " ::/:: I ,W '¡ I; . . I I ( '''i-' .,......, , I ,,' ., ." I " .' '-i -, _ _". '. '__, )0, , p, · ,1~1't.1" I '''''''-----" "'..~ , 'I' : It,,·· I 'I¡,,¡.u ..,) , ,¡",! 'II )~'I~ ' " . , ""'- ,'-,0., =? ' . ., ::., , ' , 'I' i ,', "."--~ ~~¡'" ~,.'.'l.",'., '-f.,\,.., '1:,,'1'.. :Jti' ~,:..: .~.I ..' I' . ., , '~I'" "."'1'" ' '" ..... , "'i i 'I n .¡ ;,' m: ~.' -.: . " I, , . " "', I, I I'. .' , "., i:, ' ; II f :',:, :.0= b "h-: =. if~ ~ ~ :'~ j¡: " 'I ,0 I "I: II ' .1' . I 'I .',' , ; ".,~ · "', , JL I I ,,1 ' , ,. " I '.":! "'" ' :, , " I"" -j ., I .JL dS·, _ I 'I ' r, ' , "', - '"if "'i '! ',,'e · , '. 'II·,. " " c==:J _.__ . 'I· I".Ji ."'->c..cc; " ¡ r ""' r, _J '--~". ' I "\-!'ijjlto' J.___, 'I I I ['H-'-"_- I' p' I [, "ùn ___~== : I , 1.1 II I, u I I Y1;', I' 0 ' , II ,I '. ,_ · , ,1 r ,~ _..JI___fL_ I I "I ,. I ~ __ ___ o 'I' '1'1.11\_._ .___. ~---..:::::. ' . 'I,,~._---- _~c_c.-,t.1~,.;';~:':,~·-,'·:,;¿-- --:.:~~-::; :; ':" ¡<~' . ... ----- / ;' ./ TREE SURVEY MAP Of the trees located on-site, eight are considered Specimen Trees (tree numbers 126, 212,213,214,215,251,252, and 253. The size, estimated height, and condition of each Specimen Tree is listed in Table 7, Specimen Tree number 126, a valley oak, is dead, All other Specimen Trees are coast live oak trees and are all generally in excellent health. The coast live oak trees are located along the western boundary of the project site near Calabazas Creek (refer to Figure 16). The Specimen oak trees range from 12 to 16 inches in diameter and are between 20 and 30 feet in height. There are no heritage trees on the site. Table 7 Summary of Specimen Trees On-Site Diameter Tree Common in inches Approx. # Name Scientific Name (4.5 feet Height Health t Structure2 above (in feet) ¡:rade) 126 Vallevoak Ouercus lobata 57 50 Dead Dead 212 Coast live oak Quercus awifolia 16 35 1 I 213 Coast live oak Ouercus al!ri[olia 12 20 2 I 214 Coast live oak Quercus awifolia 15 25 I I 215 Coast live oak Ouercus al!rifolia 15 25 I 1 251 Coast live oak Quercus awifolia 16 20 2 1 252 Coast live oak Ouercus agrifolia 16 30 1 2 253 Coast live oak Ouercus ai!rifolia 12 30 2 2 Notes: Locations of trees are shown in Figure /6. J Health: I ~Excellent. 5 ~Extremely Poor 2 Structure: I =Excel/ent, 5=Extreme/y Poor City of Cupertino Toll BrotherslCalabazas Place Project 53 Initial Study December 2005 2. Environmental Checklist and Discussion BIOLOGICAL RESOURCES Less Than Potentially Significant Less Than Beneficial Information Significant With Significant No Impact Impact Source(s) Impact Mitigation Impact Incorporated Would the project: I) Have a substantial adverse effect. 0 0 IZJ 0 0 5 either directly or through habitat modifications, on any species identified as a candidate, sensitive, or special status species in local or regional plans, policies, or regulations, or by the California Department of Fish and Game or V.S, Fish and Wildlife Service? 2) Have a substantial adverse effect on 0 0 IZJ 0 0 5 any riparian habitat or other sensitive natural community identified in local or regional plans, policies, regulations, or by the California Department of Fish and Game or V.S, Fish and Wildlife Service? 3) Have a substantial adverse effect 0 0 0 IZJ 0 5 on federally protected wetlands as defined by Section 404 of the Clean Water Act (including, but not limited to, marsh, vernal pool, coastal, etc.) through direct removal, filling, hydrological interruption, or other means? 4) Interfere substantially with the 0 0 IZJ 0 0 5 movement of any native resident or migratory fish or wildlife species or with established native resident or migratory wildlife corridors, impede the use of native wildlife nursery sites? 5) Conflict with any local policies or 0 IZJ 0 0 0 5,6,7 ordinances protecting biological resources, such as a tree preservation policy or ordinance? 6) Conflict with the provisions of an 0 0 0 IZJ 0 5 adopted Habitat Conservation Plan, Natural Community Conservation Plan, or other approved local, regional, or state habitat conservation Dlan? City of Cupertino Toll BrotherslCalabazas Place Project 54 Initial Study December 2005 Discussion: Non-Native Ruderal Grassland Impacts Loss of Habitat for Native Wildlife Development of the proposed project would result in the loss of approximately 20 acres of non-native/ruderal grasslands within a developed urban area. This habitat possesses minimal biotic value and provides only low-quality habitat for most species. Nonetheless, the site comprises a portion of certain wildlife's entire home range or territory, As such, some species may use the site, but most wildlife presently using the site do so as part of their normal movements for foraging, mating, and caring for young, Individuals of the various vertebrate species presently occupying the site would be displaced or lost from the development area. However, impacts due to the loss of low quality ruderal habitat within an urban setting are not anticipated to affect the persistence and presence of local wildlife. The development of the proposed project would result in less than significant impacts to ruderal grassland habitat. Interference with the Movement of Native Wildlife The movements of various species on- and off-site vary depending on the species in question. Wildlifc movements generally are divided into three major behavioral categories: 1) movements within a home range or territory, 2) movements during migration, and 3) movements during dispersal. While no detailed study of animal movements has been conducted for the project area, knowledge of the site, its habitats, and the ecology of the species occurring on- site permits sufficient predictions about the types of movements occurring in the region and whether or not proposed development would constitute a significant impact to animal movements. The only habitat impacted by the proposed project is non-native ruderal grassland. While native wildlife may move through this habitat, it does not represent a significant movement corridor for native wildlife, as the site is surrounded by urban development. Therefore, the loss of this habitat would result in a less than significant impact on the movements of native wildlife. Special-Status Plant and Animal Species Special-Status Plant Species As discussed above, 25 special-status plant species occur in the project vicinity. None of the 25 special-status plant species, however, occurs on the site. Development of the proposed project would not result in significant impacts to special-status plant species, City of Cupertino Toll BrotherslCalabazas Place Project 55 Initial Study December 2005 Special-Status Animal Specie~' Thirteen of the 14 special-status animal species that could occur in the project vicinity are absent ¡rom or unlikely to occur on the project site. The one special- status animals species that would likely forage on the project site is the loggerhead shrike, As discussed above, no loggerhead shrikes or nests were observed on the site. While the site contains suitable foraging habitat for the shrike, it lacks their preferred nesting habitat. For this reason, the proposed project would not result in a significant impact on special-status species habitat. Disturbance to Active RaDtor Nests from Construction Activities While the proposed project would not result in significant impacts to habitat for any special-status species, impacts to individual raptors during the breeding season would be significant. Reconnaissance site surveys did not detect recent historic evidence of nesting raptors on the site, While this lack of evidence is sufficient to demonstrate the lack of recent nesting activity by raptors, the lack of evidence does not mean that raptors would not nest on the site in the near future. The trees on the site support potential habitat for tree nesting raptors. In addition, while the possibility that burrowing owls may colonize the site prior to construction is low, give the flat nature of the site and the presence of ground squirrel burrows on the site, there is a potential for owls to locate on the site at any time. Impact: The development of the proposed project could result in direct impacts to individual tree nesting raptors and burrowing owls. Mitigation and Avoidance Measures: The project proposes the following mitigation and avoidance measures to avoid impacts to individual nesting raptors, including hawks and burrowing owls: . A qualified biologist shall conduct pre-construction surveys for nesting raptors (including both tree and ground nesting raptors) on the site within 30 days prior to the onset of ground disturbance, if ground disturbance is to occur during the breeding season January I to August 31). Pre-construction surveys during the non-breeding season are not necessary for tree nesting raptors, as they will abandon their roosts during staging. These surveys shall be based on accepted protocols (e.g., as for the burrowing owl) for the target species, If a nesting raptor is found, an appropriate construction buffer shall be established. Actual size of the buffer would depend on the species, topography, and type of activity that would occur in the vicinity ofthe nest. . A qualified ornithologist shall conduct pre-construction surveys for burrowing owls during the non-breeding season to ensure owls remain absent from the site. If pre-staging surveys (conducted either during the breeding or non-breeding season) determine that burrowing owls occupy the site just prior City of Cupertino Toll BrotherslCalabazas Place Project 56 Initial Study December 2005 to staging, and the Director of Planning finds that avoiding development of occupied areas is not feasible, then the owls may be evicted outside of the breeding season, with the authorization of the California Department ofFish and Game (CDFG). The CDFG typically only allows eviction of owls outside the breeding season [only during the non-breeding season (September I - January 31)] by a qualified ornithologist, and generally requires habitat compensation on off-site mitigation lands, · A final report on nesting raptors and burrowing owls, including any protection measures, shall be completed to the satisfaction of the Director of Planning prior to start of grading, Disturbance to Bat Nursery Sites Bat surveys were conducted in September 2005 to determine if bats were present or absent from the project site. No bats were observed on-site. Even though bats are currently absent from the site, it is possible that a roost could be formed on-site prior to construction. Impact: Although currently absent from the site, the development of the proposed project could impacts to bat maternity colonies, Mitigation and Avoidance Measures: The project proposes the following mitigation measures to avoid impacts to nesting or roosting bats: · Pre-demolition bat surveys shall be conducted to determine if bats remain absent from the site, I f no bats are observed to be roosting in the existing office building or in the trees located on-site, no further action is required and demolition and tree removal can proceed. However, if bats are found to be roosting on the site, bats shall be excluded prior to demolition to ensure no harm or take would occur to any bats as a result of demolition activities. · In the event an active maternity colony of bats is found on the site, demolition shall occur after August 31 and before March I to avoid interfering with any active nursery. If a non-breeding bat hibernaculum is found in the buildings to be demolished, the individuals shall be safely evicted, under the direction of a qualified bat biologist, through a "partial dismantle" process, whereby the roosting area is opened to allow airflow through and sunlight into the buildings, making it unsuitable habitat and undesirable for the bats to return to the site. Demolition shall then follow no later than the following day (i.e., there shall be no less than one night between initial disturbance for airflow and the demolition). This action allows bats to leave during the night, thus increasing their chances of finding new roosts with a minimum of potential predation during daylight hours. · A final report on bats, including any protection measures, shall be submitted to the Director of Planning prior to start of grading. City of Cupertino Toll BrotherslCalabazas Place Project 57 Initial Study December 2005 Disturbance to Swallow Nesting Swallows are protected under the Migratory Bird Treaty Act, and they were observed flying over the site (adjacent to the creek), and it is possible that they nest under the overpass just north of the property, Destruction of or disturbance to active swallow nests during the breeding season (March 1 to July 31) would constitute a significant impact. Impact: The development of the proposed project could result in significant impacts to nesting swallows. Mitigation and Avoidance Measures: The project proposes the following mitigation and avoidance measures to reduce impacts to nesting wallows to a less than significant level: . If construction occurs outside of the nesting season, then no mitigation for swallows is needed and the impact would be less than significant. If construction occurs during the nesting season (March I through July 31), however, a pre-construction survey for nesting swallows (trees and building eaves) shall be conducted, If swallows are determined to be absent during the nesting season surveys, building demolition can proceed without further mitigation. If, however, swallows are determined to be present on-site, demolition of all structures or removal of trees (in the case of tree swallow presence) must be delayed until it has been determined that all young swallows have fledged. . A final report on nesting swallows, including any protection measures, shall be submitted to the Director of Planning prior to start of grading, CaJabazas Creek Potential Water Quality Impacts Calabazas Creek is located adjacent to the site, The eastern edge of the creek is approximately 50 linear feet from the property line, and is separated from the built- out portion of the project site by an access road under the jurisdiction of the SCVWD. Eventual site development, including removal of existing hardtop and grading would leave the soil of construction zones barren of vegetation and, therefore, vulnerable to sheet, rill, or gully erosion. Eroded soil is generally carried as sediment in surface runoff to be deposited in natural creek beds, canals, and adjacent wetlands. Furthermore, urban runoff is often polluted with grease, oil, pesticide and herbicide residues, and heavy metals, These pollutants may eventually be carried to sensitive wetland habitats used by a diversity of native wildlife species. The deposition of pollutants and sediments in sensitive riparian and wetland habitats would be considered a significant impact. City of Cupertino Toll Brothers/Calabazas Place Project 58 Initial Study December 2005 Impact: Construction of the proposed project could result in significant water quality impacts to Calabazas Creek and ultimately San Francisco Bay. Mitigation and Avoidance Measures: Mitigation measures listed in Section IVN Hydrology and Water Quality would reduce water quality impacts to a less than significant level. Specimen Trees Development of the proposed project would result in the removal of approximately 149 trees, including one dead Specimen Tree-tree number 126. Of the 149 trees to be removed, only two are native species, In addition, nine landscape trees located in the median on Finch Avenue will be removed. Also, the project proposes to relocate 14 trees including Canary Island date palms, coast redwoods, coast live oaks, and a Japanese maple (refer to Figure 16, tree numbers 18, 19,22,92-97, 100, 128, 169,2 I 2, and 222).7 The project proposes to implement a tree protection plan that would reduce construction related impacts to trees that are to be preserved, The tree protection plan is outlined in Appendix C and includes the following measures: Remove paving and curbing within the driplines of trees without significantly disturbing the soil directly beneath the paving (e.g., by removing small pieces of paving by hand or with a back hoe). Once paving and curbing is removed, erect protective fencing at the dripline of the trees. No grading, trenching, or surface scraping inside the driplines of protected trees, unless specifically approved by a certified arborist. This includes trenches for any utilities. Irrigate the preserved trees throughout the entire construction period during the dry months (any month receiving less than one inch of rainfall). Place mulch in the entire area inside the driplines of the preserved trees. Impact: The development of the proposed project would result in the removal of approximately 149 trees from the site, including one dead specimen tree (tree number 126), and nine street trees. Mitigation and Avoidance Measures: The project proposes the following mitigation measures to reduce impacts to trees to a less than significant level: . The project shall replace the 149 trees as specified in the Replacement Strategy section of the Addendum to Tree Survey Report included in Appendix C of this Initial Study. The Replacement Strategy section identifies specific replacement box tree sizes and quantities for each tree to be removed. 7 BKF. Calabazas Place Existing Tree Exhibit. Map,S Octoher 2005, City of Cupertino Toll BrotherslCalabazas Place Project 59 Initial Study December 2005 . A field grown valley oak shall be planted near the location of the large dead valley oak specimen tree (tree number 126) to be removed by the project.8 The transplanted valley oak planting shall be visible from Stevens Creek Boulevard. The location of the transplanted valley oak planting shall be reviewed and approved by the Director of Community Development. . If it is determined that the project site lacks sufficient areas to accommodate all of the replacement plantings, replacement tree plantings may be accommodated at an alternative site(s). Any alternatively proposed site shall be pursuant to agreement with the Director of Community Development. 3. Conclusion The proposed project, with the implementation of the mitigation measures above, would not result in significant impacts to biological resources. (Less Than Significant Impact with Mitigation Incorporated) · A field grown tree refers to a tree that is fully mature, City of Cupertino Toll BrotherslCalabazas Place Project 60 Initial Study December 2005 E. CULTURAL RESOURCES The following discussion is based upon an archaeological literature review and field inspection completed by Holman & Associates in April 200 I. A complete copy of this report is included as Appendix D of this Initial Study. 1. Settin!! Prehistoric Resources There are no recorded archeological sites or reported cultural resources located within or adjacent to the project area. No surficial evidence of cultural resources was discovered during the field inspection. A survey of the original alignment of Calabazas Creek was completed in 1974. The survey was restricted to the banks of the existing creek, therefore, the presence of absence of prehistoric material adjacent to the creek is unknown. It is unclear where the realigned and buried Calabazas Creek is located, and if archaeological materials were discovered during its excavation at some point over the past 20 years, Historic Resources No City, state, and/or federal historically or architecturally significant structures, landmarks, or points of interest are located at the project site. 2. Environmental Checklist and Discussion CULTURAL RESOURCES Less Than Potentially Significant Less Than Beneficial Information Significant With Significant No Impact Impact Source(s) Impact Mitigation Impact Incorporated Would the project: I) Cause a substantial adverse change 0 ~ 0 0 0 8 in the significance of an historical resource as defined in § 15064.5? 2) Cause a substantial adverse change 0 ~ 0 0 0 8 in the significance of an archaeological resource as defined in § 15064.5? 3) Directly or indirectly destroy a 0 0 ~ 0 0 8 unique paleontological resource or site, or unique geologic feature? 4) Disturb any human remains, 0 0 ~ 0 0 8 including those interred outside of formal cemeteries? City of Cupertino Toll BrotherslCalabazas Place Project 61 Initial Study December 2005 Discussion: The proposed project includes the construction of several hundred residential units, commercial uses, open space, and underground parking. The project proposes to excavate approximately II feet below grade for underground parking. Prehistoric and Historic Resources Development throughout the Santa Clara Valley adjacent to established water courses, has uncovered numerous buried archaeological sites, While no prehistoric or historic archaeological materials were discovered during the field inspection, prehistoric materials associated with aboriginal settlements along Calabazas Creek could be encountered during site grading and/or excavation, As mentioned above, there are no historic structures located on the site. However, there is a potential for the buried historical archaeological resources on the east bank of Calabazas Creek, north of Stevens Creek Boulevard. While the limited archival research done to date has not established the type of construction existing at this location since the late 1800s, the landscaping remnants suggest that there was both a residential complex and some sort of farming support facility. Both these resources could contain buried archaeological deposits (dumps, filled in wells, privy pits, and cellars) which could provide invaluable in filling out the history of this site, its inhabitants, and the role it played in the development of the City. Impact: Development of the proposed project may impact buried cultural resources. Mitigation and Avoidance Measures: The project proposes the following mitigation measures to reduce impacts to cultural resources to a less than significant level: · A program of archaeological monitoring shall be adopted for portions of the project site that require deep excavation for foundations and/or underground parking facilities. Monitoring shall be done at the discretion of a qualified archaeologist until it is evident that additional earthmoving will not affect either prehistoric or historic deposits. · In the event of the discovery of either prehistoric or historic archaeological deposits, work shall be halted within 50 feet of the discovery and a qualified professional archaeologist shall examine the find and make appropriate recommendations regarding the significance of the find and the appropriate mitigation, The recommendation shall be implemented and could include collection, recordation, and analysis of any significant cultural materials. · In the event that human remains and/or cultural materials are found, all project-related construction shall cease within a 50-foot radius of the find in order to proceed with the testing and mitigation measures required. Pursuant to Section 7050.5 of the Health and Safety Code and Section 5097.94 ofthe Public Resources Code of the State of California: City of Cupertino Toll BrotherslCalabazas Place Project 62 Initial Study December 2005 a. In the event of the discovery of human remains during construction, there shall be no further excavation or disturbance of the site or any nearby area reasonably suspected to overlie adjacent remains. The Santa Clara County Coroner shall be notj fied and shall make a determination as to whether the remains are Native American. If the Coroner determines that the remains are not subject to his authority, he shall notify the Native American Heritage Commission who shall attempt to identify descendants of the deceased Native American. If no satisfactory agreement can be reached as to the disposition of the remains pursuant to this State law, then the land owner shall re-inter the human remains and items associated with Native American burials on the property in a location not subject to further subsurface disturbance. b. A final report shall be submitted to the Director of Planning. This report shall contain a description of the mitigation program that was implemented and its results, including a description of the monitoring and testing program, a list of the resources found, a summary of the resources analysis methodology and conclusion, and a description of the disposition/curation of the resources. The report shall verify completion of the mitigation program to the satisfaction of the Director of Planning. 3. Conclusion With the implementation of the above mitigation measures, the proposed project would not result in significant impacts to cultural resources. (Less Than Significant Impact with Mitigation Incorporated) City of Cupertino Toll Brothers/Calabazas Place Project 63 Initial Study December 2005 F. GEOLOGY AND SOILS The following discussion is based upon a preliminary geotechnical assessment completed by ENGEO Incorporated in April 2004, This assessment analyzes how the environmental and geological conditions of the site could potentially affect future development and occupancy of the site. The complete report is included as Appendix E of this Initial Study. I. Settin!! Regional Geology The City of Cupertino is located on the San Francisco Peninsula. Most of Cupertino is on level ground that rises gently to the west. The incline increases at the channel of Stevens Creek, forming a short plateau near Foothill Boulevard. The plateau ends at the foot of the steep Montebello system of ridges, which extends along the west and south edges of Cupertino, creating a backdrop to the valley floor. On-Site Geologic Conditions Historically, Calabazas Creek, flowing from south to north, meandered across the site, Historic topographic maps indicate that creek channel banks ranged from approximately 15 to 25 feet deep, Around 1978, the creek was realigned to flow through the southern portion of the site, between Stevens Creek Boulevard and Vallco Parkway, through a double-box concrete culvert and then continue north as an open channel, which defines the western site boundary adjacent to the existing industrial office building, It is believed that the underground culvert follows the Santa Clara Valley Water District (SCVWD) easement, which parallels Finch A venue, The project site is relatively level and is situated at an elevation of approximately 180 feet above mean sea level. A variable-height slope borders the northeastern portion of the site associated with a ramp leading up to 1-280. A downslope occurs off the western side of the northern portion of the site, associated with the Calabazas Creek bank, and is approximately 15 feet in height and inclined at about 2:1 (horizontal: vertical) or flatter, with a maintenance access road situated approximately six feet below the elevation of the site, off site on the creek bank. Other minor upslopes and downs lopes occur within or around the project site boundaries. Soils According to the State of California, Division of Mines and Geology, the soils on the project site are old and young alluvial fan deposits (Qof and Qyf). These soils are highly variable with mixtures of fine-grained sand, silt and clay, and minor gravel. A field exploration of the project site was completed in April 2004. According to the field exploration and previous studies completed in 1980 and 2000, the soils beneath the site appear to consist generally of clayey material up to approximately 30 to 40 feet below the ground surface. The clay appears to range from medium stiff to hard. Below the clay, the material grades into a very dense over consolidated material. City of Cupertino Toll BrotherslCalabazas Place Project 64 Initial Study December 2005 At least two areas of the project site consist of fill. These areas include the former, natural Calabazas Creek alignment and a zone identified roughly under the existing industrial office building within the upper two to seven feet of the ground surface. The soils on the site could exhibit a moderate to high expansion potential. Expansive soils shrink and swell as a result of moisture changes, These changes can cause heaving and cracking of slab-on-grade, pavements and structures founded on shallow foundations. Seismicity The project site is not located within a State of California Earthquake Fault Hazard Zone, and no known faults cross the site, Therefore, ground rupture is not likely to occur at the site. However, as with most of the Greater Bay Area, the project site is situated within a seismically active region, Nearby active or potentially active faults include the Monte Vista-Shannon fault, located approximately 3.7 miles southwest of the site, the San Andreas (Peninsula segment) fault, located approximately 6.5 miles southwest of the site, and the Hayward fault (southeast extension), located approximately 10,8 miles northeast of the site, Because of the proximity of the project site to these faults, any ground shaking, ground failure, or liquefaction due to an earthquake could cause damage to structures. Liquefaction Liquefaction is the result of seismic activity and is characterized as the transformation of loosely water-saturated soils from a solid state to a liquid state after ground shaking. There are many variables that contribute to liquefaction, including the age of the soil, soil type, soil cohesion, soil density, and groundwater level. Maps prepared by the Association of Bay Area Governments (A BAG, 200 I) indicate that the site has a moderate potential for liquefaction. However, based on the specific type of on-site soils and the fact that groundwater was not encountered 50 feet below ground surface, liquefaction potential on the site is considered low. Densification Due to Earthquake Shaking Densification of the sandy soils above and below groundwater levels can result in settlement/densification during an earthquake. Due to the medium dense to dense nature in the granular zones encountered at the site and the low liquefaction potential, potential for earthquake-induced densification is low. Lateral Spreading Lateral spreading can occur in weaker soils near slopes and adjacent to open channels that are subjected to strong ground shaking during an earthquake. Although the Calabazas Creek borders the western boundary of the northern portion of the project site, the graded slope bank is relatively low, approximately 15 feet high, well- vegetated and inclined at a gradient of2: I or flatter, A mid-slope access road is also City of Cupertino Toll BrotherslCalabazas Place Project 65 Initial Study December 2005 present along the slope bank, Based on these observations and the low liquefaction potential, the potential for lateral spreading at the site is low. 2. Environmental Checklist and Discussion GEOLOGY AND SOILS Less Than Potentially Significant Less Than Beneficial Infannalion Significant With Significant No Impact Impact Source(s) Impact Mitigation Impact Incorporated Would the project: 1) Expose people or structures to potential substantial adverse effects. including the risk of loss, injury, or death involving: a) Rupture of a known earthquake 0 0 0 ~ 0 9 fault, as described on the most recent Alquist-Priolo Earthquake Fault Zoning Map issued by the State Geologist for the area or based on other substantial evidence of a known fault? (Refer to Division of Mines and Geology Special Publication 42,) b) Strong seismic ground shaking? 0 0 ~ 0 0 9 c) Seismic-related ground failure, 0 0 ~ 0 0 9 including liquefaction? d) Landslides? 0 0 0 ~ 0 9 2) Result in substantial soil erosion or 0 0 ~ 0 0 9 the loss of topsoil? 3) Be located on a geologic unit or 0 0 ~ 0 0 9 soil that is unstable, or that would become unstable as a result of the project, and potentially result in on- or off-site landslide, lateral spreading, subsidence. liquefaction or collapse? 4) Be located on expansive soi I, as 0 0 ~ 0 0 9 defined in Table 18-I-B of the Uniform Building Code (1994), creating substantial risks to life or property? 5) Have soils incapable of adequately 0 0 0 ~ 0 9 supporting the use of septic tanks or alternative wastewater disposal systems where sewers are not available for the disposal of wastewater? City 0 f Cupertino Toll BrotherslCalabazas Place Project 66 Initial Study December 2005 Discussion: Soils Conditions and Erosion Potential The project site includes moderate to highly expansive soils, which may expand and contract as a result of seasonal or man-made soil moisture conditions. Expansive soil conditions could damage future buildings on the site, which would represent a significant impact unless substantial damage is avoided by incorporating appropriate engineering into grading and foundation design. The proposed project would not be exposed to slope instability or landslide-related hazards, due to the flat topography of the site. None of the proposed buildings would be located over the existing Calabazas Creek culvert (near Finch Avenue). Landscaping and parking spaces are proposed on top of the culvert along Finch A venue (refer to Figure 5). Fill materials that could affect foundations were noted on the site. Mitigation and Avoidance Measures: In conformance with standard practices in the City of Cupertino, the project proposes to implement the recommendations included in the preliminary geotechnical assessment completed for this site to avoid or reduce possible adverse effects associated with soil conditions to a less than significant level (refer to Appendix E), These recommendations include the following: . Buildings shall be designated and constructed in accordance with a final design-level geotechnical investigation to be prepared for the site, which identifies the specific design features that will be required for the project, including site preparation, removal and/or replacement of existing fill, compaction, trench excavations, foundation and subgrade design, drainage, and pavement design, The geotechnical investigation shall be reviewed and approved by the City Public Works Department prior to issuance of a building permit for the project. . The project shall implement standard grading and best management practices to prevent substantial erosion and siltation during development of the site. Seismicity and Seismic Hazards As previously discussed, the project site is located in a seismically active region and, therefore, strong ground shaking would be expected during the lifetime of the proposed project, While no active faults are known to cross the project site, ground shaking on the site could damage buildings and other proposed structures. The liquefaction and ground failure potential on the site are low, Mitigation and Avoidance Measures: The project includes the following standard measure to avoid or reduce seismic related hazard impacts to a less than significant level: City of Cupertino Toll BrotherslCalahazas Place Project 67 Initial Study December 2005 · The project shall be designed and constructed in conformance with the Uniform Building Code guidelines for Seismic Zone 4 to avoid or minimize potential damage from seismic shaking and seismic-related hazards on the site, 3. Conclusion Development of the proposed project would not result in significant geological impacts. (Less Than Significant Impact) City of Cupertino Toll BrotherslCalahazas Place Project 68 Initial Study December 2005 G. HAZARDS AND HAZARDOUS MATERIALS The following discussion is based upon an environmental site assessment completed for the project by ENGEO Incorporated (April 2004), The purpose of the environmental site assessment was to identify potential sources of hazardous materials at the site and to assess their potential to impact the project. The assessment also included a review of previously prepared environmental reports for the project site, a regulatory database search for any known or suspected hazardous materials or waste problems on the site or in the vicinity of the site, and a reconnaissance survey of the site, A complete copy of the environmental assessment completed by ENGEO, which includes summaries of the two other assessments, is included as Appendix F of this Initial Study. I. Settin!! Background Information Hazardous materials are commonly used by large institutions, commercial, and industrial businesses, Hazardous materials include a broad range of common substances such as motor oil and fuel, pesticides, detergents, paint, and solvents. A substance may be considered hazardous if, due to its chemical and/or physical properties, it poses a substantial hazard when it is improperly treated, stored, transported, disposed of, or released into the atmosphere in the event of an accident. Site Conditions The northern portion of the site contains an unoccupied two-story office building, associated parking, a tennis court, and landscape trees. A backup generator, above- ground diesel storage tank, and an electrical transformer are located on a concrete pad near the northeastern corner of the building. In front of the generator is a concrete chiller pad surrounded by a chain-link fence, The southern portion of the site contains low-lying grasses, some areas of remnant parking, bare ground, and various trees, Sensitive receptors located near the site include residents, approximately 170 feet south of the project site, and Cupertino High School located approximately 0.2 miles south of the project site, On-Site Observations A site reconnaissance survey was completed for the project site in April 2004 for evidence of hazardous materials storage, surficial staining or discoloration, debris, stressed vegetation, or other conditions which may be indicative of potential sources of soil or groundwater contamination, The project site was also inspected for fill/ventilation pipes, ground subsidence, or other evidence of existing or preexisting underground storage tanks. No hazardous materials, petroleum products, odors indicative of hazardous materials or petroleum material impacts, pools of potentially hazardous liquid, City of Cupertino Toll BrotherslCalabazas Place Project 69 Initial Study December 2005 pit/pond/lagoons, wastewater systems, wells, areas of stained soil or pavement, or stressed vegetation were observed on the site, No other hazardous substances or petroleum product containers were observed, except for the above-ground diesel storage tank adjacent to the emergency generator located near the northeast corner of the existing building, One 55-gallon drum filled with an unidentifiable liquid was observed within a trash enclosure near the existing tennis courts. No apparent release of the unidentifiable liquid was evident. A pad-mounted electrical transformer was observed in the vicinity of the existing building, No leaking or staining was observed at or near the transformer. A small pile of concrete debris and soil was observed on the western portion of the site, Historical Site Condition Based on historical records and historical aerial photos, the project site was used for agricultural purposes up until 1980. In 1978, Calabazas Creek was rerouted to the current location and the on-site office building was completed after 1980. Potential On-Site Sources of Contamination Hazardous Substances and Petroleum Product Impacts According to a previous site assessment completed in February 2004 by SECOR, hazardous materials or petroleum substances that were stored on-site had been properly removed and a closure permit was issued by the Santa Clara County Fire Department (SCFD). The mechanical room, which housed the hazardous materials, had no indication of spills or releases, The above-ground storage tank (AST) containing diesel fuel was observed to have minor staining on the underlying concrete pad. The concrete chiller pad had no indications of staining. Asbestos-Containing Materials and Lead-Based Paint Due to the age of the building on the site, asbestos-containing materials (ACMs) may be present. A previous ACM survey identified small amounts of asbestos in the glue used for the bathroom floor tiles of the existing building. ACMs are of concern because exposure to ACMs has been linked to cancer, ACMs are defined by the EP A as materials containing more than one percent (1%) asbestos. Title 8, Section 1529, of the California Code of Regulations (CCR), however, defines asbestos-containing construction material (ACCM) as any manufactured construction material which contains more than one-tenth of one percent (0.10%) asbestos by weight. Lead-based paint is of concern, both as a source of direct exposure through ingestion of paint chips and as a contributor to lead interior dust and exterior soil. Lead was widely used as a major ingredient in most oil-based paints prior to 1950. In 1978, the Consumer Product Safety Commission banned the use of lead as an additive in paint. Based on the age of the buildings, lead-based paint may also be present on the site. City of Cupertino Toll BrotherslCalabazas Place Project 70 Initial Study December 2005 Radon Risks The US Environmental Protection Agency (USEPA) and the California Environmental Protection Agency (CaIEPA) have conducted studies of radon risks throughout the state. Results of the studies indicate that the average statistical radon concentrations in Santa Clara County are less than the current EP A action level. Agricultural Use Impacts Because of past agricultural uses on the site, shallow soil testing was conducted in December 2000 to test for residual pesticides and metals in the near-surface soil. Concentrations of lead, arsenic, and mercury, DDT, DDE, and DDD were detected in the on-site soils. Additional near-surface soil samples were collected and analyzed in April 2004. The analysis results showed no detectable concentrations of organochlorine pesticides above reporting limits or above the EPA Preliminary Remediation Goals (PRG) and the San Francisco Bay Regional Water Quality Control Board (R WQCB) direct exposure screening scenarios for shallow residential soils. Reported concentrations of lead, arsenic, and mercury are consistent with background soil concentrations for the State of California. The project site does not appear to have been significantly impacted from past agricultural practices. Regulatory Database Search A database search was undertaken for the project site in April 2004 for the purpose of identifying all sites within the project area where there are known or suspected sources of contamination, as well as sites that handle or store hazardous materials. Federal, state, local. historical, and Brownfield databases were searched. The databases searched and results are present in Appendix F of this Initial Study. The project site was not listed on any of the databases searched. Potential Off-Site Sources of Contamination Based on the information obtained from the database search, various facilities in the vicinity of the site were reported as hazardous materials users. Details regarding the facilities listed are included in Appendix F of this Initial Study. Based on the type of release, current case status, direction of groundwater flow, and/or distance from the project site, past or future accidental releases from these facilities are not expected to significantly impact the project site, or impair its suitability for the uses proposed. Other Hazards The project site is not located within two miles of an airport or within the Santa Clara County Airport Land Use Commission CALUC) jurisdiction safety zone. The site, within a highly developed area of Cupertino, is also not located within an area subject to wildfires. City of Cupertino Toll BrotherslCalabazas Place Project 71 Initial Study December 2005 2. Environmental Checklist and Discussion HAZARDS AND HAZARDOUS MATERIALS Less Than Potentially Significant Less Than Beneficial Infonnation Significant With Significant No Impact Impact Source(s) Impact Mitigation Impact Incorporated Would the project: I) Create a significant hazard to the 0 0 ~ 0 0 I public or the environment through the routine transport, use, or disposal of hazardous materials? 2) Create a significant hazard to the 0 0 ~ 0 0 I public or the environment through reasonably foreseeable upset and accident conditions involving the release of hazardous materials into the environment? 3) Emit hazardous emissions or 0 0 ~ 0 0 1,10 handle hazardous or acutely hazardous materials, substances, or waste within one-quarter mile of an existing or proposed school? 4) Be located on a site which is 0 0 0 ~ 0 10 included on a list of hazardous materials sites compiled pursuant to Government Code Section 65962,5 and, as a result, would it create a significant hazard to the public or the environment? 5) For a project located within an 0 0 0 ~ 0 I airport land use plan or, where such a plan has not been adopted, within two miles of a public airport or public use airport, would the project result in a safety hazard for people residing or working in the project area? 6) For a project within the vicinity of 0 0 0 ~ 0 I a private airstrip, would the project result in a safety hazard for people residing or working in the project area? 7) Impair implementation of, or 0 0 ~ 0 0 1,2 physically interfere with, an adopted emergency response plan or emergencv evacuation plan? City of Cupertino Toll BrotherslCalabazas Place Project 72 Initial Study December 2005 HAZARDS AND HAZARDOUS MATERIALS Less Than Potentially Significant Less Than Beneficial nfoonation Significant With Significant No impact Impact Source( s) Impact Mitigation Impact IncorPorated Would the project: 8) Expose people or structures to a 0 0 0 ~ 0 I significant risk ofloss, injury or death involving wildland fires, including where wildlands are adjacent to urbanized areas or where residences are intermixed with wildlands? Discussion: Potential On-Site Sources of Contamination Hazardous Substances and Petroleum Product Impacts Based on the data obtained and reviewed, it is concluded that there are no hazardous substances or petroleum products on the property that indicate an existing release, a past release, or a material threat of a release of any hazardous substances or petroleum products into structures on the property or into the ground, groundwater, or surface water of the property. Mitigation and Avoidance Measures: The project includes the following measures to avoid impacts from possible on-site sources of contamination that maybe obscured by existing buildings, pavement, or landscaping: . The project site shall be reviewed by an environmental professional during future site demolition and pregrading activities. Any storage tanks, wells, drums, and debris shall be removed under the guidance of a qualified environmental professional and in accordance with the Santa Clara County Fire Department requirements for above ground fuel tank removal. ACMs and Lead-Based Paint As mentioned above, the glue in the bathrooms of the existing office building contain ACMs, Due to the age of the on-site building, ACMs may be present elsewhere in the existing building. Since demolition of the existing office building would be part of the project, National Emissions Standards for Hazardous Air Pollutants (NESHAP) guidelines require that all potentially friable ACMs be removed prior to building demolition or renovation that may disturb the ACMs. Demolition of the existing building, which may contain lead-based paint, could create lead-based dust at concentrations which would expose workers and nearby receptors to potential health risks, State regulations require that air monitoring be performed during renovation or demolition activities at sites containing lead-based paint. If lead-based paint is determined to be present and is peeling, flaking, or blistered, it City of Cupertino Toll BrotherslCalabazas Place Project 73 Initial Study December 2005 would need to be removed prior to demolition. It is assumed that such paint will become separated from the building components during demolition activities and must be managed and disposed of as a separate waste stream. If the lead based paint is still bonded to the building materials, its removal is not required prior to demolition. Mitigation and Avoidance Measures: The project proposes to conform with the following regulatory programs and to implement the following mitigation measures to avoid and reduce potential impacts due to the presence of ACMs and/or lead-based paint to a less than significant level: · As appropriate, a lead survey of painted surfaces and soil around the buildings built prior to 1978 shall be performed prior to demolition. Requirements outlined by Cal/OSHA Lead in Construction Standard, Title 8, CCR 1532.1 would be followed during demolition activities, including employee training, employee air monitoring, and dust control. Any debris or soil containing lead-based paint or coatings shall be disposed of at landfills that meet acceptance criteria for the waste being disposed. · All potentially friable ACMs shall be removed in accordance with NESHAP guidelines prior to building demolition or renovation that may disturb the materials, All demolition activities shall be undertaken in accordance with OSHA standards contained in Title 8 of the CCR, Section 1529, to protect workers from exposure to asbestos. Specific measures could include air monitoring during demolition and the use of vacuum extraction for asbestos- containing materials, · A registered asbestos abatement contractor shall be retained to remove and dispose of ACMs identified in the asbestos survey performed for the site in accordance with the standards stated above. · Materials containing more than one (1) percent asbestos are also subject to BAAQMD regulations. Removal of materials containing more than one (I) percent asbestos shall be completed in accordance with BAAQMD requirements. Potential Off-Site Sources of Contamination Based on the information obtained from the database search, several facilities in the vicinity of the site are hazardous materials users. Based on the previous types of releases, current case status, distances, and direction from the site, no hazardous materials incidents have been reported that would be likely to significantly impact the project site. City of Cupertino Toll BrotherslCalabazas Place Project 74 Initial Study December 2005 3. Conclusion The proposed project would not result in significant hazardous materials impacts. (Less Than Significant Impact) City of Cupertino Toll BrotherslCalabazas Place Project 75 Initial Study December 2005 H. HYDROLOGY AND WATER QUALITY 1. Settin!! Hydrology and Drainage The project site is located within the Calabazas Creek watershed. Calabazas Creek collects surface runoff and conveys it to San Francisco Bay. Calabazas Creek runs along the western boundary of the northern portion of the project site and underneath the southern portion of the project site in a double box culvert (refer to Figures 4 and 5), The northern portion of the project site is developed. Approximately 7.6 acres of the site is impervious. Most of the project site, however, is undeveloped and unpaved. Approximately 17,85 acres of the project site consists of pervious surfaces. Runoff from the site is currently conveyed to four storm drain systems, which consist of storm drain lines located in the northern portion of the project site (parallel to 1-280), western portion of the project site (parallel to Tantau Avenue), Vallco Parkway, Stevens Creek Boulevard, and Finch Avenue. The storm drain lines range from 10- inches to 30-inches in size, Currently, two of the storm drain systems, one located in the northern and western portion of the project site and the other in Vallco Parkway and Finch A venue, are over capacity, Under existing conditions, during peak runoff from a 10-year storm event, the project site would generate approximately 23 cubic feet per second (cfs) ofrunoff.9 Flooding According to the Federal Emergency Management Agency's (FEMA) Flood Insurance Rate Map, the site is located within Zone B, which is defined as an area between limits of the I OO-year flood and 500-year flood; or certain areas subject to 100-year flooding with average depths less than one (I) foot or where the contributing drainage area is less than one square mile; or areas protected by levees from the base flood,'o Calabazas Creek is identified as being located within Zone A4, which is defined as an area of 100-year flood. For the portion of Calabazas Creek located adjacent and underneath the project site, however, a I OO-year flood would be contained in culverts," 9 Nguyen, Thanh. BKF Engineers. written communications (Email) to David J, Powers & Associates, Inc, 29 November 2005, 10 Federal Emergency Management Agency. Flood Insurance Rate Map. Community-Panel Number 0603390004 C. ] May 1980. "Ibid, City of Cupertino Toll BrotherslCalahazas Place Project 76 Initial Study December 2005 The project site is not located within a dam failure inundation area,l2 Water Quality The water quality of streams, creeks, ponds, and other surface water bodies can be greatly affected by pollution carried in contaminated surface runoff. Pollutants from unidentified sources, known as "non-point" source pollutants, are washed from streets, construction sites, parking lots, and other exposed surfaces into storm drains. Surface runoff from the road is collected by storm drains and discharged into Calabazas Creek. The runoff often contains contaminants such as oil and grease, plant and animal debris (e.g., leaves, dust, and animal feces), pesticides, litter, and heavy metals. In sufficient concentration, these pollutants have been found to adversely affect the aquatic habitats to which they drain, Regulatory Requirements The major federal legislation governing water quality is the Clean Water Act, as amended by the Water Quality Act of 1987, The USEPA is the federal agency responsible for water quality management nationwide, The State of California's Porter-Cologne Water Quality Control Act provides the basis for water quality regulation within California; the Act assigns primary responsibility for the protection and enhancement of water quality to the State Water Resources Control Board (SWRCB), and the nine regional water quality control boards. The SWRCB provides state-level coordination of the water quality control program by cstablishing state-wide policies and plans for the implementation of state and federal laws and regulations, The City of Cupertino is within the jurisdiction of San Francisco Bay Regional Water Quality Control Board (R WQCB). The State Water Resources Control Board has implemented a National Pollution Discharge Elimination System (NPDES) general construction permit for the Santa Clara Valley. For properties of one (1) or more acres, a Notice ofIntent (NOI) and Storm Water Pollution Prevention Plan (SWPPP) must be prepared prior to commencement of construction, Construction activity subject to this permit includes clearing, grading, and disturbances to the ground such as stockpiling or excavation. Subsequent to implementation of the general construction permit, the San Francisco Bay R WQCB issued a Municipal Storm Water NPDES Permit to the municipalities in Santa Clara Valley, the County of Santa Clara, and the Santa Clara Valley Water District (SCVWD) as co-permittees. The Santa Clara Valley Urban Runoff Prevention Program (SCVURPPP) assists the co-permittees in implementing the provisions of this permit. In October 200 I and subsequently in July 2005, the R WQCB approved amendments to the NPDES Permit Number CAS 029718, Provision C.3, The amendments to Provision C.3 include new storm water discharge requirements for new development and redevelopment within the boundaries of the 15 jurisdictions/co-permittees that 12 Association of Bay Area Govemments, Dam Failure Inundation Hazard MaD for CUDertino, 20 October 2003, ABAG, 19 September 2005. httD:l/www.abag.ca.govlcgi-binIDickdamx.DI. City of Cupertino Toll BrotherslCalabazas Place Project 77 Initial Study December 2005 constitute SCVURPPP, including the City of Cupertino, that create, add, or replace one acre or more of impervious surtàce area. These projects are subject to implementation of appropriate source controls and site design measures to reduce the discharge of storm water pollutants to the maximum extent practicable. Under the Hydromodification Report approved by the R WQCB in July 2005, the project site is located within a subwatershed with 65-70 percent impervious surfaces and greater than or equal to 90 percent buildout. Therefore, further urban infill or redevelopment projects in this area are not subject to hydromodification controls to meet operation and maintenance requirements of Provision C.3. 2. Environmental Checklist and Discussion HYDROLOGY AND WATER QUALITY Less Than Potentially Significant Less Than Beneficial nfoonation Significant With Significant No Impact Impact Source(s) Impact Mitigation Impact Incornorated Would the project: I) Violate any water quality standards 0 0 I3J 0 0 1,2 or waste discharge requirements? 2) Substantially deplete groundwater 0 0 0 I3J 0 1 supplies or interfere substantially with groundwater recharge such that there would be a net deficit in aquifer volume or a lowering of the local groundwater table level (e,g" the production rate of pre-existing nearby wells would drop to a level which would not support existing land uses or planned uses for which permits have been granted)? 3) Substantially alter the existing 0 0 I3J 0 0 I drainage panern of the site or area, including through the alteration of the course of a stream or river, in a manner which would result in substantial erosion or siltation on- or off-site? 4) Substantially alter the existing 0 I3J 0 0 0 I drainage panern of the site or area, including through the alteration of the course of a stream or river, or substantially increase the rate or amount of surface runoff in a manner which would result in flooding on-or off-site? City of Cupertino Toll BrotherslCalabazas Place Project 78 Initial Study December 2005 HYDROLOGY AND WATER QUALITY Less Than Potentially Significant Less Than Beneficial Information Signiticant With Signitïcant No Impact Impact Source(s) Impact Mitigation Impact Incorporated Would the project: 5) Create or contribute runoff water 0 ~ 0 0 0 1,2 which would exceed the capacity of existing or planned storm water drainage systems or provide substantial additional sources of polluted runoff? 6) Otherwise substantially degrade 0 0 ~ 0 0 1 water quality? 7) Place housing within a 100-year 0 0 0 ~ 0 12 flood hazard area as mapped on a Federal Flood Hazard Boundary or Flood Insurance Rate Map or other flood hazard delineation map? 8) Place within a 100-year flood 0 0 0 ~ 0 12 hazard area structures which would impede or redirect flood flows? 9) Expose people or structures to a 0 0 0 ~ 0 1,2 significant risk of loss, injury, or death involving flooding, including flooding as a result of the failure of a levee or dam? 10) Be subject to inundation by seiche. 0 0 0 ~ 0 1,2 tsunami, or mudtlow? Discussion: Hydrology and Drainage The following discussion is based upon a storm drain capacity study by BKF Engineers.I3 At buildout, approximately 18 acres of the project site would be covered with impervious surfaces, This would be a net increase of approximately 10.4 acres of impervious surfaces. The increase in impervious surfaces would result in a corresponding increase in storm water runoff form the project site, During a 10-year storm event, peak runoff would increase from approximately 23 cfs under existing conditions to approximately 34 cfs under project conditions,I4 As mentioned previously, two storm drain systems, one located in the northern and western portion of the project site and the other in Vallco Parkway and Finch 13 BKF Engineers, Calabazas Place. Cuoertino. Existing Storm Drain and Sanitary Sewer Caoacity Studv, 27 October 2005, 14 Nguyen, Thanh, BKF Engineers, written communications (Email) to David j, Powers & Associates, Inc. 29 November 2005, City of Cupertino Toll BrotherslCalabazas Place Project 79 Initial Study December 2005 Avenue, serving the project site are over capacity. The project proposes to divert stormwater runoff from some areas of the site from storm drain lines that are over design capacity to storm drain lines in Finch Avenue that are under capacity. The project also proposes two, 24-inch storm drain connections to the existing Calabazas Creek culvert. With the proposed diversion of storm water runoff from storm drain lines that are over capacity to under utilized (or under capacity) storm drain lines and the existing underground creek culvert, the proposed project would not exceed the capacity of the existing storm drain system (refer to Appendix G).IS Due to the relatively flat topography of the project site, future development on the project site is not expected to be exposed to erosion or siltation hazards. Flooding The project site is not located in a 100-year flood hazard area and therefore, would not place housing or structures within a I OO-year flood area. Water Quality Construction Related Impacts Construction of the proposed development, as well as grading and excavation activities, may result in temporary impacts to surface water quality. Project grading and construction activities would affect the water quality of storm water surface runoff. Construction of the proposed buildings and paving of streets, pathways, and parking lots would also result in a disturbance to the underlying soils, thereby increasing the potential for sedimentation and erosion. When disturbance to underlying soils occurs, the surface runoff that flows across the site may contain sediments that are ultimately discharged into the storm drainage system. Post-Construction Impacts The amount of impervious surfaces on the site, such as buildings and paved areas, would increase by approximately 10.4 acres. The amount of pollution carried by runoff from buildings and pavement, therefore, would also increase accordingly. The project would increase traffic and human activity on and around the site, generating more pollutants and increasing dust, litter, and other contaminants that would be washed into the storm drain system. The project would therefore, generate increases in water contaminants which could be carried downstream in storm water runoff from paved surfaces on the site, Storm water from urban uses contains metals, pesticides, herbicides, and other contaminants such as oil, grease, lead, and animal waste. Runoff from the proposed project may contain increased oil and grease from parked vehicles, as well as sediment and chemicals (i.e., fertilizers and pesticides) from the landscaped areas. " BKF Engineers, Calahazas Place. Cupertino. Existing Storm Drain and Sanitarv Sewer Capacity Studv, 27 October 2005, City of Cupertino Toll BrotherslCalahazas Place Project 80 Initial Study December 2005 3. 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(VOLUUE BASED) . - ·.2· - - . ·1, 1ti?11O '. .. ~...~. ~;? ..;; ~ '., db ='=> ,.. =!., r_ 1--1" '" : .."INfiLTRATION PlANTER . - , - :: - .' ó' -: fi~· , -"·I·"~··· . . . . , 1IIIIInll·.lllnlll·III, ~~ "~~t+ II· L l _,....,.:....(V.OLUUEBASED) - -- " I .'~·I ' ... 11111'" IUJlJJU.1.UJ) r ~,..,~. r+-,. ~ r.i--c", ~ , -. " _ ') STORU WATER - _-::: 41 lit .-.- lfTTTT1fTTTr8" -- . CIIICEl- _ _I _ ~ L..~ - '. i!~_jr~"CJ ~:~~..~ TREATWENT DEVICE m , . - -.' ;-;;'~ _ _ _ -7')~;7 _ _c'. FLOW BASED) .L.-'__ ~-Mi ;;:-, .111111111111111 _:" _ _ ' -~_ _. _._~_"~-_:~- _"__- _~_. ~-,..,:,~c~,--- -~~~~~¿~~~~~- . - - .- , CONDO OPTION B PROPOSED STORM WATER CONTROL PLAN .. I. LAND USE 1. Settin!! Existing Land Use The 25.4-acre project site is comprised offour parcels (APNs: 316-20-074,316-20- 078,316-20-0179, and 316-20-085). Currently, the northern portion of the project site consists of an unoccupied 150,000 square foot office building, a tennis court, satellite dish, backup generator, above-ground diesel storage tank, electrical transformer, and surface parking. Most of the southern portion of the site is undeveloped and unpaved. The west side of the southern portion of the project site consists of a paved parking lot. Surrounding Land Uses The project site is bounded by 1-280 to the north, Tantau Avenue to the east, Stevens Creek Boulevard to the south, and Calabazas Creek to the west of the northern portion of the project site (refer to Figure 3). Calabazas Creek is not currently accessible from the project site. Mixed residential and commercial developments (one not yet built and the second under construction) are adjacent to the western boundary of the project site, south of Vall co Parkway. A large, two-story shopping mall is also located to the west of the project site. A two-story office building is located to the west of the project site, west of Calabazas Creek, and another two-story office building is located to the east of the project site, east ofTantau Avenue, A commercial strip mall is located south of the project site, on the other side of Stevens Creek Boulevard, which is a six lane arterial. The commercial buildings are one to two stories in height. A three-story apartment complex located above on-grade parking is also located along Stevens Creek Boulevard, south of the project site. Single-family residents are located south of the commercial strip mall (refer to Figure 3), Land Use Plans City of Cupertino General Plan Land Use Map The project site is designated as Commercial/Office/Residential on the City's General Plan Land Use Map and located within the Val/co Park South planning area. The Commercial/Office/Residential designation applies to mixed use areas that ace predominantly commercial and office uses. Supporting residential uses may be allowed when they are compatible with the primarily non-residential character of the area. The maximum building height allowed within the Val/co Park South planning area is 35 feet. Residential densities are not specified because of the flexibility City of Cupertino Toll BrotherslCalabazas Place Project 86 Initial Study December 2005 needed to develop residential uses in primarily non-residential areas. Residential development is subject to residential unit caps outlined by General Plan Policy 2-30. General Plan Policv 2-30 General Plan Policy 2-30 calls for retaining and enhancing the Val/co Park South planning area as a large-scale regional commercial, office, and entertainment center with supporting residential development. Val/co Park South is planned for a total of 1,902,564 square feet of commercial uses, 708,057 square feet of office uses, 764 hotel rooms, and 71 I residential dwelling units, As of June 2005, the remaining development allocations for Vallco Park South are 250,414 square feet of commercial uses and 400 residential units. It should be noted, however, that the City's General Plan has an undesignated 300 residential units that can be allocated any where the City sees fit, including Val/co Park South. Within Val/co Park South, the maximum residential density allowed is 35 dwelling units per acre (du/ac). For a mixed use project, residential units may be allowed to provide an incentive to develop retail use if the development is well designed, financially beneficial to Cupertino, provides community amenities and is pedestrian- oriented. The maximum building height allowed is 65 feet if the project has a retail component; otherwise, the maximum building height allowed is 45 feet. Heart of the City Soecific Plan The Heart of the City Specific Plan, enacted in 1995, provides design standards and guidelines to enhance designated areas along Stevens Creek Boulevard. The entire project site is subject to the Heart of the City design standards and guidelines to promote a cohesive, landscaped streetscape between the major activity centers in Cupertino, The maximum building height allowed under Heart of the City is 35 feet, although buildings up to 45 feet are allowed as an exception subject to City review. The minimum building setback from the curb setback is 35 feet. Zoning Ordinance The portion of the project site north of Vallco Parkway is zoned P(MP) - Mixed Use Planned Development/Planned Industrial and the portion of the project site south of Vallco Parkway is zoned P - Mixed Use Planned Development (General Commercial, Office, Light Industrial, Hotel). The P(MP)-Mixed Use Planned Development/Planned Industrial zoning would allow professional offices, executive and administrative offices, medical and allied laboratories, research and development (no produce for final consumption), light manufacturing, processing, assembling, and storage of products and materials.16 The P-Mixed Use Planned Development designation in the area south of Vallco Park would allow a mix of commercial, office, light industrial and/or hotel uses. 16 Gary Chao, Planner, City of Cupertino, written communications (Email), 13 December 2005, City of Cupertino Toll BrotherslCalabazas Place Project 87 Initial Study December 2005 Other There are no habitat conservation plans or natural community conservation plans for the project site, 2. Environmental Checklist and Discussion LAND USE Less Than Potentially Significant Less Than Beneficial Information Significant With Significant No Impact Impact Source(s) Impact M ¡ligation Impact Incoroorated Would the project: I) Physically divide an established D D (8J D D 1,2 community? 2) Conflict with any applicable land D D (8J D D 2 use plan, policy, or regulation of an agency with jurisdiction over the project (including, but not limited to the general plan, specific plan, local coastal program, or zoning ordinance) adopted for the purpose of avoiding or mitigating an environmental effect? 3) Conflict with any applicable habitat D D D (8J D 1,5 conservation plan or natural community conservation plan? Discussion: General Plan and Zoning Ordinance The proposed commercial and residential land uses are consistent with the land uses allowed under the existing Commercial/Office/Residential General Plan land use designation, Residential uses on the site would occupy more area than the proposed commercial uses, however, the overall mix of land uses in the vicinity is predominately commercial and office. The proposed project, therefore, is consistent with the General Plan Land Use designation of the site, Proposed residential and park uses on the site would not be consistent with existing zoning, The project proposes to rezone the project site from Planned Development/Planned Industrial and Mixed Use Planned Development (General Commercial, Office, Light Industrial, Hotel) to Commercial/Residential and PR- Public Park to allow for the development of residential, commercial, and park uses. General Plan Policy 2-30 The remaining development allocations for the Val/co Park South planning area are 250,414 square feet of commercial uses and 400 residential units. In addition, the City of Cupertino Toll BrotherslCalabazas Place Project 88 Initial Study December 2005 City's General Plan has an undesignated 300 residential units that can be allocated any where the City sees fit, including Val/co Park South. The project proposes 100,000 - 120,000 square feet of commercial uses and either 402 residential units (Senior Option A) or 369 residential units (Condo Option B). There are currently sufficient development allocations for the proposed commercial development and Condo Option B. I f Senior Option A is approved at the Conditional Use Permit stage of the project instead of Condo Option B, then the number of residential units would exceed the 400-unit allocation for Val/co Park South in the General Plan. Senior Option A could be approved if two units from the City's undesignated City-wide housing allocation is applied (or used), The project proposes buildings ranging from 30 to 45 feet tall. Building height of up to 60 feet is allowed for mixed-use projects and the proposed project would be consistent with building height limits in General Plan Policy 2-30. The maximum allowable building height Heart of the City Specific Plan Design Guidelines The Heart of the City allows for building heights up to 45 feet with City review. A design exception is required for buildings over 35 feet in height. The City's General Plan Policy 2-30, which allows for mixed use projects to be up to 60 feet in height, however, supersedes the maximum building height limitations in the Heart of the City, The project proposes front setback ranging from 15 to 45 feet. The Heart of the City guidelines specify front setbacks must be a minimum of 35 feet. Therefore, the project would not be wholly consistent with the Heart of the City minimum front setback design guideline along Stevens Creek Boulevard, Land Use Compatibility Land use conflicts can arise from two basic causes: I) conditions on or near the project site may have impacts on the persons or development introduced onto the site by the new project. Both of these circumstances are aspects of land use compatibility; or 2) a new development or land use may cause impacts to persons or the physical environment in the vicinity of the project site or elsewhere. Potential incompatibility may arise from placing a particular development or land use at an inappropriate location, or from some aspect of the project's design or scope. The discussion below distinguishes between potential impacts from the proposed project upon people and the physical environment, and potential impacts from the project's surroundings upon the project itself. Existing and Future Surrounding Land Uses Surrounding land uses include roadways, office buildings to the west and east, commercial buildings and an apartment complex to the south, a creek, and mixed residential and commercial developments to the west (refer to Figure 3). The City of Cupertino Toll BrotherslCalabazas Place Project 89 Initial Study December 2005 proposed residential, commercial, and park uses would be similar to the surrounding residential and commercial uses to the south and west of the project site and compatible with the existing office uses to the east and west of the project site. Two mixed-use projects with residential and commercial components have been approved by the City of Cupertino adjacent to the project site. These projects are the Rose Bowl project and the Metropolitan project located to the west of the project site (refer to Figure 5), Rose Bowl Proiect (Approved But Not Yet Constructed) Residential units and a commercial building (including a loading dock area) would be constructed as part of the approved Rose Bowl project. Some of the residential units located in Area 6 of the proposed project would face the commercial building on the Rosc Bowl site (refer to Figure 5), The proposed residential units within Area 6 closest to the Rose Bowl site would not have windows or balconies facing the Rose Bowl site. This would avoid visual intrusion into the units from the Rose Bowl site. The loading dock area on the Rose Bowl site would be enclosed and covered. This would avoid and reduce possible noise impacts to the proposed residential development. An emergency vehicle access road and proposed courtyards and landscaping would also buffer the proposed project from the adjacent Rose Bowl uses. For these reasons, implementation of the proposed project would not result in substantial land use compatibility impacts at this location. Metropolitan Proiect (Approved and Under Construction) The Metropolitan project site is located to the west of Area 6, south of the Rose Bowl site (refer to Figure 5). The Metropolitan project is a mixed residential and commercial project. Three-story residential buildings, part of the Metropolitan project, would be located adjacent to the west of the proposed multiple family residential units in Area 6. The Metropolitan residential units and the project's proposed residential units would be located approximately 22 feet apart. Because the interface between the proposed project and the adjacent Metropolitan site would be between like multiple-family uses and buffered by landscaping, implementation of the proposed project would not result in substantial land use compatibility impacts at this location. Roadways The compatibility of the proposed project with surrounding roadways, including 1- 280 and Stevens Creek Boulevard, is primarily a function of impacts from noise and air emissions from vehicular traffic. Noise, air quality, and transportation impacts are discussed in Sections IV.K., IV.C., and IV.O" respectively. City of Cupertino Toll BrotherslCalabazas Place Project 90 Initial Study December 2005 Commercial/Residentiallnterfaces within the Project Site The proposed commercial area would include a central loading dock and delivery area on the south side of Vallco Parkway (refer to Figure 5), This service area would be enclosed by a masonry screen wall and have gated entry points. Garbage and recycling from the entire commercial development would be picked up by garbage and recycling collection companies at this location, The smaller commercial buildings on the east and west side of the commercial development would have enclosed areas where garbage and recycling was collected and transferred to the larger, central delivery area south of Vallco Parkway for pick up. Deliveries to the businesses on the east side of the commercial area would be made at the rear of the businesses with trucks or step vans parking in designated parking and loading zones. Deliveries would be restricted to the hours of7 AM to 7 PM. Garbage and recycling pick ups from the central service area could occur at other hours. The main loading dock and delivery area on the south side of Vall co Parkway would be approximately 250 feet from the closest proposed residences in Area 2. The proposed separation between the loading area and residences and the enclosure of this activity area would avoid substantial land use compatibility impacts at this location. Delivery areas and small enclosures for temporary trash storage would be located approximately 80 feet from the closest residences in Area 7 (refer to Figures 5 and II). The project proposes to enclose trash storage and utility areas and limit the hours of delivery to 7 AM to 7 PM, This would avoid and reduce possible land use compatibility impacts between the proposed commercial development and adjacent residential uses, The project includes the following measures to avoid land use compatibility impacts between proposed commercial and residential uses on the project site: Limit hours of deliveries, Monday through Sunday, from 7 AM to 7 PM. Enclosure of the central loading and delivery area located along Vallco Parkway with masonry, screen wall. Restrict garbage and recycling collection for the entire commercial area to the central service area located along Vallco Parkway. ResidentiallParkland Interface The project proposes to rezone 3.5-acres of the site west of Finch Avenue as PR- Public Park (refer to Figures 4 and 5) to allow for future park uses, Designated park areas are adjacent to Area 6 within the project site and the Metropolitan project to the west. The design of future park facilities within the 3.5 acres of the site has not been prepared at this time, The City anticipates that the 2.8 acres could be an active use City of Cupertino Toll BrotherslCalabazas Place Project 91 Initial Study December 2005 park with playing fields for soccer, cricket, volleyball, softball, or frisbee and the remaining 0.7 acres be used as a passive use park with a tot lot and picnic tables. Park uses are generally compatible with residential uses. The normal sounds of people interacting and/or playing in parks are a part of expected activities within residential areas. Design and operational features of parks that can result in land use conflicts with adjacent residential uses include nighttime lighting of playing fields, amplified sound systems (generally baseball or football fields), extended hours of activities allowed by nighttime lighting, localized traffic congestion or operational issues associated with traffic generated by organized sports practices or games, and security or law enforcement issues, The location of playing fields, any parking for park uses, lighting, landscaping, and other design features in the areas designated for future park uses are not known at this time. Environmental and site design review by the City of Cupertino Parks and Recreational Commission, Environmental Review Committee, Planning Commission, and City Council will be required at the time specific park uses and a specific design are proposed, Any potential conflicts or impacts associated with lighting, parking and access, hours of operation, site visibility and security will need to be addressed through the City's environmental and architectural review process at that time. Parks are compatible with residential land uses as reflected in the City's adopted §General Plan. The City's design review process will further ensure that the specific park design will not result in significant land use impacts to adjacent future residential uses in Area 6 or the adjacent Metropolitan mixed use project. 3. Conclusion The proposed project would not result in significant land use impacts. (Less Than Significant Impact) City of Cupertino Toll BrotherslCalabazas Place Project 92 Initial Study December 2005 J. MINERAL RESOURCES 1. Settin!! The project site is not located in an area containing known mineral resources. 2. Environmental Checklist and Discussion MINERAL RESOURCES Less Than Potentially Signiticant Less Than Beneficial Infonnation Significant With Significant No Impact Impact Source(s) Impact Mitigation Impact Incorporated Would the project: I) Result in the loss of availability of a known mineral resource that would 0 0 0 ~ 0 I be of value to the region and the residents of the state? 2) Result in the loss of availability of a 0 0 0 ~ 0 1 locally-important mineral resource recovery site delineated on a local general plan. specific plan or other land use plan? Discussion: The project site is not located within an identified mineral resources area and, therefore, development of the proposed project would not result in the loss of availability of a known mineral resource, 3. Conclusion The project would not result in a significant impact from the loss of availability of known mineral resources. (No Impact) City of Cupertino Toll BrotherslCalabazas Place Project 93 Initial Study December 2005 K. NOISE The following discussion is based on a noise analysis completed by Illingworth & Rodkin, Inc, in October 2005. A complete copy of this report is included as Appendix H ofthis Initial Study. I. SeWn!! Background Information Several factors influence sound as it is perceived by the human ear, including the actual level of sound, the period of exposure to the sound, the frequencies involved, and fluctuation in the noise level during exposure. Noise is measured on a "decibel" scale which serves as an index of loudness, Because the human ear cannot hear all pitches or frequencies, sound levels are frequently adjusted or weighted to correspond to human hearing. This adjusted unit is known as the "A-weighted" decibel or dBA. Further, sound is averaged over time and penalties are added to the average for noise that is generated during times that may be more disturbing to sensitive uses such as early morning, or late evening, Since excessive noise levels can adversely affect human activities (such as conversation and sleeping) and human health, federal, state, and local governmental agencies have set forth criteria or planning goals to minimize or avoid these effects. The noise guidelines are almost always expressed using one of several noise averaging methods, such as L,q, Ld", or CNEL.'7 Using one of these descriptors is a way for a location's overall noise exposure to be measured, realizing of course that there are specific moments when noise levels are higher (e,g., when ajet is taking off or when a leaf blower is operating) and specific moments when noise levels are lower (e.g., during lulls in traffic flows on 1-280 or in the middle of the night). For this report, the Ld" will be used as the noise descriptor as it is consistent with the guidelines for the City of Cupertino and the State of California. Applicable Noise Standards and Policies State Building Code Title 24, Part 2 of the State Building Code regulates environmental noise inside new multi-family housing projects. Projects exposed to an exterior Ldn of 60 dBA or greater shall incorporate the noise control treatments necessary to reduce the interior Ld" to 45 dBA or less. A report is required to be submitted to the Building 17 L,. stands for the Noise Equivalent Level and is a measurement of the average energy level intensity of noise over a given period of time such as the noisiest hour. Ldn stands for Day-Night Level and is a 24- hour average of noise levels, with a 10 dB penalty applied to noise occurring between 10:00 PM and 7:00 AM. CNEL stands for Community Noise Equivalent Level; it is similar to the Ld" except that there is an additional five dB penalty applied to noise which occurs between 7:00 PM and 10:00 PM, As a general rule of thumb where traffic noise predominates, the CNEL and Ld' are typically within two dBA of the peak-hour L,q' City of Cupertino Toll BrotherslCalabazas Place Project 94 Initial Study December 2005 Department with the building's plans which delineates the noise control treatments incorporated in the project design necessary to achieve the interior noise limit. City of Cupertino General Plan The City's General Plan identities normally and conditionally acceptable noise levels and normally and clearly unacceptable noise levels for different land uses in the City (see Table 8), Land Use Table 8 Land Uses and Acce tablc Noise Levels Community Noise Exposure (Ldn or CNEL, dB) 55 60 65 70 75 80 Playgrounds, Neighborhood Parks Residential - Multi-family (including private outdoor use areas) Office Buildings, Commercial and Professional Centers Notes: S!i(/(Jing indicates Normally Acceptable noise levels 11111111111111111111 indicates Conditionally Acceptable noise levels indicates Normally Unacceptable noise levels indicates Clearly Unacceptable noise levels Source: City o/Cupertino General Plan. Fiflure 6-L Land Use Comoatibilitv (or Communitv Noise Environments. Multi-family residential uses are considered "'normally acceptable" in noise environments up to 65 dB Ld" and "'conditionally acceptable" in environments up to 70 dB Ld"' In a noise environment between 70 and 75 dB Ld", multi-family residential land uses are considered "'normally unacceptable." Above 75 dB Ldn, this land use is considered "'clearly unacceptable." Office buildings, commercial and professional centers are considered "normally acceptable" in noise environments up to 70 dB Ldn. In a noise environment between 67 and 77 dB Ldn, however, these land uses are considered "'conditionally acceptable," Above 77 dB Ld", noise levels are considered "normally unacceptable." City of Cupertino Toll BrotherslCalabazas Place Project 95 Initial Study December 2005 Noise Ordinance The City of Cupertino Noise Ordinance establishes regulations and standards regarding noise, Applicable regulations and standards are outlined below: Daytime and Nighttime Maximum Noise Levels (Section 10.48,40). Individual noise sources, or the combination of a group of noise sources located on the same property, shall not produce a noise level exceeding 60 dBA during the daytime or 50 dBA during the nighttime at residential property lines or 65 dBA during the daytime and 55 dBA during the nighttime at non-residential property lines. Brief Daytime Incidents (Section 10.48,050), During the daytime period only, brief noise incidents exceeding the above noise standards are allowed providing that the sum of the noise duration in minutes plus the excess noise level does not exceed 20 in a two-hour period (see Table 9). Grading. Construction. and Demolition, Grading, construction, and demolition activities shall be allowcd to exceed the daytime noise limits provided that the equipment utilized has high-quality noise muffler and abatement devices installed and in good condition, and the activities meets one of the two following criteria: 1) no individual device produces a noise level more than 87 dBA at a distance of 25 feet, or 2) noise level on any nearby property does not exceed 80 dBA. Table 9 Examples of Acceptable Brief Daytime Incidents Noise Noise Duration Increment in Two-Hour Above Normal Period Standard 5dBA 15 Minutes 10dBA 10 Minutes 15 dBA 5 Minutes 19dBA I Minutes Existing Noise Conditions Noise sources affecting the project site and surrounding area include vehicular traffic on 1-280, Stevens Creek Boulevard, Tantau Avenue, and Vallco Parkway. A noise monitoring survey was conducted from September 8-9,2005 to quantify the existing noise environment at representative locations in the area. Noise measurements were taken at three locations: I) approximately 110 feet from the center of Stevens Creek Boulevard, 2) along Vallco Parkway, approximately 325 feet from the 1-280 right-of- way, and 3) approximately 135 feet from the 1-280 right-of-way (refer to Figure 19). Averaged noise levels at the site ranged from 60 to 74 dBA Ld".IS The northern portion of the site, closest to 1-280, is exposed to significantly higher noise levels compared to the rest of the project site, Nearby sensitive receptors in the project vicinity include residential uses south of the project site and Stevens Creek Boulevard, 18 At location number], near Stevens Creek Boulevard, the average noise level is 60 dBA L,", At location number 2, near Vallco Parkway, the average noise level is 6] dBA L,", At location number 3, near 1-280, the average noise level is 74 dBA L,,,. City of Cupertino Toll BrotherslCalabazas Place Project 96 Initial Study December 2005 (~( Vj ~r:v ,'. ¡~~/';{):i;;, L-J D ¡ ~.,. ,"" ." r".,,'". .,';..¡;-.?-',,:r;ii;#j;'.-., $~¿.~l. ,"FI,W;; "lÆ p: rJJ·' II,~, '!1. ' I. /, ' , /,~"".~..., / " .~,.", 'rJo / ...... I E-< ......¡ Od DOE9 C ~ _,...-w~~_ ,-,', .' ¡if "'Ii !..\lffiJ., ..!..' , ' ~ ¡' f o I If j ¡ ì<> J ¡ 11,0 '\ In 'n 4 t ) J ;, f.' i" I !, . r~-~ 97 m ,- w 0::: :J <.9 l..I... à o N (/) z o f- « u o -1 f- Z w :2: w 0::: :J (/) « w :2: w (/) o z o 2. Environmental Checklist and Discussion NOISE Less Than Potentially Significant Less Than Beneficial Information Signilicanl With Significant No Impact Impact Source(s) Impact Mitigation Impact Incorporated Would the project result in: 1) Exposure of persons to or generation 0 ¡:z¡ 0 0 0 2,6,11 of noise levels in excess of standards established in the local general plan or noise ordinance, or applicable standards of other agencies? 2) Exposure of persons to, or 0 ¡:z¡ 0 0 0 II generation of, excessive ground borne vibration or ground borne noise levels? 3) A substantial permanent increase in 0 ¡:z¡ 0 0 0 11 ambient noise levels in the project vicinity above levels existing without the project? 4) A substantial temporary or periodic 0 ¡:z¡ 0 0 0 11 increase in ambient noise levels in the project vicinity above levels existing without the project? 5) For a project located within an 0 0 0 ¡:z¡ 0 II airport land use plan or, where such a plan has not been adopted, within two miles of a public airport or public use airport, would the project expose people residing or working in the project area to excessive noise levels? 6) For a project within the vicinity of a 0 0 0 ¡:z¡ 0 1 private airstrip, would the project expose people residing or working in the project area to excessive noise levels? Discussion: CEQA does not define what noise level increase would be considered substantial. Typically, an increase in the Ldn noise level resulting from the project at noise sensitive land uses of three dBA or greater would be considered a significant impact when projected noise levels would exceed those considered satisfactory for the affected land use. City of Cupertino Toll BrotherslCalabazas Place Project 98 Initial Study December 2005 Noise Impacts The project proposes to develop residential, commercial, and park uses on the project site (refer to Figure 5), Noise impacts to the proposed land uses are discussed below. Noise Impacts to the Project Residential and Park Uses The normally acceptable noise level for multi-family residential units is up to 65 dB Ldn· Based on the existing noise measurements and the projected increase in traffic noise resulting from the proposed project, the proposed residential units could be exposed to noise levels of up to 74 dBA Ldn. Noise levels at the upper floors of the proposed residential units, due to greater exposure to noise from the freeway, could reach an Ldn of 81 dBA, which is classified as a "clearly unacceptable" noise level. The proposed residential uses, therefore, could be exposed to noise levels above the City's normally acceptable noise level for multi-family residential environments. Senior Option A Under Senior Option A, the noise levels at all of the proposed courtyards, except for the one proposed on the northern portion of the project site, are projected to be 65 dB Ldn or less. The noise level at the proposed courtyard located on the northern side of the proposed senior apartments could exceed 65 dB Ldn if directly exposed to traffic- generated noise from 1-280, The proposed project includes installation ofa 12-14 foot high soundwall along the 1-280 frontage to reduce freeway noise exposures at this location. Condo Option B Under Condo Option B, the noise levels at all of the proposed courtyards are projected to be 65 dB Ldn or less, which would be consistent with the City's normally acceptable noise level for outdoor residential areas.19 Due to the orientation of the Condominium building proposed for Area I, noise emanating from 1-280 would be shielded from the courtyard located in the northern portion of the project site. The noise levels at the proposed private park will be 65 dB or less, which would be consistent with the City's normally acceptable noise level for outdoor use areas. 19 The noise report provided in Appendix G identifies noise levels at the northem most courtyard to be exposed to noise levels above acceptable standards. However, since the completion of the noise analysis, the buildings alignment has heen adjusted and the northern courtyard has been relocated further away from 1-280, The adjustment of the huilding location and the relocation of the northern courtyard would effectively shield the courtyard from noise generated from 1-280, The revised northem courtyard location, as shown in Figure 5, would be exposed to noise levels of 65 Ld' dBA or less, Source, Rich Illingworth, Principal, Illingworth & Rodkin, Inc" written communications (Email) to David }, Powers & Associates, Inc, 9 November 2005. City of Cupertino Toll BrotherslCalabazas Place Project 99 Initial Study December 2005 Commercial Uses The normally acceptable noise level for commercial centers can be up to 70 dB Ldn. Based on existing noise levels and the projected increase in traffic noise resulting from the proposed project, the noise levels at the proposed commercial uses located on the southern portion of the project site, south of Vallco Parkway, will be up to 67 dBA Ldn. The proposed commercial uses, therefore, would be within the City's normally acceptable noise levels for commercial centers, Impact: The proposed project places residential units and an outdoor activity area (under Senior Option A only) in a noise environment that is inconsistent with the noise levels identified as normally acceptable for such uses. Mitigation and Avoidance Measures: The project proposes the following mitigation measures to reduce noise impacts to the proposed project to a less than significant level; . Prior to issuance of building permits, a design-level noise assessment of the final site plan shall be prepared for the proposed project. The assessment shall identify which units would be required to have mechanical ventilation and the required STC ratings of the building facades facing the various streets, · Install sound rated windows as appropriate and mechanical ventilation to allow the windows to be kept closed for residential units facing 1-280, Tantau Avenue, Vallco Parkway, and Stevens Creek Boulevard to achieve an interior noise level of 45 dB Ldn or less, . Under Senior Option A, construct a soundwall along the northern boundary of the project site that faces 1-280 to provide for noise reduction at the outdoor court yard. Based upon the conceptual site plan, at minimum, a masonry or precise concrete wall, 12 feet in height and extending to the ends of the parking lot with a 65-foot return at each end is required, The final design of a soundwall shall be determined based upon the design level noise assessment for the development of Area I (adjacent to 1-280). Noise Impacts from the Project The City of Cupertino's Noise Ordinance restricts noise generated by non- transportation sources to a maximum level of 60 dSA during the daytime and 50 dBA during the nighttime at residential property lines. Operation of the proposed commercial uses on the site, including truck movements, loading/unloading deliveries, and mechanical equipment (including air conditioning and/or refrigeration units), could exceed 60 dBA during the daytime and/or 50 dBA during the nighttime at the proposed, nearby residences. This would constitute a significant noise impact. City of Cupertino Toll BrotherslCalabazas Place Project 100 Initial Study December 2005 Impact: Operation of the proposed commercial uses could exceed noise level standards at the proposed residential units. Mitigation and Avoidance Measurcs: The project proposes the following mitigation and avoidance measures to reduce noise levels resulting from commercial operations at adjacent residential units to a less than significant level: · Locate and shield loading docks in a way to minimize their noise impacts. · Acoustically treat rooftop mounted mechanical equipment appropriately. · Limit hours of deliveries, Monday through Sunday, from 7 AM to 7 PM. Construction-Related Noise Impacts The City's Noise Ordinance requires that noise levels at adjacent properties not exceed 80 dBA during construction. The project could result in a substantial temporary increase in noise levels of up to 85 dBA in the project area during construction. Construction of the proposed project would result in a significant temporary noise impact at adjacent properties. Impact: The proposed project could result in a short-term increase in noise levels in the project area. Mitigation and Avoidance Measures: The project proposes the following mitigation measures to reduce construction-related noise impacts to a less than significant level: · Limit demolition and construction activities to non-holiday, daytime hours between 7:00 AM and 5:00 PM, · Construct noise barriers to shield adjacent sensitive uses from proximate construction activities on the site, · Utilize "quiet" models of air compressors and other stationary noise sources where technology exists. · Equip all internal combustion engine-driven equipment with mufflers that are in good condition and appropriate for the equipment. · Locate all stationary noise-generating equipment, such as air compressors and portable power generators, as far away as possible from businesses, residences, or other noise-sensitive land uses. · Prohibit all unnecessary idling of internal combustion engines. · Notify all adjacent businesses, residences, and other noise-sensitive land uses of the construction schedule in writing. City of Cupertino Toll BrotherslCalabazas Place Project 101 Initial Study December 2005 . Designate a disturbance coordinator, responsible for responding to complaints about construction noise, The name and telephone number of the disturbance coordinator shall be posted at the construction site and made available to businesses, residents, and other land uses adjacent to the project site. . Submit a Construction Management Plan to the Director of Public Works for review and approval prior to issuance of building permits. The Plan must identify a construction schedule, street cleaning schedule, staging area, truck routes, construction signs, and construction employee parking. 3. Conclusion The proposed project, with the implementation of the above mitigation measures, would not result in significant noise impacts, (Less Than Significant Impact with Mitigation Incorporated) City of Cupertino Toll BrotherslCalabazas Place Project 102 Initial Study December 2005 L. POPULA nON AND HOUSING 1. SeWn!! According to the Association of Bay Area Governments (ABAG) Projections 2005, within the City of Cupertino's Sphere of Influence, the household population for 2000 was 52,522 with 18,990 households, In 2015, the projected household population is 58,000 with 21,030 households. The average number of persons per household in Cupertino in 2000 was 2,77 an average which is projected to decrease slightly to 2.76 by 2015, Approximately 39,280 jobs were provided within the City of Cupertino's Sphere of Influence in 2000, and projections show a slight decrease to 29,200 by the year 2015. The number of employed residents in Cupertino in 2000 was 25,633. The number of employed residents is expected to decrease to 24,610 by the year 2015. According to the data above, the City of Cupertino had a shortage of housing in relation to the number of jobs provided in the City in 2000 and is expected to continue to have a shortage of housing in relation to the number of jobs in 2015. 2. Environmental Checklist and Discussion POPULATION AND HOUSING Less Than Potentially Significant Less Than Beneficial Infonnation Significant With Significant No Impact Impact Source(s) Impact Mitigation Impact Incorporated Would the project: I) Induce substantial population growth D D [8J D D I in an area, either directly (for example, by proposing new homes and businesses) or indirectly (for example, through extension of roads or other infrastructure)? 2) Displace substantial numbers of D D D [8J D 1 existing housing, necessitating the construction of replacement housing elsewhere? 3) Displace substantial numbers of D D D [8J D 1 people, necessitating the construction of replacement housing elsewhere? Discussion: The project proposes a mixed use development that includes new residences and commercial development within the urban service area of the City of Cupertino. No housing currently exists on the site. For this reason, the development of the proposed project would not result in the displacement of any housing. City of Cupertino Toll BrotherslCalabazas Place Project 103 Initial Study December 2005 Senior Option A proposes a total of 369 residential units, which would generate approximately 1,022 new residents, assuming approximately 2.77 residents per dwelling unit (note: this population estimate is probably high for the proposed townhouses and flats on the site). Condo Option B proposes 402 residential units and would generate approximately I, I 14 new residents, The project site is served by existing infrastructure and would not extend roads or other infrastructure to undeveloped or unserved areas, The growth associated with either of the proposed options has already been accounted for in the City's General Plan (revised November 2005) and the project would not induce unplanned growth within the City. 3. Conclusion The proposed project would not result in substantial population growth or housing impacts. (Less Than Significant Impact) City of Cupertino Toll BrotherslCalabazas Place Project 104 Initial Study December 2005 M. PUBLIC SERVICES The discussion on schools in this section is based on a fiscal and enrollment analysis completed by Townhall Services in November 2005, The analysis is included as Appendix I of this Initial Study, 1. Settin!! Fire Services Fire safety and protection is provided by the Santa Clara County Fire Division, which also serves unincorporated Santa Clara County and the communities of Campbell, Los Altos, Los Altos Hills, Los Gatos, Monte Sereno, Morgan Hill and Saratoga. The Santa Clara County Fire Department serves a total area of approximately 100 square miles and a population of over 210,000 persons. The Santa Clara County Fire Department has 16 fire stations, an administrative headquarters, a maintenance facility, five other support facilities, and more than 100 vehicles20 The Department employs over 265 fire prevention, suppression, investigation, administration, and maintenance personnel and has 40 volunteer firefighters.21 There are three fire stations located in the City of Cupertino: 1) Cupertino Fire Station No.1 is located at 20215 Stevens Creek Boulevard, 2) Monta Vista Fire Station No.7 is located at 22620 Stevens Creek Boulevard, and 3) Seven Springs Fire Station No.2 is located at 21 000 Seven Springs Parkway. Cupertino Fire Station is within 1.5 miles of the project site and would be the first to respond. Police Services Public safety services are provided by the Santa Clara County Sheriffs Office. The Santa Clara County Sheriffs Office serves the communities of Cupertino, Los Altos Hills, Saratoga, and the unincorporated areas of the Santa Clara County. The Sheriffs Office serves a population of approximately 197,700 persons and has 635 sworn personnel22 The Santa Clara County Sheriffs West Valley Division, which is located at 1601 South De Anza Boulevard, provides law enforcement services to the residents of Cupertino. 20 County of Santa Clara, Santa Clara Countv Fire Deoartment. 2004, County of Santa Clara. 2 September 2005, http://www.scvmed.org/channel/0.4990.chid%253D58863%2526sid%253DI0710.00.html. 21 County of Santa Clara. Santa Clara County Fire Deoartment. 2004, County of Santa Clara, 2 September 2005, http://www.scvmed.org/channel/0.4990.chid%253D58863%2526sid%253DI0710.00.html. 22 County of Santa Clara, Santa Clara Countv Office oflhe Sheriff, 2004, County of Santa Clara, 2 September 2005, htto:l/www.SCcgov.org/site/0.4760.sid~12655.00.html. City of Cupertino Toll Brothers/Calabazas Place Project 105 Initial Study December 2005 Schools The project site is located within the Cupertino Union Elementary School District and the Fremont Union High School District. The students in the project area attend Eisenhower Elementary School, Hyde Middle School, and Cupertino High School. Currently, a capacity deficiency exists at Hyde Middle School, and Eisenhower Elementary School and Cupertino High School are approximately at capacity. Cupertino Union Elementary School District has completed modernizations and renovations at many of its campuses, including Eisenhower Elementary School and Hyde Middle School. Both Eisenhower Elementary School and Hyde Middle School have recently completed their facilities improvements and will, as a result, be creating new attendance boundaries and moving the sixth grade into the middle school grade level (sixth grade was previously part of the elementary grade level). For this reason, both Eisenhower Elementary School and Hyde Middle School will have substantially different enrollments next year. Overcrowding currently exists at several Fremont High School District schools. The District has recently conducted a residency verification of all its students. As of May 2005, Fremont High School District estimates that approximately 250-300 students will be '"dis-enrolled" for the 2005-2006 school year as a result of being ineligible due to residency, The initial estimate is that approximately 30-50 of these students will be from Cupertino High School. Parks The City of Cupertino's neighborhood parks system serves the active and passive recreational needs of its residents, The City of Cupertino owns 150.8 acres of parkland comprised often neighborhood parks and four special purpose parks (Memorial Park, McClellan Ranch Park, Blackberry Farm and Creekside Park). The City's Park Acreage Policy (Policy 5-45) states that the City of Cupertino should provide parkland equal to a minimum of three acres for every 1,000 residents. The City is divided into 23 neighborhood areas. The project site is located in neighborhood M (refer to Figure 20). Currently, there are no neighborhood parks within neighborhood M. The nearest parks to the project site include Portal Park, Wilson Park, and Creekside Park (refer to Figure 20), City of Cupertino Toll BrotherslCalabazas Place Project 106 Initial Study December 2005 o N W 0::: :J t9 LL V) '" c: ~ .S) -1õ V) G': '" c: ,S '" ~ Ò ..... ~ .g¡ Ò lJ.J Lt '" '- c: .g¡ 0 '" " S c: g> 0 ..... § ,S) CO è' Q 0 '" ,,,, ~ '" '" ~ CO ~ ~ .", .!!) EO 1:J V) " V) « '" Q 0 -1õ t:¡- V) '" ~ ~ ~ lJ '" ,lJ G': « lJ ~ " lJ s: ~ 1:J « '- ~ .Q g> '" '" Ò ~ .c: V) ,!!! V) ,~ .'" 0 ~ c: .g¡ ~ .!!) g. Z c: ~ 6: ~ " :3 0 ~ CO ; · . I I · · · . . · I · I · · I · · I u (/) ~ 0::: « -----, 0... I 0 I I 0 ~ 0 I I Z / I 0::: ~ I 0 / I CO \ I I I t9 \ I W I Z ). I t9 z l- (/) X W 107 2. Environmental Checklist and Discussion PUBLIC SERVICES Less Than Potentially Significant Less Than Beneficial Infonnation Significant With Significant No Impact Impact Source{s} Impact Mitigation Impact Incorporated Would the project: I) Result in substantial adverse physical impacts associated with the provision of new or physically altered governmental facilities, the need for new or physically altered governmental facilities. the construction of which could cause significant environmental impacts, in order to maintain acceptable service ratios, response times or other performance objectives for any of the public services: Fire Protection? 0 0 ~ 0 0 I Police Protection? 0 0 ~ 0 0 1 Schools? 0 0 ~ 0 0 1 Parks? 0 0 ~ 0 0 1 Other Public Facilities? 0 0 0 ~ 0 1 Discussion: Fire and Police Services The project site is located within an urbanized area of Cupertino that is already served by the Santa Clara County Fire Department and the Santa Clara County Sheriffs Office, Proposed buildings would be constructed in conformance with the appropriate Fire and Building Codes to reduce fire risk. The City requires automatic sprinkler and fire detection systems in commercial areas and smoke alarms in new residential development to further reduce fire risk. Development of the proposed project would intensify the use of the project site in comparison to existing conditions, which would likely incrementally increase the number of calls for fire and police services. Additional service demands generated by the proposed project, however, will not require construction of additional fire or police facilities. Schools A fiscal and enrollment impact analysis was completed by Townhall Services in November 2005. A complete copy of this report is included in Appendix I of this Initial Study. The proposed housing type, sale price, location of development, and socio-economics are factors in determining student generation. City of Cupertino Toll BrotherslCalabazas Place Project 108 Initial Study December 2005 The primary difference between the two proposed project options is that Senior Option A proposes a total of 402 residential units, including 80 senior rental apartments, and Condo Option B proposes a total of 369 residential units, which do not include senior units, Though Senior Option A proposes more residential units than Condo Option B, Condo Option B would generate more students because it does not propose senior units,2J For this reason, the school impacts discussion below analyzes the school impacts based upon the worst-case scenario: Condo Option B. It was estimated that a total of 143 new students could be generated by implementation of Condo Option B, Of the 143 students, 75 would attend Eisenhower Elementary School, 30 would attend Hyde Middle School, and 38 would attend Cupertino High School. As discussed above, these schools have reached their capacities but improvements, boundary changes, and residency verification would create more capacity. The enrollment impacts analyzed assume that project impacts would occur within three to 10 years of project completion, Factors that influence student generation in the Cupertino Union Elementary School District and Fremont High School District may change over that time period, In particular, changes in demographics can impact enrollment capacity within the two districts. For example, in approximately four years, the baby boom echo generation will graduate from high school, which will cause a reduction in enrollment and create more capacity. Changes in policies within the districts can also affect enrollment into the future. It is anticipated that there would be sufficient capacity in the local school system to accommodate the students generated by the proposed project. In addition, state law (Government Code Section 65996) specifies an acceptable method of offsetting a project's effect on the adequacy of school facilities as the payment of a school impact fee prior to the issuance of a building permit. Both school districts are eligible to levy Level I development impact fees on new residential and commercial/industrial development. The maximum Level I residential fee that Cupertino Union Elementary School District and Fremont High School District are allowed to levy is $2.24 per square feet of residential development. Both districts are eligible to levy development impact fees on the proposed commercial development, which is a maximum of $0.36 per square foot of development.24 The project proposes to pay the school impact fees to reduce impacts to local schools. It is not anticipated that the proposed project would result in significant physical impacts to school facilities or require the construction of a new facility. 23 Townhall Services, DRAFT Calahazas Development Toll Brothers. Inc, Fiscal and Enrollment Impact Analvsis, August 2005, Note: this report is on file with the City of Cupertino, Community Development Department and is available for review during normal business hours. 24 It should be noted that the developer would be given a credit for the demolition of the existing office building at the current commercial/industrial fee rate, This would reduce the fee the developer would be charged for the proposed project. City of Cupertino Toll Brothers/Calabazas Place Project 109 Initial Study December 2005 The school fiscal and enrollment report prepared for the proposed project also included a cumulative analysis of the proposed project and other projects that are either pending, approved, and/or under construction. It was concluded that Cupertino Union Elementary and Fremont Union High School districts, with modest additions if needed, would be able to accommodate students from the cumulative projects. Therefore, the project would not result in cumulatively considerable impacts to school facilities. Parks The proposed project includes rezoning 3.5 acres of the project site to PR- Park and Recreation for future park development (refer to Figure 5). According to the City's standard and formula for parkland dedication (Municipal Code Section 18.24.050), the proposed Senior Option A would be required to dedicate 2.0382 acres of parkland and proposed Condo Option B would be required to dedicate 2,0862 acres of parkland?' The project proposes to dedicate, at minimum, in accordance with the City's Parkland Dedication requirements. The proposed project is not anticipated to result in the degradation of existing park facilities or require the construction of new facilities other than that proposed by the project. 3. Conclusion The proposed project would not result in significant impacts to public services. (Less Than Significant Impact) 25 Under Municipal Code Section 18,24,050, the average acreage required per dwelling unit for new developments is based on density and type of use, For example, residential areas with a density between 10 and 20 du/ac are required to provide 0,0060 acres of parkland per unit, residential areas with a density equal or greater than 20 du/ac are required to provide 0,0054 acres of parkland per unit, and senior housing~at any density range-are required to provide 0.0030 acres of parkland per unit. Parkland dedication requirements for Senior Option A and Condo Option B can be calculated as follows: Density Parkland Required Area # of units requirement (du/ac) per unit Acres Senior OIJ/ion A I 23 80 X 0,0030 - 0,24 2-5 17 108 X 0,0060 - 0,648 6 36 95 X 0,0054 - 0.513 7 26 118 X 0,0054 - 0,6372 TOTAL 2.0382 Condo OlJtion 8 1-5 16 156 X 0,0060 ~ 0.936 6 36 95 X 0,0054 - 0,513 7 26 118 X 0,0054 - 0,6372 TOTAL 2.0862 City of Cupertino Toll Brothers/Calabazas Place Project 110 Initial Study December 2005 N. RECREATION 1. Settin!! The Department of Parks and Recreation is responsible for park planning and development, and a comprehensive leisure program for the City. The City's Policy 5- 45, states that the City should provide parkland equal to a minimum of three acres for every 1,000 residents. The City of Cupertino owns approximately 151 acres of parkland, including neighborhood parks and special purpose parks, Additionally, the Department manages leisure services facilities including Quinlan Community Center, Cupertino Sports Center, Monta Vista Recreation Center, Cupertino Senior Center, and Blackberry Farm. As discussed in Section IV.M. Public Services, the nearest parks to the project site include Portal Park, Wilson Park, and Creekside Park (refer to Figure 20). 2. Environmental Checklist and Discussion RECREA TION Less Than Potentially Significant Less Than Beneficial Infonnation Significant With Significant No Impact Impact Source(s) Impact Mitigation Impact Incorporated Would the project: I) Increase the use of existing D D C8J D D I neighborhood and regional parks or other recreational facilities such that substantial physical deterioration of the facility would occur or be accelerated? 2) Does the project include recreational D D C8J D D 1 facilities or require the construction or expansion of recreational facilities which might have an adverse physical effect on the environment? Discussion: There are no public parks located within the project site neighborhood area. The project proposes to rezone 3.5 acres of the project site PR-Park and Recreation for a future public park, which would serve the proposed project and the existing neighborhood. The project proposes, at minimum, to dedicate parkland in accordance with the City's Parkland Dedication requirements. The project's parkland dedication would meet the parkland requirements set forth by General Plan Policy 5- 45 for a project of this size. City of Cupertino Toll Brothers/Calahazas Place Project III Initial Study December 2005 The provisions of a new public park would avoid possible impacts to existing neighborhood parks, New residents may use other community facilities (such as the Cupertino Sports Center) in the City, however, this incremental increase in use is not anticipated to result in substantial physical deterioration of these facilities. The environmental impacts of the project, including the proposed parkland dedication, are addressed throughout this Initial Study. The impacts of future park construction at this location are not anticipated to result in any adverse environmental effects that cannot be reduced to a less than significant level with measures included in the project. The design of future park facilities within the 3.5 acres of the site has not been prepared. At this time, the City anticipates that the approximately 2.8 acre square shaped area along Stevens Creek Boulevard could be an active use park with playing fields for soccer, cricket, volleyball, baseball or frisbee, The location of playing fields, any parking for park uses, lighting, landscaping, and other features are not known at this time. The City anticipates that the remaining 0.7 acre triangular shaped area to the west of Finch A venue could be used as a passive park with open grass areas, a tot lot, and picnic tables, Environmental review of specific park improvements will be required at thc time they are proposed. To the extent that construction of a new public park could be delayed by budget constraints, there could be a near-term increase in the use of existing parks in Cupertino and surrounding cities. While use by approximately 1,022 new residents could increase crowding at parks during peak periods of use, it is not anticipated to result in substantial physical deterioration of facilities as use would be spread out at several parks locations. 3. Conclusion The proposed project would not result in significant recreational impacts. (Less Than Significant Impact) City of Cupertino Toll Brothers/Calabazas Place Project 112 Initial Study December 2005 O. TRANSPORT A TION The following discussion is based upon a traffic impact analysis completed by Fehr & Peers Transportation Consultants in December 2005, A complete copy of this report is included as Appendix J of this Initial Study, l. Settin!! Existing Conditions Existing Roadway Network The project site location and surrounding roadway network are described below and shown in Figure 21. Interstate 280 (1-280) is a north-south, eight-lane freeway with one lane in each direction designated as a high occupancy vehicle (HOV) lane, also known as carpool lanes. 1-280 extends from San Francisco, in the north, to San José, in the south. In the vicinity of the project site, 1-280 runs in a northwest to southeast direction and is located north of the site. Access from 1-280 to the project site is provided via interchanges at Wolfe Road and Stevens Creek Boulevard, Lawrence Expresswav is a limited-access facility operated by Santa Clara County. It is a six-lane facility south of 1-280, North of 1-280, Lawrence Expressway is primarily an eight-lane facility with the right lane in each direction restricted to HOVs during the commute hours. Access to the project site from Lawrence Expressway is provided by Stevens Creek Boulevard, Pruneridge Avenue, and Homestead Road. Bollinger Road is a four lane, east-west arterial located south of the project site. Bollinger Road extends from De Anza Boulevard to Lawrence Expressway. East of Lawrence Expressway, Bollinger Road is known as Moorpark Avenue. Stevens Creek Boulevard is a six-lane, east-west divided arterial forming the southern boundary of the project site. Stevens Creek Boulevard extends from the western boundary of Cupertino into San José to the east. Wolfe Road is a four-to-six lane, north-south arterial located west of the project site. South of Stevens Creek Boulevard, Wolfe Road is known as Miller Avenue. Homestead Road is a four-lane, east-west arterial north of the project site. It extends east from Cupertino into Santa Clara, Pruneridge Avenue is a four-lane, east-west arterial located north of the project site. Pruneridge Avenue extends east from Wolfe Road to San José. City of Cupertino Toll Brothers/Calabazas Place Project 113 Initial Study December 2005 .- c N 0 c W tj 0 w " 1ii ..J ~ " " Ii; u <0 0 0 ::J :Ë ..J Z (IJ >- ü ¡2 l'J " " => °e .... I.l... Iii D- o Z 0 Z .~ w CJ W ..J >ÇI :õ'::>U:;>JMe"l ":;>/'0"1 n~u~l ]! ¡¡j ~ u ~ . > ~ '" if) Z 0 I- ;¡¡ U w ij if) l' ~ " 4J W I- Z - >- 0 ::J I- if) 0 Z « ~ ~ 0 S I- W Z >- « S 0 « 0 ~ l'J z I- if) X W ;:1 " · ~ · · E o ~ ,,~ o " .. > '~:;>lIOM ":õ'^V J:õ' IV'j 0P:'! J::.q:õlwu:õld - ":;>/'0"1 ¡E'-: .\Od "'d^V :õlUE'lg 'p^lgezuV:Õ>Q 114 Tantau Avenue is a four-lane, north-south roadway located east of the project site. Tantau Avenue extends from Homestead Road to Bollinger Road. Through movements on Tantau A venue across Stevens Creek Boulevard are restricted by medians. Finch Avenue is a two-lane north-south roadway extending south from Vallco Parkway to Phil Lane. Through movements across Stevens Creek Boulevard are restricted by medians. Existing Pedestrian and Bicycle Facilities In the project vicinity, pedestrian facilities are comprised of sidewalks and pedestrian signals at signalized intersections. Sidewalks are generally provided on both sides of Wolfe Road, Vallco Parkway, Finch Avenue, and Tantau Avenue. All of the signalized intersections in the project area are equipped with pedestrian signals. Bicycle facilities are comprised of bike paths, bike lanes, and bike routes. Bike paths are paved pathways for use by bicycles that are separated from roadways. Bike lanes are lanes on roadways designated for use by bicycles with special lane markings, pavement legends, and signage, Bike routes are designated with signs only. Bike lanes are provided on Wolfe Road and Tantau Avenue near the project site. Miller Avenue and Pruneridge Avenue east of Tantau Avenue are designated as bike routes. Bicycles are permitted on Lawrence Expressway but no special signing or striping designations are provided, Existing bicycle facilities are shown on Figure 22. Existing Transit Service The Santa Clara Valley Transportation Authority (VT A) operates bus service in Santa Clara County. Figure 23 shows the existing transit facilities near the project site. Route 23 is a local bus route that provides service between Downtown San José and the San Antonio Shopping Center via Stevens Creek Boulevard near the site. The hours of operation are from 5 :00 AM to 12:30 AM with 15-to 60-minute headways on weekdays. On weekends, this route operates on 15- to 60-minute headways between 6:00 AM and 12:00 AM, Route 26 is a local bus route that provides service between East San José and Sunnyvale. Weekday hours of operation are from 6:00 AM to 10:00 PM with 20- to 60-minute head ways. Weekend operations are provided on 30- to 60-minute headways between 7:00 AM and 9:30 PM. This route operates on Wolfe Road west of the site, Route 36 is a local bus route that provides commute service between East San José and Vallco Fashion Park. Weekday hours of operation are from 6:00 AM to 9:00 AM and from 3:00 PM to 7:00 PM with 60-minute headways, This route does not provide service to the study area on weekends. This route operates on Wolfe Road, Vallco Parkway, and Pruneridge Avenue near the site, City of Cupertino Toll Brothers/Calabazas Place Project 115 Initial Study December 2005 --~ ~ C ." 0 '" J!! . V $ $ § 0 c 5 ~ . 0 $ t; ~ ~ a. $ $ $ $ '" ~ '" e ~ ¡¡¡ ~ a. CO I I I b3 z - w I - CJ I w -' · · · - , , _II_II , , ".W.dIC:I a)U,UMY1 IJ I · · · "aAvnI?JUl'l . . I I ~ ~ ~ ~ ~ o r ----- .. ____tit 'a^"I/J~I!W 'P1:I aJloM ·P1:IJØta.u!JØd '<MVI1!1JOd 'aAV^ØlII! 8 ~ ~ ~ · · u · ~ · ~ 'P^lBImJ't ao ]]6 , , N N W 0:: ::::J 19 l.L. .~ ~ , ,; ~ è> =õ ~ C/) w f- ::::J 0 0:: w -.J U >- U CO 19 w z ~ « f- (t u ~ C/) Z 0 t- X t- o W z M N W 0::: $ ::::J c $ 0 19 0 0 0 '" ." 0 ~ '" ~ LL u 0 0 ~ ~ ~ 0 ~ t; '" ~ . -;; ~ 'e u 0. 0 X ~ ~ w 0 Z ~ . . w .." w ~ 'P!::I ilJlOM "OM'f/ n~~.II.'l 'Pij Aa¡aJ./pad @ z w ~ « v ~ o l- I- a z (f) W f-- ::::J o 0::: f-- (f) Z « 0::: f-- 'a!lVleUOd 117 Route 51 is a local bus route between Vallco Fashion Park and Mountain View. The hours of operation are from 6:00 AM to 7:00 PM with 30- to 60-minute headways. Saturday operations are provided on 60-minute headways between 9:00 AM and 7:00 PM, This route operates on Wolfe Road, Vallco Parkway, and Homestead Road near the site. Route 81 is a local bus route between East San José and Vallco Fashion Park. The hours of operation are 5:00 AM to 11 :00 PM on weekdays with 30- to 60-minute headways. This route operates on 60-minute headways between 8:00 AM and 9:00 PM on Saturdays and Sundays. Route 81 operates on Wolfe Road, Pruneridge A venue, and Tantau A venue near the project site. Route 101 is an express bus route between the Park-n-Ride lot at Camden Avenue/ State Route 85 and Palo Alto. This route operates northbound between 5:45 AM to 8:30 AM and southbound between 3:30 PM and 7:00 PM with 30-minute headways. This route does not operate on weekends. Route 101 operates on Wolfe Road and [-280 near the project site. Route 103 is an express bus route between East San Jose and Palo Alto. This route operates westbound between 5:00 am to 8:30 am and eastbound between 2:30 pm and 6:30 pm with 45-minute headways. This route does not operate on weekends. Route 103 operates on 1-280 near the project site. Route 182 is an express bus route between Palo Alto and the IBM facility on Bailey Avenue. This route operates two southbound buses between 7:00 am to 8:30 am and two northbound buses between 4:45 pm and 6:30 pm with 30- to 45-minute headways, This route does not operate on weekends. Route 182 operates on Vallco Parkway, Wolfe Road, and 1-280 near the project site. Intersection Level of Service Methodology Level of Service (LOS) is a qualitative description of traffic flow based on such factors as speed, travel time, delay, and freedom to maneuver. Six levels are defined from LOS A, as the best operating conditions, to LOS F, the worst operating conditions, LOS E represents "at-capacity" operations. When volumes exceed capacity, stop-and-go conditions result, and operations are designated as LOS F. Signalized Intersections The level of service methodology approved by the City of Cupertino and the VT A analyzes a signalized intersection's operation based on average control vehicular delay calculated using the method described in Chapter 16 of the 2000 Highway Capacity Manual (HCM) (Special Report 209, Transportation Research Board) with adjusted saturation flow rates to reflect conditions in Santa Clara County. Control delay includes initial deceleration delay, queue move-up time, stopped delay, and final acceleration delay. The average control delay for signalized intersections is calculated using TRAFFIX analysis software and is correlated to a LOS designation as shown in Table 10. City of Cupertino Toll Brothers/Calabazas Place Project 118 Initial Study December 2005 Table 10 Signalized Intersection Level of Service Definitions Usin!!: Avera!!:e Control Vehicular Delav Level Average of Description Control Delay per Vehicle Service . (seconds) A Operations with very low delay occurring with ::: 10.0 favorable progression and/or short cvcle lenlrths B+ Operations with low delay occurring with good 10.1 to 12.0 B progression and/or short cycle lengths. 12.1 to 18.0 B- 18.1 to 20.0 C+ Operations with average delays resulting from fair 20.1 to 23.0 C progression and/or longer cycle lengths. Individual 23.1 to 32.0 C- cycle failures begin to appear. 32.1 to 35.0 D+ Operations with longer delays due to a combination 35.1 to 39.0 D of unfavorable progression, long cycle lengths, and 39.1 to 51.0 D- high V /C ratios. Many vehicles stop and individual 51.1 to 55.0 cycle failures are noticeable. E+ Operations with high delay valued indicating poor 55.1 to 60.0 E progression, long cycle lengths, and high V /C ratios. 60.1 to 75.0 E- Individual cvcle failures are frequent occurrences. 75.1 to 80.0 Operations with delays unacceptable to most drivers > 80.0 F occurring due to over-saturation, poor progression, or very long cycle lengths. Source: VTA's CMP Traffic Level of Service Analysis Guidelines, June 2003, and Transportation Research Board, Hi£hwav Capacitv Manual, 2000, The level of service standard (i,e., minimum acceptable operations) for all of the signalized study intersections in the City of Cupertino is LOS D except at two locations. According to the City's General Plan, the Stevens Creek BoulevardlDe Anza Boulevard and the De Anza Boulevard/Bollinger Road intersections must maintain LOS E+ operations (with no more than 60 seconds weighted average control delay), The same operations methodology is used by the Valley Transportation Authority (VT A) to analyze traffic impacts for Congestion Management Program (CMP) facilities, The level of service standard for CMP-designated intersections is LOS E. However, in Cupertino, the City's thresholds are used to identifY intersection impacts. Those study intersections identified as serving regional traffic in the CMP are so marked in Table 12 (see footnote #4). The City of Santa Clara level of service standard is LOS D for local signalized intersections and LOS E for designated CMP intersections. Four of the study intersections are located in the City of Santa Clara: Homestead Road and Lawrence City of Cupertino Toll Brothers/Calahazas Place Project 119 Initial Study December 2005 Expressway, Stevens Creek Boulevard and 1-280 ramps, Stevens Creek Boulevard and Lawrence Expressway (W) and Stevens Creek Boulevard and Lawrence Expressway (E). Unsignalized Intersections Operations of the unsignalized study intersection of Vall co Parkway and Finch Avenue were evaluated using the methodology contained in the 2000 HCM. LOS ratings for stop-sign controlled intersections are based on the average control delay expressed in seconds per vehicle. At two-way or side street controlled intersections, the control delay is calculated for each movement, not for the intersection as a whole. For approaches composed of a single lane, the control delay is computed as the average of all movements in that lane. For all-way stop-controlled locations, a weighted average delay for the entire intersection is presented. Table II summarizes the relationship between delay and LOS for unsignalized intersections. LOS D is the minimum acceptable level of service for unsignalized intersections. Table 11 Unsignalized Intersection Level of Service Definitions Usin ( Avera (e Control Delay Level of Average Control Service Description Delay per Vehicle (Seconds) A Little or no delav < 10.0 B Short traffic delays 10.1 to 15.0 C A vera!!e traffic delavs 15.1 to 25,0 D Long traffic delays 25.1 to 35.0 E Verv Ion ( traffic delavs 35.1 to 50.0 F Extreme traffic delays with intersection >50.0 capacity exceeded Source: Hil?hway Capacity Manual. Transportation Research Board, 2000, Study Intersections The project traffic analysis evaluated 21 intersections in the vicinity of the project site (refer to Figure 21 and Table 12), Existing Conditions Existing Levels of Service Existing intersection lane configurations and peak-hour turning movement volumes were used to calculate the levels of service for the key intersections during each peak hour. The results of the LOS analysis for Existing Conditions are presented in Table 12. City of Cupertino Toll Brothers/Calabazas Place Project 120 Initial Study December 2005 Table 12 Existinl! and Back"round Intersection Levels of Service Peak Existing Backgronnd Intersection Hour Conditions Conditions Delav LOS Delav LOS 1. Wolfe Road/ Homestead AM 26.5 C 26.9 C Road PM 43.0 D 46.7 D 2. Homestead Road/ Tantau AM 19.7 B- 20.5 C+ A venue PM 19.8 B- 21.3 C+ 3. Homestead Road/ Lawrence AM 42.7 D 47.3 D Expresswav4 PM 50.1 D 92.5 F 4. Wolfe Road/ Pruneridge AM 21.3 C+ 20.2 C+ Avenue PM 32.5 C- 31.7 C 5. Prune ridge A venue/ Tantau AM 21.1 C+ 21.3 C+ Avenue PM 22.4 C+ 22.7 C 6. Wolfe Road/ 1-280 AM 12.4 B 12.9 B Northbound ramps4 PM 10.8 B+ 13.7 B 7. Wolfe Road/ 1-280 AM 11.3 B+ 11.2 B+ Southbound ramps4 PM 10.3 B+ 11.0 B+ 8. Wolfe Road/ Vallco AM 13,6 B 19.1 B- Parkway PM 28.1 C 60.0 E+ 9. Vallco Parkway/ Finch AM 10.6 B 11.8 B A venues PM 10.3 B 13.5 B 10. Vallco Parkway/ Tantau AM 8,9 A 11.9 B+ A venue PM 12,2 B 17.2 B 11. Stevens Creek Boulevard AM 30.9 C 32.9 C- and De Anza Boulevard4 PM 34.9 C- 38.8 D+ 12. Stevens Creek Boulevard/ AM 18.1 B- 18.0 B- Blaney Avenue PM 29.4 C 29.1 C 13. Stevens Creek Boulevard/ AM 10.5 B+ 10.9 B+ Portal A venue PM 16,0 B 14.6 B 14, Stevens Creek Boulevard/ AM 8.1 A 8.3 A Perimeter Road PM 15.7 B 16.1 B 15. Stevens Creek Boulevard/ AM 35.7 D+ 37.0 D+ Wolfe Road-Miller Avenue4 PM 37.8 D+ 42.9 D+ 16. Stevens Creek Boulevard/ AM 30.5 C 30.4 C Finch A venue PM 17.4 B 17.0 B 17. Stevens Creek Boulevard/ AM 19.4 B- 19.4 B- Tantau Avenue PM 19.6 B- 20.6 C+ 18. Stevens Creek Boulevard/ l- AM 32.9 C- 34.1 C- 280 Ramps PM 42.0 D 46.1 D 19. Stevens Creek Boulevard/ AM 22.5 C+ 22.0 C+ Lawrence Expresswav (W)4 PM 25.9 C 26.7 C 20. Stevens Creek Boulevard/ AM 35.0 D+ 37.7 D+ Lawrence Expressway (E)4 PM 36.6 D+ 39.2 D City of Cupertino Toll Brothers/Calabazas Place Project 121 Initial Study December 2005 Table 12 Existin!! and Back round Intersection Levels of Service Peak Existiug Background Intersection Hour Conditions Conditions Delav LOS Delav LOS 2 I. Bollinger Road/ Tantau AM 10.7 B+ 10.6 A A venue PM 10.2 B+ 10.0 A Notes: All intersections are signalized unless otherwise noted. I AM = morning peak hour, PM = evening peak-hour 2 Whole intersection weighted average control delay expressed in seconds per vehicle for signalized and all-way stop intersections using methodology described in the 2000 Highway Capacity Manual, with adjusted saturatedflow rates to reflect Santa Clara County Conditions, For two-way stop controlled unsignalized intersections, total control delay for the worst movement, expressed in seconds per vehicle, is presented. LOS calculations conducted using the TRAFFIX level of service analysis software package, 3 LOS = Level of Service 4 Designated CMP intersection 5 Side-Street Stoo Control The results of the LOS calculations indicate that all study intersections currently operate at acceptable levels of service. Background Conditions The following discussion describes the background conditions in the project area. Background conditions are defined as conditions that are reasonably assumed to exist prior to completion of the proposed development, include traffic from previously approved projects, and serve as the basis to identify project impacts. Traffic volumes for background conditions comprise existing volumes plus traffic generated by approved developments in the area, including the occupancy of the existing office building on the project site. Background Roadway Improvements Prior to project completion, no future roadway improvements would be constructed at any of the study intersections, Background Traffic Estimates Traffic volumes for Background Conditions were estimated by adding traffic generated by approved but not yet constructed and occupied developments in the study area to existing volumes, The list of approved projects was developed with information from the City of Cupertino and stafffrom the cities of Santa Clara and Sunnyvale. Traffic from the approved developments was obtained from traffic impact reports or estimated with Institute of Transportation Engineers (ITE) trip City of Cupertino Toll BrotherslCalabazas Place Project 122 Initial Study December 2005 generation rates and standard engineering practice. The trips associated with each development were then assigned to the roadway network based on the relative locations of complementary land uses and existing and estimated future travel patterns. Background Conditions also includes full occupancy of the vacant office building located on the project site. Traffic from this use was included since the building could be occupied at any time by an appropriate tenant without discretionary city approval, and the current roadway system was originally sized to accommodate this use. The traffic that could be generated by the existing office building, assuming it was fully occupied, was estimated using rates published in Trip Generation (7th edition) by the ITE. The existing building consists of approximately 150,300 square feet of office space, If the existing building was re-occupied, it would generate approximately 1,826 daily, 260 AM peak-hour trips (229 inbound and 31 outbound) and 247 PM peak-hour trips (42 inbound and 205 outbound). The trip distribution pattern for traffic from the existing office building was estimated based on existing travel patterns in the vicinity of the site and the relative locations of complementary land uses. The trip distribution pattern for office uses is included in Appendix J of this Initial Study. In general, trips were distributed along regional roadways (Wolfe Road and [-280) and to residential areas in Cupertino, Sunnyvale, and Santa Clara. The office trips plus traffic from approved but not yet constructed developments were added to existing traffic volumes to obtained background traffic volumes. Background Intersection Levels of Service Intersection levels of service calculations were conducted to evaluate the operating levels of the study intersections under background conditions. The results of the intersection LOS analysis for the key intersections are presented in Table 12. The intersection of Homestead Road and Lawrence Expressway is projected to degrade to LOS F during the PM peak hour under Background Conditions primarily due to the newly occupied Kaiser Hospital project on Lawrence Expressway at Homestead Road. The remaining intersections are projected to operate at LOS D or better during both peak hours, City of Cupertino Toll Brothers/Calabazas Place Project 123 Initial Study December 2005 2. Environmental Checklist and Discussion TRANSPORT A TlON/TRAFFlC Less Than Potentially Significant Less Than Beneficial Infonnation Significant With Significant No Impact Impact Source(s) Impact Mitigation Impact Incorporated Would the project: I) Cause an increase in traffic which is D D !8J D D 12 substantial in relation to the existing traffic load and capacity of the street system (i.e., result in a substantial increase in either the number of vehicle trips, the volume to capacity ratio of roads, or congestion at intersections)? 2) Exceed, either individually or D !8J D D D 12 cumulatively, a level of service standard established by the county congestion management agency for designated roads or highways? 3) Result in a change in air traffic D D D !8J D 1 patterns, including either an increase in traffic levels or a change in location that results in substantial safety risks? 4) Substantially increase hazards due to D D !8J D D 12 a design feature (e.g" sharp curves or dangerous intersections) or incompatible land uses (e,g., farm equipment)? 5) Result in inadequate emergency D D !8J D D 12 access? 6) Result in inadequate parking D D !8J D D 12 capacity? 7) Conflict with adopted policies, D D !8J D D 12 plans, or programs supporting alternative transportation (e,g" bus turnouts, bicycle racks)? Discussion: Significant Impact Criteria Local Signalized Intersections The proposed project would result in a significant impact if the addition of project traffic causes one of the following to occur at a signalized intersection: 1. The level of service at a local intersection operating at LOS D or better under background conditions, deteriorates to LOS E or F; City of Cupertino Toll Brothers/Calahazas Place Project 124 Initial Study December 2005 2, An increase in the critical movement delay at a local intersection operating at LOS E or F under background conditions by four (4) or more seconds and an increase in the critical V/C ratio by 0.01 or more; Regional Intersections 3. The level of service at the Stevens Creek Boulevard/De Anza Boulevard intersection to be LOS E or worse with more than 60 seconds of average vehicle weighted delay; 4. Degradation of the level of service at a CMP-monitored intersection operating at LOS E or better under background conditions to LOS F; or 5. An increase in the critical movement delay at a CMP-monitored intersection operating at LOS F under background conditions by four (4) or more seconds and an increase in critical V /C ratio by 0.0 I or more. City of Cupertino Unsignalized Intersections The proposed project would result in a significant impact if the addition of project traffic causes one of the following to occur at an unsignalized intersection: I. Intersection operations to deteriorate from an acceptable level under Background Conditions (LOS D or better) to an unacceptable level (LOS E or worse) and the Caltrans Peak Hour Volume Warrant for a traffic signal is met under Project Conditions; or 2. The exacerbation of operations at an unsignalized intersection already operating at an unacceptable level (LOS E or worse) under Background Conditions and the Caltrans Peak Hour Volume Warrant for a traffic signal is met under Project Conditions. Project Conditions This section evaluates background traffic conditions plus project-generated traffic estimated for the proposed project. The amount of traffic added to the roadway system by a proposed development project is estimated using a three-step process: (I) trip generation, (2) trip distribution, and (3) trip assignment. The first step estimates the amount of added traffic to the roadway network. The second step estimates the direction of travel to and from the project site, The trips are assigned to specific street segments and intersection turning movements during the third step. City of Cupertino Toll Brothers/Calabazas Place Project 125 Initial Study December 2005 Trip Generation The amount of traffic added to the surrounding roadway system by the proposed project was estimated by applying appropriate AM and PM peak hour trip generation rates published in Trip Generation (7th Edition) by the ITE. Comparing the AM and PM peak hour trip generation of the two project options, Condo Option B generates nine more AM peak-hour trips and four more PM peak- hour trips than Senior Option A. Since Condo Option B generates more peak-hour trips than Senior Option A, its impacts are greater, For this reason, the following discussion is based on Condo Option B. 26 The number of trips generated by Condo Option B is summarized in Table 13. By itself, Condo Option B is estimated to result in 7,502 daily trips, an increase of272 AM peak hour trips and 694 PM peak hour trips compared to existing conditions. Trips that could be generated by the existing office building, iffully occupied, were subtracted from the above calculated trips to get the new, net daily and peak hour project trips. The existing building would be demolished prior to construction of the proposed development. The existing use consists of approximately 150,300 square feet of office and is estimated to generate 1,826 daily, 260 AM peak-hour trips (229 inbound and 31 outbound) and 247 PM peak-hour trips (42 inbound and 205 outbound), Reductions for internalization were also applied per VTA guidelines. Some of the trips generated by the proposed retail uses are pass-by trips. Pass-by trips represent vehicles that are already on the adjacent street (i.e. Stevens Creek Boulevard) and are not new trips on the overall street system. Drivers would stop at the project site on their way to/from their origin/destination. A pass-by trip reduction of25 percent was applied to the retail trip estimates, The amount of net-added traffic from Condo Option B is estimated to be a net increase of 5,676 daily trips, a net increase of 12 AM peak-hour trips (133 fewer inbound/145 added outbound) and a net increase of 447 PM peak-hour trips (327 added inbound/120 added outbound). The number of net new trips is also shown in Table 13. Trip Distribution and Assignment The directions of approach and departure for project traffic were estimated based on existing travel patterns in the area and the relative locations of employment centers. In addition, information provided in the Census Transportation Planning Packet (CTPP) was used to help determine the trip distribution. The major directions of approach and departure form the trip distribution pattern for the project, and are illustrated on Figure 24. Most project traffic will approach and depart the site using Wolfe Road north and south and 1-280. 26 Fehr & Peers, Draft Final Reoort Transoortation lmoact Analvsis Calabazas Place, December 2005. City of Cupertino Toll Brothers/Calabazas Place Project 126 Initial Study December 2005 -; \C 00 C 00 00 '0 ;;0; ..... '" .... 0 '" " c ..... 00 0- N 00 ... .... 0 -. 00 V) \C Eo< ..... , , V) , -. '0 N .... ... - .. 0 .... IIi ..... 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Vallco Parkway, east of Finch Avenue, will become a two-lane roadway with left-turn lanes and angled parking provided on the south side. The estimated daily traffic volumes on this portion of Vallco Parkway are 7,000 vehicles. A two-lane roadway with parking has a capacity of 10,000 to 12,000 vehicles per day before excessive delays occur for the driveways or drivers accessing the parking spaces. For this reason, the proposed reduction of Vall co Parkway, east of Finch A venue, is not expected to result in significant traffic impacts. The project also proposes to change the two-way stop-controlled Vallco Parkway and Finch A venue intersection to an all-way stop-controlled intersection. The all-way stop control at the Vallco Parkway and Finch Avenue intersection would provide drivers with a transition in the street's character from a thoroughfare to a two-lane street with angled parking. In addition, the project proposes to remove one westbound through lane on Stevens Creek Boulevard between Tantau and Finch A venues and provide parallel parking on the north side of the street. The intersection levels of service calculations described below include these changes. Project Intersection Levels of Service Intersection levels of service were calculated with the net traffic added by the proposed project to evaluate the operating conditions of the intersections and identify impacts to the local roadway system. The results of the intersection level of service calculations for Background and Project Conditions are in Table 14. This table also shows the changes in critical delay and volume-to-capacity ratio (V/C) due to the addition of project traffic, Critical turning movements dictate how an intersection operates; therefore, Table 14 presents the change in critical V/C, and delay. In most instances, slight improvements in critical delay are reported. This is due to the method the program uses to allocate green time to the various turning movements. All of the key intersections, signalized and unsignalized, are projected to operate at the same or better levels of service under project conditions as they do under background conditions, Signal Warrant Analysis A full signal warrant analysis was conducted for the Vallco Parkway/Finch Avenue intersection (refer to Appendix J), The analysis looked at the eight traffic signal warrants recommended in the Federal Highway Administration Manual on uniform Traffic Control Devices (2003) and associated state guidelines, Under Project Conditions, traffic volumes at the unsignalized Vallco Parkway/Finch Avenue intersection would not meet the minimum warrant criteria for signalization during either the AM or PM peak hours. City of Cupertino Toll Brothers/Calabazas Place Project 129 Initial Study December 2005 Table 14 Background and Project Intersection Levels of Service Back!!round Proiect - Condo Ootion B Intersection Peak Change in Change in Hourt Delay2 LOS) Delay2 LOS' Critical Critical Delavs Delav· 1. Wolfe Road/ AM 26.9 C 26.9 C -0.1 +0.003 Homestead Road PM 46,7 D 47.2 D +l.l +0.020 2. Homestead Road/ AM 20.5 C+ 20.2 C+ -0.6 -0.012 Tantau Avenue PM 21.3 C+ 21.5 C+ +0.3 +0.010 3. Homestead Road/ AM 47.3 D 47,5 D +0.1 +0.000 Lawrence Expresswal PM 92,5 F 93.7 F +1.4 +0.003 4. Wolfe Road/ AM 20.2 C+ 20,2 C+ -0.1 +0.007 Prunerid!!e A venue PM 31.7 C 31.7 C +0.1 +0.012 5. Pruneridge A venue/ AM 21.3 C+ 21.3 C+ +0.1 +0.007 Tantau Avenue PM 22.7 C 23.0 C+ +0.2 +0.003 6. Wolfe Road/ 1-280 AM 12.9 B 12.8 B +0.1 +0.007 Northbound ramps6 PM 13,7 B 14.3 B +1.1 +0.023 7. Wolfe Road/ 1-280 AM 11.2 B+ 11.2 B+ +0.1 +0.013 Southbound ramps6 PM 11.0 B+ 11.5 B+ +0.7 +0.030 8. Wolfe Road/ Vallco AM 19,1 B- 19.8 B- +0.3 +0.006 Parkway PM 60.0 E+ 65.5 E +2.6 +0.011 9. Vallco Parkway/ AM 11.8 B 8.3 A N/A N/A Finch Avenue' PM 13.5 B 11.2 B N/A N/A 10. Vallco Parkway/ AM 11.9 B+ 12,1 B -7.6 +0.002 Tantau A venue PM 17.2 B 16.9 B -0.6 -0.026 11. Stevens Creek AM 32,9 C- 33.0 C- +0.3 +0.003 Boulevard and De Anza Boulevard6 PM 38.8 D+ 39,1 D +0.3 +0.003 12. Stevens Creek AM 18.0 B- 18.0 B -0.1 +0.005 Boulevard/ Blaney PM 29.1 C 28.9 C -0.1 +0.011 A venue 13, Stevens Creek AM 10.9 B+ 10.8 B+ +0.0 +0.005 Boulevard/ Portal A venue PM 14.6 B 14.4 B -0.2 +0.011 14. Stevens Creek AM 8.3 A 8.3 A +0.0 +0.004 Boulevard/ Perimeter Road PM 16.1 B 15.9 B -0.2 +0.011 15. Stevens Creek AM 37.0 D+ 37.0 D+ +0.0 +0.006 Boulevard/ Wolfe Road-Miller Avenue6 PM 42.9 D+ 43.9 D +1.0 +0.016 16. Stevens Creek AM 30.4 C 30.4 C +0.4 +0.026 Boulevard/ Finch A venue PM 17.0 B 21.3 C+ +6,5 +0.252 City of Cupertino Toll Brothers/Calabazas Place Project 130 Initial Study December 2005 Table 14 Background and Project Intersection Levels of Service Back!!round Proiect - Condo Ontion B Intersection Peak Change in Change in Hour' Delay' LOSJ Delay! LOSJ Critical Critical Delavs Delav4 17. Stevens Creek AM 19.4 B- 19.5 B- -0.0 +0.013 Boulevard! Tantau PM 20,6 C+ 19.6 B- -0.9 +0.002 A venue 18. Stevens Creek AM 34,\ C- 33.5 C- +1.1 +0.020 Boulevard/ 1-280 PM 46,\ D 46.5 D +2.1 +0.011 Ramps 19. Stevens Creek AM 22,0 C+ 22.\ C+ +0.0 -0.009 Boulevard/ Lawrence Expressway (W) 6 PM 26,7 C 26.4 C +0.1 +0.017 20. Stevens Creek AM 37,7 D+ 37.4 D+ -0.2 -0.010 Boulevard/ Lawrence Expressway (E) 6 PM 39.2 D 40.0 D +0.9 +0.019 21. Bollinger Road/ AM 10.6 A \0.7 B+ +0.1 +0.001 Tantau Avenue PM 10,0 A 10.1 B+ +0.1 +0.006 Notes: I AM = morning peak hour, PM = evening peak-hour 1 Whote intersection weighted average control delay expressed in seconds per vehicle for signalized and all-way stop intersections using methodology described in the 2000 Highway Capacity Manual, with adjusted saturated j/ow rates to rej/ect Santa Clara County Conditions. For two-way stop controlled unsignalized intersections, total control delay for the worst movement. expressed in seconds per vehicle, is presented LOS calculations conducted using the TRAFFlX level of service analysis software package. 3 LOS ~ Level of Service , Change in the critical volume-to-capacity ratio (VIC) between Background and Project Conditions, 5 Change in critical movement delay between Background and Project Conditions. A decrease in the critical delay indicates project trips were added to movements with low delays thus causing a decrease in the overall critical delay. 6 Designated CM? intersection. 7 Side-street stop control under Background Conditions and all-way stop controlled intersection under Project Conditions, Freeway Segment Analysis According to Santa Clara County CMP guidelines, freeway segments to which a proposed development is projected to add trips equal to or greater than one percent of the freeway segment's capacity must be evaluated in detail. The closest segments of 1-280 were reviewed to determine if the minimum threshold of project-generated traffic would be added to these freeway segments, Capacities of 2,300 vehicles per hour per lane (vphpl) for freeway segments with six or more lanes were used in the freeway analysis. To be conservative, no project trips were assigned to HOV lanes. Table 15 lists the capacities of the freeway segments, the estimated City of Cupertino Toll Brothers/Calabazas Place Project 131 Initial Study December 2005 number of trips added to the segment by the project, and whether or not the freeway segments must be evaluated in greater detail. Table 15 Freewav Se!!ment Analvsis Segment Peak Capacity 1 1% of Project Requires Hour Canacitv Trios2 Analvsis2 Eastbound 1-280, AM 6,900 69 33 No Saratoga A venue to PM 6,900 69 3 No Lawrence Exoressway Westbound 1-280, AM 6,900 69 -41 No Saratoga A venue to PM 6,900 69 58 No Lawrence Exnresswav Eastbound 1-280, AM 6,900 69 8 No Lawrence Expressway to Wolfe Road PM 6,900 69 -6 No Westbound 1-280, AM 6,900 69 -9 No Lawrence Expressway PM 6,900 69 II No to Wolfe Road Eastbound 1-280, Wolfe AM 6,900 69 -24 No Road to De Anza Boulevard PM 6,900 69 37 No Westbound 1-280, AM 6,900 69 20 No Wolfe Road to De Anza Boulevard PM 6,900 69 5 No Notes: J A capacity of 2,300 vehicles per hour per lane was used for three-lane mixedllow freeway segments. 2 Proiect trivs reflect net-added vroiect trivs for Condo Ovtion B. The amount of traffic added to each segment is estimated to be less than one percent of the segment's capacity. Therefore, the project's impact on the freeway segments is considered less than significant and no additional analysis is required. Site Access The project site is accessible via driveways on Vallco Parkway, Stevens Creek Boulevard, and Finch A venue, Access to the proposed residential areas would be provided by three driveways along Vallco Parkway and a private roadway between Stevens Creek Boulevard and Vallco Parkway (refer to Figure 5). Access to the retail uses would be provided by two right-turn only driveways on Stevens Creek Boulevard and on driveway on Finch Avenue <refer to Figure 5). City of Cupertino Toll Brothers/Calahazas Place Project 132 Initial Study December 2005 Bicycle and Pedestrian Facilities As discussed previously, the project site has adequate bicycle access via the bike lanes on Wolfe Road, Vallco Parkway, and Tantau Avenue. The project site also has adequate pedestrian facilities: sidewalks are provided on Vallco Parkway, Finch Avenue, and Stevens Creek Boulevard, and most segments ofTantau Avenue. There are no sidewalks, however, on the west side ofTantau Avenue north of Vall co Parkway, including on the bridge over 1-280, The project proposes to install all-way stop controls at the Vallco Parkway intersection just west of Tantau Avenue (refer to Figure 5). With the all-way stop controls, this intersection is projected to operate at LOS B or better during both peak- hours and would provide a designated pedestrian crossing location. For the above reasons, the project would not result in significant bicycle or pedestrian impacts. Sidewalk Along Tantau Avenue The City of Cupertino is considering requiring the construction of a sidewalk along the west side of Tantau Avenue between Vallco Parkway and Pruneridge Avenue as a condition of approval. Parking Residential and Commercial Uses The City of Cupertino's Municipal Code requires two (one covered and one uncovered) parking spaces for every condominium unit. The City's parking requirement for retail uses depends on the size and land use of buildings. The project applicant has indicated that there would be two restaurants, one with a bar and one without a bar, 19,000 square feet of specialty retail, and 87,000 square feet of general retail. Based on above information and the City's parking requirements, the project would need to provide a total of 1,271 parking spaces, including 738 residential parking spaces and 533 retail and restaurant parking spaces (refer to Table 2). The project proposes to provide a total of 1,261 on-site parking spaces, including 856 residential parking spaces and 405 commercial parking spaces (refer to Table 2). Parking for the proposed residential development would be provided by underground parking garages and surface parking lots (refer to Figure 5). Parking for the proposed commercial uses would be provided by a surface parking lot (refer to Figure 5). The project proposes sufficient parking for the proposed residential uses. The proposed on-site parking for the proposed retail and restaurant development, however, does not meet City parking requirements. The proposed commercial development would be short 128 parking spaces (refer to Table 2). The project proposes to install 68 angled parking spaces on both sides of Finch Avenue and 47 angled and parallel parking spaces on Vallco Parkway. It is likely City of Cupertino Toll Brothers/Calabazas Place Project 133 Initial Study December 2005 that the on-street parking spaces along Finch Avenue and Vallco Parkway would be used by guests, residents, and public park users (see discussion below), in addition to retail customers, Retail parking demand, therefore, could spillover to adjacent parcels such as the adjacent HP property on Vallco Parkway and Vallco Shopping Center. Park Use The project includes rezoning 3,5 acres of the site west of Finch Avenue as PR- Public Park (refer to Figures 4 and 5), The design of future park facilities within the 3.5 acres of the site has not been prepared. At this time, the City anticipates that the approximately 2,8 acre square shaped area along Stevens Creek Boulevard could be an active use park with playing fields for soccer, cricket, volleyball, or frisbee. The City anticipates that the approximately 0.7 acre triangular shaped area along the west side of Finch A venue could be a passive park with open grass areas, a tot lot, and picnic tables. A parking analysis for the 3.5 acre public park was completed by Fehr & Peers in December 2005. A complete copy of this analysis is included in Appendix J of this Initial Study. As mentioned above, future park uses are anticipated to include soccer, cricket, volleyball, or frisbee. It was assumed that the different sports would be scheduled so games and practices do not overlap. The practices would typically occur on weekdays between 3:00 PM and 7:00 PM. The park would likely have one soccer field, one cricket field, or up to two volleyball nets set up, A weekday schedule may include two back-to-back soccer practices from 3:30 PM to 6:30 PM with approximately 15 players per practice or volleyball practices from 5:00 PM to 7:00 PM with approximately eight players per net. Saturday games for volleyball typically occur between 8:30 AM and 11 :30 AM with a cricket game form 12:00 PM to 7:00 PM. Games at a future park are expected to have a higher parking demand than the practices since there would be more players as well as referees and spectators. Assuming an automobile occupancy rate of 2.0 persons per vehicle for a soccer game and 0.8 spectators per player, it was estimated that there would be a parking demand of30 spaces, If there were back to back games, there would be another 15 parking spaces needed for the overlap of people coming before the pervious game ended. The total parking demand for soccer use is estimated to be 45 spaces. Assuming two volleyball courts on game day and an auto occupancy rate of 1.2 persons per vehicle, the parking demand for volleyball games is estimated to be 38 spaces. Table 16 summarizes the parking demand estimated for the park on a weekend game day. A cricket game is expected to have similar number of players as a soccer game with fewer spectators since the games last longer, therefore, the parking demand for cricket games would be less than the soccer parking demand. As shown in Table 16, back to back soccer games would generate the highest demand of 45 parking spaces on a weekend day. City of Cupertino Toll Brothers/Calahazas Place Project 134 Initial Study December 2005 Table 16 Anticipated Parking Demand for Active Park Uses Weekend Davs Use Players Coaches Referees Spectators Parking Demand Soccer 30 3 2 24 45 Volleyball 32 4 2 8 38 Notes: I Assumes two back to back soccer games, One soccer game would have a parking demand of 30 spaces, 2 Automobile occupancy of2,O persons per vehicle for soccer and },2 persons per vehicle for volleyball, 32,0 spectators per player for soccer and 2 spectators per teamfor volleyball, Summary of Provided Parking As noted above, the residential development on the site would provide an adequate number of parking spaces for residents and guests per the City of Cupertino's parking requirements. Table 17 provides a summary of parking demand and supply for commercial and anticipated future park uses. Table 17 Summary of Parking Demand and Snpply Commercial and Park Uses Number of Spaces Estimated Parkin!! Demand Commercial Development 533 Public Park (Active Uses) 45 Total Parkin/[ Demand (A) 578 Parkin!! Supply On-Site Commercial Spaces 405 New Street Parking Spaces - Finch A venue 68 - Vallco Parkway 47 Total Parkin!! Supply (BJ 520 Parking Deficit (A - B) 58 City of Cupertino Toll Brothers/Calabazas Place Project 135 Initial Study December 2005 There would be a combined deficit of 58 spaces for anticipated commercial and park uses during peak use periods on weekends. The parking demand for the commercial uses and park, therefore, may spill over into adjacent properties such as the HP property and Vallco Shopping Center. Impact: The parking demand for proposed commercial uses and anticipated active park uses could exceed parking supply during peak use periods. Parking spill over to nearby properties could occur. Mitigation and Avoidance Measure: The project includes the following measures to ensure that adequate parking is provided for proposed commercial and park uses: · Building permits for commercial development shall be issued for retail and restaurant uses for which adequate parking is provided based upon a review by the Department of Community Development and Department of Public Works. · Prior to the issuance of building permits for commercial development that does not provide parking spaces per the City of Cupertino Municipal Code, a design level parking analysis shall be submitted to the Public Works Department for review and approval. The parking analysis shall address required and provided parking based upon the final design of the commercial development and the anticipated commercial mix. Measures included in the parking analysis and incorporated in the final design and conditions for the commercial development to avoid or reduce potential parking deficiencies may include, but are not limited to: the provision of valet parking (either on-site or at an off-site location); the provision of off-site employee parking with a shuttle; the provision of off-site shared use with nearby property owners (such as Hewlett-Packard) during evening and weekend periods; the provision of additional on-street parking along the north side of Vallco Parkway. · The project applicant or sponsor shall conduct a parking monitoring program approximately six months after full occupancy of the commercial uses on the site, or as directed by the City of Cupertino Community Development Director. The monitoring program shall record the number of parked vehicles during peak time periods. If parking demand is found to exceed parking supply, one or more of the strategies identified in the design level parking analysis (such as the use of valet parking or off-site parking by employees) shall be employed to avoid parking impacts. Neighborhood Traffic The primary access routes to the project site are Stevens Creek Boulevard to Finch Avenue and Tantau Avenue, and Wolfe Road to Vallco Parkway. Most of the project traffic is expected to use these streets to access the project site. Neighborhood streets City of Cupertino Toll Brothers/Calahazas Place Project 136 Initial Study December 2005 to which the project could add traffic include Finch, Tantau, Judy, Bret, or Stem A venues, Currently, southbound traffic on Finch and Tantau Avenues north of Stevens Creek Boulevard are restricted to turning left or right onto Stevens Creek Boulevard. It is estimated that project trips on these streets would be generated by residents traveling to the proposed retail portion of the project or the future park. Based on the project trip distribution, up to 50 peak-hour trips could be distributed to all of these streets. With the addition of an average of 10 vehicles per street in the peak hour, the average increase would be an additional vehicle every six minutes. This is not expected to substantially affect traffic in neighborhood streets. Construction Traffic Construction vehicles, including construction employee vehicles and trucks carrying construction materials or hauling excavated soil from the site, will travel to and from the site as a part of site development. Truck trips will be spread out over daylight hours. Construction traffic would be well below the daily (5,761 trips) or peak hour traffic anticipated from build-out of the project. Mitigation and Avoidance Measures: The project includes the following City of Cupertino standard mitigation measure to avoid localized transportation impacts during construction: . Prior to the issuance of building permits, a Construction Management Plan will be submitted to the Director of Public Works for review and approval. The Plan will include, at minimum, a traffic management plan and designated truck routes and construction parking areas. Cumulative Conditions The following discussion is an analysis of cumulative conditions. Cumulative conditions are defined as existing volumes of traffic, plus traffic generated by approved but not yet constructed developments in the project area, plus traffic generated by pending developments, and traffic generated by the proposed project. A list of pending projects was obtained from the Cities of Cupertino, Sunnyvale, and Santa Clara. The description and assignment of pending projects's trips to each intersection is provided in Appendix J of this Initial Study. The City is considering removing the existing traffic signal and installation of a roundabout at the intersection of Pruneridge A venue and Tantau A venue, therefore, the replacement of the existing traffic signal with a roundabout at the Pruneridge A venue and Tantau A venue intersection was assumed under cumulative roadway conditions, City of Cupertino Toll Brothers/Calabazas Place Project 137 Initial Study December 2005 Cumulative Intersection Levels of Service Intersection operations were evaluated with level of service calculations under cumulative conditions and compared with background conditions in Table 18. The background conditions serve as a baseline for determining cumulative impacts. As shown in Table 18, the intersection of Homestead Road and Lawrence Expressway is projected to continue to operate at LOS F during the PM peak hour under cumulative conditions and the Vallco Parkway and Wolfe Road intersection is project to degrade to LOS E during the PM peak hour under cumulative conditions. The remaining intersections are projected to operate at LOS D or better during both peak hours. Table 18 Back"round and Cumnlative Intersection Levels of Service Background Cumulative Conditions Peak Conditions Intersection Hour' Change Change 2 LOS' 2 LOS' Delay Delay in Crit. inCrit. DeIav · V/C' 1. Wolfe Roadl AM 26,9 C 27,2 C +0.6 +0.021 Homestead Road PM 46,7 D 48.1 D +2.8 +0.043 2. Homestead Roadl AM 20,5 C+ 20.2 C+ -0.5 -0.006 Tantau A venue PM 21.3 C+ 22,1 C+ +1.1 +0.032 3, Homestead Roadl AM 47,3 D 48,0 D 0.7 +0.022 Lawrence Exoresswav' PM 92.5 f 98,6 f 3.1 +0.025 4, Wolfe Roadl AM 20,2 C+ 21.2 C+ +1.4 +0.031 Prunerid~e A venue PM 31.7 C 32.5 C- +0.8 +0.032 5, Pruneridge A venuel AM 21.3 C+ 21.3 C+ +0.2 +0.013 Tantau A venue PM 22.7 C 21.8 C+ -1.3 -0.007 6, Wolfe Roadll-280 AM 12,9 B 13.0 B +0.3 +0.021 Northbound ramos' PM 13.7 B 15.7 B +3.2 +0,056 7. Wolfe Road/l-280 AM 11.2 B+ 11.2 B+ +0.2 +0.029 Southbound ramos' PM 11.0 B+ 11.7 B+ +1.2 +0.062 8. Wolfe Roadl AM 19.1 B- 19.5 B- +0,2 +0.012 Vallco Parkwav PM 60.0 E+ 67.6 E +5.0 +0.023 9. ValJco Parkwayl AM 11.8 B 8.3 A N/A N/A finch A venue 7 PM 13.5 B 11.3 B N/A N/A 10. ValJco Parkwayl AM 11,9 B+ 12.1 B -7.6 +0.03 Tantau A venue PM 17.2 B 16.9 B -0.6 -0.025 11. Stevens Creek AM 32.9 C- 33,5 C- +0.9 +0.011 Boulevard and De Anza Boulevard' PM 38.8 D+ 39.7 D +1.0 +0.012 12. Stevens Creek AM 18,0 B- 18,0 B -0.1 +0.014 Boulevardl Blaney PM 29.1 C 29,5 C +1.2 +0.045 A venue 13. Stevens Creek AM 10,9 B+ 10.8 B+ +0.0 +0.013 Boulevardl Portal A venue PM 14.6 B 14,5 B +0.2 +0.031 14, Stevens Creek AM 8,3 A 8.5 A +0.1 +0.012 Boulevardl Perimeter Road PM 16,1 B 15.9 B -0.4 +0,020 City of Cupertino Toll BrotherslCalabazas Place Project 138 Initial Study December 2005 Table 18 Back!!round and Cumulative Intersection Levels of Service Background Cumulative Conditions Peak Conditions Intersection Hour' Change Change 2 LOS' 2 LOS' inCrit. Delay Delay in Crit. Delav' V/C' 15. Stevens Creek Boulevardl Wolfe AM 37.0 D+ 37,3 D+ +0.4 +0.019 Road-Miller PM 42,9 D+ 45.5 D +3.2 +0.044 A venue6 16. Stevens Creek AM 30.4 C 30.5 C +0.4 +0.026 Boulevardl Finch PM ]7,0 B 20,3 C+ +4.5 +0.232 A venue 17, Stevens Creek AM 19.4 B- 19,6 B- -0.0 +0.018 Boulevardl Tantau PM 20,6 C+ 19,6 B- -0.9 +0.008 A venue 18, Stevens Creek AM 34,1 C- 33,8 C- +2.2 +0.037 Boulevardll-280 Ramps PM 46,1 D 49,2 D +7.1 +0.031 19. Stevens Creek Boulevardl AM 22,0 C+ 23.9 C +2.1 +0.023 Lawrence PM 26.7 C 28.4 C +2.3 +0.062 Ex Dress way (W) 6 20. Stevens Creek Boulevardl AM 37.7 D+ 37.6 D+ +0.0 -0,003 Lawrence PM 39,2 D 41.3 D +2.4 +0.042 Expresswav (E) 6 21. Bollinger Roadl AM 10.6 A 10.7 B+ +0.1 +0,002 Tantau A venue PM 10.0 A 10.1 B+ +0.1 +0.007 Notes: Bold indicates a significant cumulative impact. I AM~morning peak hour. PM~evening peak hour , Whole intersection weighted average control delay expressed in seconds per vehicle for signalized and all-way stop intersections using methodology described in the 2000 Highway Capacity Manual, with adjusted saturation flow rates to reflect Santa Clara County Conditions. For two-way stop controlled unsignalized intersections. total control delay for the worst movement, expressed in seconds per vehicle. is presented. LOS calculations conducted using the TRAFFIX level of service analysis software package. 3 LOS=level of service 4 Change in critical movement delay between background and cumulative conditions. A decrease in the critical delay indicates project trips were added to movements with low delays thus causing a decrease in the overall critical delay. S Change in the critical volume-to-capacity ratio (V/C) between background and cumulative conditions. 6 Designated CMP intersection 7 Side-street stop control under background conditions and all-way stop controlled intersection under cumulative conditions. City of Cupertino Toll BrotherslCalabazas Place Project 139 Initial Study December 2005 Cumulative Impacts The intersection of Vall co Parkway and Wolfe Road would operate at unacceptable levels of service under cumulative conditions during the PM peak hour. The project's contribution to this cumulative level of service impact is expressed as the change in critical volume to capacity ratio, as shown in Table 19. Table 19 Cumulative and Cumulative No Project Intersection Levels of Service Cumulative Cumulative Difference No Proiect Peak Project Intersection Hour' Change Change Contribution 2 LOs3 2 LOS3 Delay Delay in Crit. inCri!. to 4 VlC' Cumulative Delay ImDact' 8. Wolfe Road! PM 67,6 E 60.8 E +2.7 +0,011 47.8% VaI1co Parkwav Notes: J PM~evening peak hour ] Whole intersection weighted average control delay expressed in seconds per vehicle for signalized and aI/- way stop intersections using methodology described in the 2000 Highway Capacity Manual, with adjusted saturationj/ow rates to rej/ect Santa Clara County Conditions. For two-way stop control/ed unsignalized intersections, total control delay for the worst movement, expressed in seconds per vehicle, is presented. LOS calculations conducted using the TRAFFIX level of service analysis software package, 3 LOS=level of service 4 Change in critical movement delay between Cumulative No Project Conditions and Cumulative Conditions, 5 Change in the critical volume-to-capacity ratio (V/C) between Cumulative No Project Conditions and Cumulative Conditions. 6 Based upon critical v/c. The project's contribution to the cumulative impact at Wolfe Road and Vallco Parkway is 47.8 percent in the PM peak hour. This is considered a cumulatively considerable contribution, Impact: The proposed project would make a cumulatively considerable contribution to a significant cumulative impact at the intersection of Wolfe Road and Vallco Parkway. Mitigation and Avoidance Measures: The project proposes the following mitigation measure to improve the operations at the Vallco Parkway and Wolfe Road intersection: . Restripe the westbound through lane on Vallco Parkway to a shared through/right lane City of Cupertino Toll BrotherslCalahazas Place Project 140 Initial Study Decemher 2005 Implementation of this measure would allow for operation of this intersection at LOS D under cumulative conditions, reducing cumulative traffic impacts at the Wolfe Road and Vallco parkway intersection to a less than significant level. 3. Conclusion The proposed project, with the implementation of the above mitigation measures, would not result in significant project specific or cumulatively considerable impacts to transportation facilities, (Less Than Significant Impact with Mitigation Incorporated) City of Cupertino Toll BrotherslCalabazas Place Project 141 Initial Study December 2005 P. UTILITIES AND SERVICE SYSTEMS 1. Settin!! Water The City has two major water suppliers: California Water Service (CaIWater) and San José Water Company. The project site is served by CalWater. The project site is served by existing six-inch to 14-inch water lines located in Vallco Parkway, Stevens Creek Boulevard, Finch A venue, and Tantau A venue. Storm Drainage The City's storm drain system is made up of underground pipelines. These pipes carry surface runoff from streets to prevent flooding. Runoff (storm water and runoff from landscape irrigation and other urban sources) enters the system at the grated catch basins found along the curb near street intersections. Water from these pipes is discharged, untreated, directly into City creeks. Cupertino's creeks eventually flow into the San Francisco Bay. The project site is served by existing IO-inch to 30-inch storm drain lines in the northern portion of the project site (parallel to 1-280), Vallco Parkway, Stevens Creek Boulevard, Finch Avenue, and Tantau Avenue. These storm drain lines discharge to Calabazas Creek, Wastewater/Sanitary Sewer System The Cupertino Sanitary District serves the project site. The Cupertino Sanitary District collects and transports wastewater to the San José/Santa Clara Water Pollution Control Plant (WPCP) located in North San José, The District purchases water treatment capacity from the plant and has purchased 8.6 million gallons per day of capacity. Currently, an average of approximately 4.5 million gallons of wastewater a day is generated within the Cupertino Sanitary District and conveyed to the WPCP.27 The City is well below their allotted capacity at the WPCP. The project site is served by existing four-inch to 12-inch sanitary sewer lines located in the northern portion of the project site (parallel to 1-280), Vallco Parkway, Finch Avenue, and Tantau Avenue. Solid Waste Commercial and residential garbage and recycling services in the project area are provided by the Los Altos Garbage Company. The City has a contract with Newby Island Landfill until the year 2023,28 Many types of recyclable materials can also be delivered to the Sunnyvale Materials Recovery Station (SMART Station) for recycling. 27 Gary Chao, Planner, City of Cupertino, written communications (Email), 13 September 2005, 28 Gary Chao, Planner, City of Cupertino, written communications (Email), 14 September 2005. City of Cupertino Toll Brothers/Calabazas Place Project 142 Initial Study December 2005 2. Environmental Checklist and Discnssion UTILITIES AND SERVICE SYSTEMS Less Than Potentially Significant Less Than Beneficial Information Significant With Significant No Impact Impact Source(s) Impact Mitigation Impact Incomorated Would the project: I) Exceed wastewater treatment 0 0 ¡gj 0 0 1 requirements of the applicable Regional Water Quality Control Board? 2) Require or result in the construction 0 0 ¡gj 0 0 I of new water or wastewater treatment facilities or expansion of existing facilities, the construction of which could cause significant environmental effects? 3) Require or result in the construction 0 0 ¡gj 0 0 1 of new storm water drainage facilities or expansion of existing facilities, the construction of which could cause significant environmental effects? 4) Have sufficient water supplies 0 0 ¡gj 0 0 I available to serve the project from existing entitlements and resources, or are new or expanded entitlements needed? 5) Result in a determination by the 0 0 ¡gj 0 0 1 wastewater treatment provider which serves or may serve the project that it has adequate capacity to serve the project's projected demand in addition to the provider's existing commitments? 6) Be served by a landfill with 0 0 ¡gj 0 0 1 sufficient permitted capacity to accommodate the project's solid waste disposal needs? 7) Comply with federal, state, and local 0 0 0 ¡gj 0 1 statutes and regulations related to solid waste? Discnssion; The project proposes to rezone the project site to allow for the construction of 402 new residential units (Senior Option A) or 369 new residential units (Condo Option B), up to 120,000 square feet of commercial/retail uses, and 3.5 acres of parkland. City of Cupertino Toll BrotherslCalabazas Place Project 143 Initial Study December 2005 Water Supply In accordance with state law (SB 610) and CEQA, "a project that would demand an amount of water equivalent to, or greater than, the amount of water required by a 500 dwelling unit project (Water Code Section 10912 (a)(7)" must provide an analysis of whether there is adequate water supply available to serve the proposed development. The amount of water used by a 500 dwelling unit is estimated to range from 35.7 million to 81,5 mi lIion gallons of water a year. The proposed project would use approximately 23.6 million gallons of water a year, which is less the amount estimated for a 500 dwelling units,'· Therefore, a water supply assessment is not warranted, According to CalWater, there is sufficient water supply to serve either option under proposed by the project.30 CalWater does not anticipate the need for the construction of new water facilities, or water infrastructure improvements to serve the proposed project.3I For these reasons, the proposed project would not result in significant water supply impacts. Storm Drainage As discussed in Section IV.H Hydrology and Water Quality, two storm drain systems serving the project site are over capacity. The project proposes new connections to existing storm drain lines to divert runoff from existing over capacity lines to existing storm drain lines that are under capacity. The project also proposes two, 24-inch storm drain line connections to the existing culvert. With the diversion of runoff from existing over capacitated storm drain lines to under capacitated lines and the connections to the existing culvert, the ~roposed project would not exceed the capacity of the existing storm drain system. 2 Wastewater/Sanitary Sewer System The proposed project is estimated to generate approximately 55,029 gallons of sewage a day,33 Based upon the City's current average daily sewage generation of 4.5 million gallons and the project's estimated generation of 55,029 gallons of sewage a day, the proposed project would not exceed the City's allotted amount of 8.6 million gallons per day of capacity at the WPCP. For this reason, the proposed project would not result in significant impacts to the WPCP or require new wastewater treatment facilities, 29 BKF Engineers, Calabazas Place. CUDertino. SB-610 Analvsis, I November 2005. 30 Devi Prasanna, Associate Engineer. CalWater, personal communications. October-November 2005. 31 Oevi Prasanna, Associate Engineer, CalWater, written communications (Email) to David J. Powers & Associates, Inc, 17 Novemher 2005, 32 BKF Engineers, Calabazas Place. CUDertino. Existing Strom Drain and Sanitary Sewer CaDacitv Studv. 27 October 2005, 33 BKF Engineers. Calabazas Place. CUDertino. SB-61 0 Analvsis, I November 2005, Memo states that proposed project would use approximately 64,740 gallons of water a day. Generally, sewage generation is 85 percent of water usage, Therefore, 85% of64,740 gallons is 55,029 gallons. City of Cupertino Toll BrotherslCalahazas Place Project 144 Initial Study December 2005 According to the Cupertino Sanitary Sewer district, most of the existing sanitary sewer system has capacity to accommodate the proposed project. It is unknown at this time if the sewer lines at the northern boundary of the project site and in Tantau Avenue between 1-280 and Pruneridge Avenue have capacity to serve the proposed project. Since the proposed project would increase the amount of sewage generated from the site and the exact amount of remaining capacity of the sewer lines located in the northern portion of the project site and in Tantau Avenue (from 1-280 to Pruneridge A venue) is unknown, the project may exceed the existing sewer main . 34 capactty, Impact: The proposed project will increase sewage flow from the site and may exceed the capacity of existing sewer lines in the vicinity. Mitigation and Avoidance Measures: The project proposes the following mitigation and avoidance measures to reduce sewer line capacity impacts: . A sewer flow test shall be completed prior to issuance of the conditional use permit. If it is determined that the proposed project would exceed the capacity of the existing sewer lines at or downstream of the site, the project shall, in coordination with the City of Cupertino Department of Public Works and the Cupertino Sanitary District, upgrade the sewer lines and connections to provide capacity to serve the project. Solid Waste The proposed project would generate a net increase of up to approximately 49,800 pounds of solid waste a week.35 As discussed above, there is sufficient capacity at Newby Island Landfill to serve the proposed project. For this reason, it is not anticipated that the proposed project would result in significant solid waste impacts. 3. Conclusion The proposed project, with the implementation of the above mitigation and avoidance measure, would not result in significant utilities and service impacts. (Less Than Significant Impact with Mitigation Incorporated) 34 BKF Engineers. Calabazas Place. Cupertino. Existing Stann Drain and Sanitary Sewer Capacity Study. 27 October 2005, 35 Project waste generation was based upon multi-family residential waste generation rate of 30 pounds per unit per week and commercial/retail waste generation rate of 0,046 pounds per square foot per day, Sources; I) Zirelli, John, Los Altos Garbage, Personal communications, 19 September 2005. 2) State of California Integrated Waste Management Board, Estimated Solid Waste Generation Rates for Commercial Establishments,S January 2005, State of California, 5 February 2005, http;//www.ciwmb.ca.gov/wastechar/WasteGenRates/WGCommer.htm , City of Cupertino Toll Brothers/Calabazas Place Project 145 Initial Study December 2005 Q. MANDATORY FINDINGS OF SIGNIFICANCE Less Than Potentially Significant Less Than Beneficial Infonnation Significant With Significant No Impact Impact Source(s) Impact Mitigation Impact Incorporated 1) Does the project have the potential to degrade D ~ D D D p.28- the quality of the environment, substantially 145 reduce the habitat of a fish or wildlife species, cause a fish or wildlife population to drop below self-sustaining levels, threaten to eliminate a plant or animal community, reduce the number or restrict the range of a rare or endangered plant or animal or eliminate important examples of the major periods of California history or prehistory? 2) Does the project have impacts that are D ~ D D D p.28- individually limited, but cumulatively 145 considerable? ("Cumulatively considerable" means that the incremental effects of a project are considerable when viewed in connection with the effects of past projects, the effects of other current projects, and the effects of probable future projects)? 3) Does the project have environmental effects D ~ D D D p.28- which will cause substantial adverse effects on 145 human beings, either directly or indirectly? Discussion: The proposed project would not result in significant environmental impacts with the implementation of the mitigation measures included in the project and described in specific sections of this Initial Study (refer to the specific discussions in Section IV. Environmental Setting, Checklist, and Discussion of Impacts, on pages 28-145 of this Initial Study). Based upon a traffic impact analysis, the project would result in cumulatively considerable transportation impact to the Wolfe Road and Vallco Parkway intersection. The incorporation of the mitigation measure identified in Section IV.O. Transportation would allow for operation of this intersection at LOS D under cumulative conditions, reducing the cumulative traffic impact at the Wolfe Road and Vallco Parkway intersection to a less than significant level. The school fiscal and enrollment report prepared for the proposed project (Townhall Services, 2005) included a cumulative analysis of the proposed project and other projects that are either pending, approved, and/or under construction. It was concluded that Cupertino Union Elementary and Fremont Union High School districts, with modest additions if needed, would be able to accommodate students from the cumulative projects. Therefore, the project would not result in cumulatively considerable impacts to school facilities, City of Cupertino Toll BrotherslCalahazas Place Project 146 Initial Study December 2005 CHECKLIST INFORMATION SOURCES 1. Professional judgment and expertise of the environmental specialist preparing this assessment, based upon a review of the site and surrounding conditions, as well as a review of the project plans, 2. City of Cupertino, General Plan. November 2005. 3. California Department of Conservation. Santa Clara County Important Farmland 2002, Map, 4. Illingworth & Rodkin, Inc. Air Ouality Assessment of 1-280 Traffic On The Calabazas Place Proiect Cupertino, California, 5 October 2005. 5. Live Oak Associates, Inc. Biological Evaluation for the Toll Brother's Proiect. October 2005, 6. City of Cupertino, City of Cupertino, Municipal Code, 2005, City of Cupertino. 19 October 2005, http://www.amlegal.com/nxt/ gatewav.d IIICal i forn i a/ cuperti no/ ci tvo fcupertinocalifom iamuni c i palcode?f~temp lates$fn=defau It. htm$3. O$vid~am legal :cu pertino ca. 7. Barrie Coate and Associates. Evaluation of Trees at Finch Avenue and Stevens Creek Boulevard and Vallco Parkwav and North Tantau Avenue, Cupertino. 21 July 2005, 8. Holman & Associates, Cultural Resources Report. 25 April 2001. 9. ENGEO Incorporated. Preliminary Geotechnical Assessment Finch Avenue Site Cupertino, California. 21 April 2004, 10. ENGEO Incorporated. Modified Environmental Site Assessment Update Finch Avenue Site Cupertino. California, 20 April 2004. 11. Illingworth & Rodkin, Inc. Environmental Noise Assessment For The Calabazas Place Proiect Cupertino, California. 7 October 2005. 12, Fehr & Peers, Transportation Impact Analvsis: Calabazas Place. September 2005. 13. Illingworth & Rodkin, Inc. Air Oualitv Assessment of 1-280 Traffic On The Calabazas Place Proiect Cupertino, California. 5 October 2005. City of Cupertino Toll BrotherslCalahazas Place Project 147 Initial Study December 2005 V. REFERENCES Association of Bay Area Governments. Dam Failure Inundation Hazard Map for Cupertino. 20 October 2003. ABAG, 19 September 2005. http://www.abag.ca.gov/cgi- bin/pickdamx.pl. Association of Bay Area Governments. Proiections 2005. Oakland: Association of Bay Area Governments. 2004. Barrie Coate and Associates. Evaluation of Trees at Finch A venue and Stevens Creek Boulevard and Vallco Parkwav and North Tantau Avenue. Cupertino. 21 July 2005. Barrie Coate and Associates, Addendum to Tree Survev Report Dated Julv 21 st. 2005 For Toll of Cupertino. 30 October 2005. BKF Engineers. Calabazas Place. Cupertino. Existing Storm Drain and Sanitary Sewer Capacity Studv, 27 October 2005. Chao, Gary. Planner, City of Cupertino, Written communications (Email). 13 September 2005, Chao, Gary. Planner, City of Cupertino. Written communications (Email). 14 September 2005. City of Cupertino. Citv of Cupertino. Municipal Code. 2005. City of Cupertino. 19 October 2005. http://www.amlegal.com/nxt/ gatewav.d II/Cal i fornial cupertino/ci tvofcupertinocali forn iam un ic i palcode ?f=temp lates$ fn=detàu It.htm$3. O$vid=am lega I :cupertino ca. City of Cupertino. Final Environmental Impact Report. Approved 15 November 2005. City of Cupertino. The City of Cupertino General Plan. Updated 19 January 1998. County of Santa Clara. Santa Clara County Fire Department. 2004, County of Santa Clara. 2 September 2005. http://www.scvmed.org/channeI/0.4990.chid%253D5 8863%2526sid%253D I 071 0.00 .html. County of Santa Clara. Santa Clara County Fire Department. 2004. County of Santa Clara. 2 September 2005. http://www.scvmed.org/channeI/0.4990.chid%25 3 D58863%2526sid%253D I 071 0.00 .html. County of Santa Clara, Santa Clara County Office of the Sheriff. 2004. County of Santa Clara. 2 September 2005, http://www.sccgov.org/site/0.4760.sid=12655.00.html. City of Cupertino Toll BrotherslCalabazas Place Project 148 Initial Study December 2005 ENGEO Incorporated. Modified Environmental Site Assessment Update Finch Avenue Site Cupertino. California, 20 April 2004. ENGEO Incorporated, Preliminary Geotechnical Assessment Finch Avenue Site Cupertino. California, 21 April 2004. Federal Emergency Management Agency. Flood Insurance Rate Map. Community-Panel Number 060339 0004 C. I May 1980, Fehr & Peers. Transportation Impact Analysis: Calabazas Place. December 2005. Holman & Associates. Cultural Resources Report. 25 April 200 I, Illingworth & Rodkin, Inc. Air Oualitv Assessment of 1-280 Traffic On The Calabazas Place Proiect Cupertino. California, 5 October 2005, Illingworth & Rodkin, Inc, Environmental Noise Assessment For The Calabazas Place Proiect Cupertino. California. 7 October 2005. Live Oak Associates, Inc. Biological Evaluation for the Toll Brother's Proiect. October 2005. State of California Integrated Waste Management Board. Estimated Solid Waste Generation Rates for Commercial Establishments. 5 January 2005. State of California. 5 February 2005. http://www.ciwmb.ca.gov/wastechar/WasteGenRates/WGCommer.htm. Townhall Services. Draft Calabazas Place Development Toll Brothers. Inc. Fiscal and Enrollment Impact Analysis. November 2005, Zirelli, John. Los Altos Garbage, Personal communications. 19 September 2005. City of Cupertino Toll BrotherslCalabazas Place Project 149 Initial Study December 2005 VI. AUTHOR AND CONSULTANTS Author: City of Cupertino Community Development Department Gary Chao, Project Manager Consultants: David J. Powers & Associates, Inc. Environmental Consultants and Planners Michelle Yesney, Principal Nora Monette, Senior Project Manager Kristy Le, Assistant Project Manager Stephanie Grotton, Graphic Artist . Barrie Coate and Associates Horticultural Consultants Michael Bench, Consulting Arborist BKF Engineers Engineers, Surveyors, and Planners Scott Schork, Project Manager Jeremy Marello, Project Engineer Thanh Nguyen, Associate Ramiro Ortiz, Associate ENGEO Incorporated Geotechnical and Environmental Consultants Paul Guerin, Vice President Shawn Munger, Principal Micah Silvey, Engineer Fehr & Peers Transportation Consultants Kristiann Choy, Project Manager Holman & Associates Archaeological Consultants Miley Holman, Principal City of Cupertino Toll BrotherslCalabazas Place Project ISO Initial Study December 2005 Consultants (cont,): Illingworth & Rodkin, Inc. Acoustics and Air Quality Consultants Richard Illingworth, Principal James Reyff, Project Manager Live Oak Associates, Inc. Ecological Consultants Rick Hopkins, Principal and Senior Wildlife Ecologist Michele Korpos, Project Manager and Wildlife Ecologist City of Cupertino Toll BrotherslCalabazas Place Project 151 Initial Study December 2005 INITIAL STUDY FOR THE: Toll Brothers/ Calabazas Place Project V olume II of II - Technical Appendices .- . Cupertino, California December 2005 Table of Contents VOLUME II OF II - TECHNICAL APPENDICES Appendix A Appendix B Appendix C Appendix D Appendix E Appendix F Appendix G Appendix H Appendix I Appendix J Air Quality Analysis Biotic Survey Tree Survey and Tree Survey Addendum Cultural Resources Report Geotechnical Analysis Environmental Site Assessment Storm Drain and Sanitary Sewer Capacity Study Noise Analysis School Fiscal and Enrollment Impact Analysis Transportation Analysis APPENDIX A Air Quality Analysis I I I I I I I II ~ AIR QUALITY ASSESSMENT OF 1-280 TRAFFIC ON THE CALABAZAS PLACE PROJECT CUPERTINO, CALIFORNIA October 5, 2005 Prepared for: Kristy Le David J. Powers & Associates 1885 The Alameda, Suite 204 San Jose, CA 95126 Prepared by: James A. Reyff ILLINGWORTH & RODKIN, INC Acoustics· Air Quality 505 Petaluma Boulevard South Petaluma, CA 94952 (707) 766-7700 Job No.: 05-171 Introduction This report is an assessment of the air quality impacts occurring at the proposed Calabazas Place Project proposed in Cupertino, California. The project proposes to develop residential uses near Interstate 280 (\- 280). The traffic on 1-280 is a substantial source of air pollutant emissions. In particular are emissions of diesel particulate matter (DPM), which is an air toxic contaminant due to its potential to cause cancer. Elevated concentrations of carbon monoxide (CO) are also an indicator of air quality impacts rrom traffic, since it is directly emitted from vehicular and found at highest concentrations near areas of high traffic volumes. This assessment contains describes the impacts of air pollution emitted from 1-280 traffic, in terms ofDPM and CO on proposed residences of the project. The proposed project consists of a mixture of residential and commercial uses, The site is bounded by Junipero Serra Freeway (1-280) to the north, Tantau Avenue to the east, Stevens Creek Boulevard to the south, multi-family housing and the Vallco Fashion Park to the west. Senior housing proposed near 1-280 would experience the greatest air quality impacts from existing traffic since 1-280 has a large volume of traffic that includes diesel truck traffic. Overall Regulatory Setting The Federal Clean Air Act governs air quality in the United States. In addition to being subject to federal requirements, air quality in California is also governed by more stringent regulations under the California Clean Air Act. At the Federal level, the United States Environmental Protection Agency (USEPA) administers the Clean Air Act (CAA). The California Clean Air Act is administered by the California Air Resources Board (CARB) at the State level and by the Air Quality Management Districts at the regional and local levels. The Bay Area Air Quality Management District (BAAQMD) regulates air quality at the regional level, which includes the nine-county Bay Area. Criteria Air Pollutants & Effect Air quality studies generally focus on five pollutants that are most commonly measured and regulated: CO, 03, NO" SO" and suspended particulate, i.e., PMIO and PM,." Carbon Monoxide, CO, a colorless and odorless gas, interferes with the transfer of oxygen to the brain. It can cause dizziness and fatigue, and can impair central nervous system functions. CO is emitted almost exclusively rrom the incomplete combustion of fossil fuels. Automobile exhausts release approximately 70 percent of the CO in the Bay Area. A substantial amount also comes from burning wood in fireplaces and wood stoves. CO is a non-reactive air pollutant that dissipates relatively quickly, so ambient CO concentrations generally follows the spatial and temporal distributions of vehicular traffic. The highest CO concentrations measured in the Bay Area are typically recorded during the winter. Ozone. 03, a colorless toxic gas, is the chief component of urban smog. 03 enters the blood stream and interferes with the transfer of oxygen, depriving sensitive tissues in the heart and brain of oxygen. Although 03 is not directly emitted, it forms in the atmosphere through a chemical reaction between reactive organic gas (ROG) and nitrogen oxides (NOx) under sunlight. 1 ROO and NOx are primarily emitted from automobiles and industrial sources. 03 is present in relatively high concentrations within the Bay Area, and the damaging effects of photochemical smog are generally related to the concentration of 03. Highest 03 concentrations occur during summer and early autumn, on days with low wind speeds or stagnant air, warm temperatures, and cloudless skies. This pollutant is addressed at the regional level. ROG and NOx are emitted tTom automobiles and industrial sources, Nitro~en Dioxide. NO" a reddish-brown gas, irritates the lungs, It can cause breathing difficulties at high concentrations. Like OJ, NO, is not directly emitted, but is formed through a reaction between nitric oxide (NO) and atmospheric oxygen. NO and NO, are collectively referred to as nitrogen oxides (NO,) and are major contributors to OJ formation. NO, also contributes to the formation of PMIO (see discussion of PM 10 below), NO, concentrations in the Bay Area are relatively low and do not warrant analysis from land use type projects. Sulfur Oxides. Sulfur oxides, primarily SO" are a product of high-sulfur fuel combustion. The main sources of SO, are coal and oil used in power stations, in industries, and for domestic heating. SO, is an irritant gas that attacks the throat and lungs. It can cause acute respiratory symptoms and diminished ventilator function in children, SO, concentrations have been reduced to levels well below the state and national standards, but further reductions in emissions are needed to attain compliance with standards for PMIO, of which SO, is a contributor. In the Bay Area, SO, is primarily an issue for oil refining. Suspended Particulate Matter. Particulate matter pollution consists of very small particles suspended in the air, which can include smoke, soot, dust, salts, acids, and metals. Particulate matter also forms when industry and gaseous pollutant undergo chemical reactions in the atmosphere, Respirable particulate matter (PMto) and fine particulate matter (PM,.,) represent fractions of particulate matter. PMIO refers to particulate matter less than 10 microns in diameter and PM", refers to particulate matter that is 2.5 microns or less in diameter. Major sources of PM,., results primarily from diesel fuel combustion (from motor vehicles, power generation, industrial facilities), residential fireplaces, and wood stoves. PM,o include all PM,., sources as well as emissions from dust generated by construction, landfills, and agriculture; wildfires and brush/waste burning, industrial sources, windblown dust from open lands, and atmospheric chemical and photochemical reactions. PMIO and PM,., pose a greater health risk than larger-size particles, because these tiny particles can penetrate the human respiratory system's natural defenses and damage the respiratory tract increasing the number and severity of asthma attacks, cause or aggravate bronchitis and other lung diseases, and reduce the body's ability to fight infections. Whereas, larger particles tend to collect in the upper portion of the respiratory system, PM'5 are so tiny that they can penetrate deeper into the lungs and damage lung tissues. Suspended particulates also damage and discolor surfaces on which they settle, as well as produce haze and reduce regional visibility. Toxic Air Contaminants Toxic air contaminants (T AC) are a broad class of compounds known to cause morbidity or mortality (usually because they cause cancer) and include, but are not limited to, the criteria air pollutants listed above. T ACs are found in ambient air, especially in urban areas, and are caused by industry, agriculture, fuel combustion, and commercial operations (e.g., dry cleaners). TACs are typically found in low concentrations, even near their source (e.g., benzene near a freeway). Because chronic exposure can result in adverse health effects, T ACs are regulated at the regional, state, and federal level. Diesel exhaust is the predominant T AC in urban air and is estimated to represent about two-thirds of the cancer risk from TACs (based on the statewide average). According to the CARB, diesel exhaust is a complex mixture of gases, vapors and fine particles. This complexity makes the evaluation of health effects of diesel exhaust a complex scientific issue. Some of the chemicals in diesel exhaust, such as benzene and formaldehyde, have been previously identified as T ACs by the CARB, and are listed as carcinogens either under the state's Proposition 65 or under the federal Hazardous Air Pollutants programs. California has adopted a comprehensive diesel risk reduction program. The U,S. EPA and CARB have adopted low sulfur diesel fuel standards that will reduce diesel particulate matter substantially. These go into effect in June 2006, 2 Project DPM Exposure Backl!Tound Risk Sinceidentitying diesel particulate matter as a toxic air contaminant, the CARB has conducted studies to identity existing health effects from exposure to DPM. The CARB has identified the average year 2000 statewide potential cancer risks at 540 excess cases per million people'. The potential risk near high volume freeways was found to be much higher. The risk is predicted to decrease in the future due to plans to reduce diesel particulate matter emissions from a variety of sources. The 2000 CARB report predicts an average statewide risk at 360 excess cancer cases per million people in 2020. Modeling information compiled by CARB indicates that the cancer risk due to DPM in Cupertino is about 500 excess cases per million people'. Analvsis of Site-Specific DPM Cancer Risk This analysis involved the development of future DPM emissions for traffic on 1-280 using the latest version of the CARB EMF AC2002 emission factor model with defaults for Santa Clara County. DPM emissions are anticipated to decrease in the future. Since this analysis assesses the risk of proposed residences to future exposures, the lower future emissions were taken into account. The EMF AC results were then adjusted to the traffic mix on 1-280 reported by Caltrans'. Emission factors were developed for 2010 and 2020, using the calculated mix of diesel-fueled vehicles. Dispersion modeling was conducted using the CAL3QHCR model, which is acceptable to the Bay Area Air Quality Management District (BAAQMD) for this type of analysis. A 5-year set of meteorological data for Mineta San José International Airport obtained from the BAAQMD was used in the modeling. Other inputs to the model included geometry (based on site plans that you provided), current traffic conditions reported by Caltrans for 1-280, and the DPM emission factors. The plan view showing the project and 1-280 are shown in Figure 1. Results of the modeling along with the inputs are provided in Table 1. Maximum concentrations of DPM would occur at the first row of proposed senior housing closest to 1_ 280, where annual concentrations are predicted to be 0.03 microgram per cubic meter (µg/m') or less. The maximum individual cancer risks were computed using the BAAQMD recommended cancer risk factor of 3 x 10" cancer cases per µg/m' of diesel particulate matter, which are based on "best estimates" of plausible cancer potencies as determined by the California Office Of Environmental Health Hazard Assessment. Over the course of a 70-year lifetime exposure, the incremental risk is calculated to about 6 excess cancer cases per million people at the first row of proposed residences. The DPM concentrations decrease at positions further from the freeway. Under the BAAQMD CEQA Guidelines, an incremental risk of less than ten cases per million at the Maximally Exposed Individual or MEI (in this case being proposed residences near Interstate 280) would result in a less-than-significant impact, Project CO Exposure Carbon monoxide is an air pollutant that is directly emitted from combustion sources (e.g., automobiles) that concentrations can be modeled and compared with ambient air quality standards. Carbon monoxide emissions from 1-280 traffic were predicted where the closest proposed senior housing 2 -California Air Resources Board, Risk Reduction Plan to Reduce Particulate Matter Emissions from Diesel Fueled Engines and Vehicle, s2000, 3 -California Air Resources Board http://www.arb.ca.gov/toxics/ctilhlthrisklcncrinhllriskmapviewfull.htm 4 -Caltrans, Based on 2004 Average Annual Daily Truck Traffic on the California State Highway System- http://www.dot.ca.gov/hq/traffops/saferesr/trafdata! 3 units would be located. There are 1- and 8-hour standards for carbon monoxide. Carbon monoxide concentrations were modeled using the Caline4 Line-Source dispersion model. Peak-hour traffic volumes, carbon monoxide emission rates, meteorological conditions, and the roadway/receptor geometry were used as input. For this assessment, meteorological conditions most conducive for high carbon monoxide concentrations in the Bay Area, peak-hour traffic conditions (i.e., evening period), slow traffic speeds and emission factors generated by the CARB emission factor model (Le., EMFAC2002) were used as input to the model. Modeled concentrations were added to background levels to predict total carbon monoxide concentrations. This assessment was conducted for 20 10 conditions. Results are shown in Table 2. As shown in Table 4, existing 8-hour Carbon Monoxide levels for exposures at about 70 feet and 100 feet from the :\Teeway would be below California Ambient Air Quality Standards used as CEQA thresholds. Emissions rates are forecasted to decrease substantially in the future; therefore, carbon monoxide levels are predicted to remain below ambient air quality standards with the project. As a result, exposure of project residences to carbon monoxide :\Tom 1-280 would be considered a less-than-significant impact. 4 Figure 1 Toll Brothers Inc. Calahazas Place Modeling Source and Receptor Locations Toll Brothers - Calabazas Place DPM Modeling of Residences Close to Highway 4131800 ~ 4131700 ~ .5. 8' 4131800 € :Ii :¡¡ ~ 4131500 4131400 4131300 4131200 587400 587500 587600 587700 587800 587900 588000 588100 588200 588300 588400 UTM Easting (meters) 5 Table 1 CAL3QHCR Modeling Assumptions and Results RoadWft Informatioll Number oCLanes = 8 (4 each direction) Lane Width = 12 feet 2010 2010 2010 2020 2020 2020 Dally TrafJk Voll41M Vecwna" % Diesel Nø. Dksel Vech/Dmt .. DILsd N{J.. Diesel LDA 99,435 0.17% 168 99,435 0.00% 0 LDT 46.793 0.72% 338 46,793 0.68% 318 MJIT 2,298 2A4% 56 2,.298 1.14% 26 HDT 2,474 52.00% 1286 2,474 59.09% 1462 Total 151000 1.22% 1849 151000 1.20% 1806 CAL30HC LiDk/Soorce laformaUon DPM Emission Factors Num or Links - 2 Model EMFAC2002 Link Length = variable County Santa Clara Link Width = 68 feet Source height = 0 ree. Diesel Vehcleslhour = 39 per link 2010 Anrai!'e Emissioa Factors Speed DPMEF(ghnij Veh. We1s!hted Avera.I!'t! (""'hi LDA LDT MIlD HHD 55 - - - 0.138 0.0958 60 - - 0.029 0,0009 65 0.088 0.042 - 0.0157 0.1123 <--Total 2020 AveraGe EmissioD Factors Speed DPM EF (glmii ("",hi LDA LDT MIlD HHD Veh. Weitlltted AverQ,l?'t'!' 55 - - 0.076 0.0615 60 - 0.028 0.0004 65 0.061 0.038 0.0067 0.0686 <--Total Receptor IoformatioD Number of Receptors 37 Reeeptor distances = variable, minimum distance approx 100 ft. Meteorolo2ical CoøditioDs San Jose Airport 1992-1995 & 1997 Hourly Met Data Stability class = variable Wind~~ variable Wind dírection = variable Surface roughness = [50 em CaRcer Risk CalculatioDs Maximum Minimum DPM coac:~ratiOU Meteorological DPM CODceatratioR (u/m~ (UI! m Data Year 2010 2020 2010 2020 1992 0.0319 0.0195 0,0166 0.0101 1993 0.0294 0_0180 0.0151 0.0092 1994 0.0325 0.0199 0.0168 0.0102 tOO5 0.0296 0.0181 0.0152 0.0093 1997 0.03 t3 0.0192 0.0164 0.0100 Average 0.0309 0.0189 0.016 0.010 Cancer Risk" 93 5.7 4.8 2.9 70-yr Cumulative Riskb 6,2 3,2 Notes: Maximum concentrations occur at Receptor ~o. 1 (closest to highway. northeast COl11eC ofrt'sideuces) Minimum concentration occurs at Reccptoc 34 (south-wuthwest comer of residences) Receptor-He:ight"'L8m a Cancer risk calculated assuming constaDt 7o-year expoSUfe to conçentration for year of analysis. b Cumulative cancer risk calculated 3.!>suming variable exposure OYer a 10-yaer period due to decreased concentrations over time. 6 Table 2 Predicted Worst Case Carbon Monoxide Concentrations Resnlting from 1-280 Traffic (in PPM)* Proposed Senior Housing along 1-280 - 70 feet from near lane Proposed Senior Housing along 1-280 - 100 feet from near lane Significance Thresholds CAA S * Includes background level of 6 ppm for I-hour exposure and 4.0 ppm for 8-hour exposures 8ppm 5,5 ppm 7ppm 4.8 ppm 20 ppm 9.0 ppm 7 APPENDIX B Biotic Survey LIVE OAK ASSOCIATES, INC. an Ecological Consulting Firm BIOLOGICAL EVALUATION for the TOLL BROTHER'S PROJECT By: LIVE OAK ASSOCIATES, INC. Rick A. Hopkins, Ph.D., Principal and Senior Wildlife Ecologist Michele Korpos, B.A., Project Manager and Wildlife Ecologist Prepared for: Ms. Nora Monette DA VID J. POWERS AND ASSOCIATES 1885 The Alameda San Jose, California 95126 13 October 2005 PN: 804-01 San Jooe Offl(': 6830 V.. DeIOro, Suite 205 . San Jose. CA 95119 . Phono: 408·281·5885 . fa> 401$-224-141 t Oakhurst OffICe: P,O, SOx 2697.49430 Road 426, Suite 8 . Oakhurst, CA 93644· P110ne 559-642·4880· f.... 559·642-4883 EXECUTIVE SUMMARY Live Oak Associates, Inc. conducted an investigation of the biological resources of an approximately 25.4-acre parcel located in Cupertino, Santa Clara County, California to assess possible regulatory constraints to future site development. The site is located on the north side of Stevens Creek Boulevard, between Tantau and Finch Avenues, and on both sides of Valko Road. The proposed project is comprised of five parcels, with the Ca1abazas Creek bordering the western edge of one parcel. The open parcels consist mainly of non-native/ruderal grassland, with scattered trees (mainly coast live oaks and pepper trees). One of the parcels (adjacent to the Calabazas Creek) is built-out with a large office building, paved parking lots, and landscaped vegetation. The open parcels have been maintained by regular mowing. The site itself does not support any natural water features, and therefore, development of the site will not fall under the jurisdiction of the U.S. Army Corp of Engineers (US ACE), the California Department ofFish and Game (CDFG) for regulated habitats; and, it is assumed for the purposes of this report that the applicant will not be punching an outfall into the Calabazas, but tying into the existing storm water drains, and therefore, will not likely be required to obtain a permit from the Regional Water Quality Control Board (RWQCB). The overall biological value of the site is low, providing habitat for common species adapted to living in urban settings. The site does support a population of California ground squirrels, and therefore also supports potential habitat for the burrowing owl, a California species of special concern. There is only one recorded observation of burrowing owls within 3 miles of the site, recorded in 1983. LOA wildlife ecologists Michele Korpos and Dr. Emma Jack conducted protocol-level surveys for the owl between 27 and 30 September 2005. These surveys concluded that the burrowing owl is not present on-site. Due to the fact that owls are currently absent and no owls have been observed within 3-miles of the site since 1983, it is unlikely burrowing owls would be found on-site in the future. However, should burrowing owls be found on-site at some time in the future prior to construction, the loss of their habitat would be considered a significant under the California Environmental Quality Act (CEQA) and would require mitigation (e,g., relocating owls and purchasing burrowing owl habitat credits at an approved mitigation bank if on-site mitigation were not feasible). The Ca1abazas Creek is adjacent to the property, running in a generally north-south direction and runs parallel to the western portion of one parcel (the developed parcel). Even though development would occur within 100 feet of the riparian habitat along Calabazas Creek, this would be considered a less than significant impact to the Creek as the development would be separated from the project by an existing reinforced bank and SCVWD maintenance road. In addition, there is an existing paved parking lot approximately 50-feet from the edge of riparian, Live Oak Associates, Inc. TABLE OF CONTENT EXECUTIVE SUMMARY ..............,.............................................................................................. i 1.0 INTRODUCTION .............................................................................................................. 1 Figure 1. Vicinity Map...............................................................................................................2 1.1 PROJECT DESCRIPTION ........... .................................................. ................................ 3 2.0 EXISTING CONDIT! ONS ........................ ............... ...............,..............,.,.............. ........... 4 2.1 BIOTIC HABITATS .......................................................,...................................................4 2.1.1 Non-native Ruderal Grassland................................................................................4 2.2 SPECIAL STATUS PLANTS AND ANIMALS ...............................,................................ 6 _Figure 2. CNDDB ..........................................................."...................".................................... 7 2.3 JURISDICTIONAL W ATERS..................................................................................... 11 3.0 IMPACTS TO REGULATED HABITATS ..................................................................... 12 3.1 Significance Criteria .............. ....... .............,.............. ........ ....... ......... .,..... ............,.. ...... 12 3.2 RELEVANT GOALS, POLICIES, AND LAWS..........,............................................., 13 3.2.1 Threatened and Endangered Species ................................................,................... 13 3.2.2 Migratory Birds................... ............ .........., ............. ..... ,........ .............. ..... ..,.......... 14 3.2.3 Birds of Prey.......... ............... ..................... ....... ..... ....... ........ ................................ 14 3.2.4 Birds of Prey ......................................................................................................... 14 3.2.6 Wetlands and Other '"Jurisdictional Waters" ........................................................ 15 3.3 POTENTIAL CONSTRAINTS TO FUTURE SITE DEVELOPMENT .......,..............,.. 16 3.3.1 Loss of Habitat for Special Status Plants.............................................................. 16 3.3.2 Loss of Habitat for Special Status Animals ........,...,......................................,...... 17 3.3.3 Loss of Habitat for Native Wildlife ......,..................................................................... 17 3.3.4 Interference with the Movement of Native Wildlife............................................. 18 3.3.6 Disturbance to Active Raptor Nests from Construction Activities During Project Implementation ........ ........................... ....... ....... ....... .............. ... .................. .......... 19 Disturbance to Native Wildlife Nursery Sites ...............................................,...... 20 Disturbance to Waters of the United States or Riparian Habitats......................... 21 Degradation of Water Quality in Seasonal Drainages, Stock Ponds and Downstream Waters ............ ...... ".... .... ,.... ............ ,..... .......... ........ .... ............... ...... 22 3.3.10 Disturbance to Heritage Trees and Specimen Trees ............................................,22 3.3.7 3.3.8 3.3.9 LITERATURE CITED .......................................,........,.................,................,............................. 25 APPENDIX A....................................,.....................,.................,......................"................"........26 APPENDIX B .................................,..."..................,....,..,..................",.............................,......,... 29 1.0 INTRODUCTION The primary objective of this technical report is to describe the biotic resources of an approximately 25.4-acre parcel located in Cupertino, California, and to evaluate potential impacts (based on significance criteria established in CEQA) from the proposed project to such resources. The study area (hereafter referred to as "the site") is located on the north side of Stevens Creek Boulevard, basically between Tantau and Finch Avenues, and on both sides of Va11co Road. (Figure I). The proposed project is comprised of five parcels, and the Ca1abazas Creek borders the western edge of one parcel. The site is comprised of four open parcels consisting mainly of non-native/rudera1 grassland, with scattered trees (mostly coast live oaks and pepper trees). The open parcels have been maintained by regular mowing. One of the parcels is developed and consists of a large, vacant office building, parking lots and landscaping (this parcel is adjacent to Calabazas Creek). Another parcel, located to the west of Finch Avenue is adjacent to current construction, The site is irregularly shaped, and can be found on the Cupertino U.S.G.S. 7.5' quadrangle at the following: the Southwest 1. of the Northeast 1. of Section 18, Township 7South, Range I West in the Mt. Diablo Meridan. Site development of open space parcels can damage or modify biotic habitats used by sensitive plant and wildlife species. In such cases, site development may be regulated by state or federal agencies, subject to provisions of CEQA, covered by policies and ordinances of the City of Cupertino, or some combination of these four conditions. This report addresses issues related to sensitive biotic resources occurring on the site, along with the federal, state, and local laws related to such resources and mitigation measures that may be required to reduce the magnitude of anticipated impacts, The analysis of impacts, as discussed in Section 3.0 of this report, was based on the known and potential biotic resources of the study area (discussed in Section 2.0). Sources of information used in the preparation of this analysis included: (1) the California Natural Diversity Data Base (CDFG 2005) and (2) the Inventory of Rare and Endangered Vascular Plants of CalijÓrnia (CNPS 2005) and (3) manuals and references related to plants and animals of the Santa Clara Valley region, Live Oak Associates, Inc. .... '--l ,r- > / ,:(i::, I f :: i "~untain ,~~237 \. ¡ ! lOr"....., Site Location Map¡ " ~ ·AJt '[ 'ai·····., :65' '#' ~4(1t:tyc. ./.;1. .~. \ "\;--j,I.OS';;;' i···. 'T ""fqÓ11 :r-"G6 i '-... \WDJ ~ .I"~ ¡ 1.1~-~ ;~::::1 /' , ,/>\.~l.~o o~~ __--i~~jr~/ ._ ..._.._ / \ --rnt~:~,,: .\. I --j -- --- ...." "">. l '\ I ~. _.-f',--; .il "'"" I I I õ '~~;/ , \\._.~__j Bd J Ai ___ _ - --1 è-- -- - , . :.1-....411 9.- Q2J \, \'.. ~ mt'.....JDII , ,[' I I [I, [Project sit ~. II / ...' I ¡i: e nvel_ [ ~ A N. TAL IA R A ¡i ,-_.,- --- " ... . s_\evel]sJ~r~~.k _Biv<LJ_ ¡( : /i'i:i, \Yalley \<~\ Iii! t. -. t--;;;dì;;r:;i':~Falr' MÇ,\~. lar1J~..!LfU pertino! ,I . 1 01 ! I . , .~ ~. _', j :! t \1; ¡ i '. 111_BoU¡~LR!1__,! / !!' San J .. se , C' ~... II ! rl:._·--·-·IIMJIIams'~. -.--.--. _~I '~ ¡il ! '~, ' ), " ! '; .ß. Ii,' g¡1 :,\ tlJt ;', (I)" J "!}" 'I ":¡;p' , liS: '~t., .\".q:;c Iii 'C::;~ Q¡[pR~ ·~i( ~-.#/' \. ~ ',' ,;r!?s.f'~ ~}___ ..----J[ ~/ /,_.d l·· .~-. . .k~, J: "\ i__ '("?fÞ"~ï/'/" ¡ Ii ~ ':,./ lboXA \,. ,/1;) \IIf<::~!!Ij)I1.,,-nA1/e',.~ IJ i!1--.,-.---~~VJ¡L~ ~/' ¡;s.. ' .,. d. j( ,," .' '1';'" "5 ' '$aratogaÞ'.'--¡;' 1:: ~,; :,~~ _~a. "¡",,'~- .~/'..',.. .'_/¥' -- ~ _:.' --~-~,;:.i%,~:;; ancho San Antonio Open Space Stevens Creek Reservoir Fremont Older Open Spate 1/4 ...... SteY~ns Creek c1'.r~!t¥ >¡ fk '\.... ~ '\ v ., San Jose 'to' ,. ~ 'Ci.~/ 0' .. ';:./ '1,; ~" . , 04 d Campbell"'.;'t '7,ð ~e-gionaIMél~] ~ . c--;--~---~-~ I~'r!-1_J: , ,,¿,--<O-, , '"\----__'.___i --i --"~---,' ) \d_)í~J \ '. (¡,--S\L(":j .~-'-",J\~~>>." ,>.~(r " ViCi~:; Mapl~;:~s.:: " (left) ~·c· < ~,-~ ; ,/, . 't- " -'-- , r--,' \¡" . ._ J ,-~-. -, Toll Brothers Site I Vicinity Map Project # Figure # 804·01 Live Oak Associates, Inc. LOA project manager, and wildlife ecologist Michele Korpos conducted reconnaissance level field surveys on the site on 8 August 2005. Protocol-level surveys for the burrowing owl were also conducted between 27 and 30 September 2005. Field surveys conducted for this study were sufficient to assess the significance of biological constraints associated with the site, and to assess the need for more detailed study that could be warranted if sensitive biotic resources were identified in this first round of effort. 1.1 PROJECT DESCRIPTION The applicant proposes to develop a commercial/residential development comprised of 402 residential units including senior rental apartments, townhouses and flats, 100,000 to 120,000 square feet of retail (on approximately 8.37 acres), a public park (approximately 3.5 acres), a private park and recreational area (approximately 0.6 acres), parking lots (both surface and underground) and infrastructure to accommodate the project. 3 Live Oak Associates, Inc. 2.0 EXISTING CONDITIONS The site is generally level and is approximately 170 to 190 feet National Geodetic Vertical Datum (NGVD). A steep bank separates the site from a SCVWD service road and the Ca1abazas Creek. Much of the site has been maintained by routine mowing and supports mainly non- native/ruderal grassland, with scattered trees, mainly oaks (Quercus ssp.) and pepper trees (Schinus moUe), and landscaping associated with the previously developed parcel. A number of other native and non-native trees are present as well as various landscaped bushes. The wildlife value of the site is fairly poor, owing to the fact that the site is surrounded by urban development. See Appendix A and B for plant and animal species observed on-site or likely to occur on site and in the region. The annual average temperature in the general vicinity of the study area is 61°F; annual precipitation in the general vicinity of the study area averages 23.3 inches, almost 85% of which falls between October and March. Virtually all precipitation falls in the form of rain. Stormwater runoff readily infiltrates the soils of the site. 2.1 BIOTIC HABITATS 2.1.1 Non-native Ruderal Grassland The majority of the site is covered in non-native grasses and scattered trees, with a portion ofthe site (previously developed parcel) supporting landscaped plants, blacktop and an office building. Plant species include common wild oats (Avena fatua), wild radish (Raphanus sativa), curly dock (Rumex crispus), Italian rye grass (Lotium multiflorum), bindweed (Convolvulus arvensis), bristly ox tongue (Picris echioides), soft chess (Bromus hordeauceus), ripgut brome (Bromus diandrus), barnyard barley (Hordeum murinum ssp. leporinum), Bermuda grass (Cynodon dactylon), and cheeseweed (Malva parviflora). There are also several trees species within the grasslands including ash (Fraxinus uhdei), Chinese elm (Ulmus parvifotia), Coast Redwood (Sequoia sempervirens), Canary Island date palm (Phoenix canariensis), black and English walnut (Junglans californica, and Junglans regia, respectively), pepper tree, blackwood acacia (Acacia melonoxylon), silver wattle (Acacia dealbata), elm (Ulmus sp.), various pines (Pinus spp.), silver dollar gum (Eucalyptus polyanthemos), and valley oak (Quercus lobata). 4 Live Oak Associates, Inc. This ruderal non-native grassland is expected to support common grassland species adapted to living in urban settings. Reptilian species observed on-site include the western fence lizard (Sceloporus occidentalis), alligator lizard (Elgaria multicarinata). Other reptiles that are expected to occur on-site include the gopher snake (Pituophis melanoleucus), and possibly the common garter snake (Thamnophis sirtalis). Avian species observed on-site include rock dove (Columba livia), mourning dove (Zenaida macroura), American crow (Corvus brachyrhynchos), and evidence of acorn woodpecker (Melanerpes formicivorus). Other resident and migratory avian species that may occur in this habitat include Anna's hummingbird (Calypte anna), black phoebe (Sayornis negricans), loggerhead shrike (Lanius ludovicianus), scrub jay (Aphelocoma californica), common raven (Corvus corax), cliff swallow (Petrochelidon pyrrhonota), northern mockingbird (Mimus polyglottos), American robin (Turdus migratorius), European starling (Sturnus vulgaris), song sparrow (Melospiza melodia), western meadowlark (Sturne/la neglecta), purple finch (Carpodacus purpureus), house finch (Carpodacus mexicanu.l), and house sparrow (Passer domesticus). The grassland habitat also supports common mammalian species such as the Botta's pocket gopher (Thomomys bottae), deer mouse (Peromyscus maniculatus), house mouse (Mus musculus) California ground squirrel (Spermophilus beecheyi) and California vole (Microtus californicus). Other small mammals that might inhabit the grassland include the western harvest mouse (Reithrodontomys megalotis), and the ornate shrew (Sorex ornatus). Larger mammals that are expected to occur in the grassland habitat include the opossum (Didelphis virginiana), raccoon (Procyon lotor), striped skunks (Mephitis mephitis), and feral cat (Felis cattus). Larger predator and ungulate species are lacking from the site due to its location within the urban zone and isolation from intact habitat. 5 Live Oak Associates, Inc. 2.2 SPECIAL STATUS PLANTS AND ANIMALS Several species of plants and animals within the state of California have low populations, limited distributions, or both. Such species may be considered '"rare" and are vulnerable to extirpation as the state's human population grows and the habitats these species occupy are converted to agricultural and urban uses. As described more fully in Section 3.2, state and federa11aws have provided the California Department of Fish and Game (CDFG) and the U.S. Fish and Wildlife Service (USFWS) with a mechanism for conserving and protecting the diversity of plant and animal species native to the state. A sizable number of native plants and animals have been formally designated as threatened or endangered under state and federal endangered species legislation. Others have been designated as '"candidates" for such listing, Still others have been designated as '"species of special concern" by the CDFG. The California Native Plant Society (CNPS) has developed its own set of lists of native plants considered rare, threatened or endangered (CNPS 2005). Collectively, these plants and animals are referred to as '"special status species." A number of special status plants and animals occur, or once occurred, in the vicinity of the study area. Many of the plant species listed in the CNDDB and CNPS occur on serpentine or alkali soils, which do not occur on-site. The CNDDB map (Figure 2) shows no observations of special status plant species within 3-miles of the site. Due to the lack of serpentine or alkali soils on the site, the fact the site is currently developed, and its location amid dense urban development, we did not include plant species in Table 1. Table I lists special status animal species and their potential to occur in the study area. Sources of information for this table included California's Wildlife, Volumes I, II, and III (Zeiner et. al 1988-1990), California Natural Diversity Data Base (CDFG 2005), Endangered and Threatened Wildlife and Plants (USFWS 2005), and Annual Report on the Status of California State Listed Threatened and Endangered Animals and Plants (CDFG 2005). This information was used to evaluate the potential for special status animal species to occur on site. Figure 2 shows the location of special status species 6 Live Oak Associates, Inc. z4;þ ~ '..""..~ ~ ......' "' ,"~- , ¡ r \ \\ j,,,,,,,,, \,":~.\ ........:..::.~::I¡:::··~::::·:l·..·....·· -"'\ .:-.\..... ! '.... ., , 1,.. ..r".>~ , ¡ ._...........,.::~..,....., I ! . \ ~;-~ , ...... "'~. ,../' ·""'t....·,""· .... \ ')(~ 1 '. - r~ '_..,j ! ''''''-." , !'" 1 ¡ J".,;:' L.~. .t! { ! ~ '"H'·""'" _~ LAWRENCE Ë'XWV WOLFE RD """_,'_~__h ~<~o,Mn. ""r I I , I I. I . :¡: o .0) c:: '§ ro o~ .... ~ ....- :J~ .0- ._--"~.,.~.,,-\;.__. \ \ \, ,-", p, i 1 § ~ ¡.~ 1 , ¡ 0 'e:::¡) ¡ ,.,', ¡.... , r I ..............¡........ II i ¡ .......: 1.,..,.,.- j '.'. ^! i \'>:.: ~ " ''''í ....! \ "" I,'.. j 0.. '. ". .... ì ,,} "·_"·~~~~!.·t ,. '\...\ \ .~ _.~.:.>'. '. ~, 0: ..;' W· ~" W :2. o J: W .-~..\-. '. ~"'" . .:õ \. ! ..j~,,:\;j... " ~""'" ·1'1 '. v..... ~...... ~...,>... .,.¡ .... "III:: ........... ............~.. "'. 00 @ ·.'2 § ; -- Œ::J ijil ill.§ '@ c; >' .....I ~ ar :.:1 Wi WI 0::: UI ¡ De ANZA ..."L. (f), z; Wi >; Wi 1-' "en}'" , ! 0).... '¡ , , ì.,. "¡ , ¡ t~,-\. 0::: W (!) z ::1 ~ B'c :¡: 00'0:: CO i, ..c (/) -.... 0)- e a2 , o¡;¡ . o- Ut::. BLVD ;......................:-....................... ..... ..' .... .' ..' .' ....... .... ..... .' ..' (,) s:: IJ CI> .. C'II 'õ o IJ IJ « ..10: C'II o CI> > :::¡ N ~ ,. QI QI .It."u :; ;: Q) Q) CD a.. ü: .s::.(/J - ~ 03 ~'" mêi5 =ëiï 0._ 1-:6 a. (/J ~ o .,; o '" ,. Ü QI "e- o- '" o ã; ¡¡¡ 00 c z w CJ W ...J !'! Ë · · u · · o ¡; E ;¡ o 0. "- · !'! Ë c: .Q ro c: <D </I .c o </I <D <3 <D a. </I </I ::J ro U) · · ~ · " o ~ '" ~ ð ~ " Z" <1>-;:; Eo 0° oð~ < . ~< ~f ~> ;";0 ~ (þ",S!! Ocü ~,g 2 Olij '" </Iü~ .' .' .' -'"'' . r·· .:~.:T·: , . _.¡....:~ .. ..".".1.. .>o..,.....~ ó' " " to' i :1 ji ., r ,. ; ~" OJ ·0 <D a. 00 . database and, therefore, may not contain all known or gray literature records of special status species occurrences. A search of published accounts for all of the relevant special status plant and animal species was conducted for the Cupertino U.S.G.S 7.5 minute quadrangle in which the project site occurs, and for the eight surrounding quadrangles (Mindego Hill, Palo Alto, Mountain View, Milpitas, San Jose West, Lost Gatos, Castle Rock Ridge, and Big Basin) using the California Natural Diversity Data Base Rarefind3 2005. All species listed as occurring in these quadrangles on CNPS Lists 1 A, I B, 2, or 4 were also reviewed. 8 Live Oak Associates. Inc. TABLE 1. LIST OF SPECIAL STATUS SPECIES THAT DO OR COULD OCCUR IN THE PROJECT VICINITY ANIMALS (adapted from CDFG 2005 and USFWS 2005) Souies Listed as Threatened or Endane:ered under the State and/or Federal Endan ered Soecies Act Species Status Habitat *Occurrence in the Study Area Coho Salmon FT,CE Breeds in low elevation streams Absent. No suitable habitat exists for (Oncorhynchus kisutch) in Central CA lacking Coho salmon on the site, and the significant barriers for travel to Calabazas Creek does not support them. and from the ocean. Such stream habitats are usually <70°F. with good water quality, and abundant riparian ve~etation. Steethead FT Breeds in low elevation streams Absent. No suitable habitat exists for (Oncorhynchus mykiss ¡rideus) in Central CA lacking steelhead on the site, and the Calabazas significant barriers for travel to Creek does not support steelhead. and from the ocean. Such stream habitats are usually <700F, with good water quality, and abundant riparian vegetation. California Tiger Salamander FT.CSC Breeds in vernal pools and Absent. The site does not support (Am by stoma californiense) stock ponds of central breeding habitat for the C1'S. California; adults estivate in Furthermore, there are no known grassland habitats adjacent to occurrences of the species documented the breeding sites that offer within 3 miles of the site. small mammal burrows. California Red-legged Frog FT, CSC Breeds in rivers, creeks and Absent. The site does not support (Rana aurora draytonii) stock ponds of the Sierra suitable habitat for CRLF. Furthermore, foothills and coast range, there are no known occurrences within 3 preferring pools with miles of the site, and the site is overhanllinll velletation. surrounded by urban develooment. ANIMALS (adapted from CDFG 2005 and USFWS 2005) Federal Candidate Species and State S ecies of Special Concern Species Status Habitat *Qccurrence in the Study Area Foothill Yellow-legged Frog CSC Found primarily in swiftly Absent. No suitable habitat exists 00- (Rana bovlii) Howing creeks. site for the foothill vellow-leQ'Q'ed froQ'. Western Pond Turtle CSC Open slow-moving water of Absent. No suitable habitat exists on- (Clcmmys marmorata) rivers and creeks of central site for the western pond turtle. California with rocks and loes for basking. White-lailed Kite CP Open grasslands and Unlikely. The site supports only (Elanus leucurus) agricultural areas marginal breeding and foraging habitat lhroughout central for the white-tailed kite. California. Northern Harrier CSC Frequents meadows, Unlikely. The site supports only (Circus cyancus) grasslands, open marginal foraging habitat for the northern rangelands, freshwater harrier. emergent wetlands; uncommon in wooded habitats. 9 Live Oak Associates, Inc. TABLE 1. LIST OF SPECIAL STATUS SPECIES THAT DO OR COULD OCCUR IN THE PROJECT VICINITY ANIMALS (adapted from CDFG 2005 and USFWS 2005) fS C Federal Candidate Soecies and State Soecies 0 sDeciaJ oueern Species Status Habitat *Occurrence in the Study Area Sharp-shinned Hawk CSC Breeds in the mixed conifer Unlikely. Only marginal foraging habitat (Accipiter striatus) forests of the northern exists on-site for wintering sharp-shinned Sierra Nevada. This hawks. species winters in a variety of habitats of the state. Cooper's Hawk CSC Breeds in oak woodlands, Unlikely. The site supports only (Accipiter cooperii) riparian forests and mixed marginal habitat for Cooper's hawks. conifer forest of the Sierra Nevada, but winters in a variety of lowland habitats. Golden Eagle CSC Typically frequents rolling Absent. The site does not support habitat (Aquila chrysaetos) foothills, mountain areas, for the golden eagle. sage-juniper flats and desert. Burrowing Owl CSC Found in open, 'dry Unlikely. Although the site supports (Athene cunicularia) grasslands, deserts and habitat (e.g., ground squirrel burrows) ruderal areas. Requires that is frequently associated with suitable burrows. This burrowing owls, historical records for species is often associated owls in this part of the county are rare. with California ground For example, the last known occurrence squirrels. ofBUOW within three miles of the site was recorded in 1983. Loggerhead Shrike CSC Nests in tall shrubs and Possible. The site supports foraging (Lanius ludovicianus) dense trees, forages in habitat for the loggerhead shrike, and grasslands, marshes, and marginal nesting habitat. ruderal habitats. Ringtail CP Occurs in riparian and Absent. The site does not support habitat (Bassariscus astutus) heavily wooded habitats for ringtails, however, they may occur near water. alone: the Calabazas Creek. Present: Possible: Unlikely: Species observed on the sites at time of field surveys or during recent past. Species not observed on the sites, but it could occur there from time to time. Species not observed on the sites, and would not be expected to occur there except, perhaps, as a Transient. Species not observed on the sites, and precluded from occurring there because habitat requirements not met. Absent: STATUS CODES FE FT FPE FC Federally Endangered Federally Threatened Federally Endangered (Proposed) Federal Candidate CE CT CR CP CSC California Endangered California Threatened California Rare California Protected California Species of Special Concern CNPS tA tB California Native Plant Society Listing Plants Presumed Extinct in California Plants Rare, Threatened, or Endangered in California and elsewhere Plants Rare, Threatened, or Endangered in California, but more common elsewhere 3 Plants about which we need more information - a review list Plants of limited distribution - a watch list 4 2 10 Live Oak Associates, Inc. 2.3 JURISDICTIONAL WATERS Jurisdictional waters include rivers, creeks, and drainages with a defined bed and bank that may carry at most ephemeral flows, lakes, ponds, reservoirs, and wetlands. Such waters may be subject to the regulatory authority ofthe U.S. Army Corps of Engineers (USACE), the California Department of Fish and Game (CDFG), and the California Regional Water Quality Control Board (RWQCB) (see Section 3.2.4 ofthis report for additional information). The site does not support any natural water features, therefore, does not support jurisdictional waters. Furthermore, it is not anticipated that the applicant will be draining the site by using an outfall into the Calabazas Creek. The Ca1abazas Creek is adjacent to the site; however it does not occur within the property boundary. The eastern edge of the creek is approximately 50 linear feet from the property line, and is separated from the built-out portion of the project site by an access road under the jurisdiction ofthe SCVWD. 11 Live Oak Associates, Inc. 3.0 IMPACTS TO REGULATED HABITATS 3.1 Significance Criteria General plans, area plans, and specific projects are subject to the provisions of the California Environmental Quality Act (CEQA). The purpose ofCEQA is to assess the impacts of proposed projects on the environment before they are constructed. For example, site development may require the removal of some or all of its existing vegetation. Animals associated with this vegetation could be destroyed or displaced. Animals adapted to humans, roads, buildings, pets, etc., may replace those species formerly occurring on a site. Plants and animals that are state and/or federally listed as threatened or endangered may be destroyed or displaced. Sensitive habitats such as wetlands and riparian woodlands may be altered or destroyed. These impacts may be considered significant. According to California Environmental Quality Act, "'Significant effect on the environment" means a substantial, or potentially substantial, adverse change in any of the physical conditions within the area affected by the project including land, air, water, minerals, flora, fauna, ambient noise, and objects of historic or aesthetic interest. Specific project impacts to biological resources may be considered "'significant" if they will: · Have a substantial adverse effect, either directly or through habitat modifications, on any species identified as a candidate, sensitive, or special status species in local or regional plans, policies, or regulations, or by the California Department of Fish and Game or U.S. Fish and Wildlife Service; · Have a substantial adverse effect on any riparian habitat or other sensitive natural community identified in local or regional plans, policies, regulations or by the California Department ofFish and Game or U.S. Fish and Wildlife Service; · Have a substantial adverse effect on federally protected wetlands as defined by Section 404 of the Clean Water Act (including, but not limited to, marsh, vernal pool, coastal, etc.) through direct removal, filling, hydrological interruption, or other means; · Interfere substantially with the movement of any native resident or migratory fish or wildlife species or with established native resident or migratory wildlife corridors, or impede the use of native wildlife nursery sites. 12 Live Oak Associates, Inc. . Reduce substantially the habitat of a fish or wildlife species, including causing a fish or wildlife population to drop below self-sustaining levels or threaten to eliminate an animal community. · Conflict with any local policies or ordinances protecting biological resources, such as a tree preservation policy or ordinance. . Conflict with the provisions of an adopted Habitat Conservation Plan, Natural Community Conservation Plan, or other approved local, regional, or state habitat conservation plan. For the purposes of this report, it is assumed that impacts will be focused on multi-residential buildings, two parks, a recreational area, parking lots, and other infrastructure. 3.2 RELEVANT GOALS, POLICIES, AND LAWS 3.2.1 Threatened and Endangered Species State and federal "endangered species" legislation has provided the California Department of Fish and Game (CDFG) and the U.S. Fish and Wildlife Service (USFWS) with a mechanism for conserving and protecting plant and animal species of limited distribution and/or low or declining populations. Species listed as threatened or endangered under provisions of the state and federal Endangered Species Acts, candidate species for such listing, state species of special concern, and some plants listed as endangered by the California Native Plant Society are collectively referred to as "species of special status." Permits may be required from both the CDFG and USFWS if activities associated with a proposed project will result in the take of a listed species. To "take" a listed species, as defined by the state of California, is "to hunt, pursue, catch, capture, or kill, or attempt to hunt, pursue, catch, capture or kill" said species (California Fish and Game Code, Section 86). "Take" is more broadly defined by the federal Endangered Species Act to include "harm" of a listed species (16 USC, Section 1532(19), 50 CFR, Section 17.3). Furthermore, the CDFG and the USFWS are responding agencies under the California Environmental Quality Act (CEQA). Both agencies review CEQA documents in order to determine the adequacy of their treatment of endangered species issues and to make project-specific recommendations for their conservation. 13 Live Oak Associates, Inc. 3.2.2 Migratory Birds State and federal laws also protect most bird species. The Federal Migratory Bird Treaty Act (FMBTA: 16 U.S.C., scc. 703, Supp. I, 1989) prohibits killing, possessing, or trading in migratory birds, except in accordance with regulations prescribed by the Secretary of the Interior. This act encompasses whole birds, parts of birds, and bird nests and eggs. 3.2.3 Birds of Prey Birds of prey are protected in California under provisions of the State Fish and Game Code, Section 3503.5, (1992), which states that it is "unlawful to take, possess, or destroy any birds in the order Fa1coniformes or Strigiformes (birds of prey) or to take, possess, or destroy the nest or eggs of any such bird except as otherwise provided by this code or any regulation adopted pursuant thereto". Construction disturbance during the breeding season could result in the incidental loss of fertile eggs or nestlings, or otherwise lead to nest abandonment. Disturbance that causes nest abandonment and/or loss of reproductive effort is considered "taking" by the CDFG. 3.2.4 Birds of Prey Birds of prey are protected in California under provisions of the State Fish and Game Code, Section 3503.5, (1992), which states that it is "unlawful to take, possess, or destroy any birds in the order Fa1coniformes or Strigiformes (birds of prey) or to take, possess, or destroy the nest or eggs of any such bird except as otherwise provided by this code or any regulation adopted pursuant thereto". Construction disturbance during the breeding season could result in the incidental loss of fertile eggs or nestlings, or otherwise lead to nest abandonment. Disturbance that causes nest abandonment and/or loss of reproductive effort is considered "taking" by the CDFG. 3.2.5 Heritage and Specimen Trees The City of Cupertino has a Heritage and Specimen Tree Ordinance (Chapter 14.18 of the Municipal Code), which regulates the removal and protection of trees on both public and private lands. A heritage tree is defined as: 14 Live Oak Associates, Inc. ".. .any tree or grove of trees which, because of factors including but not limited to its historic value, unique quality, girth, height or species, has been found by the Architectural and Site Development Committees to have special significance to the community." Specimen trees are defined as: . All oak species and California buckeye trees having a single trunk measuring IO-inches in diameter (31-inches in circumference) or multiple trunks with a combined 20-inch diameter (63-inch circumference), measured at 4-1/2 feet above natural grade. . All big leaf maple, deodar cedar, and blue Atlas cedar measuring 12-inches in diameter (38-inches in circumference) or multiple trunks with a combined 25-inch diameter (79- inch circumference), measured at 4-1/2 feet above natural grade. 3.2.6 Wetlands and Other "Jnrisdictional Waters" Natural drainage channels and wetlands are considered "Waters of the United States" (hereafter referred to as 'Jurisdictional waters"). The U.S. Army Corps of Engineers (USACE) regulates the filling or grading of such waters under the authority of Section 404 of the Clean Water Act (Wetland Training Institute, Inc. 1991). The extent of jurisdiction within drainage channels is defined by "ordinary high water marks" on opposing channel banks. Wetlands are habitats with soils that are intermittently or permanently saturated, or inundated. The resulting anaerobic conditions select for plant species known as hydrophytes that show a high degree of fidelity to such soils. Wetlands are identified by the presence ofhydrophytic vegetation, hydric soils (soils saturated either intermittently or permanently), and wetland hydrology according to methodologies outlined in the 1987 Corps of Engineers Wetlands Delineation Manual (USACE 1987). All activities that involve the discharge of fill into jurisdictional waters are subject to the permit requirements of the USACE (Wetland Training Institute, Inc. 1991). Such permits are typically issued on the condition that the applicant agrees to provide mitigation that will result in no net loss of wetland functions or values. No permit can be issued until the Regional Water Quality 15 Live Oak Associates, Inc. Control Board (RWQCB) issues a certification (or waiver of such certification) that the proposed activity will meet state water quality standards. The RWCQB is also responsible for enforcing National Pollution Discharge Elimination System (NPDES) permits, including the General Construction Activity Storm Water Permit. All projects requiring federal money must also comply with Executive Order 11990 (Protection of Wetlands). The California Department of Fish and Game has jurisdiction over the bed and bank of natural drainages according to provisions of Section 1601 and 1603 of the California Fish and Game Code (California Department of Fish and Game 1995). Activities that would disturb these drainages are regulated by the CDFG via a Streambed Alteration Agreement. Such an agreement typically stipulates that certain measures will be implemented to protect the habitat values of the drainage in question. 3.3 POTENTIAL CONSTRAINTS TO FUTURE SITE DEVELOPMENT The applicant proposes to develop a commercial/residential development comprised of 400 residential units including senior rental apartments, townhouses and flats), 100,000 to 120,000 square feet of retail (on approximately 8.3 acres), a public park (approximately 3.5 acres), a private park and recreational area (approximately 0.6 acres), parking lots (both surface and underground) and infrastructure to accommodate the project. As discussed above, local, state and federal laws may regulate activities resulting in impacts to biotic resources. The natural resource issues specific to this project are discussed in detail below. 3.3. t Loss of Habitat for Special Status Plants Potential Impact. None of the 25 special status plant species occurring within the project vicinity occur on the site (see Table 1). This is mainly due to the fact that the site is surrounded by urban development and has been isolated from habitat that supports the various special status plant species that have occurred in the region for some time. Mitigation. None warranted. 16 Live Oak Associates, Inc. 3.3.2 Loss of Habitat for Special Status Animals Potential Impact. Fourteen special status animal species occur, or once occurred, within the project vicinity (see Table 1). Of these, 15 species would be absent from or unlikely to occur on the site. These include the Coho salmon, stee1head, California tiger salamander, California red- legged frog, foothill yellow-legged frog, western pond turtle, white-tailed kite, northern harrier, sharp-shinned hawk, Cooper's hawk, golden eagle, burrowing owl, and ringtail. The one remaining special status animal species from Table 1 that may occur more frequently as a regular forager or may be resident to the site is the loggerhead shrike. However, no loggerhead shrikes or nests were observed during the reconnaissance survey. Furthermore, the site supports suitable foraging habitat for the shrike, but is generally lacking their preferred nesting habitat (dense bushes or trees). The proposed project is expected to result in a 1ess-than-significant impact on habitat for all of the special status animal species listed in Table 1 due to the fact that most of the special status species that are known (or expected) to occur regionally would not occur on-site and development would result in a rather small loss of foraging and/or breeding habitat for any species that might occur more frequently (e.g., loggerhead shrike). Therefore, the loss or fragmentation of non-native annual grassland and some mature trees is expected to result in a 1ess-than-significant impact to habitat for all species listed in Table I. Potential project impacts to individual nesting raptors are discussed in Section 3.3.6 Disturbance to Active Raptor nests from Construction Activities during Project Implementation below. Mitigation. No mitigation would be required for loss of habitat for special status animal species. 3.3.3 Loss of Habitat for Native Wildlife Potential Impact. The proposed project will primarily result in the loss of non-native/ruderal grasslands. This habitat possesses minimal biotic value and provides only low-quality habitat for most species. Nonetheless, the site comprises a portion of certain wildlife's entire home range or 17 Live Oak Associates, Inc. territory. As such, some species may disperse through the site, but most wildlife presently using the site do so as part of their normal movements for foraging, mating, and caring for young. Individuals of the various vertebrate species presently occupying the site would be displaced or lost from the development area. Impacts due to the loss of this habitat for native wildlife resulting from the proposed project are considered less-than-significant. Mitigation. The loss of a relatively small amount of low quality ruderal habitat is not expected to affect the persistence and presence of local wildlife. Project impacts on wildlife habitat would be less-than-significant and mitigation measures would not be warranted. 3.3.4 Interference with the Movement of Native Wildlife Potential Impact. The area proposed for development on the site consists ofnon-native/ruderal grassland. The movements of various species on- and off-site vary depending on the species in question. One must differentiate between animals' consistent use patterns in order to assess the importance of an area as a "movement corridor." Wildlife movements generally can be divided into three major behavioral categories: · Movements within a home range or territory; · Movements during migration; and · Movements during dispersal. While no detailed study of animal movements has been conducted for the study area, knowledge of the site, its habitats, and the ecology of the species occurring on-site permits sufficient predictions about the types of movements occurring in the region and whether or not proposed development would constitute a significant impact to animal movements. The only habitat impacted by the proposed development consists of non-native/ruderal grasslands. While native wildlife may move through this habitat, it does not represent a 18 Live Oak Associates, Inc. significant movement corridor for native wildlife, as the site is surrounded by urban development; therefore, its loss would result in a 1ess-than-significant impact on the movements of native wildlife. Project development, therefore, is expected to have a less-than-significant impact on the movements of native wildlife. Mitigation. Project impacts to wildlife movements would be less than significant, and no mitigation measures are warranted. 3.3.6 Disturbance to Active Raptor Nests from Constrnction Activities During Project Implementation Potential Impacts. While it has already been concluded that development of the project would result in a less than significant impact to habitat for any raptor that may forage for breed on site (see Section 3.3.5), impacts to individual raptors (including raptors that are not special status like the red-tailed hawk) would result in a significant impact. Reconnaissance site surveys failed to detect recent historic evidence of nesting by raptors. While this negative evidence is sufficient to demonstrate the lack of recent nesting activity by raptors, the lack of evidence in no way has any reasonable predictive power to conclude that raptors would never nest on the site. Considerable number of new nest sites are formed each year in the Bay Area and thus, it would be inappropriate (and scientifically invalid) to conclude that a raptor could not (and therefore would not) nest in some future year (i.e., prior to construction) on-site. The trees on site support potential habitat for tree nesting raptors, and while the possibility that burrowing owls may colonize the site prior to construction is low, the presence of ground squirrel burrows does not preclude them from ever occurring on site. Thus, if construction is to occur during the raptor breeding season (1 February to 31 August), the project would result in a significant impact to individual raptors by potentially harming, injuring, killing or causing a nesting raptor to abandoned an active nest. This effect would be considered significant under CEQA and the V,S. Fish and Wildlife Service under the Migratory Bird Treaty Act and the California Department of Fish and Game under Fish and Game Code Section 3503,5 would also regulate any such activity. Mitigation. The following mitigation measures should be implemented to ensure that nesting raptors (hawks and owls) are not disturbed nor harmed, injured or killed. 19 Live Oak Associates, Inc. . A qualified biologist should conduct pre-construction surveys for nesting raptors (including both tree and ground nesting raptors) on site within 30 days of the onset of ground disturbance, if ground disturbance is to occur during the breeding season (February 1 to August 31). These surveys will be based on the accepted protocols (e.g., as for the burrowing owl) for the target species. If a nesting raptor were to be detected, an appropriate construction buffer would be established, Actual size of buffer would depend on species, topography, and type of activity that would occur in the vicinity of the nest. . A qualified ornithologist will conduct pre-construction surveys for burrowing owls during the non-breeding season to ensure owls remain absent from the site. Pre-construction surveys during the non-breeding season are not necessary for tree nesting raptors, as they are expected to abandon their roosts during staging. If pre-staging surveys (conducted either during the breeding or non-breeding season) determine that burrowing owls occupy the site just prior to staging, then a passive relocation effort (blocking burrows with one- way doors) maybe necessary to ensure that the owl is not harmed or injured during construction. 3.3.7 Disturbance to Native Wildlife Nursery Sites Potential Impact. Ms. Korpos conducted presence/absence bat surveys on-site on the evenings of 27 and 29 September 2005. No bats were observed on-site during these surveys, and LOA concludes that bats are currently absent. The loss of a maternity colony for any bat species (1 March to 31 August), regardless of the species' status, would constitute a potentially significant impact. Swallows are protected under the Migratory Bird Treaty Act, and they were observed flying over the site (adjacent to the Creek), and it is possible that they nest under the overpass just north of the property). Destruction of or disturbance to active swallow nests during the breeding season (1 March to 31 July) would also constitute a potentially significant impact. Mitigation. Bats, Even though bats are currently absent from the site, it is possible that a roost could be formed on-site prior to construction. Therefore, the project proponent should conduct pre-demolition bat surveys to determine if bats remain absent from the site. If no bats are observed to be roosting in the existing office building or in trees located on-site, then no further action would be required and demolition can proceed. However, if bats were found to be roosting on the site, the project proponents should exclude bats prior to demolition to ensure no harm or take would occur to any bats as a result of demolition activities. Demolition should 20 Live Oak Associates, Inc. occur after 31 August and before I March to avoid interfering with an active nursery. If a non- breeding bat hibernacu1um is found in the buildings to be demolished, the individuals should be safely evicted, under the direction of a qualified bat biologist, through a "partial dismantle" process, whereby the roosting area is opened to allow airflow through and sunlight into the building, making it unsuitable habitat and undesirable for the bats to return to the site. Demolition should then follow no later than the following day (i.e., there should be no less than one night between initial disturbance for airflow and the demolition). This action should allow bats to leave during the night, thus increasing their chances of finding new roosts with a minimum of potential predation during daylight hours. By implementing the above mitigation, impacts to special status bats would be reduced to a less-than-significant level. Swallows. The following mitigation should reduce impacts to nesting swallows to a less-than- significant level. If construction were to occur outside of the nesting season (I March through 31 July), then no further mitigation for swallows would be required. If construction will occur during the nesting season, however, a pre-construction survey for nesting swallows (trees and building eaves) should be conducted. If swallows are determined to be absent during the nesting season surveys, demolition can proceed without further mitigation, If, however, swallows are determined to be present on-site, demolition of all structures or removal of trees (in the case of tree swallow presence) must be delayed until it has been determined that all young swallows have fledged. Implementation of the above measures will fully mitigate impacts to nesting and roosting swallows and bats. 3.3.8 Disturbance to Waters of the United States or Riparian Habitats Potential Impact. There are no naturally occurring waterways on-site; however the Calabazas Creek is located approximately 50-feet to the west of the developed parcel on-site. Mitigation. No mitigation would be required under CEQA for project impacts to jurisdictional waters or to riparian habitats. (See, however, mitigation in Section 3.3.9 below). 2\ Live Oak Associates, Inc. 3.3.9 Degradation of Water Quality in Seasonal Drainages, Stock Ponds and Downstream Waters Potential Impact. Eventual site development, including removal of existing hardtop and grading will leave the soil of construction zones barren of vegetation and, therefore, vulnerable to sheet, rill, or gully erosion. Eroded soil is generally carried as sediment in surface runoff to be deposited in natural creek beds, canals, and adjacent wetlands. Furthermore, urban runoff is often polluted with grease, oil, pesticide and herbicide residues, heavy metals, etc. These pollutants may eventually be carried to sensitive wetland habitats used by a diversity of native wildlife species. The deposition of pollutants and sediments in sensitive riparian and wetland habitats would be considered a potentially significant adverse envirorunenta1 impact. Mitigation. The applicant must comply with the provisions of a City and/or County grading pennit, including standard erosion control measures that employ best management practices (BMPs). Projects involving the grading of large tracts of land must also be in compliance with provisions of a General Construction permit (a type of NPDES permit) available from the California Regional Water Quality Control Board. Compliance with the above permits should result in no impact to water quality in seasonal creeks, reservoirs, and downstream waters ITom the proposed project. 3.3.10 Disturbance to Heritage Trees and Specimen Trees Potential Impacts. A fonnal tree survey was conducted for the site (Barrie D. Coate and Associates, 2005), and reviewed by Ms. Korpos, A total of 317 trees with trunks measuring greater than 6-inches exist on-site. According the this report, there are eight "'specimen trees", as defined by the City's Municipal Code. Of these, only one would be removed or severely damaged by the project, and the arborist recommends transplanting this tree, As per the current site plan (dated 30 August 2005), 124 trees would be directly affected by the proposed build-out, and 46 others that may be "'so severely damaged by construction that they would not be expected to survive" (Barre D, Coate and Associates, 2005). Of these 170 trees, eight are candidates to be transplanted. Therefore, a total of 162 trees would need to be mitigated for. 22 Live Oak Associates, Inc. The arborist's report dated 21 July 2005 outlines a number of measures to protect trees that may otherwise be damaged during construction activities. However, the report does not discuss the replacement of lost trees. Therefore, LOA recommends the following: Mitigation. Replace lost trees. Trees to be removed on-site must be replaced regardless of their species or size. The trees that are currently on-site provide nesting and roosting habitat to a number of bird species, as well as invertebrates and potentially several mammal species. Replacement trees could be planted in the park, along the borders of the property, throughout parking lots, and in other shared areas and should preferably be native trees of small nursery stock (e.g., seedlings or dee-pots). Smaller trees are preferred in mitigation efforts, as they historically out-perform larger starter trees. LOA recommends the following replacement to loss ratios: · Non-natives: 1: I · Natives with a trunk size less than 18-inches in diameter: 2: 1 · Natives with a trunk size greater than 18-inches in diameter: 4: I The above rep1acement-to-removal ratios will compensate for habitat values and temporal losses as a result of the removal of mature trees. All native trees will be replaced with the same native species or other desirable species (e,g., walnuts do not necessarily need to be replaced with walnuts, but may be replaced with oaks or buckeyes, for example), and all non-native species will be replaced with a native species appropriate to the site, In this case, areas appropriate for this mitigation exist at the edge of the riparian woodland habitat, as the native ordinance-size trees being replaced consist of species adapted to riparian habitats. Planting stock should be collected locally (within a 5-mile radius of the project site) to the extent possible in order to maintain genetic integrity of the species' to be replaced, and replacement plantings should be completed during the period between November and January. 23 Live Oak Associates, Inc. If it is determined that the site lacks sufficient areas to accommodate all of the replacement plantings, one or more ofthe following measures will be implemented: . Replacement tree plantings may be accommodated at an alternative site(s). Alternative sites may include local parks, schools, or an adjacent property where such plantings may be utilized for screening purposes, However, any alternatively proposed site will be pursuant to agreement with the Director of the Department of Planning, Building and Code Enforcement. As stated above, the arborist's report outlines mitigation measures intended to reduce impacts to any retained trees during the construction and operation phases of the project to a less-than- significant level. 3.3.11 Conflict with the provisions of an adopted Habitat Conservation Plan (HCP), Natnral Commnnity Conservation Plan (NCCP), or other approved local, regional or state Habitat Conservation Plan. There is no HCP or NCCP in effect that covers the area of the project site. Therefore, no provisions are in place, and the proposed project would not be in conflict with any HCP or NCCP. 24 Live Oak Associates, Inc. LITERATURE CITED California Department ofFish and Game. 2005. Annual Report on the Status of California State Listed Threatened and Endangered Animals and Plants. The Resources Agency, Sacramento, CA. 204 pp. California Department of Fish and Game. 2002. California Fish and Game code. Gould Publications. Binghamton, N.Y. California Department of Fish and Game, 2005. California Natural Diversity Database. The Resources Agency, Sacramento, CA. California Department ofFish and Game. 1995. Draft Report on Burrowing Owl Mitigation. The Resources Agency, Sacramento, CA. California Native Plant Society (CNPS). 2005. Inventory of Rare and Endangered Plants (online edition, v6-05c). California Native Plant Society. Sacramento, CA. Accessed on JuI. 18:46: 10,2005 from http://www.cnps.org/inventory. California Resource Agency. Guidelines for the Implementation of the California Environmental Quality Act (CEQA Guidelines), California Code of Regulations, Title 14, Division 6, Chapter 3. Remy, Michael H. and Tina A. Thomas, James A Moose and Whitman F. Manley. 1996. Guide to the California Environmental Quality Act. USACE. 1987. Corps of Engineers Wetlands Delineation Manual. Department of the Army. U.S. Fish and Wildlife Service. 2005. Endangered and threatened wildlife and plants. Wetland Training Institute, Inc. 1990. Federal Wetland Regulation Reference Manual. B.N. Goode and RJ. Pierce (eds.) WTI 90-1. 281pp. Zeiner, D. C., W. F. Laudens1ayer, K. E. Mayer, and M. White. (eds). 1988. California's Wildlife, Volume I, Amphibians and Reptiles. Department of Fish and Game, Sacramento, CA. 272 pp. Zeiner, D. C., W. F. Laudenslayer, K. E. Mayer, and M. White. (eds), 1988. California's Wildlife, Volume II, Birds. Department ofFish and Game. Sacramento, CA. 731 pp. Zeiner, D. C., W. F. Laudenslayer, K. E. Mayer, and M. White. (eds). 1988. California's Wildlife, Volume III, Mammals. Department ofFish and Game. Sacramento, CA. 407 pp. 25 Live Oak Associates, Inc. APPENDIX A 26 Live Oak Associates, Inc. APPENDIX A VASCULAR PLANTS OF THE STUDY AREA The plant species listed below were observed on the Toll Brothers study area during the survey conducted by Live Oak Associates in August 2005. All plants have been named according to The Jepson Manual (Hickman 1993). The U.S, Fish and Wildlife Service wetland indicator status of each plant has been shown following its common name. OBL - Obligate FACW - Facultative Wetland FAC - Facultative FACU - Facultative Upland UPL - Upland +/- - Higherllower end of category NR - No review NA - No agreement NI - No investigation ANACARDIACEAE - Sumac Family Schinus moUe AREACEAE Phoenix canariensis Acer palmatum ASTERACEAE - Sunflower Family Lactuca serriola BRASSICACEAE - Mustard Family Raphanus sativus CONVOL VULACEAE - Morning Glory Family Convolvulus arvense FABACEAE - Legume Family Acacia dealbata Acacia melonoxylon Meli/otus indica FAGACEAE Quercus agrifolia Quercus lobata JUGLANDACEAE - Walnut Family Juglans californica Juglans regia MALV ACEAE - Mallow Family Malva parviflora MYRTACAEAE Eucalyptus polyanthemos OLEACEAE Fraxinus oxycarpa PATANACEAE Platanus racemosa PINACEAE Pinus halepensis Pinus radiate 27 Pepper tree Canary Island Date Palm Japanese Maple Prickly lettuce F AC Wild radish Field bindweed UPL Silver Wattle Blackwood Acacia Indian sweet clover F AC Coast Live Oak Valley Oak Black walnut FAC English walnut FAC Cheeseweed Silver dollar gum Raywood Ash California Sycamore Aleppo Pine Monterey Pine Live Oak Associates, Inc. POACEAE - Grass Family Avenafatua Bromus hordeaceus Bromus diandrus Hordeum murinum ssp. leporinum Lolium multiflorum TAXODIACEAE Sequoia sempervirens ULMACEAE Ulmus parvifolia 28 Common wild oats Soft chess Ripgut Barnyard barley Italian ryegrass Coast Redwood Chinese Elm NI FACU- UPL NI NI Live Oak Associates, inc. APPENDIX B 29 Live Oak Associates, Inc. APPENDIX B TERRESTRIAL VERTEBRATE SPECIES THAT POTENTIALLY OCCUR ON THE STUDY AREA The species listed below are those that may reasonably be expected to use the habitats of the study area. The list was not intended to include birds that are vagrants or occasional transients. Its purpose was rather to include those species that may be expected to routinely and predictably use the planning area during some or all ofthe year. An asterisk denotes a species observed on the project site during the surveys conducted in July 2005. ... CLASS: AMPHIBIA ORDER: CAUDATA (Salamanders) FAMILY: SALAMANDRIDAE (Newts) California New! (Taricha torosa) FAMILY: PLETHODONTIDAE (Lungless Salamanders) Ensatina (Ensatina eschscholtzii) Pacific Slender Salamander (Batrachoseps pacificus) Arboreal Salamander (Aneides lugubris) ORDER: ANURA (Frogs and Toads) FAMILY: BUFONIDAE (True Toads) Western Toad (Bufo boreas) FAMILY: HYLIDAE (Treefrogs and Relatives) Pacific Chorus Frog (Pseudacris regilla) FAMILY: RANIDAE (True Frogs) Bullfrog (Rana catesbeiana) CLASS: REPTILIA ORDER: TESTUDINES FAMILY: EMYDIDAE Western Pond Turtle (Emys marmorata) ORDER: SQUAMATA (Lizards and Snakes) SUBORDER: SAURIA (Lizards) FAMILY: PHRYNOSOMATIDAE *Western Fence Lizard (Sceloporus occždentalis) FAMILY: SCINCIDAE (Skinks) Gilbert Skink (Eumeces gilberti) FAMILY: ANGUIDAE (Alligator Lizards and Relatives) 'Southern Alligator Lizard (Elgaria multicarinata) SUBORDER: SERPENTES (Snakes) FAMILY: COLUBRIDAE (Colubrids) Gopher Snake (Pituophis melanoleucus) Common Garter Snake (Thamnophis sirtalis) FAMILY: VIPERIDAE Western Rattlesnake (Crotalus viridis) CLASS: AVES ORDER: CICONIIFORMES (Herons, Storks, Ibises, and relatives) FAMILY: ARDEIDAE (Herons and Bitterns) 30 Live Oak Associates, Inc. Great Blue Heron (Ardea herodias) Great Egret (Casmerodias albus) Snowy Egret (Egretta thule) Green Heron (Butorides virescens) FAMILY: CATHARTIDAE (American Vultures) Turkey Vulture (Cathartes aura) ORDER: ANSERIFORMES (Screamers, Ducks, and relatives) FAMILY: ANATIDAE (Swans, Geese and Ducks) Canada Goose (Branta canadensis) Mallard (Anas platyrhyncyhos) ORDER: FALCONIFORMES (Vultures, Hawks, and Falcons) FAMILY: ACCIPITRIDAE (Hawks, Old World Vultures, and Harriers) White-tailed Kite (Elanus caeruleus) Northern Harrier (Circus cyaneus) Sharp-shinned Hawk (Accipiter striatus) Cooper's Hawk (Accipiter cooperi) Red-shouldered Hawk (Buteo lineatus) Red-tailed Hawk (Buteo jamaicensis) Golden Eagle (Aquila chrysaetos) FAMILY: FALCONIDAE (Caracaras and Falcons) American Kestrel (Falco sparverius) Merlin (Falco columbarius) ORDER: CHARADRIIFORMES (Shorebirds, Gulls, and relatives) FAMILY: CHARADRIIDAE (Plovers and relatives) Killdeer (Charadrius vociferus) FAMILY: LARIDAE (Gulls and Terns) California Gull (Larus californicus) ORDER: COLUMBIFORMES (Pigeons and Doves) FAMILY: COLUMBIDAE (Pigeons and Doves) *Rock Dove (Coiumba livia) *Mourning Dove (Zenaida macroura) ORDER: STRIGIFORMES (Owls) FAMILY: TYTONIDAE (Barn Owls) Common Barn Owl (Tyto alba) FAMILY: STRIGIDAE (Typical Owls) Great Homed Owl (Bubo virginian us) Burrowing Owl (Athene cunicularia) ORDER: APODIFORMES (Swifts and Hummingbirds) FAMILY: TROCHILIDAE (Hummingbirds) 'Anna's Hummingbird (Calypte anna) Rufous Hummingbird (Selasphorus rufus) ORDER: PICIFORMES (Woodpeckers and Relatives) FAMILY: PICIDAE (Woodpeckers and Wrynecks) 'Acorn Woodpecker (Melanerpes formicivorous) Nuttall's Woodpecker (Picoides nuttallii) Downy Woodpecker (Picoides pubescens) Northern Flicker (Colaptes auratus) ORDER: PASSERIFORMES (Perching Birds) FAMILY: TYRANNIDAE (Tyrant Flycatchers) Western Wood-Pewee (Contopus sordidulus) Willow Flycatcher (Empidonax traillii) 31 Live Oak Associates, Inc. Dusky Flycatcher (Empidonax oberholseri) Black Phoebe (Sayornis nigricans) Say's Phoebe (Sayornis soya) Ash-throated Flycatcher (Myiarchus cinerascens) Western Kingbird (Tyrannus verticalis) FAMILY: LANIIDAE (Shrikes) Loggerhead Shrike (Lanius ludovicianus) FAMILY: VIREONIDAE (Typical Vireos) Cassin's Vireo (Vireo cassinii) Hutton's Vireo (Vireo huttoni) Warbling Vireo (Vireo gilvus) FAMILY: CORVIDAE (Jays, Magpies, and Crows) Scrub Jay (Aphelocoma coerulescens) American Crow (Corvus brachyrhynchos) Common Raven (Corvus corax) FAMILY: HIRUNDINIDAE (Swallows) Tree Swallow (Tachycineta bicolor) Violet-green Swallow (Tachycineta thalassina) *C1iffSwallow (Hirundo pyrrhonota) Barn Swallow (Hirundo rustica) FAMILY: PARIDAE (Titmice) Oak Titmouse (Parus inornatus) FAMILY: AEGITHALIDAE (Bushtit) Bushtit (Psaltriparus minim us) FAMILY: SITTIDAE (Nuthatches) Red-breasted Nuthatch (Sitta canadensis) White-breasted Nuthatch (Sitta carolinensis) FAMILY: TROGLODYTIDAE (Wrens) Bewick's Wren (Thryomanes bewickii) House Wren (Troglodytes aedon) Rock Wren (Salpinctes obsoletus) FAMILY: REGULIDAE (Kinglets) Golden-crowned Kinglet (Regulus satrapa) Ruby-crowned Kinglet (Reg;;lus calendula) FAMILY: TIMALIIDAE (Babblers) Wrentit (Chamaeafasciata) FAMILY: TURDIDAE (Thrushes) American Robin (Turdus migratorius) Hermit Thrush (Catharus guttatus) FAMILY: MIMIDAE (Mockingbirds and Thrashers) 'Northern Mockingbird (Mimus polyglottos) FAMILY: STURNIDAE (Starlings) European Starling (Sturnus vulgaris) FAMILY: MOTACILLIDAE (Wagtails and Pipits) American Pipit (Anthus rubescens) FAMILY: PARULIDAE (Wood Warblers and Relatives) Orange-crowned Warbler (Vermivora celata) California Yellow Warbler (Dendroica petechia brewsteri) Yellow-rumped Warbler (Dendroica coronata) Black-throated Gray Warbler (Dendroica nigrescens) Townsend's Warbler (Dendroica lownsendi) 32 Live Oak Associates, Inc. Wilson's Warbler (Wilsoniapusilla) FAMILY: EMBERIZIDAE (Emberizines) Rufous-crowned Sparrow (Aimophila ruficeps) Chipping Sparrow (Spizella passerina) Black-chinned Sparrow (Spizella atrogularis) Song Sparrow (Melospiza melodia) Golden-crowned Sparrow (Zonotrichia atricapilla) FAMILY: ICTERIDAE (Blackbirds, Orioles and Allies) Red-winged Blackbird (Agelaius phoeniceus) Western Meadowlark (Sturnella neglecta) Brewer's Blackbird (Euphagus cyanocephalus) Brown-headed Cowbird (Molothrus ater) FAMILY: FRINGILLIDAE (Finches) Purple finch (Carpodacus purpureus) House finch (Carpodacus mexicanus) FAMILY: PASSERIDAE (Old World Sparrows) *House Sparrow (Passer domesticus) CLASS: MAMMALIA ORDER: DIDELPHIMORPHIA (Marsupials) FAMILY: DIDELPHIDAE (Opossums) Virginia Opossum (Didelphis virginiana) ORDER: INSECTIVORA (Shrews and Moles) FAMILY: SORICIDAE (Shrews) Ornate Shrew (Sorex ornatus) FAMILY: TALPIDAE (Moles) ORDER: CHIROPTERA (Bats) FAMILY: VESPERTILIONIDAE (Vespertilionid Bats) Little Brown Myotis (Myotis lucifugus) Long-eared Myotis, (Myotis evotis) Fringed Myotis (Myotis thysanodes) Long-legged Myotis (Myotis volans) California Myotis (Myotis californicus) Small-footed Myotis (Myotis leibii) Western Pipistrelle (Pipistrellus hesperus) Big Brown Bat (Eptesicus fuscus) Hoary Bat (Lasiurus cinereus) FAMILY: MOLOSSIDAE (Free-tailed Bat) Brazilian free-tailed Bat (Tadarida brasiliensis) ORDER: LAGOMORPHA (Rabbits, Hares, and Pikas) FAMILY: LEPORIDAE (Rabbits and Hares) Black-tailed Hare (Lepus californicus) ORDER: RODENTIA (Squirrels, Rats, Mice, and Relatives) FAMILY: SCIVRIDAE (Squirrels, Chipmunks, and Marmots) *California Ground Squirrel (Spermophilus beecheyi) Western Gray Squirrel (Sciurus griseus) FAMILY: GEOMYIDAE (Pocket Gophers) *Botta's Pocket Gopher (Thomomys bottae) FAMILY: HETEROMYIDAE (Pocket mice and Kangaroo Rats) California Pocket Mouse (Perognathus californicus) 33 Live Oak Associates, Inc. FAMILY: MURIDAE (Mice, Rats and Voles) California Mouse (Peromyscus californicus) Deer Mouse (Peromyscus maniculatus) California Vole (Microtus californicus) FAMILY: PROCYONIDAE (Raccoons and Relatives) Raccoon (Procyon lotor) FAMILY: MEPHITIDAE (Kunks) Striped Skunk (Mephitis mephitis) FAMILY: FELIDAE (Cats) Feral Cat (Felis cattus) 34 Live Oak Associates, Inc. APPENDIX C Tree Survey and Tree Survey Addendum B D COATE BARRIE D. COATE and ASSOCIATES Hor1iCLCUfaI ConwltBnts 23535 Swnmlt Road Los Gatos. CA 95033 406J353-10t52: 4ØS 8581288 0S/18/Ø5 12:88pm P. Ø02 EV ALUA nON OF TREES AT FINCH AVENUE AND STEVENS CREEK BOULEVARD AND V ALLCO PARKWAY AND NORTH TANTAU A VENUE, CUPERTINO Prepared at the request of: KeUy Snider Toll .Bros. Construction 2560 N.l" Street, Suite 102 San Jose, CA 95131 Prepared by: Michael L. Bench Consulting Arborist July 218', 2005 Job # 07-05-135 B D COATE 408 8581288 08/18/05 12:88pm P. ØØ8 EV AfDA nON ()Jo' 'fREER U>CATED AT FINCH A VENUE AND snWENS CREEK BOULEVARD AND VAJLCOPARKWAY ANl> NORTH TANTAU AVFNUE.ClJPI~R'l'[NO FOR TOLL OF CUPERTINO I Assignment I have been asked by Kelly Snider, Toll Brothers Construction, San Jose, to evaluate the trees located at Finch Avenue and Stevens Creek Boulevard and the trees located at Vallco Parkway and North Tantau Avenue, Cupertino.. The plans provided for this evaluation are topographic maps (3 sheets) of the existing features at this site, prepared by an unidentified professional and undated, and a preliminary exhibit of the proposed housing layout (Sheet 4), undated. Summary There are 317 trees on this site that poses trunk measurements of 6 inches in diameter or larger. All of the 317 trees are tagged for field identification, identified by species, and given a condition rating. Some trees and/or circumstances concerning them are briefly described. A numbered aluminum label has been attached to each of the 317 trees, Their locations are shown on the attached map, There are 8 "Specimen trees" at this site, as defined by city code, These are Trees #126, 212, 213,214,215,251,252, and 253. However, Tree # 126, a valley oak (Q.lobata), is dead. All of these other "Specimen trees" are coast live oak (Quercu,y agrifolia) trees, Trees that would be removed or severely damaged by the implementation ofthis present plan are noted. Of these, Tree # 212 is the only "Specimen tree," which would be a fine candidate for transplanting, Additional non-specimen trees that would be acceptable candidates for transplanting are also noted. The total value of these 8 specimen trees is $38,630, A general protection plan is provided. Observations There are 317 trees on this property, The attached map shows the locations of all of these trees, The 317 trees are classified as follows: 151-Trees# 1-10, 13-17, 30-91,127-166,178,179,180,183-186,196, 218-221,223-243,317 - Shamel ash (Fraxinus uhdei) 4 - Trees # 11, 12,25,26 - Chinese elm (Ulmus parvifolia) 75 - Trees # 18-24,27,28,29,168,169,254-316 -- Coast redwood (Sequoia sempervirens) 7 - Trees # 92-98 - Canary Island date palm (Phoenix canariensis) 9 - Trees # 99,100, 101,208,209,245,246,247,249 - California pepper (Shinus mol/e) 5 - Trees # 102-106 -Blackwood acacia (Acacia melanoxyfon) 2 - Trees # 112, 124 - Orange (Citrus aurantiaca) I - Tree # 113 - Aleppo pine (Pinus ha/epensis) Prepared by: Michael L. Bench, Consulting Arborist July 21". 2005 B D COATE 408 8581288 08/18/05 12:88pm P. ØØ4 r<:v AL11ATTON OF TREES LOCA 11ill AT FIN"CII ^ VENUE AND STEVENS CI~f':I~K B<)(JLEV ARD AND V ALLCn PARKW ^ Y AND NORTH TANTAU ^ VENUE, CUPERTINO FOR TOT ,L OF CUPERTINO 2 8 - Trees # 107-11],114,115, 1I6 - Elm (Ulmus c\pecies) I - Tree # 117 - Silver wattle (Acacia dealhata) 6 - Trees # ] 18-123 - English waInu (Juglans regia) I - Tree # 125 - Redbox or Silver dollar !,'1lm (Eucalyptu\' polyanthemos) I - Tree # 126 - Valley oak (Quercudobala) IO-Trees# 167, 175, 176, 177, 181, 182, 187, 188, 189, 202-Monterey pine (Pinus radiata) 6 -- Trees # 170-173,210,211 - Honey locust (Gleditsia trlacanthos) l - Tree # 174 -- California sycamore (Platanus racemosa) 6 -- Trees # ]90-195 - Evergreen pear (Pyrlls kawakami) 5 - Trees # 197-201 - Indian hawthorne (Rlwliolepis indica 'Majestic Beauty') 5 - Trees # 203-207 - Raywood ash (Fraxinus oxycarpa 'Raywood') 7 - Trees # 2]2-215, 251, 252, 253 - Coast live oak (Quercus agrifolia) 2 - Trees # 216, 217 - AfricanYew pine (Podocarpus gracilior) 1 - Tree # 222 - Japanese maple (Acer palma/urn) I - Tree # 244 - California buckeye (Aesculus cali/òrnica) I - Tree # 248 - Scarlet oak (Quercus coccinea) I .. Tree # 250 - Oak species (Quercus species) The particulars about these trees (species, trunk diameter, heigbt, spread, and structure) are included in the attachments that follow this text. The health and structure of each specimen is rated on a scale of 1-5 (Excel1ent - Extremely poor) on the data sheets attached to this text. Based on these health and structure ratings combined, I have given each tree an overall condition rating as follows: r---- Excellent Good Fair Poor Extremelv Poor Dead SDecimens --. Specimens Specimens S¡¡ecimens Specimens S~cimens 6,10,11,17, 9,12,1625, J ,4, 7, 8, 13, 2 5 51,123, 3,53,88,89, 108121, 18-24,26,27, 30,33,34 35, 14,15,37,39, 144,170,250 112,119,127, 122,126 28,29,31,32, 40,4] 42,44 45,58,59,64, 130,133 136, 36,38,43,49, 46,47,48,55, 66,67,69,72, 139 50,52,54,56, 57,61,63,71, 73,75,76,77, 60,62,65,68, 74,79,86,90, 78,80,81,82, - 70,92-98 100 91 99, 101, 83,84,85,87, 104,105,110, - 102,103,106, 124,134,145, ---- 114,115 116, 107,109,111, ]46,150,15], . - 147,156,16], 113,117,118, ...159,160,165, 167,168,169, 120,125,128, 166,17un, - 175,176,182, 129,131,132, 173,174,184, 187,197,198, 135,137,138, 185,186,190, 199,200,201, 140,141,142, t91,193,194, 2122]4,215, 143,148,149, 202,203,204, 216,217,218, 152,153,154, 205,206,207, 219 22Q,~;21L_ 155,157,158, 209,2]0,221, ,- .B2.PO,23L_.162,163,164, 226,227,236, Prepared by: Michael L. Bench, Consulting Arborist July 21",2005 B D COATE 408 8581288 08/18/05 12:88pm P. 005 EV Al,UATION OF 11ŒES LOCAn:D AT FINCH A VENUE AN!) STEVENS CREEK BOULEVARD AND V Al.LCO PARKWA Y AND NORTH TAN1'AU A VENUE. CUPERTINO FOR TOLL lW CUPERTINO 3 -,. 232,235,243, 177,178,179, 240,242,262, ~~4,245,246, 180,181,183, 268,293,296 - 247,248,249, 188,189,192, 252,2~5,256, 195,196208 259,260,266, 211,213,223, - 267,269,275, 224,225,228, 276-278,280, 233,234,237, 282-288,290, 238,239,241, 291,292,299, 251,253,254, 300-314,317 257,258,261, - 263,2~4,265, 270,271 272, 273,274,279, 281,289,294, " 295,297298, 315,316 Comments about Specific Trees Many, ifnot most, of the Coast redwood (S. sempervirens) Trees # 18-24,27,28,29,168,169, and 254-316 will decline if they are not irrigated throughout the construction period. Tree # 174, a California sycamore (P. racemosa) has a trunk diameter of 55 inches at 4 1/2 feet above grade. The canopy spread is about 70 feet. This is tbe second largest tree on this property. The largest is a 57 inch diameter valley oak (Q. 10bata), which is dead, Tree # 174 is almost surrounded by paving inside its drip1ine. It appears that this has had a detrimental effect on the health ofthis specimen over the years. The Monterey pine Trees # 187 and 188 appear to be in good condition, but they are under a severe attack by the red turpentine beetle (Dendroctonus valens). It is likely that these trees will decJine significantly by the end of this year. Ifthese trees were thoroughly irrigated regularly, these trees may be able to overcome this attack. Several ofthe Shamel asb trees are perfonning poorly. This is primarily a result oflack of irrigation. Specimen Trees The City of Cupertino (Chapter 14.18) " finds that the preservation of specimen and heritage trees on private and public property, and the protection of all trees during construction, is necessary for the best interests of the City and of the citizens and the public thereof." The City "finds it is in the public interest to enact regulations controlling the care and removal of specimen and heritage trees"." A "Heritage Tree" means "any tree or grove of trees which, because of factors, but not limited to, its historic value, unique quality, girth, height or species, has been found by the Architectural and Site Approval Committee to have a special significance to the community," A "Specimen tree" means any of the following: Prep81"ed by: Michael L. Bench, Consulting Arborist July 21", 2005 8 D COATE 408 3581288 08/18/05 12:83pm P. øØS EVALUATION OF num.."; LOCATED AT FINCH AVHNUHAND STEVENS CREEK HOUU..:YARD AND VAlJ£OPARKWA Y AND NORTH TANTAU AVENUE. CUPERTINO FOR TOT,¡, OF C\ß'ERTINO 4 Species Measurement from Natural Grade 4 Y, feet Single Trunk Diameter/Circumference ] 0 inches (31 inches C) Multi-Trunk Diameter/Circumference 20 inches D (63 inches C) Oak trees; California Buckeye Big Leaf Maple; Deodar Cedar; Blue Atlas Cedar 4 Y, feet 12 inches (38 inches C) 25 inches D (79 inches C) The specimen trees at this site are Trees #J 26,212,213,214,215,251,252, and 253, However, Tree # 126, a valley oak (Q. lobata), is dead. AU of these other specimen trees are coast live oak (Quercus agrifolia) trees, Risks to Trees by Proposed Construction It appears that the majority of the trees located in the interior areas of the three sections of the property would be removed, and that many of the trees located along the perimeter of the property would be retained, However, there may be exceptions to this general observation due to grading or other requirements, Also, the proposed plan is preliminary and it is likely that design changes may require revision of the following comments evaluating construction risks. With the exception of Trees # 126 (dead) and # 212, the "Specimen" trees (# 213, 214, 215, 251,252, and 253) would be preserved, Presently the following trees would be in conflict with construction features, which would require their removaL I. Trees in conflict with driveway construction: Trees # 1,2,16,48,59,60,95,99, 136,140,150,152,154,155,162,173,175,196, 197, J99,200, 201,203,218, 219, 226,229,231,232,233, and 238, 2, Trees in conflict with buildings: Trees # 11, 13, 14, 15, 17, 19, 102, 103, 105-111, 124,125,126,157,158,159,160,161,163,164,165,167, 168,171,172,174,179, 184,185,186,187,188,189,190, J91, 210, 211, 212, 216, 217, 223, 224, 234, 235, 236,237,239, and 240. Ofthese, Tree # 212, a coast live oak, is a "Specimen" tree, It has a trunk diameter of 16 inches and is in excellent condition, It would be a good candidate for transplanting, 3. Trees in conflict with pathways or sidewalks: Trees # 18,58,70,71,228, and 230, 4. Trees in conflict with paved areas: Trees # 40-47, 50-56,100,115-121,123, and 128, 5. Trees that appear to be in conflict with grading: Trees # 6 J -69, Prepared by: Michael L. Bench, Consulting Arborist July 21", 2005 B D COATE 408 8581288 08/18/05 lZ:88pm P. 007 EV AL1JATlON Of TREES LOCA1ED AT ,lNCTt A VENUE AND STEVENS CRŒK BOULEV AIm AND VALl.CO PARKWA Y AND NORTH TANTAU AVENrm, C'lJPm~TINn FOR TOfJ, OF CUPERTINO 5 In addition to these trees that would be directly in conflict with construction, there are several trees (all non-specimen trees according to city code) that may be so severely damaged by construction that they would n9t be expected to survive, These are Trees # 72, 74, 76, 78, 80, '82,84,86,88,90,114,166,169,183,101,104,195, 221, 2~2, 225,12,22,49,71,73,75,77, 79,81,82,85,87,89,91,94, 122, 176,204,206, 180, 181, 122,220,227,241, and 317, Candidates for Transplanting Of all of those trees that would be directly in conflict with construction or would be severely damaged, the following trees would be acceptable candidates for transplanting; Trees # 94 and v 95 - Canary Island date palm (Phoenix canariensis) Trees # 18, 19, and 169 - all three 17 inch diameter coast redwoods (Sequoia sempenJirens) Tree # 22 - 21 inch diameter coast redwood (Sequoia .,empervirens) Tree # 212 - 16 inch diameter coast live oak (Quercus agrifolia) Tree # 222 ..I. Multi-stem Japanese maple (Acer palmatum) The success to be expected, when deciding transplant feasibility, is based on a combination of factors, including: · The adaptability of the species to severe root pruning. · The health of the individual specimen. · The size of the specimen, · The structural condition ofthe specimen, Value Assessment of "Specimen Trees" The values of the "Specimen trees" for this project are calculated according to ISA (International Society of Arboriculture) standards, 9tl' Edition, Trunk formula method. The trunk formula worksheet made available by the ISA is used to complete the appraisal of Tree # 212, as examples of this method, However, in the interest of economy, I have applied the trunk formula method to a spreadsheet for the calculation of the 8 "Specimen" trees. This spreadsheet contains all of the steps required by the trunk formnla method to achieve the same calculations that would be achieved by the individual worksheet form. The total value ofthe 8 trees (#126, 212, 213, 214, 215, 251, 252, and 253) is $38,630. Protection of Trees I. It would be essential to remove paving and curbing within the driplines of trees without significantly disturbing the soil directly beneath the paving, This may be done by removing small pieces of the paving by hand. An alternative method could be with a back hoe. The procedure would be: · to keep the tractor outside the dripline at all times, · to use the bucket to reach inside the dripline to catch an edge of the paving and to peel the paving back toward the tractor. · by this method, pieces of paving would be flipped on top of unbroken paving, then pulled across the unbroken paving outside the dripline, where the paving could be loaded onto a truck. Prepared by: Michael L. Bench, Consulting Arborist Juty 21",2005 B D COATE 408 8581288 08/18/05 12:88pm P. 00a EV ALUA'l10N OF TREES LOCATED AT FINC] ( ^ VENUE AND STEVENS CREEK BOULEV ART) AND V ALlen PARKWAY AND NOR'IlT TANTAU A VENUE. CUPERTINO FOR TOLl, OF CUPERTINO 6 · Immediately following the demolition and removal of paving inside the driplines of protected trees: · the exposed soil must be covered immediately with course wood chips to a minimum depth of 3 inches · the area must be thorougWy wet down immediat.e1y · this area must be kept damp for at least] month 2, Once paving is removed, protective fencing must be installed at the dripline of preserved trees, This fencing must protect a sufficient portion ofthe root zone to be effective, For those trees that have oblique canopies, it would be essential to locate the fencing a minimum radius distance of 10 times the trunk diameter in all directions from the trunk, which may be outside the dripline. For example, a tree with a trunk diameter of]5 inches dbh (Diameter at Breast Height = 54 inches above grade) would require that protective fencing be erected 13 feet minimum from the trunk. Ifhardscape (i,e., curbing, paving, etc,) exists inside this 13 foot radius, the protective fence must be erected at the edge of the hardscape feature and be located at least 13 feet from the trunk minimum on all other sides, Occasionally it may be essential to have a certified arborist make decisions about the 10cation(s) of protective fencing at the project site, That protective fencing must: · Consist of chain link fencing and having a minimum height of 6 feet. · Be mounted on steel posts driven approximately 2 feet into the soil. · Fencing posts must be located no more than 10 feet apart, · Protective fencing must be installed prior to the arrival of materials, vehicles, or equipment. · Protective fencing must not be moved, even temporarily, and must remain in place until all construction is completed, Note: In my experience, less substantial fencing is not respect.ed by contractors, 3. There must be no grading, trenching, or surface scraping inside the driplines of protected trees, unless specifically approved by a certified arborist. This includes trenches for any utilities (gas, electricity, water, phone, TV cable, etc,), 4, It would likely be essential to irrigate most preserved trees throughout the entire construction period during the dry months (any month receiving less than linch of rainfall), Irrigate a minimum of 10 gallons for each inch oftTUnk diameter every two weeks. A soaker hose or a drip line is preferred for this purpose. 5, The entire area inside the driplines of preserved trees must be mulched. Mulching consists of a protective material (wood chips, gravel) being spread over the root zone inside the dripline, This material must be 4 inches in depth after spreading, which must be done by hand, I prefer course wood chips because it is organic, and degrades naturally over time. Wood chips must be y. to % inch in diameter primarily. One supplier is Reuser, Inc" 370 Santana Dr., Cloverdale, CA 95425, (707)894-4224, .Prepared by: M;chael L, Bench, Consutting Arbor;st July 21", 2005 B D COATE 4Ø8 8581288 Ø8/19/Ø5 12:88pm P. øØS BY AI.{JATI0N OF JREE..') LOCATED AT FINCf- ^ VENUE AND STEVENS CH.ElìK BOULEY ARD AND V ALLCO PARKWAY AND NORTH TANTAlJ A VENtÆ. CUPERT1NO FOJ{ TOLL OF CtWER]lNO 7 6. At locations where construction would occur inside the dripline of a preserved tree, J recommend that a root buffer be required to protect that portion of the root zone, which would exposed to soil compaction by worker activity, A root buffer consists of: . a 6 inch layer of course wood chips · topped with full sheets of I-Yz inch plywood tied together, . The wood chips must be course (approximately:y. inch in diameter or larger)to be effective (shredded redwood is not acceptable for this purpose due to its compressibility). · The wood chips must be spread by hand over the existing soil gmde to a minimum depth of 6 inches over the specific area to be protected. · The plywood must be secured to prevent slippage, · This root buffer must be installed in conjunction with protective fencing and must remain in place until all construction is completed, 7. If any, old irrigation lines, dmin lines, sewer lines, or any other underground features exist inside the driplines of protected trees, but would not be used, I recommend that they be cut off approximately at soil gmde and left in the ground, 8. Materials must not be stored, stockpiled, dumped, or buried inside the driplines of protected trees, 9, Excavated soil must not be piled or dumped, even temporarily, inside the driplines of protected trees, 10, Any pruning must be done by an arborist certified by the ISA (International Society of Arboriculture) and according to ISA, Western Chapter Standards, 1998. II. Any pathways or other hardscape inside the drip1ines of protected trees must be constructed completely on top of the existing soil grade without excavation. .FiIl soj] may be added to the edge of finished hardscape for a maximum distance of approximately 2 feet from the edges to integmte the new hardscape to the natural grade. 12. The sprinkler irrigation must not be designed to strike the trunks of trees. 13, Landscape irrigation trenches must be a minimum distance of 10 times the trunk diameter from the trunks of protected trees, 14. Landscape materials (cobbles, decomtive bark, stones, fencing, etc,) must not be installed directly in contact with the bark of trees because of the risk of serious disease infection, Prepared by: Michael L. Bench, Consulting Arborist July 21", 2005 B D COATE 408 8581288 08/19/05 12:88pm P. 010 EV ALUA TION OJ' TREES LOCATED AT FINCH A VENUE AND STEVENS CREEK BOULEVARD AND V ALLCO PARKWAY AND NORTH T ANT AU A VENUE, CUPERTINO FOR TOLL OF CUPERTINO 8 15, The plants that are planted inside the driplines of oak trees must be of species that are compatible with the environmental and cultural requirements of oaks trees, A publication about plants compatible with California native oaks can be obtained from the California Oak Foundation, 1212 Broadway, Suite 810, Oakland 94612. Respectfully submitted, c:ø.t'!-¡,~:"'f: ~ ~ Michael L. Bench, Associate ~ . "" Barrie D. Coate, Principal MLB/sh Enclosures: Tree Charts pages 1 - 32 Map Tree Value Chart Trunk Formula Chart Assumptions and Limiting Conditions Prepared by: Michael L. Bench, Consulting Arborist July 21", 2005 8 D COATE 408 8581288 08/19/05 12:88pm P. 011 Trunk Formula Method 9'h Edition, Guide for Plant Appraisal for Trees Less Than 30" diameter Owner of Property (tree): TOLL OF CUPERTINO PROJECT Location: Va11co Parkway and North Tantau, Cupertino Date of Appraisal: July 21 ", 2005 Date of Failure: N/A Appraisal Prepared for: Kelly Snider, Toll Bros, Construction Appraisal Prepared by: Michael L. Bench Field Observations of Sub;ect Tree 1. Species: Quercus agrifolia Tree/U12 - 2, Condition: Excellent 100% - 3. Trunk Diameter, Inches: 16 inches 4. Location Value %: Site 75 % + Contribution 80 % + Placement 60 %=~+3= 72% ReKhmal Plant Appl'ai.va.l Corm!!:!ttee Irr/Òrmation 5, Svecies Ratin~ 100% - 6. Replacement Tree Size (sq. inches) TAR: 14.6 in. 7. Replacement Tree Cost: - $ 902,50 8, Installation Cost: -cc----~.._.~- $ 902.50 9, Installed Tree Cost (# 7 + # 8): $1,805,00 10. Unit Tree Species Cost (per sq, inches): $ 37.00 per in2 CalcIIlations Usin¡; f'll!ld and Regional CommWee Information 11. Appraised Trunk Area Trunk Diameter, Squared (#3) x 785 = -.1QLsq, in, ]2, Appraised Tree Trunk Increase (T A'Ne,) - T A, ----.M!! in. (# I !l- T A, 14,6 sq,,!~, (#{j) = __~~in,. 13, Basic Tree Cost: (TA"",,) (#12) 186,'1 sq, in. x UTC (#]0) $ 37.00 per sq. in. + Installed Tree Cost (I!.2.l $ ].805 = $,-ª. 702 , 14. Appraised Value: Basic Tree Cost (#13) $ 8 702 x Species (#5) 100% x Conditi0'!i#2) 100% x Location (#4) 72 % = $ 6265 -, 15, Round to nearest $100 ($5,000+) or $10 (less than $5.000) = $ 6.300, B D COATE 4ØS 3581288 ØS/19/Ø5 12;83pm P. Ø12 It) 0 0 N 0; 0 0 g' 0 g 0 1i 0 '" 0 0 0 '" ~ ." '" It) CO CO CO CO .... 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'1 "I .¡ 11 _!"-J. ~...""'"~-- ,Ñ _.'='-'->:- _,~I I 8 D COATE BARRIE O. COATE and ASSOCIATES Hor1icutural Consultants 23535 SummitRoed Los Gatos. Gft. 95033 408135~ 1052 408 3S81zsa 11/04/05 01:58pm P. øØZ ADDENDUM TO TREE SURVEY REPORT DATED JUL Y 21 ST, 2005 FOR TOLL OF CUPERTINO PI'epared at the request of: Gary Chao City of Cupertino 10300 Torre Avenue Cupertino, CA 95014 Prepared by: Michael L. Bench Consulting Arborist October 30'h, 2005 Job # 07-05-135 , B D COATE 408 8531288 11/Ø4/05 01:58pm P. øøa ADDENDUM TO TREli SURVEY REPORT [)AŒD TIll. Y 211rf. 2005 FOR TOLl, OF CUPFRTrNO Assignment I was asked by Gary Chao, Planner, City of Cupertino, to prepare an addendum to the Tree Survey Report, dated July 21, 2005, in response to the recently revised Site Plan showing proposed features, Specifically J was asked to comment on: · any trees that may not survive regardless of construction · trees which are candidates for transplanting · a replacement tree strategy (species, size, quantity, locations) · mitigation recommendations for trees to be for preserved The revised plan provided for this commentary is the Calabazas Place Existing Tree Exhibit prepared by BKF Engineers, dated 10-05-05. In order to comment about individual trees, J have added the assigned tree numbers to this plan, Trees in Poor Health Trees # 2, 3, 5, 51, 53, 88, 89, 127, 130, 133, 136, and 144 are noted on the plan ro be preserved, However, the current health of these trees is very poor. They are not expected to recover even if given excel1ent care, However, in the event that they are preserved, I expect that they would gradually decline for a few years before they succumb to disease or insect infection, which is the typical outcome of very weak specimens. For this reason, [ recommend that these trees be replaced regardless of construction, provided there would be adequate space for this nwnber of replacement trees. Many of the Shamel ash (FraxinuI' uhdel) are in only fair condition (rated as a 3 on a scale of 1-5, in which I is excel1ent; 5 is extremely poor) as noted in the tree survey of 7-2\-05. It is conceivable that the structure of some of these trees may decline by the time construction gets under way, Should this occur, I wouJd recommend that those be replaced at that time, Currently those rated as only tàir are expected to be preserved. Tree., Proposed to Be Removed The Existing Tree Exhibit prepared by BKF Engineers states in the Legend that 149 trees would be removed, I am only able to find 132 individual trees that are shown to be removed on this plan, However, this plan shows construction features that would result in root loss or canopy loss which may be too excessive to allow survival for some of the existing trees that are shown to be preserved, Without greater plan detail, it is not possible to estimate more accurately the quantity of root loss to some trees, and the quantity of both root loss and canopy loss to other trees. However, it may be useful to note that root loss and canopy loss are not separate and unrelated damage. Typically a very healthy tree can tolerate approximately 20%-25% total loss (both root loss and canopy loss) and still survive in good condition, provided the tree is irrigated during the dry months ofthe year for 1-2 years, A weak specimen (i,e, one in only fair health) may not survive a 25% loss regardless of irrigation or aftercare. It appears that some of the Shamel ash trees, currently slated for preservation, located on both sides of Vall co Parkway and on the west side ofN, Tantau Avenue, may suffer root and/or canopy losses greater than 25%, In this event, at least some of the trees shown to be preserved would not be expected to survive in stable condition over the long term, The trees that appear to be at greatest risk are Trees # 42, 44, 46, 48, 49, 60, 61, 62, 64, 66, 68, 69, 74, 78, 80, 82, 86, 88, 90, 166, and 167. Prepared by: Michael L. Bench, Consulting Arhorist October 30th. 2005 8 D COATE 408 3531238 11/04/05 01:59pm P. ØØ4 ADDßNDUM TO lREE SUH VEY REl">( )l{T D^TED JULY 21~. 2005 fOR 2 TOLL OF CUPERTINO Replacement Strategy The removal of 132 trees, (or 149 trees), without replacement, would be a substantial loss to the overall urban forest in this area. However, some individual trees make a much greater contribution to the site than other trees, For example, the following two exceptionally healthy specimens are compared: Tree # 17 _ Shamel ash, 25 inch diameter, 50 feet height, Tree # 197 - Indian hawthorne, 6 inch diameter, 10 feet height, 50 teet spread 1 0 feet spread Additionally, specimens of similar height and spread in Fair or Poor health do not make as great a contribution as exceptionally healthy specimens, because of their reduced canopy density. I recommend that the replacement strategy reflect the contribution of each specimen, which is planned to be removed, 1 Sllggest the following categories of replacement: A - 1- 48 inch boxed tree B-2 - 36 inch boxed trees C - I - 36 inch boxed tree D - 2 - 24 inch boxed trees E - I - 24 inch boxed tree F - I - 15 gallon tree G _ No replacement recommended for dead or small extremely poor specimens The 132 trees shown to be removed are recommended to be replaced as follows: f-- Size and Ouantitv Number Name DBH Condition Replace- 15" 24" 36" 48'~ ment f--- ---- Cateeorv -- ] S. ash 22 Fair C I 11 C. elm 18 Good B 2 -. 12 C,elm ..- I---) 9 Good B 2 __13 S, ash 1--4,3 Good G 0 ---- -.. - _)4 S, ash 4,3 Good G 0 - 15 S, ash 4,3 Good G 0 16 _---ª= ash __ _U,L Good F .- -" 1 f-----,-. -----~- - 17 S. ash ,25 Excel A I 20 C, redwood 16 , _ ExceL_I-_ A I ----- -. __ 23 _._ ~ redv.'()o<L 19 Excel A I - 24 C. redwood 18 Excel A I 25 C. elm 16 Good C I 1--...26 C. elm 16 Good C I - f--_27 C. redwood 14 Excel B 2 ~---- 28 C. redwood 18 Excel A J 30 S, ash 18 I---Good B 2 i----"-'"c-.-- 3] S. ash 17 ,_ Goog_ B 2 1-------.." -------- ------ -..--- 43 S. ash 18 Good B 2 -- SlIb-total 0 1 0 IS 5 --~- -- ------ - Prepared by: Michael L. Bench, Consulting Arborist October 30111> 2005 B D COATE 408 3581238 11/04/05 01:59pm P. ØØ6 A[)J)END\1MTOTREH SlJRVl':Y REP()HT J)Al1m JIIJ..Y 211<1', 2005 F<>H TOll OF GI.WERTrNO 3 ~- .. . Size and Quantitv Number Name .DBH Condition Replace- 15" 24" 36" 48" ment ---¡7 -- -..- ..- Cat~ry S. ash 13 Fair __. E 1 ... ---.- -.-.-----. -. .-- 59 S, ash 13 Fair E 1 99 C. DeDDer 26 Fair C . 1 101 C.Y~~._ 1-_14,10 Poor 8 1 - 102 B. acacia 12,10 Good D 2 103 B. acacia 12,11 Good D 2 .. 104 B, acacia 12 Good D 2 105 B. acacia 8,7 Good E 1 ---- -- 106 B, acacia !1,9 Good D 2 107 81m 9 Fair F I -- -, . .. 108 Elm 11 Dead G 0 109 Elm 7,5 Good E 1 110 Elm 19 Excel A 1 III Elm 7 Good F I - 112 O,:ange 7,6._ Poor F I 113 A. pi ne 69 Fair . A . I 114 Elm 17 Excel C 1 - 115 Elm 21 Excel ~- .----- 2 .- 116 Elm 18 Excel C 1 ,. 117 S. wattle 10 Good F I 118 E, walnut 8,6 Good D 2 119 E. walnut 8 Poor F I 120 E. walnut 9,9 Good E I 121 __ E. walnut 7,6._ Dead G 0 -~-'--.~ - - 122 E, walnut 16 Dead G 0 -- -- 123 E, walnut 13 10 Poor E 1 124 Orange 10,6 Fair F I 125 S, dollar æ!!P 16,16 Good B 2 126 V. oak 57 Dead G 0 137 S, ash 24 Fair D 2 138 S. ash 14 Fair E 1 139 S, ash 10 Poor F 1 150 S, ash 24 Fair D 2 .. 152 S, ash 20 Fair D 2 154 S, ash 18 Fair D -- 2 155 S, ash 10 Good D 2 ... 156 S, ash 14 Good C I - __157 S, ash 19 Fair D 2 158 S. ash . 19 Good B 2 .. __n _ 159 S, ash 26 Fair B 2 ------ . 160 S, ash 25 Fair B 2 -- Sub-total 0 7 30 14 2 ._-~--- Prepared by: ,Michael L. Hench, Consulting Arbodst Oclobcr 30110, 2005 B D COATE 4øa 3531288 11/04/05 Ø1;S8pm P. øØS ADDENDUM TO TREE SURVEY REP<I,RT IJATED JVL Y 21¡;T, 2005 FOR TOLl OF CUPERTINO 4 ,- . . Size and Ouantitv Number Name DBß. Condition RelJlace- 15" 24'~ 36" 48" ment ----u¡ 1 Cat....rv S, ash 7 Good E I - 162 S, ash 14 Good C 1 t63 S, ash 21 Good B 2 164 S, ash ,-- 21 Fair C . 1-- 2 165 S, ash 13 Fair E 1 168 C. redwood 17 Excel A 1 - 170 H. locust 8 Poor G 0 171 _.J:T..:.tQ£ust___ 6 Fair F 1 1----, t--- 172 H. locust 6 Fair F I 173 H. locust 6 Fair F 1 C. svcamore - 174 55 Fair A 1 175 M. nine 16 Excel A 1 176 M,nine 15 Excel A I 177 -~~~- 21 Good A I 178 S, ash 9 Good C 1 179 S, ash . 21 Good A 1 180 S, ash 22 Good A I 181 M. nine 9 Good C ] -- _n_ 183 S.ash 10 Good D 2 184 S, ash t-- 8 Fair E I 185 S. ash 6 Fair E _-1- 186 S. ash 6 Fair E 1 187 M,nine 19 Excel A 1 188 M. Dine 17 Good A _.L 189 M. pine 15 Good B 2 190 E. Dear 7,5 Fair F 1 191 E, near 8,8 Fair F 1 192 _E, pear 11 Fair F 1 - -. 193 E. pear 6,5 Fair F I 194 E. 2ear 9,6 Fair F I 195 E. Dear 13 Good E I 196 S, ash 14 Good 0 2 197 L Hawthorne 6 Excel F 1 198 I. Hawthorn 6 Excel ------ F 1 199 I. Hawthorne 7 Excel F I - - 200 I. Hawthorne 7 Excel F I 201 ¡_J. Hawthorne 6 Good F I - 203 R, ash 12 Fair E 1 204 1-- R, ash -- __ 9. Fair E J _:_-- 205 R, ash ]0 Fair E I 206 Rc~~~_ .- 6 Fair E 1 ----- -_._---~- Sub-total 0 13 16 7 9 ----------.-- ------ ~----- Prepared by: Michael L. Bench. Consulting Arhori::;t October 30''', 2005 8 D COATE 408 3581238 11/Ø4/05 Ø1:59pm P. ØØ7 ADDENDUM TOTRßE SURVEY REPORT DATED JULY 21Hr, 2(\05 I'OR TOLl or C( 'PCR T[NO 5 '. '" - CÕllditlon Size and Ouantitv Number Name DBH Replace- 15~ 24" 36" 48" ment -- ,-- Cate201'V 207 R. ash 7 Fair E I -,- 210 H. locust 6 Fair E I 211 H. locust 8 Good E 1 216 Yew nine 7 5 Good D 2 -.?17 Yew vine 8 5 Good D 2 218 S, ash 22 Good A I ,- 1--. Excel 1 -.?J 9 __ S, ash 21 A -- Excel I _.220 S, ash 2~__ A -- -- ,.- 221 S, ash 12 Fair E I -, 1 223 S, ash 20 Good A 224 S. ash 25 Good A I 225 S, ash 20 Good A 1 226 S, ash 16 Fair D 2 227 S, ash II Fair E I 228 S, ash 11 Good D 2 229 S, ash 15 Excel A I 230 S, ash 15 Good B 2 231 S, ash 9 Excel C 1 - .--- 2 _J32 S, ash 13 Excel B - -. 233 S. ash 14 Good C 1 234 S, ash 15 Good C 1 235 S. ash 27 Good A I 236 S, ash 12 Fair D 2 __ 237-_ S, ash 11,8 __ Go~d C 1 - 238 S, ash 8 Fair E I 239 S, ash 7 Good D 2 240 S. ash .13 Fair E ] .- 241 S, ash 12 Good D 2 242 S, ash 12 Fair D 2 243 S. ash 17 Good B 2 282 C. redwood ]] Excel B 2 308 C. redwood 15 Excel B 2 Sub Total 0 I 22 14 8 Totals 0 22 68 50 24 The density of the construction at this site may make it difficult to find room for 164 replacement trees, In this event, the quantities of trees may be reduced by substituting single larger trees for 2 or more smaller trees. For example, 3- 15 gallon trees are approximately equivalent to 1- 24 inch boxed specimen. 3- 24 inch boxed trees are approximately equivalent to J -36 inch boxed specimen, Two- 36 inch boxed trees are approximately equivalent to J - 48 inch hoxed specimen, Thus, nne 48 inch Prepared by: Michael L. Be-nch, Consulting Arborist OClOber 301h, 2005 B D COATE 4Ø8 8581238 11/04/ØS 01:59pm P. øØS ADDENDUM TO TREE 'URVEY REPORT DATED .rmy 21'\ 2005 FOR 6 TOLl, OJ' C1JPERTJNO boxed specimen is approximately equivalent to 6 -24 inch boxed specimens. By use ofthis logic, the entire 164 trees could be equivalent to 2-36" boxed and 65-48" boxed trees, Recommended Replacement Species I recommend the following species as replacement trees for planter beds that would be irrigated by bubbler or drip irrigation (sprinkler irrigation would not be compatible with these species): · Coast live oak (Quercus agrifÓlia) · Valley oak (Quercus loba/a) · Deodar cedar (Cedrus deodara) · Canary Island pine (Pinus canariensis) · Chinese pistache (l'istacia chinensis) · Columbia London Plane (Platanu.v acerifolia 'Columbia ') I recommend the following species oftrees that may be planted in lawn or in areas that would be irrigated by sprinkler irrigation: · Southern Live oak (Quercus virginiana) · Bald cypress (Tamv di.vtichllm) · Dawn redwood (Metasequoia glypto.vtroboides) · Tupelo (Nys.w .'ylva/ica) Trees to be Transplanted The following] 2 trees are proposed to be transplanted: Trees # 18, ]9,22,169 - Coast redwoods (SeqlJoia sempervirens) Trees # 92, 93, 94, 95, 96, 97 - Canary Island Date palm (Phoenix canariensis) Tree # 212 - Coast live oak (Quercus agrifi)lia) Tree # 222 - Japaoese maple (Acer palmatum) Tree # ]00 - California pepper (Shinus molle) Tree # 128 - Shamel ash (Fraxim~v uhdei) 10 my opinion, trees #100 and #128 are species oot worthy of transplanting. I suggest that trees of the same species be transplanted into the new landscape as a cluster or a row, especially the Canary Island date palms. For this reason, it may be desirable to also transplant Tree #98, a Canary Island Date palm, which is not currently shown to be a transplant candidate, Of course, a cluster of plants makes a bolder statement tllan individual specimens, 11 would be essentiaL that these trees be transplanted by an experienced tree moveI', for exampLe Valley Crest Tree Company or Trees of California, Transplanted trees would require a 3-5 year maintenance care plan, Prepared by: Michael L. Bench, ConsuHing Arbnrist October 3011., 2005 8 D COATE 40a 3531238 11/04/05 01JSSpm P. øØS ADDENDUM TO TREE SlJR VEY RBPorn D^ TED JULY 21 ST, 2005 FOR TOLJ, OF C{JPfR1TN(} 7 Sidewalks or other hardscape including curb and gutter, or paving) planned for construction inside the driplines of existing trees must he installed on top of the existing soil grade in order to prevent the risk of excessive root loss. Respectfully submitted, ~ Michael.L. Bench, Associate BarrieD,~f~ MLB/sh Enclosures: Assumptions and Limiting Conditions Maf Prepared by: Michael L. Bencn, Consulting Arborist October 30!h, 2005 APPENDIX D Cultural Resources Report boLrna~ASSOCIATES Anchaeologícal Consultants "SINCE THE BEGINNING" 3ô1S' FOLSOM ST. CALIFORNIA 94110 SAN FRANCISCO, 41S'/S"S'0-7.2Bô Judy Shanley Dave Powers & Associates 1885 The Alameda San Jose, CA 95126 Apri125,2001 Dear Ms. Shanley: RE: ARCHIVAL RESEARCH AND FIELD INSPECTION OF THE PROPOSED 25 ACRE COMPAQ COMPUTER CORPORATION ADDITION, STEVENS CREEK ROAD, CUPERTINO, SANTA CLARA COUNTY, CALIFORNIA At your request I have completed an archaeo10gica11iterature review and field inspection of the above referenced project area in the city of Cupertino, Santa Clara County, California. No surficial evidence of cultural resources was discovered during the field inspection. There is however a potential for buried historic and/or prehistoric materials; recommendations are made concerning this potential. SITE DESCRIPTION The proposed project consists of the development of additional buildings adjacent to the existing Compaq facility located south of Highway 280 east of Wolfe Road in Cupertino, Construction will occur in currently open space located north of Stevens Creek Road. Located on the Cupertino U.S.G.S. map ofthe area, the borders of the current project area can be described as Stevens Creek Road on the south, an existing building complex on the west, Valko parkway on the north and Tantau A venue on the east. The project area is currently an open field: Finch Road (to be abandoned) separates a small portion of the project area which is made up west of Finch of existing parking lots. East of Finch Road the project area consists of a barren field containing a sporadic rim of ornamental trees (oak, palm and pine or cedar). At approximately the mid point between Tantau and Finch Road two ancient palms mark the entrance to what was probably an historic settlement north of Stevens Creek Road in the middle of the open field. Remnants of walnut orchard (cut stumps) are found in small areas to the west and east of the concentration of ornamental trees which marked the possible location of an historic residence. ARCHIVAL RESEARCH Prior to the actual field inspection, an archaeological literature review was conducted by this author at the Northwest Information Center (NWlC) located at Sonoma State University (file no. 01-340). There no historic and/or prehistoric sites recorded either inside or within a quarter mile of the project area, and there has been no formally recorded archaeological study of the project area in its entirety, although there was a survey of the original alignment ofCalabazas Creek in 1974 by Rob Edwards with negative findings. This survey was limited to the immediate banks of the creek before it was undergrounded, and did not take in adjacent lands. Additional archival research was conducted by Dr. Richard Ambro of Holman & Associates at the Bancroft Library at U.C. Berkeley to trace the historical uses of the land utilizing the resources of their Map Library. During the Mexican era the land fell within the boundaries of the Rancho Quito, 13,309.85 acres ofland in today's Saratoga-Campbell-Cupertino area. Three square leagues were granted by Governor Alvarado to Jose Noriega and Jose Zenon Fernandez in 1841 (Arbuckle and Rambo 1968:27; Hendry and Bowman 1940:898-901). The origin of the name of the rancho remains a mystery. According to Hendry and Bowman, the grantees transferred the land to Ignacio Alviso on July 8, 1844, just before Fernandez's death. The United States patented the rancho to the Fernandez heirs and Manuel Alviso in 1866. The sites of the original wattle and palizada dwellings of Fernandez and Noriega are unknown. Hendry and Bowman do not indicate that the project area contained any buildings of the Mexican era. Arbuckle land Rambo noted that a recent distinguished occupant of a part of this ranch wad Edward E1izur Goodrich of Quito Olive Fann fame. Arbuckle and Rambo also noted that olive trees rrom Rancho Quito were transported to San Francisco's Treasure Island for landscaping of the 1939-40 World's Fair. U.S.G,S MAP OF 1899 This map shows the broad grid of section divisions and open agricultural land use pattern. The intersection of to day's Stevens Creek Blvd. And De Anza Blvd. Had a small cluster of buildings labeled "West side", the forerunner of Cupertino. The project area and its immediate environs was open, with Ca1abazas Creek flowing northeast. A small cluster of four buildings are spotted on the east bank of the creek just north of the road now called Stevens Creek Blvd, all of which are apparently located inside the project area, u.S.G.S. MAP OF 1943 By this date "West Side" is now called Cupertino. While there is evidence of the development of the surrounding orchards into housing, there is little change to the Current project area. One of the creekside buildings spotted in the project area on the 1899 map had disappeared, and a short north oriented access road was indicated linking the easternmost two structures to Stevens Creek Blvd. U.S,G.S, MAP OF 1953 The general area remains agricultural, although Stevens Creek Blvd. Is now indicated as a 2 major road. Orchards, present for many years now, still cover most of the Cupertino area. There have been several changes to the project area evident in spite of the "tree" graphics which obscure the maps: the creek is still open, but the easternmost structure has been removed and replaced by another closer to Stevens Creek Blvd. A large presumably commercial or "industrial" structure has been built immediately east of the new small structures. This may have been a warehouse, "barn" for produce, or it had another undetermined use. Given the proximity of trees all around it, it very likely served the production needs ofthe surrounding orchards. U.S.G.S MAP OF 1973 This map reveals major development of Cupertino and construction of the freeway north of the project area. The project area was still open and agricultural with no changes from the 1961 map. For the first time, what would become or was already Tantau had been extended partway north of Stevens Creek Blvd., and part of future or new Vallco Parkway had been extended eastward from Wolfe Road. The last U.S.G.S map of the area shows no alteration to the project area, but does depict the development of offices and shopping to the north and east; the creekbed was evidently untouched, and remains so on a California Automobile Association map of 1991, although this may have been in error-a 1974 archaeological survey of the creek for its channelization must have let to this work being completed in the 1970s or 80s at the latest. DESCRIPTION OF FIELD INSPECTION The actual visual inspection of the project area was conducted by this author with the aid of project maps provided by Powers & Associates. The ground surface was inspected by walking 20 meter transects from the south to the north throughout. Visibility of the ground surface was excellent due to a complete lack of ground cover during early April: with the exception of a small area of grass covered ground found west of Finch Road, the remainder of the parcel is covered by clay loam containing large amounts of gravels, evidently imported to the site. Episodes of historic dumping are evident on the surface, and there are several small piles of historic debris probably associated with the demolition of small buildings/shacks located near the center of the property where a concentration of ornamental trees mark the location of what may have been a residence: entry to this concentration of trees is made between two ancient palms located north of Stevens Creek Road. This area is also bracketed by the remains of what appear to have been walnut orchards, now cut down to stumps barely protruding from the ground. The visual inspection turned up no evidence of prehistoric archaeological deposits, and no historical deposits which could be easily dated to 50 years or more. It would appear that the past 20 or more years have led to the systematic removal of any historic materials from the surface of the ground, leaving behind a totally denuded landscape other than the rim of historic trees found along Stevens Creek Road; a more recently planted fringe of ornamental trees are found along Tantau and Vallco Parkway. 3 FINDINGS/RECOMMENDA nONS Although the visual inspection of the project area failed to discover any prehistoric or historic archaeological materials, this report concludes that there is still some potential that future developmentof the area, in particular if it requires massive underground excavation, may encounter both types of material in a buried or obscured state. Prehistoric materials associated with aboriginal settlements along Ca1abazas Creek could still be located by grading and/or excavation: the original Edwards report was restricted to the banks of the existing creek, a fact that led him to remark that he was unable to speculate on the presence or absence of prehistoric materials adjacent it, It is unclear just where the realigned and buried Calabazas Creek is located, and if archaeological materials were discovered during its excavation at some point over the past 20 years. What is known however is that development throughout the Santa Clara Valley adjacent to established water courses has uncovered numerous buried archaeological sites. Finally there is the potential for the discovery of buried historical archaeological resources associated with the cluster of buildings which appear on the east bank ofCalabazas Creek north of Stevens Creek Blvd. inside the current project area. While the limited archival research done to date has not established the type of construction which existed at this location since the late 1800s, the landscaping remnants suggest that there was both a resideritia1 complex there and some sort of farming support facility as well. Both these resources could contain buried archaeological deposits (dumps, filled in wells, privy pits, possibly cellars) which could prove invaluable in filling out the history of this piece of property, its inhabitants and the role it played in the development of historical Cupertino. It is thc recommendation of this report that a program of archaeological monitoring be adopted for this portions of the property which will require deep excavation for foundations and/or underground parking facilities. Of particular concern is the area immediately adjacent to the original alignment of Ca1abazas Creek, which also contained the concentration of structures noted from the late 1800s onwards. Monitoring should be done at the discretion of the project monitor until it is evident that additional earthmoving will not affect either prehistoric or historic deposits, In the event of the discovery of either prehistoric or historic archaeological deposits, work should be halted within 50 feet of the discovery until the project area has submitted a plan for evaluation as required under current CEQA guidelines to the lead agency for approval. In the event that it is demonstrated that a significant archaeological deposit has been discovered which required further mitigation, a plan should be submitted to the lead agency for approval before any additional archaeological salvage and/or monitoring activities resume at the area of discovery. Sincerely 'Oil iJ. ~lT,,- Miley Paul Holman Holman & Associates 4 REFERENCES CITED Arbuckle, C.; and R. Rambo 1968 Santa Clara County Ranchos. The Rosicrucian Press, Ltd., San Jose. Edwards, Robert 1974 AN ARCHAEOLOGICAL RECONNAISSANCE OF CALABAZAS CREEK (FROM LA WRENCE EXPRESSWAY TO WOLFE ROAD) FOR THE SANTA CLARA COUNTY V ALLEY WATER DISTRICT. On file, NWIC. Hendry, G. W.; and J.N. Bowman 1940 The Spanish and Mexican Adobes and Other Buildings in the Nine San Francisco Bay Counties-1776 to about 1850, Ms. in collection ofthe Bancroft Library, University of California- Berkeley. United States Geologic Survey 1899 Palo Alto, California Quad. 15' series. Washington, D.C. 1943 Palo Alto, California Quad. 15' series. Washington, D.C. 1953 Cupertino, California Quad. 7.5' series. Washington, D.C. 1961 Cupertino, California Quad. 7.5' series. Washington, D.C. 1973 Cupertino, California Quad. 7.5' series. 1968 photo revised 1973. Washington.D.C. 1980 Cupertino, California Quad. 7.5' series. 1973 photo revised 1980, Washington, D.C. 5 APPENDIX E Geotechnical Analysis PRELIMINARY GEOTECHNICAL ASSESSMENT FINCH AVENUE SITE CUPERTINO, CALIFORNIA SUBMITIED TO TOLL BROTHERS, INC. SAN RAMON, CALIFORNIA PREPARED BY ENGEOINCORPORATED PROJECT NO. 6264.3.002.01 APRIL 21, 2004 COPYRIGIIT <:> 2004 BY ENGEO tNCORPORATED. THtS DOCUMENT MAY NOT BE REPRODUCED IN WHOLE OR IN PART BY ANY MEANS WHATSOEVER, NOR MAY IT BE QUOTED OR EXCERPTED WITHOUT THE EXPRESS WRrITEN CONSENT OF ENGEO tNCORPORA TED. ENGEO INCORPORATED GEOTECHNICAL AND ENVIRONMENTAL CONSULTANfS MATERIALS TESTING Project No. 6264.3.002.01 April 21, 2004 Mr. Michael O'Hara Toll Brothers, Inc. 100 Park Place, Suite 140 San Ramon, CA 94583 Subject: Finch Avenue Site Cupertino, California PRELIMINARY GEOTECHNICAL ASSESSMENT Dear Mr. O'Hara: With your authorization, we performed a preliminary geotechnical assessment for the Finch Avenue site in Cupertino, California. The accompanying report contains a review of prior reports, our exploration data and conclusions regarding the feasibility of developing the site from a geotechnical perspective. Weare also providing preliminary site grading, drainage and foundation recommendations for use during land planning. Based upon our initial assessment, it is our opinion that the proposed development is feasible from a geotechnical standpoint. A design-level exploration should be conducted prior to site development once a conceptual site plan has been prepared. A Modified Environmental Site Assessment Update was concurrently performed and produced under separate cover by ENGEO. Environmental considerations relating to site development are included herein, if applicable. We are pleased to be of service to you on this project and if you have any questions regarding the contents of this report, please do not hesitate to contact us. Very truly yours, ~~ t!- Micah B. Silvey Staff Engineer mbs/pcg/reviewed by jam/ls:pgex Reviewed by: <aIJ. 6288 San Ignacio Avenue. Suite A . San Jose, CA 95119 . (408) 5744900 . Fax (408) 574-4902 E-mail: engstaff@engeo.com . www.engeo.com ENGEO INCORPORATED TABLE OF CONTENTS Letter of Transmittal Page INTRODUCTION ...................,.......................,...................,.........."..........,.,.........................................1 Purpose and Scope .............................................................................................................................1 Site Location and Description..........,........,..,.... ....................................................... ............... ..... ...... I Proposed Development ....,..........,.........................,...............................,............................................ 3 PREVIOUS STUDIES................................................................,..........................................................4 Lowney Associates............................................................................................................................. 4 Peter Kaldveer and Associates. ............ ...... ................... ...... .............................. .... ..... ....... ............ .....4 GEOLOGIC CONDITIONS .................,...........,........................................................................,.........6 Regional and Site Geology ................................................................................................................6 Site Seismicity ..... .......................... .............. ........... ..... ........... ...... ..... .................. ........ ...... ........ .... .....6 FIELD EXPLORATION ...................................................................................................................... 7 Field Exploration ......... ....... ..... .... ........... .................. ................. ..... ..... ......... ........ ...... ............... ......... 7 Subsurface Stratigraphy,... ........ ........... ...... ............................. ...,. ...... ...,........ ...,. ...... ...,........ ............. 7 Groundwater .......,..............................."........................,.........,........,........................,......................... 8 DISCUSSION AND CONCLUSIONS ..,........................,................................,.........................,.......10 Seismic Hazards. ............... ..... ........... ....... ................... ..........,....... .......... ..... ...... ..... ............. ............ 10 Ground Rupture ..............................................................................................,............,............. 10 Ground Shaking .............,................................................................,...........,.............................. 10 Lurching .......,............................................,.............,............................."..........,........,............." II Liquefaction ................ ........................................,.................................,........,........... ................ 11 Densification Due to Earthquake Shaking. .................................,.............................................12 Lateral Spreading......... ,...,.......... ............,..........,.... .,............ ..... ....... ........... "..... .............. ..,...... 12 Old Calabazas Creek Channel..........,......................,...................................................,.............,.....12 Existing Fills....................................,.................................................................,.............................. 13 Expansive Soils ,...... .... ................ .................. ........ ........... ............. .... .......................... ..... ....... .... ..... 13 Conclusions ................... ........ ....................... ...... ..... ..... .... ...... ......... ,......,.,...,....... ...... ...... ...... .......,.. 14 RECOMMENDATIONS ....................................................................................................................15 Selection of Materials........,... ....... ...... ..... ....... ................. ..... ................ ........... ....... ......... ........ ......... 15 Demolition and Stripping................................................................................................................. 15 Existing Fills ................. ,.. ............... .............................., ... ......... .... ............. ........... ........... .,.............. 15 Loose or Compressible Surface Soils ......................................................................,.,.....................16 Fill Placement ................................................................,..............................,................................... 17 Building Code Seismic Information ........................................................,.......................................17 Preliminary Foundation Altematives.........,........,............................................................................ 17 Light Building Loads .........................................,....................................................................... 18 Underground and Moderate/Heavy Building Loads .,.............................,................................19 Corrosive Soils ...... ,....................... ............ ..... ................ ...........,...... .......... .... ........... ,...........,........,. 19 6264.3.002.01 April 21, 2004 ENGEO INCORPORATED TABLE OF CONTENTS (Continued) Retaining Walls ............. ...................................................................................................................19 Drainage............................................................................................................................................21 LIMITATIONS AND UNIFORMITY OF CONDITIONS ...........................................................22 SELECTED REFERENCES LIST OF FIGURES APPENDIX A - Cone Penetrometer Test Logs APPENDIX B - Lowney Associates (2000), Select Figures and Borelogs Peter Kaldveer and Associates, Inc. (1980), Select Figure APPENDIX C - Guide Contract Specifications 6264.3.002.01 April 21, 2004 ENGEO INCORPORATED INTRODUCTION Puroose and Scope The purpose of this geotechnical report, as described in our proposal dated March 30, 2004, is to identity geotechnical constraints for development that would affect land planning decisions. This report also provides a review of existing geotechnical documents, and preliminary recommendations regm:ding treatment of geotechnical constraints, site grading, drainage and foundation design. The scope of our work included a review of readily available literature and geologic maps for the project area; advancement of cone penetrometer test (CPl) probes; analysis of the gathered geotechnical data; and preparation of this report summarizing our preliminary recommendations for site development. This report was prepared for the exclusive use of Toll Brothers, Inc. and its design team consultants. In the event that any changes are made in the character, design or layout of the development, the conclusions and recommendations contained in this report should be reviewed by ENGEO Incorporated to determine whether modifications to the report are necessary. This document may not be reproduced in whole or in part by any means whatsoever, nor may it be quoted or excerpted without the express written consent ofENGEO Incorporated. Site Location and Description The approximately 25.4-acre subject site located in Cupertino (Figure I) is irregular in shape and generally bounded by Stevens Creek Boulevard to the south, Interstate 1-280 to the north and Tantau A venue to the east. The western site boundary between Stevens Creek Boulevard and ValIco Parkway is approximately 300 feet west of Finch A venue. The western site boundary north of Va1lco Parkway follows Calabazas Creek. The site includes Assessor Parcel Numbers 6264.3.002.01 April 21, 2004 ENGEO INCORPORATED (APN) 316-20-074 (7.97 acres), 316-20-078 (6.00 acres), 316-20-079 (5.45 acres) and 316-20-085 (5.95 acres) as presented on Figure 2. The portion of the site lying west of Finch Avenue contains low-lying native grasses and some areas of remnant parking. The portion of the site lying east of Finch A venue and south of Valleo Parkway is undeveloped open space containing low-lying native grasses, bare ground and a number of scattered trees. Rows of stumps are located within the eastern half of this portion of the site. The northern portion of the site, across Valleo Parkway, consists of an empty 2-story office building with appurtenant parking and landscape trees. Historically, Calabazas Creek, flowing &om south to north, meandered across the site. According to publicly-available data, around 1978, the creek was realigned to flow under the southern portion of the site, between Stevens Creek Boulevard and Vallco Parkway, through a double-box concrete culvert and then to continue north as an open channel, that defines the western site boundary adjacent to the empty office complex. It is believed that the underground culvert follows the Santa Clara Valley Water District (SCVWD) easement which parallels Finch Avenue along the eastern side of the street. Figure 2 provides the approximate location of the previous creek alignment, as well as the current SCVWD easement for Calabazas Creek. The property is relatively level and, according to existing topographic maps, is situated at an elevation of approximately 180 feet above mean sea level. A variable-height upslope borders the northeastern portion of the site associated with a ramp leading up to Interstate 1-280. A downslope occurs off the western side of the northern parcel, associated with the Calabazas Creek bank, and is approximately 15 feet in height and inclined at about 2: I (horizontal:vertical) or flatter, with a maintenance access road situated approximately 6 feet below the site elevation, off site on the creek bank. Other minor ups lopes and downslopes occur within or around the property boundaries, but are minor. 6264.3.002.01 April 21, 2004 2 ENGEO INCORPORATED ProDOsed Develooment It is our understanding that the site will be a mixed-use residential development. We anticipate that 1_ to 2-story single-family residences, and 2- to 3-story multi-family structures will be constructed. Therefore, building loads are expected to be light to moderate. 6264.3.002,01 April 21, 2004 3 ENGEO INCORPORATED PREVIOUS STUDIES Lownev Associates Lowney Associates conducted a geotechnical investigation in 2000 which included the westernmost parcel (APN 316-20-085) of the overall subject site. The purpose of their investigation was to evaluate the subsurface conditions at the site in order to provide geotechnical recommendations for a mixed-use development consisting of 4-story structures with below-grade parking. No subseqtJent development has occurred on the parcel to date. The scope of work included five exploratory soil borings down to a maximum depth of 45 feet. The approximate locations of the borings can be seen on Figure 2 and on the site plan prepared by Lowney in Appendix B. Copies of the original borelogs are also located in Appendix B. The soils encountered generally consisted of stiff silty clays down to a depth of 11 feet, underlain by interbedded layers of stiff to very stiff silty clays and medium dense to dense clayey sands and gravels, down to a depth of 45 feet. Groundwater was not encountered within the borings. A near-surface soil sample yielded a Plasticity Index (PI) of 16, indicating a moderate expansion potential. The Lowney report noted that the potential for liquefaction, lateral spreading and differential compaction were low. The geotechnical investigation recommended that proposed buildings be supported on conventional continuous or isolated spread footings bearing on natural, undisturbed soil or compacted fill. Peter Kaldveer and Associates Peter Kaldveer and Associates (PKA) conducted a foundation investigation for the northernmost parcel (APN 316-20-74) within the overall subject site. This investigation was completed for the proposed 2-story office complex, now built and identified by the address 19191 Vallco Parkway. 6264.3.002.0 I April 21, 2004 4 ENGEO INCORPORATED The scope of work in the PKA report included five exploratory soil borings down to a maximum depth of25.5 feet. The approximate locations of the borings can be seen on Figure 2 and on the site plan in Appendix B. Silty and sandy fill material was encountered in EB-2 and EB-5, extending down to depths of 2.5 and 7 feet, respectively. The soils underlying the fill material generally consisted of stiff to hard silty and sandy clays down to a depth of24 feet. Below 24 feet, the borings encountered medium dense to dense clayey sands and gravels to the maximum depth explored. Soil samples analyzed by PKA yielded PI results ranging rrom 14 to 21, indicating a moderate to moderately high expansion potential. The foundation investigation recommended that the two-story office building be constructed on conventional continuous and isolated spread footings, with a slab-on-grade floor. PKA also provided foundation recommendations regarding the proposed footbridge that crosses the realigned Calabazas Creek, stating that it should be supported on drilled cast-in-pIace piers. Additionally, PKA mentioned their involvement in at least part of the Calabazas Creek realignment and subsequent backfilling operations. No further documentation could be found in the City of Cupertino files regarding the section(s) of creek, summary of observation services, or associated testing services conducted during backfill operations by PKA. 6264.3.002.01 April 21, 2004 5 ENGEO INCORPORATED GEOLOGIC CONDITIONS Regional and Site Geology Regional geology maps locate the site in the broad, north-south trending, alluvial-filled Santa Clara Valley. The State of California, Division of Mines and Geology (CDMG, 1974) has mapped the soils at the property as old and young alluvial fan deposits (Qof and Qyf). This material is highly variable with mixtures of fine-grained sand, silt and clay, and minor gravel. Brabb, et al. (1998) has mapped the site as Holocene alluvial fan and fluvial deposits (Qhaf) as presented in Figure 3. Site Seismicity The site is not located within a State of California Earthquake Fault Hazard Zone (1982), and no known faults cross the site. Nearby active! or potentially active faults include the Monte Vista-Shannon fault, located approximately 3.7 miles southwest of the site, the San Andreas (Peninsula segment) fault, located approximately 6.5 miles southwest of the site, and the Hayward fault (southeast extension), located approximately 10.8 miles northeast of the site. A narrow potentially liquefiable zone as identified by the State of California Seismic Hazard Zone, Cupertino Quadrangle (2002), as presented in Figure 4, runs through the site in the location of the old, pre-existing Calabazas Creek alignment. Because of the presence of nearby active faults, the Bay Area Region is considered seismically active. Numerous small earthquakes occur every year in the region, and large (>M7) earthquakes have been recorded and can be expected to occur in the future. Figure 5 shows the approximate locations of these faults and significant historic earthquakes recorded within the Greater Bay Area Region. I An active fault is defined by the State Mining and Geology Board as one that has had surface displacement within Holocene time (about the last 11,000 years)(Hart, 1992). 6264.3.002.0 I April 2 I, 2004 6 ENGEO INCORPORATED FIELD EXPLORATION Field Exploration The field exploration for this study was conducted on April I, 2004, and consisted of advancing four cone penetrometer test (CP1) probes. The approximate locations of the CPT probes are shown on Figure 2. The locations were roughly sited by pacing ftom existing features and should be considered accurate only to the degree implied by the method used. The CPT equipment has a 20-ton compression-type cone with a 15-square-centimeter (cm2) base area, an apex angle of 60 degrees, and a ftiction sleeve with a surface area of 225 cm2. The cone, connected with a series of rods, is pushed into the ground at a constant rate. Cone readings are taken at approximately 5-cm intervals with a penetration rate of 2 cm per second in accordance with ASTM D-3441. Measurements include the tip resistance to penetration of the cone (Qc), the resistance of the surface sleeve (Fs), and pore pressure (U) (Robertson and Campanella, 1988). The CPT logs and collected data sheets are located in Appendix A. The CPT probes were extended to a maximum depth of approximately 50 feet below the existing ground surface. The CPT probes were backfilled on the day of the field exploration activities. No additional geotechnical soil samples were collected ftom the site for geotechnical analysis as part of this study. Subsurface Stratigraphv According to empirical correlations of the CPT data, in conjunction with a review of the previous studies, the soils beneath the site appear to consist generally of clayey material up to approximately 30 to 40 feet below the ground surface. The clay appears to range ftom medium stiff to hard, 6264.3.002.01 April 21, 2004 7 ENGEO INCORPORATED according to the empirically calculated representative Standard Penetration Test results, Below the clay, the material grades into a very dense overconsolidated material. This information is generally . consistent with logs of soil borings completed by PKA (1980) and Lowney Associates (2000). See previous section of this report and Appendix B for more details regarding the previous geotechnical reports. CPT-I and CPT-2 were located on the site to intersect the location of the old Calabazas Creek channel. CPT-I encountered medium stiff to stiff clay to a depth of approximately 23 feet (potential base of existing fill). Below 23 feet, the material changed ITom stiff to hard for clays and silts or dense for sands. CPT-2 encountered medium stiff to stiff clays down to a depth of approximately 13 feet (potential base of existing fill). From 13 to about 18 feet below grade in CPT-2, an overconsolidated material was encountered, then transitioned back to a medium stiff to stiff clay to 28 feet. Below 28 feet, the representative blow counts increased noticeably to hard for clays and dense for sands. This seems consistent with historical USGS topographic maps which indicate that the previous channel had banks ranging ITom approximately 15 to 25 feet deep. CPT-3 was situated in the eastern portion of the site near the tree-scattered area, and CPT-4 was situated in existing parking of the northern office complex. The upper 2 to 3 feet of CPT -4 likely represents fill below the pavement, which correlates with information by PKA (1980). Soil classification and strength testing will be provided in more detail during future design-level geotechnical studies, when soil samples are retrieved and submitted to our laboratory for testing. Groundwater Groundwater was not encountered within the CPT holes, or within prior exploratory borings by Lowney or PKA. It should be noted that the holes may not have been left open for a sufficient period of time to establish equilibrium groundwater conditions. Fluctuations in groundwater levels should 6264.3.002.0 I April 21, 2004 8 ENGEO INCORPORATED be expected during seasonal changes or over a period of years because of precipitation changes, perched zones, changes in drainage patterns, and irrigation. 6264.3 .002.0 1 April 21, 2004 9 ENGEO INCORPORATED DISCUSSION AND CONCLUSIONS The main geotechnical concerns for the proposed site development include: (1) potential seismic hazards, (2) the presence of existing fill within the former Calabazas Creek alignment and (3) the presence of potentially expansive soils. These items and other geotechnical issues are discussed in the following sections of this report. Seismic Hazards Potential seismic hazards resulting fTom a nearby moderate to major earthquake can generally be classified as primary and secondary. The primary effect is ground rupture, also called surface faulting. The common secondary seismic hazards include ground shaking, ground lurching, soil liquefaction and lateral spreading. These hazards are discussed in the following sections. Based on topographic and lithologic data, risk fTom earthquake-induced regional subsidence/uplift, tsunamis, or seiches is considered low to negligible at the site. Ground Rupture. The site is not located within a State of California Earthquake Fault Hazard Zone and no known active faults cross the site. Therefore, it is our opinion that ground rupture is not likely to occur at the site. Ground Shaking. An earthquake of moderate to high magnitude generated within the San Francisco Bay Region, similar to those which have occurred in the past, could cause considerable ground shaking at the site. To mitigate the shaking effects, all structures should be designed using sound engineering judgment and the latest International Uniform Building Code (UBe) requirements as a minimum. 6264.3.002.0 I April 21, 2004 10 ENGEO INCORPORATED Seismic design provisions of current building codes generally prescribe minimum lateral forces, applied statically to the structure, combined with the gravity forces of dead and live loads. The code-prescribed lateral forces are generally substantially smaller than the expected peak forces that would be associated with a major earthquake. Therefore, structures should be able to: (I) resist minor earthquakes without damage, (2) resist moderate earthquakes without structural damage but with some nonstructural damage and (3) resist major earthquakes without collapse but with some structural as well as nonstructural damage. Conformance to the current building code recommendations does not constitute any kind of guarantee that significant structural damage would not occur in the event of a maximum magnitude earthquake; however, it is reasonable to expect that a well-designed and well-constructed structure will not collapse or cause loss of life in a major earthquake (SEAOC, 1996). Lurchin!!. Ground lurching is a result of the rolling motion imparted to the ground surface during energy released by an earthquake. Such rolling motion can cause ground cracks to form. The potential for the formation of these cracks is considered greater at contacts between deep alluvium and bedrock. Such an occurrence is possible at the site as in other locations, but the offset or strain is expected to be negligible at the site. Liquefaction. Liquefaction is a phenomenon in which saturated cohesionless soils are subject to a temporary, but essentially total, loss of shear strength because of pore pressure build-up under the reversing cyclic shear stresses associated with earthquakes. Maps prepared by the Association of Bay Area Governments (ABAG, 2001) indicate that the site has a moderate potential for liquefaction. The CPT probes indicate that the soils beneath the site area explored are generally clayey in nature, with thin dense to very dense sand layers below a depth of approximately 25 to 30 feet. Exploratory borings by Lowney along the southwestern parcel encountered 2- to 8-foot-thick sand lenses that were generally medium dense to dense. Based on this information, and the fact that groundwater 6264.3.002.01 April 21, 2004 II ENGEO INCORPORATED was not encountered in the maximum depth of the borings (45 feet) or at the maximum depth of the CPT logs (50 feet below ground surface), it is our opinion that the potential for liquefaction is low. Densification Due to Earthquake Shakin!!. Densification of the sandy soils above and below groundwater levels can result in settlement/densification during an earthquake. Due to the medium dense to dense nature in the granular zones encountered at the site, and the fact that the potential for liquefaction is low, it is our opinion that the potential for earthquake-induced densification is low. Lateral Soreading. Lateral spreading can occur in weaker soils near slopes and adjacent to open channels that are subjected to strong ground shaking during earthquakes. Although the Calabazas Creek borders the western boundary of the northern parcel, the graded slope bank is relatively low, approximately 15 feet high, well-vegetated and inclined at a gradient of2:1 or flatter. A mid-slope access road is also present along the slope bank. Based on these observations and the low potential effects associated with liquefaction, it is our opinion that the hazard of lateral spreading is low at the site. If possible; habitable structures should be situated outside a 3: 1 line of projection from the toe of the Calabazas Creek bank to the top of slope Old Calabazas Creek Channel The naturål Calabazas Creek was realigned around 1978, with a portion of the new channel directed und~rground through a double-box concrete culvert running between Stevens Creek Boulevard to Vallco Parkway along the eastern side of Finch Avenue within a SCVWD easement. Before it was realigned, the creek meandered naturally across the site running from generally south to the north. Figure 2 shows the approximate location of the old creek channel based upon publicly available USGS historical topographic maps ofthe area. The historical topographic maps also showed that the creek channel banks ranged from approximately 15 to 25 feet deep. 6264.3.002.01 April 21, 2004 12 ENGEO INCORPORATED As noted above, PKA (1980) indicated some awareness and involvement with the channel realignment operations. No records could be found at the City of Cupertino regarding the sections of creek, testing or observations services performed by PKA. Existing Fills At least 2 areas of existing fills were observed through CPT and prior exploratory borings. These areas include the former, natural Calabazas Creek alignment and a zone identified by PKA roughly under the existing office building within the upper 2 to 7 feet of two borings, These materials require further assessment to characterize their ability to support foundations. Within the natural creek alignment, removal and replacement of the existing fills could result in a large earthwork volume and potential differential fill thickness subexcavation. Assuming an average channel depth of approximately 15 feet, an average channel width of approximately 100 feet and an average channel length of approximately 1,500 feet, an earthwork volume of approximately 85,000 cubic yards results. It was assumed that the creek banks existed at generally a I: 1 slope gradient. Recommendations that address the existing fill material are provided in subsequent sections of this report. Expansive Soils Soil samples tested by Kaldveer (1980) and Lowney (2000) show the site soils having a PI value ranging /Tom 14 to 22, indicating a moderate to high expansion potential. Although soil samples were not collected as part of the scope of this phase of work, the clayey empirical behavior ofthe soil represented in the CPT logs indicate the presence of potentially expansive soils. 6264.3.002.01 April 21, 2004 13 ENGEO INCORPORATED Expansive soils will shrink and swell as a result of moisture changes. This can cause heaving and cracking of slabs-on-grade, pavements and structures founded on shallow foundations. Building damage due to volume changes associated with expansive soils can be reduced by deepening the foundations to below the zone of moisture fluctuation with deep foundations, or by using mat foundations which are designed to resist the deflections associated with the expansive soÍl. Preliminary recommendations that address the potentially expansive nature of the site soils are provided in subsequent sections of this report. Actual sampling and testing of the site soils to detennine the expansive potential will occur during design-level studies. Conclusions Based on our preliminary exploration, it is our opinion that site development is feasible ITom a geotechnical standpoint. The main identified geotechnical items i~clude the suitability of existing fills within the fonner creek alignment for supporting future improvements, and the potentially expansive site materials. Since the recommendations included in this report are preliminary and are intended for project planning purposes, additional geotechnical study at the site is warranted to address the items above once land planning is more defined. The additional exploration will include subsurface exploration consisting of test borings, test pits, laboratory testing, engineering analyses and geotechnical document preparation. 6264.3.002.01 April 21, 2004 14 ENC3EO INCORPORATED RECOMMENDA nONS The following recommendations are for land planning and preliminary estimating purposes. Final recommendations regarding site grading and foundation construction will be provided after additional site-specific exploration has been undertaken once conceptual land plans are available. Selection of Materials With the exception of construction debris (wood, brick, asphalt, concrete, metal, etc.), trees, organically contaminated materials (soil which contains more than 3 percent organic content by weight), the site soils are suitable for use as engineered fill. Other materials and debris, including trees with their root balls, should be removed from the project site. Demolition and Stripping Site preparation should commence with removal of site vegetation (trees and shrubs), structures and their foundations, asphalt parking and existing underground improvements, Localized areas of additional subexcavation may be needed, such as around tree root balls and foundation footings. No loose or uncontrolled backfilling of depressions resulting from demolition, stripping or additional subexcavation should be permitted. Existing Fills As noted above, existing fills were encountered during the PKA study, as well as within two CPT probes from this study. The existing fills within the PKA study appear relatively minor and isolated, resulting in localized subexcavation if determined to be yielding from future exploration. 6264.3.002.01 April 21, 2004 15 ENGEO INCORPORATED Existing fills within the former Calabazas Creek channel are anticipated to be up to 15 to 25 feet in depth, based upon historical topographic maps and information ftom CPT-I and CPT-2. If this material is deemed unsuitable as foundation materials and result in removal and replacement as engineered fill, a significant earthwork volume is anticipated. PKA noted in their report some level of involvement with the creek realignment; however, no summary of observation reports were available for our review at the City of Cupertino. Additional study is warranted to determine the adequacy of the existing fills within the former channel aligmnent to minimize the amount of subexcavation, if any, needed to support proposed site improvement on shallow foundation systems. If a deeper foundation system is tolerable for structures within the former channel aligmnent, minimal removal and replacement may be suitable. For initial planning purposes, it appears as though a complete existing fill removal and replacement would result in approximately 85,000 cubic yards of subexcavation and backfill as engineered fill. Engineered fills associated with backfill of subexcavation areas should be placed in accordance with the Fill Placement section of this report and under the observation and testing of a representative ftom ENGEO. Loose or Comoressible Surface Soils Once the site is stripped and demolition has occurred, the site should be observed for its suitability to receive engineered fill materials, or as foundation soils, by wheel rolling the site with heavy construction equipment. If unsuitable soil materials are observed, these soils should be subexcavated as necessary to encounter a firm, non-yielding base. The actual depth for reworking should be determined by a qualified ENGEO field representative at the time of grading. 6264.3.002.01 April 21, 2004 16 ENGEO INCORPORATED Fill Placement For land planning and cost estimating purposes, the following compaction control requirements should be anticipated for general fill areas: Test Procedures: ASTM 0-1557. Required Moisture Content: Not less than 3 percentage points above optimum moisture content. Minimum Relative Compaction: Not less than 90 percent. Additional compaction requirements may be required for near-surface building pad foundation soils and retaining wall backfill soils. These additional requirements will be developed during our detailed exploration. Building Code Seismic Information In accordance with the Uniform Building Code (1997), the site is located within Seismic Zone 4. As shown in Figure 16-2 and Table 16-1, this indicates a seismic zone factor (Z) of 0.40. Based on site conditions interpreted by the CPT probes, the soil profile can be classified as SD, stiff soil, as defined in Table 16-1. In reference to Tables 16-Q and 16-R, seismic coefficients, C. of0.44*N. and Cvof 0.64*Nv can be used, while in reference to Tables 16-S and 16-T, near source factors, N. of 1.0 and Nv of 1.2 should be incorporated, based on seismic input ITom the Monte Vista-Shannon fault and the San Andreas fault (peninsula segment) to the southwest of the site. Preliminarv Foundation Alternatives In order to reduce the effects of the potentially expansive soils and/or existing fills, the foundations should be extended to depths where moisture fluctuations are low; this can be accomplished with a 6264.3.002.0 I April 21, 2004 17 ENGEO INCORPORATED deepened foundation system such as drilled piers connected by well-reinforced grade beams with raised or slab-on-grade flooring. Alternatively shallow foundations of relatively rigid mat foundations, such as post-tensioned or conventionally reinforced structural mat, can be sufficiently stiff to move as rigid units with minimum differential movements. Shallow footings may also be feasible. Provided the existing fill conditions are adequately addressed, the following preliminary information is suitable for the proposed development. Li!!ht Buildinl! Loads. It is our opinion that structural mat foundations (post-tensioned or conventionally-reinforced) or deepened perimeter footings would be feasible and likely most cost effective to support one- to three-story residential structures. We anticipate that structural mats constructed on swelling soils will move differentially; therefore, structural mats may require stiffening to reduce differential movements due to swelling/shrinkage to a value compatible with the type of structure that will be constructed. A minimum mat thickness of 10 to 12 inches would appear feasible for the existing conditions encountered, with the perimeter thickened by at least 2 inches. Mat foundations should be designed to impose a maximum allowable bearing pressure of 1,200 psf for dead-plus-live loads. This value may be increased by one-third when considering total loads including wind or seismic. For a footing foundation system, we anticipate a minimum footing embedment of24 inches below lowest adjacent soil subgrade elevation. An allowable bearing value. of 2,000 pounds per square foot (pst) with a sliding coefficient of friction of 0.30 can also be used for preliminary foundation design purposes. The soil bearing value may be increased by 1/3 for total loads including wind and seismic. A minimum concrete floor slab thickness of 5 inches reinforced with No. 4 bars spaced 18 inches on-center each way over 5 inches of clean crushed rock should also be anticipated. To inhibit the 6264.3.002.01 April 21, 2004 18 ENGEO INCORPORATED transmission of moisture vapor, the concrete slab should be placed directly on a minimum of21ayers of water vapor retarder, each layer having a minimum thickness of 10 mils. To improve the performance of slab-on-grade floors, replacement of expansive subgrade soils with non-expansive soil should be expected. Underground and ModeratelHeavv Building Loads. Buildings more than three stories in height and/or with underground parking, if applicable, will require additional subsurface information to determine the suitability of shallow foundation systems or if drilled piers or driven piles would be better suited to support the structural loads on the foundation soils. Further discussion about proposed building loads and layouts and additional exploration should occur prior to preparation of site-specific foundation designs for the development. Corrosive Soils An evaluation of possible corrosion impacts to site improvements was not conducted as a part of our study. The primary purpose for sulfate testing is to determine if sulfate-resistant concrete is needed for foundation construction, based on the criteria presented in Table 19-A-4 of the 1997 Uniform Building Code (UBe). We recommend that sulfate testing be performed in the future prior to utility installation and foundation construction and may be performed during our detailed exploration. Retaining Walls Unrestrained drained retaining walls, up to 10 foot maximum, constructed on level ground may be designed for active lateral equivalent fluid pressures determined as follows: Backfill Slope Condition Active Pressure (horizontal:vertical) (pounds per cubic foot) Level 50 4:1 55 3:1 60 2:1 70 6264.3.002.01 April 21, 2004 19 ENGEO INCORPORATED If basement walls are anticipated, an at-rest pressure of 85 pcf would appear suitable for the conditions encountered. Passive pressures acting on foundations may be assumed as 250 pounds per cubic foot (pct) provided that the area in tront of the retaining wall is level for a distance of at least 10 feet or three times the depth of foundation, whichever is greater. The upper one foot of soil should be excluded trom passive pressure computations unless it is confined by pavement or concrete slab. The triction factor for sliding resistance may be assumed as 0.30. It is recommended that retaining wall footings be designed using an allowable bearing pressure of 2,000 pounds per square foot (pst) in native firm materials or engineered fill. These values should be confirmed during future design-level geotechnical studies. Appropriate safety factors against overturning and sliding should be incorporated into the design calculations. All retaining walls should be provided with drainage facilities to prevent the build-up of hydrostatic pressures behind the walls. Wall drainage should consist of a 4-inch-diameter perforated pipe embedded in tree-draining gravel surrounded by synthetic filter fabric or Class 2 permeable material (Guide Contract Specifications, Section 2.05B). The width of the drain blanket should be at least 12 inches and the drain blanket should extend to about one foot below the finished grades. As an alternative, prefabricated synthetic wall drain panels can be used. The upper one foot of wall backfill should consist of compacted site soil if exposed to surface drainage. Drainage should be collected by pipes and directed to an outlet approved by the Civil Engineer. Synthetic filter fabric should meet the minimum requirement as listed in the Guide Contract Specifications. All backfill should be placed as engineered fill using light equipment to minimize possible overstressing of walls. 6264.3.002.01 April 21, 2004 20 ENGEO INCORPORATED Drainage Building pads must be positively graded at all times to provide for rapid removal of surface water runoff ITom the foundation systems, and to prevent ponding of water under floors or seepage toward the foundation systems at any time during or after construction. Ponded water will cause undesirable soil swell and loss of strength. As a minimum requirement, finished grades should have slopes of at least 3 percent within 5 feet, where feasible, ITom the exterior walls and at right angles to allow surface water to drain positively away ITom the structures. For paved areas, the slope gradient can be reduced to 2 percent. All surface water should be collected and discharged into outlets approved by the Civil Engineer. Landscape mounds must not interfere with this requirement. In addition, each building should drain individually by providing positive drainage or sufficient area drains around the buildings to remove excessive surface water. All roof storm water should be collected and directed to downspouts. Storm water ITom roof downspouts should not be allowed to discharge directly onto the ground surface. Rather, storm water ITom roof downspouts should be directed to a solid pipe that discharges into the street or to an outlet approved by the Civil Engineer. Unless an engineered system is designed, the site soils encountered are not expected to have adequate permeability values to handle storm water infiltration. If, at any time, adequate drainage away ITom the foundation cannot be achieved, then additional measures to hinder saturation of foundation soils must be provided. This may be accomplished by installing perimeter subdrain systems. 6264.3.002.01 April 21, 2004 21 ENGEO INCORPORATED LIMITATIONS AND UNIFORMITY OF CONDITIONS This preliminary report is issued with the understanding that it is the responsibility of the owner to transmit the information and recommendations of this report to developers, contractors, buyers, architects, engineers, and designers for the project so that the necessary steps can be taken by the contractors and subcontractors to carry out such recommendations in the field. The conclusions and recommendations contained in this report are solely professional opinions. The professional staff of ENGEO Incorporated strives to perform its services in a proper and professional manner with reasonable care and competence but is not infallible. There are risks of earth movement and property damages inherent in land development. We are unable to eliminate all risks or provide insurance; therefore, we are unable to guarantee or warrant the results of our work. This preliminary report is based upon field and other conditions discovered at the time of preparation of ENGEO's work. This document must not be subject to unauthorized reuse, that is, reuse without written authorization of ENGEO. Such authorization is essential because it requires ENGEO to evaluate the document's applicability given new circumstances, not the least of which is passage of time. Actual field or other conditions will necessitate clarifications, adjustments, modifications or other changes to ENGEO's work. Therefore, ENGEO must be engaged to prepare the necessary clarifications, adjustments, modifications or other changes before construction activities commence or further activity proceeds. If ENGEO's scope of services does not include on-site construction observation, or if other persons or entities are retained to provide such services, ENGEO cannot be held responsible for any or all claims, including, but not limited to claims arising ITom or resulting ITom the performance of such services by other persons or entities, and any or all claims arising ITom or resuIting from clarifications, adjustments, modifications, discrepancies or other changes necessary to reflect changed field or other conditions. 6264.3.002.0 I April 21, 2004 22 ENGEO INCORPORATED SELECTED REFERENCES Association of Bay Area Governments, 2001, Liquefaction Hazard Map for Cupertino, Scenario: 1906 San Francisco Earthquake. Bortugno, E. J. et aI, 1991, Map Showing Recency of Faulting, San Francisco-San Jose Quadrangle USGS Map Sheet 5A. Brabb, E.E., Graymore, R.W., and Jones, DL, 1998, Geology of Palo Alto 30 x 60 minute quadrangle, California: a digital database: U.S. Geological Survey, Open-File Report OF-98-348, scale I: I 00000. ENGEO Inc., Modified Environmental Site Assessment Update, Finch A venue Site, Cupertino, California, April 20, 2004, Project No. 6264.3.001.01. Hart, E.W., 1992, Fault-Rupture Hazard Zones in California, California Division of Mines and Geology Special Publication 42, revised. International Conference of Building Officials, 1997, Uniform Building Code, International Conference of Building Officials, 1998, Maps of Known Active Fault Near-Source Zones in California and Adjacent Portions of Nevada. Jennings, C.W., 1977, Geologic Map of California, California Division of Mines and Geology (Now the California Geological Survey), Scale: 1:750,000. Lowney Associates, Phase I Environmental Site Assessment and Soil Quality Evaluation, Finch Avenue Parcel, Cupertino, California; December 1, 2000; Project No. 1047-28A. Lowney Associates, Geotechnical Investigation, Compaq Mixed-Use Site, Finch Avenue, Cupertino, California; October 31, 2000; Project No. 1047-28. Peter Kaldveer and Associates, Inc., Foundation Investigation for Tandem Computers Facility Phase III, ValIco Park, Cupertino, California; June II, 1980. (Viewed by ENGEO on microfiche at the City of Cupertino Building Department) Robertson, P. K. and R. G. Campanella, 1988, Guidelines for Geotechnical Design Using CPT and CPTU Data. SEAOC, 1996, Recommended Lateral Force Requirements and Tentative Commentary. 6264.3.002.01 April 21, 2004 ENGEO INCORPORATED SELECTED REFERENCES (Continued) SECOR International Inc., Phase I Site Assessment of Building CAC04, Located at 19191 Vallco Parkway, Cupertino, California; February 12,2004; Project No. 06HP.000005.02.0001. State of California, Division of Mines and Geology (CDMG), 1974, Potential Seismic Hazards in Santa Clara County, California, Special Report 107, Plates I through 4. State of California, Division of Mines and Geology (CDMG), 1982, Earthquake Fault Hazard Zones Map, Cupertino Quadrangle (previously named Special Studies Zones Map). State of California, Division of Mines and Geology (CDMG), 2002, Seismic Hazard Zones, Preliminary Revised Map, Cupertino Quadrangle. 6264.3.002.0 I April 21, 2004 Figure I Figure 2 Figure 3 Figure 4 Figure 5 6264.3.002.01 April 21, 2004 LIST OF FIGURES Site Vicinity Map Site Plan Site Geology Map Seismic Hazard Zones Map Regional Faulting and Seismicity ENGEO INCORPORATED ~ ..~ g r--..¿' , '... \\ " ! , \_'};~" \ ¡ " , < o ~ '~ · , ~ ~ ~ II!) ¡, · i " o ~ I I 1 r ! i ~-~ '. ..Á - " .~ ;; v~ N o c o MJlJJS 4 K1t.OMI!T'EIt'Õ 8 , ~ < o o · BAS£ MAC SOURC,£; ThOMAS ept.)f;.;£,F6 ~ ENGEO ~ INCORPOQAfED iiXiiiiiiWi.~vìœm;Uiì-¡'T- OPIÇt<At r CH¡:;rr PP!«!;}' 1H ::(~_:W srrE VICINITY MAP FINCH AVENUE Sfrn CUPERTINO. CALIFORNIA PRom,' so, 6264.3.()()2,OI OAT.. APRIL 2004 YII;CP'p' ~!1 1 OIU.-N ¡:y. F(.. rHIDRD RY. 1M ",.,""'''': .' :,,.'." I z ~ '" g ~o; ~~8 o-ô o<t;!- .. ~. n\tJ.N\1J N o ! " i / / . t"';í I t: o ';JAIl ê · , .I . ¡ ¡ . 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I .'.-"y'.'.,.--' ;..; , ", en <: ~~ l" h <.~ , î , :. z · o u z · " · ^ ^ · ~ , o '" , ~ ~ · o " " · ~, > o · o · , ~ I > , ¡ · · ~ <i , ~ o ~ EXPLANA nON · r_ , o , QTsc SANTA (lARA FORMATION (LOWER PLF.ISTOCEIIE AND UPPER 1'U00000E) Tm MONTEREY FORMAI10N (MIDtJtE MIOCENE) Tblc CQHOLOMeRA11! fg OItImNSTOHE Ie CllEltT fi LIMESTONE fsr SHEARED ROCK (MELANGE) db DIABASE AND GABBRO (JURRASIC¡ ~ of A1111FlClAL FUJ.1HlSTORJC) Qhsc STREAM CHANNEL DEPOSITS (HOLOCENE) Qhaf illUVW.. FAN AND A.tMAlDBl'OSITS (\IOLOCENE) QIs IMiDSIIDE DEPOSITS (PlEISTOCENE ANÐIOR HOLOCENE) ~ <> g .' , '.~ i. Qpaf ALLUVIAl fAN AND ftuVW.DBI'OSrrs (I'LEtSTOCENE) , o MILIi'I ~ o JOI.DMET'ßRS 11 N ;., " 2 oj g;.:iL '>4:",:' s:;uP~~C á'i?Ai'it! _ AL !;U2 ENGEO 'NCORPOR^~EO ~~~-fifti.~?0~!E~L~7i--- SITE GEOLOGY MAP FINCH AVENUE SITE CUPER11NO, CALIFORNl,\ PBo"cr '0,' 6264.3.002.01 om, APRIL 2004 ,I¡,L'IŒ \:() 3 DIUIS 8Y, PC tHEaRD II'{" JM '''''. .. '.,_,~[ ""-,,<T.:: :... ~,j_.::" .",,', "":..~,,,. ~ ~ ì ~ I ¡ 0 0 ¡ , , 0 0 l> ~ ~ i '" · 8 ~ li · · ~ · · w ~ " 2 e · 0 § ~ ~ ~ w · e · > 'JÎ~"-' :..¡ I ¡ ----: I i '( _'~-"i 'I.. ._~.2'______" " >' ~ l · · , 7 ~ Ó ~ '!i ~ 0 % · , 0 ~ ~ ~ ~ ¡ ì A · " n · ~ N ~ 0 0 F88T 2000 " ~ 0 """""-S !;; I;OO'LAÞ!ATIºN C) AREAS WHERE HISTORIC OCCCRRENCE OF LIQUEFACTION. OR LOCAL GEOLOGICAL. GEOTECHNICAL AND GROUNDWATER CONDI110NS INDICATE A POTEN'nAL FOR PERMANENT GROUND DlSl1t ACE.\t1E!\TS SUCH THAT MITIGAT10N AS DEf;INED ¡;...¡ PUBLIC RESOURCES CODE SECTrON 26-)}1C, WOULD BE REQUIRE'D tOO<> o 2 () BASE MAP SOURct.. SIAIl OF CAUFORINlA. S£.!SJ,tlC HAZARD 20Nt:S., CUPl.'/?TiNO GUADRA,I¡/(~'f..£ (2D02) ENGEO INCORPORATED ~~~:~.~971, C¡>](;.';"'I. f':.I;f« ¡r~!NEt '" tùL)R SEISMIC HAZARD ZONES MAP FINCH A VENUE SITE CUPERTINO. CALIFORNIA i"k¡j.íKCT :-W.' 6264.3.002,01 ÐA rL APRTI_ 2004 OR.''''i Wt- PC CHKrKf.D Bï· JM F!GUR) S'1 4 .""., '\~,\ ,~ ''<-~ <'\ ~ , ~ ",\i'.. ~ ~.. '~~ ~:".\ \ c>' "1' .'-fJ. "'~ ~ \ .~'i; 1 f1':Æ"JH~;' 18'H I '&:." / '\. ~ \~ ~(":I;f' ,.A "'~u .........' )~ -:/l£t'li: .. .. >;f!l0~ . ~. " "'" \. , - , ~ ~'",.,,'¡:1 I<'~~I , · , · t .. ~ · " ~'<r,·'·' I · o 2 :; o o , · c > · · ~ < , > ~ , , z · ~ i ;, , L~ N 0 Mll.ES 20 . " 0 KIf..OMIITIJIt3 40 , · § , ! " j; · · · î 1 EXPLANATlQN t · o 2 la~GIO'\,\L ¡'HUS (:u\~WEfŒ[) Slt;NIi"IC,\l'( POI ~:Nll.\l. SEIB\I (, SO!)I{(ES' ~ ,:{.ASS .1 __ rus,"< H ¡f (J'l t'llt.' ('H.~?11(R !ð -CLA:>'Ò<{; '" ! i .' , _ tH.I;>JI! fHf',I;ST nl'LT ~ y¡,.R£;' c ~ ... ,l'I'J:O\!\ulb I.O[),I!Ü:\ OF EI'WI<:NHn SflOW!;'I.'G YF"R Of !W(,\·f:r.E'..:Cr -\'i1J \I,\r,Nln~l\~ · !: o 'BAS[D ON U<::GS' ()PEN =-iit % --;·06 ENGEO INCO~POQ"lE() iX(~;iª~r:. ~£~ÿ!Cj<~.~çg~ )!I (;INA.~ n~( f'"~,WW .11 (tH.{H REGIONAL PAUL TlNG AND SEISMICITY FINCH ^ VENUE SITE CUPERTINO. CALIFORNIA 'q-,~"" " _. ..~ '.<-"-,1 I \ \ '>.Ad'~!lt'H" \ß9:i . ",",~, ~<;¡?i . 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',.-.... ,'.'F ',~ APPENDIX A ENGEO INCORPORATED Cone Penetrometer Test Logs 6264.3.002.01 April 21, 2004 ENGEO INCORPORATED SIMPLIFIED SOIL BEHAVIOR TYPE CLASSIFICATION FOR STANDARD ELECTRONIC CONE PENETROMETER 1000 1 e;::- II J!J ~ () a 100 c5 Z It: <I: w aI W 10 Z 0 0 1 o 2 4 6 FRICTION RATIO, Rf (%) 8 ZONE Qc/N' Su Factor (Nk)2 SOIL BEHAVIOR TYPE' 1 2 3 4 S 6 7 8 9 10 11 12 2 ) Sensitive Fine Grained 1 for Zones 1 to 6 Organic Material 1 10 for Qc <= 9 tsf CLAY 1.5 12 for Qc = 9 to 12 tsf Silty CLAY to CLAY 2 1S for Qc > 12 tsf Clayey SILT to Silty CLAY 2.S Sandy SILT to Clayey SILT 3 Silty SAND to Sandy SILT 4 SAND to Silty SAND S SAND 6 Gravelly SAND to SAND 1 15 Very Stiff Fine Grained (*) 2 SAND to Clayey SAND (*) (*) Overconsolidated or Cemented Qc = Tip Bearing Fs = Sleeve Friction Rf = Fs/Qc*100 = Friction Ratio References: 'Robertson, 1986, Olsen, 1988 2Bonaparte & Mitchell, 1979 (young bay mud Qc <= 9) 2Estimated from local experience (fine grained soils Qc > 9) Note: Testing performed in accordance with ASTM D3441 .fohn Sarmiento & Associates Cone Penetrometer Testing Services II II MIUI~ml"lIøIUI I Uøn'lIlIm'..1 mllllll' 11111 III II *~';: IJ.S A^ II UII III , 1111 II 1111 III II . .., CN'VS - .~ ~l" QN'VS Al'IS , , " IlIIlg ..., 'E '" " '" " <:) Jj lìIS - , , , n'l , , 111111111111111 1111111 " ¡;¡ A'V':) - '11.1'IIIIIIIUllllllnmIIMIIIIIIIIIIIMIIII UIUfII.IIOI.lql' IIIIIU I lid 111111111" '" , IIUI I1UIIII . -.:c: .. , ·ä 3^I.LI6N3S ~ ., 0 10 0 10 0 " 0 10 0 111 0 ~ ~ ~ ~ ru ru '" '" ç ç 10 " ... 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'" " 20 " r" " OZ 0 c U H ·n W f- 0 It) 0 '" 0 It) 0 It) 0 It) 0 E , "', " " N N '" '" " " It) L 0 UO (:¡aa .J HJ.d30 " II ocr: f- 0.. .Jo.. , , mlll,mlMIIIIIII *,:: ..fI.1S AA 11111111 11111111 IIIMIII , '" ON'Ø'S - '" ~ ... U ONVS Al.'1S .~ ~ <> 1'15 - , , Q '" , ftlllllllll 1IIIMUlUI , " "' '" .. AY-'::> 11111 IIIUIIIdI.,IIIIIIIUIMIIIIIUIUltll'III.IIIIII.mlll.luIIUthUMn.AIIIIII 11111 IIlIlInlllllllllUllllntnlll1 , " . Ilnlllllllllllllll11l utll "« '" , , ..§ 3AIlISN3S ~ ., 0 '" 0 '" 0 '" 0 '" 0 '" a S ~ ~ ~ N N '" '" " " '" <:: ~ == .<> 0 ~ . ~ '" ~ '" . . " ~ .~ u w 0 W ~ ~. -- ·M . I- ·tî If) a " " r}j N " " ,,~ J:>., ~ . If) > u .. :J 0 · == <:: UJ ~ " .::: ð · ~ " c a 0 a '" a '" 0 '" 0 '" a '" a 0 ~ ~ N N '" '" " " '" u c " · 0 a 0 '" .µ OJ 0 I 01 ~^v' c " OJ Q 0 I 0 .3 " " f- I · 0. " H .µ U 0 0 · I '" ~ 0. u 0 c OW 0 Z f- N 0 " 0 '" a '" 0 '" a '" 0 '" a " f- a ~ ~ N N '" '" " " '" (!) 0. U 0 0 w N · 0 rl a D 0 ~ IT · Z a 0 '" 0 '" 0 '" 0 '" 0 '" a ~ ~ N N '" '" " " "' " D> C · ~ U to tD L I · 0 .9 '" (!) w !:! -- f- cr .µ H ~ 0 · (/) 0 · " a '" 0 '" 0 '" a '" 0 '" 0 ~ W u OJ ~ ~ N N '" '" " " "' ::J 0 "' Z 0 0 0 W c a " > 'M '" " " « .µ '" " " I œtD · .µ U 0.'" ~ a ro Z OtD a H u U N U LL CJ œ i .µ ,:.: 0 ro 0 Z 0 c U H .~ W f- a '" a '" 0 '" a "' 0 '" a E -, " -, ~ ~ N N '" '" " " '" L 0 UO naa¡) H.Ld30 · cr ocr I- 0. -'0. PROJECT: FINCH AVENUE SITE CPT NO.: CPT-I Page 1 of Z LOCATION: Cupertino CA DATE : 04'02-2004 PROJ. NO.: 6264.3.002.01(EGO-61) Groundwater not encountered Terminated at 50.0 feet DEPTH Qe Fa Rt SPT SPT TotHzStr PHI SU SOIL BEHAVIOR DENSITY RANGE (feet) (tsf) (tat) (X) (N) (N') (ht) (dog. ) (kat) TYPE (pet) 0.50 43.89 1. 756 4.0 22 35 0.06 __OM 5.85 Clayey SILT to Silty CLAY 130'140 1.00 14.25 0.992 7.0 14 23 0.12 ---- 1.89 CLAY 120-130 1.50 12.51 0.644 5.1 13 20 0.19 .-.- 1.66 " " 2.00 14.25 0.725 5. I 14 23 0.25 .-.- 1.88 " " 2.50 11.36 0.673 5.9 11 18 0.31 .-.- 1.87 " " , ·3.00 23.00 1. 083 4.7 23 37 0.38 ---- 3.04 " 130-140 3.50 12.94 0.603 4.7 13 21 0.44 ---- 1.70 " 120-130 4.00 15.43 0.874 5.7 15 25 0.50 ---- 2.02 " " 4.50 11.60 0.867 7.5 12 19 0.57 -... 1.89 " " 5.00 7.92 0.531 6.7 8 13 0.63 ---- 1.52 " 110-120 5.50 9.76 0.643 6.6 10 16 0.69 ---- 1.57 " 120·130 6.00 11.06 0.835 7.6 II 18 0.75 ---- 1.78 " " 6.50 12.56 0.851 6.8 13 20 0.81 __e. 1.62 " " 7.00 14.48 0.970 6.7 14 22 0.88 -.-- 1.87 " " 7.50 14.82 0.878 5.9 15 22 0.94 ---- 1.91 " " 8.00 16.34 0.902 5.5 16 23 1.00 -.-- 2.11 " " 8.50 12.27 0.790 6.4 12 17 1.06 ---- 1.57 " " 9.00 11.70 0.510 4.4 12 16 1.12 .-.- 1.86 " " 9.50 5.90 0.460 7.8 6 8 1.18 .-.- 1.06 " 110·120 10.00 6.20 0.571 9.2 6 8 1.24 ._-- 1.12 Organic Material " 10.50 9.30 0.667 7.2 9 12 1.30 ---- 1.44 CLAY 120-130 11.00 7.11 0.529 7.4 7 9 1.36 ---- 1.29 " 110-120 11.50 8.83 0.400 4.5 9 II 1.42 ---- 1.62 " " 12.00 12.59 0.612 4.9 13 15 1.48 ---- 1.58 " 120·130 12.50 13.26 0.683 5.1 13 IS 1.54 ---- 1.67 " " 13.00 10.88 0.479 4.4 II 12 1.60 ---- 1.68 " " 13.50 9.80 0.419 4.3 10 11 1.66 ---- 1.50 " 110-120 14.00 10.09 0.486 4.8 10 11 1.72 ---- 1.54 " " 14.50 8.91 0.381 4.3 9 9 1.78 ---- 1.60 " " 15.00 9.60 0.569 5.9 10 10 1.84 ---- 1.45 " 120-130 15.50 14,09 0.729 5.2 14 14 1.90 ---- 1.75 " " 16.00 105.34 3.031 2.9 42 43 1.97 __e. 13.91 Sandy SILT to Clayey SILT 130-140 16.50 68.43 1.868 2.7 27 27 2.03 ---- 8.99 " " 17.00 17.91 1.320 7.4 18 18 2.10 ---- 2.25 CLAY " 17.50 96.31 2.345 2.4 32 32 2.17 38 ---- Silty SAND to Sandy SILT " 18.00 53.52 3.669 6.9 54 53 2.24 ---. 6.99 CLAY " 18.50 40.74 1.916 4.7 27 27 2.30 .--- 5.28 Sil ty CLAY to CLAY " 19.00 32.94 1.897 5.8 33 33 2.37 .... 4.23 CLAY " 19.50 32.63 1.625 5.0 33 32 2.44 --.- 4.19 " " 20.00 29.69 1.560 5.3 30 29 2.51 -.-. 3.79 " " 20.50 33.44 1.571 4.7 22 22 2.57 ---- 4.29 Silty CLAY to CLAY " 21.00 41.35 1.909 4.6 28 26 2.64 ---- 5.34 " " 21.50 45.71 2.243 4.9 30 28 2.71 __e. 5.91 " " 22.00 43.08 1. 980 4.6 29 26 2.78 ---- 5.56 " " 22.50 42.77 1.964 4.6 29 25 2.84 .-.. 5.51 " " 23.00 45.00 2.275 5.1 45 39 2.91 ---- 5.81 CLAY " 23.50 132.11 7.618 5.8 132 III 2.98 ---- 17.42 Very Stiff Fine Grained * >140 24.00 262.82 10.729 4.1 131 108 3.05 42 ...- SAND to Clayey SAND * " 24.50 206.03 tI.926 5.6 206 168 3.12 ---- 27.26 Very Stiff fine Grained * " 25.00 221.65 8.532 3.8 111 69 3.19 41 .~~. SAND to Clayey SAND * " 25.50 426.36 17.500 4.1 213 170 3.26 45 ---- " " 26.00 305.21 15.693 5.1 305 241 3.33 ---- 40.47 Very Stiff Fine Grained * " 26.50 322.04 11.262 3.5 161 126 3.40 43 ---- SAND to Clayey SAND * " 27.00 256.53 9.969 3.9 126 99 3.47 42 ---- " " 27.50 367.45 11.704 3.0 ·194 146 3.54 44 ---- " " 28.00 273.16 8.928 3.3 137 103 3.61 42 __M_ " " 28.50 313.62 9.264 3.0 157 118 3.68 43 ---- " " 29.00 521. 71 10.655 2.0 261 193 3.75 46 ---- " 130·140 29.50 351.85 8.638 2.5 176 129 3.82 43 ---- " " 30.00 286.85 9.662 3.4 143 104 3.89 42 -.-- " >140 30.50 39.73 3.900 9.8 40 29 3.95 ---- 5,03 CLAY 130·140 31.00 106.86 2.990 2.8 43 30 4.02 -... 13.98 Sandy SILT to Clayey SILT " 31.50 16.38 0.848 5.2 16 12 4.09 ---- 1.91 CLAY 120-130 32.00 19.59 0.960 4.9 20 14 4.15 .-.- 2.34 " 130·140 32.50 26.45 1. 006 3.8 18 12 4.22 -... 3.24 Silty CLAY to CLAY " John Sarmiento & Associates Cone Penetration Testing Service PROJECT: FINCH AVENUE SITE CPT NO.: CPT-' Page 2 of 2 LOCATION: cupertino CA DATE : 04-02-2004 PROJ. NO.: 6264.3.002.01(EGO·61) Groundwater not encountered Terminated at 50.0 feet DEPTH De Fs Rt SPT SPT TotHzStr PHI SU SOt L BEHAVIOR DENSITY RANGE (feet) (tsO (tst) (X) (N) (Nt) (ksO (deg.) (ksf) TYPE (pet) 33.00 24.11 1. 065 4.4 16 11 4.29 2.93 " " 33.50 42.67 2.109 4.9 28 19 4.35 5.40 " " 34.00 29.59 1.491 5.0 30 20 4.42 3.65 CLAY " 34.50 39.73 3.071 7.7 40 27 4.49 5.00 " " 35.00 102.50 4.331 4.2 103 68 4.56 13.36 Very Stiff Fine Grained * " 35,50 99.25 7.170 7.2 99 65 4.62 12.93 " >140 36.00 282.29 6.373 2.3 71 46 4.69 42 SAND to Silty SAND 130·140 36.50 283.10 9.416 3.3 142 92 4.76 41 SAND to Clayey SAND * >140 37.00 332.59 9.096 2.7 166 107 4.83 42 " " 37.50 349.63 8.860 2.5 175 111 4.90 43 " 130-140 38.00 375.38 9.124 2.4 188 118 4.97 43 " " 38.50 381.37 10.630 2.8 191 119 5.04 43 " >140 39.00 385.63 9.419 2.4 193 119 5.11 43 " 130-140 39.50 330.56 9.127 2.8 165 102 5.18 42 " >140 40.00 225.00 5.953 2.6 75 46 5.25 40 Sil ty SAND to Sandy SILT 130-140 40.50 167.00 4.832 2.9 56 34 5.31 38 " " 41.00 319.51 9.586 3.0 160 96 5.38 42 SAND to clayey SAND * >140 41. 50 451. 74 8.795 1.9 90 54 5.45 44 SAND 130·140 42.00 281.08 11. 082 3.9 141 83 5.52 41 SAND to Clayey SAND * >140 42.50 366.06 9.913 2.7 183 108 5.59 42 " " 43.00 459.55 15.078 3.3 230 134 5.66 44 " " 43.50 233.72 10.277 4.4 234 135 5.73 30.78 Very Stiff Fine Grained . " 44.00 253.98 9.560 3.8 127 73 5.80 40 SAND to Clayey SAND . " 44.50 273.57 10.194 3.7 137 78 5.87 41 " " 45.00 205.94 10.653 5.2 206 116 5.94 27.06 Very Stiff Fine Grained· " 45.50 303.29 12.500 4.1 152 85 6.01 41 SAND to·Clayey-SAND . " 46.00 230.27 9.659 4.2 230 128 6.08 30.30 Very Stiff Fine Grained· " 46.50 213.95 8.765 4.1 107 59 6.15 39 SAND to Clayey SAND . " 47.00 115.58 5.999 5.2 116 64 6.22 15.00 Very Stiff Fine Grained * " 47.50 39.83 1.615 4.1 20 11 6.28 4.89 Clayey SILT to Silty CLAY 130-140 48.00 32.63 0.877 2.7 13 7 6.35 3.93 Sandy SILT to Clayey SILT " 48.50 43.99 1.608 3.7 22 12 6.42 5.44 Clayey S(LT to Silty CLAY " 49.00 59.71 3.709 6.2 60 32 6.49 7.53 Very Stiff Fine Grained * " 49.50 19.19 0.800 4.2 13 7 6.55 2.12 Silty CLAY to CLAY 120-130 50.00 21.38 0.810 3.8 - 14 8 6.61 2.41 " " DEPTH = Sampling interval (2 inches) Qc = Tip bearing resistance TotStr = Total Stress using est. density·· Fs = Sleeve friction resistance Phi = Soil friction angle· Rt = Tip/Sleeve ratio su = Undrained Soil Strength· (Nk=10 for Qc<9 tst) SPT = Equivalent Standard Penetration Test* (Nk=12 for Qc=9 to 12 tsf) (Nk=15 for Qc>12 tst) References: * Robertson and Campanella, 1968 .. Olsen, 1989 *** Durgunoglu & Mitchell, 1975 John Sarmiento & Associates Cone Penetration Testing Service PROJECT: FINCH AVENUE SITE CPT NO.: CPT-2 Page 1 of 2 lOCATrON: Cupertino CA DATE : 04-02'2004 PROJ. NO.: 6264.3.002.01(EGO-61) Groundwater not encountered Terminated at 39.5 feet DEPTH Dc Fs Rf SPT SPT TotHzStr PH! SU SO! L BEHAVIOR DENSITY RANGE (feet) etsf) (tsf) (X) (N) eN') (ksf) (deg.) (ksf) TYPE (pef) 0.50 110.35 2.977 2.7 37 59 0.06 41 .... Silty SAND to Sandy SilT 130-140 1.00 86.91 3.189 3.7 35 56 0.13 ..-. 11.58 Sandy SILT to Clayey SILT " 1.50 58,21 3.548 6.1 58 93 0.19 .... 7.75 Very Stiff Fine Grained * " 2.00 53.95 2.803 5.2 54 86 0.26 ---- 7.18 CLAY " 2.50 62.57 3.982 6.4 63 100 0.33 -... 8.32 Very Stiff Fine Grained * " 3.00 47.26 3.549 7.5 47 76 0.40 ---- 6.27 CLAY " 3.50 4B.88 3.490 7.1 49 78 0.46 .--- 6.49 " " 4.00 42.49 3.305 7.8 42 68 0.53 ...- 5.63 " " 4.50 34.79 2.475 7.1 35 56 0.60 ---- 4.60 " " 5.00 38.23 2.461 6.4 38 61 0.67 ---- 5.05 " " 5..50 32.96 2.322 7.0 33 53 0.73 ---- 4.35 " " 6.1JO 51.62 3.918 7.6 52 83 0.80 ...- 6.83 " " 6.51) 54.46 4.453 8.2 54 85 0.87 ---- 7.20 " " 7.1J0 55.78 4.102 7.4 56 83 0.94 ---- 7.37 " " 7.50 40.36 3.364 8.3 40 57 1.00 __Ow 5.31 " " 8.00 24.44 1.718 7.0 24 34 1.07 .... 3.19 " " 8.50 28.09 1. 943 6.9 2B 38 1.14 .--. 3.67 " " 9.00 24.14 1.394 5.8 24 32 1.21 ..0. 3.14 " " 9.50 20.28 1.832 9.0 20 26 1.27 --.. 2.62 " " 10.00 28.60 2.296 8.0 29 35 1.34 ---- 3.72 " " 10.50 3B.23 2.550 6.7 3B 46 1.41 ---- 5.00 " " 11.00 23.02 1.791 7.8 23 27 1.48 .... 2.97 " " 11.50 22.21 1.914 8.6 22 25 1.54 ---- 2.86 " " 12.00 31.84 2.212 6.9 32 36 1.61 --.. 4.14 " " 12.50 25.45 1. 593 6.3 25 28 1.68 ---- 3.28 " " 13.00 24.75 2.150 8.7 25 26 1.75 ---- 3.18 " " 13.50 179.61 9.506 5.3 1BO 1B9 1.81 ---- 23.83 Very St i ff Fine Grained * >140 14.00 190.87 9.389 4.9 191 197 1.B8 -..- 25.32 " " 14.50 201.21 B.910 4.4 201 205 1.95 ---- 26.70 " " 15.00 197.56 9.260 4.7 19B 19B 2.02 __Ow 26.21 " " 15.50 196.04 10.819 5.5 196 196 2.09 -.-- 26.00 " " 16.00 262.16 11.513 4.4 262 261 2.16 ---- 34.81 " " 16.50 213.08 9.648 4.5 213 212 2.23 -._- 28.26 " " 17.00 137.83 5.562 4.0 138 137 2.30 ---- 18.22 " " 17.50 45.43 2.759 6.1 45 45 2.37 ---- 5.90 CLAY 130·140 18.00 48.68 2.514 5.2 49 48 2.44 ---- 6.33 " " 18.50 48.68 2.559 5.3 49 48 2.51 ---- 6.32 " " 19.00 50.40 2.612 5.2 50 49 2.57 ---- 6.55 " " 19.50 43.30 2.292 5.3 43 41 2.64 ---- 5.60 " " 20.00 39.15 2.022 5.2 39 36 2.71 -.-- 5.04 " " 20.50 32.15 1. 727 5.4 32 29 2.78 .--- 4.10 " " 21.00 30.12 1.384 4.6 20 18 2.84 .--- 3.83 Silty CLAY to CLAY " 21.50 28.50 1.452 5.1 28 25 2.91 ---- 3.61 CLAY " 22.00 25.76 1. 239 4.8 26 22 2.98 ---- 3.24 " " 22.50 20.49 1.023 5.0 20 17 3.05 ---- 2.53 " " 23.00 25.35 1. 240 4.9 25 21 3.11 ---- 3.17 " " 23.50 52.84 2.584 4.9 35 28 3.18 ---- 6.83 Silty CLAY to CLAY " 24.00 43.81 2.117 4.8 29 23 3.25 ---- 5.62 " " 24.50 40.26 2.058 5.1 40 32 3.32 ---- 5.15 CLAY " 25.00 41.38 2.282 5.5 41 32 3.38 .-.- 5.29 " " 25.50 40.16 2.421 6.0 40 31 3.45 ---- 5.12 " " 26.00 37.22 1. 965 5.3 37 29 3.52 ---- 4.73 " " 26.50 29.71 1.645 5.5 30 23 3.59 ---- 3.72 " " 27.00 28.60 1.401 4.9 29 22 3.65 .... 3.57 " " 27.50 26.26 1. 245 4.7 26 20 3.72 _.-. 3.25 " " 28.00 27.89 1.378 4.9 28 21 3.79 ---- 3.47 " " 28.50 298.56 10.809 3.6 149 109 3.86 42 .... SAND to Clayey SAND * >140 29.00 508.90 10.103 2.0 102 73 3.93 45 ---- SAND 130-140 29.50 259.72 8.449 3.3 130 93 3.99 42 ---- SAND to Clayey SANa * >140 30.00 348.66 8.932 2.6 174 123 4.06 43 .... " 130·140 30.50 295 .62 5.125 1.7 59 41 4.13 42 .... SAND " 31,00 96.95 2.851 2.9 39 27 4.20 .... 12.65 Sandy SilT to Clayey SILT " 31.50 303.83 6.847 2.3 61 42 4.27 42 .... SAND " 32.00 341.56 6.893 2.0 68 47 4,33 43 -... " " 32.50 361.13 5.197 1.4 72 49 4.40 43 --.. " " John Sarmiento & Associates Cone Penetration Testing Service PROJECT: fINCH AVENUE SITE CPT NO.: CPT·2 Page 2 of 2 LOCATIQN: Cupertino CA OATE : 04·02-2004 I. PROJ. NO.: 6264.3.002.01<EGO-61) Groundwater not encountered Terminated at 39.5 feet OEPTH Qc fs Rf SPT SPT TotHzStr PHI SU SOtL BEHAVIOR DENSITY RANGE (feet> (tsf) (tsf) (X) (N) (NI) (ksf) (deg.) (ksf) TYPE (pcf) 33.00 94.92 5.618 5.9 95 64 4.47 12.36 Very Stiff Fine Grained * >140 33.50 40.97 3.027 7.4 41 27 4.54 5.16 CLAY 130·140 34.00 106.48 3.781 3.6 43 28 4.60 13.89 sandy SilT to CLayey SILT .. 34.50 81. 74 6.640 8.1 82 54 4.67 10.59 Very Stiff Fine Grained * >140 35.00 366.80 7.658 2.1 73 48 4.74 43 SANO 130-140 35.50 328.37 9.839 3.0 164 106 4.81 42 SAND to CLayey SAND * >140 36.00 158.91 7.703 4.8 159 101 4.88 20.86 Very Stiff Fine Grained * .. 36.50 156.78 7.443 4.7 157 99 4.95 20.57 .. .. 37.00 238.52 7.359 3.1 119 75 5.02 40 SAND to Clayey SAND .. .. 37.50 333.84 9.387 2.8 167 104 5.09 42 .. .. 38.0D 361.63 8.785 2.4 181 111 5.16 43 .. 130-140 38.50 325.93 5.377 1.6 65 40 5.23 42 SANO .. 39.00 393.26 8.771 2.2 197 119 5.29 43 SAND to Clayey SAND W .. 39.50 542.17 9.595 1.8 108 65 5.36 45 SAND .. DEPTH = Sampling interval (2 inches) Qc ~ Tip bearing resistance TotStr = Total Stress using est. dens hy** Fs = Sleeve friction resistance Phi = SoiL friction angle· Rf = Tip/Sleeve ratio Su = Undrained Soil Strength- (Nk=10 for Qc<9 tsl) SPT = Equivalent Standard Penetration Test· (Nk=12 for Qc=9 to 12 tsf) (Nk=15 for Qc>12 tsf) References: * Robertson and CampanelLa, 1988 ** at sen, 1989 *** Durgunoglu & Mitchell, 1975 John Sarmiento & Associates Cone Penetration Testing Service PROJECT: FINCH AVENUE StTE CPT NO.: CPT-3 Page 1 of 1 lOCATION: Cupertino CA OATE : 04'02-2004 PROJ. NO.: 6264.3.002.01(EGO-61) Groundwater not encountered Terminated at 31.0 feet OEPTH Qc Fs Rf SPT SPT TotHzStr PHI SU SOIL BEHAVIOR DENSITY RANGE (feet) (tsl) (tsf) (X) (N) (NI) (ksl) (dog.) (ksf) TYPE (pel) 0.50 16.91 O.OBO 0.5 7 11 0.06 ---- 2.25 Sandy SILT to Clayey SILT B5-90 1.00 17.64 0.595 3.4 12 19 0.12 --~- 2.34 Silty CLAY to CLAY 120·130 1.50 16.22 0.524 3.2 11 17 0.18 .--- 2.15 " " 2.00 17.88 0.702 3.9 12 19 0.24 ---. 2.37 " " 2.50 16.93 0.748 4.4 17 27 0.31 .--- 2.24 CLAY " 3.00 19.76 0.957 4.8 20 32 0.37 _0_' 2.61 " 130-140 3.50 20.99 1.142 5.4 21 34 0.44 ._0- 2.77 " " 4.00 21. 19 1.165 5.5 21 34 0.51 .--- 2.79 " " 4.50 21.80 1.166 5.3 22 35 0.57 .--- 2.87 " " 5.00 23.02 1.054 4.6 23 37 0.64 -... 3.03 " " 5.50 19.40 1.110 5.7 19 31 0.71 ---- 2.54 " " 6.00 23.22 1.292 5.6 23 37 0.78 ---- 3.04 " " 6.50 25.86 1.580 6.1 26 41 0.84 -.-- 3.39 " " 7.00 16.99 1.210 7.1 17 26 0.91 ---- 2.20 " " 7.50 18.44 1.092 5.9 18 27 0.98 ---- 2.39 " " 8.00 18.89 1.247 6.6 19 26 1.05 ---- 2.45 " " 8.50 21.09 1.371 6.5 21 29 1.11 ---- 2.74 " " 9.00 20.89 1. 359 6.5 21 28 1.18 ---- 2.71 " " 9.50 21. 19 1.310 6.2 21 27 1.25 .--- 2.74 " " 10.00 21.19 1.268 6.0 21 26 1.32 ---- 2.74 " " 10.50 20.69 1. 246 6.0 21 25 1.38 ---. 2.67 " " 11.00 23.63 1.414 6.0 24 28 1.45 .--- 3.05 " " 11.50 23.63 1.592 6.7 24 27 1.52 _ow. 3.05 " " 12.00 25.86 1.646 6.4 26 29 1.59 ---- 3.34 " " 12.50 23.53 1.732 7.4 24 26 1.65 ---- 3.03 " " 13.00 14.28 1.079 7.6 14 15 1.72 ---- 1.79 " 120-130 13.50 12.88 0.859 6.7 13 14 1.78 __OM 1.60 " " 14.00 12.80 0.711 5.6 13 13 1.85 ---- 1.58 " " 14.50 13.23 0.520 3.9 13 14 1.91 __ow 1.64 " " 15.00 17.03 1.047 6.2 17 17 1.97 ---- 2.14 " 130-140 15.50 69.77 4.643 6.7 70 70 2.04 ---- 9.17 Very Stiff Fine Grained * " 16.00 87.61 5.285 6.0 88 87 2.11 ---- 11.54 " >140 16.50 43.00 2.922 6.8 43 43 2.18 ---- 5.59 CLAY 130·140 17.00 59.63 3.651 6.1 60 59 2.24 ---- 7.80 Very Stiff Fine Grained * " 17.50 40.97 2.925 7.1 41 41 2.31 ---- 5.31 CLAY " 18.00 30.32 1.812 6.0 30 30 2.38 ---- 3.88 " " 18.50 37.72 1. 925 5. I 38 37 2.45 ---- 4.87 " " 19.00 38.03 2.089 5.5 38 38 2.51 ---- 4.90 " " 19.50 36.00 2.117 5.9 36 35 2.58 ---- 4.63 " " 20.00 33.56 1.9S1 5.8 34 32 2.65 ---- 4.30 " " 20.50 32.35 1.869 5.8 32 30 2.72 _OM. 4.13 " " 21.00 28.70 1. 606 5.6 29 26 2.78 ---- 3.64 " " 21.50 30.52 1.393 4.6 20 18 2.85 -.-- 3.88 Silty CLAY to CLAY " 22.00 34.88 1.390 4.0 17 15 2.92 ---- 4.46 Clayey SilT to Silty CLAY " 22.50 34.88 1. 600 4.6 23 19 2.99 ---- 4.45 Silty CLAY to CLAY " 23.00 29.00 1.557 5.4 29 24 3.05 --.- 3.66 CLAY " 23.50 26.67 1.392 5.2 27 22 3.12 -.-. 3.35 " " 24.00 31.64 1.564 4.9 32 26 3.19 ---- 4.01 " " 24.50 28.19 1.419 5.0 28 23 3.26 ---- 3.54 " " 25.00 28.09 1.411 5.0 28 22 3.32 -.-. 3.52 " " 25.50 30.93 1. 343 4.3 21 16 3.39 ---- 3.90 Silty CLAY to CLAY " 26.00 32.04 1.485 4.6 21 17 3.46 ---- 4.04 " " 26.50 35.90 2.013 5.6 36 28 3.53 ---- 4.55 CLAY " 27.00 40.16 2.052 5.1 40 30 3.59 ---- 5.11 " " 27.>0 46.75 2.392 5.1 47 35 3.66 ---- 5.99 " " 28.00 50.91 2.898 5.7 51 38 3.73 __ow 6.54 " " 28.50 45.73 2.696 5.9 46 34 3.80 ---- 5.84 " " 29.00 44.31 2.560 5.8 44 32 3.86 .--- 5.65 " " 29.50 31.33 1.641 5.2 31 23 3.93 _OM. 3.92 " " 30.00 29.31 1. 359 4.6 20 14 4.00 ---- 3.64 Silty CLAY to CLAY " 30.50 25.66 1. 060 4.1 17 12 4.07 ---- 3.15 " " 31.00 24.64 1. 066 4.3 16 12 4.13 ---- 3.01 " " DEPTH = Sampling interval (2 inches> Qc = Tip bearing resistance TetStr = Total Stress using est. density** Fs = Sleeve friction resistance Phi = Soil friction angle* Rf = Tip/Sleeve ratio su = Undrained soil Strength* (Nk=10 for Qc<9 tsf) SPT = Equivalent Standard Penetration TestW (NK=12 for Qc=9 to J¡ }if) ~k=15 for QC>~ tfl) . References: * Robertson and Campanella, 1988 o n armzento SSoclates ** Olsen, 1989 *** Durgunoglu & Mitchell, 1975 Cone Penetration Testing Service PROJECT: FINCH AVENUE SITE CPT NO.: CPT-4 Page 1 of 2 LOCATION: Cupertino CA DATE : 04·02·2004 PROJ. NO.: 6264.3.D02.01(EGO·61) Groundwater not encountered Terminated at 44.5 feet OEPTN CC Fs Rf SPT SPT TotHzStr PHI SU SOIL BEHAVIOR DENSITY RANGE (feet> (tsl) (tsf) (X) (N) (NI) (ksl) (deg.) (ksl) TYPE (pc I) 0.50 82.18 2.055 2.5 33 53 0.06 .~-- 10.95 Sandy SILT to Clayey SILT .. 1.00 12.55 0.961 7.7 13 20 0.12 .--. 1.66 CLAY 120·130 1.50 14.13 1. 098 7.8 14 23 0.19 -.-. 1.87 " .. 2.00 7.99 0.664 8.3 8 13 0.25 ---- 1.57 " .. 2.50 20.19 1. 366 6.8 20 32 0.31 ---- 2.67 " 130·140 3.00 17.71 1.553 8.B 18 28 0.38 ---- 2.34 " .. 3.50 24.97 1.381 5.5 25 40 0.45 ---- 3.30 " .. 4.00 16.23 1. 293 8.0 16 26 0.51 ._~. 2.13 " .. 4.50 10.95 0.780 7.1 11 18 0.58 .--. 1.78 " 120-130 5.00 6.01 0.376 6.3 6 10 0.64 ---- 1.14 " 110·120 5.50 12.69 1.02.1 8.0 13 20 0.70 ---~ 1.65 " 120-130 6.00 14.63 1.019 7.0 15 23 0.76 -.-- 1.90 " " 6:50 16.80 1.252 7.5 17 27 0.83 .-.- 2.18 " 130·140 7.00 19.47 1.554 8.0 19 30 0.90 ~ ~ -- 2.54 .. " 7.50 25.27 1.913 7.6 25 37 0.96 .--. 3.31 .. .. 8.00 23.95 1.692 7.1 24 33 1.03 ---- 3.13 .. .. 8.50 26.0B 2.030 7.8 26 36 1.10 ---- 3.40 " .. 9.00 28.42 2.282 8.0 28 38 1.17 .--- 3.71 " .. 9.50 30.34 2.508 8.3 30 39 1.23 ---- 3.96 " " 10.00 39.37 2.454 6.2 39 49 1.30 ---- 5.16 .. " 10.50 23.95 1. 943 8.1 24 29 1.37 -_.- 3.10 " " 11.00 20.91 I 1. 924 9.2 21 25 1.44 ---- 2.69 .. " 11.50 22.84 1. 907 8.4 23 26 1.50 ---- 2.95 .. .. 12.00 23.04 1. 983 8.6 23 26 1.57 --.. 2.97 .. .. 12.50 23.14 1.919 8.3 23 26 1.64 ..-- 2.98 .. .. 13.00 23.95 1. 963 8.2 24 26 1.71 --_.. 3.08 " .. 13.50 25.38 2.049 8.1 25 27 1.77 -~.- 3.27 .. .. 14.00 27.00 2.332 8.6 27 28 1.84 ..-- 3.48 " " 14.50 17.46 1.463 8.4 17 IB 1.91 ---- 2.20 " .. 15.00 14.49 1.204 8.3 14 15 1.98 .. - ~ 1.80 .. .. 15.50 15.34 1..281 8.4 15 15 2.04 .-.- 1.91 .. " 16.00 3B.87 2.808 7.2 39 39 2.11 ---- 5.04 .. .. 16.S0 43.73 3.156 7.2 44 44 2.18 -... 5.69 " " 17.00 41.40 3.331 8.0 41 41 2.24 ---- 5.37 " " 17.50 39.5B 3.082 7.8 40 39 2.31 .~~- 5.12 " .. 18.00 36.74 2.562 7.0 37 36 2.38 ---- 4.74 " .. 18.50 117.57 6.412 5.5 118 117 2.45 ._.~ 15.51 Very Stiff Fine Grained * >140 19.00 165.45 7.886 4.B 165 164 2.52 ---. 21.89 .. " 19.50 149.02 6.673 4.5 149 144 2.59 ---- 19.70 " " 20.00 42.01 2.41B 5.8 42 40 2.66 ---- 5.42 CLAY 130-140 20.50 34.40 1.695 4.9 34 32 2.72 --.- 4.41 " .. 21.00 37.55 1.766 4.7 25 23 2.79 -.-- 4.82 Silty CLAY to CLAY " 21. 50 41.20 1.828 4.4 27 24 2.86 .--- 5.30 .. .. 22.00 47.08 2.200 4.7 31 27 2.93 --.- 6.08 .. .. 22.50 50.02 2.519 5.0 33 28 2.99 ---- 6.47 " " 23.00 53.77 2.946 5.5 54 44 3.06 ~~-- 6.97 CLAY " 23.50 48.30 2.935 6.1 48 39 3.13 ---- 6.23 " " 24.00 39.58 2.625 6.6 40 32 3.20 ---- 5.06 " " 24.50 42.72 2.670 6.3 43 34 3.26 _..- 5.48 " " 25.00 43.63 2.507 5.7 44 34 3.33 -~-- 5.60 " " 25.50 42.52 2.507 5.9 43 33 3.40 -.-. 5.44 " " 26.00 40.18 2.448 6.1 40 31 3.47 ---- 5.13 " .. 26.50 46.78 2.805 6.0 47 36 3.53 ~ - -- 6.00 " " 27.00 46.27 3.042 6.6 46 35 3.60 ..-. 5.93 .. " 27.50 44.04 3.230 7.3 44 33 3.67 .... 5.63 " .. 28.00 41.91 3.643 8.7 42 31 3.74 .--- 5.34 " .. 28.50 43.94 3.496 8.0 44 32 3.80 --.- 5.60 " " 29.00 158.96 6.750 4.2 159 116 3.87 - ~ -- 20.94 very St i ff Fine Grained * >140 29.50 137.96 6.982 5.1 138 99 3.94 ---- 18.13 " " 30.00 85.32 4.649 5.4 85 61 4.01 --.. 11.11 " 130:140 30.50 42.11 1. 760 4.2 21 15 4.08 .-.. 5.34 clayey SILT to Silty CLAY " 31.00 54.59 2.876 5.3 55 38 4.15 . - ~- 7.00 CLAY .. 31. 50 54.18 2.574 4.8 36 25 4.21 -... 6.94 Sil ty CLAY to CLAY " 32.00 56.01 2.749 4.9 37 26 4.28 ---- 7.18 " " 32.50 45.26 2.387 5.3 45 31 4.35 ---- 5.74 CLAY .. John Sarmiento & Associates Cone Penetration Testing Service PROJECT: FINCH AVENUE SITE CPT NO.: CPT·4 Page 2 of 2 LOCATION: Cupertino CA DATE : 04·02·2004 PROJ. NO.: 6264.3.002.01(EGO-61) Groundwater not encountered Terminated at 44.5 feet DEPTH Qc Fs Nf SPT SPT TotHzStr PHI SU SOIL BEHAVIOR DENS!TY RANGE (feet) (tsf) (tsf) (X) (N) eN') (ksl) (deg.) (ksf) TYPE (pel) 33.00 47.28 2.345 5.G 32 21 4.42 6.01 Si (ty CLAY to CLAY " 33.50 43.63 2.207 5.1 44 29 4.48 5.52 CLAY " 34.00 37.34 2.173 5.8 37 25 4.55 4.68 " " 34.50 43.83 2.261 5.2 44 29 4.62 5.54 " " 35.00 27.20 1.337 4.9 27 18 4.69 3.31 " " 35.50 27.00 1.414 5.2 27 17 4.75 3.28 " " 36.00 26.19 1.281 4.9 26 17 4.82 3.17 " " 36.50 26.80 1. 224 4.6 18 11 4.89 3.25 si l ty CLAY to CLAY " 37.00 54.08 2.855 5.3 54 34 4.96 6.88 CLAY " 37.50 34.20 1. 898 5.6 34 21 5.02 4.22 " " 38.00 29.63 1.239 4.2 20 12 5.09 3.61 Silty CLAY to CLAY " 38.50 31.76 1.570 4.9 32 20 5.16 3.89 CLAY " 39.00 35.62 2.031 5.7 36 22 5.23 4.40 " " 39.50 80.34 5.330 6.6 80 49 5.29 10.36 Very Stiff Fine Grained * >140 40.00 195.26 8.835 4.5 195 118 5.36 25.68 " " 40.50 193.54 8.392 4.3 194 116 5.43 25.44 " " 41.00 322.75 8.998 2.8 161 96 5.50 42 SAND to Clayey SAND * " 41. 50 296.58 13.419 4.5 297 175 5.57 39.17 Very Stiff Fine Grained * " 42.00 439.49 10.338 2,4 220 129 5.64 43 SAND to Clayey SAND * 130-140 42.50 436.24 10.636 2.4 218 127 5.71 43 " " 43.00 321.03 9.824 3.1 161 92 5.78 42 " >140 43.50 374.27 10.338 2.8 187 107 5.85 42 " " 44.00 368.19 9.407 2.6 184 104 5.92 42 " 130·140 44.50 503.81 9.145 1.8 101 57 5.98 44 SAND " DEPTH ; Sampling interval (2 inches) Qc = Tip bearing resistance TotStr = Total Stress using est. density""" Fs = Sleeve friction resistance Phi = Soit friction angle* Rf = Tip/Sleeve ratio Su = Undrained Soil Strength* CNk=10 for Qc<9 tsf) SPT = Equivalent Standard Penetration Test* (Nk=12 for Qc=9 to 12 tsf) (Nk=15 for Qc>12 tsf) References: * Robertson and Campanella, 1988 ** ol sen, 1989 *** Durgunoglu & Mitchell, 1975 John Sarmiento & Associates Cone Penetration Testing Service · 6264.3.002.01 April 21, 2004 APPENDIX B LOWNEY ASSOCIATES (2000) Select Figure Log of Borings PETER KALDVEER AND ASSOCIATES, INC. (1980) Select Figure ENGEO INCORPORATED ----- I, N ~ ..../ ~ l VALLe: PARKWAY _.------. I ¡ EB-'t -.----- 51 ~ -I~' '" I:: -' 0 '" , !u ! '" EB-, ~ $ ~ I EB-3 '" $ ... I Æ \ '--- , , ST'EVENS CR£E:K BOULEVARD ¡ ( ') ~ . t:.: " " LEGEND S - Approxìmate locatk: eXF. .- ;::':o:y boring A roximated Scale: o 250 t ' . So:.:, f.1t Ban by kiltr .. Wright, dQted '5/913. ---.. IQ/QCI'OQ \.,--.~. SITE PW ';;MPAQ MIXED (;,;E SITE ".:u.pertino, CLh "-n"nia LOWNEYASSC EnvironrnentoljGeotechnicaljEngir, . IA; '9 s. .--,--. - ~" "'-. FIGUÌ!I 2 l1U7-28 DRILL RIG; MOBILE 8-24 BORING TYPE: 3-INCH FLlGf" 'LOGGED BY: AJR .S1 ART DATE: 9·20-00 ~ Q " ;¡; ~~ ~[ " ~::: ~ ~- .. Q ~ /.'" 19.1 (", ¡.; 14.Q 12..2 '- 64.4 51.1 . . .'. 55.1 ~ ~ ~ $ }; 49.7 " 'f1I11I1oQ;sl WIirI!:; aI~~o;IDO..Jn"'c' 11v.I~Or( lII""... cto.".."¡'h..I<>C;.·", _CQ'IO,lI(Inf"'-'" E;X:PLORA TORY BORING: EI PFiOJECT NO: 1047·28 PI.OJECT: COMPAC~, ~CCATION: CUPER-I~: Fl.'. ~ DATE: 9-20.0C COMPLETION OEPTI ' ~. :.JGER M>ð"'-""I'OI"\,IU4It~' II"" IO<;aIian crflh<o .~øI"·;OIOO" ...~,~~.nd,\tY t~~ ~t'I"'¡¡ttJrt1p1i1\glio<'of W n :\<.J(y >OO.Mt'¡It>4-Qn<to. ,j, ~ ~; ~~ ~ i:::~ ND REMARK" õ I,IJüi' ~ ~&H- 80 FT, (+/-) : dium sand I , ML i 16 - .. " , r::;:wn, trace fir;2s SP i ~::1e sand. i 27 - ì i , I · I , CL I I i " · ! · [ - " ¡ " :nottles, fiOt': to r SP I -.,. , .:~md. trace fi¡,e · CL " 1> , I , ,I. well grad ,d · , 47 , i , SP ! - i i i - "t1IrfUMMot AU60tlotJ, '<I~",*,.O{ItfIÐ "...u1.o.COI\dIIIØIIIII'I.,.4i« .,t"~I'I'M,'OI4~npl'f ,._.rranWliont~_ MATER!·, .' JESCRIPTION A SUR"' SANDY SILT 1M . stiff, dry to ma!.~-- GRAVELLY $/' medium demi' ::: ELEVATION: Jfown, fine to me ·(SP) ! to moist. light b SILTY CLAY ,'( very stiff, dr)' I:. ~ .)¡st, brown. trace moderate pIa:" increasing fir ;~ ~d GRAVELL·" ". dense, moist. coarse gra'lel SILTY CLAY, hard, moi:;;l ~, gravel. low ,0.' GRAVELL'r", dense, drl \r. :': ~.; .~: '~':?~.: ". ~ '. ....::.,'.. '..,'.'. ....... '. . ~ " ¡¡ ·¡SP) . 'In with light brow, . :8 clay fines ",' SOME SAND (Ci . flne to medium ·ty j; (SP) ) ¡, brown, fine gra (, inued Next Page ":s{ GROUND WATER OB$ERV.i,; ~. ~i: NO FRee GROUNDW'.l l ''!COUNTERED LOVINEVASS : CIA1ES Envttonmental/GeolechnlocU ,c.oong SeIVloes , c ~ ,. '- \-1 Sh¡,et 1 of 2 --- ,~. USE SITE .,1::.1 J.CA ;.0 =T. , -. ... I Unø·.:.oneaSftHrSll'w!g!h I I"" , ~ .",;--¡~ z o POCIIJ<I l'oroerotMW Vi:!! .' :E:~~ ¡tg ATM,·'''' ~, i~~ ~s: g:~ I~- _N . UI"ICI.vtinodCcMlpNIIIOf'I W "0 :,,; 10 ~o: I '" u-o -a)C "COIftInt~ ... 2.. 10 ',0 -- ¡ " I ~ , I " '--. 121 e¡ 106 f-- , "' e¡ f..-. .. : 122 e¡ , I I-- ¡ I ì i i f--+. I Northinf)· 1.944,133 Easting. 6.122,381 . 'I r [ I I ~. 1 ¡; - EB-. t047·2S ~ ::: 1.:". ! ( . v .;:' h: '.' .' PLORA TORY BORING: EB-l Cont'd St1eet 2 of 2 PROJECT NO: 1047-2' .T AUGER PROJECT: COMPAQ ., 'XEJ USE SITE LOCATION: CUPERTI 0, ';A . ~ISH DATE: 9-20-00 COMPLETION DEPTH: 'S.(.FT, ·._OV~AJ.DciM'" ..?~~""'~u_... I ! I Ur.~ '~Kl90 She¥ $hogIh ..,~ T1n.soumptJgl\-wb.. ootr"ltlU.. ~"r~.% )IonNÎOI'I ,,- IkOt) ··_:;-.s...tÞ'W'f(þOrf~''"rlrfll''''''~lø'nw~)lnal'!Y l' ¡ i~ >;ign"';¡¡'lirrIIr,Th.H,ctìØIIcrrl\I"'~_...~lto1la'S'~øl ZIl.~1 ILl ,~ 1: 1¡J~ o PQo:J;Q!þ"""fQIOMW ~ g~~1 :IfW;I;td......T...n.-.".'"_.'Q~Iy e.f\\..,beQ/llol!lJII . ~ .¡~',- ~"'I~~ r ,~::~.¡ t:::J Tel·..W" ~ .t';;:. ~~ ~~ . I#~ðl I ~". \L DESCRiPTION A'1D REMARrS õ ! '" ~ l¿ ~d .V"c.l_..-mnlKl~ ~ : 2~~ ! Q I~' Å; u·... l'noUlõll CaonptuIlM .---! 1- ,-:; ,"0 ~o .,. ',ND (SP) I· Î I loist, brown, fine gpuel, well grac~d sp ~f~ I ! I - I 'CLI I ml, fine to medium índ, trace fine , , , ie plasticity CL f' i ¡ I , ì ¡ i ---i. 'WITH GRAVt:L (scï « I ì Jense, moist. dark br-:;wn, fine to ("\:lame ! , I , i : . I , I ¡ sc I - t I -¡ " r , i , ! , , i, I ND(SP) " , i ¡ìst. brown. tine grélli~ I. well graded sp , , .. i -_. , I g at 45 feet i , ! i , ! I , , I "! , I ! I I I - --i_ I I , I I ! I I , ¡ , I U. i I I I I - I I I I i I i I I 1 I ,.J~ _.jl=., , I - 1 I NS; Nonhing ENCOUNTERED 1,944,133 Eastjng' 6.122,381 " _. ._~--, EX DRILL RIG: MOBILE 8-24 BORING TYPE: 3-INCH FLli' LOGGED BY: AJR START DATE: 9-20-00 ..J ~¡;, fO' i m'" 8\!> ~ i'N.1Oq".ø.'( "'''''''~IIoa.·'"O .IVWlimtold>1'; -..g.c,,- \i-.O(. .:oau.Ia>na:<.t-.,. MATC 49.7 3 .... GRAVt:LL y-" ::'{,:;': dense, dry tl 48.2 SANDY cu. ' stiff, moist. . gravel, motJ" 44.5 35 CLAYEY SAi, dense to vet gravel '--' 3e.2 34.7 45 5 .......' ::"~):~': GRAVELLY·· very dense 5 iii < ;. " § ª S ~ . , GROUND WATER.OSSERV, '~( j NO FR.EE GROUNOW/" Bottom of 8. LOYNE\'AS~:· XIATES EnvironmQntol/GAOtechnlcal F -jneârlr\a SøMC'SS Ea-I U\4?~?t CRill RIG: MOBilE 8·24 BORING TYPE: 3·INCH Fll ...... LOGGEO BY: AJR START DA IE: 9-2Q.00 ¡. z " g §~ ¡; 1(;: " w it"- ~ .. iii § ;' 83.2 82.9 ¡:" I Thi."",,¡, 1.11(' ,,__<10.:.<_'<"-' ~I__gt<l"'· UI""'iI."Ih".-··. ~_4>L;'·.'; MATE sur 2 Inches of ;, :aïT stiff. mois!, " Plasticity In J'. I:h: 67. ....: I ,. 64.2 k " 68.2 Botl.Ofr; '.)f F ~ ~ ª i 3 ~ @ '( GROUND WATER 08S!~RiÏ,. f' 0 FREE GROUN~Wf( Pf10JECT NO: ',047·2r PHOJECT: COMPAQ f:IXB. USE SITE lOCATION: CUPERm O. c.~ :ISH DATE: 9-20-OC COMPl.ETION'D.E~~ 25.0 FT. .tII9O'IÞOf~""A'lIðI:Øt." t'\"'~noIC.~.-cI"'~ ! ~ TNICI<t~ IOtI;lppI"'anl'fIO Ih- loc;o\ioanDflM .~tlOf\ ¡ S",I>MIrlKe=.,dj\óol'\I",.-¡oJ,o I.,~,_IDC:IoIioI>.rdm." !- <In_lhllm..TlWu~tOt\P""""'.~"'I....,Þwllc';lIiO¡10' 11,/ ¡Õ~·"'":' '.::DIIfIL..wI.rI'WlIiIÎOI'I.boI_n,.;.J/y M.M't~Cll"QlI~. a.. :¡:::.z; ~ ;.. '««'ii. n' ,. I ~t;:: ~ ! ~~~ E'xPLORATORYBORING: EB-2 . AUGER L DESCRIPTION Ai '0 REMARKS ¡, ;i}: !i~ ~ü."' I;;u-. W(,J Õo.-ICa. .., :¡~ L~~ L Q i , i : , I , ì 1-. . 12 H " ,., , i ~., , , I 16 H 19 11. I I , Cl " H 18 '" I \. j 41 1:"_4 ~5 ~~~ I I ¡ ! ·'CE ELEVATION: l3 FT. (+/-) halt L) ~ brown,' trace fine-su'1d, row p!asti~ity = 16 , Liquid Limit = J3 - sing fine sand. dark ¡rown with lieht ~Ies I 1 j i i I ~ ì 136 (5C) oist. brown. well gta:::ed. trace fine TH SOME SAf' D (CL, brown. fine to m~djl 'TI sand. row 1 ic: ----¡- ..I I " : 11 r I , ~ < at 25 feet. I ~ C~ I . I I 1 25 , J -I -I ~ I I J ~~.. INS: . ENCOUNTERED r_·_' LOVINEVAS~XIATES Envlronmental/Geot&CtlnicolJ .1inéérina Services 1J ,113 i ,.. ]241 I ¡ I i ,-~, Sheet·1 of 1 o ~~ III"" <- <" ;:~ ~. 00 "< ~ " Ul'Iðr.lll"l&Ø Sri"" stNI9h """ OPOO<(I'p~ ð....~H~ . U "lÇ(¡'~C~ ... u.u r.,Þat ComprdIIGn '0 :.0 ~.a ..0 lib þ . I I I ¡ I I, i I Q L-L.. I ! I , I I ! I~ , i I I , I L_L Ii ¡ I ! I i , I i I ! j J I 1 e'J I , i ¡ I I I i , , i , I , -'---.- Northing: Eastin :r 1,944,096 6,122.099 8B·2 1047.28 '.: ~ :.~ CRILL RIG: MOBILE 8-24 BORING TYpe: :>-INCH FL LOGGED BY: AJR START DATE: 9-20·00 " L ~!;; ::¡ nv..:o-¡..~ ,!~a,· ~tI..lirrlto ' ClU'~"'II';' ~Q IICI"" " ~- ..~ I!! I!. ", EXPLORATORY BORING: EB-3 PROJECT NO: 1047-28 PROJECT: COMPAQ <1IXE') USE SITE LOCATION: CLiPERTI'JO, (A NI.SH DATE: 9-20-00 COMPLETION [,EPT~2~ FT. "'~""L-...y ll"~".~""~ftOl"""udu. . . 'u.n.¡I(I.IIQ1II\Ïøn.øøMIOfIIrt«IJ"loctlioo'\QIIIMo.~n I .-'~.SuD""""'œwwIIIion."",,CII"...r,"_løcaciønll""'''''' ~!""'....u!I I Ioe.Tn.(IotKrlPIJOn/l"""'fIIOdi:l,l';møI¡~" .._..-.d.T"",oNont~""'I')1>oo'I"ayl>e1 ",ol"'" iT AUGER 79.9 ,79,6 MAn . ilL DESCRIPTlON ANO REMARKS· "ACE ELEVATION: BO FT, (+/-) ,halt CL) '!, dark brown, mOd~t1te pJasricit'l, trace '. 68,S 61.S SILTY SANl mediuf'n dE' fine ~and " ,.,: :- '. . 56, ~ ~ 51.9 § a ~ 49.9 R . sa'nd ,)ED SAND (SP) dry to moist, browr.. trace c:!ay fliles, J ~~Oist. orange browr:, poorly gr:'1ed. fl "'- S" ~ ! 'iTH TRACE SAND (C L) I ìwn, low plastiCity. fine to metiiwn sand J , , , -, ,WITH TRAce GRAVEL (SC) Jist, brown, .fine to CQ·"Hse gravel, well , , , , ~ sc lfltinu~d Next Page GROUNDWATER OBSER"· ')NS; NO FREE GRQUNDW:' "ENCOUNTERED --"'-~ . , -,.,,--,~,.- ..-......-, - I CL , I ~ -w-I Qu"":,J: <ii~13 "~- i _'f,=-- !tI¡;;;Q/ ¡¡¡wg¡ :J) ,;..<::- l I . ~ ' ~ ~r,~J ~ !ã[,'I~~ I ~ 0:0. >- :t:fl~ ¡ g , I I I I õ ~ r--- I i I ~- , " t'lj ". i- f- " (~ :- CL i I I Hi i 118! ! i ;- " ¡~ f-' I i ; l:'./lOC I 27 ¡}.~ 6 '126' .- sr , I , 27 1< ", r ~ : ,. 19 t,4 1< , ' ! I : I <4 11 , ¡ ~ ¡ I U ._'.L___ Sheet 1 of 2 UI'>II/'MIðG Shill!" Siren", ''''' o Pg..;.k11 "'~... ð. Yo/van. .unCOl1IÍnotdC~ "'U.( 1n2,ICI-'O~ 1.0 2.0 3.0 <40 99 j , . ! Northing' Easlin']. :0 I I 16J 0-1 i I , I I . I I . ; I I I I i i I ~c i i i I , , I ¡ I ! I ! '{ LOVINE\fPS XlA.TES EnvIfon~toI/Geojeçh{:icO! F"",,"ng SelVlces -r ! , I I I i I i I I i i I ¡ ! :, 1,943,845 6,122,181 Ea-. 1047-28 E;¿,l'LORATORY BORING: EB-3Cont'd PROJECT NO: 1047-28 PROJECT: COMPAQ MIXED USE SITE LOCATION: CUPERTINO, Ci\ COMPLETION DePTH: 35.0 :T. ¡ I UI~~&~..SIftlngltl ¡ 1:= ! 1""'1\ r:r:. III~'; ~ ! $~ 0 Pco<o!P_II't>mOIØ' _,~_. cr.;:: ¡;;_!,;;:!!! :: ::Iz,~z~!~"" 6.. TQNant g t;~ :!:G..I ~8 .. gf;. ~ ~1~;;:,. lJnc:ot1fY)e4CQC7lIRI1IOI\ ~ 0 j X:o:.¡' I ~ .... U·\.' 'r/U,)¡ ¡ Compru.~ , : 1.0 1.0 :),0 ".0 ~I ' ! I I ' ,. ORILL RIG: MOBILE 8-24 BORiNG TYPE' 3 INCH FL:'.' 'T AUGER '- ; , , . LOGGED BV: 'AJR START DATE; 5>-20-00 Thi"IØI!'.." '\II<><I·.""".ao S 11 l/'I.omeo, š- eII""",..t'''· " W "ø4A(~~ ~- u ~~ .~ w wlo. " w 0 " oj 0 MATE ~ 49,9 -- ~ CLA YEY Sþ (/'. very dense ~ graded 46,9 SANDY GR, 44,9 35 ~ very dense Bo«orn of " 40- / - 45- - - 60- SS- . eo-- . . \ , ¡' .. !;', .::' " U: ¡ l.~:. " r:' ! ~ ~ ¡¡ ª ø '0 :I GROUND WATER OSSERV, NO FREE GROUI/DWÞ,T :ilSH DA TE; 9-20·00 d."i><I,,~~~liH,"''1~l'OIbot.~:u.. ..c Thit 4411a'\¡11ÕCw1'ppWI 0l'il)' 10 fI'\~ IOI:aIÕO<'l ~I V\. ~oOll " Suo.Uff_.~1NY611"""'0U'I"-"I-"""'Mm.., .,,_....rtnlime.T...a~ <,,""""-IIi';tI~~'oC ..../::ð.....,.-nwa. 1"",1II000\5~' ..~t"",,*1 m~ ~ gra.1\llll. 'J\L DESCRIPTION AND REMARKS ::. WITH TRACE GRAVEl (SC) . -:'ist, brown, fine to- coarse gràvel, wen ?L WITH TRACE cLÃY (GC) - -,;ISt. light brown, fine 10 (';oarse sand. '''9 at 3S (eet. . NS, ENCOUNTERED LO\VNEYASS:X:IATES ErwlronmentoI!GeotOOhnlcqJji.,maering SeMce. Sheet 2 .of 2 w ~ i:' J~= -.~ ~o(ü; ':'M?: l!::!ûii5 I ~~ê~ ~ 3 v, J1 ~ sc i GC .7 ~ ~ ! I ¡ I I I I I H: I ' , ' J I i I I i I . , I - I I , ! , ; , , ! . , , ¡ ! j I , : , . , i I i ! , ! , I ! , --¡-- , , , j ! i i I I ! ì i ! I I i ¡ I I i , I I I I , , j ! I - , : ¡ , , : i ¡ i ; , , , ; ¡ , : , , ¡ . - - '; _ -Ii'" -1." ¡, ----' --~-~_. N( 1hing: 1,943,845 6,122,181 E:¡stin¡¡ ... .11>.. , EB-3 I047·Z8 DRILL RIG: MOBILE 8-24 , BORING lYPE; J.INCH FLIC '-- LOGGED BY: AJR START DATE: 9"20,00 ~;:- ~'" e ;:; ft;- :;: w_ ~ " õ w Th.I~¡" M- 11....,,-.I<><'I1I~*' IIlm.._~I...·, cn""9'"'_II1lÍI ,(t"IW~ EXPLORATORY BORING: EB-4 _._~------ PROJECT NO: 104 7·2P. PROJECT: COt<1PAQ MIXD US, SITE LOCATION: CLPERTIHO, CA COMPLETION C EPTH: 25_0 FT. ~I'· I ! =:11/..... J-:-!¡; ; .a I ot.J~' _' ¡ 41;1, ,., j~~. ~~I·~~¿i(fJ-.. E :I:~" ¡:.._.~\Io _ ó.-;-O/v.m, , ~;:':]~ _ :.-, ~~: ~ a~' f) ,::!!",~¡.c.\O~·.!,..,"", '-' ''''.'_'_~'~___ "j ~ ~J] '-'j. ~c:· ~ a:: 'iP - ......." '''''....-.............., . c.. - - ! - i Q .~. ë: ... U·(J T/'tIural CcmÞrtUlOn ·'T AUGER ; "JlSH DATE: 9-20-00 - .'~rtÞp01Þ'1'L.owrwf~..Wll/wo.oldno1~"_U; l ~ '. TIlIJ ~$l:np1_ Ippkl l1li17 10 IhoI _1>C>tO;-!~.. "",1<>"'-' M,~ con4I\IOiI,,"~cIrfI'" ~ OIIM' I""","""" ~~ <to..,. ..J. "" _11In-. 11\. _-.lIOII .,:.-..,.... II . ,~I1~""fiç;,o,..'" of ..ri<Dl,lrnW9U.T.....,....,.koro...".~ly9ftrr.vl:>oo¡i¡.û',:¡t· MATEr 'L OESCRIPTION ANO REMAR:'$ ACE I;LEVATION: 78 FT, (+1-) .,¡rH TRACE SAND (CLI dark bra,wn, moderate plasticity. - -, i , , ; ; I , ! ; ~ ~1 '~ 1, '''' , .. ::$ "I l' '" , ~ , I I ç,. i fine to l .j ! ~' ,.. r ~ ,- 113 I' I " t'1 I i 11 ~~, ~ 5 17,112 ~O (SP) - to moist. brown. well graden, (Ca· e clay 1 S~J iTH SOME SAND (CL) , fight brown, low plasticity, fine sand ,- >15 - I I l i J9 1',1':: I , J Slleet 1 of 1 -~"- 1.'1"CnIl'lIIdSnul'SIrwngV'I ¡.'rI) o P~¡>fl1~WMI« ... '0 ,,' ." , I i , I I r ! ! I i --~". !ð :"1 . ð -- .---- - C'.. -.., i ·:û ~ . j _._-" I i , ¡ " : Bon(.,n of 8e . gat 25 feet. ~ ~ " ~ ª ~ ';( 3 , ~_.__J GROUND WATER ChS2RVA ,)NS: NO FREE GROUNDWA L r< ENCOU/,¡TERED LOWNEVAsseXIATES environmental/Geotechnical/! l1n_1n9 Services ----- . ---....--,.------ Nrthíl'¡; 1,9'M07 ii,122,345 Jst¡n'j" EB4 1047-~8 SXPLORATORY BORING: EB-5 Sileel 1 of 1 DRILL RIG: MOBILE 8-24 PROJECT NO: 1047-28 \...... ;BORING TYPE: 3.INC¡i FLlG ,..- AUGER PROJECT: COMPAQ MIXED USE sns LOGGED BY: AJR I :OCA no. N: CUPEf.'TINQ, CA START DATE: 9-20.00 FISH DATE: 9-20-00 lfOMPLETION DEPTH: 25,0 FT. Thi'-O< "~I*'; *'_"tryVMn_AnIiIÔItI.........~l'QIt...-_......a . 1 ~.,.,<l-I>I""...~-- """1J UQ'lIlUOft"""llIIIfftol\t\oQtlOl,on""'UØl~~ . ·;:~:':~í:::~~-~7'~~ :=.~";':'~=~~:,": w ã~~ ! ;. >- ~~. ~...~OO<o:I¡liøn· .·............,~.T......,...,...,..·'Q I'¡ WI·/NIy~-·I!....:.·,..· ~ ...~-~.,~. p.;1~~ ~ ~~ ....;, ~ :=>1;. z-~ 0(:;; ....:- fi. t-.¡¡'\Uu 8 ~ To-,oIn' ,,¡ ,..... "" ~ ~,... 011. ~ ' ,1ATEP L. DESCR.IPTlON AND REM:\Rr:S t1 ~~~ VIii ~8 r- ~2' t t)t-.-UIIW>OOC~ _ .... U·(I "na>:,~¢~ I iTT Iii ! ~2 ' I I I ,. ~ 7 "I I : ~ ~ i!- }'j ¡;: ~I> ~ w ~ g III ~ 77,4 ~ $haat &fNnØIh :~~-1l o PQf'.J(o) ¡:'I f)(lI1Cmll" SUP",CE ELEVATION: 77 FT, (,/-) SANÖ~$i[f"'Li -, stiff, 'j¡-Y, gray "me 10 medium sand '.J 2." ". .,. " ML , i -'-,- 68,9 >_w ñTfRACE SAND (Ct.) .------. moist, darK brawn, fine to çc,;st. sand Ii 2;; .".' ,11.$ {:J som"~~ 'Joids --,.-- \.- 1r. 12 CL I I ) ,,' fj , I " ~¡ , ' .i ! ~¡ 311 !'(I i.ì . I ! ------~. , , !I ;120\ 1.9 Incrô.,in9 fir. .,and.light brown, hard. tracE gravel ---- ::'~\::-:': GRJ.\·r::T.::[-Yf· ÑÖ"(sP-) -._-,-- den~·.· n¡(líst. íown, fine gravel, well grade,'; ? ,10"" 56.4 ..... ....\.. .:.::.:::': :,":.', ::-t::'· 25 SP 52.4 -- ..-.... ~ ~ ~ e ª ~ 801:" "\ 0; 8e g;::¡t 25 feet. 3 : , I i -- ! ---------'----- -_._-- Gf\OUNO WATER OESE:WAT~)NS: NO FREE GROUNDWATER ENCOUNTERED I'i~rthir): ¡ a.stîi~ ¡: , ,944,445 r, ~ 22,420 ~ J _.._. LOWNr:Y;\SS(XIATES EnvitOl'\mef"ltol /GéOtec ;" 11c(] iF·' "Jlnoerlna Services EB.! 1047·n APPENDIX C ENGEO INCORPORATED Guide Contract Specifications 6264.3.002.01 April 21, 2004 ENGEO INCORPORATED ENGEO INCORPORATED GUIDE CONTRACT SPECIFICATIONS PART I - EARTHWORK PREFACE These specifications are intended as a guide for the earthwork performed at the subject development project. If there is a conflict between these specifications (including the recommendations of the geotechnical report) and agency or code requirements, it should be brought to the attention of ENGEO and Owner prior to contract bidding. PART I - GENERAL 1.01 WORK COVERED A. Grading, excavating, filling and backfilling, including trenching and backfilling for utilities as necessary to complete the Project as indicated on the Drawings. B. Subsurface drainage as indicated on the Drawings. 1.02 CODES AND STANDARDS A. Excavating, trenching, filling, backfilling, and grading work shall meet the applicable requirements of the Uniform Building Code and the standards and ordinances of state and local governing authorities. 1.03 SUBSURFACE SOIL CONDITIONS A. The Owners' Geotechnical Exploration report is available for inspection by bidder or Contractor. The Contractor shall refer to the findings and recommendations of the Geotechnical Exploration report in planning and executing his work. 1.04 DEFINITIONS A. Fill: All soil, rock, or soil-rock materials placed to raise the grades of the site or to backfill excavations. B. Backfill: All soil, rock or soil-rock material used to fill excavations and trenches. C. On-Site Material: Soil and/or rock material which is obtained ITom the site. 6264.3.002.01 April 21, 2004 I ENGEO INCORPORATED D. Imported Material: Soil and/or rock material which is brought to the site ¡¡-om off-site areas. E. Select Material: On-site and/or imported material which is approved by ENGEO as a specific-purpose fill. F. Engineered Fill: Fill upon which ENGEO has made sufficient observations and tests to confirm that the fill has been placed and compacted in accordance with specifications and requirements. G. Degree of Compaction or Relative Compaction: The ratio, expressed as a percentage, of the in-place dry density of the fill and backfill material as compacted in the field to the maximum dry density of the same material as determined by ASTM D-1557 or California 216 compaction test method. H. Optimum Moisture: Water content, percentage by dry weight, corresponding to the maximum dry density as determined by ASTM D-1557. 1. ENGEO: The project geotechnical engineering consulting firm, its employees or its designated representatives. J. Drawings: All documents, approved for construction, which describe the Work. 1.05 OBSER V A nON AND TESTING A. All site preparation, cutting and shaping, excavating, filling, and backfilling shall be carried out under the observation of ENGEO, employed and paid for by the Owners. ENGEO will perform appropriate field and laboratory tests to evaluate the suitability offill material, the proper moisture content for compaction, and the degree of compaction achieved. Any fill that does not meet the specification requirements shall be removed and/or reworked until the requirements are satisfied. B. Cutting and shaping, excavating, conditioning, filling, and compacting procedures require approval ofENGEO as they are performed. Any work found unsatisfactory or any work disturbed by subsequent operations before approval is granted shall be corrected in an approved manner as recommended by ENGEO. C. Tests for compaction will be made in accordance with test procedures outlined in ASTM D-1557, as applicable. Field testing of soils or compacted fill shall conform with the applicable requirements of ASTM D-2922. 6264.3.002.01 April 21, 2004 2 ENGEO INCORPORATED D. All authorized observation and testing will be paid for by the Owners. 1.06 SITE CONDITIONS A. Excavating, filling, backfilling, and grading work shall not be performed during unfavorable weather conditions. When the work is interrupted by rain, excavating, filling, backfilling, and grading work shall not be resumed until the site and soil conditions are suitable. B. Contractor shall take the necessary measures to prevent erosion of fteshly filled, backfilled, and graded areas until such time as permanent drainage and erosion control measures have been installed. PART 2 - PRODUCTS 2.01 GENERAL A. Contractor shall furnish all materials, tools, equipment, facilities, and services as required for performing the required excavating, filling, backfilling, and grading work, and trenching and backfilling for utilities. 2.02 SOIL MATERIALS A. Fill I. Material to be used for engineered fill and backfill shall be ftee ftom organic matter and other deleterious substances, and of such quality that it will compact thoroughly without excessive voids when watered and rolled. Excavated on-site material will be considered suitable for engineered fill and backfill if it contains no more than 3 percent organic matter, is ftee of debris and other deleterious substances and conforms to the requirements specified above. Rocks of maximum dimension in excess of two- thirds of the lift thickness shall be removed ftom any fill material to the satisfaction of ENGEO. 2. Excavated earth material which is suitable for engineered fill or backfill, as determined by ENGEO, shall be conditioned for reuse and properly stockpiled as required for later filling and backfilling operations. Conditioning shall consist of spreading material in layers not to exceed 8 inches and raking ftee of debris and rubble. Rocks and aggregate exceeding the allowed largest dimension, and deleterious material shall be removed ftom the site and disposed off site in a legal manner. 6264.3.002.01 April 21, 2004 3 ENGEO INCORPORATED 3. ENGEO shall be immediately notified if potential hazardous materials or suspect soils exhibiting staining or odor are encountered. Work activities shall be discontinued wi\hin \he area of potentially hazardous materials. ENGEO environmental personnel will conduct an assessment of the suspect hazardous material to determine the appropriate response and mitigation. Regulatory agencies may also be contacted to request concurrence and oversight. ENGEO will rely on the Owner, or a designated Owner's representative, to make necessary notices to the appropriate regulatory agencies. The Owner may request ENGEO's assistance in notifýing regulatory agencies, provided ENGEO receives Owner's written authorization to expand its scope of services. 4. ENGEO shall be notified at least 48 hours prior to the start of filling and backfilling operations so \hat it may evaluate samples of the material intended for use as fill and backfill. All materials to be used for filling and backfilling require the approval of ENGEO. B. Import Material: Where conditions require \he importation of fill material, the material shall be an inert, nonexpansive'soil or soil-rock material ITee of organic matter and meeting the following requirements unless otherwise approved by ENGEO. Gradation (ASTM 0-421): Sieve Size Percent Passin!! 2-inch #200 100 15 -70 Plasticity (ASTM 0-4318): Liquid Limit Plasticity Index <30 < 12 Swell Potential (ASTM 0-4546B): (at optimum moisture) Percent Heave Swell Pressure < 2 percent < 300 psf Resistance Value (ASTM D-2844): Minimum 25 Organic Content (ASTM D-2974): Less than 2 percent A sample of the proposed import material should be submitted to ENGEO for evaluation prior to delivery at the site. 2.03 SANO 6264.3.002.01 April 21, 2004 4 ENGEO INCORPORATED A. Sand for sand cushion under slabs and for bedding of pipe in utility trenches shall be a clean and graded, washed sand, ITee ITom clay or organic material, suitable for the intended purpose with 90 to 100 percent passing a No. 4 U.s. Standard Sieve, not more than 5 percent passing a No. 200 U.S. Standard Sieve, and generally conforming to ASTM C33 for fine aggregate. 2.04 AGGREGATE DRAINAGE FILL A. Aggregate drainage fill under concrete slabs and paving shall consist of broken stone, crushed or uncrushed gravel, clean quarry waste, or a combination thereof. The aggregate shall be ITee ITom fines, vegetable matter, loam, volcanic tuff, and other deleterious substances. It shall be of such quality that the absorption of water in a saturated surface dry condition does not exceed 3 percent of the oven dry weight of the samples. B. Aggregate drainage fill shall be of such size that the percentage composition by dry weight as determined by laboratory sieves (U. S. Series) will conform to the following grading: Sieve Size Percenta!!e Passin!! Sieve I Yz-inches I-inch #4 100 90 - 100 0-5 2.05 SUBDRAINS A. Perforated subdrain pipe of the required diameter shall be installed as shown on the drawings. The pipe(s) shall also conform to these specifications unless otherwise specified by ENGEO in the field. Subdrain pipe shall be manufactured in accordance with one of the following requirements: Desi!!n depths less than 30 feet Perforated ABS Solid Wall SDR 35 (ASTM D-2751) Perforated PVC Solid Wall SDR 35 (ASTM D-3034) - Perforated PVC A-2000 (ASTM F949) _ Perforated Corrugated HOPE double-wall (AASHTO M-252 or M-294, Caltrans Type S, 50 psi minimum stiflì¡ess) Desi!!n deoths less than 50 feet 6264.3,002.01 April 21, 2004 5 EN<3EO INCORPORATED - Perforated PVC SOR 23.5 Solid Wall (ASTM 0-3034) - Perforated Sch. 40 PVC Solid Wall (ASTM-1785) - Perforated ABS SDR23.5 Solid Wall (ASTM D-2751) - Perforated ABS OWV/Sch. 40 (ASTM D-266 I and D-1527) - Perforated Corrugated HOPE double-wall (AASHTO M-252 or M-294, Caltrans Type S, 70 psi minimum stiffi¡ess) Design depths less than 70 feet - Perforated ABS Solid Wall SDR 15.3 (ASTM D-275I) - Perforated Sch. 80 PVC (ASTM D-1785) - Perforated Corrugated Aluminum (ASTM B-745) B. Permeable Material (Class 2): Class 2 permeable material for filling trenches under, around, and over subdrains, behind building and retaining walls, and for pervious blankets shall consist of clean, coarse sand and gravel or crushed stone, conforming to the following grading requirements: Sieve Size Percenta!!e Passing Sieve I-inch 'I.-inch 3/8-inch #4 #8 #30 #50 #200 100 90 - 100 40 - 100 25 - 40 18 - 33 5 - 15 0-7 0-3 C. Filter Fabric: All filter fabric shall meet the following Minimum Average Roll Values unless otherwise specified by ENGEO. Grab Strength (ASTM D-4632)..............................................180 Ibs Mass Per Unit Area (ASTM D-4751)..................................... 6 oz/yd2 Apparent Opening Size (ASTM D-475 I) .............................. 70-100 U.S. Std. Sieve Flow Rate (ASTM 0-4491) 80 gal/min/ff Puncture Strength (ASTM 0-4833)........................................ 80 Ibs D. Vapor Retarder: Vapor Retarders shall consist of PVC, LDPE or HOPE impermeable sheeting at least 10 mils thick.. 2.06 PERMEABLE MATERIAL (Class I; Type A) 6264.3.002.01 April 21, 2004 6 ENGEO INCORPORATED A. Class 1 permeable material to be used in conjunction with filter fabric for backfilling of subdrain excavations shall conform to the following grading requirements: Sieve Size Percentage Passing Sieve 'I.-inch \'>-inch 3/S-inch #4 #8 #200 100 95 - 100 70 - 100 0-55 0-10 0-3 PART 3 - EXECUTION 3.01 STAKING AND GRADES A. Contractor shall lay out all his work, establish all necessary markers, bench marks, grading stakes, and other stakes as required to achieve design grades. 3.02 EXISTING UTILITIES A. Contractor shall verifY the location and depth (elevation) of all existing utilities and services before performing any excavation work. 3.03 EXCAVATION A. Contractor shall perform excavating as indicated and required for concrete footings, drilled piers, foundations, floor slabs, concrete walks, and site leveling and grading, and provide shoring, bracing, underpinning, cribbing, pumping, and planking as required. The bottoms of excavations shall be firm undisturbed earth, clean and ITee ITom loose material, debris, and foreign matter. B. Excavations shall be kept ITee ITom water at all times. Adequate dewatering equipment shall be maintained at the site to handle emergency situations until concrete or backfill is placed. C. Unauthorized excavations for footings shall be filled with concrete to required elevations, unless other methods of filling are authorized by ENGEO. 6264.3.002.01 April 21, 2004 7 ENGEO INCORPORATED D. Excavated earth material which is suitable for engineered fill or backfill, as determined by ENGEO, shall be conditioned for reuse and properly stockpiled for later filling and backfilling operations as specified under Section 2.02, "Soil Materials." E. Abandoned sewers, piping, and other utilities encountered during excavating shall be removed and the resulting excavations shall be backfilled wiIh engineered fill as required by ENGEO. F. Any active utility lines encountered shall be reported immediately to the Owner's Representative and authorities involved. The Owner and proper auIhorities shall be permitted ITee access to take the measures deemed necessary to repair, relocate, or remove the obstruction as determined by Ihe responsible authority or Owner's Representative. 3.04 SUBGRADE PREPARATION A. All brush and oIher rubbish, as well as trees and root systems not marked for saving, shall be removed ITom the site and legally disposed of. B. Any existing structures, foundations, underground storage tanks, or debris must be removed &om the site prior to any building, grading, or fill operations. Septic tanks, including all drain fields and other lines, if encountered, must be totally removed. The resulting depressions shall be properly prepared and filled to Ihe satisfaction ofENGEO. C. Vegetation and organic topsoil shall be removed ITom Ihe surface upon which Ihe fill is to be placed and eiIher removed and legally disposed of or stockpiled for later use in approved landscape areas. The surface shall then be scarified to a depIh of at least eight inches until the surface is ITee ITom ruts, hummocks, or other uneven features which would tend to prevent uniform compaction by the equipment to be used. D. After the foundation for the fill has been cleared and scarified, it shall be made uniform and ITee ITom large clods. The proper moisture content must be obtained by adding water or aerating. The foundation for Ihe fill shall be compacted at the proper moisture content to a relative compaction as specified herein. 3.05 ENGINEERED FILL A. Select Material: Fill material shall be "Select" or "Imported Material" as previously specified. B. Placing and Compacting: Engineered fill shall be constructed by approved and accepted methods. Fill material shall be spread in uniform lifts not exceeding 8 inches in uncompacted thickness. Each layer shall be spread evenly, and thoroughly blade-mixed to 6264.3 .002.0 I April 21, 2004 8 ENGEO INCORPORATED obtain unifonnity of material. Fill material which does not contain sufficient moisture as specified by ENGEO shall be sprinkled with water; if it contains excess moisture it shall be aerated or blended with drier material to achieve the proper water content. Select material and water shall then be thoroughly mixed before being compacted. C. Unless otherwise specified in the Geotechnical Exploration report, each layer of spread select material shall be compacted to at least 90 percent relative compaction at a moisture content of at least three percent above the optimum moisture content. Minimum compaction in all keyways shall be a minimum of 95 percent with a minimum moisture content of at least I percentage point above optimum. D. Unless otherwise specified in the Geotechnical Exploration report or otherwise required by the local authorities, the upper 6 inches ,of engineered fill in areas to receive pavement shall be compacted to at least 95 percent relative compaction with a minimum moisture content of at least 3 percentage points above optimum. E. Testing and Observation of Fill: The work shall consist of field observation and testing to detennine that each layer has been compacted to the required density and that the required moisture is being obtained. Any layer or portion of a layer that does not attain the compaction required shall be reworked until the required density is obtained. F. Compaction: Compaction shall be by sheepsfoot rollers, multiple-wheel steel or pneumatic-tired rollers or other types of acceptable compaction equipment. Rollers shall be of such design that they will be able to compact the fill to the specified compaction. Rolling shall be accomplished while the fill material is within the specified moisture content range. Rolling of each layer must be continuous so that the required compaction may be obtained unifonnly throughout each layer. G. Fill slopes shall be constructed by overfilling the design slopes and later cutting back the slopes to the design grades. No loose soil will be pennitted on the faces of the finished slopes. H. Strippings and topsoil shall be stockpiled as approved by Owner, then placed in accordance with ENGEO's recommendations to a minimum thickness of 6 inches and a maximum thickness of 12 inches over exposed open space cut slopes which are 3: I or flatter, and track walked to the satisfaction ofENGEO. I. Final Prepared Subgrade: Finish blading and smoothing shall be perfonned as necessary to produce the required density, with a unifonn surface, smooth and true to grade. 6264.3 .002.0 I April 21, 2004 9 ENGEO INCORPORATED 3.06 BACKFILLING A. Backfill shall not be placed against footings, building walls, or other structures until approved by ENGEO. B. Backfill material shall be Select Material as specified for engineered fill. C. Backfill shall be placed in 6-inch layers, leveled, rammed, and tamped in place. Each layer shall be compacted with suitable compaction equipment to 90 percent relative compaction at a moisture content of at least 3 percent above optimum. 3.07 TRENCHING AND BACKFILLING FOR UTILITIES A. Trenching: I. Trenching shall include the removal of material and obstructions, the installation and removal of sheeting and bracing and the control of water as necessary to provide the required utilities and services. 2. Trenches shall be excavated to the lines, grades, and dimensions indicated on the Drawings. Maximum allowable trench width shall be the outside diameter ofthe pipe plus 24 inches, inclusive of any trench bracing. 3. When the trench bottom is a soft or unstable material as determined by ENGEO, it shall be made firm and solid by removing said unstable material to a sufficient depth and replacing it with on-site material compacted to 90 percent minimum relative compaction. 4. Where water is encountered in the trench, the contractor must provide materials necessary to drain the water and stabilize the bed. B. Backfilling: I. Trenches must be backfilled within 2 days of excavation to minimize desiccation. 2. Bedding material shall be sand and shall not extend more than 6 inches above any utility lines. 3. Backfill material shall be select material. 6264.3.002.01 April 21, 2004 10 ENGEO INCORPORATED 4. Trenches shall be backfilled as indicated or required and compacted with suitable equipment to 90 percent minimum relative compaction at the required moisture content. 3.08 SUBDRAINS A. Trenches for subdrain pipe shall be excavated to a minimum width equal to the outside diameter of the pipe plus at least 12 inches and to a depth of approximately 2 inches below the grade established for the invert of the pipe, or as indicated on the Drawings. B. The space below the pipe invert shall be filled with a layer of Class 2 permeable material, upon which the pipe shall be laid with perforations down. Sections shall be joined as recommended by the pipe manufacturer. C. Rocks, bricks, broken concrete, or other hard material shall not be used to give intermediate support to pipes. Latge stones or other hard objects shall not be left in contact with the pipes. D. Excavations for subdrains shall be filled as required to fill voids and prevent settlement without damaging the subdrain pipe. Alternatively, excavations for subdrains may be filled with Class I permeable material (as defined in Section 2.06) wrapped in Filter Fabric (as defined in Section 2.05). 3.09 AGGREGATE DRAINAGE FILL A. ENGEO shall approve finished subgrades before aggregate drainage fill is installed. B. Pipes, drains, conduits, and any other mechanical or electrical installations shall be in place before any aggregate drainage fill is placed. Backfill at walls to elevation of drainage fill shall be in place and compacted. C. Aggregate drainage fill under slabs and concrete paving shall be the minimum uniform thickness after compaction of dimensions indicated on Drawings. Where not indicated, minimum thickness after compaction shall be 4 inches. D. Aggregate drainage fill shall be rolled to fOlm a well-compacted bed. E. The finished aggregate drainage fill must be observed and approved by ENGEO before proceeding with any subsequent construction over the compacted base or fill. 6264.3.002.01 April 21, 2004 II ENGEO INCORPORATED 3.10 SAND CUSHION A. A sand cushion shall be placed over the vapor retarder membrane under concrete slabs on grade. Sand cushion shall be placed in uniform thickness as indicated on the Drawings. Where not indicated, the thickness shall be 2 inches. 3.11 FINISH GRADING A. All areas must be finish graded to elevations and grades indicated on the Drawings. In areas to receive topsoil and landscape planting, fmish grading shall be performed to a uniform 6 inches below the grades and elevations indicated on the Drawings, and brought to final grade with topsoil. 3.12 DISPOSAL OF WASTE MATERIALS A. Exce'ss earth materials and debris shall be removed ITom the site and disposed of in a legal manner. Location of dump site and length of haul are the Contractor's responsibility. 6264.3.002.01 April 21, 2004 12 ENGEO INCORPORATED PART II - GEOGRID SOIL REINFORCEMENT I. DESCRIPTION: Work shall consist of furnishing geogrid soil reinforcement for use in construction of reinforced soil slopes and retention systems. 2. GEOGRID MATERIAL: 2.1 The specific geogrid material shall be preapproved by ENGEO. 2.2 The geogrid shall be a regular network of integrally connected polymer tensile elements with aperture geometry sufficient to permit significant mechanical interlock with the surrounding soil or rock. The geogrid structure shall be dimensionally stable and able to retain its geometry under construction stresses and shall have high resistance to damage during construction, to ultraviolet degradation, and to all forms of chemical and biological degradation encountered in the soil being reinforced. 2.3 The geogrids shall have an Allowable Strength (T.) and Pullout Resistance, for the soil type(s) indicated, as listed in Table I. 2.4 Certifications: The Contractor shall submit a manufacturer's certification that the geogrids supplied meet the respective index criteria set when geogrid was approved by ENGEO, measured in full accordance with all test methods and standards specified. In case of dispute over validity of values, the Contractor will supply test data !Tom an ENGEO-approved laboratory to support the certified values submitted. 3. CONSTRUCTION: 3.1 Delivery, Storage, and Handling: Contractor shall check the geogrid upon delivery to ensure that the proper material has been received. During all periods of shipment and storage, the geogrid shall be protected ITom temperatures greater than 140 of, mud, dirt, dust, and debris. Manufacturer's recommendations in regard to protection ITom direct sunlight must also be followed. At the time of installation, the geogrid will be rejected if it has defects, tears, punctures, flaws, deterioration, or damage incurred during manufacture, transportation, or storage. If approved by ENGEO, torn or punctured sections may be repaired by placing a patch over the damaged area. Any geogrid damaged during storage or installation shall be replaced by the Contractor at no additional cost to the owner. 6264.3.002.01 April 21, 2004 13 ENGEO INCORPORATED 3.2 On-Site Representative: Geogrid material suppliers shall provide a qualified and experienced representative on site at the initiation of the project, for a minimum of three days, to assist the Contractor and ENGEO personnel at the start of construction. If there is more than one slope on a project, this criterion will apply to construction of the initial slope only. The representative shall also be available on an as-needed basis, as requested by ENGEO, during construction ofthe remaining slope(s). 3.3 Geogrid reinforcement may be joined with mechanical connections or overlaps as recomm~nded and approved by the Manufacturer. Joints shall not be placed within 6 feet of the slope face, within 4 feet below top of slope, nor horizontally or vertically adjacent to another joint. 3.4 Geogrid Placement: The geogrid reinforcement shall be installed in accordance with the manufacturer's recommendations. The geogrid reinforcement shall be placed within the layers of the compacted soil as shown on the plans or as directed. The geogrid reinforcement shall be placed in continuous longitudinal strips in the direction of main reinforcement. However, if the Contractor is unable to complete a required length with a single continuous length of geogrid, a joint may be made with the Manufacturer's approval. Only one joint per length of geogrid shall be allowed. This joint shall be made for the full width of the strip by using a similar material with similar strength. Joints in geogrid reinforcement shall be pulled and held taut during fill placement. Adjacent strips, in the case of 100 percent coverage in plan view, need not be overlapped. The minimum horizontal coverage is 50 percent, with horizontal spacings between reinforcement no greater than 40 inches, Horizontal coverage of less than 100 percent shall not be allowed unless specifically detailed in the construction drawings. Adjacent rolls of geogrid reinforcement shall be overlapped or mechanically connected where exposed in a wrap around face system, as applicable. The Contractor may place only that amount of geogrid reinforcement required for immediately pending work to prevent undue damage. After a layer of geogrid reinforcement has been placed, the next succeeding layer of soil shall be placed and compacted as appropriate. After the specified soil layer has been placed, the next geogrid reinforcement layer shall be installed. The process shall be repeated for each subsequent layer of geogrid reinforcement and soil. Geogrid reinforcement shall be placed to lay flat and pulled tight prior to backfilling. After a layer of geogrid reinforcement has been placed, suitable means, such as pins or small piles of soil, shall be used to hold the geogrid reinforcement in position until the subsequent soi layer can be placed. 6264.3.002.01 April 21, 2004 14 ENGEO INCORPORATED Under no circumstances shall a track-type vehicle be allowed on the geogrid reinforcement before at least six inches of soil have been placed. Turning of tracked vehicles should be kept to a minimum to prevent tracks ftom displacing the fill and the geogrid reinforcement. If approved by the Manufacturer, rubber-tired equipment may pass over the geosynthetic reinforcement at slow speeds, less than 10 mph. Sudden braking and sharp turning shall be avoided. During construction, the surface of the fill should be kept approximately horizontal. Geogrid reinforcement shall be placed directly on the compacted horizontal fill surface. Geogrid reinforcements are to be placed within three inches of the design elevations and extend the length as shown on the elevation view unless otherwise directed by ENGEO. Correct orientation of the geogrid reinforcement shall be verified by ENGEO. Table I Allowable Geogrid Strength With Various Soil Types For Geosynthetic Reinforcement In Mechanically Stabilized Earth Slopes (Geogrid Pullout Resistance and Allowable Strengths vary with reinforced backfill used due to soil anchorage and site damage factors. Guidelines are provided below.) MINIMUM ALLOW ABLE STRENGTH, T. (Iblft)* SOIL TYPE GEOGRlD GEOGRlD GEOGRlD Type I Type II Type III A. Gravels, sandy gravels, and gravel-sand-silt 2400 4800 7200 mixtures (GW, GP, GC, GM & SP)** B, Well graded sands, gravelly sands, and sand-silt 2000 4000 6000 mixtures (SW & SM)** C. Silts, very fme sands, clayey sands and clayey 1000 2000 3000 silts (SC & ML)** D. Gravelly clays, sandy clays, silty clays, and 1600 3200 4800 lean clays (CL)** * All partial Factors of Safety for reduction of design strength are included in listed values. Additional factors of safety may be required to further reduce these design strengths based on site conditions. ** Unified Soil Classifications, 6264.3.002.01 April 21, 2004 15 ENGEO INCORPORATED PART ill - GEOTEXTILE SOIL REINFORCEMENT I. DESCRIPTION: Work shall consist of furnishing geotextile soil reinforcement for use in construction of reinforced soil slopes. 2. GEOTEXTILE MATERIAL: 2.1 The specific geotextile material and supplier shall be preapproved by ENGEO. 2.2 The geotextile shall have a high tensile modulus and shall have high resistance to damage during construction, to ultraviolet degradation, and to all forms of chemical and biological degradation encountered in the soil being reinforced. 2.3 The geotextiles shall have an Allowable Strength (T.) and Pullout Resistance, for the soil type(s) indicated as listed in Table II. 2.4 Certification: The Contractor shall submit a manufacturer's certification that the geotextiles supplied meet the respective index criteria set when geotextile was approved by ENGEO, measured in full accordance with all test methods and standards specified. In case of dispute over validity of values, the Contractor will supply the data ITom an ENGEO-approved laboratory to support the certified values submitted. 3. CONSTRUCTION: 3.1 Delivery, Storage and Handling: Contractor shall check the geotextile upon delivery to ensure that the proper material has been received. During all periods of shipment and storage, the geotextile shall be protected ITom temperatures greater than 140 of, mud, dirt, dust, and debris. Manufacturer's recommendations in regard to protection ITom direct sunlight must also be followed. At the time of installation, the geotextile will be rejected if it has defects, tears, punctures, flaws, deterioration, or damage incurred during manufacture, transportation, or storage. If approved by ENGEO, torn or punctured sections may be repaired by placing a patch over the damaged area. Any geotextile damaged during storage or installation shall be replaced by the Contractor at no additional cost to the owner. 6264.3.002.01 April 21, 2004 16 ENGEO INCORPORATED 3.2 On-Site Representative: Geotextile material suppliers shall provide a qualified and experienced representative on site at the initiation of the project, for a minimum of three days, to assist the Contractor and ENGEO personnel at the start of construction. If there is more than one slope on a project, this criterion will apply to construction of the initial slope only. The representative shall also be available on an as-needed basis, as requested by ENGEO, during construction of the remaining slope(s). 3.3 Geotextile Placement: The geotextile reinforcement shall be installed in accordance with the manufacturer's recommendations. The geotextile reinforcement shall be placed within the layers of the compacted soil as shown on the plans or as directed. The geotextile reinforcement shall be placed in continuous longitudinal strips in the direction of main reinforcement. Joints shall not be used with geotextiles. Adjacent strips, in the case of 100 percent coverage in plan view, need not be overlapped. The minimum horizontal coverage is 50 percent, with horizontal spacings between reinforcement no greater than 40 inches. Horizontal coverage of less than 100 percent shall not be allowed unless specifically detailed in the construction drawings. Adjacent rolls of geotextile reinforcement shall be overlapped or mechanically connected where exposed in a wrap around face system, as applicable. The Contractor may place only that amount of geotextile reinforcement required for immediately pending work to prevent undue damage. After a layer of geotextile reinforcement has been placed, the succeeding layer of soil shall be placed and compacted as appropriate. After the specified soil layer has been placed, the next geotextile reinforcement layer shall be installed. The process shall be repeated for each subsequent layer of geotextile reinforcement and soil. Geosynthetic reinforcement shall be placed to lay flat and be pulled tight prior to backfilling. After a layer of geotextile reinforcement has been placed, suitable means, such as pins or small piles of soil, shall be used to hold the geotextile reinforcement in position until the subsequent soil layer can be placed. Under no circumstances shall a track-type vehicle be allowed on the geotextile reinforcement before at least six inches of soil has been placed. Turning of tracked vehicles should be kept to a minimum to prevent tracks ITom displacing the fill and the geotextile reinforcement. If approved by the Manufacturer, rubber-tired equipment may pass over the geotextile reinforcement as slow speeds, less than 10 mph. Sudden braking and sharp turning shall be avoided. 6264.3.002.01 April 21, 2004 17 ENGEO INCORPORATED During construction, the surface of the fill should be kept approximately horizontal. Geotextile reinforcement shall be placed directly on the compacted horizontal fill surface. Geotextile reinforcements are to be placed within three inches of the design elevations and extend the length as shown on the elevation view unless otherwise directed by ENGEO. Correct orientation ofthe geotextile reinforcement shall be verified by ENGEO. Table II Allowable GeotextiIe Strength With Various Soil Types For G....synthetic Reinforcement In Mechanically Stabilized Earth Slopes (Geotextile Pullout Resistance and Allowable Strengths vary with reinforced'backfill used due to soil anchorage and site damage factors. Guidelines are provided below,) MINIMUM ALLOW ABLE STRENGTH, T, (lb/ft)* SOIL TYPE GEOTEXTlLE GEOTEXTlLE GEOTEXTlLE Type I Type II Typem A. Gravels, sandy gravels, and gravel-sand-silt 2400 4800 7200 mixtures (GW, GP, GC, GM & SP)** B, Well graded sands, gravelly sands, and 2000 4000 6000 sand-silt mixtures (SW & SM)** C. Silts, very fme sands, clayey sands and 1000 2000 3000 clayey silts (SC & ML)** D. Gravelly clays, sandy clays, silty clays, 1600 3200 4800 and lean clays (CL)* * * All partial Factors of Safety for reduction of design strength are included in listed values. Additional factors of safety may be required to further reduce these design strengths based on site conditions. ** Unified Soil Classifications. 6264.3.002.01 April 21, 2004 18 ENGEO INCORPORATED PART IV - EROSION CONTROL MAT OR BLANKET I. DESCRIPTION: Work shall consist of furnishing and placing a synthetic erosion control mat and/or degradable erosion control blanket for slope face protection and lining of runoff channels. 2. EROSION CONTROL MATERIALS: 2.1 The specific erosion control material and supplier shall be pre-approved by ENGEO. 2.2 Certification: The Contractor shall submit a manufacturer's certification that the erosion mat/blanket supplied meets the criteria specified when the material was approved by ENGEO. The manufacturer's certification shall include a submittal package of documented test results that confirm, the property values. In case of a dispute over validity of values, the Contractor will supply property test data ITom an ENGEO-approved laboratory, to support the certified values submitted. Minimum average roll values, per ASTM D 4759, shall be used for conformance determinations. 3. CONSTRUCTION: 3.1 Delivery, Storage, and Handling: Contractor shall check the erosion control material upon delivery to ensure that the proper material has been received. During all periods of shipment and storage, the erosion mat shall be protected ITom temperatures greater than 140 of, mud, dirt, and debris. Manufacturer's recommendations in regard to protection ITom direct sunlight must also be followed. At the time of installation, the erosion mat/blanket shall be rejected if it has defects, tears, punctures, flaws, deterioration, or damage incurred during manufacture, transportation, or storage. If approved by ENGEO, torn or punctured sections may be removed by cutting OUT a section of the mat. The remaining ends should be overlapped and secured with ground anchors. Any erosion mat/blanket damaged during storage or installation shall be replaced by the Contractor at no additional cost to the Owner. 3.2 On-Site Representative: Erosion control material suppliers shall provide a qualified and experienced representative on site, for a minimum of one day, to assist the Contractor and ENGEO personnel at the start of construction. If there is more than one slope on a project, this criteria will apply to construction of the initial slope only. The representative shall be available on an as-needed basis, as requested by ENGEO, during construction of the remaining slope(s). 6264.3.002.01 April 21, 2004 19 ENGEO INCORPORATED 3.3 Placement: The erosion control material shall be placed and anchored on a smooth graded, firm surface approved by the Engineer. Anchoring terminal ends of the erosion control material shall be accomplished through use of key trenches. The material in the trenches shall be anchored to the soil on maximum I Y, foot centers. Topsoil, if required by construction drawings, placed over final grade prior to installation of the erosion control material shall be limited to a depth not exceeding 3 inches. 3.4 Erosion control material shall be anchored, overlapped, and otherwise constructed to ensure performance until vegetation is well established. Anchors shall be as designated on the construction drawings, with a minimum of 12 inches length, and shall be spaced as designated on the construction drawings, with a maximum spacing of 4 feet. 3.5 Soil Filling: If noted on the construction drawings, the erosion control mat shall be filled with a fine grained topsoil, as recommended by the manufacturer. Soil shall be lightly raked or brushed on/into the mat to fill the mat voids or to a maximum depth of I inch. 6264.3.002.01 April 21, 2004 20 ENGEO INCORPORATED PART V - GEOSYNTHETIC DRAINAGE COMPOSITE 1. DESCRIPTION: Work shall consist of furnishing and placing a geosynthetic drainage system as a subsurface drainage medium for reinforced soil slopes. 2. DRAINAGE COMPOSITE MATERIALS: 2.1 The specific drainage composite material and supplier shall be preapproved by ENGEO. 2.2 The drain shall be of composite construction consisting of a supporting structure or drainage core material surrounded by a geotextile. The geotextile shall encapsulate the drainage core and prevent random soil intrusion into the drainage structure. The drainage core material shall consist of a three dimensional polymeric material with a structure that pennits flow along the core laterally. The core structure shall also be constructed to pennit flow regardless of the water inlet surface. The drainage core shall provide support to the geotextile. The fabric shall meet the minimum property requirements for filter fabric listed in Section 2.05C of the Guide Earthwork Specifications. 2.3 A geotextile flap shall be provided along all drainage core edges. This flap shall be of sufficient width for sealing the geotextile to the adjacent drainage structure edge to prevent soil intrusion into the structure during and after installation. The geotextile shall cover the full length of the core. 2.4 The geocomposite core shall be furnished with an approved method of constructing and connecting with outlet pipes or weepholes as shown on the plans. Any fittings shall allow entry of water ftom the core but prevent intrusion of backfill material into the core material. 2.5 Certification and Acceptance: The Contractor shall submit a manufacturer's certification that the geosynthetic drainage composite meets the design properties and respective index criteria measured in full accordance with all test methods and standards specified. The manufacturer's certification shall include a submittal package of documented test results that confinn the design values. In case of dispute over validity of design values, the Contractor will supply design property test data ftom an ENGEO-approved laboratory, to support the certified values submitted, Minimum average roll values, per ASTM D 4759, shall be used for detennining confonnance. 6264.3.002.01 April 21, 2004 21 ENGEO INCORPORATED 3. CONSTRUCTION: 3.1 Delivery, Storage, and Handling: Contractor shall check the geosynthetic drainage composite upon delivery to ensure that the proper material has been received. During all periods of shipment and storage, the geosynthetic drainage composite shall be protected ftom temperatures greater than 140 of, mud, dirt, and debris. Manufacturer's recommendations in regards to protection &om direct sunlight must also be followed. At the time of installation, the geosynthetic drainage composite shall be rejected if it has defects, tears, punctures, flaws, deterioration, or damage incurred during manufacture, transportation, or storage. If approved by ENGEO, tom or punctured sections may be removed or repaired. Any geosynthetic drainage composite damaged during storage or installation shall be replaced by the Contractor at no additional cost to the Owner. 3.2 On-Site Representative: Geosynthetic drainage composite material suppliers shall provide a qualified and experienced representative on site, for a minimum of one half day, to assist the Contractor and ENGEO personnel at the start of construction with directions on the use of drainage composite. If there is more than one application on a project, this criterion will apply to construction ofthe initial application only. The representative shall also be available on an as-needed basis, as requested by ENGEO, during construction of the remaining applications. 3.3 Placement: The soil surface against which the geosynthetic drainage composite is to be placed shall be &ee of debris and inordinate irregularities that will prevent intimate contact between the soil surface and the drain. 3.4 Seams: Edge seams shall be formed by utilizing the flap of the geotextile extending &om the geocomposite's edge and lapping over the top of the fabric of the adjacent course. The fabric flap shall be securely fastened to the adjacent fabric by means of plastic tape or non- water-soluble construction adhesive, as recommended by the supplier. Where vertical splices are necessary at the end of a geocomposite roll or panel, an 8-inch-wide continuous strip of geotextile may be placed, centering over the seam and continuously fastened on both sides with plastic tape or non-water-soluble construction adhesive. As an alternative, rolls of geocomposite drain material may be joined together by turning back the fabric at the roll edges and interlocking the cuspidations approximately 2 inches. For overlapping in this manner, the fabric shall be lapped and tightly taped beyond the seam with tape or adhesive. Interlocking of the core shall always be made with the upstream edge on top in the direction of water flow. To prevent soil intrusion, all exposed edges of the geocomposite drainage core edge must be covered. Alternatively, a 12-inch-wide strip of fabric may be utilized in the same manner, fastening it to the exposed fabric 8 inches in &om the edge and folding the remaining flap over the core edge. 6264.3 .002.0 I April 21, 2004 22 ENGEO INCORPORATED 3.5 Soil Fill Placement: Structural backfill shall be placed immediately over the geocomposite drain. Care shall be taken during the backfill operation not to damage the geotextile surface of the drain. Care shall also be taken to avoid excessive settlement of the backfill material. The geocomposite drain, once installed, shall not be exposed for more than seven days prior to backfilling. 6264.3.002.0 I April 21, 2004 23 APPENDIX F Environmental Site Assessment ~" ~~ ~§ 1.š1rq ~~ .~.g ~ 88 pUt ~ >oãl i~ I"; '111 ~ ~'EP .Ë.;¡~ ~ ~ . 0 ¡ffJ¡ ! Uttf .,;, ~ ~ e ~ '" Ii · ~ .s>'\1~ l ~§i' I' ~ N ,; ~ 'õ lfo:g 0 ~ ¡¡s"- "i ~1! " !:i! ~, ~ "' !!.sl] "5'§ê ~ ~ t ~ i ~ ~ JJi~ ~~~ "S ~<; ~ H ~ ~ h ~ ~~i ~ ' ~ ,..~ "' Hdj ¡¡~ Æ r-Ðj~å · . " i ~ " ð! "TJiOij II ~ t] ~! :U~ ~ 'Ef¡¡ ~ -.,; a . I ...2h · .< ~] o . JJ :2d ~l JUp ,. O~ ",,- .,;" >. ] ~ð o· t ¡¡¡ þ- ~ .... ;.<:1..2 ~ '1M ~ô .g ;.s &1 ~ -~ ~.~ .sH~! 1hJJ ~ w: s .'~~ ~ n~~ ~H! ~ ",0", .8 .. ~ ~ ~¡ 3 . .s .< ...v [ ~~>. " 0 ~ ¡f~v rhff .~ iF:'~ 8 . ~ tJ ~ N ~.d¡¡: § Ò ~ ~ ~ 1- ~.~ ß ô ~2~ª ¡¡ ~ ~Uni 0] -oJ.. ~ I N o IIi ~ '2 :>:"'Po !J'¡¡,~i '=0 g :g' ø ~ ~]~ J¡- ~~SCl) ~ ~" ¡ LlJ~ '" Q .$ .~ ~ "' J'" E "'''' '" :s Q 0 U :s ~ ìö ~~ I: Q 8 ~ '" ... <!i '" 5 "' E ~ ... N ;]13 '" ~ ~ i :;: ¡¡[ ~ ~ ~ '" ~!ž '" :; :; ~ ~ > ð ~ ... ð ei;] '" ~ ~'" õ õ z ~ ~ ",¡:j <!i <!i "' 0 i §~ .. ti "' ~ s '" 0 ~ ..", B ... ~ õl: 0'" Po :.; I~~~ ~~~i "~o8 ~~~~ ~~I::~ :i~>-", E~~~ ~.. e~~~ ;un ~§:I~ ~~~~i 6264.3.001.01 April 20. 2004 6264.3.001.01 April 20, 2004 SELECTED REFERENCES LIST OF FIGURES APPENDIX A - Environmental Data Resources. Inc. APPENDIX B - Sequoia Analytical Test Results Radius Map Report Finch Avenue. See Figure current SCVWD easement. SITE RECONNAISSANCE Site Reconnaissance ..... Adjoining Properties .. ADDITIONAL STUDIES .. Agrichemical Impact Analysis. Sampling Activities... Sample Analysis .............. SUMMARY AND CONCLUSIONS LIMITATIONS AND UNIFORMITY OF CONDITIONS Historically. Calabazas Creek, flowing from south to north, was a meandering creek extending aaoss the Site. Since 1978. the creek has been realigned so that it flows under the southern portion of the Site through a concrete culvert and then continues north as an open channel. defining the western Site boundary near the empty office complex. It is believed that the underground culvert follows the Santa Clara Valley Water District (SCVWD) Easement 2 for the approximate which extends along location of the old creek channel location and the PROPERTY DESCRIPTION. PREVIOUS ENVIRONMENTAL REPORTS... Phase I Environmental Site Assessment of Building CAC04, Located at 19191 Val1co Parkway, Cupertino. CA (SECOR International Inc. February 12, 2004).. ' Phase 1 Environmental Site Assessment and Soil Quality Evaluation, Finch Avenue Parcel. Cupertino, CA (Lowney Associates, December 1,2000) ...... SUPPLEMENTAL RECORDS RESEARCH (ENGEO). Federal Record Sources... Subject Site.......... Other Properties... State Record So\U'ceS... Subject Site.. Other Properties .. Local Record SoW"ceS Subject Site........ Other-Properties t2 t2 4 5 5 5 6 ,3 ...5 ...5 ...7 ..,7 ...8 ,10 .10 ,11 .11 .11 .2 ~ .......1 .......2 The portion of the Site lying west of Finch Avenue contains low-lying native grasses and some areas of remnant parking. The portion of the Site lying east of Finch Avenue and south of Vallco Parkway contains low-lying native grasses. bare growid and a nwnber of scattered trees. Rows of stwnps are located within the eastern half of this portion of the Site. The northern portion of the Site. across Vallco Parkway, consists of an empty 2-story office building with appurtenant parking and landscape trees. (Figure I) IS shape Stevens the SQuth, 280 (Junipero Serra Freeway) to the north and Tantau Avenue to the east. The western boundary is roughly 300 feet west of Finch Avenue, which crosses the Site in a north-south direction for the southern portion of the Site, and the Calabazas Creek for the northern portion of the Site. Vallco Parkway separates the northern and southern portions of the site. The Site includes Assessor's Parcel Numbers (APN) 316-20-074 (7.97 acres), 316-20"()78 (6.00 acres), 316-20-079 (50455 acres) and 316-20..()85 (5.95 acres) (Figure 2). The approximately 25.4-acre subject site and generally bounded by lITegularin Highway Site) located in Cupertino Creek Boulevard to Letter of Transmittal TABLE OF CONTENTS EM3EO PROPERTY DESCRIPTION EM3EO EM3EO INCORP According to intervie~ conducted, hazardous materials or petroleum substances that were stored on site had been properly removed and a closure permit was issued by the Santa Clara County Fire Department (SCCFD). Tbe mechanical room which housed the bazardous materials had no indication of spills or releases. An above~ground storage tank (AST) containing diesel fuel was observed to have minor staining on the underlying concrete pad. The concrete chiller pad had no indications of staining. Based on a database search pcrformed by Environmental Data Resources (EDR), SECOR found no indications of recognized environmenta1 conditions related to the site and found no nearby sites listed in the database search report which were expected to have adversely impact the site. SECOR recommended that any suspect asbestos containing material be formaHy assessed by a certified asbestos consultant prior to any renovation or demolition that may disturb such materials. Based on the findings of the site assessment, SECOR did not reveal evidence of recognized environmental conditions in connection with the site. Phase I Environmental Site Assessment and Soil OuaIitv Evaluation Finch Avenue Parcel Cunertino CA a..ownev Associates December 1 2000) A phase one environmental site assessment for the western portion of the Site (APN 316-20-085) was completed ~ December 1,2000, by Lowney Associates. The scope of work included: · Site Reconnaissance · Review of readily available topographic maps and reports · Review of readily available documents, maps and aerial photographs · Review ofa regulatory agency database report · Review of available regulatory agency files · Collection and laboratory analysis of selected near-surface soil sample: 6264.3.001.01 April 20, 2004 EM3EO PREVIOUS ENVIRONMENTAL REPORTS Site Th, o CA A phase one environmental site assessment for the northern portion of the (APN 316-20-074) was completed on February 12,2004, by SECOR International, Inc. scope of work included: CU' Histerical inforrnation review Regulatory agencies record review Hewlett Packard (HP) file review Site reconnaissance Interviews Preparation of final report complex, owned by Hewlett-Packard (HP), and last used in 2002 for office ......u is located on the site. The building contains approximately 200 rooms, air atrium in the center. An outdoor tennis court is located on the · · · · · · A two-story office space by Commerce ........_, an elevator and an northwestern comer of the building. The building is sWTounded bya"':grade asphalt parking with landscaped medians. A backup generator, above-ground diesel storage tank and an electrical transfonner are located on a concrete pad near the northeastern comer of the building. In front of the generator is a concrete chiller pad surrounded by a chain-link fence. Based on historical records reviewed by SECOR, the site was used for agricultural purp.oses (apparently orchards) up until 1980. In 1978, Calabazas Creek was rerouted to the current location and the office complex was completed after 1980. The neighboring property directly south of the site across Val1ce Parkway was used as an orchard up until at least 1982. 2 6264.3.001.01 April 20, 2004 6264.3.001.01 April 20,2004 Lowney further recommended that if anyon-site agricultural wells are encountered, that they be properly abandoned in accordance with Santa Clara Valley Water District (SCVWD) requirements. Based on the information obtained by Lowney in the study, no hazardous materials incidents had been reported in the site vicinity that were considered likely to significantly impact the site. 4 The mean concentration of lead in the soil was found to be 22 ppm and the mean concentration of arsenic was found to bel2.7 ppm. Mercury was not detected above the laboratory reporting limit of 0.05 ppm. Trace levels ofDDT, DDE and DDD were also found in the site soils. Based on these findings, Lowney recommended that the levels of arsenic be further assessed by comparing the site levels with background concentrations in the area, and conducting a health risk based assessment to evaluate the potential risk of arsenic to future residents. In lieu of this additional work, Lowney recommends a 2-foot cap of clean soil be placed over areas of the site where soil will be exposed. According to tùstorical aerial photos reviewed by Lowney, the parcel consisted of an orchard until at least 1973. No sttuctures were indicated to have ever been located on the site. Based on the past use of the site, Lowney conducted a shallow soil quality evaluation to test for residual pesticides and metals in the near-surface: soil. Eight soil samples were collected and submitted to the laboratory for analysis of Organochlorine Pesticides and the pesticide-related metals, mercury, arsenic and lead. The majority of the parcel IS undeveloped open space, except for their site reconnaissance, Lowney observed several pipes protruding locations, but did not determine the purpose of these pipes. an area of paved parking. During ftom the ground in various EN3EO EN3EO INCORP SUPPLEMENTAL RECORDS RESEARCH (ENGEO) For the purpose of ttùs Modified Environmental Site Assessment Update, Environmental Data Resources, Inc. (EDR) perfonned a search of federal, state and local agency databases regarding the Site and known contaminated sites in the immediate vicinity. The databases searched are presented and described below. Fecternl Record Sources The following is a summary offecteral databases reviewed by EDR: · NFL - National Priority List - The National Priority List (Supemmd) identifies over 1,200 sites for priority cleanup under the Superfund program. · Proposed NFL Sites - Provides a list of sites that are under consideration for inclusion on the NPL. · CERCLIS - Comprehensive Environmental Response, Compensation, "'. Liability Infonnation System - CERCLIS contains data on XItentially hazardous waste sites that have been reported to the USEPA by states. municipalities, private companies, and private persons, pursuant to Section 103 .of the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA). CERCLIS contains sites which are either proposed to be on or on the National Priority List (NPL) and sites which are in the screening and assessment phase for possible inclusion on the NPL. · CERCLIS-NFRAP - CERCLIS No Further Remedial Action Planned - As of February 1995, CERCLIS sites designated "No Further Remedial Action Planned" (NFRAP) have been removed from CERCLlS. NFRAP sites may be sites where, following an initial investigation, no contamination was found., contamination was removed quickly without the need for the site to be placed on the NfL, or the contamination was not serious enough to require Federal Superfund action or NPL consideration. · CQRRACTS - Corrective Action Report - CORRACTS identifies hazardous waste handlers with RCRA corrective action activity. 6264.3.001.01 April 20, 2004 5 ';.< .,;" "', 0 w æ ..~ "" iG ~ ~..; ." t3 "þ ~ " ~ ~ .- " 0 Î ~ ª o~å iJ :¡j¡j i ~o ¡¡ 8~ U. i;:;; I ¡¡ ~ .~ . 8 0 ~¡ · ¡"i .. 8.fu P! -8 .., g 1 0 ¡¡ . ~~ ~ .p ~ :M ci ¡; ¡¡ 0 ::§s .§ i'!' ~ ì! p~ :H,ë j~ ~ 0 . ... ca!t:..... .¡¡ 8 .~ 3 ~.... þ~ ,~ '¡¡ ~ " 'Ë~ if gs ~"-!I 10'" '" ~.~~ .¡j~ ~... ~ ~ ~ ~ U 'q 88 ;.g 8.E I;:sä a. oS § ~ ä[ ,S~ ¡q ~j , 1! ~ §. ,:¡ 8 ~ ~-~.: ." "'..@. it ~ ..: 'Ë ~ ,." .¡jo ~];:¡ ,¡¡ · ~ ~ -" ~] ð>l< H ._~ ~ ~ :§ ~ ~ ~ 1;10 &Jon ¿j:§ H~ ;:¡ 0 ;;;¡t 0 :!ì .S; . 0 :¡- ";:¡.¡¡- if ~5 i ~1 1! þ !;¡, ~ "'~ · . 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HH j _.0 .~ 8.~ ø::r;::: t~ z~ ]~ci -" o·~ ~3i'" ~.;: §.,g 0' 00 ;:J8~ ~ ~ 0 .,,¡¡ ,,, ;~.~ P ]"0 'Q 'IÃ~ o 0 ø:: G ... ~~ :>!ä g · . .. ~ =~ "':§ ~]~ · q ~Ii - 0 ~ .5 ~ ~ 8 . § !!,3 jJ! :-a.! I € p.,~ ~B-s 'þ fil8 ~§'i3 ~¡::"O ~ Jj- ~'B I .~ :E,~ !ä Hn -~ ~ . . . l'l:I~ æ-s go "'~ , 00 'I ....M I u·- .!!~ -0 ~p '1! I§~ . f!¡b VlVI-g ~.. ~f ..J ~"," -N ~~ ~ 0 ~¡; q~ go" B ,¡¡ H @n o ~ ffi 0 ~H ~8 ~~ ~ § .~~ e- " .~ ";N ø::~.g u~ ......~ 6 s/86 u.o ~i · . !;J", 6264.3.001.01 April 20, 2004 \VMUDS/SWAT - Waste Management Unit Database - Used by State Water Resources Control Board staff and Regional Water Quality Control Boards for program tracking and inventory of waste management units. 8 6264.3.001.01 April 20, 2004 SCH - School Property Evaluation Program - This category contains proposed and existing school sites that are being evaluated by DTSC for possible hazardous materials contamination. In some cases, these properties may be listed in the CAL~SITES category depending on the level of threat to public health and safety or the environment they pose. 9 . SWFILF SWIS) - Solid Waste Information System - Active, closed and inactive landfills. . DEED - List of Deed Restrictions - A database of deed·resnicted properties DTSC CA WDS - requirements. maintained by TOXIC PITS - Toxic Pits Cleanup Act Sites - Identifies sites suspected hazardous substances where cleanup has not yet been completed. NOTIFY 65 - Proposition 65 Records - Contains facility notifications regarding known releases that could impact drinking water and thereby expose the public to a potential health risk. of containing Waste Discharge System CLEANERS - Dry Cleaner Facilities - A list of dry EP A ID numbers. Specific criteria for the subject facilities database. Sites that have bee. cleaner facilities that have warrant inclusion on this issued waste discharge CORTESE - "Cortese" Hazardous Waste and Substances Sites List - Listed sites are designated by the State Water Resources Control Board (LUST), the Integrated Waste Board (SWFILF), and the Department ofToxic Substances Control (CaI-Sites). AST - Above-ground Petroleum Storage tmks. Tank Facilities - Registered aboveground :torage CHMIRS - California Hazardous Materials Infonnation information on reported hazardous materials incidents. Reporting System Contains HIST UST - Hazardous Substance Storage Container Database - A historical listing of UST sites. CAL-SITES - Contains potential or confirmed hazardous substance release properties. CA FID - Facility Inventory Database - An historical listing of active and underground storage tank locations from the State Water Resource Control Board. inactive AWP - Annual Workplan Sites cleanup. The following is a summary of state databases reviewed Identifies known hazardous by EDR. substance sites targeted fo< INDIAN UST - Underground Storage Tanks on Indian Land - A list of UST facilities gathered from Region 9 of the Regional Water Quality Control Board. VCP - Voluntary Cleanup Program- Contains low threat level properties with either confirmed or unconfumed releases and the project proponents have requested that DTSC oversee investigation and/or cleanup activities and have agreed to provide coverage for DTSC's costs. State Record Sources facility would not be expected to impact the Site. Further details regarding this facility are located in Appendix A. Given the available database infonnation, the remaining properties listed on the above databases would not be expected to impact the Site. CA UST - Active UST Facilities - A list of regulatory agencies. CA BOND EXP. PLAN - Bond Expenditure Plan - A site-specific expenditure plan used as the basis for an appropriation of Hazardous Substance Cleanup Bond Act funds. This has been superceded by the Annual Work Plan (AWP) active UST facilities gathered from local property IS approximately three quarters of a mile northeast of the Site. Given the regional direction of groundwater flow towards the San Francisco Bay and the distance from the Site, this LUST - Leaking Underground Storage Tank Information System - Contains an inventory of reported leaking underground storage tank incidents. EN3EO EN3EO EN3EO INCORP Details regarding the facilities mentioned above are provided in Appendix A. Given the available database infonnation and distances from the Site, these facilities would not be expected to impact the subject site. Local Record Sources The following is a summary oflocal databases reviewed by EDR. . San Jose Haz Mat - Database maintained by the San Jose Fire Department; the list includes sites involved with the storage and/or use of hazardous materials. . CA·SLIC - sue Region comes from the California Regional Water Quality Control Board. SubiectSite The Site is Dot listed on the above databases. Other Prooerties The following database has facilities listed within the appropriate ASTM search distance of the Site (number offacilities is reported in parentheses): . CA SLtC(2) Details regarding these facilities are provided in Appendix A. Given the available database information and the distances from the Site, these facilities would not be expected to impact the subject site. 6264.3.001.01 April 20, 2004 11 EN3EO REF - Unconfinned Properties Referred to Another Agency -This category contains properties where contamination has not been confinned and which were determined as not requiring direct DTSC Site Mitigation Program action or oversight. Accordingly these sites have been referred to another state or local regulatory agency. NF A - No Further Action Determination - This category contains properties which DTSC has made a determination that the property does not pose a problem to the environment or to public health. NFE - Properties Needing Further Evaluation - This category contains properties that are suspected of being contaminated. These are unconfinned contaminated properties that need to be assessed using PEA pr<µss. PEA In Progress indicates properties where DTSC is currently conducting a PEA Pea Required indicates properties where·DTSC has determined a PEA is required, but not CUITeDtly underway. CA SLIC - SLIC Region comes from the CaJifomia Regional Water Quality Control Board. Infonnation System - Facility and manifest data regarding HAZNET - Hazardous Waste hazardous waste shipments. Subject Site The Site is not listed cn the above databases. 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Ol.OH '110 'IO JIO \IllS . ptrO~ 1"!JJsnpu ~!ìS~ 0 oo~o-~re {9~6} XV:!- 0096-~¡:6 (9~6). tt8S6, VO 'Olu8w...:llrs . 8 811ns "OM' JQ) !JJS 8~8 0 lYto-l;6L !.LO!) XV:! . '998~-Z:6L (LOn. ts6t6 YO 'ewnl'IVd . "Q Ð\!f\S 'pAle 8MO( ::In 55t~ 0 8O£9-Z9L (90") xv:! . 0096i1lL (110,,) . LEOS6 v:> 'UlH uvð.iow . GAllO 'I^,Gr 998 &'J APPENDIX G Storm Drain and Sanitary Sewer Capacity Study I~ =.' BkF ENGINEERS SURVEYORS PLANNERS October 27, 2005 Job No, 20056051-10 Kristy Le David J, Powers and Associates 1885 The Alameda, Suite 204 San Jose, CA 95126 Subject: Calabazas Place, Cupertino Existing Storm Drain and Sanitary Sewer Capacity Study Dear Ms, Le: The following is an analysis of the existing and proposed Storm Drain and Sanitary Sewer systems at and around the proposed Calabazas Place project. The initial storm drain study performed by Mark Thomas & Company dated 06-30-1992 was used as the basis of all existing flow information. A copy of this information has been attached hereto and should be referenced while following the summaries below, Please see Exhibit C 1 for proposed tributary areas along with the proposed and existing storm drain systems. SYSTEM 5: Under the existing conditions this system is over capacitated by 2,5 cubic feet per second (cfs) between MH 4 and the Outfall!, Approximately 4.4 cfs flows from manhole (MH) 5 to MH 4, this flow will be reduced to 2,7 cfs under proposed conditions helping to remedy the downstream situation. The existing flow from MH 4 to MH 3 to MH 2 will remain unchanged. A reduction in additional flow between MH 2 and Outfall I (currently 7.8 cfs, reduced to 2.4 cfs) in conjunction with the upstream reduction between MH 5 and MH 4 results in a condition where the existing 24" storm drain line is within capacity, 18.3 cfs at the outfall. SYSTEM 6: Currently system 6 has a capacity of 9.1 cfs. Under existing conditions the existing 18" line accepts 6.1 cfs from the contributing areas. The proposed extension of this 18" line from MH 2 to MH 3(P) will see and additional flow in the amount of 3.0 cfs, bringing this system to its capacity. Parallel to system 6 we are proposing to connect a 24" storm drain line to the existing 12' x II' box culvert. This new line will accommodate AREA 3 and AREA 6 (see Exhibit CI). The flow being picked up from AREA 3 by this proposed 24" line is the remainder of the flow that over capacitated system 5. 981 Ridder Park Dr,. Suite wo San Jose California 95'3'-2305 phone 408.467.9WO fax 408,467,9199 www.bkf.cam October 27, 2005 Kristy Le Page 2 SYSTEM 7: Under the existing conditions this system is over capacitated by 4.7 cfs between MH 2 and the Outfall. Our proposed solution for this existing problem is to make a connection to the existing 12' x 11' box culvert from the existing manhole in Valko Parkway (see Exhibit CI, manhole (E)) with a 24" storm drain line. This new 24" line will accommodate the flows from AREA 7, 8 and 9 totaling 8.1 cfs, With this 8,1 cfs now flowing into the proposed 24" line the existing 30" line from MH 2 to outfall 1 will be below capacity, Plow from AREA 10 can then be added to system 7 within Valko Parkway between MH 3 and MH 2 (see Exhibit CI, manhole MH 7(P)) and not exceed the systems capacity limits. SYSTEM 47: This system between MH 7 and MH 6 has the capacity to handle 22.6 cfs. Under existing conditions this line accepts a flow of 6.7cfs. The proposed connection at MH 9(P) will add a additional flow of 2.2 cfs. SANITARY SEWER SYSTEM: Per a meeting with the Cupertino Sanitary Sewer district a majority of the existing sanitary system has capacity to accommodate the proposed project. There is a portion of the existing sewer system that may need to be upgraded as follows, see description I and 2 below. Sanitary Sewer flow testing has been requested by the City of Cupertino which will be done at a later date. 1.) It may be necessary to upgrade the existing sanitary line along the northerly parcel parallel to Interstate 280 from an 8" line to a 10" line, see Exhibit C2. This upgrade will be approximately 500' in length from MH SSI to MH SS2. 2.) It may be necessary to upgrade the existing sanitary line along Tantau Avenue from Interstate 280 to Prunridge Avenue from a 10" line to a 12" line, see Exhibit C2. This upgrade will be approximately 3000' in length from MH SS2 to MH SS3. With the proposed improvements listed above the existing storm sewer and sanitary sewer systems will have sufficient capacity to accommodate the proposed development. Very truly yours, BKFE"~~~ :j Marello roject Engineer l\Bkf-sjlvoI4\ENG05105605I\WPllO-27·05 SD SS SUMMARY LETTER,doc 1tvNE~ A~. I ~ ~§ ~ ~ '- ,t~ ~ :c- frr-s1:t1Jo/ Sf: wOo l:$.1{E.. PRt11'OS¡;Þ 5~""¡ÞR i:.nIE = ': . ~¡ T' -,,! ! ,', , 1;;;;;;;;~/': i ~ .J: . v~ ! .,(, < .. ~. ~ i o" ~..'i'~._' .~ ~. '. ,)1.- ~t¡ -/ ,- ..:,./) , ,. . ..0" =-v--- - ---;-. / ;;'7' ~ .,,-' ~II· I:...:. ·1' i '~,';.'- ~ ,J I / l '¡:; II o .II ¡'J ··11 : -, I· ,I I' I· i ¡ i ' I' i ,I, ..I, ¡¡I å r-~ : i ~' I ~-' . -, . . ..; ~.. ~ -. . _ .-~___,_ ~~~-~·:,:7"~'~::_-I~_~·;~.~~~_.~' 0 ~"c? . . ..---.--- .. - .. " .. : f,)TSr.n/ft sreflC~ ~A:J;}J l:& 1J l ; PROi'OS1=D 5rOKM DR-II!:^, L¡:''''~ STORM DRAIN ANALYSIS SYSTEM 5 MANHOLE QACT QMAX Q EXCESS Q PROPOSED=(P) FROM TO (CFS) (CFS) (CFS) (CFS) 5 4 4.4 6,4 2,7 4 3 12.0 9,1 2.9 3 2 11.4 9,1 2,3 2 1 25,1 22,6 2.S 18.3 @ OUTFALL SYSTEM 6 MANHOLE °Aer QMAX QrxcEss QPROPOSED=(P) FROM TO (CFS) (CFS) (CFS) (CFS) 3(P) 2 9,0 2 1 6,0 9,1 6(P) 5(P) 6.5 5(P) 4(P) (6~¡~9) @ OUTFALL SYSTEM 7 MANHOLE QACT Qt.lAX QrxcEss QPROPOSED=(P) FROM TO (CFS) (CFS) (CFS) (CFS) 4 3 1.4 10,4 3 2 11.1 15,4 28 2 2,0 7,6 2A 2 3,6 7,6 2 1 17,7 13,0 4,7 3 7(P) IS,4 12,6 (11.1+1.5) 7(P) 2 15,4 12,6 2 1 13,0 12,6 @ OUTFALL 6(P) (E) 7,6 7,5 2A (E) 7,6 0,65 (E) 5(P) 8,1 @ OUTFALL (7.5+0.65) SYSTEM 47 MANHOLE QACT QMAX Q EXCESS Q PROPOSED=(P) FROM TO (CFS) (CFS) (CFS) (CFS) 8 7 2,9 22,6 7 6 6,7 22.6 7 9(P) 2.0 22,6 8,9 (6.7+2.2 ~ rs¥ ~jm:i 'I . 'i' ~!". SJ. .---...,."", ., 51 , "r"",.- ; .~~~y~~.- :·---fij;· --<~,::~>-- t OJ" ''''¡j.,. ,fíJUb. ~.. ...~.J. ¡i!,:! 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'___J=-::-:-:-:__ __ ~_-----.----- .-,--r---r-C -;.'- ::_____- ~~ I :~:.:':~::~~__==- ¡.-. .. .. -~. .. .. ----.------:--- l oj. " o " , ¡ =.>~- . - /-..-+..-~.. ( .y'" ,'. I d~] fiftit:~p ~ ] .~.~~ i ] f'--rl '" j . - 1 , 1 1 A; 7;,f) AL- I \ i {)..¡,c. cJ~ , i , I! i : I , i , ! I i , J.~..-. " , i - _-==--_ l_.J I I ------.:~~.:.:_~__~' .. 1\{ APPENDIX H Noise Analysis ENVIRONMENTAL NOISE ASSESSMENT FOR THE CALABAZAS PLACE PROJECT CUPERTINO, CALIFORNIA October 7, 2005 Prepared for: Kristy Le David J. Powers & Associates 1885 The Alameda, Suite 204 San Jose, CA 95126 Prepàred by: Richard R. Illingworth, PE ILLINGWORTH & RODKIN, INC. Acoustics · Air Quality 505 Petaluma Boulevard South Petaluma, CA 94952 (707) 766-7700 Job No.: 05-171 INTRODUCTION This report is an assessment of the potential environmental noise impacts associated with the Calabazas Place Project proposed in Cupertino, California (see Figure I). This assessment contains a brief discussion of the fundamental concepts of environmental acoustics, regulatory background applicable to the project, a description of the existing noise conditions on the site, an evaluation of the compatibility of the proposed uses per the guidelines of the Noise Element of the City of Cupertino's General Plan, and an assessment of the potential offsite noise impacts associated with the construction, operational, and traffic-generated noise. Mitigation measures are presented. The proposed project consists of a mixture of residential and commercial uses as shown in Figure I. The site is bounded by Junipero Serra Freeway (1-280) to the north, Tantau Avenue to the east, Stevens Creek Boulevard to the south, multi-family housing and the Vallco Fashion Park to the west. The nearest existing noise sensitive use to the site is the multi-family housing project currently under construction off Stevens Creek Boulevard just west of Finch Avenue. Setting a. Noise Measurement Units The decibel (dB) is the unit of measurement which indicates the relative amplitude of a sound. Zero decibels corresponds roughly to the threshold of hearing. Each 10 decibel increase corresponds approximately to doubling the perceived loudness ofthe sound. Technical terms are defined in Table 1. In this report all sound levels are measured using the A-weighting filter network and are reported as dBA. Representative outdoor and indoor noise levels in units of dBA are shown in Table 2. Since the sensitivity to noise increases during the evening and at night - because excessive noise interferes with the ability to sleep - 24-hour average noise level descriptors have been developed that incorporate noise penalties added to nighttime noise levels. The day/night average sound level, Ldn, is a measure of the cumulative noise exposure with 10 dB added to noise levels at night (10:00 PM to 7:00 Am). b. State and Local Regulations California Environmental Quality Act (CEQA) The California Environmental Quality Act (CEQA) asks the following questions regarding potential noise effects to evaluate the significance of potential project impacts. Potential noise effects trom a project could be considered significant if any of the following occur: a. exposure of persons to or generation of noise levels in excess of standards established in the local general plan or noise ordinance, or applicable standards of other agencies; b. exposure of persons to or generation of excessive ground-borne vibration or ground- borne noise levels; TABLE 1 Definitions of Acoustical Terms Used in this Report .'Jierm Decibel, dB Sound Pressure Level Frequency, Hz A-Weighted Sound Level, dBA Equivalent Noise Level, Leq Community Noise Equivalent Level, CNEL Day/Night Noise Level, Ldn L01, L1O, L5o, L90 Ambient Noise Level Intrusive A unit describing the amplitude of sound, equal to 20 times the logarithm to the base 10 of the ratio of the pressure of the sound measured to the reference pressure. The reference pressure for air is 20. Sound pressure is the sound force per unit area, usually expressed in micro Pascals (micro Newtons per square meter), where I Pascal is the pressure resulting ftom a force of I Newton exerted over an area of 1 square meter, The sound pressure level is expressed in decibels as 20 times the logarithm to the base 10 ofthe ratio between the pressures exerted by the sound to a reference sound pressure (e.g., 20 micro Pascals). Sound pressure level is the quantity that is directly measured by a sound level meter. The number of complete pressure fluctuations per second above and below atmospheric pressure, Normal human hearing is between 20 Hz and 20,000 Hz, Infrasonic sound are below 20 Hz and Ultrasonic sounds are above 20,000 Hz. The sound pressure level in decibels as measured on a sound level meter using the A-weighting filter network, The A-weighting filter de-emphasizes the very low and very high frequency components of the sound in a manner similar to the frequency response of the human ear and correlates well with subjective reactions to noise, The average A-weighted noise level during the measurement period. The hourly leq used for this report is denoted as dBA leq(h)' The average A-weighted noise level during a 24-hour day, obtained after addition of 5 decibels in the evening from 7:00 pm to 10:00 pm and after addition of 10 decibels to sound levels in the night between 10:00 pm and 7:00 am, The average A-weighted noise level during a 24-hour day, obtained after addition of 10 decibels to levels measured in the night between 10:00 pm and 7:00 am. The A-weighted noise levels that are exceeded 1 %, 10%, 50%, and 90% of the time during the measurernent period, The composite of noise from all sources near and far. The normal or existing level of environmental noise at a given location, That noise which intrudes over and above the existing ambienl noise at a given location, The relative intrusiveness of a sound depends upon its amplitude, duration, frequency, and time of occurrence and tonal or informational content as well as the prevailing ambient noise level. 2 120 dBA Jet fly-over at 300 meters Rock concert 110 dB A Pile driver at 20 meters 100 dBA Night club with live music 90 dBA Large truck pass by at 15 meters 80 dBA Noisy restaurant Garbage disposal at I meter Gas lawn mower at 30 meters 70 dBA Vacuum cleaner at 3 meters CommerciallUrban area daytime Normal speech at I meter Suburban expressway at 90 meters 60 dBA Suburban daytime Active office environment 50 dBA Urban area nighttime Quiet office environment 40 dBA Suburban nighttime Quiet rural areas 30 dBA Library Ouiet bedroom at ni{!ht Wilderness area 20 dBA 10 dBA Quiet recording studio Threshold of human hearing OdBA Threshold of human hearing 3 c. a substantial permanent increase in ambient noise levels in the project vicinity above levels existing without the project; d. a substantial temporary or periodic increase in ambient noise levels in the project vicinity above levels existing without the project; and e. for a project located within an airport land use plan or where such a plan has not been adopted within two miles of a public airport or public use airport, would the project expose people residing or working in the project area to excessive noise levels. CEQA does not define what noise level increase would be considered substantial. Typically, an increase in the Ldn noise level resulting from the project at noise sensitive land uses of 3 dBA or greater would be considered a significant impact when projected noise levels would exceed those considered satisfactory for the affected land use. Title 24, Part 2 o/the State Building Code Title 24, Part 2 of the State Building Code regulates environmental noise inside new multi- family housing projects. Projects exposed to an exterior Ldn of 60 dBA or greater shall incorporate the noise control treatments necessary to reduce the interior Ldn to 45 dBA or less. A report is required to besubmitted to the Building Department with the building's plans which delineates the noise control treatments incorporated in the project design necessary to achieve the interior noise limit. Noise Element of the City of Cupertino General Plan The Noise Element establishes goals and policies designed to minimize noise exposure at noise sensitive land uses. Applicable goals and policies of the City of Cupertino are described below. Goal A Land Use Compatibility Strive to ensure a compatible noise environment for all existing and future land uses. Policy 6-24 Use Figures 6-K (Noise Contour Map), 6-L (Land Use Compatibility for Community Noise Environments), 6-M (Equal Noise Level Contours) and the City Municipal Code to evaluate land use decisions. Office buildings, commercial and professional centers are considered "normally acceptable" in noise environments up to 70 dB Ldn' In a noise environment between 67 and 77 dB Ldn, however, these land uses are considered "conditionally acceptable". Above 7S dB Ldn, noise levels are considered "normally unacceptable" for commercial land uses. Multi-family residential uses are considered "normally acceptable" in noise environments up to 6S dB Ldn and" conditionally acceptable" in environments up to 70 dB Ldn. In a noise environment between 70 and 75 dB Ldn, multi-family residential land uses are considered "normally unacceptable". Above 7S dB Ldn, this land use is considered "clearly unacceptable". 4 Playgrounds and neighborhood parks are considered "normally acceptable" in noise environments up to 70 dB Ldn. Goal B Transportation Noise Work to reduce the noise impact of major streets and freeways upon Cupertino. Goal C Non-Transportation Noise Sources Protect residential areas as much as possible from intrusive noise generated by sources other than traffic. Policy.6-31 Be sure new commercial or industrial developments plan their delivery areas so they are away from existing or planned homes, Continue active enforcement of Section 10.45 of the Municipal Code limiting commercial and industrial delivery hours adjoining residential uses, Continue to restrict non-emergency building construction work near homes during evening, early morning, and weekends, Policy 6-32 Policy 6-34 Goal D Noise Attenuation Encourage techniques to diminish noise wherever they can produce practical and desirable results. Noise Ordinance The City of Cupertino Noise Ordinance establishes regulations and standards regarding noise. Regulations applicable to the proposed project are listed below. 10.48.40 Daytime and Nighttime Maximum Noise Levels Individual noise sources, or the combination of a group of noise sources located on the same property, shall not produce a noise level exceeding those specified on property zoned as follows, unless specifically provided in another section of this chapter: Land Use at Location of Complaint Residential Nonresidential Maximum Noise Level on Receivin Pro Ni httime Da ime 50 dBA 60 dBA 55 dBA 65 dBA 10.48.050 Brief Daytime Incidents During the daytime period only, brief noise incidents exceeding limits in other sections of this chapter are allowed, providing that the sum of the noise duration in minutes plus the excess noise level does not exceed 20 in a two-hour period. For example, the following combinations would be allowable: 5 Noise Increment Above Noise Duration in Normal Standard Two-Hour Period 5dBA 15 Minutes 10dBA 10 Minutes 15 dBA 5 Minutes 19dBA 1 Minute 10.48.53 Grading, Construction and Demolition · Grading, construction and demolition activities shall be allowed to exceed the noise limits of Section 10.48.040 during daytime hours provided that the equipment utilized has high-quality noise muffler and abatement devices installed and in good condition, and the activity meets one of the following two criteria: (a) No individual device produces a noise level more than 87 dBA at a distance of25 feet (7 .5 meters); or (b) The noise level on any nearby property does not exceed 80 dBA. · It is a violation of this chapter to engage in any grading, street construction, or underground utility work within 750 feet of a residential area on Saturdays, Sundays and holidays, and during the nighttime period, except as provided in Section 10.48.030. · Grading, construction, or demolition occurring during nighttime periods shall not be allowed unless they meet the nighttime standards of Section 10.48.040. Existing Noise Environment Noise sources affecting the project site and surrounding area include vehicular traffic on 1-280, Stevens Creek Boulevard, Tantau Avenue, and Val1co Parkway which transects the site. A noise monitoring survey was conducted from September 8-9, 2005 to quantify the existing noise environment at representative locations in the area. Three long-term (24-hour) and five short- term (I O-minute) noise measurements were conducted to characterize the noise environment throughout the site. Location L T -I was approximately 110 feet from the center of Stevens Creek Boulevard. The measured Ldn was 60 dBA. Typical hourly average noise levels ranged from about 57-60 dBA and nighttime hourly average noise levels dropped to as low as 44 dBA. Location L T-2 was along Val1co Parkway about 325 feet from the 1-280 right-of-way. The measured Ldn was 61 dBA. Typical hourly daytime noise levels were fairly constant at about 59- 61 dBA. During the evening, noise levels dropped about 5 dBA and at night noise levels, again, dropped to about 45 dBA Leq. Location L T-3 was approximately 135 feet from the 1-280 right- of-way. The measured Ldn was 74 dBA. This portion of the site is exposed to significantly higher noise levels than other proposed development areas. During the daytime, hourly average noise levels were typically 72-74 dBA. At night, noise levels dropped to a low of about 60 dBA Leq, Short-term spot measurements conducted at the locations of long-term meters and elsewhere on the site indicated consistent noise levels to those reported above with one 6 exception. At Location L T-3, the noise exposure at grade was about 6 dB lower than the noise exposure at the secured long-term measurement site. Ground level receptors in this area received some additional shielding that was not afforded the long-term meter. Long-term measurement locations are shown on Figure I. Data are summarized in Figures 2, 3, and 4. Figure 1: Noise Measurement Locations G 17,. -<> A c.I.ba:. Place Proposal I Sept 19, 2005 I> 1m OQ ~c¡, ~.'.'.'. ~ 7 Figure 2: Daily Trend in Noise Levels at LT-I " 80 75 " <' .." ~ " oS 60 .~ " ~ 80 45 .. 35 15:00 Noise Levels at L T-l -110 feet from the center of Stevens Creek Boulevard September 7th-8th, 2005 ._*--~- 17:00 19:00 21:00 23:00 t.urIG\ft I &RtIDIarI,IIIc. !¡"'Acoustics. Air Quality'''/! . . . . . . )<;--_._-*---*-~*--~*-- "'._--" 1:00 5:00 7:00 9:00 11:00 13:00 3;00 Hour Beginning Figure 3: Daily Trend in Noise Levels at L T-2 " 80 75 " ~" ~ " ~80 . 'Š 55 Z 80 45 Noise Levels at L T-2 -25 feet from the centerline of Vall co Parkway, -325 feet 1-280 Right-oC-Way September 7th-8th, 2005 ---X____;.,; ._--~'~-~ .. 35 15:00 19:00 21:00 23:00 17:00 WiIGWIIImf&RooKIPI,IM:. ;/If'Acouslics·Air OUBlllyø', . ~ ''y' . '--:1( 1:00 3:00 5:00 9:00 11;00 7:00 Hour Beginning 8 o '" -Q-L{1) _L(10) -a--L(50) ___L(ØO) Ldn=60dBA . om --<>-L01 _L10 -<>--'''' X--L90 Ldn=61 dBA 13:00 Figure 4: Daily Trend in Noise Levels at L T-3 Noise Levels at L T~3 -\35 feet from 1-280 Right-of-Way September 7th-8th, 2005 " 80 70 'x__,_~_ __></ . u". " <' "''' :;; .. 3" .~ 55 ~ -<>-LOt " --El--LfO --", -}o(-L90 .. Ldn =- 74 dBA .. " 15:00 17:00 19:00 21:00 23:00 ';00 3;00 5:00 7:00 9:00 11:00 13:00 iLMMœnf&RoøcIv,IIIC:. ifIllAcoust/cs.AirOullilyM'¡ Hour Beginning Impacts and Mitigation Measures Significance Criteria According to CEQA, a significant noise impact would result if the project would be exposed to noise levels exceeding the City's established guidelines for noise and land use compatibility. A significant noise impact would result if noise levels increase substantially at noise-sensitive land uses (e.g., residences). A substantial increase to noise levels would occur if the project resulted in an increase of 3 dBA or greater at noise-sensitive land uses. Construction noise levels are treated somewhat differently because they are temporary. Significant noise impacts would result from construction if noise levels are sufficiently high to interfere with speech, sleep, or nonnal residential activities. Construction-related hourly average noise levels received at noise-sensitive land use above 60 dBA during the daytime and at least 5 dBA above the ambient noise would be considered significant if the exposure exceeds one construction season (or one year). Environmental Checklist Less Than Potentially Significant With Less Than Significant Mitigation Significant Imoact Incorporation Imoact No Imoact Expose persons to or generate ø noise levels in excess of 9 standards established in the local general plan or noise ordinance, or applicable standards of other al!encies? Expose persons to or generate excessive ground-borne ø vibration or ground-borne noise levels? Result in a substantial permanent increase in ambient noise levels in the project ø vicinity above existing levels without the proiect? Result in a substantial temporary or periodic increase in ambient noise levels in the ø project vicinity above existing c levels without the proiect? DISCUSSION Impact 1: Noise Exposure The project could expose persons to noise levels in excess of those established in the Noise Element of the City of Cupertino's General Plan and by the State Building Code. Noise measurements conducted on the site at the location shown on Figure I indicate that the Ldn is currently 75 dB at the setback of the nearest proposed units to 1-280 (approximately 70 feet from the right-of-way line). Noise levels at upper floors, due to greater exposure to noise fiom the freeway, reach an Ldn of 81 dB. Projected traffic increases will result in a I dB increase in noise along Highway 280. The Ldn at the setback of the closest units to Stevens Creek Boulevard (approximately 90 feet fiom the center of the road) currently reaches 63 dB at the first-floor level and 65 dB for upper floors. Projected traffic increases will result in a I dB increase in noise along Stevens Creek Blvd. The nearest units to Tantau Avenue, approximately 80 feet from the center of the road, are currently exposed to an Ldn of a minimum of 65 dB at ground level and 67 dB for upper-floor levels. Noise levels increase along Tantau Avenue in the direction of 1-280. Projected traffic increases will result in a 2 dB increase in noise levels on Tantau Avenue. Noise levels outside of the closest units proposed to Vallco Parkway currently reach an Ldn of60 dB (at a distance of about 75 feet from the center of Vall co Parkway). A projected noise level increase of3 dB is expected along Vallco Parkway. The proposed residential uses would, therefore, be exposed to noise levels above 65 dB which is considered by the City of Cupertino to be the normally acceptable noise level for multi-family residential environments. Each of the residential areas would have a courtyard for the use of the residences, The courtyard closest to 1-280 (associated with the senior housing portion of the project) would be exposed to an Ldn over 65 dB. The other courtyard areas would be exposed to 10 an Ldn of less than 65 dB and would provide a normally acceptable noise environment. The public parks would be exposed to an Ldn of up to 65 dB. The Noise Element considers these noise levels to be normally acceptable for a park without additional mitigation. The commercial portion of the property would be exposed to noise levels of up to 65 dB which would also be considered normally acceptable for office and commercial development. Interior noise levels of the units along Stevens Creek Boulevard, Tantau Avenue, 1-280, and Va1lco Parkway could exceed an Ldn of 45 dB without mitigation. The City of Cupertino's Noise Ordinance restricts noise generated by non-transportation sources to a maximum level of 50 dBA at night and 60 dBA during the daytime when measured in a residential area. The proposed multi-family housing located at the comer of Tantau Avenue and Stevens Creek Boulevard would be located within about 70 feet of the proposed commercial uses. Noise levels at this distance due to onsite activity, including truck movements, mechanical equipment, etc., could exceed 60 dBA during the daytime or 50 dBA at night, depending upon the location of the noise sources on the site. This is a potentially significant impact without mitigation. The other portions of the proposed housing are far from the commercial facility on the other side of roads and would not receive noise levels from the shopping center that would exceed the noise generated by traffic on the adjacent streets. Impact 2: Ground-Borne Vibration and Ground-Borne Noise The project would not generate excessive ground-borne vibration or ground-borne noise. This is not a significant impact. The project does not include any components that would generate significant ground vibration during project operation. Impact 3: Permanent Increase in Noise Levels The project would not generate substantial permanent ambient noise level increases above levels existing without the project. Noise levels in the area will remain much the same as they are (within a decibel) after completion of the project. Cumulative traffic is expected to increase noise levels by only up to 2 dBA along Tantau Avenue. Noise levels along Vallco Parkway are expected to increase by up to 3 dB. Noise levels on Stevens Creek Boulevard, and the Junipero Serra Freeway are projected to increase by I dB. Impact 4: Temporary Increase in Noise Levels The project could result in a substantial temporary increase in noise levels in the area during construction. During construction, noise levels would increase in the area of the site. The only area where construction noise levels could potentially impact an existing noise sensitive receptor would be during construction ofthe proposed multi-family housing at the west end ofthe project adjacent to the existing multi-family housing. Construction would take place as close as 70 feet from these homes, and noise levels could reach 80 to 85 dBA. The City of Cupertino's Noise Ordinance will require that noise levels along any nearby property not exceed 80 dBA during construction. This is a potential impact. MITIGATION MEASURES 11 Mitigation Impact 1: The noise impacts associated with this project could be mitigated in a number of ways. The compatibility of the project with the onsite noise environment could be achieved by revising the site plan to shield the courtyard associated with the senior housing project from noise emanating from 1-280. By using the buildings to shield the courtyard, a noise level of less than 65 dBA could be achieved. Interior noise levels in the units facing 1-280, Tantau Avenue, Vallco Parkway, and Stevens Creek Boulevard could be reduced by requiring sound rated windows as appropriate and mechanical ventilation to allow the windows in these units to be kept closed as the resident's option to achieve the interior standard for an Ldn not in excess of 45 dB. Per the requirements of the State Building Code, a noise assessment will be required for the final site plan for this project indicating which units would be required to have mechanical ventilation and pointing out what the STC ratings of the facades facing the various streets would be required to be. Proper selection of sound-rated building elements would mitigate this impact to a less-than-significant level. Noise levels generated by the shopping center would have to be controlled so noise levels do not exceed 60 dBA during the daytime or 50 dBA at night at the nearest residential units. This could include eliminating nighttime deliveries or relocating loading docks and assuring that rooftop mounted mechanical equipment is appropriately acoustically treated. Mitigation for Impact 2: None Required. Mitigation for Impact 3: Noue Required. Mitigation for Impact 4: Construction equipment should be well maintained and used judiciously to be as quiet as practical. The following measures are identified to reduce noise from construction. I. Limit demolition and construction activities to non-holiday, daytime hours between 7:00 am and 5:00 pm; 2. Construction noise levels could be mitigated by constructing noise barriers to shield the existing multi-family units from construction at the adjacent site. 3. Utilize 'quiet' models of air compressors and other stationary noise sources where technology exists; 4. Equip all internal combustion engine-driven equipment with mufflers, which are in good condition and appropriate for the equipment; 5. Locate all stationary noise-generating equipment, such as air compressors and portable power generators, as far away as possible from businesses, residences or noise-sensitive 12 land uses; 6. Prohibit all unnecessary idling of internal combustion engines; 7. Notify all adjacent businesses, residences, and noise-sensitive land uses ofthe construction schedule in writing; 8. Designate a disturbance coordinator, responsible for responding to complaints about construction noise. The name and telephone number of the disturbance coordinator shall be posted at the construction site and made available to businesses, residences or noise- sensitive land uses adjacent to the construction site; 13 APPENDIX I School Fiscal and Enrollment Impact Analysis CALABAZAS PLACE DEVELOPMENT TOLL BROTHERS, INC. FISCAL AND ENROLLMENT IMPACT ANALYSIS Prepared for: Prepared by: TOWN HALL SERVICES 830 Woodside Road, Suite 4 Redwood City, California 94061 (650) 373-7373 FAX 373-7370 www.townhallservices.com November, 2005 ENROLLMENT IMPACTS Background The City of Cupertino has contracted with Town Hall Services to conduct an objective analysis of the fiscal and entollment impacts of the proposed Calabazas Place residential development project, a proposed 369 unit mixed-use development composed of26l stacked flats and 108 townhomes over flats (condominiums), and 112,000 square feet of retail space. The project is located on a large 27 acre parcel south of Highway 280, east ofN. Wolfe Road, and north of Stevens Creek Boulevard. The developer of the proposed Calabazas Place project is Toll Brothers, Inc. Toll Brothers, Inc. anticipates that construction of the project will begin between fall and winter 2006, and be completed by an estimated mid 2009. This analysis contains a projection of new students as a result of the project, and an identification of the fiscal impacts of the project on the districts in which the projected students would attend. The proposed Calabazas Place project is located within the school district service areas of Cupertino Union Elementary School District (CUSD) and Fremont Union High School District (FUHSD). The school attendance areas in which Calabazas Place would be located are Eisenhower Elementary School, Hyde Middle School, and Cupertino High School. Student Generation Rate Analysis A projection of new student entollment as a result of the Calabazas Place project allows the potential impact of development on the three impacted schools, now and into the future, to be . considered. Student generation rates (SGRs), the average number of students per new housing unit, are a significant factor for the projection of entollment into the future. Multiplying the number of new units by an appropriate SGR results in a projection of students from the units. Different housing types generate different SGRs. Our experience is that single family detached units typically generate approximately two to three times the number of students generated by multi-family condominium and apartment units. Townhouses (single family attached units) usually exhibit slightly lower SGRs than most single family detached units, but generally have SGRs much greater than multi-family condominium and apartment units. Condominiums (referred to as flats in the Calabazas project) and apartments usually have relatively low SGRs unless there are size or affordability features that make them attractive to families. Factors other than housing type, such as the sale price, the location of residential development, and socio-economics, are also significant in determining student generation. When the units are new, younger families tend to be over-represented and student generation is generally greater at the elementary school level. As new units begin to age, the students present begin to enter the higher grade levels and eventually high school. Thus, with their families aging, they are not replaced by new students at the same rate. A more stabilized SGR occurs as Town Hall Services I November, 2005 Citv of Cuoertino Calabazas Place Develooment Imoact Analvsis the subdivision ages, with the spreading of students amongst the elementary, middle, and high school being more equally apportioned. Recent Residential Development In Cupertino In order to determine an appropriate SGR to assign to the 369 Ca1abazas Place units, we identified recently developed residential units within the City of Cupertino that are similar in type and characteristics to the proposed Ca1abazas Place development. We then utilized address and grade information from the 2004 student file for both CUSD and FUHSD to count students from the units, then calculated elementary and high school SGRs for the various residential developments. Our SGR analysis included site visits to a fairly wide range of single family detached and single family attached projects. It covered 15 residential developments of various types in different parts ofthe City with an approximate total unit count of 1,723 units, 813 of the total being single family. A majority of the housing projects were completed within the last 3-10 years; with the exceptions being the DeAnza Oaks, Woodspring, and Seven Springs developments, which we estimate are 15 plus year old developments. It should be noted that the projects were located in various elementary, middle, and high school attendance areas, including the three attendance areas impacted by the Calabazas Place project (Eisenhower Elementary, Hyde Middle and Cupertino High), and in areas outside ofthe attendance areas where the Calabazas Place project would be located. Attached to this report as Appendices A and B are the SGR breakouts by development for elementary (Appendix A) and high school (Appendix B) districts. Tables I and 2 below summarize the SGR findings for both CUSD and FUHSD for the residential projects analyzed (which are shown in detail in the Appendices). Table 1 Average SGRs by Housing Type Cupertino Union School District Housing Type Avg. SGR by Units' Avg. SGR by Projecf SFD 0.497 0.545 SFA (older) 0,180 0.190 SFA (newer) 0.528 0,369 Condo.lApt. 0,164 0,181 I The total number of students divided by the total number of units; this measurement tends to be highly influenced by the largest projects and its particular characteristics. zThe average of the SGRs for each project; this measurement reflects a broader range of projects, with a smaUer project being weighted equally to a larger one. Source: Town Hall Services and CUSD studentjile. Town Hall Services 2 November, 2005 CiN of CuverUno Calabazas Place Develonment lmnact Analvsis Table 2 Average SGRs by Housing Type Fremont Union High School District Housing Type Avg. SGR by Units' Avg. SGR by Project' SFD 0.229 0,207 SFA (newer) 0.115 0,117 SFA (oider) 0,125 0.089 Condo./ApL 0.142 0.043 IThe to/al number 01 students divided by the total number of units; this measurement tends to be highly influenced by the largest proJec/$ and its pameu/ar characteristics. 2The average of the SGRsfor each project; this measurement reflects a broader range o/projects, with a sma/ler project being weighted equally to a larger one. Source: Town Hall Services and FUHSD.studentfile. Student generation in Cupertino projects varies by housing type more than is usual in similar communities, particularly with regards to the high student generation in single family units, and the low student generation in most apartments. Single family detached (SFO) housing, and a large share of single family attached (SFA) housing (townhomes and condominiums), are targeted towards families with children, with many units having three or four bedrooms. This is because there is a very high premium on family housing in CUSO and FUHSO due to families wanting to take advantage of the quality of the district's schools. Thus, student generation is very high for an older suburban area. In contrast, other single family attached units and most apartments are in multi-story buildings and have only one or two bedrooms. For young families with children they are more expensive and less satisfactory than other alternatives, so student generation in these housing types is comparatively modest. Of the projects we analyzed for similarity to the Calabazas Place project, the Travigne Villas condominium project (46 total units), which was completed within the last two to five years, is the most comparable. The Travigne Villas project exhibited an elementary SGR of 0.239, above the average of the multi-family housing projects in the sample. The Travigne Villas is a higher density project located in a primarily commercial area (Stevens Creek Blvd.), and without housing attributes such as yards and play areas (more common in single family units) that are likely to be attractive to families with school aged children. On the other hand, it is adjacent to a residential area and it has its own common areas separate from the commercial setting. (The Monte Bello apartments, in contrast, are incorporated into the commercial activities site.) While the Travigne Villas project served as an important comparison for our determination of the SGRs anticipated for the Calabazas project, we also evaluated each of the other projects, considered the factors that determined its student generation, compared those factors with the Calabazas project, and utilized this information in our choice of the SGRs used for projecting enrollment from the Calabazas project. Town Hall Services 3 November, 2005 Citv ofCuoertino Ca/abazas Place Develooment Imoact Ana/vsis Calabazas Place SGRs The Toll Brothers, Inc. Calabazas Place project proposes 369 units: 108 condo/townhomes and 261 stacked flats. The proposed project also includes 112,000 square feet ofretail space which will replace the existing 150,000 square feet of office space at the site. Table 3 shows the current Calabazas Place development product composition which was provided to us by Toll Brothers, Inc. staff. The residential portion of the Ca1abazas project is a high density (30 units per acre) project with three and four story buildings. The North, East, and West Terrace building units average 1,600 square feet and the Villas building units average 1,475 square feet. "Townhouses" most often refer to ground level units. As ground level units, they often have higher SGRs. In this case, the townhouses are two story units on top of flats, With the townhouse units being an average 1,475 square feet per unit, a little smaller than the average for the flats, and being primarily two bedroom units, the Calabazas townhouses will not exhibit the student generation of a more single family oriented project. (For example, the Astoria single family attached townhouse project, with ground level units of a much larger size, has an average SGR of 0.61.) Table 3 Calabazas Place Development Unit Composition Building Estimated Unit Average Per Unit Units Type Square Sales Price Footage 95 Stacked Flats 1,600 $880,000 118 Stacked Flats 1,600 $880,000 48 Townhouses & Flats 1,600 $880,000 108 Townhouses & Flats 1,475 $810,000 369 West Terrace East Terrace North Terrace Viltas Total Source: Town Hall Services, Toll BrOlhers, Inc., and the City of Cupertino's Below Market Rate (BMR) housing program. *The aty of Cupertino '5 BMR (rental) program dictales that the rental rate for each unit is established based upon the renters income level and the number of bedrooms in the rental unit. As shown in Tables I and 2, the average of the condominium and apartment projects' average SGRs for CUSD and FUHSD were 0.181 and 0.043, respectively, though individual projects range up to 0.290 and 0.110 for the elementary and high school districts. Travigne Villas evidenced SGRs of 0.240 and 0.065 respectively. It is our judgment that the SGRs used to calculate new student enrollment 3-10 years after this single family attached project is constructed should be slightly above this level, partially in order to reflect the increasing desire of families to reside in the two school districts. (The SGRs should be well below the SGRs of the much larger ground floor single family attached (townhouse) units in the Bungalows Courts (The Parks at Monte Vista) and Pruneridge Avenue projects which have been recently analyzed.) The SGRs chosen for the Calabazas Place project are shown in Table 4. Town Hall Services 4 November, 2005 Citv ofCuoertino Calabazas Place Develovment Imoact Analvsis Table 4 Calabazas Place Development Projected SGRs Elementary (K-5) SGR Middle (6-8) SGR Total Elementary SGR Calabazas Place Development Single Family Attached-SF A Townhomes and Flats 0,20 0,08 0.28 High School SGR Source: Town Hall Services 0.10 Enrollment Impacts A determination of appropriate SGRs to be used for the Calabazas Place project allows us to proceed with the calculation of the enrollment generated ITom the project. We can also describe how those SGRs change over time, and more importantly, to assess the impact of that development on the current enrollment at the impacted schools: Eisenhower Elementary, Hyde Middle, and Cupertino High. Table 5 shows the calculated student enrollment impact resulting from the project. Table 5 Estimated Enrollment Impact' Calabazas Place Development Unit Eisenhower Hyde Cupertino Type Elementary Middle High Total Villas Townhouse 108 108 108 SGR 0,20 0.08 0,10 Students Subtotal 22 9 11 42 West Terrace Flat 95 95 95 SGR 0.20 0,08 0.10 Students Subtotal 19 8 10 37 East Terrace Flat 118 118 118 SGR 0.20 0.08 0,10 Students Subtotat 24 9 12 45 North Terrace Flat 48 48 48 SGR 0.20 0,08 0.10 Students Subtotat 10 4 5 19 Total Students 75 30 38 143 Students Per Grade 12.50 10.00 9.50 11.00 *Three to ten years after construction of the units. Source: Town Hall Services Town Hall Services 5 November. 2005 Citv of Cuoertino Calabazas Place Develooment Imoact Analvsis A total of approximately 143 students are projected to be generated as a result of the Calabazas Place development, and will impact the three schools whose attendance boundaries include the project area. It is anticipated that of those 143 students: 75 will attend Eisenhower Elementary School, 30 will attend Hyde Middle School, and 38 will attend Cupertino High School. Capacity issues at each campus will detennine if all of these students will be housed at their "home" school, or whether some will need to be sent to another school out of their attendance area as a result of capacity limitations. An examination ofthe enrollment capacity at each of these schools is discussed in the next section. Enrollment impacts at these schools occur not only immediately upon completion, but also into the future as well. As stated previously, the elementary student generation is generally greatest the first few years after project completion; then begins a period of time when those students progress through the grade levels. The students at the elementary (K-5) grade level will progress into middle school in the next one to six years, and then progress into the high school in the next four to nine years. In short, the 38 high school students generated as a result of the project will progress through high school and, in the next few years, gradually be replaced by the 105 elementary district students as they progress through the high schools. Given the larger number (per grade) of elementary district students, the high school enrollment will increase slightly above its initial level during this period. Eventually the students coming from the Ca1abazas Place project will tend towards a long tenn "steady-state" or "plateau," with enrollment at a level moderately below this initial period after construction. Enrollment Capacity At Impacted Schools Enrollment ITom the addition of new students as a result of the Ca1abazas Place project directly impacts capacity at the affected schools. In order to evaluate the impact, the capacity of the affected schools must be calculated. Table 6 shows the enrollment capacity at Eisenhower Elementary, Hyde Middle, and Cupertino High. Town Hall Services 6 November, 2005 C itv of Cuoertino Calabazas Place Develooment Imoact Analvsis Table 6 Theoretical Enrollment Capacity At Impacted Schools Classroom Number of Classroom To/at CBEDS Capacity Type Classrooms Loading Factor Capacity 1004/ Surptus (Deficit) Eisenhower K-5 23 23' 529 Eisenhower Severe SDC I 8 8 Eisenhower Non-Severe SDC 1 12 12 Total Eisenhower Capacity 549 570 (-21) Hyde 6-8 34 25' 850 Hyde Severe SDC 1 8 8 Hyde Non-Severe SDC 1 12 12 Total Hyde Capacity 870 1,003 (-133) Cupertino 9-12 56 27.5' 1,540 Cupertino Severe SDC 2 8 16 Cupertino Non-Severe SDC 1 12 12 To/al Cupertino Capacity 1,568 1,542 +26 I CBEDS 2004 represents the enrollment count taken in October, 2004 for the 2004~2005 school year. 1 Classroom loading/actors/or Eisenhower Eiementary (K~3 aJ 20 per room, 4-5 at 31 per room, and 6-8 at 25 per room) and Hyde Middle pro"itkd by CUSD staff. J Capacity calculated based on 32 students per class, with adjustments for teacher prep and meeting periods and al/owances for physical education and the ninth grade class size reduction (CSR) program. Source: Town Hall Services and CUSD and FUHSD data. CUSD staff provided Town Hall with existing loading standards: kindergarten to third is loaded at 20 students per classroom (Class Size Reduction Program-CSR), fourth to fifth is loaded at 31 students per classroom, and sixth to eighth is loaded at 25 students per room (thus allowing for teacher preparation period). The 23 students per class used in Table 6 to calculate capacity at Eisenhower Elementary is a weighting of the 20 CSR students in kindergarten through third, and 31 students in fourth and fifth grades. The number of classrooms used in our calculations include all classrooms, including those used for regular instruction, plus those classrooms used for special purpose instruction (music, art, drama, resource specialist program, etc.). Thus, the classroom count assumes maximum classroom usage. At the standards shown in Table 6, CUSD has a capacity for 549 students at Eisenhower Elementary, and 870 students as Hyde Middle. As a point of reference, the total 2004 District enrollment for CUSD is 16,285 students. More complexities are involved with high school classroom loading and scheduling standards. Currently, the majority of Cupertino classes are loaded at 32 students per class. The District considers this an educationally undesirable ratio, and has operated at a lower ratio in the past. Some classrooms are loaded at lower rates due tQ policies and programs at FUHSD schools that affect average class size, and some rooms are not available for regular class loading due to the following principal factors which affect FUHSD classroom loading: FUHSD is reinstating the ninth grade math and English class size reduction program (CSR) in Fall 2005. Ninth grade CSR Town Hall Services 7 November. 2005 Citv of Cupertino Calabazas Place Develooment Imoact Analvsis programs, which limit ninth grade math and English classes to a maximum of20 students, are subsidized by the State. About 10% of high school students are in these classes at any time. Special use classrooms such as science labs, music, art, culinary arts, and industrial arts, etc. are classrooms that are difficult to utilize every period. Also, per FUHSD policy, teachers use their classroom one period per day for teacher preparation and meetings. On the other hand, at any given time approximately 10% of the students are assumed to be in Physical Education (P.E.) class, and thus do not require classroom space on a regular basis. The result of all these programs is that the effective loading is about 27.5 students per classroom (for non-SDC classes), the figure the District uses for facilities planning. Finally, as shown in Table 6, Special Day Class (SDC) students at Cupertino High occupy classrooms at 12 students per classroom for non-severe SDC classes, and 8 students per classroom for severe SDC classes. The State maximum for SDC classroom loading is 13 student per classroom for non-severe SDC classrooms, and 9 students per classroom for severe SDC students. Given these assumptions regarding classroom loading, Cupertino High has a capacity of 1,568 students, even with most classes having an average of 32 students. This capacity is approximately equal to (greater by 26 students) the current Cupertino High 2004-05 enrollment of 1,542 students. Our analysis of capacity at the three schools indicates that at the present time a capacity deficit exists at Hyde Middle school, with Eisenhower Elementary and Cupertino High approximately at capacity, as it is shown in Table 6. This information is consistent with the perspective of staff at CUSD who indicated that at present Eisenhower Elementary and Hyde Middle are currently at capacity. However, CUSD has completed modernizations and renovations to many of its campuses. In particular, both Eisenhower Elementary and Hyde Middle have recently completed their facilities improvements and will, as a result, be creating new attendance boundaries and moving the sixth grade into the middle school grade level (sixth grade was previously part of the elementary grade level). Therefore, both Eisenhower and Hyde will have significantly different enrollments next year. In short, although both CUSD schools are showing capacity deficits in Table 6, recent and near- term facilities improvements and boundary changes will reduce, and likely eliminate, that capacity deficit. It is the District's assertion that, given the SGRs used in this report, the two CUSD schools affected by the Toll Brothers project should be able to accommodate the new students, either through the existing improvements to the two facilities and the attendance boundary adjustments, or by adding classrooms to the facilities. Overcrowding exists at several FUHSD schools. At a 2004-2005 enrollment of 1,542, Cupertino High is near theoretical enrollment capacity. FUHSD has recently conducted a residency verification of all its students. As of May, 2005 the District estimates that approximately 250- 300 students will be "'dis-enrolled" for the 2005-2006 school year as a result of being ineligible 8 November, 2005 Town Hall Services Citv ofCuoertino Calabazas Place Develooment Imoact Analvsis due to residency. The initial estimate is that approximately 30-50 of these students will be from Cupertino High. As it stands now, an estimated net capacity gain of250-300 for the District, and 30-50 students for Cupertino High, will create additional capacity, but again will not alter the near capacity situation that currently exists. In addition, it will take approximately four years for the gradual passing of the baby boom echo generation from high school age to cause a reduction in enrollment. (The District currently has a study underway to forecast future enrollment, including the effect ofthis demographic transition.) CAPITAL COST IMPACTS Residential Development Impact Fee Revenue Both CUSD and FUHSD are eligible to levy Level I development impact fees on new residential and commercial/industrial development. There is currently a development impact fee revenue sharing agreement between FUHSD and its elementary feeder districts. The maximum Levell residential fee that CUSD and FUHSD are allowed to levy is $2.24 per square foot of residential development. Per the existing fee revenue agreement between the elementary and high school districts, FUHSD is allowed to collect 40% of $2.24, or $0.90, per square foot of residential development. CUSD is allowed to collect 60% of$2.24, or $1.34, per square foot of residential development. Both Districts are still collecting at rates based on the previous 2004 maximum fee level of $2.14 per square foot, but are in the process of bringing their fees up to the maximum allowable. As stated previously, Toll Brothers, Inc. has provided Town Hall Services with tentative site plans that show the breakout of unit types and sizes for the Calabazas Place project. Table 7 shows the development impact fees that would be generated by the Calabazas Place project. Table 7 Development Impact Fees Number of Square Feet Total CUSD CUSD FUHSD FUHSD Total Units Per Unit Sauare Feel Fee Fee Total Fee Fee Totat Fees West Terrace 95 1,600 t 52,000 $1.34 $203,680 $0,90 $136,800 $340,480 East Terrace 118 t.600 t 88,800 $1.34 $252,992 $0,90 $t69,920 $422,912 North Terrace 48 1.600 76.800 $1.34 $102,912 $0.90 $69,120 $172,032 Vittas 108 t,475 t 59,300 $1.34 $213 462 $0,90 $143370 $356832 Totat 369 $773,046 $519,210 $1,292,256 Source: Town Hall Services ·Per California Government Code Sec. 65995.1(0) Senior Housing units are only assessed aJ. the commercial and industria/fee leveh. Town Halt Services 9 November, 2005 Ciw of Cuvertino Calabazas Place Develovment Imvact Analvsis Commercialllndustrial Development Impact Fee Revenue Under California law, both districts are eligible to levy development impact fees on commercial/industrial development in addition to the fees being levied for residential development. The districts are each in the process of bringing their fees up to the maximum allowable $0.36 per square foot of commercial/industrial development. Currently, they are together levying $0.34 per square foot. The fee sharing agreement also governs the split of fee revenue from non-residential development. Of the $0.36 maximum commercial/industrial fee, CUSD is allowed to collect 60%, or $0.22, per square foot, and FUHSD is allowed to collect 40%, or $0.14. Commercial/industrial fees generated within the districts have averaged four percent of residential fees through the last three years. The commercial/industrial fee revenue is sufficiently small, and associating a portion of it with the Calabazas Place project would not change the magnitude of the facilities costs impacts to either CUSD or FUHSD. On the other hand, currently there is an existing 150,000 square foot office building on the site where the Calabazas Place project is proposed. When the developer applies for building pennits for the Calabazas Place project, they will be given a credit for the demolition of the existing commercial/industrial structure at the current commercial/industrial fee rate. This will reduce slightly the fee the developer will be charged for the creation of the new 369 residential units. In relationship to the new residential fees (Table 7) for the Calabazas Place units, the commercial/industrial demolition credit will also be comparatively insignificant. Facilities Costs The cost for housing additional students at each of the impacted schools comes from each District's existing Levell Development Impact Fee Justification Report. FUHSD's Fee Justification Report was completed in 2001 by Town Hall Services. CUSD's Fee Justification Report was completed in 2000 by School Facility Consultants. (Town Hall Services is now in the process of preparing an updated fee justification report.) Each of those reports identifies a per student cost to house enrollment generated as a result of new development. Because each of these reports is quite old, we have applied an adjustment of 21 % to the costs enumerated in those reports to bring the costs up to date. (At the time of both reports the Class B Construction Cost Index was 1.40. The State Office of Public Construction's current Class B Construction Cost Index is currently 1.70,21 % higher.) Table 8 shows the calculation of the difference between the development impact fees likely to be generated by the Calabazas Place projects given the current project proposal and the Construction Cost Index adjusted facilities costs per student for each of the districts. The table shows negative capital cost impacts for both districts. Town Hall Services 10 November, 2005 Citv ofCuvertino Ca/abazas Place Deve/ovment lmvac/ Ana/vsis Table 8 Facilities Fees Versus Facilities Costs CUSD FUHSD $7,362 $13,663 Facilities Cost Per Student Per Student' Cost Difference Students $9,317 -$1,955 105 $24,478 -$10,815 38 Total Facilities Cost Impact Fee Revenue Per Student -$205,275 -$410,970 "'FURSD fee report completed by Town Hall Services in 2001, CUSD fee report completed by School Facüîty Consultants in 2000. Source: Town Hall Services and existing CUSD and FURSD Fee Justification Report. OPERATIONAL REVENUE AND COST IMPACTS Operating Revenues The Calabazas Place project will affect the revenues and costs for the two districts, although in very different ways. CUSD is currently a "revenue limit" district. Like the overwhelming majority of revenue limit districts in the state, its property tax revenues are not sufficient to reach the per student amounts guaranteed under the State of Cali fomi a school funding program. Therefore the State supplies the additional funds necessary to fill the gap up to the guaranteed level. The result is that the revenues from property taxes plus the revenue limit program funding increases proportionately as enrollment increases. Another reality for a revenue limit district is that the increase in property tax revenue from new homes is offset by a comparable reduction in the money from the State. The "revenue limit" total for CUSD for 2003-2004 was $70,863,543, or $4,351 per student. The State and the Federal Government also supply other funding, generally for categorical programs, and these also tend to increase as enrollment increases. The operating revenues from these sources totaled $1,336 per student in CUSD for the 2003-2004 fiscal year. Thus, the per student revenue impact coming from sources that will increase approximately proportionate to the addition of new students resulting from the Calabazas Place project is $5,687. Local revenues (other than the property tax) constitute a far smaller source of funds; they totaled $8,783,260 or $539 per student. Some examples of local revenue sources are interest income and rental/lease income. These revenues are not likely to increase with additional enrollment. FUHSD is one of the relatively few districts in the state that is not a revenue limit district. The District's per student property tax is moderately above the amount of per student revenue limit funding guaranteed by the State. State revenue does not increase when additional students are enrolled. However, new homes generate additional property taxes, increasing the District's revenues. Table 9 shows the calculation of the assumed assessed valuation and property tax calculation for the proposed Ca1abazas Place project, based on tentative estimates from Toll Brothers, Inc. It should be noted that actual market prices paid for the units will determine what the final assessed valuation for the 400 Ca1abazas units will be. Town Hall Services II November. 2005 Citv ofCuvertino Ca/abazas Place Deve/ovment Imvact Ana/vsis Table 9 Estimated Assessed Valuation and Property Tax Calabazas Place Development Number of Estimated Assessed Units Sales Price Valualion West Te"Qce 95 $880,000 $83,600,000 East Te"Qce 118 $880,000 $103,840,000 North Terrace 48 $880,000 $42,240,000 Viltas 108 $810,000 $87,480,000 Totat 369 $317,160,000 Property Tax Rate (/.0%) $3,171,600 FUHSD Share of Tax Rate (/7.6%) $558,202 FUHSD Share of Tax Rate per FUHSD Student $14,690 Source: Toll Brothers, Ine. estimate of unit sales prices, and the City of Cupertino's BMR housing program standards for a low-income one bedroom unit.. In November 2004 voters in the Fremont Union High School District approved Measure L, a parcel tax of $98 per parcel. The 400 Calabazas Place homes will generate $31,360 in additional funds per year for the approved duration of the parcel tax. As with the CUSD, local revenues (other than the property tax) constitute a far smaller source of funds; they totaled $5, I 05,264 or $530 per student. In general, these revenues are not likely to increase with additional enrollment. Thus, the per student revenue impact is calculated to be the $8,858 per student received trom property and parcel taxes. Table 10 shows the operational revenue anticipated for additional students as a result of the Calabazas Place project. Given recent information about home sales in the District, it is likely that when the units are completed and ready for sale, the estimated per unit sales price will be higher than the figures indicated in Table 9. Therefore, we are providing an estimated assessed valuation in Table 10, and subsequent operational revenue and cost calculation, for a "higher estimated sales price," should real estate market conditions in the District continue strong growth. 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(þ ~ 3 ~ ::> () " "~........ ::;... ::> I'>- '< - '" 0 I'>- _ "'1 P' (þ 5~5.~ ~ 1'1'.1 n::;..' ~-g..g ~ - ~ (þ 0 ... § ::\. '" ~ (1) 5' õ: E.. I'>- 0 " -::> >< -. (þ ::r:: 00' ::s ~ _. _ ~7ca.~ Q..-....- (þ ~ (1) ::r:: 'ê3!:¡,< '" 3 0 I'>- - = (1) " 0 3 ';;>' (") 0.. (' ) ;::;., þ (1) ::s _. "0 "'1 _ p.. ~ 2. _. = _. N ~ (þ - ~ þ:I ,- '-< ::1'."0 ....... ~ 0"0 w ""'t ~ a w -" x ~ :r "'1 _. &" " " 3 I'>- ...,., ::> '" " ~¿; 0 _ .... -. < (1) .... ~ ~ -........ (11 _'-< ~ g. õ' '" . o ::> - '" ;¡; .'" g &- (þ ~ "'CS ...., ""'t ::s P' :::+. '" I'>- ~. tI1 ::s C"' - _. o..o~~ ~§ng. I'>-I'>-c:::o " '" <Z> ;¡; "'.:;¿ ......" - '"'... §.. ::>" " '" ::> en - '" èi " " ~ :::: ~ :;J <;' " '" - '" ~ ~ '" "" " .... ..., ~ ~ '" Citv of Cuoertino Calabazas Place Develooment lmoact Analvsis For FUHSD, the District as a whole is overcrowded and is operating at a student per class ratio that is educationally undesirable, and the Cupertino campus likely had a historical students per class ratio far less than the current student per classroom ratio of 32: I. Capacity calculations are shown in Table 6. o Facilities costs per student are anticipated to exceed facilities fee revenue per student at CUSD (-$1,955 per student) and FUHSD (-$10,815 per student), or a total facilities cost deficit of (-$205,275) for CUSD and (-$410,970) for FUHSD. o Operational costs are anticipated to exceed operational revenue at the impacted CUSD schools (Eisenhower and Hyde) by -$539. At the impacted FUHSD school (Cupertino High) there will be a net benefit of$7,837 per student using current assessed values, and under higher assessed valuations the impact becomes $10,043 per FUHSD student ihea1 estate market conditions continue to escalate as the proposed project nears completion. Total operational costs are projected to be a deficit of -$56,595 for Eisenhower and Hyde combined, and a surplus of$297,812 (current assessed values), and $381,637 (higher assessed values) for Cupertino High if real estate conditions continue to escalate. CUMULATIVE RESIDENTIAL DEVELOPMENT IMPACTS The City of Cupertino has requested that this analysis include, in addition to the analysis for the Vallco Properties development, a cumulative analysis of the fiscal and enrollment impacts of the project combined with other projects that are either under plan review or have been approved and are under construction. Those other projects (and the project developer) are; Metropolitan at Cupertino (Menlo Equities), Vallco Rosebowl (Vallco Properties), Pruneridge Avenue (Morley Brothers), and Vallco Properties (Va1lco). This section assesses the aggregated net enrollment, capital facilities cost, and operational cost impacts as a result of all of these projects. Appendix C shows the fiscal and enrollment impacts of each project, and provides an aggregated analysis of the impacts of those projects as a whole. Town Hall Services completed analyses similar to this one for the Ca1abazas Place project: Pruneridge Avenue, and Vallco Properties projects. Although the Metropolitan and Vallco Rosebowl projects were not similarly analyzed, information was obtained that have allowed us to calculate the estimated impacts of those two previously approved projects, and to include them in our analysis of the cumulative fiscal and enrollment impacts. Town Hall Services 16 November, 2005 City ofCuverlÎno Calabazas Place Develovment lmvact Analvsis Cumulative Enrollment Impacts The forecasted school enrollment impacts as a result of the five residential development projects all occur in the Cupertino Union Elementary and Fremont Union High School Districts, and impact schools individually based upon the school attendance area in which the residential development is situated. The net enrollment impact to CUSD and FUHSD schools are as follows: 188 new students in the CUSD elementary schools (grades K-5), 80 new students in CUSD middle schools (grades 6-8), and 95 new students to FUHSD high schools (grades 9-12). Appendix C shows these figures and the impacts of the projects per grade level and per school. It is difficult to assess the enrollment versus capacity impacts of these projects. As is stated in the previous Enrollment Capacity of Impacted School section of this report, the enrollment of the impacted CUSD elementary and middle schools was unknown at the time the report was prepared due to the alteration of the attendance boundaries (Collins Elementary and Lawson Middle) of the schools where this project lies. However, staff have analyzed the situation and concluded that district schools, with modest additions if needed, will be adequate to accommodate students from the proposed projects. FUHSD is concerned about enrollment impacts district wide (but their concern is focused primarily on any projects that might be in the Monta Vista School attendance area) and primarily over next few years as they anticipate some enrollment decline as the baby boom echo student pass from the high schools. All of the five projects analyzed here located within the Cupertino High School attendance area, and therefore impact enrollment at that school. Cumulative Capital Facilities Cost Impacts The cumulative net facilities cost impacts for the five projects analyzed is (-$755,609) for the Cupertino Union School District. On a per student facilities cost basis, the average per student facilities cost impact is (-$3,054) for CUSD. The greatest impacts result from the Ca1abazas Place project, with a total project facilities cost impact of (-$205,275) and the Bungalow Courts project with a per student facilities cost impact of(-$3,77I) for CUSD. The cumulative net facilities cost impacts for the six projects analyzed is (-$1,452,034) for the Fremont Union High School District. On a per student facilities cost basis, the average per student facilities cost impact is (-$12,250) for FUHSD. The greatest facilities cost impacts for FUHSD arise from ·the Calabazas project with a total project facilities costs impact of (-$410,970) and from the Metropolitan project with a per student impact of (-$13,911). Town Hall Services 17 November. 2005 Citv of Cuvertino Calabazas Place DeveloDment ImDact Analvsis Cumulative Fiscal Operating Cost Impacts The cumulative net fiscal operating cost impacts for the five projects analyzed is (-$139,062) for CUSD, with the greatest impact being Calabazas Place (-$56,595). The per student projected operating impact is (-$539). The deficit reflects the assumption that there are certain local revenues that will not increase proportionately with the enrollment generated from new development. In contrast to the elementary district, FUHSD revenues are affected by increases in the property taxes. The District is projected to have net revenue (revenue after deducting costs) of ($791 ,492) under current assessed values, and ($961,338) under higher estimated assessed values. On a per student fiscal operating cost impacts, the average per student operating cost impact is $5,387 for FUHSD under current assessed values, and $7,094 under higher estimated assessed values. With regard to specific projects, the District is projected to receive net revenues from the Calabazas Place project of ($558,202) under current assessed values, and ($642,027) under higher estimated assessed values. It is clear that it is the size of the Calabazas project that causes it to have both the largest negative facilities cost impact and the largest high school operating surplus. It should be noted that the cumulative impacts are aggregations of our individual project analyses using the assumptions contained in those reports, and represent the development composition at the time plans were approved (Metropolitan and Vallco Rosebowl) or where they are currently in the plan review process. It is possible that the development composition of the projects that are currently under plan review may be altered, resulting in the data assumptions which were used as the basis for these calculations being changed. Town Hall Services 18 November, 2005 Superintendent William E. Bragg, Ph.D. Board of Education Pearl Cheng Ben Liao Josephine Lucey Gary McCue George Tyson Cupertino Union School District 10301 Vista Drive . Cupertino, California 9~014-2091 . (408) 252-3000 . Fax (408) 255-4450 December 6, 2005 Gary Chao, Associate P1armer City of Cupertino 10300 Torre Avenue Cupertino, CA 95014-3255 Dear Gary, RE: ToIl Brothers Project I am responding to your request for final comment on the ToIl Brother's Calabaza Project. The district has studied the "Fiscal and Enrollment Impacts" report prepared by Town Hall Services dated November, 2005. The district concurs with the analysis and conclusions in the study as presented. Of special note is the facilities funding shortfall. The Town HaIl Services study only projects the student growth from development. It does not attempt to forecast the future district total enrollment. Other factors may effect capacity other than development. The Fremont High School District contracted demographer has completed his work for them and in the process has developed a data base that will also enable our district to better project the overall impacts of all types of growth. We have engaged him to assist us with these projections. Once his analysis is completed, we will have a better basis for substantive comment regarding the overall cumulative impacts of all future development, At the present, the district would not have any formal basis for objecting to this particular project, noting however that there may be a facilities funding shortfall. The district also continues to reserve the right to direct students from any project to attend schools that may be able to better accommodate growth, Sincerely, Is/ Rick Hausman Chief Business Officer Cupertino Union School District F REMONT UNION HIGH SCHOOL DISTRICT Cupertino, Fremont, Homestead, Lynbrook, Manta Vista High Schools and Adult/Community Education Stephen R. Rowley, Ph,D., Superintendent of Schools December 7,2005 Ms, Cynthia Wordell, City Planner City of Cupertino 10300 Torre A venue Cupertino, CA 95014 Mr. Gary Chao, Associate Planner City of Cupertino 10300 Torre Avenue Cupertino, CA 95014 Re: Response to the proposed Toll Brothers, L.L.C. Calabazas Place Project Fiscal and Enrollment Impact Analysis Dear Ms. Wordell and Mr. Chao: It is my understanding that theCity of Cupertino Planning Commission will soon be holding a: hearing on the proposed Calabazas Place residential development, Toll Brothers'LL:C. being the developer. I have reviewed the CalabUzas Place. Fiscal and Enrollment Impact Report (Report) prepared by Town Hall Services. Per your request, this correspondence represents my position regarding the project. On previous occasions I have commented on similar proposed residential projects, as well as the recently adopted City of Cupertino General Plan Update. The Fremont Union High School District (FUHSD) appreciates the opportunity to respond to City staff in areas where proposed development will have an impact on FUHSD schools. Below, I offer some additional comments that highlight the District's perspective as it relates to the Toll Brothers proposed 369 residential town homes and flats project. I. The Student Generation Rate (SGR) of 0.10 used in the Report for projected enrollment impacts is appropriate and accepted by both the City of Cupertino and FUHSD. A net of approximately 38 students will likely be generated from this project. These students will be enrolled at Cupertino High School. 2. As stated in the fiscal impacts section of the Report, the development impact fee revenue is nearly $411,000 less than the total facilities cost impact to house the 38 students generated as a result of the proposed project. This is not a benefit to the District. . 3. It is estimated that the assessed valuation of the property will generate more property tax revenue to FUHSD than the cost of the students coming from the project. The estimated amount of revenue in excess of the cost per student is roughly $10,000. This is a financial benefit to the District (see Report discussion for operational revenue and impacts). BOARD OF TRUSTEES: KaLlII)'J1 Ho, Avie Katz, Nallcy A. Newtoll, Barbara F Nunes, Homer H C Tong 589 Wesl Fremont Avenue Post Office Box F Sunnyvale, CA 94087 AN EQUAL OPPORTUNITY EMPLOYER (408) 522·2200 FAX (408) 245·5325 http://www.fuhsd.org/ Page 2 Re: Toll Brothers Calabazas Place Project Decemher 7, 2005 4. In a previous letter to the City regarding the impact of growth on the capacity of our schools, I stated that we were within two months of completing a long-range enrollment study, as well as a school capacity study. We are not yet done with those studies. However, I reiterate my concern that the cumulative effect of housing projects, especially in the Cupertino High School attendance area, may in fact push our student enrollment figures beyond school capacity. 5. Unlike an elementary school, where enrollment increases can be mitigated by portable classrooms, the impact of increased enrollment in high schools does not have an easy solution. When a high school's enrollment substantially exceeds its capacity, it creates extreme pressure on course offerings and core facilities during the day (e.g" lunchroom or library). There is no specific number that qualifies as "substantially exceeds." However, we must be very wary of the cumulative effects on one school that would create more than a 10% increase above its capacity. 6. The planned developments in the Vallco portion ofthe City will generate student growth in the Cupertino High School attendance area. The total magnitude of those projects is 966 units, with a cumulative enrollment impact of 95 students, much greater than just the Toll Brothers impact of 38 students if considered individually. Regardless of dollar figures that will help mitigate the impact of growth, I am concerned in that these projects will have a negative impact on school capacity and its core facilities. The Fremont Union High School District staff will continue to cooperate with the City's staff to evaluate each new development proposal based on the impact to our general fund, school capacity, and physical facilities. We will do so on a proposed project-by-project basis, as well as continuing to assess the cumulative impacts of development over time. Si~~ Stephen R. Rowley Superintendent C: FUHSD Board of Trustees APPENDIX J Transportation Analysis Draft Final Report Calabazas Place Transportation Impact Analysis Prepared for: City of Cupertino Prepared by: Fehr & Peers December 2005 SJ05-795 TABLE OF CONTENTS EXECUTIVE SUMMARY ............................................................................................................................................ i 1. INTRODUCTION ................................................................................................................................................. 1 2. EXISTING CONDITIONS .................................................................................................................................... 5 Roadway Network,..".."...".,......,.."",..""",..",..,..,.."",.."..",...,.,..,.".,.. ,..' ...,."",.",."".,."""""""",.,..", ..,.',."", 5 Existing Pedestrian and Bicycle Facilities ,....,..,......,..,..,...."..."",.."".,.""".."""""",......,...",......".."....".,.,...".6 Existing Transit Service,...,..".."""",.."..."""".."..,.",.".."..""""""""""""."""""""""""""""""""""".."" "", 6 Existing Intersection Volumes and lane Configurations.,....,...................,......,....,..,..,....,......,..,..,....,........,........ 9 level of Service Methodology,.,.", ".."."" ,..,""'.',..,."..".."".."""",.." """"""""" """" ",..".."", ,.."" ,.."""" ", ",9 Existing Intersection levels of Service .,'.... """..,...',.. '...',..,........................."...... ....,...... ,..,...." ...... ,.., ,............. 13 Warrant Analysis....".""".."",..."".."",.",.""",.."",.."..".."""",."..,.,..,..,..""..".,.."....."""""..,.."".." ,..""""", 15 Field Observations,.""""..".,.".""..".,.""..""."""".",.."",.."..,.."",.."""""",.."""""""""".".,..... "".,."""".", 16 3. BACKGROUND CONDITIONS......................................................................................................................... 17 Background Roadway Improvements...""".."",.".""..".."..",.""""",.,..,."""".."""""",..".""""""""""..".,., 17 Background Traffic Estimates..".",.......,.,....,...,...,.., ....."...,."."..,..,.,....,.."..""".."..,.,...."...""......",."""",..,.", 17 Background Intersection Levels of Service "..."..".,..,'........,..,....,................,..".......,......,..........,..,....".........".. 18 4. PROJECT CONDITIONS .................................................................................................................................. 23 Project Traffic Estimates.,.,.".",.,...,.",.,.",.".",."""."".."..,..".."""..,.,...........,...."..,..,...""."."" ..""...."""".,.', 23 Project Intersection levels of Service ,.................."..,..,..,....,..".".'..,.".,.."..,..',..,..,...,......,....,.,........"..,............ 24 Vallco Parkway Operations""""""""..,..."",..""..",.,."".,.,.."..,.".,.",..".."""",."""..,...""."".""..",.,..""""" , 25 Intersection Impact Criteria""""""""""..""..""""",..,.."",...,..".,.,..,."."".."",.""",..",."""",..",.."""."""""" 25 Intersection Mitigation Measures"",.."".."",..,.."",.."",.",.""..,.."".,."",.",.".,.".".,..,.".,.",..,." ..',.."""""..,.", 35 Freeway Segment Analysis"".."",."",."."."".,.",.".,.."""",..,.."."""""""""..""."""""""""""""",."",.", "... 35 Sim Traffic Analysis".."",..",......,.....",.."."."..".,.,.,."."..",."",...."......,..,..""..""""""..""""""""..""", ",.,.",., 36 Site Access and On-Site Circulation....,.................,..".,....,.,.,.,..,..,..,......,......,......,......"..........,....,..,.."........",.,37 Parking",..".,..."..,..,..".."""",.."",..,.",..."""",.."..,....",.,....,."..".,."".,..".."."".,..".."",....""...", """"".."",..., 38 Neighborhood Traffic"""..,.",.,..."...",." .....,.,.,.."..,.,".',..".."..""."""".."",..""".."""",.."",."",""'.."."",.."", 39 5. CUMULATIVE CONDITIONS ........................................................................................................................... 41 Cumulative Traffic Estimates "", """ """""",.....".."", ", "".""".".,..,.",.."..".",.."",.., "",.."", ", """" "" .."""".,41 Cumulative Intersection Levels of Service ,..,....,....,............,..,..'"...'"..,..,..................,....,.."....,......,..,...."..,.",,41 Cumulative Roadway Improvements.." "" ",.,..".."" "" """",...,.',."." "." """", """ ", "", ", "" """""", "",.."""",41 6. CONCLUSIONS ................................................................................................................................................49 APPENDICES Appendix A: Intersection Tuming Movement Counts Appendix B: Traffix Level of Service Calculations Appendix C: Signal Warrant Worksheets and Crash Data Appendix D: Approved and Pending Developments LIST OF FIGURES Figure 1 Site Location""""""""""""",.""""""",."""""""""",.."."",..,..".,.,.,.".."",..,...,..,."""""" """,.".",., 3 Figure 2 Site Plan,.., ",...... ", .."" "" ,..,.... ",. ,..."" "" ,.",..",....,.. ,.., ,....,.... ............,.. ,.., ...."....,.. "......",.. ..,..,...., ".... 4 Figure 3 Existing Bicycle Facilities ,......"......,..........,..,........""",."".."..,.."..""..,."..,.."",......."",..."",.""""",.. 7 Figure 4 Existing Transit Routes ,..............,......,........,....,.,..."."..,.....,..",......"..,......,..,,.."..,..""..".,......,.."...,..,8 Figure 5a Existing Peak Hour Volumes....,.."..............,......".,.,..".,....",..,..,..,..".,....,..."..".."................,."..,.,.,,10 Figure 5b Existing Peak Hour Volumes,....,..",..,....."..,.."..,..,....,..,..,..............,..,..,...,.............,....,......,...........,.. 11 Figure 6a Background Peak Hour Volumes ...........",....".",.."......,........,..,.."..,....,...."....................................,,21 Figure 6b Background Peak Hour Volumes ,..,..,.............................,....,.""".",....."......"..............,..........,..,..".. 22 Figure 7 Project Trip Distribution ........,..,.... ..,........, "........ ......""..,..,.'.. ..,.,..,.".",.", ,....."....,.. ....,..,............,..,.. 26 Figure 8a Residential and Retail Project Trip Assignment.......,....,........,........,....,...."",.",.,..,..,..".........."",.,..,27 Figure 8b Residential and Retail Project Trip Assignment....,..,..,.,.."",..,..,....,..,..".."",.",....,..".,",..,."""",.",.28 Figure 9a Net New Project Trip Assignment ..........,...............,..,.."..,..,..".."...".,',.,',..,',.,',......,....."...."""",."..29 Figure 9b Net New Project Trip Assignment ,......................,..".."......",.......,..,..,....,..,..,..."""",""".,.,."..........,30 Figure 1 Oa Project Peak Hour Volumes ,........,.."..,............".,..,...",.,..,.."..........,...,.....,..".,...,.......".,.,.,....,.."".,,31 Figure 1 Ob Project Peak Hour Volumes ..,.......,........"....".,..',..,..........,..,..,....,..,....,..,...,..,....,..,.."..,....,'.,...."".,.. 32 Figure 11 Project Operations on Wolfe Road (PM Peak Hour),..,....,....,..,......,........""."......",..""",.,.."....,..".. 32 Figure 12 Project Operations on Stevens Creek Boulevard (PM Peak Hour),...."....".",..".""""..""".,......,....,32 Figure 13 Recommended Site Plan Changes.",.""..,..,....,............"....,......,..,........,..,........,..,"...............",.."..,40 Figure 14a Cumulative No Project Peak Hour Volumes ,..,..',..,..,........,....,......,..,..........,....,.."..,....".',.."............42 Figure 14b Cumulative No Project Peak Hour Volumes ....,........".......,.....".,.".......,...........,..,.....,..,....,..",......",43 Figure 15a Cumulative Plus Project Peak Hour Volumes,......,..........,......,...."........,........,..,..........,..,..,..............44 Figure 15b Cumulative Plus Project Peak Hour Volumes...,...........,..,..,..,..,............"...,...,.,.,..,...."..,..".....,........45 Table ES-1 Table 1 Table 2 Table 3 Table 4 Table 5 Table 6 Table 7 Table 8 Table 9 Table 10 Table 11 LIST OF TABLES Intersection levels of Service Summary ,..".., "" ,.."""""""",..".,. ,..."."..". ""..".." """"""""""", "",iii Signalized Intersection level of Service Definitions_Using Average Control Vehicular Delay.",.".., 12 Unsignalized Intersection level of Service Definitions_Using Average Control Delay.,..,..".",......... 13 Existing Intersection levels of Service,...,.".."",...""""""...,.,..,....,....."...."".,.,.,....",.,......".,.",.,.,.,14 Existing Office Trip Generation Rates and Estimates ....,................,.."..,..........,...............,..,..,..,...... 17 Background intersection levels of Service .....................................,....,.....,.....,..,....,..."....,.....,."",.,19 Project Trip Generation Rates and Estimates,........,....,.......",..............,..,....,.......,.........".......,..,..,..24 Background and Project Intersection levels of Service,...,......,.......,....,..",...."....".,......,..""..,..,..,..33 Freeway Segment Analysis"",..""""""""""."..".",. '..".,...,.",.,..,."....."",.,.."...,.."""..,..,... ,....,.."., 35 Project Parking Requirements and Supply,..,.".,..,.,..""...",.,.."."...., "".",.,...."",.. ,.""...""""".." ,.,,39 Background and Cumulative Plus Project Intersection levels of Service.........".".....,..,........"......., 46 Cumulative Intersection levels of Service .."..,........,...........,."..,....",....,...............,..",...,...""",..,..,,48 Draft Fmal Calahazas Place TIA Decembe, 2005 . _ . . . . . . .. .. .. -- EXECUTIVE SUMMARY This report presents the results of the traffic impact analysis (TIA) for the proposed Calabazas Place residential and retail project. The proposed project includes construction of 108 townhomes, 261 condominiums, and 120,000 square feet of retail space, The project will also remove 150,000 s,f. of vacant office space, The project site, located in the eastern area of Cupertino, is generally bounded by Interstate 280 to the north, Stevens Creek Boulevard to the south, Tantau Avenue to the east and is located on both sides of Vallco Parkway and Finch Avenue, The impacts of the proposed project to the surrounding transportation system were evaluated following the guidelines of the City of Cupertino and the Valley Transportation Authority. The operatiOns of twenty-one key intersections were evaluated with level of service calculations during the weekday morning (AM) and evening (PM) peak periods for Existing, Background, Project, Cumulative No Project, and Cumulative plus Project Conditions, PROJECT TRIP ESTIMATES With demolition of the existing 150,300 square feet of office space, the proposed retail and residential project is estimated to generate a net increase of 5,676 daily trips, a net increase of 12 AM peak-hour trips (133 fewer inbound/145 added outbound) and a net increase of 447 PM peak-hour trips (327 added inbound/120 added outbound), ROADWAY OPERATIONS AND IMPACTS Intersections Table ES-1 presents the level of service results for all study intersections under Existing, Background, Project, and Cumulative Conditions, The intersection of Homestead Road and Lawrence Expressway and Vallco Parkway and Wolfe Road would operate at unacceptable levels during the PM peak hour for all future scenarios, The remaining intersections are projected to operate at LOS D or better during both peak hours under all scenarios, The proposed project would have a significant cumulative impact at Vallco Parkway and Wolfe Road, Restriping the westbound through lane on Vallco Parkway to provide a shared through/right-tum lane would improve the operations at this intersection to LOS D, , The City is considering installing a roundabout at the intersection of Pruneridge Avenue and Tantau Avenue, This intersection was analyzed as a single-lane roundabout with Cumulative plus Project volumes, With this configuration, it is expected to operate at LOS A during both peak hours, Additional review of design parameters and other considerations are necessary to fully evaluate feasibility of a roundabout at this location, Roadways A traffic simulation model using SimTraffic software was developed for Stevens Creek Boulevard and Wolfe Road to determine the progression and queuing effects of the addition of proposed project traffic, The model was also used to evaluate the removal of one westbound travel lane adjacent to the curb to provide parallel on-street parking on Stevens Creek Boulevard between Tantau Avenue and Finch Avenue, The simulation shows there is good progression along Wolfe Road and Stevens Creek Boulevard with the exception of the eastbound left-turns on Stevens Creek Boulevard at Wolfe Road, However, the elimination of a through lane and installation of parallel on-street parking is not recommended unless it is part of a larger project to reduce through capacity or provide parking on a longer segment of Stevens Creek Boulevard, fP FEIIR & PH'" n.."..uIIQ. (U,~",.,~ Draft Final Calabazas Place TlA December 2005 - The proposed project Includes reducing Vallco Parkway from 6 to 2 lanes, and installing diagonal and parallel on- street parking. This two-lane roadway with parking has sufficient capacity (10,000 to 12,000 vehicles per day) to carry the estimated 7,000 vehicles per day under Project Conditions. With the proposed contiguratlon, two all-way stop controlled intersections (at Finch Avenue and a project driveway) are projected to operate acceptably and excessive queuing is not anticipated. Also under Project Conditions, traffic volumes at the unsignalized Vallco Parkway and Finch Avenue intersection would not meet the minimum warrant criteria for signalization during either the AM or PM peak hours. Freeways The amount of traffic added to each segment is estimated to be less than one percent of the segment's capacity. Therefore, the project's impact on the freeway segments is considered less·than-significant. SITE ACCESS AND ON-SITE CIRCULATION Access to the project site will be provided by driveways on Vallco Parkway, Stevens Creek Boulevard and Finch Avenue. These driveways provide more than adequate capacity for vehicles to enter and exit the project site. Access to the western residential units is provided by a right-turn only driveway on Vallco Parkway. The narrowed street width on Vallco Parkway would prohibit eastbound U-tums at Finch Avenue. It Is recommended that a "No U-tum" sign be installed at this intersection. PEDESTRIAN, BICYCLE AND TRANSIT IMPACTS It is recommended that a sidewalk be provided on the west side of Tantau Avenue between Vallco Parkway and Pruneridge Avenue including a raised sidewalk along the existing bridge over 1-280. Textured pedestrian crosswalks are recommended on Vallce Parkway at the new intersection west of Tantau Avenue. In addition, pedestrian countdown heads are recommended at the Stevens Creek Boulevard intersections with Finch and Tantau Avenues. Modifications to the bicycle lane striping on Vallco Parkway were recommended. With these changes, the project is estimated to have a less-than significant impact to the pedestrian and bicycle facilities. The project would not have a significant impact to the transit facilities since existing transit service is provided within one-quarter mile of the project site. PARKING According to the City's Municipal Code, 1,271 parking spaces are required. The proposed on-site supply of 1,261 spaces does not meet the parking requirement. The project will provide sufficient parking for the residential uses. However, the retail and restaurant parking supply does not meet city parking requirements. Some of the on-street parking spaces on Vallco Parkway and Finch Avenue would be available for guests and restaurant and retail overflow parking. However, there will still be insufficient parking for the retail and restaurant uses. The project could implement either valet parking, off-site employee parking, reduce the project size, enter a shared-use agreement with Hewlett-Packard to use their parking lot during the evenings and weekends, or build the retail portion in phases with a parking monitoring program to ensure that adequate parking is provided, To accommodate demand and encourage nonmotorized transportation, the project shall provide 148 Class I bicycle spaces for the residential units and 24 Class II bicycle spaces for retail customers, SENIOR HOUSING ALTERNATIVE An alternative to the project that replaces 47 condominiums with 80 senior housing units was also studied, This alternative was estimated to generate 9 fewer AM and 4 fewer PM peak-hour trips than the proposed project. The senior housing alternative would have similar traffic impacts as the proposed project. fþ ;; F¡:/IR & PEERS ,...".',."...""'"".." Draft Fmal Calabazas Place TIA December 2005 -- TABLE ES-' INTERSECTION LEVELS OF SERVICE SUMMARY Cumulative + Existing Background Project Project Peak AlnCrlt. AinCrlt. Intersections Hour Delay' LOS2 Delay' LOS2 Delay' LOS2 Delay' V/C4 Delay' LOS2 1. Wolfe Road I AM 26.5 C 26,9 C 26,9 C -0,1 +0.003 27,2 C Homestead Road PM 43.0 0 46.7 0 47,2 0 +1.1 +0,020 48,1 0 2, Homestead Road I AM 19.7 8· 20.5 c+ 20,2 c+ ·0,6 ·0,012 20,2 c+ Tantau Avenue PM 19,8 8· 21.3 c+ 21.5 c+ +0.3 +0.011 22,1 c+ ..~.__._- 3, Homestead Road I AM 42.7 0 47,3 0 47,5 0 +0.1 +0.000 48.0 0 Lawrence Expresswal PM 50.1 0 92.5 F 93,7 F +1.4 +0.003 98.6 F 4, Wolfe Road I AM 21.3 c+ 20.2 c+ 20,2 c+ ·0,1 +0.007 21.2 C+ Pruneridge Avenue PM 32,5 C, 31.7 C 31.7 C +0.1 +0.012 32.s c· 5. Pruneridge Avenue / AM 21.1 c+ 21.3 c+ 21.3 C+ +0.1 +0,009 21.3 C+ Tantau Avenue PM 22.4 c+ 22,7 c+ 23,0 c+ +0.2 +0.004 21,8 C+ 6, Wolfe Road /1·280 AM 12.4 8 12.8 8 12.8 8 +0.1 +0.007 13.0 8 Northbound Ramps 6 PM 10,8 8+ 13,7 8 14,3 8 +1.1 +0,024 15.7 8 7, Wolfe Road 11-280 AM 11.3 8+ 11.2 8+ 11.2 8+ +0.1 +0.014 11.2 8+ Southbound Ramps6 PM 10.3 8+ 11.0 8+ 11.5 8+ +0.7 +0.030 11,7 8+ 8, Wolfe Road I Val1co AM 13,6 8 19,1 8- 19,8 8- +0.3 +0,006 19,5 8- Parkway PM 28,1 C 60.0 E+ 65,5 E +2.4 +0.011 67.6 E 9, Vatleo Parkway I Finch AM 10.6 8 11.8 8 8,3 A N/A N/A 8,3 A Avenues PM 10,3 8 13,5 8 11,2 8 N/A N/A 11.3 8 10. Valleo Parkway I Tantau AM 8.9 A 11.9 8+ 12,1 8 -7,6 +0.002 12,1 8 Avenue I PM 12,2 8 17.2 8 16,9 8 ·0,6 -0,026 16,9 8 11. Stevens Creek AM 30.9 C 32.9 c· 33,0 c· +0.3 +0,003 33,S C, Boulevard I De Anza PM 34,9 c- 38.8 0+ 39.1 0 +0,3 +0,003 39,7 0 Boulevard6 12. Stevens Creek AM 18,1 8- 18,0 8- 18,0 8 -0,1 +0.005 18,0 8 Boulevard I Blaney PM 29.4 C 29,1 C 28,9 C ·0,1 +0.011 29,5 C Avenue 13. Stevens Creek AM 10.5 8+ 10,9 8+ 10,8 8+ +0.0 +0.005 10.8 8+ Boulevard I Portal PM 16,0 8 14,6 8 14.4 8 -0,2 +0.011 14,S 8 Avenue 14. Stevens Creek AM 8,1 A 8.3 A 8,3 A +0.0 +0.004 8,S A Boulevard I Perimeter PM 15.7 8 16.1 8 15,9 8 ·0,2 +0.011 15.9 8 Road 15. Stevens Creek AM 35.7 0+ 37,0 0+ 37,0 0+ +0.0 +0.006 37,3 0+ Boulevard I Wolfe Road· PM 37.8 0+ 42.9 0+ 43,9 0 +1.0 +0.016 4S,S 0 Miller Avenue6 16. Stevens Creek AM 30.5 C 30.4 C 30.4 C +0.4 +0.026 30,S C Boulevard I Finch PM 17.4 8 17.0 8 21,3 c+ +6.5 +0.252 20,3 C+ Avenue 17, Stevens Creek AM 19.4 8- 19.4 8· 19,5 8- -0,0 +0.013 19,6 8- Boulevard I Tantau PM 19.6 8- 20.6 C+ 19,6 8· -0.9 +0.002 19,6 8- Avenue -_._-~--~._~._--------- Hi fþ F[HR & PEI:RS ,...,,,....,,..,..,.,,..,, ~ TABLE ES-1 (CONTINUED) INTERSECTION LEVELS OF SERVICE SUMMARY Cumulative + Existing Background Project Project Peak ÓlnCrlt. ålnCrll Intersections Hour Delay' LOSt Delay' LOSt Delay' LOSt Delay' V/C4 Delay' LOSt 18. Stevens Creek AM 32.9 c- 34,1 c- 33.5 c- +1.1 +0,020 33,8 c· Boulevard 11-280 Ramps PM 42,0 D 46,1 D 46,5 D +2.1 +0.011 49.2 D 19. Stevens Creek AM 22.5 c+ 22,0 c+ 22.1 c+ +0.0 ·0,009 23,9 C Boulevard I Lawrence PM 25,9 C 26,7 C 26.4 C +0.1 +0.017 28.4 C Expressway fYVJ6 20. Stevens Creek AM 35,0 D+ 37,7 D+ 37.4 D+ ·0,2 -0,010 37.6 D+ Boulevard I Lawrence PM 38.8 D+ 39,2 D 40,0 D +0.9 +0.019 41,3 D Expressway (E)ß 21. Bollinger Road I Tantau AM 10,7 B+ 10,6 A 10,7 B+ +0.1 +0.001 10.7 B+ Avenue PM 10,2 B+ 10.0 A 10,1 B+ +0.1 +0.006 10,1 B+ Notes: 1 VVhole intersection weighted average stopped delay expressed in seconds per vehicle for signalized intersections. 2 LOS calculations performed using the 2000 Highway Capacity Manual (HCM) methodology. 3 Change in average critical movement delay between Background and Project Conditions. 4 Change in critical volume to capacity ratio between Background and Project Conditions. 5 Control delay, expressed in seconds per vehicle. is presented for the worst movement/approach for the unsignalized intersection. 6 Designated CMP intersection Significant impacts are highlighted in bold. iv fþ FEHR & PEERS !J"~U""IU r~OIS~(1.""S Omft Fmal CaldOQZ¿¡S PfdCG TlA DecomlJef 2005 1. INTRODUCTION This report presents the results of the traffic impact analysis (TIA) for the proposed Calabazas Place residential and retail project. The proposed project includes construction of 108 townhomes, 261 condominiums, and 120,000 square feet of retail space, The project will also remove 150,000 s,f, of vacant office space. The project site, located in the eastern area of Cupertino, is generally bounded by Interstate 280 to the north, Stevens Creek Boulevard to the south, Tantau Avenue to the east and is located on both sides of Vallco Parkway and Finch Avenue. The purpose of the analysis is to identify potential transportation impacts of the proposed development on the surrounding roadway system, and recommend appropriate improvements to mitigate these significant impacts, A map of the project site location is presented in Figure 1, Figure 2 shows the conceptual plan of the proposed project with access to the site from Vallco Parkway, Finch Avenue and Tantau Avenue, Existing and future conditions were evaluated with level of service calculations for the key intersections near the project site, Project impacts were estimated following the guidelines of the City of Cupertino and the Santa Clara Valley Transportation Authority (VTA), which is the congestion management agency for Santa Clara County, The analysis evaluated the operations of the following key intersections: 1, Homestead Road and Wolfe Road 2, Homestead Road and Tantau Avenue 3, Homestead Road and Lawrence Expressway· 4, Wolfe Road and Pruneridge Avenue 5, Pruneridge Avenue and Tantau Avenue 6, Wolfe Road and 1-280 Northbound Ramps· 7. Wolfe Road and 1-280 Southbound Ramps· 8, Wolfe Road and Vallco Parkway 9, Vallco Parkway and Finch Avenue 10, Vall co Parkway and Tantau Avenue 11, Stevens Creek Boulevard and De Anza Boulevard· 12, Stevens Creek Boulevard and Blaney Avenue 13, Stevens Creek Boulevard and Portal Avenue 14, Stevens Creek Boulevard and Perimeter Road 15, Stevens Creek Boulevard and Wolfe Road/Miller Avenue· 16, Stevens Creek Boulevard and Finch Avenue 17, Stevens Creek Boulevard and Tantau Avenue 18, Stevens Creek Boulevard and 1-280 Ramps 19, Stevens Creek Boulevard and Lawrence Expressway (W). 20, Stevens Creek Boulevard and Lawrence Expressway (E)· 1 fþ FEIIR & PEIoRS I'U~'~':A"O' ,.M'U"..n Draft Final Calabazcìs Place TIA DecernfJer 2005 - 21, Bollinger Road and Tantau Avenue . Designated CMP Intersection The operations of the study intersections were evaluated during the weekday morning (AM) and evening (PM) peak periods, Each intersection was evaluated for the following four scenarios: Scenario 1: Existing Conditions - Existing volumes obtained from counts, representing peak one-hour conditions during the morning and evening commute peak traffic periods, Background Conditions - Existing volumes plus traffic from approved but not yet constructed and occupied developments near the project site. This scenario assumes full occupancy of the vacant building on the site, Project Conditions - Background plus project trips from the proposed residential development. Cumulative No Project Conditions - Traffic from pending developments in the area will be added to the volumes from Scenario 2, Scenario 2: Scenario 3: Scenario 4: Scenario 5: Cumulative plus Project Conditions -Project-generated traffic added to Scenario 4 traffic volumes. The remainder of this report is divided into five chapters, The existing transportation system serving the site and the current operating conditions of the key intersections are described in Chapter 2, Chapter 3 evaluates traffic operations under Background Conditions for approved but not yet constructed local developments and occupancy of the office on the project site. Chapter 4 describes the method used to estimate the amount of traffic added to the surrounding roadways by the proposed project and its impacts on the transportation system under Project Conditions, This chapter also includes a discussion of site access, on-site circulation, and parking. Cumulative Conditions is described in Chapter 5, Finally, Chapter 6 presents the study results and conclusions, fp 2 FEHR & PEERS 'h~"O""'ð. ,h,"'JUT> LEGEND Study Intersection . ¡zz¡ Hom~5t~d Rd~ ;;! " C ~i Project Location @ ,¡¡ . u " ~ . ~ j o " " " ~ ~ ~ ;;! 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Piece \ Graphics \ CAD\No\l 05\ fig03_bikeroutes.dwg i ~ " ] ~ i " a PEERS OJ 5.!JLTANTS o N NOT TO SCALE FEHR & TRANSPORTATION No" 1', 2005 MJC N:\Projects\SJ05-795 Colobozo' LEGEND ~ Project Location @ Local Bus Route @> Express Bus Route A Limited Stop Bus Route m Bus Stop Ö N NOT TO SCALE EXISTING TRANSIT ROUTES FIGURE 4 m ~I .. .ð ~ o c ~ . ~ 5 23 m 2, m 81 Blvd. ~ « o ro ~ c ~ Homestead Rd i " t c ... PEE RS CONSIUJAN1.$ ColobOZQS Ploce\Grcphic:s\CAD\Nov 05\Fig04_trclnsi1.dwg ;:j ~ ~ 26 i .(26 ~I m 51 ;:j L ~ ~ ~ E o ~ 23 j ^ ~ c ro ii5 FEHR & TRANSPORTATION Nov 11, 2005 PC N:\Þrojects\SJ05-795 Ðmf( FlI1al Ca/dbazas Place TIA December 2005 . . . . . _ . . -- Route 182 is an express bus route between Palo Alto and the IBM facility on Bailey Avenue, This route operates two southbound buses between 7:00 am and 8:30 am, and two northbound buses between 4:45 pm and 6:30 pm with 30- to 45-minute headways, This route does not operate on weekends, Route 182 operates on Vallco Parkway, Wolfe Road, and 1-280 near the project site, Route 328 is a limited bus route from Almaden Expressway and Camden to the Lockheed Martin/Moffett Field transit center. Only on weekdays, this route operates once northbound between 6:00 am and 7:00 am, and once southbound between 5:00 pm and 6:00 pm, Route 328 operates on Lawrence Expressway near the project site, EXISTING INTERSECTION VOLUMES AND LANE CONFIGURATIONS The operations of the key intersections were evaluated during weekday morning (AM) and evening (PM) peak- peak-hour conditions. Per city guidelines, the AM and PM peak periods occur from 7:00 am to 9:00 am and 5:00 pm to 7:00 pm, respectively, Intersection operations were evaluated for the highest one-hour volume counted during each period, New traffic counts were conducted at all of the study intersections during the AM and PM peak periods in August and September 2005 (see Appendix A), At the time of the counts, the driveway opposite Perimeter Road on Stevens Creek Boulevard was closed due to the construction at the Marketplace development. Therefore, Year 2000 counts at the Stevens Creek Boulevard and Perimeter Road were used for the analysis. Figure 5 presents the existing AM and PM peak-hour turning movement volumes at the study intersections, Existing intersection lane configurations and traffic control devices are also shown on Figure 5, LEVEL OF SERVICE METHODOLOGY The operations of roadway facilities are described with the term level of service, Level of Service (LOS) is a qualitative description of traffic flow based on such factors as speed, travel time, delay, and freedom to maneuver. Six levels are defined from LOS A, as the best operating conditions, to LOS F, or the worst operating conditions, LOS E represents "at-capacity" operations, When volumes exceed capacity, stop-and-go conditions result, and operations are designated as LOS F, Signalized Intersections The level of service methodology approved by the City of Cupertino and the VT A analyzes a signalized intersection's operation based on average control vehicular delay calculated using the method described in Chapter 16 of the 2000 Highway Capacity Manual (HCM) (Special Report 209, Transportation Research Board) with adjusted saturation flow rates to reflect conditions in Santa Clara County, Control delay includes initial deceleration delay, queue move-up time, stopped delay, and final acceleration delay. The average control delay for signalized intersections is calculated using TRAFFIX analysis software and is correlated to a LOS designation as shown in Table 1, fþ 9 FEll" & {'nits "·~."O'''''ð' <O'<U"~'" LEGEND J . Turn Lane XX(YY) - AM (PM) Peak Hour Traffic Volumes IZZJ - Project Location . Study Intersection ~ - Traffic Signal -4 11~~dR.:i. -4 il ; <, ~I- jj 6' ~~~ !f!a --- --- -L79(75) -~~ ~~~ -Lt2(15) <o....œ --I¡¡~ -r.= 391 (542) + -- 523 f823) ,'79 (295) ,'0760) -~. -~ -1, 991'6~ -.J iI!lr 30 (33) J 515 555 :::::: 660 (840 _ §:B:§ ŒCDO 53 (88 T 207 25 , ~,,- C\ ~...... ~- ,,<0- :!iN<O ~<o_ ........ œ _<ON . Homestead Rd Lawrence Exp Prunendge Ave Wolfe Rd i 6' ¡¡; ~a~ ,:- S2....S2. ¡;:S ....œ¡l¡ .b 135 (146) ::a.~ L46 f'09) ~~.... N__ JIHI1. -435(517 -¡¡¡l -- 26 60) ,,356 (328) ""8(401) H_J\d. -~ ilHr 229 (335) dJ illHr 43!32)J 305 !660j - 35 21 134 274 =ï ¡¡!õ* 85 (128 T g~~ ::::..coß ....~ ........<0 ~~.... (þ~~ 0 ri erldge Ave Tantau Ave Wolfe Rd I 280 Nß Ramps ~ _~l\i' ~~ <0__ !e:::. $::::..::::.. -L 110 (37) ~~ N....<o ~¡:! * 695 (503) "<0_ -118(123) J -¡I.- ,64 (89) r 352 (311) 101 (55)J ì!- -~ I4ION8_po 63 (230 -- Hr 14(31 T ::eg¡~ ~~ 0....- N<O~ _<0 ;:Ii!) ,,:" PEAK HOUR TRAFFIC VOLUMES AND LANE CONFIGURATIONS - EXISTING CONDITIONS FIGURE 5a ..C~. 6011" CclQbazcs Plcce\Graphics\CAD\Nov 05\fig05_phtY_e~_col\.dw9 , ì . PEE RS 5t""e<1'C.........BJvd. SCALE FEHR & TRANSPORTATION Nov 11, 2005 MJC N:\Projects\SJ05-795 -; o , < . o NOT LEGEND .J Turn Lane fZZ] Project Location XX(YY) AM (PM) Peak Hour Traffic Volumes ~ Traffic Signal ~ Stop Sign ... - . Vall co Pkwy 'Finch A ...- ô is " ,,= ......"":.;:- -~ ~~~ N"C =~ ~~ ~_o (Õâ5(ê _N N_~ ~-- ~~2 N~ -=- L31 (247) ~:s!e. -1- 62 (16) ~¡i J-211 (255) ~~ ~ :::~ _N= +1(1 ~~ ==60(119) ~-- .....r--It) :::::::435 (819) J ¡¡¡I J¡¡¡~ -3(12) + -w- 1 (6~ r¡=11 (97) ~ ,26(7) 0(1: -¡ I II ~ r¡= 274 (36a) Io2I1OSBPam~- .-... T!--I ìlH- .-... -1¡ ~ .-... llr ~CrHi._, --.J iH\r 633 (434) dJ \\r 56 (4) .J 34 (66¡--I 242 (269) ::::!J 111- 29 (108) == 2,jg- 31517B8! = 219 (3SS) ==¡¡ 223, i~i ~ 5( , =~N iô¡::"ã3 ~ 10(9)T -- MN- 82 506 =ï ~~1i -m- -~= ;;:::.v """ ~-~ M ~;-m ~= ~ ~" =~ ::: M '*"~ ~~ =M IIIII1BB . 13 Stevens Creek Blvd /Portal Ave 4 Stevens Creek Blvd ¡Perimeter R· 5 Stevens Creck Blvd !Wolf 16 Stevens Creek Blvd /Flnch A F:"~$ Cõíñ:"Ñ ~œË ~Ñg ~~o ~- =-= L61 (79) L 64 (69) ~~ -= --- --- -1-" (39) ~~~ -L'B3('2') -~ L'6('0) ~~~ O-N ~-M m- mm~ == 936 (813) ~~~ =996 (904) -~- :::::: 1,432 (1,092) MN_ :::::: 703 (664) -~ == 723 (864) Jjl ,76 (264) -jl. ,35 (106) .-II- , 32 (94) Jill r¡=BB (193) .-Ilk- ,273 (61) --- ltr --- ,I- --- + -;:703B) :::!J ìlll- --- lr 119 (170j--l 4B (103j --I 20 (120¡ d! 13 (24¡=01. 482 &,,169 :::::::: ~ 623 ~,,3B2 = mNN 1,075 {1,485 --- ",~m 394 (748 == ¡glij'W 450 j99B - >OM 3(71, -~- 6(51, t::-(\ II') 9(21 T N~~ 64 (59 T _M- 25 (64 "l !!l!2. ~-~ ~-'" ",_m --", M~ 0=0 N_M mN= ~m ....;!..... N~ -- -~ 18 Stevens Creek Blvd II 28058 19 Stevens Creek SB Lawrence Ex 21 Golllnger Rd ¡Tantau Ave "'- ,-.~ ,,- ~>O ;::ß m~~ ~'" ~- !2.~ -- L,5, (33) -~o :::..t::. ~- "'-~ :::: 936 (1,015) ",- .!;:: 309 (316) M~ N_~ "'''' ON -- == 773 (807) -II-l. IF 263 (600) ~m = 1,796(1,410) M_ -L 93 (69) .-Ilk- ,77 (122) Jl =,,'22(869) -- -L - 899 (639) --;;(1--1 _..~- lr S\OwnOC__ ( -::98) dJ -ï1!- ~-~ + 5391719! == ,077 (1,454) == 73 (72) ..J 560 (96 :::::: 181513, ON 790 (BOO) == 26 (39 , iÖ6)6'" ~~ - 563 (1,602) = 2!~g !2!!1!2.. -= o=~ ~~ ~ "'~~ ~ O~= :8 ~ - PEAK HOUR TRAFFIC VOLUMES FEHR & PEE RS AND LANE CONFIGURATIONS - TRANSPORTATION CONSULTANTS EXISTING CONDITIONS Nov 11, 2005 MJC FIGURE Sb N:\Projects\SJ05-795 COlobi:lZO$ Ploce\Grophics\CAD\NolI 05\fig05_phtll_cx_con.dwg Dlelft FilJa/ Cd/alJdzds Plélce TIA Decel/lber 2005 - . .. . . - TABLE 1 SIGNALIZED INTERSECTION LEVEL OF SERVICE DEFINITIONS USING AVERAGE CONTROL VEHICULAR DELAY Average Control Delay per Vehicle Level of Service Description (Seconds) A Operations with very low delay occurring with favorable S 10.0 progression and/or short cycle lengths. B+ Operations with low delay occurring with good progression and/or 10,1 to 12,0 B short cycle lengths. 12,1 to 18.0 B- 18,1 to 20.0 C+ Operations with average delays resulting from fair progression 20,1 to 23.0 C and/or longer cycle lengths, Individual cycle failures begin to 23,1 to 32,0 C- appear. 32,1 to 35,0 D+ Operations with longer delays due to a combination of 35,1 to 39,0 D unfavorable progression, long cycle lengths, and high V/C ratios. 39,1 to 51.0 D- Many vehicles stop and individual cycle failures are noticeable. 51,1 to 55,0 E+ Operations with high delay values indicating poor progression, 55,1 to 60.0 E long cycle lengths, and high V/C ratios, Individual cycle failures 60,1 to 75.0 E- are frequent occurrences. 75,1 to 80,0 F Operations with delays unacceptable to most drivers occurring > 80.0 due to over-saturation, poor progression, or very long cycle lengths, Source: VTA's CMP Traffic level of Service Analysis Guidelines, June 2003, and Transportation Research Board, Highway Capacity Manual, 2000. The level of service standard (i,e" minimum acceptable operations) for all of the signalized study intersections in the City of Cupertino is LOS D except at two locations, According to the City's General Plan, the Stevens Creek Boulevard/De Anza Boulevard and the De Anza Boulevard/Bollinger Road intersections must maintain LOS E+ operations (with no more than 60 seconds weighted average control delay), The same operations methodology is used by the Valley Transportation Authority (VT A) to analyze traffic impacts for Congestion Management Program (CMP) facilities, The level of service standard for CMP-designated intersections is LOS E, However, in Cupertino, the City's thresholds are used to identify intersection impacts, The City of Santa Clara level of service standard is LOS D for local signalized intersections and LOS E for designated CMP intersections, Four of the study intersections are located in the City of Santa Clara: Homestead Road and Lawrence Expressway, Stevens Creek Boulevard and 1-280 ramps, Stevens Creek Boulevard and Lawrence Expressway (W) and Stevens Creek Boulevard and Lawrence Expressway (E), fP fEHR & PEERS u..~~n"II'" (Go'~U~~' 12 Of aft FlfJéJl CaldbdzdS Placo TlA Oecemr)('f 2005 Unsignalized Intersections Operations of the unsignalized study intersection of Vallco Parkway and Finch Avenue were evaluated using the methodology contained in Chapter 17 of the 2000 HCM, Level of Service ratings, for stop-sign controlled intersections, are based on the average control delay expressed in seconds per vehicle, At two-way or side street-controlled intersections, the control delay is calculated for each movement, not for the intersection as a whole, For approaches composed of a single lane, the control delay is computed as the average of all movements in that lane, For all-way stop-controlled locations, a weighted average delay for the entire intersection is presented, Table 2 summarizes the relationship between delay and LOS for unsignalized intersections, LOS D is the minimum acceptable level of service for unsignalized intersections, TABLE 2 UNSIGNALIZED INTERSECTION LEVEL OF SERVICE DEFINITIONS USING AVERAGE CONTROL DELAY Average Control Delay per Vehicle Level of Service Description (Seconds) A Little or no delay S 10.0 B Short traffic delays 10.1 to 15.0 C Average traffic delays 15.1 to 25.0 D Long traffic delays 25.1 to 35.0 E Very long traffic delays 35,1 to 50.0 F Extreme traffic delays with intersection capacity exceeded > 50,0 Source: Highway Capacity Manual. Transportation Research Board. 2000. EXISTING INTERSECTION LEVELS OF SERVICE Existing intersection lane configurations and peak-hour turning movement volumes were used to calculate the levels of service for the key intersections during each peak hour, The results of the LOS analysis for Existing Conditions are presented in Table 3, The corresponding calculation sheets are contained in Appendix B, The results of the LOS calculations indicate that all study intersections currently operate at acceptable levels of service (LOS D or better). fþ FEHR & PEEIlS 1... ....A1 O.tUW.,..,t 13 olaft Filw! Calabazas Place TlA Deccmbcr 2005 TABLE 3 EXISTING INTERSECTION LEVELS OF SERVICE Intersection Intersection Peak Hour' Count Date Control Delay' LOS' 1, Wolfe Road / Homestead Road AM 08/05 Signal 26.5 C PM 08/05 43.0 D 2, Homestead Road I Tantau Avenue AM 09/05 Signal 19,7 B- PM 09/05 19,8 B- 3, Homestead Road I Lawrence Expressway4 AM 09/05 Signal 42,7 D PM 10/04 50,1 D 4, Wolfe Road / Pruneridge Avenue AM 08/05 Signal 21,3 C+ PM 08/05 32,5 C- 5. Pruneridge Avenue I Tantau Avenue AM 09/05 Signal 21,1 C+ PM 09/05 22.4 C+ 6, Wolfe Road /1-280 Northbound Ramps' AM 08/05 Signal 12.4 B PM 08/05 10.8 B+ 7. Wolfe Road /1-280 Southbound Ramps' AM 08/05 Signal 11,3 B+ PM 08/05 10.3 B+ 8, Woife Road / Vallco Parkway AM 08/05 Signal 13,6 B PM 08/05 28,1 C 9.vallco Parkway / Finch Avenue AM 08/05 Side-Street Stop 10.6 B PM 08/05 Control 10.3 B 10.vallco Parkway / Tantau Avenue AM 08/05 Signal 8,9 A PM 08/05 12,2 B 11, Stevens Creek Boulevard and De Anza AM 08/05 Signal 30.9 C Boulevard4 PM 10/04 34,9 C- 12, Stevens Creek Boulevard / Blaney Avenue AM 09/05 Signal 18,1 B- PM 09/05 29.4 C 13, Stevens Creek Boulevard / Portal Avenue AM 09/05 Signal 10,5 B+ PM 08/05 16.0 B 14, Stevens Creek Boulevard / Perimeter Road AM 01/00 Signal 8,1 A PM 01/00 15,7 B 15. Stevens Creek Boulevard / Wolfe Road-Miller AM 08/05 Signal 35.7 D+ Avenue4 PM 08/05 37.8 D+ 16. Stevens Creek Boulevard I Finch Avenue AM 08/05 Signal 30,5 C PM 08/05 17.4 B 17. Stevens Creek Boulevard I Tantau Avenue AM 08/05 Signal 19.4 B- PM 08/05 19.6 B· fþ 14 FrHR & PEERS ........0....'0..0.\"".-" ... 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Olaft Final CalafJdZaS P/c1Ce TlA OccelìJlJcr 2005 - Warrant 6 - Coordinated Signal System, This warrant is not met because the adjacent traffic control signals - Stevens Creek Boulevard I Finch Avenue is -850 ft, Vallco Parkway I Wolfe Road is -1,280 ft, and Vallco Parkway I Tantau Avenue is -1,065 ft - are close enough to provide sufficient progression, Warrant 7 - Crash Experience, This warrant is not met because the frequency of crashes correctable by a traffic signal at this location is less than the minimum five accidents within a 12-month period, Only one accident occurred in 2004, This warrant needs to satisfy three criteria; therefore, the remaining criteria were not considered, Warrant 8 - Roadway Network, This warrant is not met because neither street is considered a major route, For this warrant to be satisfied, a minimum of 1,000 vehicles per hour must be entering the intersection of two or more major routes, In conclusion, this intersection does not meet any of the MUTCD warrants for traffic signal installation. A multi-way stop warrant analysis was also conducted for the Vallco Parkway and Finch Avenue intersection, Based on the current daily volumes and accident data, all-way stop control is not warranted at this intersection, FIELD OBSERVATIONS Field observations of the study intersections were conducted during the morning and evening peak hours in September 2005, The intersections were generally observed to operate at the calculated levels of service for each peak period, No significant congestion was noted on Wolfe Road, Vallco Parkway, Pruneridge Avenue and Tantau Avenue, During field observations the fOllowing lanes were closed for construction: · The eastbound through lane adjacent to the median on Stevens Creek Boulevard was closed between Wolfe Road and Finch Avenue but, the left tum pocket remained accessible, · The westbound through lane adjacent to the median on Stevens Creek Boulevard was closed between Finch Avenue and Wolfe Road but, the left turn pocket remained accessible, · The northbound driveway for the shopping center at Perimeter Road and Stevens Creek Boulevard was closed for construction, The lane closures near Wolfe Road and Stevens Creek Boulevard did not adversely influence intersection operations, The remaining two lanes in each direction on Stevens Creek Boulevard did not queue back through adjacent intersection to affect operations between Finch Avenue and Perimeter Road. During the closure of the northbound approach at the Perimeter Road and Stevens Creek Boulevard intersection, motor vehicles used the alternate shopping center access of Stevens Creek Boulevard and Portal Avenue, During the PM peak hour, the general travel pattern is eastbound on Stevens Creek Boulevard and 1-280, and southbound on Wolfe Road and Lawrence Expressway, Congestion was observed near Stevens Creek Boulevard, 1-280 and Lawrence Expressway, The vehicles using the westbound left turn pocket and making an eastbound right turn to access southbound 1-280 (Calvert Drive) from Stevens Creek Boulevard blocked the westbound through lane adjacent to the median and eastbound through lane adjacent to the curb. respectively, During this time period, the on-ramps to southbound 1-280 backed up with substantial queues, but none of the queues interfered with surface street operations, There was also extensive queuing along Stevens Creek Boulevard between the Lawrence Expressway and 1-280 ramp intersections, The queuing did not affect signal operations however. Slowing due to weaving was also observed along westbound Stevens Creek Boulevard between the southbound Lawrence Expressway off-ramp and the northbound 1-280 on-ramp, fþ FEll" & PEERS ....~~UUIlG. <e.'"'f'.'1 16 Draft Fl!JéJl CalabazcJs Place T/A December 2005 3. BACKGROUND CONDITIONS This chapter discusses the operations of the key intersections under Background Conditions, Background Conditions are defined as conditions prior to completion of the proposed development and serve as the basis to identify project impacts. Traffic volumes for Background Conditions comprise existing volumes plus traffic generated by approved developments in the area including occupancy of the existing office building on the project site. The results of the level of service analysis for Background Conditions are presented in this chapter, BACKGROUND ROADWAY IMPROVEMENTS Prior to project completion, no future roadway improvements will be constructed at the study intersections, Thus existing intersection lane configurations were used for the Background Conditions analysis, BACKGROUND TRAFFIC ESTIMATES Traffic volumes for Background Conditions were estimated by adding existing volumes to traffic generated by approved but not yet constructed and occupied developments in the study area. The list of approved projects, presented in Appendix D, was developed with input from City of Cupertino planning staff and Cities of Santa Clara and Sunnyvale. Traffic from the approved developments was obtained from traffic impact reports or estimated with ITE trip generation rates and standard engineering practice, The trips associated with each development were then assigned to the roadway network based on the relative locations of complementary land uses and existing and estimated future travel patterns. Background Conditions also includes full occupancy of the vacant office building located on the project site. Traffic from this use was included since the building could be occupied at any time by an appropriate tenant without substantial city review, and the current roadway system was originally sized to accommodate this use, The traffic generated by the existing office building was estimated using rates published in Trip Generation (7th edition) by the Institute of Transportation Engineers (ITE), The existing use consists of approximately 150,300 square feet of office space, If the existing building was re-occupied, it would generate approximately 1,826 daily, 260 AM peak-hour trips (229 inbound and 31 outbound) and 247 PM peak-hour trips (42 inbound and 205 outbound), The trip generation estimates for the office use are presented in Table 4, TABLE 4 EXISTING OFFICE TRIP GENERATION RATES AND ESTIMATES AM Peak Hour PM Peak Hour Use Dally In Out Total In Out Total Trip Rates Office1 12.15 1,52 0,21 1,73 0,28 1,36 1,64 Trip Estimates Existing Office (150.3 ksf) 1,826 229 31 260 42 205 247 Notes: 1 Trip rates are expressed as trips per dwelling unit (d.u.) or per 1,000 square feet (ksf). 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G>N 9>f'" ¡¡; g: æ ~ om i\):"'" :""'0 - - '< i.:""'S'~ N ~~g.~ ~~ g>.g ~ m::3-' $6ta- C.O¡;¡ S'þ)CD r- ø~g, )0)0 00 0'" oc;> 0 '" ,,0 + + In 8 0; . => c c.=> .~ .." m " ¡¡o~ m m " ~ '" c ¥ ¡ , ¡:;- .....~¡g ~...:.... ~Œ'-;::- -- '!£'æ.S2. -~~ ~m~ -L109(121) =Nm J... 12 (16) ==~ ~~~ - ¡jl~ ¡:;::414 (614) + -592 (1,009) ,200 (375) ,'40(66) -~ -~ -j¡ 103117~ -l ilHr 30 (33! J 560 604 :::::::: 744~.oo4 ~ ~~~ 231 34 , ~g~ 7(92 T £1q~ -- ~=- ='=«> ~== _~o ~ Nm~ ~ . Homestead Rd Lawrence Exp 4 Prunendge Ave Wolfe Rd Ñ 8 ~ -=- 0)- :;¡:d~ --~ ':!'NS2. è')cne. ~N= 1::,35(,46) --~ L47(112) o:o'r.t~ ....N.C\I N~_ N~~ JII¡~ - 559 (732) -¡Ill -26(60) If' 399 (379) If' 119 (408) ~8; (516) dJ iHHr -- ilHr 43 ¡32¡ J 384 ¡35m = 35 21 156 305 ---. ~~~ 86 (128 T m=g¡ =-~a §.~=- 8~ ~'=«> "'~= N(i!;(\ N~ N '" ,.; erldge Ave Tantau Ave 6 Wolfe Rd 1-280 NB Ramps ¡¡; -- ~~ _O~ !!1=- =N~ =-- ~= (\ ~O) J... 113 (39) =0 * 696 (603) ~'" ~-- --:--1818(133) J¡¡ -i~ ,72 (94) r 423 (847) 101 (SS¡J ,I- ","-oM -~- 74 (233 -- Hr 14(31 T ~~'" N~~ "" -~- 0- NN (\ ~12 '<t_~ =-~ mN ~~ "'- PEAK HOUR TRAFFIC VOLUMES AND LANE CONFIGURATIONS - BACKGROUND CONDITIONS FIGURE 6a LEGEND J . Turn Lane - XX(YY) - AM (PM) Peak Hour Traffic Volumes ~ . Project Location 0 Study Intersection ~ - Traffic Signal -4 !1om".,~~" f<.d,~ I ~ " - :::: II '--: ~I !I , , , . 5t=""c,~e¡"d i ~ - o ðoil':"!Jer~ 05\f1g06_phtv_background.d...g PEE RS ONSUlTANTS Ploce\Grapnics\CAD\Nov NOT TO SCALE fEHR & TRANSPORTATION Nav 11,2005 t.lJC N:\Projects\SJ05-795 Colabatos LEGEND .J Turn Lane C22J Project location XX(YY) AM (PM) Peak Hour Traffic Volumes ~ Traffic Signal ~ Stop Sign - 9 ValleD Pkwy Fmch A . I - "' Ñ 1õ ~¡;;. Ñ~~ g~- ~~~ --" î~![ ~-=- ..-- -~ ¡¡¡OJ ;;;§2 L 112 (425) J.. 62 (16) ~~;- rn -L 225 (275) ..m .. N _N= == 103 (310) +'(') --f¡ÌI'íL =551 (1.119) J¡¡¡~ -3(15) + -jjl- 1 (6) J ¡¡II r¡= 45 (178) ~ ,28(26) 0(1) r¡= 290 (393) 14\lQS8F1o/nøO- Ilr ,-- ìj }- -- -{¡ ~ v.....PI<wy llr -'er.oollMl. illlI r 633 (434) ,d¡ 30 (438¡--1 56 (4) .J 44 (1~~ --1 244 (2791 :dJ ~ 1(13- 150 (228) = 20- 456 h'.D44 =: 306 (580) =¡I 14(198 , íñ~ë:r co....F: 47 (23 , ~"N ~~~ ~t:. "N' 31(48)T ~- ~,,- 9 (532 :::¡ ~ ~"".::::. --"N ~..,. m ::::.'" .. N ~::::'r-. :g.. -~~ N "m =- ...~:: -" - '. 12 Stevens Creek Blvd /8 13 Stevens Creek Blvd ¡Portal Ave 14 Stevens Creek Blvd IPcrIITlcter R 15 Stevens Creek Blvd ¡Wolf, Ñ 6' "" œ¡;¡,::- -=- Õ) íñ ß.éR ~! R:::.~ __0 L 70 (85) !£.ã)J:::. L 64 (89) _N_ L26(44) -:g- --- J.. 15 (55) ~~:8 -L 201 (258) !ij!-N =-= "N m...:g ==1.078(1.171 ~" :=1.157(1.275) N~_ == 1,548 (1,346) ",,- =744 (748) NN :=800 (1.106) Jll r= 114 (290) -jl- ,37 (108) -!I- ,32 (94) Jill r¡= 119 (229) .-1[1. ,273(81) --~ llr --~ il- --~ + -m~~ :! ìlll- --- lr 122(1md 48(1md 37 (213) dJ 30134¡d 658 &1;4 = m.§~ 817 ~'.7 = g:¡~~ 1,223 (1 .6B9l- =..~ 1õ§'", 539J,.190 = """ (71, 0(70 , 9(21 T N_ 87 (82 T = ~ 7(64 , """- ~- ~-= =-<> ;;-8' 8~ 0== -" -~" N=_ -- -= 17 Stevens Creek Blvd Tantau Av, 18 Stevens Creek Glvd I 28058 19 Stevens Creek/58 Lawrence Ex. '0 Stevens Creek NB Lawrence 1 Bollinger Rd ITantau Ave ~;¡:- """ ~¡g i~ §'". - " L280 (151) s.~ -" ~~a :=.~ -- == 1,120 (1,390) ,,= L 342 (323) ..0 =647 (1.064) N_= m_ 0" _<0 ~~L IF 263 (600) ..- = 2.064 (1.765) ~;: -L 98 (70) .-1[1. ,77(122) Jl = 1,242 (1,058) -L. -912(894) --- --~ lr s-..c.r.-_ ( -:7629¡ ,d¡ -111- -~ 107 (71¡ d + 627 ¡91~ :::: ,214(1,701) = 73 (72) --1 650 &'.'80 = 224 89 , Õ"Ñ 820 (852) :::: 1(45, ~:;¡¡¡¡ ~~ - 629 (1,848 = ~(O8' -= ~fa(CI ¡r" ~- N~ =":g ~~.... PEAK HOUR TRAFFIC VOLUMES FEHR & PEE RS AND LANE CONFIGURATIONS· TRANSPORTATION CONSULTANTS BACKGROUND CONDITIONS Nov 11, 2005 MJC FIGURE 6b N:\Projec:ts\SJ05-795 Colobozos Ploo:::e\Gropr.jo:::s\CAD\Nov 05\fig06_phtv_bQo:::kgro~nd,d"'9 Drc¡(/ Fmal CalabÐZQS Place TIA .occef/1ber2005. .... ....... . ~ 4. PROJECT CONDITIONS The impacts of the proposed residential development on the surrounding roadway system are discussed in this chapter. First, the methodology used to estimate the amount of traffic generated by the project is described, Then, the results of the level of service calculations for Project Conditions are presented. Project Conditions are defined as Background Conditions plus net new traffic generated by the proposed project. A comparison of the intersection operating levels under Background and Project Conditions are presented, and the impacts of the project on the study intersections are discussed, Site access, on-site circulation, parking, and neighborhood traffic are also addressed, PROJECT TRAFFIC ESTIMATES The amount of traffic added to the roadway system by a proposed development project is estimated using a three-step process: (1) trip generation, (2) trip distribution, and (3) trip assignment. The first step estimates the amount of added traffic to the roadway network. The second step estimates the direction of travel to and from the project site, The trips are assigned to specific street segments and intersection turning movements during the third step, The results of the process for the proposed Calabazas Place project are described in the following sections, Trip Generation The amount of traffic added to the surrounding roadway system by the proposed development was estimated by applying appropriate AM and PM peak hour trip generation rates published in Trip Generation (7th Edition) by the Institute of Transportation Engineers (ITE), Reductions for internalization were applied per VTA guidelines, Some of the trips generated by the proposed retail uses are pass-by trips. Pass-by trips represent vehicles that are already on the adjacent street (Le, Stevens Creek Boulevard) and are not new trips on the overall street system, Drivers simply stop off at the project site on their way to/from their origin/destination, A pass-by trip reduction of 25 percent was applied to the retail trip estimates, The peak-hour trip generation rates and trip estimates are presented in Table 6, By itself, the proposed residential and retail project is estimated to generate 7,502 net new daily trips, 272 net new AM peak-hour trips (96 inbound and 176 outbound) and 694 net new PM peak-hour trips (369 inbound and 325 outbound), The net change in trips for daily and each peak-hour period was calculated by subtracting the trips generated by the existing office building from the trips generated by the proposed residential and retail development. The existing building will be demolished prior to construction of the proposed development. The existing use consists of approximately 150,300 square feet of office, Per Table 4, the existing use is estimated to generate 1,826 daily, 260 AM peak-hour trips (229 inbound and 31 outbound) and 247 PM peak-hour trips (42 inbound and 205 outbound). Therefore, the amount of net-added traffic by the proposed project is estimated to be a net increase of 5,676 daily trips, a net increase of 12 AM peak-hour trips (133 fewer inbound/145 added outbound) and a net increase of 447 PM peak-hour trips (327 added inbound/120 added outbound). Table 6 presents the net new trips, Trip Distribution The directions of approach and departure for the project traffic were estimated based on the existing travel patterns in the area and the relative locations of employment centers, In addition, Journey to Work information provided in the Census Transportation Planning Packet (CTPP) was used to help determine the trip distribution, 23 fþ FE/I. & PIERS ......o"'~,,~. <0.""'"'' Orclft Fllkl/ Cala/)azéJs Ploce TIA OecemhG"r2005 .... ........ _.. . ..... ~ Creek Boulevard between Tantau and Finch Avenues, The intersection levels of service calculations include these changes, Intersection levels of service were calculated wilh the nel traffic added by the proposed project to evaluate the operating conditions of the intersections and identify potential impacts to the local roadway system, The results of the intersection level of service calculations for Background and Project Conditions are presented in Table 7, This lable also shows the changes in critical delay and volume-Io-capacity ratio (V/C) due to the addition of project traffic, Critical turning movements dictate how an intersection operates; therefore, Table 7 presents the change in critical VlC, and delay, In most instances, slight improvements in critical delay are reported, This is due to the method the program uses to allocate green time to the various tuming movements, All of the key intersections are projected to operate at the same or better levels of service as Background Conditions with the proposed project. The levels of service calculation sheets are included in the Appendix B, VALLCO PARKWAY OPERATIONS As part of the project, Vallco Parkway will become a two-lane roadway east of Finch Avenue with left-turn lanes and angled parking provided on the south side, The estimated daily volumes on this portion of Vallco Parkway are approximately 7,000 vehicles, A two-lane roadway with parking has a capacity of 10,000 to 12,000 vehicles per day before excessive delays occur for the driveways or drivers accessing the parking spaces, As shown in Table 7, the intersection of Vallco Parkway and Finch Avenue would operate at LOS B or better with the change to all- way stop control. Under Project Conditions, traffic volumes at the unsignalized Vallco Parkway and Finch Avenue intersection would not meet the minimum warrant criteria for signalization during either the AM or PM peak hours, The signal warrant worksheets are included in Appendix C, A multi-way stop warrant analysis was not conducted since future hourly volumes cannot be determined, However, the all-way stop control at the Vallco Parkway and Finch Avenue intersection would provide drivers with a transition in the street's character from a thoroughfare to a two-lane street with angled parking, INTERSECTION IMPACT CRITERIA Signalized Intersections Implementation of the proposed project would result in a significant impact if the addition of project traffic causes one of the following: 1, The level of service at a Cupertino-monitored intersection operating at LOS D or better under Background Conditions to deteriorate to LOS E or F; or 2, An increase in the critical movement delay at a Cupertino-monitored intersection operating at LOS E or F under Background Conditions by four (4) or more seconds and an increase in the critical V/C ratio by 0,01 or more; or 3. The level of service at the Stevens Creek BoulevardlDe Anza Boulevard intersection to be LOS E or worse with more than 60 seconds of average vehicle weighted delay, or 4. Degradation of the level of service at a CMP-monitored intersection operating at LOS E or better under Background Conditions to LOS F; or 5, An increase in the critical movement delay at a CMP-monitored intersection operating at LOS F under Background Conditions by four (4) or more seconds and an increase in the critical V/C ratio by 0,01 or more, According to these criteria, the project will not cause a significant impact to any of the key signalized intersections, fì> FElIR & PnRs u.ur~.'A"O. (~.\U\f~'''¡ 25 Draft Fllw/ C¡/alJéJzas Place TIA Doccn¡I)CI 2005 TABLE 6 PROJECT TRIP GENERATION RATES AND ESTIMATES Dally AM Peak Hour PM Peak Hour Use Rate Trips Rate In Out Total Rate In Out Total Proposed Retail (120 ks!) 63,71 7,645 1.46 107 68 175 5.88 339 367 706 Mixed-use Reduction (from below) -298 -12 -12 -24 -14 -14 -28 Pass-by Reduction (25%) -1,837 -19 -19 -38 -85 -85 -170 Net Retait Subtotal (A) 5,510 76 37 113 240 268 508 North TownhomeslCondos (156 d,u,) 6,01 937 0.47 13 61 74 0,56 58 29 87 West Condos (95 d,u,) 6.46 614 0,53 9 41 50 0,61 39 19 58 East Condos (118 d,u,) 6,26 739 0.50 10 49 59 0,58 46 23 69 Mixed-Use Reduction (13%) -298 -12 -12 -24 -14 -14 -28 Net Residentiat Subtotat (8 1,992 20 139 159 129 57 186 Proposed Use Onty (A + 8 7,502 96 176 272 369 325 694 Existing Office Building (150,3 ksf) (C) 12,15 1,826 1,73 229 31 260 1,64 42 205 247 Net New Project Trips (A + B - C) 5,676 -133 145 12 327 120 447 Notes: 1 Trip rates are expressed as trips per dwelling unit (d.u.) or per 1,000 square feet (ksf). Source: Institute of Transportation Engineers. Trip Generation, 7th Edition, 2003. The major directions of approach and departure form the trip distribution pattern for the project, and are illustrated on Figure 7, Most project traffic will approach and depart the site using Wolfe Road north and south and 1-280, Trip Assignment The project trips generated from the residential development were assigned to the roadway system based on the directions of approach and departure discussed above. The trip assignment accounts for the southbound through restrictions on Finch Avenue and Tantau Avenue. Figure 8 shows the residential and retail project trips assigned to each turning movement by intersection, Figure 9 shows the peak-hour trip assignments for the net new project trips (i.e" proposed project less the traffic associated with the existing on-site office building), The net new project trips from Figure 9 were added to background traffic volumes to establish intersection volumes for Project Conditions shown on Figure 10, PROJECT INTERSECTION LEVELS OF SERVICE The project proposes several roadway network changes, These changes include removing one through lane in each direction on Vallco Parkway, changing the Vallco Parkway and Finch Avenue intersection from a two-way stop-controlled intersection to all-way stop-controlled, and removing one westbound through lane on Stevens fþ FEliI\ & PEERS aU~'''UUð. (.ð.'~l1"'f 24 ~3%(7%)[3%] LEGEND 2%(3%)[5%] . Study Intersection . . IZZJ Project Location X%(Y%)[Z% . Residential(Office)[Retail 1( . Project Distribution .:; . ~ . ~ 3%(3%)[2%] . . 5%(8%)[10%] . . 25%(25. %)[15 ~ ~ %] - t 5%(7%)[7%] @ N NOT TO SCALE PROJECT DISTRIBUTION FIGURE 7 ~ ;;! -" ~ j > . ~ " 2%(2%)[3%] BOlllnger~..-<IIII( ~ 15%(7%)[15%] Homestead 18%(6%)[8%] ~ !! :> 2%(5%)[5%] . .. 1 ~ ! t 1%(1%)[1% g . ¡¡; 1%(10% [11%] . . Stevens Cr~k Blvd. ~%(0%)[3%] t 1%(1%)[2%] PEE RS (QNSULT~!U.s. Calobo%aS Place\C""pnies\CAD\Nov 05,\f¡g07_trlp_dist,dwg ;;! J¡ . E c 0" ~ ~ ~ fEHR & TRANSPORTATION Nav 11, 2005 MJC N:\Projecls\SJ05-795 ~~ -~ ~- L3c ¡l ,7(26) -~ "-~ - 0(11- It (5)ì lr 4(14, = Nil) ::.:!.. -N ~N ~- N ~ Homestead Rd Lawren - III .. ¡¡; ~ - -4(16) ~ .., ¡ -! -~. ~ - - 5¡'0¡~ I 515- " ~ ~ N ., lIB III III .. ¡¡; 5- ~ ~ ~ ,2(9) - ,3(14) ¡ ¡ ~oorid¡¡.FIcI -I-aONBf\atnpO tr tr = M1õ N- !e!:? -., ~ ~~ - NN - RESIDENTIAL PROJECT TRIP ASSIGNMENT FIGURE Sa LEGEND J . Turn Lane XX(YY) - AM (PM) Peak Hour Traffic Volumes LZ.ZJ - Project Location . Study Intersection ~ > ~ ~... 1 < 0 1 ~ . 8; 0 Steve,,~ e....". Blvd. ... " ðc;¡'n, ColQbozas Ploce\Graphics\CAD\Nov 05\f1g08_res_pta.dw9 PEE RS CONSUlTANli SCALE FEHR & TRANSPORTATION Nov 11, 2005 ~JC N:\Projects\SJ05-795 NOT LEGEND --' Turn Lane IZZJ Project Location XX(YY) AM (PM) Peak Hour Traffic Volumes ... . 9 Vallco Pkwy ¡Finch A I I ... '" ~ _0 0_ "''' -- L36 (69) ~ L2(3) -.... ~.=. o¡ "'''' -40~21) ...." - -19(36) ¡ ¡l ,"(5) ,'5'9) Jj l-. ,2(5) I-2tIOSB~ - ,-- -- -- --- 11 (44), Ir Ir lr 18 (33) --1 ì Î 141431- 11 (41)- !§: ~ <1;~ 4771, S'Œ' 31(14), ~ !:e.rl '" -= '" ° ¡;J" ='" '" .... III l1li Creck Blvd /Portal 14 Stevens Creek Blvd IPcrrm 15 Stevens Creek Blvd I 16 Stevens Creek Blvd Finch -<> L24(35) ~i L1(10) ,,"'- ....- - 27 (55) - 27 (55) - 27 (55) ....,,'" -20(52) ,,- -16(69) JIl ,10(25) Jl ,"(58) --- ¡;:;;;;c;;;¡;'_ --- --- --- 16 (60)-- 16(60)_ 16(60)- 21'0¡--1 Ir 25 (85) --1 1550 - ~ 1(5)- ....... -- .... 17 Stevens Creek Blvd ¡TanIa 18 Stevens Creek Blvd 11-280 ... - --- - 1 Bollinger Rd Tantau Ave ' , -~ "'- -- L4(22) Pi -- "" -30(109) -30(109) -9(31) " L3(10) Jl -26(87) l-. --- s_...CrMI<_ --- --- - ..... M 1 (51--1 II 10~¡- 10 (30) 10(30) Î 19(69 - E 39 , ~ 4(9, "0 o¡ FEHR & PEE RS RESIDENTIAL TRANSPORTATION CONSULTANTS PROJECT TRIP ASSIGNMENT Nov 11, 2005 t.4JC FIGURE 8b N:\PrOjects\SJ05-795 Colobozos Ploce\Croph¡cs\CAD\Nov 05\fig08_res_pta.Clwg î§: L21-4) ~«' ¡l -01-4) ,-'6(22) -" - -" -4(0;- l! "0(3), lr ·3(13 -. õõã> ~~ -~ ~- N~ ¡;¡ . Homestead Rd Lawrence E 1IIIIIIII ..- §: ~ ':! -·31'3) N -.I ¡ -~ -- 3(-4¡~ t 4(8- " '" ~ N Ave Tantau Ave -- .. ~ ~ ~ '1 ,"(7) N ,-9(11) j ¡ _.~ ~_NB!'Iami>l Ir Ir ~- ¡;;¡¡; - ~- "'~ -", ~~ N NET NEW PROJECT TRIP ASSIGNMENT FIGURE 9a LEGEND .J - Turn Lane XX (YY) . AM (PM) Peak Hour Traffic Volumes IZZJ - Project Location 0 Study Intersection -4 H=te~..Rd. -4 ~ , .' ~I- ~I 31 0' j , . o 5teve~C,~B!vd. ~ ~ " o "". eo" Place \Graphics \ CAD\Nalr 05\figOg_netprojectpo.dwg PEE RS ONSULTANTS SCALE FEHR & TRANSPORTATION Nev 11, 2005 ~JC N:\Projects\SJ05-795 COlobozo' NOT Project Location [22] Turn Lane AM (PM) Peak Hour Traffic Volumes LEGEND -..! xx(fY) L - , !2 L- ~Ñ ;¡"'- ... J¡ L28(14) ,7("7) ¡¡;- -m "'- ",-", ",,,/ ¡l ~ ';- ¡ 1(1 18 (18) 2 (4: í §: --- ·12(37)- ì ¡;;- o 'I' ~tiiõO".,., 13(-3)~ 20 (·58) , 28 (-56) 13(0) lr ~â mN - , ~1lII<»Pkw, ·73(27)- 47(71), Ir 'ôM' = ~~ ~dooF'l<wy Ir fR~ :¡'" I-280SSRompo .23(37), (10) 8 (89) 1 (88) L , 65'$' ~S2 "'~ ~- Jl -'()økø>;j' 9 L24 (35) -18(42) ,9(20) N......$' ::c~"'- "'~'" J¡l --.J (821 1 (5 Ir 'ôM' ....,.. ~- '- --- ·15 (7)--.J 4(48)- - 23 (30) s..-CIMIoIii«I (55) 23 (30) StMño-CIMIo_ (55) -23(30) SiNon.CIMIo_ (55)- -$' N. =-;- ..N Jl _()øk';; ·2 (9) L §: ~ L- .....~ 0(27) ì R ~ :¡ --- 8(14) (94) -·50 --- 8 (14) ·50 (94) - , SIo..MCIMIoBMI n~1 8 31 L'77(7) -28(87) II ê2 ~'!' 1 (5¡--.J 9(89 - 3(5, NET NEW PROJECT TRIP ASSIGNMENT FIGURE 9b 05\ligOg_netprojectpa.dwg PEE RS Nov 11. 2005 t.4JC N:\PrOjects\SJ05-795 Co~bozas Place\Grophics\CAD\Nov FEHR & ~- Œ'(~d8 -- ~~- s.s.!2. -~o L111(116) ..L 12 (16) ¡z"'- j8N'" .,- ~M -jj ~ ~413 (610) + --592 (1,009) ,200 (375) ,124(110) H..._R<l. illlr _M 30 (33I.J -t, 103 to! .-J 555 604 =:: 744 è"OO4 - .....o~ 228 359 , U~ 7(95 T ~~~ -- 0"- N~ <O~~ N_M 0. . Homestead Rd Lavvrcnce Exp 4 Prunendge Ave Wolfe Rd ~ ~ -~- ~.cig ~ci~ ~N£1 ::ï-"'- ~f;{~ .k'35 (146) ;:-~~ L47f'2) N__ N__ JIHLl -556(746) -¡¡¡l -26 60) t¡=399 (379) t¡=119 (408) -~(512) dJ ill! r ~",.....o gt-43 p2 ~ illlr 388 19B5! = 352'!T 156 305 , M~'" 85 (128 $gN M_M o N _"'M a..:::. ~~ ~'=<D C\I~C\I !D~~ N "' ri erldge Ave ¡Tanlau Ave 6 Wolfe Rd I 280 Nß Ramps ~¡ -.(ÕïÕ' ~ . .,"'- !!1::.. .,"'- ~., ~i~ -L 113 (39) ~o ¡¿ 695 (503) ~'" -j l- -'81 <'33) J j r 41S (569) ,67 (102) 101 (55! .J ,I- _M ~Þ>N8Aam~ 74 (233 -- Hr 14(31 T ~oo "'~'" $5 --- 0- ~M "'M~ ~_r:!. ~~ :OM ~::ï " PEAK HOUR TRAFFIC VOLUMES AND LANE CONFIGURATIONS· PROJECT CONDITIONS FIGURE 10a -="_R.d 6011, PEERS CONSULTANTS CakrbOlQS Plgç-=\Grgp~içs\CAD\Nov 05\fig10_phtv_project.d",g LEGEND .J . Turn Lane XX(YY) . AM (PM) Peak Hour Traffic Volumes [ZZ] - Project location 0 Study Intersection ~ - Traffic Signal - ~ 1 11, ~ ~I il ~ ¡ 0, :::: I NOT TO SCALE FEHR & TRANSPORTATION Nov 11, 2005 MJC N:\Projects\SJ05-795 t , < " o LEGEND .J Turn Lane [ZZ] Project Location XX(YY) AM (PM) Peak Hour Traffic Volumes ~ Traffic Signal ~ Stop Sign - 9 Valleo Pkwy ¡Fmch . I ... ã; m-- ~l '" æ-:!\ Ñ''''~ , ~~" ~~ t~í£ ....~ ::!.::.. ..- --- ~~ f)j1;¡ -~iß L 140 (438) ...L 82 (18) -~- ~ ~ ¡¡ -L 227 (276) ~ä:_ ~,,~ ~..- +1(1 ..~ ~~~ JI¡¡¡ J¡¡¡11- -3(15) + 131 (253) -W- 1(8) -fiìiü.- =587 (1,134) r¡=53 (161) ~ í40(25) 0(1) r¡= 292 (397) ~~serwroa- Hr ,-- ì III-- -- ~ v.....PI<wy ljr -2:;;9) ~ iHHr 633 (434) dJ ~ 30 (438¡ --.J 56(~--.J + 56 (1281.J 1(13- 77 ~255 - 67M~ T 444 à,,08'! = 283 (618) ~ 14(198 --. --tlj 7811 --. ~-~ :g¡:j"'- ~~I ~t::. g~,,- --" 9 (532 =ï """ -~- ="'" ~- œ::":g - - ...~ g3:'r... .... -~- r " - o~ ...~S! " :! ~" ê' IIIB!II .. 13 Stevens Creek Blvd Portal Ave 14 Stevens Creek Blvd ¡PerImeter R 15 Stevens Creck Blvd ¡Wolf, Ñ' Ô '" ~i ô¡g -~- }!ëñ~ 0_" __0 !!1e.a t:...::.. to-~ L7O(85) L 64 (89) -,,- ...L 28 (55) ~- --- -1-,5(55) ~~~ -L 225 (293) g~ g¡:=:g 0-" ~-~ :=1,101(1,201 ..~... :=1,180 (1,305) ,,~~ :::: 1,571 (1,376) ..,,- =763(790) --816 (1,175) J¡l ,"4 (290) -iL- ,37 (108) .-JI-- , 32 (94) Jill r¡= 128 (249) Jl í289 (167) --- llr --- ìl- --- + - ;'"f.08j :dJ ìj l-- _..er..BOo:I lr 122 (Hi d 48 (103¡d 37 (213) d! 47 (162¡ d 647 &' ,532 ::: ~a~ 806 Q; 760 = g¡g¡¡z 1,212 (1 ,744~ - ~..~ 459 854 :::::=: i§,~ 53".);,,149 = ~i 3(71 --. (70 --. 9(21 T =.to 87 (62 T -~- 7(64 --. ~- ¡z-~ co....~ ;-:;:g 12ij¡ O~~ -" .....~~ ~ä3"" -- 7 Stevens Creek Blvd Tantau Av, 8 Stevens Creek Blvd II 280 SB 19 Stevens Creek/58 Lawrence Ex, 20 Stevens Creek¡NB Lawrence '1 Bollinger Rd /Tanlau Ave Ñ'_ -~ ~i ~~ ;!i!i m:!.!!1 -" L'84(I58) ;;~a ~~ ~- = 1,070 (1,484) ...~ L 342 (323) ..~ =873 (1,151) ,,~~ ~- O~ -... ~~l- iF 263 (600) ..- = 2,034 (1 ,859) ,,- ...L 96 (79) .-1[1. ,77 (122) Jl = 1,233 (1,086) .-I- -912(694) --- --- lr s......CfaoII_ ( ~-- ~ I- .....~ 108 (76¡ d + 635W29¡= ,222 (1,715) = 550 (629) dJ ì 73 (72)--.J 689 ~269 = 255 15 --. õÑ 820 (852) =:: (50 --. fS¡; ~~ 637 (1,862)::::: C\u'Oi -~ - ä3&31D iß~'" ~;: ~~ ......~ - ~~O ...~ PEAK HOUR TRAFFIC VOLUMES FEHR & PEE RS AND LANE CONFIGURATIONS - TRANSPORTATION CONSULTANTS PROJECT CONDITIONS Nav 11, 2005 MJC FIGURE 10b N'\Projects\SJ05-795 Cclcbezas Ploce\Grcphics\CAD\Nov 05\fig10_phtv_project.dwg Ordfl FlfJal Caldbazas Place TlA December 2005 ~ TABLE 7 BACKGROUND AND PROJECT INTERSECTION LEVELS OF SERVICE Background Project Peak ð.lnCrlt /':J.inCrit Intersection Hour1 Delay' LOS' Delay' LOS' Delay' VlC' 1. Wolfe Road I Homestead Road AM 26,9 C 26,9 C -01 +0.003 PM 46,7 D 47,2 D +1.1 +0,020 2. Homestead Road I Tantau Avenue AM 20,5 C+ 20,2 C+ -0,6 -0,012 PM 21.3 C+ 21,5 C+ +0,3 +0.011 3. Homestead Road I Lawrence AM 47,3 D 47,5 D +0,1 +0,000 Expressway6 PM 92,5 F 93,7 F +1.4 +0,003 4. Wolfe Road I Pruneridge Avenue AM 20.2 C+ 20,2 C+ -0,1 +0,007 PM 31.7 C 31,7 C +0,1 +0,012 5. Pruneridge Avenue I Tantau Avenue AM 21.3 C+ 21,3 C+ +0.1 +0,009 PM 22.7 C+ 23,0 C+ +0,2 +0,004 6, Wolfe Road 11-280 Northbound AM 12,8 B 12,8 B +0,1 +0,007 Ramps' PM 13,7 B 14,3 B +1,1 +0,024 7. Wolfe Road 11-280 Southbound AM 11,2 B+ 11,2 B+ +0.1 +0,014 Ramps6 PM 11,0 B+ 11.5 B+ +0,7 +0,030 8, Wolfe Road I Vallco Parkway AM 19,1 B- 19,8 B- +0,3 +0.006 PM 60,0 E+ 65,5 E +2.4 +0.011 9. Vallco Parkway I Finch Avenue' AM 11,8 B 8,3 A NIA NIA PM 13.5 B 11,2 B NIA N/A 10.Vallco Parkway I Tantau Avenue AM 119 B+ 12,1 B ·7,6 +0.002 PM 17.2 B 16,9 B -0.6 ·0,026 11, Stevens Creek Boulevard and De AM 32,9 C- 33,0 C- +0,3 +0.003 Anza Boulevard6 PM 38,8 D+ 39.1 D +0.3 +0.003 12, Stevens Creek Boulevard I Blaney AM 18,0 B- 18,0 B -0,1 +0.005 Avenue PM 29,1 C 28,9 C -0,1 +0,011 13, Stevens Creek Boulevard I Portal AM 10,9 B+ 10.8 B+ +0.0 +0.005 Avenue PM 14,6 B 14.4 B -0.2 +0,011 14. Stevens Creek Boulevard I Perimeter AM 8.3 A 8,3 A +0.0 +0,004 Road PM 16,1 B 15,9 B -0.2 +0.011 15. Stevens Creek Boulevard I Wolfe AM 37.0 D+ 37,0 D+ +0,0 +0,006 Road-Miller Avenue' PM 42.9 D+ 43,9 D +1,0 +0,016 16, Stevens Creek Boulevard I Finch AM 30.4 C 30.4 C +0.4 +0,026 Avenue PM 17,0 B 21,3 C+ +6,5 +0,252 17, Stevens Creek Boulevard !Tantau AM 19.4 B- 19,5 B- -0,0 +0,013 Avenue PM 20,6 C+ 19,6 B- -0,9 +0,002 fþ FEllI< & PHRS UU"<U""~~ 'tH"""" 33 Draft Fllldl Cd/alJazas Pface TlA Dcccm/)G/ 2005 - TABLE 7 (CONTINUED) BACKGROUND AND PROJECT INTERSECTION LEVELS OF SERVICE Background Project Peak ð.in Crit ð.in Crit Intersection Hour1 Delay' LOS' Delay' LOS' Delay' VtC' 18, Stevens Creek Boulevard /1-280 AM 34,1 C- 33,5 C- +1,1 +0,020 Ramps PM 46,1 D 46,5 D +2,1 +0.011 19. Stevens Creek Boulevard I Lawrence AM 22,0 C+ 22,1 C+ +0,0 '{).009 Expressway (W)' PM 26,7 C 26.4 C +0,1 +0,017 20. Stevens Creek Boulevard I Lawrence AM 377 D+ 37.4 D+ -0,2 -0.010 Expressway (E)' PM 39,2 D 40,0 D +0,9 +0.019 21. Bollinger Road / Tantau Avenue AM 10,6 A 10,7 B+ +0,1 +0,001 PM 10,0 A 10,1 B+ +0.1 +0,006 Notes: 1 AM = morning peak·hour, PM = evening peak-hour. 2 Whole intersection weighted average control delay expressed in seconds per vehicle for signalized and all-way stop intersections using methodology described in the 2000 Highway Capacity Manual, with adjusted saturation flow rates to reflect Santa Clara County Conditions. For two-way stop controlled unsignalized intersections, total control delay for the worst movement, expressed in seconds per vehicle, is presented. LOS calculations conducted using the TRAFFIX level of service analysis software package. 3 LOS = Level of service 4 Change in critical movement delay between Background and Project Conditions. A decrease in the critical delay indicates project trips were added to movements with low delays thus causing a decrease in the overall critical delay. 5 Change in the critical volume-to-capacity ratio (VlC) between Background and Project Conditions. 6 Designated CMP intersection. 7 Side·street stop control under Background Conditions and all-way stop controlled intersection under Project Conditions. Unsignatized Intersections For this analysis, traffic impacts at unsignalized intersections are defined to occur when the addition of project traffic causes: 1. Intersection operations to deteriorate from an acceptable level under Background Conditions (LOS D or better) to an unacceptable level (LOS E or worse) and the MUTCD Peak Hour Warrant is met under Project Conditions; or 2, The exacerbation of operations at an unsignalized intersection already operating at an unacceptable level (LOS E or worse) under Background Conditions and the MUTCD Peak Hour Warrant is met under Project Conditions, Based on the project impact criteria listed above, the proposed project will not cause a significant impact to the unsignalized intersection of Vallco Parkway and Finch Avenue, This intersection is projected to operate at LOS A during both peak hours, 34 fþ FEHR & PEERS 'U.'~UfA'IOO ~OO'~E'UU Dlcdt Final CdloÖazds Place TIA Oecember 2005 INTERSECTION MITIGATION MEASURES The results of the analysis indicate that the proposed project will not have a significant impact on the key intersections during both peak hours, Therefore, no measures are required to mitigate any project-level impacts, FREEWAY SEGMENT ANALYSIS According to Santa Clara County CMP guidelines, freeway segments to which a proposed development is projected to add trips equal to or greater than one percent of the freeway segment's capacity must be evaluated in detail. Segments of 1-280 were reviewed to determine if the minimum threshold of project-generated traffic would be added to these freeway segments, Capacities of 2,300 vehicles per hour per lane (vphpl) for freeway segments with six or more lanes were used in the freeway analysis, To be conservative, no project trips were assigned to HOV lanes, Table 8 presents the capacities of the freeway segments, the estimated number of trips added to the segment by the project, and whether or not the freeway segments must be evaluated in greater detail, The amount of traffic added to each segment is estimated to be less than one percent of the segment's capacity, Therefore, the project's impact on the freeway segments is considered less-than-significant and no additional analysis is required, TABLES FREEWAY SEGMENT ANALYSIS Peak 1% of Project Requires Segment Hour Capacity' Capacity Trips2 Analysis2 Eastbound 1-280, Saratoga Avenue to AM 6,900 69 33 No Lawrence Expressway PM 6,900 69 3 No Nestbound 1-280, Saratoga Avenue to AM 6,900 69 -41 No Lawrence Expressway PM 6,900 69 58 No Eastbound 1-280, Lawrence Expressway to AM 6,900 69 8 No Wolfe Road PM 6,900 69 -6 No Westbound 1,.280, Lawrence Expressway to AM 6,900 69 -9 No Wolfe Road PM 6,900 69 11 No Eastbound 1-280. Wolfe Road to De Anza AM 6,900 69 -24 No Boulevard PM 6,900 69 37 No Westbound 1-280, Wolfe Road to De Anza AM 6,900 69 20 No Boulevard PM 6,900 69 5 No Notes: . 1 A capacity of 2,300 vehicles per hour per lane was used for three-lane mixed-flow freeway segments. 2 Project trips reflects net-added project trips. 35 tp FElli, & I'IF"' ,...."...'~"6. <O.WIlU'~ D!aft Filial Cafabazcìs PldCC TlA OecomfJor 2005 SIMTRAFFIC ANALYSIS A SimTraffic simulation model was developed for Stevens Creek Boulevard and Wolfe Road to determine the progression and queuing effects of the addition of proposed project traffic, The model was also used to evaluate the removal of one westbound travel lane adjacent to the curb to provide parallel on-street parking on Stevens Creek Boulevard between Tantau Avenue and Finch Avenue, Figure 11 presents an image of the SimTraffic simulation of Wolfe Road during the PM peak hour under Project Conditions, The results of the simulation show that, in general, there is good progression along Wolfe Road and Stevens Creek Boulevard with the exception of the eastbound left-turns on Stevens Creek Boulevard at Wolfe Road, The heavy left-turn volume queues out of the pocket and extends to Perimeter Road. This queue can be reduced with extra green time added to this movement. Figure 11 - Project Operations on Wolfe Road (PM Peak Hour) Figure 12 presents an image of the SimTraffic simulation of Stevens Creek Boulevard in front of the project site during the PM peak hour under Project Conditions, The results of the simulation show that no major queuing or congestion is anticipated as a result of the elimination of one westbound through lane on Stevens Creek Boulevard, However, the reduction of a lane on this facility is not consistent with the cross-section of Stevens Creek Boulevard between SR 85 and 1-280 and the street character changes for only a short segment. Thus, for a single project, we do not recommend on-street parking on Stevens Creek Boulevard in this area, Furthermore, although not modeled in this simulation, the interaction of vehicles using the parallel on-street spaces would not be convenient and likely unsafe for motorists and bicyclists because Stevens Creek Boulevard is a higher speed facility and an isolated condition. Ultimately the elimination of a through lane and installation of parallel on-street parking is not recommended unless it is part of a larger project to reduce through capacity or provide parking on a longer segment of Stevens Creek Boulevard, Figure 12 - Project Operations on Stevens Creek Boulevard (PM Peak Hour) fþ FEIIR & PH'" 'u.'u",,'u 'h'-;,'u" 36 DI,lff FlI1dl CalabélZdS Place TlA Decom/)er 2005 - . .... -. . . !!II SITE ACCESS AND ON-SITE CIRCULATION The site plan showing the location of the project driveways and the internal circulation system is presented on Figure 2, The site has good vehicular access with driveways on Vallco Parkway, Stevens Creek Boulevard and Finch Avenue. One full-access driveway will be provided on Vallco Parkway to the north residential buildings, A right-turn in and out driveway will provide access to the west residential units located north and west of the public park. A driveway to the east residential units will be provided on a new internal road between Stevens Creek Boulevard and Vallco Parkway. Access to the retail uses will be provided by two right-turn only driveways on Stevens Creek Boulevard and one driveway on Finch Avenue, These driveways provide adequate capacity for vehicles to enter and exit the project site, Access to the western residential units is provided by a right-turn only driveway on Vallco Parkway, Westbound drivers on Vallco Parkway will be required to make a U-turn at Perimeter Road to enter these units, The width of the eastbound travel lanes plus any median should be at least 30 feet to allow U-turns. Drivers leaving these units to head west will not be able to make a eastbound U-turn at the Vallco Parkway/Finch Avenue intersection because inadequate width would be provided. We recommend that a "No U-turn" sign be installed at this intersection. Exiting vehicles destined for Wolfe Road will have to use Finch Avenue and Stevens Creek Boulevard or Tantau Avenue and Pruneridge Avenue, Sidewalks are provided on Vallco Parkway, Finch Avenue. Stevens Creek Boulevard, and most segments of Tantau Avenue, There are no sidewalks on the west side of Tantau Avenue north of Vallco Parkway including on the bridge over 1-280, To encourage walk trips to the project site, we recommend that a sidewalk be provided along the west side of Tantau Avenue between Vallco Parkway and Pruneridge Avenue, This will require construction of a raised sidewalk on the existing bridge, where the existing cross-section includes 60 feet of pavement with the following configuration: two southbound travel lanes, a two-way center left-turn lane, one northbound lane and bike lanes in both directions, The bridge section could be modified to accommodate the following: · 8-foot new sidewalk (on west side of bridge) · 6-foot bike lane · 12-foot vehicle lane · 16-foot painted median · 12-foot vehicle lane · 6-foot bike lane Left-turn lanes at the ends of the bridge could be provided within the painted median, Since the lane configurations at the Pruneridge Avenue and Tantau Avenue, and Vallco Parkway and Tantau Avenue intersections are expected to operate acceptably, the removal of the second southbound vehicle lane will not cause any capacity problems. In addition, it is expected that there will be pedestrian traffic between the northern residential areas and the retail uses, The project proposes to install all-way stop control at the Vallco Parkway intersection just west of Tantau Avenue, With the all-way stop control, this intersection is projected to operate at LOS B or better during both peak hours and will provide a designated pedestrian crossing location, This intersection would also operate at LOS B or better with two-way stop control. If two-way stop control is provided, a textured pedestrian crosswalk on Vallco Parkway should be provided to highlight the crosswalk to drivers, ~ FEIIR & PEERS "......I~I'n. \."",t...,, 37 Drafl Frnal Calabazas Place TIA December 2005 , . . . -- Pedestrian traffic is expected from the neighborhoods south of Stevens Creek Boulevard. To encourage this pedestrian traffic, we recommend pedestrian countdown heads to be installed at the Stevens Creek Boulevard intersections with Finch and Tantau Avenues. The site has adequate bicycle access via the bike lanes on Wolfe Road, Vallco Parkway, and Tantau Avenue, Figure 13 illustrates recommended site plan changes on Vallco Parkway to safely guide bicyclists, The eastbound bicycle lane on Vallco Parkway at Finch Avenue should transition from the curb to its own lane between the through and trap right turn lane. The bicycle lanes should be continuous across the driveways on the south side of Vallèo Parkway between Finch Avenue and the residential project driveways, Also, a five foot clearance should be provided between the bicycle lane and angled stalls. Finally, the site plan indicates a bike lane between the left- turn and eastbound through lanes on Vallco Parkway at the Tantau intersection. This lane should include a bicycle detector and be limited to bicycles turning left. Bicyclists continuing eastbound or turning right will use the curb bicycle lane. City of Cupertino staff and industry design standards will determine the final bike lane striping along Vallco Parkway. PARKING As shown in Table 9, the City of Cupertino's Municipal Code requires 1,271 parking spaces including 533 retail and restaurant and 738 residential parking spaces. The City's Municipal Code requires 2 (1 covered and 1 uncovered) spaces for every condominium unit. The parking requirement for the retail use depends on the final size and land use of buildings in the shopping center, The project applicant has indicated that there will be two restaurants, one with a bar and one without and 19,000 square feet of specialty retail. The remaining 87,000 square feet would be general retail. The proposed project will provide 1,261 on-site parking spaces including 405 retail (all surface), 856 residential (752 underground and 104 surface) parking spaces. The project will provide sufficient parking for the residential uses, However, the retail and restaurant parking supply (405 spaces) does not meet city parking requirements (533 spaces). The project will provide 68 angled parking spaces on both sides of Finch Avenue. One travel lane on Vallco Parkway will be replaced with 47 angled and parallel parking spaces along the project's frontage. These on-street parking modifications would result in 115 on-street parking spaces. (The parking analysis did not consider anyon-street parking on Stevens Creek Boulevard,) Assuming all of the 115 on-street parking spaces on Finch Avenue and Vallco Parkway were for the retail uses, the project would still provide 13 fewer spaces than required, In addition, it is likely that the on-street spaces will be used by guests, residents, and public park users, Therefore, retail parking demand could spillover to adjacent parcels such as the HP property on Vallco Parkway and Vallco Shopping Center. Mitigation measures to reduce the parking impact and potentially balance the parking deficiency include implementing one or more of the following items: · Provide valet parking either on-site or at an off-site location, · Provide off-site employee parking with a shuttle, · Enter into a shared-use agreement with HP to use their parking lot during the evenings and weekends, · Add on-street parking along the north side of Vallco Parkway, and · Reduce the size of the retail or restaurant uses, Alternatively, 70 to 80 percent of the retail uses and one restaurant could open with a parking monitoring program that would survey the actual parking demand, If there is adequate parking available, then the rest of the center could be developed, fp 38 fEIIR & rElltS ....HO.'..'O.,"",""UI\ <:J<:J '" ¡¡¡ 2::- '>:>1 õ- s· "''' ~ - I\)C) a" a - "'¡;. " t; "' 3:J " " " -< " ~ - (') -I ô-g;! ( ) (J' @ ·~o 0 ...,..... 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Wolfe Rd 1-280 Nß Ramps '" .....~íÕ ~~ õ~... !!!.;::. --- ~o --- -L 113 (39) "m * 699(519) ~_m ~m ~-- -181(136) J -{l.. í 72 (95) r 426 (562) 104(5~J It- -~ I-28ONBRornI'O 77 (235 - Hr 20 (34 T g~~ ~ --- -- N~r:: ~~ """ ~¡:¡ "'- PEAK HOUR TRAFFIC VOLUMES AND LANE CONFIGURATIONS - CUMULATIVE NO PROJECT CONDITIONS FIGURE 148 FE H R & PEERS TRANSPORTATION CONSULTANTS Nov11,2005 t.tJC N:\Projeçts\SJ05-795 Calabazos Ploce\Graphiçs\CAO\Nov 05\fig14_phtv_cumnoproject.dwg LEGEND .J - Turn Lane XX(YY) - AM (PM) Peak Hour Traffic Volumes IZZJ - Project Location 0 Study Intersection ~ . Traffic Signal -4 H"""'~t"ad R.d -4 ~ i ~I "I . ðoll~",,!Sd. i , i1 NOTT, ~"""5Cr",,~6Ivd. SCALE ::::. I ~ ~ , o Project Location Traffic Signal Stop Sign [ZZ ~ ~ Turn Lane AM (PM) Peak Hour Traffic Volumes LEGEND -.J XX(YY) '" i~! "'-'" ¡~~ -L 226 (276) .....¡...It) :::::::589 (116 --II II [1. ,,292 (396) -2:;9) =:!¡ 1\11 r 472 (1,098\ - ."1> 9B (532 --. iiil!J.iI. 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"'''' !::~ 30 (34j d. 556 {1,214 :::::: 257 (64 , ,383) ~-.ê" -"'- ¡¡=-;;; -L 16 (61) I"' -N == 1,579 ( -' , 32 (94) '-0.;:;222) ::!J + 1,237 (1,736) --- ¡g-.;:œ 9(21)T ::; L 112 (425) --3(15) "45 (17B: ìl\l- U~ ;;¿;: ~"N ~. ~ \\r -'" "'- "'" -" -'" "''' m ¡¡;-~. !:I" ;;ìñ ",,, ,,- Jllil .:!soss"..... 635 (442) dJ 30B (589) =¡ì ~ ¡¡;- -§:~ L 64 (89) ~It)r--. ==1,199 (1,331 -1 L- 'F37 (109) --- I- 48 (103! d. ì 838 ~773:::::: œN;7; (80 , ~:IO "'-'" '" 71 (89) 1,119 (1,219) 117 (306) L , Ñ 6'~F:' ~-m -"'- "'0'" m_", JIl SIeoenaCnooO.¡:;;j' llr $~2! --'" ",- 0"'''' -"'" --.J , 122 (172' 677 (1,53B' 33 (71 ...L 98 (71) -- 912 (694) m_ 0'" =...!2. 0" "'- -L 73 (72)--.J 820 (852) == Ilallir>gwA, L 342 (323) == 1,244 (1,069) ~r~ ~:ti:g "'~- _c__ 556 (64B) 641 (1.655) :;::-r::õ :8:£è'; ~ $ iš -L 202 (262) ""(I').... :::::::756 (769) Jill ,,"9 (229) -;:f82~:dJ 11l~ 9O(s3~ T ~~~ m"'o "'~- -'" ,779) (1 ~i ~£:!. -'" "'- j-l ¿=2'OB6 --- ,232 (1,727) = IF 1,134 (1,418) 305 (657) lr 6'Ñ .:!.~ -'" "':: = -"'''' "'''''' "'-- ;;~8 "'-'" ~~L SI-.~IIM:I~ 645(941\ == 227 (699 , L 261 (155) := 859 (1,087) ,77(122) ~F:' -'" -'" ~¡g .-Ilk- + ã.)6õ £2.~ "'-~ "''''''' --.J , --- 107 (711 665 (1,203 32(46 PEAK HOUR TRAFFIC VOLUMES AND LANE CONFIGURATIONS - CUMULATIVE NO PROJECT CONDITIONS FIGURE 14b .dwg OS\fig14_phtv_cumnoproje' FEHR & PEERS Ploce \Grophics\CAO\Nov "'C N:\Projects\SJOS-79S ColobolC ~§~ ß'~ ~- iã¡¡;~ -1-11' (116) :g~~ -L12(16) -w ~ f.=4'3 ¡6'0) + -623(',054) ,231 420) ,'25(114) ~_Fld. _Fiii- -J, '03!"'!--.J i1l!r 30 (3o¡-J 762 ~1 ,058 _ 555 604 =:: ~~N 7(95 T ~ge 226 360 -. ;IN'" --""':.~ -~ O~- M~"" ~~~ N_N ;: N~M . Homestead Rd I Lawrence Exp Prunendge Ave Wolfe Rd '" ~- '" -~- Si!ii!! __ci~ :!.N£l. (;co:::" ~ëÇ.~ .b'35 (146) ;-~æ L57(116) N__ N__ JHllk. -56' (752) -HI l -26 (60) ?409 (386) "'55 (425) ,-~ -~ 302 (565) d.¡ iHlr 43F.f i1l!r 390 ¡9681 = 35 2' 156 305 -. ~~* 65 ('28 T Õ)~ al:\~ ;-~ ....:::..., ON!:! (Ø~~ N¡¡ ri erldge Ave Tantau Ave Wolfe Rd ¡ 280 NB Ramps ='" ~~ ON_ "'"" :::.~ -L 113 (39) "'N ~'" ~ 699 (5'9) ¡¡::¡~ ~'" -il- -181 (136) J r 418 (574) ,67 ('03) 104(5~-1 il- ""-IIIgt1ld. ~~- 77 (235 - tlr 20 (34 T g.~ ~& --- -- N~~ "'~ -- ~~ ~. PEAK HOUR TRAFFIC VOLUMES AND LANE CONFIGURATIONS - CUMULATIVE PLUS PROJECT CONDITIONS FIGURE 15a LEGEND -1 . Turn Lane XX(YY) - AM (PM) Peak Hour Traffic Volumes IZZJ - Project location 0 Study Intersection ~ - Traffic Signal -4 Home~te;ld R.d. -4 ~I !I ~ ~&> """ FEHR & PEERS TRANSPORTATION CONSULTANTS Nov 11, 2005 MJC N:\Proje<::ts\SJ05-795 ColaboZO$ Ploce\Graphies\CAD\Nov 05\f1g15_phtv_cumproje<:t.d....g NOT TO SCALE Cr",,~ Blvd. Steven' ::: I ~ i . o LEGEND J Turn Lane W Project location XX(YY) AM (PM) Peak Hour Traffic Volumes ~ Traffic Signal ~ Stop Sign ... 9 Valleo Pkwy ¡Finch A ... ~ Ñ~~ iß~ '" _0 , i~~ ~ci ~~~ S-ëõŒ' ~~ ~-- ~-- N_" -~i8 L 140 (438) ~:::..!£. -L62 (18) -,,~ ;;;;;;; -L 228 (277) ~;g ;¡ - ~N~ ",,- +1(1 " . "'~- N""( ) _ ~- JIHl1. -3(15) + 131 (255) -j¡L-- 1 (6] -mr~. _605 (1,176) Æ 1f'53 (161) ~ í 40 (26) 0(1] If' 294 (400) >-2aosa~ Hr .-- ìl }- -- + ~ -- llr --.01-._ --.J iHllr 635 (442) odJ 30 (4381 ---.J 56(~---.J 58 (129¡ J 244 (279) ~ "" 1(13- 79 f256 - 67åjg T 460.,à','35¡ = 285 (627) =jI ~E 14(198 , ~W@ 7811 , S'-;:"6) ~ ~U ~-ro (532 - NN_ ~,,- ::,,=,"'f , -- ;-g¡ - - ",::'<0 ~ro f ro _ !:;~ N.O m~ ro ~ro '-~ ::! '. - ill 13 Stevens Creck Blvd Portal Ave 14 Stevens Creck Blvd ¡ Perimeter R 5 Stevens Creek Blvd /Wol! 16 Stevens Creek Blvd Finch Av· Ñ 'i' Ô ;~~ õ'~ -,,- i~~ o-~ --- !O.~ ~-m L71(89) L64 (89) _N_ -L27 (54) -,,- -m --- -1-,6(6,) _NO -L 226 (297) 0" "'0" O-N "-N N~~ "ro "'-" =1.142 (1.249) ~,,~ ::=1.222 (1.361) ro"N ::::: 1,602 (1,413) ~ro~ =775(811) Jl -827(1,191) JIl ,"7 (306) --{I- ,37 (109) ..J¡'" ,32(94) Jjjl 1f'128 (249) ,289 (167) ~-- llr ~-- Î~ -..c__ + -..c.-_ ..J ìHI-- _c__ lr 122('72¡d 48(103¡d 39 (222) ::!J 424 fa~ ~ 47 (124¡d 666 £3593 = :¡¡::¡~ 827 ~828 == g¡~~ 1,226 (1,791~- <õ'õtãi 469 875 == S'g"'$' 559 ~ ,173 == ¡::-" (71, -_N (80, ~- 9(21 T N....t.- 90 (63 T ~It)t:. 27(64, !2.!8. ,,- --"' CD....~ ;;;;;;~ ~~ o"ro ,,_ro -,,~ " N"_ ~- -"' 17 Stevens Creek Blvd ITanlau Ave 18 Stevens Creek Blvd I 28058 19 Stevens Creek 58 Lawrence Ex o Stevens Creek, NB La\NrenCe 21 Bollinger Rd ¡Tanlau Ave Ñ_ = 'Ñ'/D 6)~:8 ~¡::- ;!i!) ,,- m.~ -ro L 185 (163) -,,~ ::::.~ ,,- 1e~g :::::: 1,084 (1,512) -"' !;:: 342 (323) ~" ,,- O~ ~"' :=885 (1,174) ~~L IF 305 (657) ,,- = 2,036 (1,873) ~:: -L 96 (60) .J[1. ,77 (122) Jl = 1,235 (1,097) -L - 912 (694) -"";";(76¡d SI.....C._ao:.... lr s.o-...C,"'SMI ( SI....er..._ ~~ _"Ii",Ad --.J + 653 ¡9~ =: ,240 (1,741) = 556 (648) odJ 73 (72) 684 &1,292 :::::: 258 71 , ÔN 820 (852) == 5(51, f::oo ~.:!- - 649 (1,869) =: :g~~ ~"ro ~"' :g"~ w;: ~ ;:" ",0", "'"'0 ~~~ PEAK HOUR TRAFFIC VOLUMES FEHR & PEE RS AND LANE CONFIGURATIONS· TRANSPORTATION CONSUlTANTS CUMULATIVE PLUS PROJECT CONDITIONS Nov11,2005 IAJC FIGURE 15b N,\Projeds\SJ05-795 Colobozos Plo<;:,,\Crophics\CAD\Nov 05\fig15_phtv_Climproj8çt.dwg Draft Final Calabazas Place TIA December 2005 ~ TABLE 10 BACKGROUND AND CUMULATIVE PLUS PROJECT INTERSECTION LEVELS OF SERVICE Background Cumulative plus Prolect Peak óinCrit óinCrit Intersection Hour' Delay' LOS' Delay' LOS' Delay' VIC' 1. Wolfe Road I Homestead Road AM 26,9 C 27.2 C +0,6 +0.021 PM 46,7 D 48.1 D +2.8 +0,043 2, Homestead Road I Tantau Avenue AM 20,5 C+ 20.2 C+ -0.5 -0,006 PM 21.3 C+ 22,1 C+ +1,1 +0.032 3. Homestead Road 1 Lawrence AM 47,3 D 48,0 D 0,7 +0.022 Expresswal PM 92,5 F 98,6 F 3,1 +0.025 4, Wolfe Road I Pruneridge Avenue AM 20,2 C+ 21.2 C+ +1,4 +0,031 PM 31.7 C 32,5 C- +0,8 +0,032 5. Pruneridge Avenue I Tantau Avenue AM 21.3 C+ 21.3 C+ +0.2 +0,013 PM 22,7 C+ 21,8 C+ -1.3 -0.007 6. Wolfe Road 11-280 Northbound AM 12,8 B . 13,0 B +0,3 +0.021 Ramps6 PM 13,7 B 15.7 B +3,2 +0,056 7, Wolfe Road 11-280 Southbound AM 11.2 B+ 11.2 B+ +0,2 +0.029 Ramps' PM 11.0 B+ 11.7 B+ +1,2 +0,062 8. Wolfe Road I Vallco Parkway AM 19,1 B· 19,5 B- +0.2 +0.012 PM 60,0 E+ 67,6 E +5,0 +0,023 9. Vallea Parkway I Finch Avenue? AM 11.8 B 8,3 A NIA NIA PM 13,5 B 11.3 B NIA NIA 10, Vallco Parkway 1 Tantau Avenue AM 11.9 B+ 12,1 B -7,6 +0,003 PM 17.2 B 16.9 B -0,6 -0,025 11, Stevens Creek Boulevard 1 De Anza AM 32,9 C- 33,5 C- +0,9 +0,011 Boulevard6 PM 38,8 D+ 39,7 D +1.0 +0.012 12, Stevens Creek Boulevard I Blaney AM 18,0 B- 18,0 B ·0,1 +0,014 Avenue PM 29,1 C 29,5 C +1,2 +0,045 13. Stevens Creek Boulevard 1 Portal AM 10,9 B+ 10.8 B+ +0,0 +0.013 Avenue PM 14,6 B 14,5 B +0,2 +0,031 14. Stevens Creek Boulevard / Perimeter AM 8.3 A 8,5 A +0,1 +0,012 Road PM 16,1 B 15,9 B -0.4 +0,020 15, Stevens Creek Boulevard 1 Wolfe AM 37.0 D+ 37,3 D+ +0,4 +0,019 Road-Miller Avenue6 PM 42.9 D+ 45,5 D +3,2 +0,044 16. Stevens Creek Boulevard I Finch AM C 30,5 C +0.4 +0.026 Avenue PM 17,0 B 20,3 C+ +4.5 +0,232 17. Stevens Creek Boulevard / Tantau AM 19.4 B- 19,6 B- -0,0 +0,018 Avenue PM 20.6 C+ 19.6 B- -0.9 +0,008 tp 46 fEHR & PLl¡~~ ....nu..."o.{u.'",..." Draft Fmal Ca/abazas Place rIA December 2005 -- TABLE 10 (CONTINUED) BACKGROUND AND CUMULATIVE PLUS PROJECT INTERSECTION LEVELS OF SERVICE Background Cumulative plus Project . Peak " inCrit "inCrlt Intersection Houri Delay' LOS' Delay' LOS' Delay' VIC' 18, Stevens Creek Boulevard 11-280 AM 34.1 c- 33,8 C- +2,2 +0,037 Ramps PM 46,1 0 49,2 0 +7.1 +0,031 19, Stevens Creek Boulevard I Lawrence AM 22,0 C+ 23.9 C +2,1 +0.023 Expressway (W)' PM 26,7 C 28.4 C +2,3 +0,062 20, Stevens Creek Boulevard I Lawrence AM 37,7 0+ 37,6 0+ +0.0 -0,003 Expressway (E)6 PM 39,2 D 41,3 0 +2.4 +0,042 21, Bollinger Road I Tantau Avenue AM 10,6 A 10,7 B+ +0,1 +0.002 PM 10,0 A 10,1 B+ +0,1 +0,007 Notes: . 1 AM = morning peak-hour, PM = evening peak·hour. 2 Wlole intersection weighted average control delay expressed in seconds per vehicle for signalized and all·way stop intersections using methodology described in the 2000 Highway Capacity Manual, with adjusted saturation flow rates to reflect Santa Clara County Conditions. For two-way stop controlled un signalized intersections, total control delay for the worst movement. expressed in seconds per vehicle, Îs presented. LOS calculations conducted using the TRAFFIX level of service analysis software package. 3 LOS = Level of service 4 Change In critical movement delay between Background and Cumulative 'plus Project Conditions. A decrease in the critical delay indicates project trips were added to movements with low delays thus causing a decrease in the overall critical delay. 5 Change in the critical volume-to-capacity ratio 0IIC) between Background and Cumulative plus Project Conditions. 6 Designated CMP intersection. 7 Side-street stop control under Background Conditions and all-way stop controlled intersection under Cumulative plus project Conditions. 47 fP FEIIR & PHRS ,..."u'~H". 'U1U""" Dralt Final Calabazas Place TlA December 2005 - ~ TABLE 11 CUMULATIVE INTERSECTION LEVELS OF SERVICE No Project Project Peak !:J.in Crit óinCrit Project Intersection Hour' Delay" LOS' Delay" LOS' Delay' VlC' Contribution 8, Wolfe Road I Vallco Parkway AM 16,8 B- 19,5 B- +0,3 +0,006 50.0% PM 60,6 E ." - E +2,7 +0,011 47.8% Notes: 1 AM", morning peak-hour, PM", evening peak-hour. 2 Whole intersection weighted average conlrol delay expressed in seconds per vehicle for signalized and all·way stop intersections using methodology described in the 2000 Highway Capacity Manual, with adjusted saturation flow rates to reflect Santa Clara County Conditions. LOS calculations conducted using the TRAFFIX level of service analysis software package. 3 LOS", Level of service 4 Change in critical movement delay between Cumulative No Project and Cumulative plus Project Conditions. 5 Change in the critical volume-to-capacily ratio (V/C) between Cumulative No Project and Cumulative plus Project Conditions. .---------- __________________'._____n____ fþ 48 FlHIt & PELltS ".."got",o.,.","".." Draft Fmal Calabazas Place TIA December 2005 , - 6. CONCLUSIONS With demolition of the existing 150,300 square feet of office space, the proposed 120,000 square feet of retail and 369 residential units is estimated to generate a net increase of 5,676 daily trips, a net increase of 12 AM peak· hour trips (133 fewer inbound/145 added outbound) and a net increase of 447 PM peak-hour trips (327 added inbound/120 added outbound). Intersection impacts were evaluated at twenty-one key intersections with level of service calculations during the weekday morning (AM) and evening (PM) peak periods for Existing, Background, Project, and Cumulative Conditions. The results of the analysis showed that the proposed project would not have a significant impact on any of the study intersections through Project Conditions. The proposed project would have a less-than-significant impact to the freeway segments. Under Cumulative plus Project Conditions, the Vallco Parkway and Wolfe Road intersection would operate unacceptably and the project would have a significant cumulative impact. A traffic simulation model using SimTraffic software shows there is good progression along Wolfe Road and Stevens Creek Boulevard with the exception of the eastbound left-turns on Stevens Creek Boulevard at Wolle Road. However, the elimination of a through lane and installation of parallel on-street parking is not recommended unless it is part of a larger project to reduce through capacity or provide parking on a longer segment of Stevens Creek Boùlevard. The number and spacingot the driveways is sufficient to accommodate the projected traffic volumes generated by the proposed development. The on-site circulation is considered acceptable. It is recommended that sidewalks be provided along the west side of Tantau Avenue between Vallco Parkway and Pruneridge Avenue including a raised sidewalk along the existing bridge over 1-280. Textured pedestrian crosswalks are recommended on Vallco Parkway at the new intersection west of Tantau Avenue, In addition, pedestrian countdown heads are recommended at the Stevens Creek Boulevard intersections with Finch and Tantau Avenues. Modifications to the bicycle lanes on Vallco Parkway were recommended, With these changes, the project is estimated to have a less-than significant impact to the pedestrian and bicycle facilities, The project would not have a significant impact to the transit facilities since existing transit service is provided within one- quarter mile of the project site. According to the City's Municipal Code, 1,271 parking spaces are required. The proposed on-site supply of 1,261 spaces does not meet the parking requirement. The project will provide sufficient parking for the residential uses. However, the retail and restaurant parking supply does not meet city parking requirements, Some of the on-street parking spaces on Vallco Parkway and Finch Avenue would be available for guests and overflow parking. However, there will still be insufficient parking for the retail uses. The project could implement either valet parking, off-site employee parking, reduce the project size, enter a shared-use agreement with Hewlett-Packard to use their parking lot during the evenings and weekends, add on-street parking along the north side of Vallco Parkway, or build fhe retail portion in phases with a parking monitoring program to ensure that adequate parking is provided. To accommodate demand and encourage nonmotorized transportation, the project shall provide 148 Class I bicycle spaces for the residential units and 24 Class II bicycle spaces for retail customers, 49 fþ f[HR & PEERS ,...".'''''00 (o.So,"." fì> FEHR& PEERS TRANSPORTATION CONSULTANTS MEMORANDUM Date; December 13, 2005 To: Gary Chao, City of Cupertino From: Kristiann Choy, P.E" Fehr and Peers Subject: Calabazas Place TtA - Park Trip Generation and Parking SJ05..795 Fehr & Peers has been asked to estimate trip generation and parking demand for the 3.5 acre public park that will be donated to the City of Cupertino by Toll Brothers as part of the Calabazas Place project. The City provided all information on the park's users. The park is expected to have similar uses as the Library Field on Torre Avenue. According to the information provided by the City, the park may include soccer, cricket, and volleyball league play. The different sports are scheduled so their games and practices do not overlap. The practices typically occur on weekdays between 3:00pm and 7:00pm. Games are held on Saturdays between 8:00 am and 7:00 pm. The park would typically have one soccer field, one cricket field, or up to 2 volleyball nets set up, A weekday schedule may include two back to back soccer practices from 3:30 pm to 6;30 pm with approximately 15 players per practice or volleyball practices from 5:00pm to 7:00pm with approximately 8 players per net. Saturday games for volleyball typically occur between 8:30 am and 11 ;30 am with a cricket game from 12;00 pm to 7;00 pm. The soccer leagues are youth leagues and the volleyball leagues are adult leagues. It was assumed that many of the soccer players are dropped off by parents. Trip generation was estimated for a worst case scenario which includes parents coming to pick their children up from one soccer practice and other parents dropping off children for the second soccer practice. Assuming that two-thirds of the soccer players are dropped off by their parents, we estimate that the soccer practices would generate 50 trips during the PM peak hour, These trips represent 23 percent of the residential project trips and 7 percent of all project trips. A volleyball practice would generate 16 trips during the PM peak hour assuming all of the players drive their own car and no carpooling occurs, Table 1 summarizes the PM peak hour trip estimates, 255 Market Street, #200, San Jose CA 95110 (408) 278-1700 Fax (408) 278.1717 www.fehrandpeers.oom Gary Chao December 13, 2005 Page 2 of 3 fþ FEHR & PEERS TRÞ<"SPORTATlON CON~UlUNTS TABLE 1 TRIP GENERATION ESTIMATES - PM PEAK HOUR Use Players In Out Total Soccer2 30' 25 25 50 Volleyball' 16 16 0 16 Notes: 1 Assumes two back to back soccer practices with 15 kids at each practice. 2 Assumes two-thirds of the players are dropped off by parents. 3 Assumes each volleyball player drives their own car to practice. The games are expected to have a higher parking demand than the practices since there will be more players as well as referees and spectators. Assuming an auto occupancy rate of 2,0 persons per vehicle for a soccer game and 0,8 spectators per player, we estimate a parking demand of 30 spaces. If there were back to back games, there would be another 15 spaces needed for the overlap of people coming before the previous game ended for a total parking demand of 45 spaces. Assuming 2 volleyball courts on game day and an auto occupancy rate of 1.2 persons per vehicle, the parking demand for volleyball games is 38 spaces. Table 2 summarizes the parking demand estimated for the park on a weekend game day. A cricket game is expected to have similar number of players as a soccer game with fewer spectators since the games last longer, so the parking demand for cricket games would be less than the soccer parking demand. As shown in Table 2, back to back soccer games would generate the highest demand of 45 spaces on a weekend day, TABLE 2 PARK PARKING DEMAND ON WEEKEND DA VS Parking Use Players Coaches Referees Spectators Demand Soccer 30 3 2 24 45' Volleyball 32 4 2 8 38 Assumptions: 1 Assumes two back to back soccer games. One soccer game would have a parking demand of 30 spaces. 2 Auto occupancy of 2.0 persons per vehicle for soccer and 1.2 persons per vehicle for volleyball. 3 2.0 spectators per player for soccer and 2 spectators per team for volleyball. The current Calabazas site plan shows 68 angled parking spaces on Finch Avenue. Thus, adequate parking would be provided for park uses, However, these 68 parking spaces (in BI croll Cßrothers et 217/00 :filS- America's Luxury Home Builder~ February 6, 2006 pB,.(. H····IB~'~ t,:~~~ . ~. ~- Gary Chao Associate PlaIll1er City of Cupertino 10300 Torre Avenue Cupertino, CA 95014 Dear Gary, Thank you for forwarding the letter from the Fremont Union High School District (FUHSD) dated February 2, 2006. The objection raised in the letter is the first time that Toll Brothers has been made aware of any objections from FUHSD, and unfortunately there are a few errors in Superintendent Rowley's assertions regarding the district's communications with Toll Brothers. As soon as I received a copy of the letter I called Superintendent Rowley's office to discuss it, and had a brief conversation with FUHSD Chief Business Officer Geoffrey KieW regarding the inaccuracies in the letter, for which he apologized. 1 also wanted to share these corrections with you and the City of Cupertino. In 2004, I contacted Superintendent Rowley's office regarding our pending proposal, and was directed to speak with Mr. Bill Flory, Director of Facilities Modernization. I first met with Mr. Flory at his office on August 11, 2004. We ·generally discussed Toll Brothers proposal, the student generation rates, and potential impacts on operating and facilities costs for the district. At that meeting, Mr. Flory confirmed that FUHSD had no concerns about accommodating the students generated ITom our proposed proj ect. In July 2005, the City of Cupertino authorized Schoolhouse Services to begin a School Impact Report for the proposed Toll Brothers project. On August 1, FUHSD received a set of our proposed plans ITom the City of Cupertino. We were asked by City Staff to contact FUHSD to ensure they were aware of our proposal and to address concerns about student enrollment impacts. On August 10,2005, Rick Nelson and I both met again with Mr. Flory to determine ifFUHSD had any questions or concerns about our proposed proj ect. Mr. Flory again represented that the School District believed that the student enrollment impacts of Toll's housing proposal would be sufficiently mitigated through the School Impact Fees. He did not request additional meetings, discussions, mitigation measures, or voluntary "subsidies" with us. Furthermore, Toll Brothers hosted two community meetings on September 21 and November 14, 2005. The second of these meetings was held at FUHSD's own Cupertino High School cafeteria, and the Superintendent's office and Mr. Flory received invitations to these meetings. No school board members or staff members attended either one. Finally, a letter from Superintendent Steve Rowley dated December 7,2005 indicated that FUHSD agreed with the conclusions of the City's School Impact Report and had 0.0 objection to the project. Following receipt of that letter, the City published the Expanded Initial Study on December 22, 2005. ' New York Stock Exchange. Symbol TOL Northern California Division lOO Park Place, Suite 140 . San Ramon, CA 94583. (925) 855·0260 . Fax (925) 855-9927 tollbrothers.com jýo+r-.s {¡r1W7 ~/ IV/ ()) ~b' wi rVJ HSÞ ~ F ÁYvj . /7 J;.. 4..$v /-L:a..W<uiY. . J.iI ~~ µ Vv~ '~ (D - 1 MAAIJ1A;·h;J;"0 10 Jduj ~.cc.. vV'f""V -W-=- W cJfL/ . ~ .~f1 ~~ : 0 ~ 7 ~ F ~~lJ''''' (rz4Þ7-1¡;¿) ~ ;J~~¡~ I .J- . Jh~-.J G1J YM~ U ~ ~ øølw;l ~ 7@ /0 ~rdL{.'iF';" Ad~ 7(j?d lID ~ S?Á- ä!u~ W cJ IIf~~ ~ßa4-5 ~ · ~ ~~';<P ¥ TJij-c~ 16 r~ , ~ + !uw rh rt f¡ t~VVt&- y ¡;~ · /~w1 ;;¿ - 57J 7() 1; ot;i;~ -~. (J,rrJd OM iuw ~ 3 ._ i : ---V?/-- ... - · j1'!"u4\..- M ødI þ()~) - ~ #:2,/3 ps-F · :PI ðð (ó/fO ~'-f4d:JJt ~ If J M W Úb~ · -+-+.uJ~1- /2dk~~ œ3A.~RßlE II». CCOA.lI'lE i!IJ1J1Icrß A.§§OCOA.1I1ES Ho&1iOJlurel ConsuIlants . 23535 Summit Road Los: Gales. CA 95033 408ß~ 1052 - û:. 2/7/ òlo l;tLS [ÄHIBw~~' . February 7. 2006 Jo Price Assistant Project Manager (Entitlements) Toll Brothers Inc. jprice I @tollbrothersinc.com R.E: Cupertino Project Ms. Price, You asked about the survivability of Western Sycamore #174 (Platanus racemosa). This is the largest tree on the project site at 60' tall and 70' branch spread. It is a very old species reaçbing the "ovennature" stage of life. Unfortunately, when the current development was built, this tree was left only a very small circle of soil and roots, and apparently no irrigation has supplied water to it fo a number of years. This circle was surrounded by a soil cut and covered by pavement, effectively reducing its absorbing root system dramatically. In rccent years, thc trce has lost several largc limbs, exposing large decay sites at the breaks. Trees, especially Western Sycamores, which have lost significant limbs are historically more likely to lose more limbs. In this species this is usually due to large cavities caused by interior decay. Since Western Sycamore is a riparian species, removing the environment, which supplied consistent moisture to the root zone, is unusually debilitating to this species. make the specimens decline more mpiùly than they might have. if water wcre consistently available. There are deformatioru¡..in the lower trunk that do not expose the truÍIlÂñtetÎor but probably indicate a hollow interior, since that is a common condition in Western Sycamores that are becoming overmature. When all of these factors are combined, this tree should be considered as declining, and although its life could no doubt be extended by fertilizing and pruning, additional loss oflarge limbs can be predicted. If development must occur near its drip line, this predictable limb loss should be taken into account. The potential for whole tree failure could be defined more precisely by a more thorough examination of the buttress root integrity and the presence or lack of a hollow trunk. It would be appropriate to remove this tree and replace it with a large nursery stock tree in a public park. in my opinion. Respectfully submitted, ~,tJ.~ Barrie D. Coate ..... BDC/ph C~ 2h ID~. ;#:/)' Kimberly Smith From: Sent: To: Cc: Subject: Steve Piasecki Thursday, February 02, 2006 4:45 PM City Council David Knapp; Carol Atwood; Ciddy Wordell; Gary Chao; Kimberly Smith; Grace Schmidt new letter from FUHSD Attachments: Letter - Toll Brothers Feb 2 OS.DOC EXHIBI~~~~ ~ Letter - Toll Brothers Feb 2 0... City Council, Attached is an updated response from thp FnHsn that PYpn:::.~c:::p.c: ,..."nrprn ;:¡hOHt the capital cost of accommodating the arlrlo~ higt c,...h~Q] ~+l1rlpnts projected from the Toll Bros. project. They are comfortable with the ongoing revenues from the property tax to serve the students but feel the capital contribution from the building permit mitigation fees is insufficient to house all of the student needs at Cupertino High School. The timeline for referral of the reports to the districts was as follows: -We initiated the contract with our school consultant Town Hall Services in July 2005 -The project plans were forwarded to the FUHSD and CUSD on August 1, 2005 - -The School Impact Report was completed by Town Hall Service in November 2005 and sent to the School Districts for review. -Staff received letters from the FUHSD dated December 7, 2005 and from CUSD on December 6, 2005. -February 2, 2006, the attached updated letter was received from FUHSD Staff will have paper copies of this letter at your desk 00. Tuesday evening. Thanks, Steve -----Original Message----- From: Rowley, Steve [mailto:steve rowley@fuhsd.org] Sent: Thursday, February 02, 2006 2:15 PM To: Steve Piasecki Subject: new letter Steve - the attached is a slightly revised version of the letter I sent over yesterday, Feb 1. We did speak with a Toll Bros. rep today and we have another meeting scheduled. It still does not change our fundamental position. Please make sure that Gary and Cydie discard yesterday's letter and substitute the new one coming to you later this afternoon. Please find attached a copy of that letter. «Letter - Toll Brothers Feb 2 06.DOC» STEPHEN R. ROWLEY, Ph.D. Superintendent of Schools Fremont Union High School District 589 West Fremont Avenue Sunnyvale, CA 94087 steve rowley@fuhsd.org Phone-(408)522-2201 FAX (408)245-5325 1 E," ·X"H'B'~ ,-~._- -- - ~;.." ·"j7fÜ·· . Q February 2, 2006 Ms. Cynthia Wordell, City PlaIll1er Mr. Gary Chao, Associate Planner City of Cupertino 10300 Torre Avenue Cupertino, CA 95014 Re: FUHSD Response to the proposed Toll Brothers, L.L.C. Calabazas Place Project Fiscal and Enrollment Impact Analysis Dear Ms. Wordell and Mr. Chao: Please accept this letter as a replacement to my earlier letter to you dated Dec. 5, 2005. As you know, we recently conducted a long-range enrollment and school capacity study and are now better able to respond to new development proposals such as the Toll Brothers Calabazas Development. I have reviewed the Calabazas Place Fiscal and Enrollment Impact Report (Report) prepared by Town Hall Services. Per your request, this correspondence represents the response regarding the project. On previous occasions I have commented on similar proposed residential projects, as well as the recently adopted City of Cupertino General Plan Update. The Fremont Union High School District (FUHSD) appreciates the opportunity to respond to City staff in areas where proposed development will have an impact on FUHSD schools. Below, I offer some revised comments that highlight the District's perspective as it relates to the Toll Brothers proposed 369 residential town homes and flats project. I. The Student Generation Rate (SGR) of 0.10 used in the Report for projected enrollment impacts is appropriate and accepted by both the City of Cupertino and FUHSD. A net of approximately 38 students will likely be generated from this project. These students will be enrolled at Cupertino High School. 2. It is estimated that the assessed valuation of the property will generate more property tax revenue to FUHSD than the cost of the students coming ITom the project. The estimated amount of revenue in excess of the cost per student is roughly $10,000. This is a fmancial benefit to the District (see Report discussion for operational revenue and impacts). 3. On the attached Enrollment and Capacity summary, you will see that the enrollment of Cupertino High is expected to rise approximately two hundred (200) students in the next four years, which will push its enrollment above an ideal capacity (85%) but below its maximum capacity (100%). Students generated from the Toll Brothers project accounts for some of this increase, but clearly not most of the enrollment increases. Page 2 You will see ITom our projections that enrollment will continue to increase at Cupertino High School. By 2015, we estimate that Cupertino High School will be significantly above both its ideal and maximum capacity. This is true of Fremont High School as well. Conversely, Cupertino High School's neighboring school, Lynbrook High School, will experience a sharp enrollment decline and be significantly under its ideal and maximum capacity. The Fremont Union High School District Board of Trustees has just recently received this information and has no immediate plans on how to address overcrowding at Fremont and Cupertino High Schools or declining enrollment at Lynbrook High School which will Occur nearly a decade ITom now. Therefore, there is ample time to consider long-range options. Currently, the Board of Trustees will be considering my recommendation to permit Open Enrollment at Lynbrook next year. This Open Enrollment option is actually a requirement of the laws pertaining to Open Enrollment. I would expect that in the next few years, students transferring to Lynbrook High School would alleviate some of the projected increase in Cupertino High School's enrollment. 4. As stated in the fiscal impacts section of the Report, the development impact fee revenue is nearly $411,000 less than the total facilities cost impact to house the 38 students generated as a result of the proposed project. Toll Brothers has been in communication with FUHSD once in August 2004 and again in August 2005. Mitigation offacilities was not discussed at either meeting. Town Hall Services did not complete its analysis of the impact of the Calabazas Place project until November 2005. Toll Brothers did not initiate any contact with me until today when it becmne aware of our concerns through this letter when it was submitted to the City Planning Department. The lack of an initiated response by Toll Brothers to facilities impact gives us great concern because the facilities impact beyond development fees represents a significant, negative financial impact on the Fremont Union High School District. Toll Brothers representatives have now agreed to meet with FUHSD staff, hopefully to reach accord on mitigation. However. until such mitil!ation is successfuUv concluded and the imoact to facilities is removed. FUHSD exoresses its obiection to the Calabazas Place oroiect at this time. Please note: I was contacted just today by Planning Department Staff about the scheduled review of the Toll Brothers project only six days ITom today. The FUHSD Board of Trustees has had no time to review my more recent analysis. I am sure the Board shares my objection and perhaps has other concerns about Toll Brothers Calabazas and the cumulative impact of high-density developments in the Cupertino High School area. Conclusion: Based on development analysis by School House Services (aka Town Hall Services), the plaIll1ed developments in the Vallco area of the City (including Toll Brothers) will generate student growth in the Cupertino High School attendance area. The total magnitude of those projects is Re: FUHSD Response to the proposed Toll Brothers, L.L.C. Calabazas Place Project Fiscal and Enrollment Impact Analysis February t, 2006 Page 3 966 units, with a cumulative enrollment impact of 95 students. These students will contribute a part, but not a majority part, of the enrollment increases at Cupertino High School. Assuming that high-density projects will continue to generate property tax revenue in excess of the costs of the students generated, it is foreseeable that FUHSD will not be troubled by the impact of new students from these projects to our general fimd. However, the incremental impact of one project after another does concern us in terms of impact to facilities and school capacity. At a minimum, the City Council and Planning Commission can expect FUHSD to object to developers who make no attempt to mitigate facilities impact on our schools. Based on the advice of the Counsel to the City Council, we understand that the City Council cannot legally deny a project on the basis of the objection oflocal schools. Reciprocally, FUHSD has stated in the previous letter to you [regarding Taylor Woodrow Bungalow apartments, January II, 2006]: . . . the District wishes to stress that it takes no position regarding any other aspect of merits of the above referenced project [Taylor Woodrow], either pro or con. The District and its Board are generally not in a position to recommend or pass judgment on aspects of the proposed project that are unrelated to schools. In other words, we will be prepared to oppose or object to a developer who has not mitigated its impact on our schools. Once these objections have been removed, the Fremont Union High School District will not support or oppose any project. The Fremont Union High School District staff will continue to cooperate with the City's staff to evaluate each new development proposal based on the impact to our general fimd, school capacity, and physical facilities. We will do so on a proposed project-by-project basis, as well as continuing to assess the cumulative impacts of development over time. Sincerely, Stephen R. Rowley Superintendent Enclosures C: FUHSD Board of Trustees Re: FUHSD Response to the proposed Toll Brothers, L.L.C. Calabazas Place Project Fiscal and Enrollment Impact Analysis February 1, 2006 ~c .Lillo b #- IS- FREMONT UNION HIGH SCHOOL DISTRICT Cupertino, Fremont, Homestead, Lynbrook, Manta Vista High Schools and Adult/Community Education Stephen R. Rowley, Ph.D., Superintendent of Schools February 2, 2006 Ms. Cynthia Wordell, City Planner Mr. Gary Chao, Associate Planner City of Co.pertio.o 10300 Torre A venue Cupertino, CA 95014 Re: FUHSD Response to the proposed Toll Brothers, L,L.C. Calabazas Place Project Fiscal and Enrollment Impact Analysis Dear Ms. Wordell and Mr. Chao: Please accept this letter as a replacement to my earlier letter to you dated Dec. 5, 2005. As you know, we recently conducted a long-range enrollment and school capacity study and are now better able to respond to new development proposals such as the Toll Brothers Calabazas Development. I have reviewed the Calabazas Place Fiscal and Enrollment Impact Report (Report) prepared by Town Hall Services. Per your request, this correspondence represents the response regarding the project. 00. previous occasions I have commented on similar proposed residential projects, as well as the recently adopted City of Cupertino General Plan Update. The Fremont Union High School District (FUHSD) appreciates the opportunity to respond to City staff in areas where proposed development will have an impact on FUHSD schools. Below, I offer some revised comments that higWight the District's perspective as it relates to the Toll Brothers proposed 369 residential town homes and flats project. I. The Student Generation Rate (SGR) of 0.10 used in the Report for projected enrollment impacts is appropriate and accepted by both the City of Cupertino and FUHSD. A net of approximately 38 students will likely be generated from this project. These students will be enrolled at Cupertino High School. 2. It is estimated that the assessed valuation of the property will generate more property tax revenue to FUHSD than the cost of the stu.dents canling frOlll the project. The estimated amount of revenue in excess of the cost per student is rougWy $10,000. This is a financial benefit to the District (see Report discussion for operational revenue and impacts). 3. On the attached Enrollment and Capacity summary, you will see that the enrollment of Cupertino High is expected to rise approximately two hundred (200) students in the next four years, which will push its enrollment above an ideal capacity (85%) but below its maximum capacity (100%). Students generated from the Toll Brothers project accounts for some of this increase, but clearly not most of the enrollment increases. You will see from our projections that enrollment will continue to increase at Cupertino High School. By 2015, we estimate that Cupertino High School will be significantly above both its ideal and maximum capacity. This is true of Fremont High School as w.ell. Conversely, Cupertino High School's neighboring school, Lyo.brook High School, will experience a sharp enrollment decline and be significantly under its ideal and maximum capacity. BOARD OF TRUSTEES: Kat/llyn Ho, Avie Katz, Nancy A. Newlon, Barbara F NUlles, Homer H. C. Tong 589 West Fremont Avenue Post Office Box F Sunnyvale, CA 94087 AN EQUAL OPPORTUNITY EMPLOYER (408) 522·2200 FAX (408) 245·5325 http://www.fuhsd.org/ Page 2 The Fremont Union High School District Board of Trustees has just recently received this information and has 0.0 immediate plans on how to address overcrowding at Fremont and Cupertino High Schools or declining enrollment at Lynbrook High School which will occur nearly a decade ITom now. Therefore, there is mnple time to consider long-range options. Currently, the Board of Trustees will be considering my recommendation to permit Open Enrollment at Lynbrook next year. This Open Enrollment option is actually a requirement of the laws pertaining to Open Enrollment. I would expect that in the next few years, students transferring to Lyo.brook High School would alleviate some of the projected increase in Cupertino High School's enrollment. 4. As stated in the fiscal impacts section of the Report, the development impact fee revenue is nearly $411,000 less than the total facilities cost impact to house the 38 students genetated as a result of the proposed project. Toll Brothers has been in communication with FUHSD once in August 2004 and again in August 2005. Mitigation of facilities was not discussed at either meeting. Town Hall Services did not complete its analysis of the impact of the Calabazas Place project until November 2005. Toll Brothers did not initiate any contact with me until today when it became aware of our concerns through this letter when it was submitted to the City Planning Department. The lack of an initiated response by Toll Brothers to facilities impact gives us great concern because the facilities impact beyond development fees represents a significant, negative financial impact 00. the Fremont Union High School District. Toll Brothers representatives have now agreed to meet with FUHSD staff, hopefully to reach accord on mitigation. However. until such mitigation is successfullv concluded and the imDact to facilities is removed. FUHSD expresses its obiection to the Calabazas Place project at this time. Please note: I was contacted just today by Planning Department Staff about the scheduled review of the Toll Brothers project only six days from today. The FUHSD Board of Trustees has had 0.0 time to review my more recent analysis. I am sure the Board shares my objection and perhaps has other concerns about Toll Brothers Calabazas and the cumulative impact of high-density developments in the Cupertino High School area. . Conclusion: Based on developlnent analysis by School House Services (aka Town Hall Services), the planned developments in the Valko area of the City (including Toll Brothers) will generate student growth in the Cupertino High School attendance area. The total magnitude of those projects is 966 units, with a cumulative enrollment impact of 95 students. These students will contribute a part, but not a majority part, of the enrollment increases at Cupertino High School. Assuming that high-density projects will continue to generate property tax revenue in excess of the costs of the students generated, it is foreseeable that FUHSD will not be troubled by the impact of new students from these projects to our general fund. However, the incremental impact of one project after another does concern us in terms of impact to facilities and school capacity. At a minimum, the City Council and Planning Commission can expect FUHSD to object to developers who make 0.0 attempt to mitigate facilities impact on our schools. Based 00. the advice of the Counsel to the City Council, we understand that the City Council cannot legally deny a project 00. the basis of the objection oflocal schools. Reciprocally, FUHSD has stated in the previous letter to you [regarding Taylor Woodrow Bungalow apartments, January 11,2006]: Re: FUHSD Response to the proposed Toll Brothers, L.L.c. Calabazas Place Project Fiscal and Enrollment Impact Analysis February 2, 2006 Page 3 . . . the District wishes to stress that it takes 0.0 position regarding any other aspect of merits of the above referenced project [Taylor Woodrow], either pro or con. The District and its Board are generally not in a position to recommend or pass judgment on aspects of the proposed project that are unrelated to schools. In other words, we wi1l be prepared to oppose or object to a developer who has not mitigated its impact 00. our schools. Once these objections have been removed, the Fremont Union High School District wi1l not support or oppose any project. The Fremont Union High School District staff will continue to cooperate with the City's staff to evaluate each new development proposal based on the impact to our general fund, school capacity, and physical facilities. We wi1l do so on a proposed project-by-project basis, as well as continuing to assess the cumulative impacts of development over time. "~ S.~h~ R. ~l-' Superintendent Enclosures C: FUHSD Board of Trustees Re: FUHSD Response to the proposed Toll Brothers, L.L.c. Calabazas Place Project Fiscal and Enrollment Impact Analysis February 2, 2006 CBEDS Capacity M" CBEDS/i\bx Ideal CBEDS/Ideal CBEDS Capacity Max CBED8f!'vlax Ideal CBEDS/ldeal School 2007 Ratio ~ Difference Caoacitl' Difference W! &1iQ. CaÌ>acitv ~ CaDacit\' ~ - - - - - - - - Fremont High 1973 96.]% 2053 80 !760 -2]3 1988 96.8% 2053 65 1760 -228 Cupertino High ]6]4 81.3% 2011 377 ]723 89 1725 85.8% 201! 286 In] ·2 MontaVistaHigh 2488 97.8% 2543 55 2179 -309 2439 95.9% 254] 10' 2\79 _260 L)'nbrook High 1836 76.0% 2416 580 2070 2]4 ]765 73.]% 2416 651 2070 305 Homestead High 220] 8L7% 2694 493 2308 107 2165 80:4% 2694 29 2]08 143 ~Itir~î( ~~t1?J~~ iiIfnf;';flli~~¡¡t~~l§,8.~;::~; ~~IÔ94Q::' ~rilliN~?î~~~~, :;)t\QoíJi\ ~ ffi¡ÞM~~~ ~¡a.'þ]?¥ ~ CßËñŠ ~. Max CB£DSfì\lax ~ CBEDS/ldeal f,1 .;¡ School 2009 Ratio ~ Difference Caoacitl' Difference :!- ê - - - if ¡~ Fremont High 2191 1067% 2053 -138 \760 -43! ,¡ ~ i~ Cupertino High 1807 89.9% 2011 204 \723 ·84 :i , . MontaVistal-ligh 2454 96.5% "" 2543 89 2179 '275 ~ 11 L)"nbrook High 1622 67.!% 2416 794 2070 448 ~ !1 Homeste:¡d High 2076 77.!% 2694 618 2308 232 ¡ " ,. Tot¡¡ls "!O~~I) ,,-' jr7J7;;':' ~..,- J56i,':' ";10040" . .";:\IJO:': :!< ~ ~ - CHEDS 1005 _ }OOS do IW' ¡IId"dv.<pvcioluIIQI)/ ellrQllllwlI.< (C""''''IIIIifJ' Da)", Middlv Cul/vKt, .\'('n' SiaN.!; IOU adju_WII""I/"r .'pu-ial ,\'(.j¡ [¡u.' b,'"1J mad.. fm' (BEDS 1O(J9 /31/2006146 P~i CBEDS· Capacity Max CBEDS/I\-Iax Ideal CBEDS/ldeal CBEDS Capacity ]\'Iax CߣDSIi\hx Ideal CBEDS/ldeal Sehool ~ Ratio Capacit...· ~ CaD¡¡city Difference 2006 ß!.!!.2 C:ll}acit~· Difference CarJ¡¡city Difference Fremont High 1824 88.8% 205] 229 1760 -64 1866 90.9% 2053 187 1760 -106 CuperlinoHigh 1539 76,5% 20IJ 472 ]723 184 ]592 79.2% 2011 419 1723 131 Monta Vista High 2464 96.9% 2543 79 2179 -285 2507 98.6% 2543 36 2179 -328 Lynbrook High 1853 76.7% 2416 563 2070 2]7 !8]6 75.2% 2416 600 2070 254 Homestead High 2085 77.4% 2694 609 2j08 223 2202 81.7% 2694 492 2308 106 ..,' ~>,.\~17j3r~~'¥.~~w.~miit~;1~~illi!'~i'\\§i'!1~1!~@j¡¡i]9if:íö_;';~~~7fl~:g;t~!~~t!!jf,ï; :lW~l:?~a:3;~¡¡;J~Th~~~:tÐ~lt~1R~.fj:j[ïri\~1t;¡~/L'i-;¡:t73.¡~;B;:5)fi;i ¡'I jø04ÔJr;~- '1'" ~ ~ :57';" ".T' I Fj'{!/IWIII UIIÎOII HigJr Sc/lool DiStricf Current & Projected Enrollment EllfOlim{!ut/CapadIJ' IGlysis EnrollmenVCapacity Analysis Fremont Union High School District Enrollment/Capacity in 2015 CBEDS Capacity Max CBEDS/Max Ideal CBEDSlIdeal School 2015 Ratio Capacity Difference Capacity Difference Fremont High 2649 129.0% 2053 ·596 1760 ·889 Cupertino High 2348 116.8% 2011 ·337 1723 -625 Moo.ta Vista High 2328 91.5% 2543 215 2179 ·149 Lyo.brook High 1381 57.2% 2416 1035 2070 689 Homestead High 2346 87.1% 2694 348 2308 ·38 ;'7!il:m¡œ_ lìï\w5~i1~~íï¡¡'ä~!~ý§,jillf1j~Jtº,~,Q~iiI~:i[QlgI1~!!~ i:\!="" .' "' -.- 1/3112006146 PM No adjustment for special schools (Community Day, Middle Cot/ege, New Start) has been made. cc.. 2hJD~ :#Is- Kimberly Smith From: Sent: To: Cc: Subject: Marie Miller Monday, February 06, 2006 12:53 PM City Council City Clerk; Julia Lamy; Therese Ambrosi Smith; Christine Pierce; Estelle Incociati; Frank Yap; Julia Lamy; Linda Walker; Mavis Smith Senior Citizens Commision action EXHIBrr Dear Mayor and Councilmembers: At a regular adjourned meeting on February 2, 2006, the Senior Citizens Commission received a presentation from Gary Chao, Associate City Planner, and Jo Price, Toll Brothers, on the senior housing element of the Calabazas Place project. The Commission also took public comments on the matter. The Commission took the following action: ACTION: A motion was made, seconded and passed 3-1 to endorse the senior J10using element in Alternative A_of the Toll Brothers Calabazas Place project. Regards, Julia Lamy, Staff Liaison Senior Citizens Commission 1 1"=±335' N Aug. 2002 ._-~, III!. . . . / cStevefíS"6féëk··Blvd':········· . II II '~~.... .,<~~ '" , I I ¡ / / / / I =-~ ~ I . ~l t!!!!. ,.~^ u,......_{l.......II.. ......... -.-... ---....."" - ---_.. "1_~1'W·'" 'Y""'¡1' 'UIriIIII...œ: ,..._...'õOIo_ ~ .s .. .JÙ I\I/,() ~~o ó'~~ ,I..~o ~}:-~~~ ~J.- NB ,.... EI'Itry5lognCotufM COMMERCIAL LANDSCAPE PLAN ........-... .".->~... r- - -.--____~....... r"'""-- \ .~'---\...':'.-- ~_ \..~-' i -,...,... _~~-"" _ I JII1'......_ \ ~,_-ft<__O:O "-.--".-,-----...--..,,......- .-r.__.__~ "'""'" PuNk Art Along ~ Creek Blvd ,\..- fGaWlooa- _A iU'!'JiØ~,,~ -- KIoo~_ --~-.,. ~ ---........ ..,fwtI'!....,f9I"n, naIIr '1.IIIíIiJ.~ ~",,(oa¡"'" .- b ... ... ¡ .. "'"""'" :f^''-Á,!. .. ~^ UJ___\l.1s,ø",,1J -.J:IIiIi YCIIoo~._ _r-_"""'-M -- _T......~_·.. I'!otIf_.....i'IItf'l1it fu.:i t tU&ìiel.., 1~~.,.ÐIt_ , < rD . c i , , ) ~.,ø .. - ~Qcclc:bW. L..J " j~~ - ~ . l J -.rmo.... ^ illiU., . .D - . .D ..... ... 1."'.110 o ¡^..;: ~ ~ + Iì3 Stalls ,( ~ k ~,J ~- AIJ'iirftIItiwA. U'_~.Ji¡¡ -- WIoo·_~" ----..,. ~ -------- ...~...""".!* TOlllilf ·LWiII.·~ 'I" .ut· ~~,r>.o""" I> d .. N&h:\ ;,...... ~Od!PMI. .. rYQ/ ~ections were studied 6 N NOTTO SCALE LEGEND . . S1udy InlerSedlon IZ2J . PIo od LoœIIon '" 'i~ ~i ~I ;;¡ il < ;:!, ! ~ ~ ~ i! ~i::..e¡.¡,;; ]¡ ø . ~ ~ dS . ø .. - - n Pi r lcC ; - , ,..---, ; I , ........ :1:,..., CJ -z...., I I " ~~ Park Alternatives Provide the City the option to purchase the .21-acre parcel and funding to purchase a park in Rancho Rincanada Dedicate the .21-acre parcel in lieu of funding for additional Rancho Park 1. 2. Dedicate the .21-acre parcel and reduce the pan handle by .21-acres from. 71 to .50 acres 3. J¡ 5 "" Q a " JJ ~ ~ "" Q ;& " ~ t.--.. *' --........ ..- r_~-. r-....,.., :tII tl 1'! '1JIíìr¡._, ~............ Ill::;: ~ to .. ... ,.... 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D: flIeD 8et';..uII8 dg It,'" 8Idg 8_.. -- 1J 3' " Q o o i!' ~ Q ;¡o ~ ~ TABLE 9 PROJECT PARKING REQUIREMENTS AND SUPPLY City Code Requirements Use Rate Spaces Parking Provided' - Retail (87 ksl) 1 per 250 s.f. 348 Restaurant with bar (150 seats 1 per 3 seats 50 & 20 employees) 1 per employee 20 Restaurant without bar (100 1 per 4 seats 25 405 seats & 10 employees) 1 per employee 10 Specialty Food (10 ksf wi no 1 per 250 s.f. or 40 seats & 9 ksf wi 120 seats) 1 per 3 seats 40 North Townhomes (108 d.u.) 216 305 North Condos (48 d.u.) 96 100 West Condos (95 d.u.) 2.0 per d.u. 190 196 East Condos (118 d.u.) I 236 255 Tota~ - 1,271 1,261 Notes: 1 The on-street parking on Valce Parkway (47 spaces) and Finch Avenue (68 spaces) can be used by guests, residents, n aU customers., and public park users. Ho_ver, the on-street parking is not included in the proposed on-site parking SUIT!. Source: City of Cupertino. 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Jii.., ,,~ 'I Ó::· .... ,. .....- '-~ <:. .~. , ~ . ~ . ....r-·'.? , ,. ~ IF t' : j .(" .. ~ ¡~ _ _ "" _~... r~,. ,!~.:- "'"',-".. L. ., _'. ~ !..l":) ",_""" . ~. _ j!t"._ . - ,l.,.,-.' ',¡ii¡'."' ,-,' ',', '.. . "'¡". ........ ._" -~ I,,: . . . .i" ............. ..~,.. ._- 'J'. ~ ~------_._---~~ ........ .__. -~ -- . ..". " , ._.....~.._d"."_._._.'" _, -' ' . J¡ 5· " Q 0. o JJ o ~ Q ;¡¡ " ~ " " ¡¡; Q Q " ;¡¡ ~ ¡¡; Q ~ ~ " s· ¡¡¡ Q C ~ " o '" it Q ~ " ~ , Propo'~c ~I 804 SlJaces 505 ~~ 505~~ " ;:112 City Required 804 spaces 533 spaces 45 spaces 578 s aces Parking (Senior Option A) Residential Oll-si te: 774 spaces Vallco Parkway: 15 spaces Vista 0 rive: 15 spaces Total: Commercial all-site: 405 spaces all-street (100): Fillc/¡ AvellLle 68 spaces Vallco Parkway 32 spaces Total: Park Parkin Demand Proïection: Total 3i 5 " "- D D JJ m '" o " "- ;Ii " ~ 10 " ;; Q 2 )J o ~ Q ~ 10 ~ )¡ 5 ¡¡; Q 0. " :¡¡ . '" " ¡¡; Q ~ ~ ." " " "- g OJ . ~ "- ~ ~ ~ ~ ¡¡; Q g JJ . ~ if; Q ~ ~