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08. Aozasa/Greenleaf Dr City of Cupertino 10300 Torre Avenue Cupertino, CA 95014 (408) 777-3308 Fax: (408) 777-3333 CUPEIQ1NO Community Development Department Summary Agenda Item No._ Agenda Date: October 18, 2005 SUBJECT Consider an appeal of the Planning Commission's approval of Application No, TM 2004-05, Wayne Aozasa (CA Water Service), located on Greenleaf Dr" APN 326-33-107, (This item was continued from October 4): Tentative Map to subdivide a ,95-acre parcel into four lots ranging from approximately 6,430 square feet to 8,880 square feet, plus a remainder of 11,500 square feet RECOMMENDATION The City Council can take any of the following actions: 1) Uphold the appeal by making findings that the proposal does not comply with the Parcel Map Ordinance; Or 2) Deny the appeal with conditions of approval as listed in Exhibit A; Or 3) Deny the appeal and modify the proposal with the modified conditions of approval. BACKGROUND At its January 25, 2005 meeting, the Planning Commission approved the project (4-0-1, with Commissioner Wong abstaining), The approval was appealed by Cathy & Dale Helgersen and Leo & Jian Wang, residing at 20697 Dunbar Drive and 20673 Greenleaf Drive, respectively, The City Council considered the appeal at its March 15, 2005 meeting and directed staff to obtain an independent water consultant to provide water quality sampling of the existing water well and evaluate the project for any potential water quality impacts, Staff obtained a list of pre-qualified environmental consultants from Santa Clara Water District. Approximately 13 consultants were initially contacted and requests for proposal were sent out to four consultants, SLR International TM-2004-05 Page 2 Greenleaf Subdivision October 18, 2005 Corporation (SLR) in conjunction with The Source Group, Inc, (SGI) were selected as the consultants for this task. This report will summarize their findings and analysis, DISCUSSION Water Quality Sampling On September 8, 2005 and September 28, 2005, water samples of the well were taken, The samples were transported to the BC Laboratories of Bakersfiled, California to undergo the following analyses: · Volatile Organic Compounds (VOCs) · Semivolatile Organic Compounds (SVOCs) · Trace Metals · Anions and Cations · Perchlorate (at the request of appellant Mrs, Helgerson) According to the consultant, these analyses are typical of potable water supplies and are based on the Safe Drinking Water Protection Act. All potable water supplies undergo regular sampling and analysis to ensure that water quality is maintained for public consumption, In addition, the analytical methods used in these water samples were developed by the U.s, Environmental Protection Agency and are the same tests that are conducted on supplies of tap water within the County of Santa Clara, SLR also contacted James Scott, the laboratory manager of the Santa Clara Valley Water District (SCVWD), to confirm their required analytical program for the drinking water they control. All analytical tests run on the water are the same as those required by the regulatory agency for analysis of drinking water supplies, Each analytical test targets specific compounds, The lower limit at which their presence can be detected in a sample is the detection limit. It is desirable for the detection limit to be below thresholds (know as the" action levels") at which chemical may cause toxicity and present potential human health concerns, Based on the laboratory test results, all of the analysis reports levels of detection below their respective action levels, Please refer to the attached well sampling report prepared by SLR for the full analysis and laboratory data, Qualitative Risk Evaluation The proposed subdivision will involve in the addition of three new homes and a paved cul-de-sac, In addition, new associated new waterl storm drainl sewer lines (approximately 5 feet below ground surface are proposed to serve the new homes, The new water, storm drain and sewer lines are set back more than 50 feet away from the existing well facility, This is a SCVWD requirement to ensure that any construction activities associated with the new piping will not impact the well facility from any chemical releases, accidents or other activities, TM-2004-05 Page 3 Greenleaf Subdivision October 18, 2005 According to SRL, there are several intervening aquifer layers between the ground surface and the actual usable water zone of the well, Some facts about the well facility and the general soil makeup of the site are: · The groundwater is present in the well at approximately 700 feet bgs · There are multiple layers of soil and groundwater before the productive water zone · Any potential contaminants released from construction activities or from the residences would need to pass through multiple layers of soils and groundwater · Disturbance of local soil or shallow groundwater due to construction and utility piping activities will be contained within the first encountered groundwater The water consultant concludes that no impacts are expected to any deeper soil or the production well. Other changes following development may include increased vehicular and human activities, The consultant also confirms that the chemicals released from the vehicle exhaust will eventually deposit on the ground surface or onto the topsoil. These pollutants will eventually runoff into the storm drain system andlor be screened by the initial layers of soil. Either way, the consultant concludes that there is no potential for these activities to impact the water well, Please refer to the attached report for the full detailed analysis (Exhibit q, Other Related Water A~ency Feedbacks Staff contacted representatives of the Environmental Protection Agency (EP A, Office of Ground Water and Drinking Water) and San Francisco Regional Water Quality Control Board to discuss the water quality concerns on the project, Both the EP A and the water quality control board have confirmed that they have no concerns on the project and the project will not trigger any of their review process (see Exhibit D), Representatives from each office also have spoken to the appellant (Mrs, Helgerson) and informed her that they cannot help her with her issues, Please see the second email dated April 18, 2005, ENCLOSURES Exhibit A: City Council Staff Report, March 15, 2005, Exhibit B: March 15, 2005 City Council Meeting Minutes Exhibit C: Water Quality Report and Analysis, prepared by SRL International Corporations, Exhibit D: Email correspondences with the Environmental Protection Agency, dated April 21, 2005, Prepared by: Gary Chao, Associate Planner TM-2004-05 Page 4 Greenleaf Subdivision October 18, 2005 Approved by: Steve ecki Director, Community Development -9W1L David W, Knapp City Manager EXHIBIT A City of Cupertino 10300 Torre Avenue Cupertino, CA 9S014 (408) 777-3308 Fax: (408) 777-3333 CUPEIQ1NO Community Development Department Summary Agenda Item No. !1 Agenda Date: March IS, 200S Application: TM-2004-0S Applicant (s): Wayne Aozasa Property Location: Greenleaf Drive (APN: 326-33-107) RECOMMENDATION The City Council can take any of the following actions: 1) Uphold the appeal by making findings that the proposal does not comply with the Parcel Map Ordinance; Or 2) Deny the appeal with conditions of approval as listed in Exhibit A; Or 3) Deny the appeal and modify the proposal with the modified conditions of approval. Project Data: General Plan Designation: OfficelIndustriallCommercialjResidential Current Zoning: P(CG, ML, RES 4-10) Project Consistency with: General Plan: Yes, Zoning: Yes, Environmental Assessment: Categorically Exempt Application Summary: Consider an appeal of a Planning Commission approval of Application No, TM-2004- OS, Wayne Aozasa (California Water Service), located on Greenleaf Dr" APN: 326-33- 107, for a tentative map to subdivide a ,95-acre parcel into four lots ranging from approximately 6,430 square feet to 8,880 square feet, plus a remainder of 11,500 square feet. q~1 TM-20004-05 Page 2 BACKGROUND At its January 25, 2005 meeting, the Planning Commission heard the public testimonies and approved the project (4-0-1, with Commissioner Wong abstaining), The approval is being appealed by Cathy & Dale Helgersen and Leo & Jian Wang, residing at 20697 Dunbar Drive and 20673 Greenleaf Drive, respectively, The appellants also submitted a petition signed by 78 neighboring residents urging the City Council to uphold the appeal. Greenleaf Subdivision March 15, 2005 DISCUSSION Project Description The project is located near the terminus of Greenleaf Drive and is surrounded by commercial uses to the east and south and single-family uses to the north and west. Currently the site is a the California Water Service pumping station for the City, The project proposes to retain the pumping station on lot 5 (11,500 square feet) and create three residential parcels (lots 1 - 3) with a private ingressl egress street (lot 4) in the middle, The proposed residential lots range from 7,000 to 8,500 square feet in size, which is consistent with the surrounding residential properties. The proposed lots will comply with development standards of the R1 Ordinance, Appeal Justification Cathy & Dale Helgersen and Leo & Jian Wang are appealing the decision of the Planning Commission for the following reasons: . Water quality safety issues . Tree removal · Street (vehicular) safety issue around the existing water well and on Greenleaf Dr, Water quality safety The appellants expressed concerns of the possible contamination of the existing well located on the water company's site from the new sewer system of the project, Discussion: According to the Santa Clara Water District (SCWD), potable water (treated water) and sanitary sewer lines must be at least 10 feet apart horizontally, The minimum distance for sewer lines to a new well is 50 feet horizontally, According to California Water Service, this separation can be less if the sewer line is located next to an existing well (which is the case in this project), However, the applicant has confirmed that all of the proposed sewer lines will be at least 50 feet away from the existing well. Staff has confirmation from the SCWD that the proposed subdivision will not pose any greater 9~;). TM-20004-05 Page 3 Greenleaf Subdivision March 15, 2005 threat of contamination to the water supply than the existing homes and sewer improvements in the neighborhood as described in an email received from the SCWD (Exhibit E), Tree Removal The appellants state that the trees removed as part of this project have been providing aid to the accumulation of ground water that makes it possible for this well to flourish, In addition, their removal will negatively impact the aesthetics and privacy screening of the area, Discussion: The existing well is approximately 715 feet deep, Therefore, the removal of the trees will not affect the performance of the well, The City's Arborist prepared a tree report on the project site, which identified 74 trees. The project proposes to remove 37 of them that are either located in the proposed roadway or in the proposed building area, None of the removed trees are considered protected specimens; therefore they could be removed even without the project. In addition, all of the trees immediately along the project perimeter abutting residential properties are preserved, Staff recommends the removed coast live oak (#13) be trarISplanted to another location on the project site, Since the exact positions of the future proposed homes have not been determined, the final replacement trees will be determined by the City Arborist prior to issuance of grading permit, In addition, staff will evaluate the final building footprints during the design review stage to determine if additional trees located at marginal locations could be preserved, even though they are not protected as part of the tentative map, Street safety issue around the existin~ water well and on Greenleaf Dr, The appellants indicate that the noise from the building construction and the additional cars generated from the three new homes would cause neighborhood stress and disturbance, In addition the construction trucks will be parking on Greenleaf Dr, creating traffic congestion, The appellants did not explain the correlation between the possible street safety concerns with the presence of the existing well. Discussion: As mentioned previously, the project is located in a developed residential and office area with a zoning designation that allows for the three proposed homes, The applicant is required to perform the City's best construction management practices prior and during the construction process that will control runoff and dust pollution, Greenleaf terminates near the project site and the amount of automobile trips generated from this project will not have a significant effect on Greenleaf Dr, or on the surround streets, 1-3 TM-20004-05 Page 4 Greenleaf Subdivision March 15, 2005 Considering Factors When reviewing a subdivision proposal, the project is forwarded to all pertinent departmentsl districts for review and comments. The project has been preliminarily reviewed by the following departments/ districts: · Building Department · Fire Department · Public Works Department · Cupertino Sanitary District · Santa Clara Water District · County Health Department ENCLOSURES Exhibit A: Conditions of Approval Exhibit B: Planning Commission Staff Report (wi attachments), January 25, 2005 Exhibit C: Appeal Justification Letter From The Appellants Exhibit D: Neighborhood Petition Exhibit E: Email Correspondence from SCWD Exhibit F: Letter from Cupertino Sanitary District Exhibit G: January 25, 2005 Planning Commission Meeting Draft Minutes Plan Set Prepared by' Gary Chao, Assistant Planner , WbY David W, Knapp City Manager Steve Piasec i Director, Community Development Revised TM-2004-05 CITY OF CUPERTINO 10300 Torre Avenue Cupertino, California 95014 RESOLUTION NO, 6284 OF THE PLANNING COMMISSION OF THE CITY OF CUPERTINO APPROVING A TENTATIVE MAP TO SUBDIVIDE AN APPROXIMATE ,951 ACRE PARCEL INTO FOUR PARCELS RANGING FROM 7,000 TO 8,500 SQUARE FEET, PLUS A REMAINDER LOT OF 11,500 SQUARE FEET, SECTION I: PROTECT DESCRIPTION Application No,: Applicant: Location: TM-2004-05 Wayne Aozasa Greenleaf Drive (APN: 326-33-107) 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 map is 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 and avoidable injure fish and wildlife or their habitat. e) That the designs of the subdivision or the type of improvements associated therewith are not likely to cause serious public health problems, f) That the design of the subdivision and its associated improvements will not conflict with easements acquired by the public at large for access through or use of property within the proposed subdivision, Resolution No. 6284 Page 2 TM-2004-05 January 25, 2005 NOW, THEREFORE, BE IT RESOLVED: That after careful consideration of maps, facts, exhibits, testimony and other evidence submitted in this matter, the application TM-2004-05 for a Tentative Map is hereby approved 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-2004-05, as set forth in the Minutes of Planning Commission Meeting of January 25, 2005, and are incorporated by reference as though fully set forth herein, SECTION III: CONDITIONS ADMINISTERED BY THE COMMUNITY DEVELOPMENT DEPT, 1, APPROVED EXHIBITS Approved is based on the tentative map entitled "Tentative Parcel Map, Greenleaf Drive, Cupertino, CA" by SMP, dated November 29, 2004 except as may be amended by the Conditions contained in this Resolution, 2, PRIVATE ROADWAY & PUBLIC SIDEWALK A homeowners association shall be established with a CC&R that addresses maintenance and upkeep of the private road, sidewalk and streetlights, A five-foot public accesslpedestrian easement shall be placed on all five parcels along the frontages of the private road, The applicant is required to work with staff to design the pedestrian sidewalk to meander around existing trees to the maximum extent possible and provide smooth sidewalk transition with adjoining properties, A supplemental arborist report with specific tree preservation recommendations must be submitted to the City for review and approval prior to finalizing the sidewalkl curb design along Stelling Road and the new private road, The CC&R and the public access easement shall be reviewed and approved by the City and recorded prior to approval of the Final Map, The private road shall be paved with interlocking pavers or similar semi-pervious material. The final paving material shall be reviewed and approved by the Public Works and Planning Department prior to issuance of building permits, 3, WROUGHT IRON FENCE/LANDSCAPING Project requires that the CA Water Service to open up the first 25 feet of lot 5 (where the water pump station is located) and provide landscaping features in this area that will be consistent with the surrounding properties, requiring minimum amount of maintenance and water usage, A decorative wrought iron fence shall enclose the rest of the lot 5, A minimum of 2 feet of landscaping setback shall be provided around the perimeter of the wrought iron fence along the private road, In addition, the CA Water Service is required to clean up their existing pump station site on lot 5 as part of this approval. A revised landscaping plan clearly showing the location of Resolution No. 6284 Page 3 TM-2004-05 January 25,2005 the wrought iron fencing and perimeter landscaping shall reviewed and approved through the Architectural and Site approval process, The landscaping in front of the wrought iron fencing shall adequately screen the site from public view, 5 TREE PRESERVATION The final replacement trees will be determined by the City Arborist prior to issuance of grading permit. In addition, Staff will evaluate the final building footprints during the design review stage to determine if additional trees located at marginal locations could be preserved. Tree number 13 (coast live oak) shall be transplanted to another location on the project site per the City Arborist's recommendation, It should be noted that even though some trees are indicated on the plans to be preserved (7, 56-58, 71), they are non-specimens trees and the future property owners will have the discretion to remove them, All of the other trees shown on the plans to be preserved must be recorded on the CC&R as protected trees for future owners to preserve and maintain, In the event that any protected trees must be removed due to reasons deemed appropriate by the Community Development Director, then comparable diameter replacement tree(s) must be planted at the same location or locations visible to the public, 6, 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, 7, Rl DEVELOPMENT STANDARDS The new homes on located on lots 1- 3 shall adhere to the R1 Ordinance since they are surrounded by R1 zoning districts, 8, RETAINED PARCEL MAINTANANCE The applicant shall record a covenant and deed restriction running with the land obligating the existing and future property owners to maintain the retained water company parcel and fencing from free of debris and graffiti, Additionally, landscape materials and existing retained trees shall be professionally maintained in a healthy condition, The property owner(s) shall retain a property maintenance service at least on a monthly basis to ensure compliance with this covenant, Said covenant and deed restriction shall name the City and the adjacent three homes as third party beneficiaries and shall include some surety or other guarantees subject to the review and approval of the City Attorney, Resolution No. 6284 Page 4 TM-2004-05 January 25,2005 9, ACCESS DRIVE The entrance of the private access drive shall be modified (i.e., shifted 5 feet to the east (towards lot 1) and/or be narrowed to no less than 20 feet in width), The revised street design shall be reviewed and approved by all appropriate City Departments (Planning, Public Works and Fire) prior to recordation of the final map. 10, UTILITY EASEMENTS Written approval from the agencies with easements on the property (including PG&E, PacBell and California Water Company, andlor equivalent agencies) will be required as a condition of approval prior to issuance of building permits, ll,CA WATER SERVICE A letter of clearance for the proposed project shall be obtained from the Ca Water Service prior to recordation of final map to ensure that the proposed homes and roadway will not negatively impact the existing water equipment and underground wells, 12, SANITARY DISTRICT Prior to recordation of the final map, the applicant shall provide written confirmation from the Cupertino Sanitary District that adequate capacity is available for the project and that any of the new sanitary system will not negative impact the existing water equipment and underground wells on the retained water service parcel. 13, PG&E Prior to recordation of the final map, the applicant shall provide written confirmation from the PG&E that any of the new underground utility equipment will not negative impact the existing water equipment and underground wells on the retained water service parcel. SECTION IV: DEPARTMENT CONDITIONS ADMINISTERED BY THE PUBLIC WORKS 1, 14, STREET WIDENING Street widening, improvements and dedications shall be provided in accordance with City Standards and specifications and as required by the City Engineer, The developer must obtain written documentation from the Fire Department on thE final desi~ of the new road section, 15, 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. Resolution No. 6284 Page 5 TM-2004-05 January 25, 2005 16, FIRE HYDRANT Fire hydrants shall be located as required by the City. 17, 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, 18, 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, 19, 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 andlor Regional Water Quality Control Board as appropriate, 20, DRAINAGE Drainage shall be provided to the satisfaction of the City Engineer, Pre and Post- development calculations must be vrovided to indicate whether additional storm water control measures are to be installed, 21, 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. 22, 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: $2,130 minimum b, Grading Permit: c, Development Maintenance Deposit: d, Storm Drainage Fee: e. Power Cost: $ 5% of Off-Site Improvement Cost or $ 5% of Site Improvement Cost $1,000,00 $1,217,61 ** Resolution No. 6284 Page 6 TM-2004-05 January 25, 2005 f, Map Checking Fees: g, Park Fees: $ 6,750,00 $ 47,250,00 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 to pay for one-year power cost for streetlights 23, 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, 24, 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. 25, 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. 26, 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, Resolution No. 6284 Page 7 TM-2004-05 January 25, 2005 CITY ENGINEER'S CERTIFICATE OF ACCEPTANCE OF ENGINEERING/SURVEYING CONDITIONS (Section 66474,18 California Government Code) I hereby certify that the engineering and surveying conditions specified in Section IV of this Resolution conform to generally accepted engineering practices, I sl Ralph Qualls Ralph Qualls, Director of Public Works City Engineer CA License 22046 PASSED AND ADOPTED this 25th day of January 2005, at a Regular Meeting of the Planning Commission of the City of Cupertino by the following roll call vote: AYES: COMMISSIONERS: Giefer, Vice-Chair Miller, Saadati and Chairperson Wong COMMISSIONERS: COMMISSIONERS: Chen COMMISSIONERS: NOES: ABSTAIN: ABSENT: ATTEST: APPROVED: I sl Steve Piasecki Steve Piasecki Director of Community Development I sl Gilbert Wong Gilbert Wong, Chairperson Cupertino Planning Commission EXHIBIT B CITY OF CUPERTINO 10300 Torre Avenue, Cupertino, California 95014 DEPARTMENT OF COMMUNITY DEVELOPMENT REPORT FORM Application: Applicant: Property Owner: Property Location: TM-2004-05 Agenda Date: January 25, 2005 Wayne Aozasa California Water Service Greenleaf Drive (APN: 326-33-107) Application Summary: Tentative Map to subdivide an approximately ,951 acre parcel into four parcels ranging from approximately 7,000 square feet to 8,500 square feet. Plus a remainder lot of 11,500 square feet.* *Please note that there is a slight variation in the proposed parcel size range from the public hearing notice due to some minor revisions to the map made by the applicant after the notices were sent out, Also, the ASA and Use Permit Applications are not being considered as part of this approval. The applicant decided to proceed with the Tentative Map approval first, RECOMMENDATION: Staff recommends that the Planning Commission approve the tentative map, file number TM-2004-05, in accordance with the model resolutions, Project Data: General Plan Designation: Zoning Designation: Acreage (residential): Density: Officel Industrialf Commercialf Residential P(CG, ML, RES 4-10) ,547 5.5 dul gr, acre Project Consistency with: General Plan: Zoning: Yes Yes Environmental Assessment: Categorically Exempt DISCUSSION: Site Analysis The project is located near the terminus of Greenleaf Drive and is surrounded by commercial uses to the east and south and single-family uses to the north and west, Currently the site facilitates the California Water Service's pumping station for the City, The project proposes to retain the pumping station on lot 5 (11,500 square feet) and create three residential parcels (lots 1 - 3) around it with a private ingressl egress street q-// TM-2004-05 Page 2 January 25, 2005 (lot 4) in the middle, The proposed residential lots range from 7,000 to 8,500 square feet in size, which are consistent with the surrounding residential properties, The proposed lots will comply with development standards of the Rl Ordinance, Private Road The project proposes a 28-foot wide private roadway (cul-de-sac) from Greenleaf Drive, A 28-foot private road provides sufficient width for two II-foot travel lanes and a six- foot parking lane on the side of the street, Staff supports the use of a narrower road (the standard width is 36 feet with parking on both sides of the street) to help preserve many of the trees on this site, A monolithic, five-foot sidewalk will be provided along the front yard lot frontages, The sidewalk will continue along lot 5 and tie into the sidewalk on Greenleaf Drive, Both the private road and the sidewalk will be paved with semi-pervious stone pavers or similar interlocking pavers to enhance the storm water quality of the project and to also help preserve the root systems of existing mature trees. The applicant is required to work with staff to design the sidewalk to meander around existing trees to the maximum extent possible at the final map process, A home owners' associationlCovenants, Conditions & Restrictions (CC&R) and a private road maintenance agreement are required to ensure that the individual property owners will properly maintain the roadway, sidewalks and the street lights, California Water Service Remainder Parcel The project requires that the CA Water Service to open up the first 25 feet of lot 5 (where the water pump station is located) and provide landscaping features that will be consistent with the surrounding properties requiring minimum amount of maintenance and water usage, A decorative wrought iron fence shall enclose the rest of the lot 5, Staff is recommending that a landscaping buffer (2 feet minimum) be provided between the wrought iron fence and the sidewalk along the private road to allow for additional landscaping to be planted in between. In addition, the CA Water Service is required to clean up their existing pump station site on lot 5 as part of this approval. A revised landscaping plan clearly showing the location of the wrought iron fencing and perimeter landscaping shall be reviewed during the Architectural and Site approval process, Tree Removal The City's Arborist prepared a tree report on the project site, which identified 74 trees, The project proposes to remove 37 of them that are either located in the proposed roadway or in the proposed building area, None of the removed trees are considered protected specimens; therefore they could be removed even without the project, Staff recommends the removed coast live oak (#13) be transplanted to another location on the project site, Since the exact positions of the future proposed homes have not been determined, the final replacement trees will be determined by the City Arborist prior to c¡ ~I 'J-. TM-2004-05 Page 3 January 25, 2005 issuance of grading permit. In addition, staff will evaluate the final building footprints during the design review stage to determine if additional trees located at marginal locations could be preserved, even though they are not protected as part of the tentative map, It should be noted that even though some trees are indicated on the plans to be preserved (7, 56-58, 71), they are non-specimens trees and the future property owners will have the discretion to remove them, Prepared by: Gary Chao, Assistant Planner ~ Approved by: Steve Piasecki, Director of Community Development~ Enclosures: Model Resolution Preliminary Landscaping Plan Plan Set q-/3 TM-2004-0S CITY OF CUPERTINO 10300 Torre Avenue Cupertino, California 95014 RESOLUTION NO, OF THE PLANNING COMMISSION OF THE CITY OF CUPERTINO RECOMMENDING APPROVAL OF A TENT A TIVE MAP TO SUBDIVIDE AN APPROXIMATE ,951 ACRE PARCEL INTO FOUR PARCElS RANGING FROM 7,000 TO 8,500 SQUARE FEET, SECTION I: PROTECT DESCRIPTION Application No,: Applicant: Location: TM-2004-05 Wayne Aozasa Greenleaf Drive (APN: 326-33-107) 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 map is 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 and avoidable injure fish and wildlife or their habitat. e) That the designs of the subdivision or the type of improvements associated therewith are not likely to cause serious public health problems, f) That the design of the subdivision and its associated improvements will not conflict with easements acquired by the public at large for access through or use of property within the proposed subdivision, I/-!1 Resolution No. Page 2 TM-2004-05 January 25,2005 NOW, THEREFORE, BE IT RESOLVED: That after careful consideration of maps, facts, exhibits, testimony and other evidence submitted in this matter, the application TM-2004-09 for a Tentative Map is hereby approved 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-2004-05, as set forth in the Minutes of Planning Commission Meeting of January 25, 2005, and are incorporated by reference as though fully set forth herein, SECTION III: CONDITIONS ADMINISTERED BY THE COMMUNITY DEVELOPMENT DEPT, 1, APPROVED EXHIBITS Approved is based on the tentative map entitled "Tentative Parcel Map, Greenleaf Drive, Cupertino, CA" by SMP, dated November 29, 2004 except as may be amended by the Conditions contained in this Resolution. 2, PRIV ATE ROADWAY & PUBLIC SIDEWALK A homeowners association shall be established with a CC&R that addresses maintenance and upkeep of the private road, sidewalk and streetlights, A five-foot public accesslpedestrian easement shall be placed on all five parcels along the frontages of the private road, The applicant is required to work with staff to design the pedestrian sidewalk to meander around existing trees to the maximum extent possible and provide smooth sidewalk transition with adjoining properties, A supplemental arborist report with specific tree preservation recommendations must be submitted to the City for review and approval prior to finalizing the sidewalkl curb design along Stelling Road and the new private road, The CC&R and the public access easement shall be reviewed and approved by the City and recorded prior to approval of the Final Map, The private road shall be paved with interlocking pavers or similar semi-pervious material. The final paving material shall be reviewed and approved by the Public Works and Planning Department prior to issuance of building permits, 3, WROUGHT IRON FENCE/LANDSCAPING Project requires that the CA Water Service to open up the first 25 feet of lot 5 (where the water pump station is located) and provide landscaping features in this area that will be consistent with the surrounding properties, requiring minimum amount of maintenance and water usage, A decorative wrought iron fence shall enclose the rest of the lot 5, A minimum of 2 feet of landscaping setback shall be provided around the perimeter of the wrought iron fence along the private road, In addition, the CA Water Service is required to clean up their existing pump station site on lot 5 as part of this approval, A revised landscaping plan clearly showing the location of q~/S Resolution No. Page 3 TM-2004-05 January 25, 2005 the wrought iron fencing and perimeter landscaping shall reviewed and approved through the Architectural and Site approval process. 5 TREE PRESERVATION The final replacement trees will be determined by the City Arborist prior to issuance of grading permit, In addition, Staff will evaluate the final building footprints during the design review stage to determine if additional trees located at marginal locations could be preserved, Tree number 13 (coast live oak) shall be transplanted to another location on the project site per the City Arborist's recommendation, It should be noted that even though some trees are indicated on the plans to be preserved (7, 56-58, 71), they are non-specimens trees and the future property owners will have the discretion to remove them, All of the other trees shown on the plans to be preserved must be recorded on the CC&R as protected trees for future owners to preserve and maintain, In the event that any protected trees must be removed due to reasons deemed appropriate by the Community Development Director, then comparable diameter replacement tree(s) must be planted at the same location or locations visible to the public. 6, 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, 7, R1 DEVELOPMENT STANDARDS The new homes on located on lots 1- 3 shall adhere to the R1 Ordinance since they are surrounded by R1 zoning districts, SECTION IV: DEPARTMENT CONDITIONS ADMINISTERED BY THE PUBLIC WORKS 1, 8, STREET WIDENING Street widening, improvements and dedications shall be provided in accordance with City Standards and specifications and as required by the City Engineer, The dEvelover must obtain written documentation from tfæ Fire Dqmrtment on the final dEsir¡n of tfæ new road section, q ~/(P Resolution No, Page 4 TM-2004-05 Jaouary 25, 2005 -- 9, 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, 10, FIRE HYDRANT Fire hydrants shall be located as required by the City, 11, 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, 12, 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, 13. 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 I or Regional Water Quality Control Board as appropriate, 14, DRAINAGE Drainage shall be provided to the satisfaction of the City Engineer, Pre and Post- develovment calculations must be provided to indicate whether additional stonn water control measures are to be installed, 15, 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, 16, 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: $2,130 minimum $ 5% of Off-Site Improvement Cost or q~17 Resolution No, Page 5 TM-2004-05 January 25, 2005 -- b. Grading Permit: c, Development Maintenance Deposit: d, Storm Drainage Fee: e, Power Cost: f, Map Checking Fees: g, Park Fees: $ 5% of Site Improvement Cost $ 1,000.00 $1,217,61 ** $ 6,750,00 $ 47,250,00 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 to pay for one-year power cost for streetlights 17. 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, 18, 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. 19. 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, 20, 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, Cf -It Resolution No, Page 6 TM-2004-05 January 25,2005 ~----------- ~~ CITY ENGINEER'S CERTIFICATE OF ACCEPTANCE OF ENGINEERING/StJRVEYING CONDITIONS (Section 66474.18 California Government Code) I hereby certify that the engineering and surveying conditions specified in Section IV of this Resolution conform to generally accepted engineering practices, Ralph Qualls, Director of Public Works City Engineer CA License 22046 PASSED AND ADOPTED this 25th day of January 2005, at a Regular Meeting of the Planning Commission of the City of Cupertino by the following roll call vote: AYES: NOES: ABSTAIN: ABSENT: ATTEST: COMMISSIONERS: COMMISSIONERS: COMMISSIONERS: COMMISSIONERS: APPROVED: Steve Piasecki Director of Community Development Taghi Saadati, Chairperson Cupertino Planning Commission q-N 01/27/2005 15: 30 4087773366 EXHIBIT C I. AppUcation No, ~lll Ur v~~~I~NU I.............. __ 2, Applicant(s): Appel1ant(s): name, address, phone number City of Cupertino 10300 Torre Avenue Cuputino, CA 9!5014 (408) 777-3223 fõ) fE (G fE ~ W fE fR) m1 FEB - 1 2005 ~ 3. CUPERTINO CITY CLERK APPEAL Decision of Director of Community Development Decision of Planning Œmmi~,¡jon X' (please check one) 4. Date of determination ofDircctor or mailing of notice of City decision: /-2-.>- oS 5. ^".~ t~~S Basis of appeal: ~~ ~ ~ (\...... I] l).J~ W~ - W ðoK~ W~ ~ +> ~ cfo ~~7:..:J- r; O-A-t-èL ~~h CMAsf..-v. ' ;:)) ~f~ ~+f-.'tv5o-t 37 (l'U2-f2-c;. 3) ÞT'. T~ ~ IH /PULe. ~4.. ?~ +0 . . eM ~~ f)1'. 6, Signature(s) n Please complete form, ÎD.clude appeal fee on ('is- ã.iid mum to the attention of the City Clo:rk. ;!.1'1'C1'\.,I;~pllk 1cmn1.Occ c¡ ~;)D .~ URGENT MESSAGE WATER WELL AND THE POSSIBLE CONTAMINATION OF OUR DRINKING WATER. The citizens of Cupertino would like to notify the public of the existence of water well at the east end of Greenleaf Drive that has been supplying our community with drinking water. This water well is in close proximity to a building site that the California Water Service Company has decided to develop with single family homes. The project is to close to the water well and we feel that the new sewer lines or the possible tampering by individuals/terrorists could put our water supply at risk of contamination. We the citizens of Cupertino have submitted an appeal to the City Cupertino to have this approved decision overturned and the project stopped. The City Planning Department has failed to convey to the public that we have been receiving water from this well and as concerned citizens now feel that this should have been public knowledge to all California Water Service recipients. There are also 74 trees on the property and 37 of them will be subject for removal. These trees have been providing aid to the accumulation of ground water that makes it possible for this well to flourish. We would like the City to make available to us all records for review associated with this property past and present. It is a request of the neighbors who live in this community to ask the City of Cupertino to reconsider and rescind its decision to approve this building project in order to protect the public. Contact Number: (408) -564-4608 Cupertino Citizens Thank you '1~:J.1 Objections and Concerns pertaining to Building Development Application No, TM-2004-05, U-2004-06, ASA-2004-09 APN326-33-107 Applicant: Wayne Aozasa (CA Water Service Location: Greenleaf Dr. Catl1y & Dale Helgerson - Neighbor Address: 20697 Dunbar Drive Residential APM# 326-33-038 Property next to Lot 3 Objections and Concerns are as follows: I) Property is owned by CA Water Service Company and has a water well tl1at provides water to the community which could become contaminated by sewer lines that would be built on the property, The sewer lines could become damaged by trees that would cut into the pipes and leak out to our drinking well water. This property has been owned by tl1e water company for as long as I can remember for I have been a resident at the 20697 Dunbar Drive for 24 years. The water company stated to the realtor that I purchased the property ITom that they would not sell the property for at least 100 years unfortunately that has all changed, I would like to know iftl1ere is or has been a safety issue regarding any possible leaks in the sewer pipes that are next to the well? I have asked the Planning Office to check to see what is in the records and to check with Code Enforcement. There maybe certain requirements as to how close the sewer lines should be ITom the well but even with that there is always a possibility that things could become dangerous to our health. Just because it has never happened before does not mean it never will and with the addition of an extra three homes it could be a possibility, I think it is up to the City of Cupertino to keep tl1e residents of our city safe ITom any contamination that may occur with concern to our water supply, I must ask the question why was this property never sold before? I request that the board be very careful with our water supply and with any proposed building on this property, 2) Lot 5 will remain with tl1e water company and lots 1,2, & 3 are lots planned for two story home development. I feel that these homes will be in close quarters and that tl1e space allowed is not enough. There is also lot 4 that would include a road. q-J~ 3) Trees that are on the property will be cut down and neighboring properties will suffer, for the view will be compromised and beauty of the property destroyed, On lot 3 only 3 trees are saved and there is no security that the new resident will keep these trees, There could be a clause in the Deed of Trust that would protect these trees but this was not mentioned to me by the builder, it was mentioned by the City Planning Department. The beautiful trees are viewed by all properties adjoining the surrounding areas and cutting these trees would diminish all property value and destroy the natural tone of the neighborhood, also lots I, 2 and 4 will be subject to more cutting of trees that will be lost for ever. The panoramic view will be sold and there will be no way to regain our loss. 4) The value and splendor of the property at 20697 Dunbar Drive would greatly diminish due to this building project for my property is right next to lot 3 and lot 3' s backyard is right up against my side yard. The great trees that are on the building property have afforded privacy and beauty to my family and are priceless and the building of these two story homes would destroy all this. The feeling that one experiences when looking ITom my yard to these trees is that of majestic wonder and peace. We can see ourselves in the great outdoors as if we lived in the Santa Cruz Mountains, The friendly birds that make these trees their homes with their songs are a great joy to all. These gifts are ITom God and nature and should be preserved by all for all to see. 5) The noise ITom the building project and the traffic of additional cars and persons in the area would cause my family and other who live near by a great deal of stress and disturbance, While these homes are being built there would be a great deal of dust and dirt generated ITom this building project which would cause my family harm for we suffer ITom allergies to dust and dirt. The trucks that would be used to build these homes would be parked on the street and cause a great deal of traffic congestion on Greenleaf Drive, My neighbor that lives on Greenleaf Drive right next to lot 5 is an elderly man who would be disturbed by the noise and traffic not to mention the dirt and dust. The noise ITom the building of the homes each day would be difficult for all to deal with. I would like to ask the City of Cupertino to propose an alternative measure to preserve this property in some way or to leave it as is for future generations to enjoy, Thank you q,¡;3 City of Cupertino vepartment of COI!Ul1unity DevelopmeJlc 10300 Torre Avenue Cupertino, CA 95014 (408) 777-3308 HELGERSON DALE T AND CATHY L 20697 DUNBAR DR CUPERTINO CA 95014 A,P,N.: 326-33-038 NOTICE OF PúóLIC HEARING NOTICE IS HEREBY GIVEN THAT THE PLANNING COMMISSION OF THE CITY OF CUPERTINO WILL HOLD A PUBLIC HEARING ON THE MATTER DESCRIBED BELOW: Application No, (s) : Applicant: Location: TM-2004-05, U-2004-06, ASA-2004-09 APN: 326-33-107 Wayne Aozasa (CA Water Service) Greenleaf Drive Tentative Map to subdivide a .95-acre parcel into four lots ranging from approximately 6,430 square feet to B,880 square feet, plus a remainder of 11,500 square feet. Use Permit for four, two-story single-family residences in a planned development zoning district. Architectural and Site Approval for four single family, two-story residences in a planned development. ENVIRONMENTAL DETERMINATION: Categorically Exempt, THE MEETING TIME THAT SAID APPLICATION WILL BE HEARD BY THE PLANNING COMMISSION WILL BEGIN AT: 6:45 P,M, ON Tuesday, December 14th, 2004 The time this item will be heard on the agenda can not be predicted. IN THE COUNCIL CHAMBERS OF CITY HALL, 10300 TORRE AVENUE, CUPERTINO, AT WHICH TIME AND PLACE ALL PERSONS INTERESTED THEREIN MAY APPEAR AND BE HE~2D ON SAID MATTER. THE AGENDA F'OR THIS APPLICATION WILL BE AVAILABLE ON THE FRIDAY AFTERNOON PRECEDING THE MEETING, IF YOU CHALLENGE THE ACTION OF THE PLANNING COMMISSION IN COURT, YOU MAY BE LIMITED TO RAISING ONLY THOSE ISSUES YOU OR SOMEONE ELSE RAISED AT THE PUBLIC HEARING DESCRIBED IN THIS NOTICE, OR IN WRITTEN CORRESPONDENCE DELIVERED TO THE CITY OF CUPERTINO AT, OR PRIOR TO, THE PUBLIC HEARING, PLEASE NOTE THAT PLANNING COMMISSION POLICY IS TO ALLOW AN APPLICANT AND GROUPS TO SPEAK FOR 10 MINUTES AND INDIVIDUALS TO SPEAK FOR 3 MINUTES, NOTE: ITEM MAY BE SUBJECT TO CHANGE, IF INTERESTED IN AN ITEM, PLEASE CALL PRIOR TO MEETING DATE TO VERIFY IF APPLICATION IS STILL ON THE AGENDA. NOTE TO OWNERS OF RECORD: Notice to tenants is the responsibility of owners. Steve piasecki Director of Community Development q':lf A Guide For The Private Well Owner ','1-;...'1-,·;' '..:;-..-",-, ,;:,-,,_'1.:, ,,~,,- ,1".._ ......:,J :"':', ,,~' ';..-("'~:I""" -,'_: I ... 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CI.r. ~,"'Eft"'''''''''''''''_~ 1~;;<S A Guide For The Private Well Owner TABLE OF CONTENTS Introduction Well Owner Responsibilities Well Construction and Well Maintenance Water Quality Protection Water Quality Sampling and Treatment Resource Guide t:¡-;2CJ Introduction This pompbJel is intended k> make private well CIW]IOßbip 0 tittle easiet h is designed to: · Alert pivak: wen owners to the potential for .......nhrrnm:ûÎnn and the need fel' water- qua!ilytes1iDg; · InIrodoce well owners to Ihe basics of prop« well conslnlC!ioo, destmction and mainloJlall<e: · Infoøn wdl OWDCIS of their æsponsibiliti<s in Santa Clam Coonty, Nearly baIf of ell water used in Santa C1am County comes from below !he velley Door, when: layen of sand and graftl provide 0 natmaI storage basin for _ in undeIgroond aquifetS. In _ to being an ",tramdinary storaF faålity, the groan<\waIcr basin also ...... .. an iDe>peosive and eßicienlIl<almeDt and dislributioo system: .. - pen:o..... down, it is natutaIly purified and spæads out fŒ miles to serve a wide axca. The tbousands of water supply wells \bat dtaw wator from !he county's groundwater bosins have \J1Iditionally produœd ""'Y high qua1ity drinkiøg WIlIer. In =1 yeæs, howe-. om drinkiøg w_ aquifers have been tbteateoed by toxic chemicals from industrial spiUs, leaking UDCIayoand sI1JnIe tanks. and agriculbtrll oppIicati..... .. well.. biological pathogens from _, stpIic: SJStoDlS and aDima1 &ciIitHs.. 1bese ........tgmin~ntor. can find !heir way Ihrough !he natmaI pro<a:tive layen of clay and sl1l and into our drinking - aquifetS. This problem can be exaspemled by !he pœseoœ of improperly coos\tUCfIed wells, abandooed wells, or wells locatcd too near o potential cœtaminanl soma: lite . septic system. Tbcse wells can act as YCrtical pathways. allowing l''-nir.:lh: and pat:OOgeDS on lite surfaœ or in sbaIIow aquif..... to mig¡ate into 0lIl' deep drinking waIer aquifers. To help cootrol and pevent the conhunimdinn of 0lIl' groondwaIer sk>mge basins and to proIeCI public bea1tb, we need !he _lion of private wdl owners. We have prodnced litis pampl>let k> help you help ns ¡rot<:cl 0lIl' grounciwaIer n:_ and yOIII' health. This pompblct is ...... only .. . gnide foc well owners, We do DOl claim \bat the r-"tvn......A!ltirm'5 made in Ibis doc'IIIDCDt will WŒk. in every situation. Nor do we claim to have coven:d every possible scenario or contaminanL AIJy reference to trade names and companies does not cœstilDte an endorsement Q'J.7 Well Owner Responsibilities To protect public bea1th aøllo maintain !be high quali1y of_ in DIll' drinking_ aquifers, well owners are ¡equired 10 adhere 10 various state and local laws telaling 10 weDs. In genom!, well "'"""'" are ¡equired to: · Obtain pcmúts. from !be Santa Clam Valley Water District (District), bet... any well conslnx:1ioo, destnJcticm, or modificatiœ, · Complete any well constrodion. deslnx:lion, or mo-tiji~tion according to District and State Well StandmIs, WeDs mllSt be conslnx:led '" that they do oot aI10w poor quality sudàce water Œ water from sbaUow aquifen 10 migrate into drinking waIcr aquifen, Thote ate speciJic wen ccmtmction pnctices that must be follow.d 10 ....... that wen. ate OOJJStmctcd propedy, NoII1:øIllHllcø-'_"'''' 1IIt1tIift<ttII_._hCØflll/olø4 by ø C-57/ù:erued__ · Register all wells with !be Disuicl. · Obtain water sy_ cleanmce from !be Santa Clam County Department of EnvironmenIa1 Health bet... a well is used for drinking -JIUIPOS"S' · Properly maintain the well so that it remains in compliance with !be District aøI Stale ~n StandmIs, Wells must be maintained '" that they do DOl allow !be _00 of._ ....... or other mareriaIs inlo tbem through impropctIy seak:d well casings or gmvel fiII/!OuDding mbeL WeDs most be secIlICd so that dWdœn or animals canDOt enter them. · Ftle W_ Production StaIetDeDIS ID œport 10 !be Dis1rict !be amount of waIcr that was produced from !be well. if !be wen is IocaIed within ODe of !be Dis1rict Board defined GrouDd_ CIwge ZDnes. · Properly destroy any weDs that are nol being used. Wbcn 00 looger in nse, weDs must be destroyed '" that they can DOYCf act as vertical cooduiIs Œ endanger pnblic bea1th. GeocmIly, weDs must be oompIctdy filIcd with impavious sealing mnreriaJs, For moo: infoImaIion 00 your n:sponsibi1itie. as a well owner. contact the District's Wells and Water Production Unital (4œ)265-2607. extension 2660 or visit the Disttict's web site aI hup:/{www.lx:ynœh.oom. q ,;;.-e Well Construction and Well Maintenance WElL CONSTRUCTION The typical domestic well in Santa Clara County is ~ by drilling a hole in tile ground to a depth of 100 to 300 feet,'" the well drillcr is drilling tile bole, be/sbe DOleS tile type and depth of materials Ibot the bit passes througb. This iDformatioo is recorded 00 tile Driller LotI Ibot is submitted to the pennitting agency and given to the homeown<r. The well is oons\l1lCted once the driller finds laY"" of sand Œ g¡avellbot produce enough water to meet the: well O'OVfð"S needs. These wan:r producing laY"" an: called aquif..... To consttuCI tile well, the drillcr installs a length of plasrlc Œ steel pipe called the well casiDg into tile hole, The well casing lœeps the bole from collapsing and allows pumping eqoipment to be instal\ed. By regularlon, the well casing must have a diameter at least four-inches smaller !ban tile eliame.... of the hole. Where the bole ÌDII:nieCIS the best water producing laY"" (the sand and gravel aquifetS), the drillcr installs well casing wid! dún cots or pert'oraIiooS. This pŒlioo of the well is called the well screeD. Tbc well saeen allows water to pass into the casing but keeps rot sand and gravel. Where the hole ÌDII:nieCIS laY"" of clay Œ fine silt (laY"" !bat doo't typically produce significant quantirlcs of wan:r), the drilla installs UJ>jJCIfŒ1lted pipe called bIaDk casiDg, To keep fine sand, sil~ and clay from entering the well screen. the drillcr installs a sand and g¡aveI mix called tile filter pack into the space between the casing and the bole, To protect the water qual\1y in !be deeper, drinking wa.... aquitetS from JOŒ quality sutface wa.... and shallow aquifa wan:r, the driller also installs a concrete Œ cement seal (aunular or sanitary seal) between tile blank casing and the hole, In Santa Clara County, the minimlDD annular seal depth is 50 feet. The Santa Clara Valley Wa.... District (Dislrict) will requite a deeper annular seal if the well is to be installed in the valley Boor (vs, moontainous regions) and may also requite !bat specific clay layers be scaled off. 'JYpical well seal dcpIbs an: 150 feet in tile north county and 100 feet in the 8Oud! county. The annular seal extends to tile surface of the ground where it is extended oot to create a cooae1C pad wid! the well casing extending out of the middle _of it T'bcse surface features are called the weIIIteod. At tile welIbead, the casing exœnds at leaat one foot aIxm: the ground sutface and is securely capped to pte'CDI anytbing, including surface wan:r, from entering tile well, The cooae1C pad is sloped away from the casing to prolect !be well from damage and from surface wa.... contamination. Cf--éJC¡ WELl MAINTENANCE A poorly m'""""""-d wen can lead to a wriety of problems iDcIuding poo< water qoafuy and reductioos in !be _ of water yoor wen can produce, To minimize: tbese pœn1ial problems, a well m.int..n!l1lN'; program is an impcxtant pari of a wen owner's æsponsibiJities. Insped Your Wellhead Get in !be habit of. doing a visual cIIed< 00 yoor well at least once a year. More often is bcuc:r. See below for some of !be things to loot for. ~, ,.....,\J:...,.,;¿.-4.~:.. _ ~~ > ;,;;,Cfy- ..... ,~- ,; >:ø~ ~{'~-i-:;";;£~»'~': ~ SLOPE '-' ~:",N CRACK 01' GAP . "\ 1;" I' , ".:¡' \~ Ih ~ ' ,.' ~.......~ pf~....._~ ~t:;;v' , ...'/ ~,li)~ ,~,/Y',ø . .--::::~.;< . ~::Y'<..&¡,)':- '.~~' :,,";<6 'C"'o~ ::-jl""'':':t l.ook hr QP8f1:~ÇF thot ¡ns8ct~ ~8:::knb, ·...¡atel·, or anything do:e ":0,-' entcr, Ccp, ~cd, Dr oth8rw :.0 plug !hcm .~ · e Maiutain Complete WeD Records Effecti\'e mMntÞ.n!l1V'P. programs begin with compiele n:cŒds 00 tbc coosttuctioo, lesting, and rnaÎII10IIaIICe of yoor well Yoo should wotI: with yoor Waœr Well and/or Pump Contnctor to establish inspection and routine maintpn:AlnN'; scbeduI<s based 00 !be specific cbaracteristics of yoor wen and water supply needs, Complete wen n:cŒds should include: a Tbe DriII<o' Lag: The document desaibing !be coosttuctioo of. !be weII-bow deep it is, what depth it draws water ftom (!be perforated intmal~ and !be soil types encoutllcred while drilling. -,~~- 1"~!C7 -~~k.:. ·,,1..,';\4{- '._~. "- Look ¡or cracks in the concrete pad ¡hot would oilow water, and any contaminonts it 1110Y be carrying, 10 follow the weìí ..::asing dO'Nn ir,to you; drinking ,water aquifer. Sea! crocks, Of ,e-pour a new concrete pad Ð if \vaier is Ik:wing Qui the top of the wel!, call a licensed we!lconiractor to stop the flow. in udJiti0n :0 being c '....'cste of '.'Ide;", if water con leak out, çontcminanls can seep in ø Rem,~'v,; weed,;, leo'le~_ and other debris from around your well These con creot,,;, great horr.e) for rodents end ,]ther pe</$ Remember, do not 'Ise herbicides or any other chernicd nem the weil · Make sure the ground "lopes cwcy ifOn: \lour we:i::.md that YC'J, vlei! CO<:::>9 e, tends ,:,f le'],,-,: c,ne tC/1~ 'Jb':-:'l€" 'ile en:>ure thot surfcKe wojer Joes rod coile<:1 O( flow near the we!! '^ · iv\{]Ke ~lIre your wed re0i~trtltion n,:mber is ~ti)l v;~ib:", on yOI'1 weti ¡his is (I Irxol ieq(]! re'lullf'rneni Coii the Distrio;¡ yuu koed a :18W, [U;'8 r~gistta~ion tag at 408-25&2607 exte:1S:0n 2660 :f YQû ha-.e on inactiv¿ welt, lum ~he pump on ~e.erai times during rho:; YCG( tc j~K.ke 5iH0 th,:¡t ever,,:h¡nç¡ i5 i0lK;ioninq pre-per!y Inspect and mo¡n~Gin your inoctl"Je 'Ne!! fo!lowing the same gu:clei:nes (15 for /OUf ,active 'Net! if you nE''1E.'f pion to ,,;se the we!1 ()gUII), you lire ieguity requlled 10 properly Je~troy II. ?lupel1y J.,~llr)YIll8 Ihe well wdi ~)r8v"flí :I ír(J11l belf18 011 ucuJenjol µ.J~hwcr1 (C.f ll;,ìtominal'ol1 into active 'Ne!l, ïO'J!' neighS;::,!', v,ell, or thE:: gie,,-'nJwutei (:',j()T: )JI I,;](),',!;' ',,/,!':,':, ,,'¡e,::qL'ued · ~" i-,p ');>,-""'t""J (F ,rr;'7cJ!w ',,'-jf'!I, ',~f" C:'-'5~r.c' ,i q~3D This is important information to help trouble- &boot problem&. &bou1d !hey arise, The drilling cootractc< should provide you wilh a copy of the Driller Log following completion of the weIlcoostrUCtiooandltSbng. · Pump Test Data: The pump ItS! give& information on bow much ~ the well can produce, Tbi& information is also useful to ...... well perfOl1tJ8llC< as the well ages, · _lMdioD Map: Draw a map showing the location of all the buried ~ pipes c:oonected to the well. If you """'" a well with adjaœDt propertie&. it is a good idea ID 1m<: a map of all the plumbing on your ncighlxn' propertY as wen. 1bis infonnation can be iøw1uable as the propcnie& change hand& and repain need to be made, or as new wells lIe added. · 'J'he PIIysiad Lo<adoo olllle Well: Measurt: the distance ID the well from permanent st:mctU1'C8 (e.g. the centerline of the road or corner of the house), · MaIo_ Records: Record wbeocvc:r you have any UI.ñntl"n!U'<:r. done, such as replacing the pump or check val..., Tbi& is important information ID keep !tad<:ofbowoldthevariOU&~¡JOD<IlISare and who repaired them WL · Woter QuoIIty DIIIa: Keep all your past water quality te&ting information in one pW:c, By comparing rrsults from one year to the next you will be better able ID detect changes which may indicab: problems, · _edioolli&tory: If you disinfect your well, keep !tad<: of when, wby and bow it was done, DeterIoraIlDg Well Performanœ The performanœ of all wells will deteriorate over lime, I>It proper weIlcoostrUCtioo and maintenance can delay this problem. The !)pical cau&e& of perfmnance deterioration include: _ eucru&tation or binfou1ing (bacteriological eucru&tation) of the well scn:en, physical plugging of the well &m:eII, fiJter pack, and surrounding &Oils by fine panicle&, corrosion of the well casing, and pump problems, Many of these problems can be pevcnted by proper well design and COD&ttuCtion. proper pump sizing. proper operation and maintenance, or preventative well maintenance, If not allowed ID progIO&& too far, most well perfannance problems can be 00II0Cted. To pevcnt or cor=! performanœ problem&, you should work with your Water Well and/or Pmnp Contradm, Well Destrudioo Any well that is no longer being used for its intended purpose is required by law ID be properly des1royed. Becaose 1IDU&ed, .ba~ wells can act as padtways that allow poor quality &U!face ~ or shallow groondwater ID move into deeper drinking ~ aquifm, it is very important that !hey are properly des1royed. Tbi& is c:speciaIIy .... if other ~ supply wells are operating in Ibc area. Wben a well is being used in the vicinity of an abandoned well, the pumping activity in the operating well can actually p.1ll poor quality water down the abandoned well, inlD the drinking water aquifers, and then into the operating well. To e_ these vertical pathways for contaminant migr.¡tion, abandoned wells must be de&troyed by filling the entire well casing with cement ba&c:d scaling materials. As with all well COOSItUCIÍOÐ, modification, or destruction, any well destruction wade must be cooq>leted by a C-57liœo&ed contractor and undec permit from the Santa Clara Valley Water District (District). C¡~31 Water Quality Protection WIly Slwuld 1 PrøúeI The Grornulwatn? Po< mooI well owners. groundwater is 1bcir ooly source of waI« and shoold. !herefore. be proœcred. Groundwatu moves very slowly. often only a fow feet per year. and becaosc it moves so slowly. ooce it becomes polluted, it takes yeus for it to be naturally flushed clean. Manually cleaniDg poIlU1aOts out of groundwater can Ix: exn=dy cooúy and difficult Often. !be only soIutioo is to find a new somce of water. WIwt Co 1 Do To PrøúeI The Qwz/ity Of My Wotu? Always keep in mind 1bat yoo \ive on top of yoor drinking waI«, The Iay<:r of eanb between yoo and !be w_ provides some prot<ctiœ from cootaminaIioo. but it is not perfect..The safest way to proII:CI yoor waI« supply is to teach your family. friends and neighbors: If'You /JoJJ~ WØIIt 10 DrinIc l~ /JoJJ't Put It On or In TIte Ground! ~ .".",...;!O=~ "-~~- Well Setback Dislances ~~~.. ".' ',,'....:.. i;: Cræte A Zone Of Protection Aroond Your WeD Your well is a direct coonectioo between you and your waI« supply, Cœtaminants can flow down yoar well as easily as water flaws up it. The farther away from your well yoo .... !be more sand, gn¡vcl and clay !here is to filter out cœuminanIs before !bey reach your waI« supply, So aeaIe a circle at least 50 feet in diameter around your well where you doo't store. mix, spray. spill. bury or dmnp anything that you doo't want to drink, Don't forget to look: out for your neigbbŒ's well if it is near your property line. Any contaminaôon in your neighbor', well can ttaVcl into your well. Some activities legally requiIO more ÚW1 a 5().foot zœe of protection. Po< example. septic WIks, leach fields, and aninJal cnclosmc, need to be at least lOll feel away from any well to ensun:: that no waslC pn:KI1Ets reach your drinking waI«. Tbcre... many activities mat do not have fonnal.legal setback requirements, Use yoor commœ sense, Po< examp1e. doo't lie your dog or goat to !be well ~ ooly do yoo risk breaking !be casing. piping or electtical c:omcctions, you risk contamination from urine and feces. ii~TI~]~tÆ~<~~> /,'{,H' LOW IMPACT ACTMI1ES · Recreational Area -H""", · Organic Gardening · landscoping (no chemical usage) - Child Play Anoa · Patio Furniture MEDIUM IMPACT ACTMI1ES · Swimming PooIlno ~ chemical storage) · Garage · Boot/Vehide Storage (if no leakage) · Sewer Unss* HIGH IMPACT ACTMI1ES · Septic Systems· · Animal Endosures· · Iv\anure/Compost piles · Chemicallfuel Storage · Machinery Maintenance · Auto Repair ...........,...,......... c¡ ~3;). Maintain Yoor Septic System A septic system coosUts of a tank and a 1eacb or drain field. All the soIidlliquid waste from inside the home ß"", into the septic tank, The: septic tank is """I"""" of two .......... tmeDIS, The: waste is deposited in the fiIst """'....tmcDt wI1crc the solids settle to the boUom and the liquid and scum float above it. Bacteria and other miaoorgaoisms ImIk -.. the solid ß1IIIZ:ria), It> the liquid sc:paraI<S from the solids. it overflows into the second I,;UlI.tpaI b1ìC01 where IIKR separation and decom¡>o6itioo occur before it flows into the 1each/drain field. The: 1each/drain ficld is a ..- of perforated pipes within alJel]Cb of washed drain rock Imied about two to three feet dæp, The: liquid waste fI"", OÐI of the ': ~;~1:~ ~~:~1'~":5-~{ ~ 7~:':'~'~:;55jt~" -. ,... . - "'... '" _. ..., ....'-........,' -' ...... -.,... .: "I _' !.. I .........F1OA11NGèri......' I ";1 I ~'P -- \......... ,:.,.-..\......._~~~-.\........ .. '- .. -,.,.... .. '- ., ;-'¡.':-.t. '-. . ...... " ,-, ~ ~ \ .. 1-IhlìID"",c:~" .. -- ~- ,.... .::.....~ ~ -.. - ,..... I' ~ . " '. ..' I';. ', " .. I 1"/ ';.". " SOlIDS LAYER SEPTIC TANK perfonted pipe and into the soil wI1crc more poIlUla111S are removed. By the time the waste- __ the~. few impurities should n:main. If you ba", a septic system. keep in mind thai wbale'll:r goes -.. the drain may find ilS way into your drinking _, The: required l()(l.foot _ between your well and your septic system povides relatively good proœctioo against bacteria and viroses when it is working ¡ropedy, Howew:r. Ibis sctbadt was - designed to protect against things like pbot<>- gtaphic processing cbenrica1s. bazardoos art supplies. bazardoos bouseboId cIeaD<Is, poin' and paint cIeaD<Is. auIOO1OÓ'Ie was.... pesticides, and other hazaJdoos chemicals that 1-33 may _ break down and filter out as easily, See below fŒ some of !be things to look r<r, Jnsped Your WeIIbead On A Regular Basis It is very impotIaDt to kœp any rœ:ign materia1s, including SUtfaa: water, out or your well. Therefore. it is impŒ1aDt that your well is fJoe from openings and that your c:oo=te well pod is suuctmaIIy souod. Your well should be inspcct<:d amwaIIy to be son: that tbeto an: 00 openings in !be weJ\hoad <r cradcs in !be well pad. Any openings <r aacks sbooId be secured <r scaled. Refer to !be WdI CoostnJCtioo and Well )A'MftbOnQ_ section titled '1nspect Your WeIIbcad" f<r mŒC infonnalioo on row to complete an inspection. Protect The Well Structure Many well tepOiIs can be very cosúy, so it pays to BoIC<t your well from any physical damage, I, 'lbc safest way to BoIC<t your well from being damaged <r lost is to buÜd a smaJl structure or fence around it Keep in mind that you will uecd easy access to !be well r<r IIIaÍD1<DaOCe and tepOiIs, If you doo't haw: a stnICtDIe arouud your well, thcu clearly mati< it so wbeu !be weeds grow up in me spring. it doesn't become lDried and lost. 2. Luck !be well euclcsure to miuìmiz¡: !be cbance of vanda\ism. .' r ~,' I,,<;,~~~~'" '.~...', '.",,~:' Septic Tank Maintenance ' 'e" . ~;'..'''~']~"" ,·I;;ï''''''>_(J~l: l1ii~l¡)1~f~~':j'~~i::æ,:' o Do not dump hazardous chemicals down the drain. If your drain is plugged try using boiling water or 0 drain snoke instead of chemical drain cleaners. Use less toxic cleaning supplies whenever possible. Take all hazardous chemicals to a hazardous waste drop-off for disposal. See the Resource Guide sedion În this guide for drop-off locations. . AVY .uSES ... e e ø ø . e FIELD If you notice 0 sewoge smell, a continuously wet orea in your yard, lush vegetation around the septic tonk or leach field, or liquid wmte backing up through your drains, rilen something is not working properly. Call a Ikensed septic tonk inspector immediately. Have your septic tank inspected and pumped every three to five years {more often if you have a garbage disposal]. If the solid waste in the lonk builds up too high, it can flow into the leach lines, plug them and cause your system 10 fail. Keep the solids in your system to a minimum. Do not use your toilet as a garbage can. Food wastes, feminine hygiene products and other household solids are belter placed in the garbage. Do not park or drive heavy equipment over your leach lines. This may compact the soil around the lines and prevent adequate percolation of the liquid waste, causing your system to foil. Do not plant trees near your leach line. Tree roots aften seek out the moist environment inside your leach lines and plug them, causing your system to fail. If you have 0 dual leach field system, change the diversion valve setting once 0 year Do not use septic tank additives, yeast,.bacteria, enzymes, or other products to enhance the system. None of these products have been proven to be beneficial and some con couse permanent damage. '1 ~3tf Water Quality Sampling and Treatment AJ¡ waif< II1M:Is over the surface of the bod or Ibrougb the ground. it dissolves namnlIy 0CC1II1ing mincr>Is and caD pick up substances resulting from the pœsence of anima1s and human actMty, Contaminants dlat may be pæsent include: · Miaobial .,......,...mnM1fIil. such as vimses and bacteria. ohat may come from sewage tt<almCDt planlS. septic sys...... agricultural iivestock q>cratioos, and wiId!ifc. · Inorganic COIII3JI1Ì1WII8 such as salts and metals, ohat caD be oatun1Ily-occuøing 0< result from _ _tIUlOIf, induatrial 0< domes1ic -- discbarges. anima1 facility was.. genetation, miuing, 0< fimning. · Pesticides and betbicides, ohat may come from a variety of S<JIII'C<S such as agriculture. urban stormWatCr nmoff. and residential uses. · OrgaDic cbemicaI _Is, including syntbe1ic and wIa1iIe organic cbemicals, ohat are by-products of indusIria1 processes and petroleum producrion, and caD also come from gas stations, urban stormwater' runoff, agricultural application, and septic sys1elDS, . Radioactive conmni1'lSl~ that in 001' area arc typically oatun1Ily OCC1II1ing, Drinking waIf<, includiug boDIed water, may reasonably be cxpccted ID cootain small _IS of some cootaminants, '!be preseuce of C()l'lhlminant!1. docs not necessarily indicate that the waif< pooes a beal1h risk. Men: infonnatioo about contaminanIs and porentiaI beal1h elfCClS can be obcaioed by calliog the USEPA's Safe Drinking Water Hotline (1-800-4264791), Some people may be more w1ncrable ID _IS in drinking w_!ban the general popo1atioo, lnununo-compromised persons such as persons wi1h cancel' uudergoing .b...uutberupy, persons who bave wuIeIgooe _ ttæISpIants. people with mvlAIDS 0< other immune syst= disorders, some elderly, and infaoIs, can be particu1arly at risk from inf_, These people shou1d seek advice from their beal1h care providers aboot their drinking waif< supply, '!be most common groundwater cootaminaulS current1y of coocem in Santa Clara Couuty are _ and uittate, Bacteriological qoaIity of drinking waif< is deu:nuiued by analyzing fo< coliform baderiL These bacteria occur namnlIy in the intestinal trac1s of humans and auimaJs and in soil, A11hougb coliform bacteria oonnally do not cawe illness, Ibey shoold not be proseot in drinking waIf<, '!be presence of these _ in the drinking waif< indicates ohat the water may be cootan1ioated wi1h other organisms ohat caD cause disease, Disease symptoms may typically include diartbea. cramps. nausea, and any associated beadacbes and fatigue, Bacteria Ieve1s caD fluctnate seasona1Iy with wet and my periods. N"1Inde is a oatun1Ily 0CC1II1ing compowul, but higb amounlS of uitra.. in grouodwater are typically due ID human actMty such as fertili= applications, septic systems. and animal enclosures. N11rate in drinking water at lC'Cls above 45 milligrams per liter (mg/L) NO, 0< 10 mg/L NÜ:3-N is a beal1h risk fo< infants of less than six mon1hs of age. pregnant women and people wi1h certain specific enzyme deficiencies. Nitrate coocentratioos ii1 ground. wafer may rise quickly fo< short periods of time hecawe of rainfall 0< agricultural actMty, If you are caring fer an infant or are pregnant. yoo shoo1d seek advice about your drinking waif< from your beallh care provider, '(--35 NiII'aIe SodrIcGI· ConducIanco (EC MINERÀ1S . Alumi...m AI} ~ All, Bárlúm(Bo) Cadmium (edt. Chraìnium (C~ Fluoride IFJ 1ron(Fe 1-' IPbI Mango_ MIll Ma<atry Hg) Selenium (Se Silwr IAeI WATER QUAUTY SAMPUNG WIIøt Should 1 Test My Wato For? There are dazens of tests that can be performed on drinking water and DO one analysis can assure that your water is "safe to drink:' We haw: tried to compile tile most canmouIy pcñooncd - and tbcir rccommcndcd I<S1ÍI1g ñcqucncics below, This fable should be used for gmcral guidance only, Since coIifonn bacteria and nitraf< arc tile most ccmmooly found cootaminants of cona:m in this area, we IÇII ~... .I1V'M testing for tbcm most frcquendy. EJcctrical conductivity (F..C) is a measure of aD tile dissoIw:d iOllS in your water, By i1sclf, EC docs not 1clI you Ü your water is safe to drink. _. sioœ tile electrical conducIivity .... is tile cheapest and easiest, it can be used as an indicaIor of cbanging conditiOllS that may require fmtbcr testing, The minerals - are 1ç(............ndHI in order to establish a baseline understanding ofa water quality in your well and as a rr--hlllnian to indicaIC water quality changes. ,,45 mg/I N03 01':"",:,.",,'<' " " 10 mg/I. N03-N :i: 1600 j¡..hO.¡an CO'sil!ilicanlly difIonnIlrom >IWYÍOUI year 11ISU~ .............. Ewoy5-10yocn. . c' '........... CO' ", ., .,.. $2SO,;,300 HC changes signilkanlty. . Individual CO':. $20-30 f _, cdor; cdar CO' surrounding land uso change AI ,,0.2 . mg/I As ~ 0.05 mg/I Ba ~ 1.0 mg/I Cd ~ 0..005 mg/I Cr ~ 0..05' mg/I F H..O· mg/I Fe ,,0,3 mg/I Pb ~ 0.015 mg/I M> ~O,OS mg/I Hg ,,0.002 mg/I So ,,0.05 mg/I Ag ~0.1 mg/I '>:__;_'''_'_'''/'i.--.:.,.-,:c,,>,:-,;-;',,:.,j':,,',:,'<:' U-,.... Ínaywœt IÌJ......... aile ..._oflhe~~ ,A"..s:; '=~:~~~~'f~" .. ..:::i¥~,£.·" ..... distiIaIian,chlórinolioO, o~'or . .. ulliaYiclot rad¡_, èonsoAto_ _ prøIè,,¡onaI Ior..- Ød.ice. iNIoN 0""'- syøo; or And on øhomøIe _ supply, ReYene oòmosï" distiloliOll, or ØllÎOII oxchønge, wiI __..... 01 !he nilrølo. Consult 0 =eølmeo./"'¡""¡onaI~ ,,"". r_:,,',. ,Y '".,", Iucroøso lesting Jr.¡ueucy . Q;nd~n:.Iher..i.tïn¡¡,sÙch øin¡~uiW : ondIor iui....,!s1D deIormino tho cøuso rJ the high EC, or the c:bøu¡¡ot In EC: Cømpøno ID ' . nosvIIs . .' P-""'" .' .... . . ·1.... 0 _ systom or~nd on o~ _ sùppIy. 1hoøpfn>piølo _ systom is dopondent 011 your . owroII_ chOm;stry and what ØOIISIiIuoÌ1ls you wauIcIliI<e 10 ........, Cor1suIt 0 _ _ p<oIossional lor moro ocI.ice. Õ!': is greater ltIan Of equal to mg¡1 is milligrams per lifer. 1 mg/I_l part per million 1PPm1. 1 mg/I- 1000 microgram per hfef (µe/l). 1 µg!I- 1 part per billion (ppb) M«cuiy $30 -.w q - 5(P Whøt Do 1 T.st Por Whm My Wøùr HIlS Splcijü; Taste, OdD" Or AJ1P'fI'Ø1I<' ProblimJS? Below is a guide for some poIeDIial problems in drinking wale< and substmœS you can .... for (in bold), Not all of 1he problems and poosible causes pœe s beallh risk to 1he coosumcr. Problem possible Couse Health Risk Cctegory* _~.", ':"_' '-,':_, :...__::....'. .:.__.:....::.,::.__. " ..:.... :'::',,: : '.. _'0- ,', ,_".:<_.:.: - :, :: W<iIer II ara"9" ",reddish brown. PoraIom ftxlUrel'" laundry _ slalned brown... block 'Ibis rrray be duo 10 high '-Is rl iran IF.k 'Ibis 1I.....""ò"ly 0 ..... J high .....ogœ- (Mn) and/... iran (fe '-Is. ".. Iitk os 50 par1S per billion fppb) ma_ one! 300 ppb iran am """" oIoining. High '-Is J adcIo... (e.;. and _ (Mnl can cause hard _, which Joov. spoIs. Hardness can also be ~ diredly. Blue -Of blue dep.....rrray beD 10 higIi '-Is rl coppOr CuI, ..pociólly _ coupled with ....ì__: W~.lIIIIII1sblce__: Thi."'....liIceIy""'~byh,,¡. ~ I"sWfidelHíSì·· .. .,.,__"..",'y,,,"""'_"""""'-"'_'" .,.,._,.......,.......'..,...,._,.,..i,. ..·,;,·1'-'...'·-·.·- ....., ....,,': w"ioohoòterllcorrodlng ...... Waíio';;¡;'iiO':"JOší¥è",.Çcif';';'~'.\tdei· '. . thØlls"!I'Y';""";"can~ínelœpíposone!-· .... ....~~¡!~?~'d-~~.1.~' s.",."ded ....liculales;~...d di;"d¡ý.;;.;. iurbidiIy, can<XlUl8!he _Io~ ~ bdhy... a>Iored, ~ and/or_- rrrayalso be !he culprit. ~~:6::~~'=;=1eacI =~..:ï::=~=~leod pipes, fillings. one! ~ joinls, '.. Thi. rrray be.ì.;. Ìo meIhyI hoÍlb ¡butyl...... (M1IE) WIIile spoil on the dishes or whills __station around 1ixIv... 'Nœ.llblue .. ,....., i,', W(IIer appean daudy. IraIIiy or calored W(IIer has a turpenllne odor 'Nœ. has a chemical smelor_ <:'.'...-:..:.:.......:. :,:'.,....:.:.'..::.,... ..,"..,.... .'. 'Ibis níay be due 10 >OIaIiIe of _iYaIaIiIe organic ............iVOCsI... pesIiádet. o o o it':.. b ,,'~ g An You Conurned T/u1lA N.arl1,Ac1ivi/J May B. C01I/mJÚnoting YOlIT W.D? Here ale some land uses and possible contaminants to test for. Land Use possIble Contaminants Health Risk Category* ':'" ": ...:__.,. '..,....:... '..' "::<'." :.:::'" .:"..__,:;:..::/,>:·--,,'.:.)'..,,:>:..-··}.Jfi·):·'./:';..,':.--,.{.,..,.,-"":,,,,<:,,,,;,,:,,:,,,..,...,:-..,..,.,:<,.,.-....;."..--:-.;.':,:.,'.':......,.: iand/lU, induslry, or dry cleaning operation Coi1sIder 1osIi~ far..latifê organic ~ (VDCsI, pit, IaIaI diøaMd $oIids (IDS}, chloride dI,...... ¡SO,I, and meIaIs.'. . . . .. . .. ." ., .. .. ...... Agricultural croþ production Consõdon'IosJine lOr >esticidts caminonIY ....í ~... well (consu~!he ~ ofDopa~ J Agricullure far alia¡, .ibaIoltfOs), pH, and IaIaI dissoIwdsalids (IDS}.' . Consõdon'lesIing far~, nitratelN03l, one! IaIaI dissaIwoctsalids (ID5, Consider 1os1fng far IaIaI petroleum hydracarbans (IPHg), IaIaI ail and __ITOGI, benzene, tah.W, ....,u......... xyIenes B1EX, MM, eIhyIene dil>ronùde (EDB). ~ enclosure, manure; ".. campos! storage area Gal station ".. oulomabi" repair .hop *0 No known health risk at commonly found COI.......tI...IÎòlLS :;,) Some of the pouible causes con have a detrimental effect on health 8WIfI jf present in low' conœntraticm g. r-31 WATER QUAUTY TREATMENT W/uJt If M, Total Colif- Test Resu1ls An Posili...? Step 1, First, tty to deb:nnine where !be coo_on came from, 'Jbc table below lists some possitic ¡:woblems and some It:ll··no wondPñ correc:ûve actions. Some problems you may be able to fix yourself, while otbeIs, DJaJt£d by an asterisk (oJ, legally æquire !be assistance of a C-57 licensed well coo_, Foc a list of C-57licensed professionals call !be Santa CIata Valley Water District (District) at (4011) 16S-2IiOO, or visit !be District', websile. From !be District', botDepage at blip:! """'.heynooIt.com select <Water Supply> then <Wells and Water Use>. ,- .;.)...:.....,;..... ;....> <'.:,.':..'...:.:......:.'- ,';'}.;',,", The weill. newly constrvcIocI. Or mai""'¡'" '. . or repair """ r-mty doo¡e. , The pump""" primod with i__. There 10 _ing _ around Ìbe....n or waiot dr,jnlng ....,rd!he..... .' . ,:" '. . ':.' ":. ":" c>: The c:oncr*....n pad 10 crGeIœd or... . .JIec! from !he wellcaoIÌIg.·..:.>· ..... "':' The well i. noi eompIeIoIy ..;.,~ 09alnsl""Iíxe.· waIor, i..-,"':dherlorei¡¡n......... R.grade """,nd !he well to !he ground tIapes away from ya'........ .... . I/&>Òur pad or fix and seal all ";.:do and gaps. . -".';, ;,.,:.-,-,:':".:,';'",-:'::.,\:-,,:.',:"""'-':-','"'".,,:>.::,. .....'.;-. ',', ...-._'::.:.<.......:::.::'. .. Repka ani missing pIUSs. cap <my open pipet. anyopeninj¡o. _ oreiacb. . . ;.....- .., ',','- .... .. ' .. .," . 'Ccmd a Ik:ensod well ;,.",.,.,_ to replace or InstoII a _woIIhoad gosbt, . ConIad a watM sytIom ~".Jdcf to dean and seal, Make _Ihat yao¡r plumbing i. not ""'.....10<1 10 . anaIher oourœ alwaIorlhat may be eonIanllnatod (o,g: a defunct commúnily - tyIIom}, huIaII a back.ßow p......_ ~ce on """"I auIdaor faoœI (CMIiIabIo at mast hardware and plumbing ~ .-.¡. . '. ~ConIad a Ik:ensod..... __ to........ that there'lo proper back.ßow ".-011 within !he well, FI..h I.. regularly or Th8'~.' tonk is dirtYDt,,,.,p,ol,' ~'~'o:::;, There are erotKÒnnodi.... in !he plumbing sytIom. . There are deacMnd or"""'¡ _ n.... ~ to your plumbing sytIom, ' . ," ',,--,, " .- " _ ~.unu..d r..... or _.... aI!he ...".;, sytIom, 0Conlad a Iicented.... _ to ...... and ."""if. The well CClSing i. cor,od..;!, There I. oediment at the ~ aI die. well, '!be well caaing Is perIoiaIed 100 high or Ìbe tonllory.... i. naI adequate, . . . oCanlac;t a ncènaed.... _ to dnll a nØOi.... and to properly destroy !he old well. Step :z. Once ynu have localed and eliminaIed !be source of !be bacteria, disinfect !be system. For instroctions on bow to properly disinfect your well and distribution system, visit !be Couaty Department ofEnviromnen1a1 Heal1h web site at http://tnrw.ehinfo.OI1I,call !hem at (4011) Z9'J.6O(iO, or call a licensed water system coottactor, Step 3. IMPOKfANT: before drinking !be water, test a _ sample for total coliform bacteria. If !be r<sUlts are still positive, ,WI ar step one again. q;,g · · · · · · · · · · · . · · . · · · · · · · : . · . · · · . · · · · · · · · - . · . . · · · . ~~ .... X. I I"~ I X, ..~ '. . '., -:- . xl: I, r . t X II X r: __ ..... xii, ,I· X"· x" Be.."''''' . -,' I, x X "I: I, X· X c¡,¡;..¡,. .' :. ' .... ',' · ,::, I ~" x I'·;;, . .,' '. '.' ~~~' 'I' XX. > X ~ c;;¡;:- : . '.':. ,'; . :::..: '.:.J.! ...: :", x.. x -.. :::'d " ,,:' r -t- X 'r~' :, xi Hydrogensullido .' X X' [. X'[I XX' I 1ncrgonIcs, mi........ (sOme) . X I I I X I lran/ma_ _ dIucIwocI . X' X' ' . X X,¡ n ,- lron/mongaM.. - insol.mle I ' . X X Lead.. ;' 1'1 . . X X MtKœry . '. : I XIX I X J. I X NIIniIo I X I X I . X Odorand_,:' .. I X. X X X X: x'l Ix XX .. PÌo1iddeo loÓine) " .' . I·;· xx 1 .. ¡ . )c I- ,', X··X .: Radium '" 1-: I X~I X'.. . X' . Radon!!", ,X' X . . , s;;¡t:¡ . ,.... ,'.. .. X. X· Sand,IiIt,c:lcJyþurbidllyl ..' . : xi [ f--'-- Volatile organic chemicals loame) X X X' [X I WMn Wøw.d bv mlldlonicol Rllrallon or an ocIM*Id œrban I\ier 2 WMn~lnfow~ ¡OnlylorwlaldeorJClllic~wilhhlghboilíngpol'" . OIIwwuJerqualltyproblemsmayinlwÑrewilhhalrllelt ,Wllbaalllre"lng , OhnNCUi~~"~ 7 Ther. ore wvwaI cdnnt types 01 odiwI:Rd corbaIliItws e.g. gn:n¡Iø", block, powdIr, *I. not cIrypes wed; an aI ,-Ibood. TøbI." m;" WøtwQualify~ ønrlfi'om 1996. Rid W""'¡, ..d(I996. '57Wøy1 fÞPraIIfC:I V_ '*"'- Emirøn_t (cwtd YocMIJ: Lhlwnfy øilllnoil oIltbanøCltampøiøn.. NotÍI C..tul R~~, _583. WIud Cmt I Do About O/Jw' Problems WIIiI M, Drinking Wøter? Most groundwater does net require eøy treanncDL H you have bad yoor waf« tested and found a problem that you want to treat, Ibm are many _ typeS of neatmeDt awiJable, Nor all ..- tteatment systems work foc ever¡ contaminant or for every water type, Once installed, most sysICIDS require routine oWnteoanœ to continue performi..g properly, ~y maiDtaiDod syslemS can ""use more damage _ baYiDg DO syskm at aU. Yoo oced to know what you want to remove and if you will be able to perfCllD the routine m!t;ntP.nAnce Þef.,. yoo invest eøy JDCDeY ill a sysrem, See 1hc guide 00 1hc left fŒ 1hc DJIioos available fŒ YOOf particular probIem(s), Some DJIioos remove a greater pen:eDt of 1hc cooceDI1'aIioo 1bao o1hcr optioos listed fŒ 1hc same substaoœ, We bigbly ICCOJIDDCO<I that you talk with the manufactUreI' or a ..- trea1lDeDt profcssiooal to get . guarantee that 1hc system you are considering will work in yom situation. Some water may need to be softened or pre-filtered Œ 1hc pH may oced to be adjusted priOl' to trcatmeDL '1 ~3 c¡ Resource Guide LOCAL GOVERNMENT Santa Clara Valley Water DIstrict (SCVWD) The S_ Oar> Valley Water Disttia (DisIrict) i. die groundwarø'managcmcot _ fur SaDIa Oar> County. The District's mission wilh respect to wc11s is 10 ensure dial wells arc constrUC(Cd. maintained, "'" dcsIroycd in a """"",1hat will... poteDIiaI1y _ die groomdwa1a' basin. For infœmarioo 00 dJe coosøuc1ioo "'" _00 of weDs. groomdwa1a' IcveIa, groomdwa1a' quality, "'" local groundw1Icr _ "",...w.a in SaDIa Oar> County contact tbcDisaict. (4l1li) ~-:z600 htIp:1/www.beyDoall.coDl Cølllød 1M DiØritt if JOI' "." ø ql"rtimt øboIU: · (JrouøI..- QuaIiIy, Levels. Flaw Directioo, or Geoml lDfmnaôoo · WeD. Consttucûoo.. Desttuctioo. Permitting, ŒProtcctiOO · Dry WcJ1a..-8uxm Water Infilttaâon Devices · Underground St<nge Tanka · Medryl Terôoøy-Butyl EIbcr (MTBE) · NiD'atc (NO]) · Salt Water I:oausion · 501_ Spills · C-57 Làcenscd Wdl Coottacton · SweCcrtifiedLaboratorics F« &piUs, hazardous materials accidents, Œ illegal dumping COIQct the District's 24-hoor bodiœ (II1II) Slt-SlSl Santa Clara County Department or EnviromDeDtaI Health (DElI) The s_ Oar> County Dqm1mcn1of_taI HealIb (COODIy) is æapoosibIc fur p1JIOCÓDg pIIbti< health. The County ensures that all wells that serve leas than 15 homes comply with staœ and federal roguIations for drinking ....... quality, Wells lhat ~ IS or more homes ran under die jurisdiction of !be CatifonDa Dqm1mcn1 ofHealIb-. The Coudy is also the penni1ÛD8 ØfP'CY flY septic system ...-..I1..n__. (4l1li) 199-6060 bttp:1/WWW.EHinro.org C......IIII C"""" if,.. _. ~ øball/: · DrinIdng Waœc _ "- H..J1b Risb · Sepâc Syatcma · SweCcrtificdLaboralories · Well and Drinking Water System Disinfection Household Hazardous Waste (IDIW) Drop-OIf Facilities The Howehold Hazardous Waste Drop-Off Facilities p:oWIc !be "",""",,"ty wid> pradicaI plllluûoo proYCIIIioo .-giea for dJe ..., rocycling. and dispoal of prod__ng hazanIoua ..- Call die Houaebold _OIlS Was!< Drop-OtfFacilities for infonnaôœ 00 the proper di&po&al of household bazaIdous waste including a list of facilities in Santa Clara Couo1y accepting household bazzrdous waste. (4l1li) _7300 htIp:1/wwwJlbw_ State Certified Laboratori.. A tist of state ccrtificd iaJ:JtJra1Œies can be obtained by calling die County Dq>artn>oot of_ Health. at (408) 299-«160, or dJe SaDIa Oar> Valley W... DisIri<t, at (408) 265-2600, Yoo can also find a list of certified laborauries CD the District's website. From cbc District's bomcpage at htIp:1/www~ _ <Water Quality> Ibeo <If Your WalCt Comes From A Well> State Licensed Well Cœlratlors For a list ofC-57 licensed professiooala call die District at (408) 26S-2600, or visit the Disttict's website. From !be District', _ at htIp:1"""""""', select <Waa Supply> tbc:n <Wells and Water Use>. REGIONAL AND STATE GOVERNMENT CaIiforDia Department or Health Services (DHS) . Tho Divisioo of Drinking W... "'" Fnviromnontal ~(DDWEM)isresponsiblefordle regulation and monitoring of pobtic water syslemS. sysœms serving 15 Œ'more homes. ('16) 323-6111 htIp:1I........,dbs._ govlpsld....... California Department orWater Resources (DWR) Tho Depadment of_ Resomtes Iw infœmarioo 00 groundwat« .....gcment issues Ibrougbout CalifnmiL Thewcbpogebas aliatofuscfulpubli<a- nons on ground water. In addition, iofmnatioo 00. wa&:ct lcvcls and groondwatcr m_r-nt aM quality alii be _ for die CenIraI District (CD), wlûcb includes aD ofS_ Oar> County, ""'-. (916) :127-7590 htIp://www,dpiL........... gov/qi-biDlsupplylp/molD,pI Deparbnent or Toxic Substances Cootrol (DTSC) The Depadment ofToùc S""","", CŒmoI can bdp aDiWt:I" questions about what is a hazardous WISIt. bow 10 mIuce booscboId hazardous W81ie, wbcre 10 report spills "'" illegal dumping, "well "P:OWIC information on specific hazardous waste disposal or IundIing facilities, ('116) 3:14-17118 htIp:1/www,__ State Water Resources Control Board (SWRCB) The missioo of the Stale Water Resoun:es Control Boord is 10 """"" "'" enbaDœ tbc quality of CalifŒDia's watcr n:somces and msure theirpropcr allocation and efficient use for the benefit of present "'" _ gencrati..... Through die Regiooal Water Quality CoottOl Bomds, tbc State Boord """'" 1-tfD oIllhe Wale Dis<høF ReqIDmDcDIS (WDR) ond N~ PoII"OD Dis<høF EliminaIiOD ScMce tNPDESJ pcnmu. (916) 2%7-4410 ....:/"'""'.a..... I - pv . RegI..... WoIe< Qu8IiIY c-.. Board- San Fnøcioco Bay Regioo (R.WQCB) '!be San FøDcis:o Bay Regional- Qwlily CODttul BœnI is 1hc _ of 1hc s... Wale< ResourœS CODttul BœnI puvUting \œa1.-igÞ1 for !be San Francisco Bay Watc:Øbcd. ~ SaD . Fnmcisco Bay Rcgioø iŒIudcs all of die røthcm cities in Santa Clara Coonty to approximatdY CotbraDc Rood .. MŒglllIIilI, (511) 621-2301 htIp:l/www~1nrqcb1 . RegionoI W_ QuIiIJ Control Board- COllin! Coost RegIoo (1IWQCB) The Cenø3I Cœst Regional_ QoaIny ConIroI Board is the tøDch eX the Stale WaICt Resources CODttoI BœnI ¡xuviding Iocal...mght r.. 1hc M......., BII)' Warmhcd. '!be CeuInI Cœst Region includes 1hc _ pcrtion 01 S_ CIaJa County fmn approximatdY CotbraDc Rood .. MŒglllIIilI tothcPajaroRM:tinOOroy. (805) _3147 htIp:l,,"",~.. , - ..../rwqcb3 FEDERAL GOVERNMENT USEPA's Safe Drinking Waw Hotline The u.s.~ -"""A_'s s.c. DrinkIDg Wale< Hottino is...;!able 10 belp 1hc pobiU:,drinking_øIakoboIdoB,mI....mI local offiriabundcn1aDdlhen:gulali.... mlpograms dovoIopod .._10 1hc SlIfe DridångWalt< N;t More inf(][lDlÚOO about c.-atnÍftaJII& and poemtial boa1th_ "" be _ byalliog 1hc USFPA's Safe Dridång Wale< Hottiøo. Tho bodino mI web page obo provide ioformatiOD on œsting mI ~g priwœ well water and wbeœ to find man: iDfŒßlltÎOD. (1110) 4U4'M WIp:l/WWW.- J!O'/sor-/¡nnIIsl...... Food and Drug AdJninisra1ion (FDA) _"""'dDngs.lhc Food ondDrng- ..~lhebolllod--' Contact lhcFDA if you have qllClÓOßS about the safely (II' regulaåcn of bottledWatr1'. (1110) S32-4448 ~Up:l/wwwJda.goY PRIVATE ORGANIZATIONS california Groondwater Associaüon (CGA) The CalifŒØia GluuUIiwak:r Aisociatiœ (CGA) is a non-profit organization. Its members inctOOe WdCI' woO drilliDg mI_"'"""""'" _lion mI .......-..... plogisls,~, bydroIogisIs, govcmmont ompIoy«s and odIm _ng" Ibo groundw.ta' fiokIlbrougbout Califon>is. Contact CGA r..iof_onlhequouDly,qua!ilymlawibbilily ofCalifmåa's groundwatcrresourees. (717) 571-4418 htIp:l/www.gnnmdb1o.o<T: Tbe Groundwater Foundaü... (GWF) The QroundwaItr Foundation is a DOI.~fŒ'-profit orgaoizarioo that is dedicak:d to infmning the public - grnundwato< """""" They provido """"""" educatiooal progœns and pubticaóoos for aD ages on 1hc im¡J<x1aRCC of groundwata' and groundwata' ~ '!be GWF obo oIJors IOCOgRiÛOD and support f.. Ground- _ Comnnmilios and AfIi!i-. (Il1O) 8S8-4844 htIp:l",,",-_.or¡ NaIioøaI Ground Water Associaüon (NGWA) The Naócøl Ground Watcr Aisociaûon is a DOI-for- profit organizatiœ wtøe mission is to cnbance the .tills mI cr.dibìlily 01 oil ground '""" profossionols, dovoIop mI exchange ìndus1l)' _ge, and promo!<> 1hc ground w_ mdøsIry mlnndOßtanding of ground _........... Contact Ibo NGWA r.. infmnatioo on p,tOUDl water smdics and publications _,r..answmlo!JoquonllYoskodquomons _ ground WI/Of, mI r..lhc I_ground '""" news and legislatim. (880) 551-73'79 htIp:l/www.ngWLOrl National SaDiWÏOII Foundation (NSF) The NBional Sanitation Foundaóoo is a oot-fŒ-profit ~ 1bat "'" paducIa rdaûng 10 boa11h and Ibo............NSFconifios1batbomo-t units.-lhc maDtIÚCI1IJ<ß' perfmnaŒ< claims. Cootact the NSF for a list of treatment units that arc ceróficd 10 nmove yOID' contamimml cl coocem. (Il1O) 673-MIO htIp:l/WWW....r_ NaIioøaI Small Flows C1eariDghoose (NSFC) '!be National SmaD Flows Ooaringbouso is funded by 1hc U.s, J'JtvjronmoDtaI_ODAgcDcy IoproYWIe smaIJ CQIIIIDDIJities with teclmica1 assisWJce 00 waste~ water issues. Contac11bc NSFC if you ~ quesûoos _ sopûc _ œs;gn, instaIIatinn.. maintonan= (880) 6Z4-8301 bIIp:l/www........... edalllllfdNSFC ),....pqe.bImI National Well OwDer AssociaIIœ (NWOA) The NaIional Wd1 Qwnm; AssociaIioo is an online assnciation prov;.üng compd>onaive mlUH<>datt infmnaboo 00 the purdIIIIe aød .....¡_...-. of wau:r welts. Cront<d by Ibo NGWA.lhc NWOA aite r...... infoonation on bow 10 own a ¡mraœ ware:r system, bow 10 ØlIÎDIaÏn a well. and bow 10 JX'ok:ct!he waœr supply. VlSitŒs 10 tbc site can alsofiDd a searchable list of waœr well cœtnCUJIS and informatiœ on the nature of ground wa1Cr ~ bUp:l/WWW,__ Water Quality Associaü... (WQA) The WaIc:r Quality Associatioo is an iŒmational trade associaIìOD tOpOSORIittg 1hc boosoboId. coounc:rcial. industrial. mI small community waltl' trcaDJ]t:Id iDdustry. WQA is a resource œ infoomdÎOII., product teSting, and professional ccrtífication for water 1ISCß. Contact the WQA for more infonnatioo OD home -_. (go&) 7~ bUp:l/www,wqa.org 1,11 San10 Clara VaIey WcJ.Ø( Dismd 6 ~-~ "-, . --- ...', '. ...'''.-.'........: ...., County of S.nt8 CI.r. ~,_"I""'-.ntaI_'" 5150 Almaden F.xpwy San Jose. CA 9SllS (4C8) 265-2600 www.heynoah.com 2220 Moorpmt Avenue San lœe, CA 95J2! (4C8)299-W60 www.EHinlo·0<9 o PrInted DfI recycled paper ~ ~inks. 5/01. 7K, YD 1--'1;). - DailyBuJletUl,com - News , - -e~ - Article Search Bank of America ~ SPoIITl!IJ.ENTEIITAlNMENT [ØUSINESS ¡ LIVING ¡OPINIONS I HEALTH f FILM i . B EMAlL ARTICLE [ILINKTOARTICLE.Ii;! PRINT ARTICLE Article PubIioI1ed: SøIunIay, __ 22, 2003- 6:46:16 PM PST LA-Z-ßOY . Advenced search ~ Debate continues on risks of perchlorate levels Archive Search Marketplace Place an Ad AdHou nd MyUst Autos Employment Homes Rentals Special Offers Personals Obituaries Business DIrectory Worship with us Special Sections aa55lfteds News Route 66 Religion Traffic Stat. I Nation I World Weather Newsletters Sþecial Reports Rancho Cucamonga Fontana/R,latto Chino Valley Jurupa Valley/NoreD Upland/Claremont pomona/Diamond Bar La Verne/San Dimas Ontario/Montclair David Allen OUr Past Sunday's Best Society Lottery Colu mnists Coffee Break Flash games Crlckler Crossword Horoscopes GOSSip Sports Challenge Oct. 8: The chemical seeped into the groundwater dozens - Perchlorate pollution suspects play the of yeera ago, and people drank ij without knowing, bleme game Oct. 3: No one bothered to test for the rocket fuel _ S.B.: Landfill nol polluter oomponent until 1 QQ7, Suddenly, perchlorate was everywhere. It turned up In Rielto, Colton, Redlands, Fontana and Lorna Linde wells end wes detected in waler supplies In 13 other BIBles. Water providers screamed for regulations, but none came. By 8COTT VANHORNE STAFFWlbI&:JC RELATED Jan. 21: - Rìalto sues over water contamination Oct. 17: . Judge questions perchlorate fine SlIp. 12: - Water bill inches its way to Cavis 8ep. 10: - Committee OKs perchlorate cleanup funds Aug. 22: - Worker: Toxies burned al site Environmentaliala end groups with perchlorate ties Aug. 7: such as the Defense Depertment begen battling - Fecls agree to perchlorate probe over what level in drinking water is safe. Jut,i": Corporations. water providera and health officials - Rialto pursues water savings sank millions into studies and treatment systems to remove the chemical, but six years after its May, 7: widespread dlscovely, perchlorale remains en - Senator writes for cleanup of water enigma. Those, examining adult exposure reported Apr. 28: trace amounts m many local wells are harmless, _ Perchlorate found in le"uce while scientists conducting experiments with " pregnant rats concluded the chernic8J ceusea brain abnonnaJities in newborns. OTHER ARTICLES IN THIS SECTION There's no proof the chemical causes cancer, and the Celifornia Environmental Protection Agency 2128/2005 doesn1 consider perchlorate a cancer-œuslng - Crumble continues in Phillips Ranch agent, yet politicians, ~ and - Median home prices nearing $500,000 environmentalists have called it a carcinogen, . NASCAR ace deals for charities "I think in the U,S, we have a basic mantal conoept -ICTN news channel signs off that if you can II'INsure ij in the water it shouldn't . Inmate's inpul on move questioned be there,' said Dr. Steven Lamm, a Washington, _ Officials: Upland eyeing Hesperia's D,C., pediatrician who conducted a perchlorate city manager exposure study for American PacItk: Corp., which . Everything you need to know menufactures the rocket fuel component. about NASCAR Local wella - West Nile virus found in Ontario chickan . Suspected car thief leads police on a chase - Grove Theatre makes comedy casting The trace amount of perohlorete in many local wells was undetectable until Apri11QQ7 when a California Department of HeeIth Services engln_ http://www.dailybulletin.comlStories/O.1413.203%7E2148l%7E1787262.00.html He ". /-.';Y:"é::~ ;~ :~ ;":'~~ .... :..:¡,,¡¡ ;!;~ß 2/26/2005 r-i'3 · , JJ811y l:Su.nenn.com - NeWS Sports Lakers I NaA Dodgers I MLB Angels { MLB Local Colleges Kings I NHL use UClA NFL Special Reports Prep Sports Sports Challenge Sports Columnists other Sports Horse RacIng U-Entertainment Film TV Music Gossip D1ning Living Travel Food Health Business Opinions Services Subscribe Pay I Renew Vacation Holds Delivery Problems change of Address Info ¡...-.....-.......................-..¡¡¡ : Slop mltllna ellla !r- i willi. you'r. onllne' ~ ; ~~ , ~ ~1 ,,"1 ..!t'.ðy.¡¡(M&,,ffi,~:t'i!:"~;'4'g'N;;)..."!';ii~',~Wf !£~I.WmVI<l1~)~/¡."',';~~~~~"IW· discovered a method that changed the deIeCtion level from .o()() pans per blHlon to 4, One ppb Í8 equivalent to a half re~)C^n of the chemical In an Olympic-sized swimming pool, which hold8 about 660,000 gallons ofwater. The Innovative technique created widespread concem among envlronmenlaNBIs, especially after minute amounts of perchlorate --. found in the CoIoredo River, a drinking source for about 20 milian Southern California, Nevada and Arizona residents. The chemieel in water supplies came mostly from plants that manufactured the compound and missile production sites, where perchlorate was routinely washed out and replaced because of its short shelf-fife. --0----- call .. Firefighters contain fire in single-family home - Freeways to close briefly for ~re work - Organiuöons help school grow garden ø Bone marrow drive planned in Rancho - Thirty cited In truancy sweep al Monlcla~ High - Chino Vslley school board stili working on criteria * Students chart dean boat run under sun - Kiters let it fly as they get high and mighty - Dale book Kerr McGee Corp. and Lockheed Martin Corp" which manufactured the rocket fuel ingredient for the military, joined forces with other perchlorate users and makers to aeate the Perchlorate Study Group and the Counal on Water Quality, The corporations helped fund numerous studies, including many that reported low levals of perchlorate are harmless to most people, "Our goal is to get the infonnation out,' said James Strock, a fonner U,S, EPA law enforcement officer WOfklng as a consultant for the Council on Water Quality, "It's in everyone's interest to get the best scientific deta when they are dealing with an issue that involves public hM~h,' Standards and studies A rd of 20 b r ,could cost the corporations and the military bHlions of dollars in ma nup costs, A higher level would mlnimizeJ!" nñã'ñCiãlhlt. .- The U,g, EPA repo¡1& 1 ppb would be a protective level, California water regulators, still ) settling on a recommended maximum, are considering between 2 and 6 ppb, S_ water oviders can serve water with 8 amount of perchlorate, but they have If) let eir goveming b I8S a ppb, HëiillñõFflëlals also recommend S or -..-.---, >f Perchlorate levels In Inr.al ~ range from a hiah of 820 ppb to e low of 4,6 ppb, but a majority are In the teens or lower, One study that received funding from the Perchlorate Study Group reported that levels of about 200 ppb have no effect on adults, The study involved 37 men and women who drank perchlorate-tainted water for 14 days, 'BIs tested rticipants'reactions m . g Iodine uptake in their thyroids and hormones giand )t There is universal agreement that perc:hklrate blocks iodine receptors in the thyroid, The d is over can u nn, thyroid hølth The thyroid needs Iodine to produce hormones for metabolism as well as neonatal and) newborn brain development. The hormones are SO important every child bom In the United States Í8 tested to make sure he or she has sufficient amounts. 'MIlle the chemical had no effect at 200 ppb, sàentIsIs noted that it blocked iodine uptake about 70 percent at 17,000 ppb, The higher dose stopped some iodine from entering the thyroid, but did not reduce the hormones produced, Scientists said no reduction occurred because the thyroid stores enough hormones to last http://www.dailybulletin.com/Stories/O.1413.203%7E21481%7EI787262.00.html 2/26/2005 'I - /.14 DailyBulletin,com - News I'age j or ;) 1< several months, and because the chemical only stays in the body about 8 to 10 hours before it is urinated out, American's iodine-rich diets most people eat lwo times the needed amount make up for tempola/Y iodine uptake reduction, researchers said, Tha 2002 study 18 also the basis for the standard proposed by California offIcals. The state EPA took the 200 ppb I1(Hffect level and reduced it considerably to take into account fetuses, pregnant women and those with under-peñonning thyroids, Richard Pleus, a Seattle toxicologist a~d one of the study's co-authors, said California officials must have "mislnterpretec' the research, "At a dose below the threshold to a possible effect, you are not going to see anything happen,' he said, "The concenlration is so low even drinking two liters a day is insignificant. ' Environmentalists said the study didn1 address effects on develo i fetuses or Ion -term ora e ex ure, ~ don't know how the population as a whole would be reactin to this exposure,' said o California 'i , rats "Thers how we test drugs in this country,' said Renee Sharp, a spok8$Woman for the environmental watchdog. The animal studies reported that low amounts of the rocket fuel ingredient affect newborn brain development by reducing the mothers' thyroid hormone production, "The fact is the more science is done the more clear it is that perchlorate has effects at very low levels: Sharp said, But some scientists have deemed the rat research unreliable, The critters are more susceptible to perchlorate than humans, and the studies focused on parts of the rat brain that aren1 historically linked to thyroid hormones, scientists said. 'Those studies should be set aside because they were so poorly done we could not come to any conctusioos,' said Hal Schwartz, a clinical professor of medicine at UC Irvine. Schwartz participated in a recent symposium of scientists who conctuded the animal research did not prove perchlorate caused the brain abnormalities seen in exposed rat pups. But Schwartz said the chemical deserves more study. "Perchlorate can be dangerous: he said, "Tha issue is what concentration is dangerous.' No smoking gun Environmentalists also point to an Arizona Department of Heaith Services study that compared levels of Ihyroid-stimulating hormones in newborns in Yuma and Flagstaff belween 1994 and 1997, Yuma gets drinking water from the contaminated Colorado River: Flagstaff has a pure, mountain source, The Yuma Infants showed significantly more thyroid-stimulating hormones than those in Flagstaff, leading researchers and environmentalists to suppose the newborns' thyroids worked haJder because their mothers drank the contaminant. But one of the study's oo-authors said the research is no smoking gun. http://www.dailybulletin.comlStorieslO. 1413,203% 7E21481 % 7E1787262,OO.html A!~ ¡.dw.. 2/26/2005 fl5 J q--'15 \0 Q E-< >-< ç:c >-< ::r:: >< ~ ... \Den ge ~.- oe oe N.!2 10. ::;)0 "'c I.n._ 0't 1 CU ~Q. ~Õ 1)11. ~.a ~" ·CU o > Zo .... a.. .- Q. EQ.· a..ral.n CU"O 0.00 en.... 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Iò... .,J"J .J c ì:tJ ~ 'C '~ ,.:s; Do q~50 Gary Chao From: Sent: To: Subject: EXHIBIT E Sue Tippets [stippets@valleywater.org] Wednesday, February 16, 2005 4:54 PM Gary Chao RE: Gary - City of Cupertino The three new homes will not pose any greater threat of contamination to drinking water supplies than the existing homes in the neighborhood, Groundwater extraction wells are built with a sanitary seal - a 50' concrete seal around the well casing- that protects the well from drawing water from within 50 feet of the surface. In addition, sanitary sewer systems are designed so as to not infiltrate sewage into the soil. This is best handled with solid piping, However clay pipe was very prevalent for sewer systems for years and may still be used. Clay pipe is more susceptible to cracking or separation at joints however the septic pollutants are removed through the process of infiltration through the soil. This typically occurs within the top few feet of soil and will not extend to the depth of the well intake zone, Other regulations relative to sewage pipes and water supply are governed by the Department of health Services. The regulations require separation of water supply pipe and sewage pipes both horizontally and vertically within the ground so as to protect drinking water supplies from the potential for contamination from sewage pipes. I hope this addresses your concerns -----Original Message----- From: Gary Chao [mailto:GaryC@cupertino.org] Sent: Tuesday, February 15, 2005 8:17 AM To: Gary Chao; Sue Tippets Subject: RE: Gary - City of Cupertino Sue- Is there any way you could mail me something by the end of this week?! We really need SCWD's opinion on this matter! Thx. -Gary > -----Original Message----- > From: Gary Chao > Sent: Tuesday, February 08, 2005 4:57 PM > To: 'stippets@valleywater,org' > Cc: Gary Chao > Subject: Gary - City of Cupertino > > «File: greenleafmap.jpg » > Sue, > > Per our conversation, here is the tentative map of the project. Lot 5 locates the existing water facilities/equipments of CA water service (which will be untouched) and Lots I - 3 are the new lots where homes will be constructed on. Lot 4 is actually a remainder lot as well for road purposes. Currently it's one big lot. This project is exempted from CEQA since only 3 homes are proposed. AS I was mentioning earlier, we have one neighbor (Mrs, Helgreson) that is concerned with the potential contamination to the drinking water from the the new sewer systems for the three new homes. Even though CA water is the responsible water agency on this project but we would like to get an independent opinion on this matter. If you can just go ahead and summarize what you went over with me on the phone that would be greatly appreciated! FYI, the City is in support of this project, In fact the Planning Commission approved it already - right now it's on appeal (by 1 Cf -5;) Mrs. Helgreson) to the Cit, ouncil, I will also talk to t. Sanitary District on this matter as well. Thanks a million! > > Gary Chao > Assistant Planner > City of Cupertino 2 ~~ MARK THOMAS & COMPANY, INC. OAVID E, ROSS ~ o¡Ull",~ ~~. 4.; i " '1; <'S¡: 0........ ~8L1SIl¡.\\ "I: BOARD OF DIRECTORS DISTRICT MANAGER-ENGINEER DISTRICT COUNSEL ATKINSON. FARASYN, LLP HAROLO S, TOPPEL 20833 STEVENS CREEK BOULEVARO, SUITE 104 CUPERTINO, CALIFORNIA 95014-2154 (408) 253-7071 PHONE . (408) 253-5173 FAX WILLIAM A. BOSWORTH DR. JOSEPH F, BROWN JOHN M. GATTO CURTIS B. HARRISON WENDELL H. KERR, JR. February 16,2005 File: CSD - MOP Planning Department-Cupertino Mr, Gary Chao City of Cupertino Attn: Planning Department City of Cupertino 10300 Torre Avenue Cupertino, CA 95014-3255 EXHIBIT F Subject: Name: Address: APN: Tentative Map Greenleaf Drive Project Greenleaf Drive 326-33-107 Dear Mr, Chao, The Cupertino Sanitary District has reviewed the plans for the proposed improvements and has the following comments: In our letter dated November 22, 2004 we stated that sanitary sewer service can be provided for the proposed improvements, The final improvement plans will need to be reviewed by the District and District fees and permits are required, Sanitary sewer installation in accordance with the applicable plwnbing codes should mitigate any groundwater contamination concerns for the improvements, Please contact Vincent Luchessi or Carl H. Beckham at (408) 253-7071 if you need any additional information, Sincerely yours, MARK THOMAS & COMPANY, INC, District Manager-Engineer ~~~ Ç§' David E, Ross CHB:vl SUPPLYING SANITARY SEWERAGE SERVICES Foa: (ITY OF (UPfRJ'lMO, PORTIONS OF THE (InES Of SARATOGA, SUMNYVAU, Los ALTOS ANO SURROUNDING UNINCORPORATEO AREAS 9 -5t{ www.cupertinosanitarydistrict.com Cupertino Planning Commission EXHIBIT G January 25, 2005 development; is it the right decISIon to deny housmg projects ano leave the site vacant for 20 years? That practice needs to be addressed, Chair ng: · Said th were discussing the housing element tonight and h Apple, Va 0 south, Vallco north, and those numbers w' were done in 2003, · Asked staff to me back and discuss how they want reallocate them and why, since it makes sense that some areas it should be dense s, where industrial area should remain industrial. · e new option in the Hot Topics document where they Discussion ensued regardi the availability of mee' g room for the study sessions, Ms, Wordell indicated that the comm ity hall was not available on bruary 14th, She said she would contact the commissioners in idually to set a meeting date, ed the public, Fine Arts Commission and Housmg Commission for their 3. TM-2004-05, U-2004-06, ASA-2004-09 (EA-2004-08) Wayne Aozasa (CA Water Service), Greenleaf Drive Tentative Map to subdivide a ,95-acre parcel into four lots ranging from approximately 6,430 square feet to 8880 square feet, plus a remainder lot of 11,500 square feet. Use Pennit for 4 two-story single-family, two-story residences in a planned development. Architectural and site approval for 4 single-family, two-story residences in a planned development. Gary Chao, Assistant Planner, presented the staff report: · Application is for a Tentative Map to subdivide a ,951 acre parcel into 4 parcels ranging from approximately 7,000 square feet to 8,500 square feet, plus a remaining lot of 11,500 square feet. · The ASA and Use Pennit Applications are not being considered as part of this approval as the applicant has decided to proceed with the Tentative Map approval first. · The project is approvable at the Planning Commission level. · He reviewed 1he site analysis, private road, Califomia Water Service remainder parcel, lree removal, as outlined in the staff report, · Staff recommends that the Planning Commission approve the Tentative Map application in accordance with the model resolution, Noted that the title of the resolution should be amended to read "the Planning Commission is approving the Tentative Map application," Vice Chair Miller: · Noted that there were two unatIractive structures on the water company land and questioned if the slreetscape would be enhanced when the view is open to the public, q~S5 Cupertino Planning Commission 14 January 25, 2005 Mr. Chao: · That is why staff is suggesting some landscaping strip along the wrought iron fence along the private drive, to screen the use of the pump areas. The applicant will plant shrubbery and landscaping in the first 25 feet of the property, · There is a condition that requires the water service company to clean up their existing lot. They are encouraged to plant more shrubbery to cover the pump station if desired by the commission; it can be made a condition of the project. · Lot 4 is actually a lot, but it is a lot to be designated as a private cui de sac; it will be maintained and incorporated into the CC&Rs of the project of the HOA, Com. Giefer: · Questioned if the pavers were ADA compliant. · Asked what appeared 10 be either a capped off well or a wa1er storage well underground, · Questioned the contradiction in the staff report, Page 3-3 and the resolution Page 3-6 regarding tree preservation, · Disclosed that the developer was presen1 when she was on the site, Mr. Chao: · Said the Building Department would look at the pavers when the project comes in for a permit. Not necessary to be stipulated in the model resolution, · Said the experts from California Water would address questions about the equipment. · Relative to the language in the model resolution and the staff report about the trees, said the intent of the conditions so that tree Nos. 7,56-58,71 could be removed at the discretion of the property owner in the future because they are not specimen trees, Any other trees shown on the map to be preserved aside from the specific numbers are to be recorded as covenant on the property to be maintained and preserved, Com. Saadati: · Asked who would maintain all the landscaping around the iron fence and the front. Mr. Chao: · The HOA for the project will maintain the landscaping under the CC&Rs, Staff recommends that the landscaping area in front of the water company site be made part of the HOA so that they can maintain and upkeep the area, It will be confirmed with the applicant tonight. Chair Wong: · Relative to the building envelope 1, 2 and 3, especially No, 3, asked what the size of it was; and stated that Lot 3 looks narrow, · Said the applicant can address that when subdividing this lot in the future as the city grows, Will there be enough capability or capacity for a city; do they need the extra space? Mr. Chao: · Don't know the specific square footage of the actual buildable envelope; the lines being called out on the site plan shows that it conforms to setback standards; applicant can address that. Vice Chair Miller: · Disclosed that the applicant was present on the site when he visited it. q ~5(P Cupertino Planning Commission 15 January 25, 2005 Wayne Aozasa, agent for the developer: · Application was a 4 lot subdivision, and through working with the Planning Department resolved it to a three lot subdivision; the 4th lot is the road which makes it a totalS lot subdivision with the water company lot being the remainder site, · Relative to the building envelopes, we have had some elevations and some architectural drawings done, and the cuI de sac and the wrap around and the Water Company dimensions got jostled around a little, so that we wanted to get the subdivision done first and then come in with the homes after the subdivision was accomplished, · Relative to the landscaping maintenance in the rront area, the Water Company has provisions to maintain their own site and I believe the Water Company has a lot of sites in the area that are in the middle of residential districts and there is a provision that they maintain their own sites and have a rront yard provision or policy to maintain their properties, Com. Giefer: · Asked what the large concrete obj ect was in the center? · What type of station is it, is it a pumping station or a drinking water pump, · As part of the Homeland Security Act, asked if they were required to harden this particular pumping station or their drinking water storage tanks, Expressed concern that additional security measures may have to be installed in the future, · Introduced Ron Richardson, Califomia Water Service Company and Shawn Hefner, California Water Service Company: Mr. Ron Richardson, California Water Service Company: · Said the object was a cement foundation for a water storage and aeration tank. · Stated that the station was a well station that pumps directly into their distribution system for drinking water for the residents of Cupertino, · At this time there are no specific plans to increase the security of the site, The site currently has two locked fences, Chair Wong: · Asked if, expanding to this area as the city grows, did they need to expand on this particular site, Mr. Richardson: · Said it was a question for the water company, but said they do not intend to expand other than the lots they are subdividing, He said he assumed that the aquifers and the wells at which they are drawing the water rrom have the capacity to do so. He said he could not assess the future needs, but noted there were large pipes underneath there and that is the main service for the city of Cupertino, · He said he shared the concerns about the security systems for the water supply for the city of Cupertino, They are attempting to enforce the non-pedestrian or non-entrance no trespassing type of environment for the water company and the water company has a public conscience to deliver and keep the water supply safe for the city of Cupertino, Chair Wong: · Expressed concem that as the city grows or the metro area grows, this will be three lots they will lose, 9-57 Cupertino Planning Commission 16 January 25, 2005 Mr. Richardson: · Said they had the capability if the subdivision would be approved to be able to improve or introduce additional facilities at that site which could potentially allow them to drill an additional well once the life span of the current well has been exceeded, They would also potentially be able to add facilities that would enable them to boost the disinfection of their water supply in that area as well, · Despite the potential for the subdivision and not having the entire amount of land, they would still have the opportunity to make improvements to the property, · In Cupertino they currently have three wells 1hat provide water to the residents of Cupertino along with one interconnection with the wholesaler Santa Clara Valley Water District. · There is also one well at the Greenleaflocation, Vice Chair Miller: · Asked if there is any danger of contamination of the aquifer from the construction of homes in that area; and how deep is the aquifer, · Asked ifthere had been any incidents of that at past sites where similar developments were done, of a leak in one of the sewer lines or something similar that contaminates the area and then the well. Mr. Richardson: · Said he did not perceive the possibility of any contamination as a result of the building of homes in areas that are immediately adjacent to their wells, · Said he did not recall any incidents of that nature around new developments, and said the aquifers in the area are typically quite deep, Mr. Aozasa: · The water company plans over a hundred year period of time, · The aquifer is likely hundreds of feet deep, · Said the turf block or interlocking pavement to be situated at either end of the driveways or on the cui de sac, is an alternative and not a prescription, He said he was unable to find other cui de sacs that were subdivided or made with an interlocking paving or turf block paving sequence, · Said he wanted 10 ensure that the Commission was aware that in the findings for an interlocking pavement or turf block pavement application, it was an alternative to be looked up for drainage not a prescription for them; they would like to amend that finding for the interlocking pavement and also either delete or amend the condition of approval on that interlocking pavement sequence.. David Lee: · Canvassed the neighbors; many had no objections to the project; two neighbors objected, one had tree issues and didn't want the trees cut down, They are cooperating with the city and will work with 1he arborist; the area requires a lot of landscaping, especially trees, The back and side of the lots abut the commercial real estate and side of the lot which is an area that cries out for landscaping, He said they will not back away from the needs of the community, · Talked to a neighbor residing across from the lot; desired some trees up front, and will make provisions for trees as well, · Third neighbor expressed concem; resides across the street from the lot, tentative map shows the private street, opening of the private street faces their front door directly and they are practitioners of fung shui, He said he arrived at three concepts, none of which are mutually exclusive; his desire is to help mitigate the impact of the private street to their home, f(-58 Cupertino Planning CommIssion 17 January 25, 2005 Discussed possible mitigation, The first possibility is to move the street over to the east by five feet which puts the mid-section of the street facing directly into the side yard, The second possibility is to reduce the opening of the private street to twenty feet, but keeping the street inside at 28 feet. It narrows the opening and should not cause a safety issue, 20 feet is the typical opening of the driveway, If the opening is narrowed to 20 feet, they can reduce the exposure of that opening facing their home and also maintain the 28 feet width of that street in the cuI de sac area. · He said he offered to bear the cost of landscaping needs at the front of the Wong's home, planting and developing a hedge so 1hat it would obscure the street from their perspective and would satisfy some of the blockage of the ftmg shui, · He said he felt the proposed mitigation and offer to pay for the landscaping would address the fung shui concems, · No matter when you put the street, it is going to offend somebody, · Said it would be built into the CC&Rs that the HOA would maintain the landscaping around the Water Company perimeter, · Said the water company would maintain the area around the wrought iron fence, such as debris collecting under the wrought iron fence, Com. Giefer: · Expressed concern about rubbish collecting in the area ofthe fence in a residential area, Mr. Chao: · To address the Planning Commission's concern about maintenance of the front area of the water company's property and the existing water pump station property, staff suggests that a condition be placed requiring, prior to final recordation of the map, that a maintenance plan or program be submitted to staff for review and approval. Chair Wong opened the public hearing, Cathy Helgren, Greenleaf Drive: · Read the letter she submitted to the Planoing Commission expressing her concerns about safety issues relative to possible contamination because of leaks in the sewer pipes on the water company property, causing health dangers to the nearby residents, · Also mentioned were concems about the loss of trees, impacting the view and beauty of the property; and diminishing property values on some adjacent homes because of the impact of the two story homes on the existing homes, · Opposed to the proj ecl. Lei Wong, GreenJeafDrive: · Opposed to the proj ect. · Expressed concern also about the possible contamination of the wells, · Illustrated photos which showed various views from his property and the impact the project would have on his home and privacy, · Recommended that the Planning Commission reconsider the location of the proposed street because of the impacts it would have on his property, · Said that the applicant's offer to pay for the landscaping to screen the front door was acceptable, and narrowing the street to 20 feet rather than 28 feet was appropriate, Deborah Hill: · Opposed to the proposed project and the removal of the trees, q-S'l Cupertino Planning Commission 18 January 25, 2005 · Said many of the neighbors are opposed to the project. Lynn Carter, Greenleaf Drive: · Resides directly across from the water company, · Expressed concern about the wrought iron fence, and suggested a more appropriate fence with landscaping in front of the water company property, Vice Chair Miller: · Clarified that the house behind the pumping station would not bc visible because there would be a six foot wooden fence on the other side of the property, Chair Wong closed the public hearing. Mr. Chao: · Addressed the contamination issue; said the water district has specific standards relative to the distance a fence, foundation or roadway can be from their piping system or underground pipes, · Said as part of the project, a condition can be placed that prior to final map recordation, all the utility companies review the project to ensure the placement of any new sewer system, or that any underground facilities will not be too close to the water company's site or their equipment. · Relative to alignment of the street to Mr. Wong's house, by reducing the width of the road, the Fire Department has to be involved again, since 28 feet is the minimum standard width for a cuI de sac for single family homes, · Staff felt the pavers were an important element of the project, especially since they are removing a large number of trees; visually it offers a relief from the asphalt or concrete, It also may offer Mr. Wong some visual relief, · Staff may suggest 1he road be shifted by 5 feet, since it would not change much of the project. It could be considered as a condition and work with the applicant to shift the road 5 feet to the east of the project. · The wrought iron fence provides a pleasing view to the trees on the water company property and is more appealing than a wooden fence, Staff is encouraging the water company to plant trees in front of their front yard, Com. Saadati: · Relative to 1he driveway, suggested narrowing the front portion to 20 feet; fire trucks can still get through; their main concem is to be able to turn around, By narrowing the front portion up to the landscaping area, additional trees could be planted on the other side to maintain some greenery, · The applicant also agreed to plant additional trees along the side which would keep the area green and satisfy the concerns of the neighbors, · Relative to potential contamination, he said the project would not have a negative impact because the water table is so low and the aquifer is a few acres in area, · In favor of the project, with the conditions set forth, including narrowing the road with more trees; and planting additional trees next to the adjacent neighbors to address their concems, · Suggested planting shrubs against the wrought iron fence would improve the appearance and prevent debris from flowing inside the fence and be visible, Com. Giefer: · Expressed concern that narrowing the opening to 20 feet, and moving it 5 feet to the right, would remedy some of the residents' concerns; however, by doing so, it reduces the size oflot one, q..{po Cupertino Planning Commission 19 January 25, 2005 · Said she would prefer 10 continue the applica1ion, until it is understood what the impacts are of narrowing the driveway and shifting it to the right, so that it is not a problem for the neighbors across the street; since both the measures are necessary, · She said if a vote was taken, she was in favor of the pavers provided they do not create an ADA problem, and any trees relained be recorded in the CC&Rs so future owners could not cut them down, One of the primary concerns heard is the green screen currently present, and tree removal. Mr. Chao: · Said it would reduce it by 500 square feet if the opening was shifted 5 feet. Com. Chen: · Said she would like the neighbors' issues to be addressed before a final decision is made, · Suggested that a condition be added that the wa1er company be part of the plan review process 10 ensure that every tree planted and all construction work done would not impact the water lines or pump station on the security side, and impact the water quality side, · Include a condition that the water company clean up the site and maintain the site, Vice Chair Miller: · Concurred that the water company should sign off on all plans prior 10 installing sewer lines, · He no1ed 1hat the water company pointed out thaI the aquifer is a subslantial distance below the surface which also minimizes the potential for conlamination, · The issue across the street is a real financial issue because as the resident said, the fung shui does impact the value of the property, and it an important issue that needs to be addressed, On the one hand, the 5 foot move-over may have worked; that impacts the owner of the property, reducing what he can develop. It also creates the problem that it is a RI 7,000 zone; that particular lot would be below the zoning level and you would have to shift the boundary lines between the lots, · Another possible solution is narrowing it to 20 feet at the opening; 20 feet is the minimum requirement for the fire department and if it widened up after that, it may be a reasonable solution, · Another possibility is shifting the road to the left and meandering it back. It may make it worse from a fung shui standpoint. · Another possibility, at the opening, the applicant suggested that he could block the neighbor's front door with landscaping, but another alternative may be to block part of the opening with landscaping; and the neighbor would not be impacted, · Said there were solutions available; he preferred to work at the staff level. · Com, Saadati' s suggestion of more shrubbery would solve the problem of seeing through to the property. The wrought iron fence does make a better presentation as long as the lot is not open to a visual eyesore, · A property owner does have the right to develop his own property; it is not reasonable that the city not allow the property owner to do that so that neighboring residents can have the benefit oflooking over the fence to attractive trees, · The pavers enhance the street and the view into the property, and are important in terms of mitigating runoff of groundwater and the potential for doing that. · In favor of the project if the issues can be mitigated, 1-(p¡ Cupertino Planning Commission 20 January 25, 2005 Chair Wong: · Thanked the neighbors for attending the meeting; the applicant worked hard to address their concerns. · Said he concurred with fellow commissioners, and supports moving the road 5 feet to the east, narrow it at 20 feet and open up at 28 feet; staff recommendations on the review checks of utilities; ensure that vegetation is planted in rront of the wrought iron fence, Motion: Motion by Com. Saadati, to approve Application TM-2004-05, inclnding the condition entitled Retained Parcel Maintenance, stating that the applicant shall record a covenant and deed restriction running with the land obligating existing and future property owners to maintain the retained water company parcel and fencing free of debris and graffiti. Additionally, landscape materials and existing retained trees shall be professionally maintained in a healthy, trimmed condition. The property owner shall retain a property maintenance service to visit the site on at least a monthly basis to ensure compliance with this condition. Said covenant and deed restrictions shall name the city and the adjacent three new homes as third party beneficiaries and shall include some surety or other guarantees subject to the review and approval of the city attorney. Also include narrowing the street in front to 20 feet, and moving it over 5 feet; and include wording that the water company sign off on all plans for sewer lines. Second: Vice Chair Miller (Vote: 4-0-1, Com. Chen abstained) Chair Wong declared a short recess, 4 Z-2004-03, TM-2004-11, U-2004-09, ASA-2004-12 A-2004-10) Greg Pinn (0 Park Village) 10745 No. nza Blvd. (former anta Barbara Grill) Rezoning ofa 1.37 acre parcel rrom P (CG, ML, Res, 4-10) to P(CG, ML, Res 35), Tentative Map to create 46 residential cond iniums, Use Pennit to demolish a vacant res ant building and construct 46 residential units chitectural and site approval for 46 residential s, Tentative City Council date: February 1, Mr. Chao · Clarified that the tentativ for 46 residential units, not Mr. Chao presented the staff repo · Application is for a use pennit demo' the fonner Santa Barbara Grill and construct a 46 unit condominium building a podium g ge, · A tentative map and arch' ctural site approva . also requested to allow for the 46 units, · Applicant is also rezo . g the property to be cons ent with the General Plan in tenns of allowable density u 0 35 dwelling units per gross a e, · Reviewed the fol ing, as set forth in the attached sta eport: Project description, General Plan and zonin ,North DeAnza Conceptual Plan, Architec Improvemen ,Traffic Analysis, and Parking, Christy An Choy, Fehr & Peers Associates: · Revie ed the Trip Generation Analysis conducled, based on the trip rat rrom the Institule of Tra portation (IT), resulting in the detennination that the trip generation the residential pr ~ect would be 270 new daily trips, 20 a,ro, peak hour trips, and 24 p,m, peak hour trips, The q -{p;;. March 15, 2005 Cupertino City Council EXHIBIT B ITEMS REMOVED FROM THE CONSENT CALENDAR (above) - None PUBLIC HEARINGS 9, Consider an appeal of the Planning Commission's approval of Application No, TM-2004- 05, Wayne Aozasa (CA Water Service), located on Greenleaf Dr., APN 326-33-107: (a) Tentative Map to subdivide a ,95-acre parcel into four lots ranging fÌ'om approximately 6,430 square' feet to 8,880 square feet, plus a remainder of 11,500 square feet. Community Development Director Steve Piasecki reviewed a PowerPoint presentation, and the City Clerk distributed a letter fÌ'om Cathy Helgerson dated February 14,2005, to the California Water Company raising concerns about potential contamination of the well. Cathy Helgerson spoke and distributed copies of her statement. She said that Cupertino citizens have submitted a petition with 78 names opposed to the Greenleaf Drive project. Helgerson said the project does not comply with California laws regarding water resources, that there is a potential for contamination, especially within 100 feet of the well, and that she believed an environmental impact review is necessary, Shawn Heffner, representing California Water Service, refelTed to a letter written in response to Ms, Helgerson's concerns. He said current regulations set forth guidelines for location of wells with respect to sewer and stonn drain lines, In this project, both the sewer and storm drain lines will be at least 50 feet away and are incompliance with the requirements of the California Department of Water Resources, He said the well itself is 715 deep, and the water table begins at 160 feet, and that all their wells are concrete sealed, He said the well is tested regularly, with full testing every 3 years, plus water sampling done every week. Jeannette Weber, Water Quality and Laboratory Manager for California Water Service, said that the compliance peIiod for organic and inorganic chemistry testing is every three years pursuant to the California Water Code, and other federal regulations require radiological testing every four years. David Lee, an attorney representing California Water and NOlihern California Developments, said the applicant could relocate the trees instead of removing them, although they are disfavored trees, such as eucalyptus and pines, He discussed the landscaped island that had been added to the entrance in order to angle the traffic, and he said they believe the wrought iron fence around the well area would provide sufficient security. ."'. March 15,2005 Cupertino City Council Page 4 Leo Wang expressed concern about the possible contamination of the well because it provides drinking water for many Cupertino residents. He showed a copy of California Water Well Standards from the Department of Water Resourcès that indicates there should be at least 50 feet between a well and possible sources of contamination. Arlett Kerley, Santa Clara County Department of Environmental Health, said that her agency had reviewed the project and had no concerns, Penny Whittaker asked how many households were serviced by the well, how old are the wells, and what proof is there that the water will not become contaminated by vehicle traffic or chemicals used in the homes. Virginia Tamblyn said she is a real estate agent, and has had a listing on Homestead road that was next door to a well. She said it was on a fenced lot surrounded by a lot of trees, and there was some noise ÍÌom the equipment. The existing neighbors did not mind it. Council members discussed whether an independent assessment of water quality was advisable, since the water company had a financial interest in the project. In response to concerns raised by the City Council, Community Development Director Steve Piasecki said that staff would contact the Public Utilities Commission and other agencies for a referral to an expert third party to conduct an independent evaluation of this project and its potential impact on water quality. He said that the costs would be borne by the applicant. He suggested that this item be removed from the agenda at this time and would be advertised again when the independent review was completed, Lowenthal/James moved and seconded to table this item, The motion carried unanimously, UNFINISHED BUSINESS 10. Consider the trail alignment, picnic ground capacity, fund balance t schedule for Stevens Creek Corridor Park. Rhoda Fry said she didn't think the munity was given sufficient notice about the decision on the trail alignment. S aid that although the community has been working on it for years, this seems to be 11 th hour change. sho a PowerPoint slide show that y of the presentation, Parks and Recreation Director Therese Smith highlighted the staff report and distributed a pho Alex Tsai said he had cerns about security, noise and privacy. He asked the Council to consider impac n the neighborhood, and he suggested reducing the number of bridges. Coun' member Lowenthal said that one of the major reasons to change the park opera!' as to do with Mr. Tsai's home, and in order to separate free areas from EXHIBIT C s[R) October 10, 2005 Mr. Gary Chao Associate Planner City of Cupertino 10300 Torre A venue Cupertino, CA 95014 Subject: Well Sampling Results Water Quality and Impact from Subdivision Construction Greenleaf Drive, Cupertino, California Dear Mr, Chao: On behalf ofthe City of Cupertino (City), and pursuant to SLR Interna1ional Corp's (SLR's) May 6, 2005 Proposal for Evaluation of Water Quality Impacts from Subdivision Construction, The Source Group, Inc. (SGl) has sampled the production well located near the Greenleaf Subdivision (Figure I), The work included preliminary da1a collection and analysis of water trom the production well, The purpose of the well sampling was to detennine if new construction activities assoCÌa1ed with the Greenleaf Subdivision may impact the production well, in part by identitying chemical concentrations currendy present in the groundwater. The results of 1his sampling are presented herein. De1ails of the well sampling event are presented below, and a brief discussion of potential impacts is also provided, ACTIVITIES PERFORMED As oudined in the proposal, the following tasks were completed, Task 1 - Review of Preliminarv Data Prior to well sampling, the production well log was reviewed, focusing on the construction details and screened interval. The screened interval is the depth at which the well is in direct contact with groundwater, Groundwa1er is present in the well at approximately 700 feet below ground surface (ft bgs), Current groundwater quality for the aquifer used for potable water meets domestic use standards in the area. Groundwater plumes containing potentially hazardous chemicals are not known 10 be present in the immediate vicinity of the proposed subdivision or the production well. 5GI: 3451-C Vincent Road Pleasant Hill, California 94523 Telephone: (925) 944-2856 5LR: 117 Burgundy Court Martinez, California 94553 Telephone: (925) 229-1411 Report_v2.doc Mr. Gary Chao October 10, 2005 Page 2 of 5 Task 2 - Well Sampling and Analvsis On September 8, 2005, SOl mobilized to the site to sample the production well. Water samples were collected, capped securely, and placed into a cooler with ice, and shipped under chain-of-custody via Federal Express to BC Labora1ories of Bakersfield, California, SOl requested the following analyses: :¡.. Volatile Organic Compounds (VOCs) by EPA Method 524.2; :¡.. Semivolatile Organic Compounds (SVOCs) by EPA Method 525; :¡.. Trace Metals by EPA Method 200,8; :¡.. Anions and Cations by EP A Me1hod 300; and :¡.. Perchlorate by EP A Method 3 I 4, During transit, the sample bottles required for the SVOC analysis were broken, For this reason, SGI mobilized to the site again on September 28, 2005 and collected an additional water sample for analysis, The sample was shipped under chain-of-custody via Federal Express 10 BC Laboratories, and analyzed for SVOCs. These analyses are typical of potable water supplies. All potable water supplies undergo regular sampling and analysis 10 ensure that water quality is maintained for public consumption, These sampling and analysis requirements are based on the Safe Drinking Water Protection Act, and specific analytical tests are used to meet these requirements, The analytical program for this water sample was designed to be consis1ent with the analyses that these potable water suppliers mus1 conduct on their water, including the drinking water provided 10 1he City of Cupertino. The analytical methods used were developed by 1he U.S, Environmental Pro1ec1ion Agency to be in compliance wi1h the Act, and are the same tests that are regularly conducted on supplies of tap water within the County, To ensure this was the case, SLR contacted James Scott, the laboratory manager of 1he Santa Clara Valley Water District (SCVWD), to discuss their required analytical program for 1he drinking water 1hey control. All analytical tests run on the water are the same as those required by the regulatory agency for analysis of drinking water supplies. Each analytical test targets specific compounds, and the lower limit at which their presence can be detected in a sample is known as the detection limil. It is desirable for the detec1ion limit to be below the level at which a chemical may cause toxicity. These levels are known as "action levels", In this way, the absence of a de1ected concentration in a sample, or a de1ec1ed result thaI is below the action level, indicates that the chemical does not present any potential concern to human health, The same detection limits required for the water samples collected by the District were applied to the sample from the production well, Therefore, this analysis mirrors the analytical testing requirements for Cal Water under Santa Clara Valley Regional Water District jurisdiction, All details of sampling and analysis are summarized in the official test methods for these analyses, which are available through the United States Environmental Protection Agency website, LABORATORY RESULTS AND INTERPRETATIONS Table I presents the labora10ry analytical results from the production well sampling on September 8 and 28,2005, The labora10ry analytical report is presen1ed in Attachmen1 A. No VOCs were reported in the water sample. Mr. Gary Chao October 10, 2005 Page 3 of 5 Metals Four metals were detec1ed, copper (6,1 micrograms per liter, or parts per billion; ppb), nickel (2,9 ppb), vanadium (6,5 ppb), and zinc (18 ppb), All detected concentrations were well below their respective action levels, The action levels used in this assessment are human health toxicity based values designed to be protective for domestic groundwater use, They are generally State of California Maximum Contaminant Levels (MCLs) or USEPA MCLs as summarized on Table I. All four of the detected me1als are non cancer chemicals, and are not considered to have any carcinogenic activity by USEP A or the State of California. Therefore, by definition they have threshold levels below which toxic effects are not expected, Concentrations below threshold levels for these me1als are associated with no risk to human heal1h, The detected concentra1ions are well below 1hese threshold concentrations. These metals are lypically present at low levels in domestic water supplies due 10 their natural occurrence in soil and their relatively high water solubilily relative to other metals. According to information from the Agency for Toxic Substances and Disease Registry, typical background concentrations of copper in drinking water supplies across the counly range between a few parts per billion and 10 parts per million, The de1ected copper concentration in this sample was on the low end of the reported range for public water supplies, For nickel, the average concentration in uncon1aminated drinking water ranges between 2 and 4 ppb; we found 2,9 ppb in our sample. For vanadium, drinking wa1er concentrations are variable depending on the regional geology, Typical background levels range between 0.3 and 100 ppb; we detected 6.5 ppb in our sample. Lastly, lypical background drinking water concentrations for zinc range between 10 to 100 ppb; 18 ppb was reported in our sample, SVOCs Four SVOCs were detected in the sample, bUlylbenzylphthalate (5,1 ppb), delIa-BHC (0,03 I ppb), di(2- e1hylhexyl)adipate (0,10 ppb), and me1hoxychlor (0.039 ppb), These are all compounds known to have only noncarcinogenic effects, All four compounds were also detected in the method blank sample, indicating thaI 1hese chemicals are likely not presen1 in the wa1er, but instead represent contamina1ion from the laboratory, BUlylbenzylphthalate is a lypicallaboratory contaminant. Di(2-ethylhexyl)adipate is used in making plas1ics, and is also used as a solvent. Della-BHC and me1hoxychlor are pesticides, No1 only were these three latter chemicals detected in 1he method blank, they were also detected at a concentration below which the analytical instrument can provide an accurate measurement. These concentrations are called "J-qualified", which means they represen1 estimated rather than exact values. The J-qualified concentrations are all well below their respective action levels, Therefore, even if these four chemicals are actually present in the groundwater, they are present below concentrations that can affect human heal1h, General Chemistry Detected values were reported for most of the general chemis1ry parameters, Chemicals with action levels that were detected in the water included chloride, nitrate, sulfate, and three physical parameters (pH, conductivity, and total dissolved solids), These parame1ers are lypically detected in public water supplies due to their ubiquitous presence in water. The chemicals were detected at concentrations below their action levels, Perchlorate was no1 detected in the sample at a detection limit of 4 ppb (below 1he action level of 6 ppb), Therefore, chemicals and physical parameters are present at levels within acceptable limits for safe domestic use of well water. Mr. Gary Chao October 10, 2005 Page 4 of 5 Based on the evaluation of well construction details, historical data, and recently collected data from the produC1ion well, the well is no1 currently impac1ed by any site-specific or regional ac1ivi1ies, QVALIT A TIVE RISK EV ALVA TION The proposed subdivision will include addition of three homes, and a paved cul-de-sac, A water line from the existing street will be extended to the new homes, which will be at a depth of approximately 5 ft bgs. The new water and storm drain lines from the subdivision are required by the SCVWD to be no closer than 50 feet to any existing well facility, This requiremen1 is to ensure that any construction activities associated with new piping will not impact the well facility, either with regard to chemical releases, accidents, or other activities, Certain activi1ies require a 100 foot setback to meet these goals, including septic tanks and animal enclosures, Therefore, the SVCWD assumes that these will distances preclude contaminants spilled on the surface from reaching 1he screened zone of any water well. There are several intervening aquifer layers belween the ground surface and the productive zone in the Santa Clara Valley. A zone of silt and clay exists just below the surface to the first encountered groundwater (typically less than 20 feet bgs), Below 1his groundwater layer is another layer of soil, primarily clay and silt, and below that is another groundwater zone. The local water well is not screened in either of 1hese lwO aquifer zones, so any contaminan1s released from construction activities or from the residences would need to pass through multiple layers of soil and groundwater. Based on our extensive experience with subsurface contamination, disturbance of local soil or shallow groundwater due to construction and wa1er piping aC1ivities will be contained within the first encoun1ered groundwater, and is likely to be largely suspended matter due to the invasive soil activities, No impac1s are expec1ed to any deeper soil or groundwater zone, including the zone in which the production well is screened, This conclusion may be more readily understood through use of an analogy to the sandwich layers seen in the subsurface. Groundwa1er can be considered to represent a layer of free-flowing water beneath 1he ground, which we can relate to a large puddle of wa1er, Bo1h above and below the puddle are sponges, which are wet to varying degrees, Soil represents a sponge, which holds onto much of the contaminants released into the environment. Soil has pores where water resides, and a capacity to hold water that is related to the soil type, The dryer the sponge is, the lower is the likelihood that anyIhing spilled on top of the sponge would diffuse through the sponge and reach the water. RighI above the wa1er, the sponge will be wet, which helps chemicals move downward. If we assume that a spill of contaminants occurs on the surface, it will infiltrate the top sponge to some degree, and if there is enough of a source, some of the material may diffuse through the sponge and reach the water, Once ma1erial reaches the first puddle, it will diffuse into the puddle and mix in the water. A very small amount of that material may contact 1he sponge beneath the puddle and stick to that lower sponge, If 1he lower sponge is very we1, some may even diffuse downward in10 the sponge. However, 1he very small amoun1 1hat may reach this lower sponge would be bound up in the sponge, and would have no ability to move further downward through the sponge to deeper puddles because the amoun1 diffusing from the first puddle is insufficient to result in a chemical passing completely through the second sponge, Because in reality the sponges are soil layers, they cannot be squeezed into releasing additional water. There is no other way for the chemicals in the soil to reach deeper layers, Future activities will cause shallow soil disturbances, As described above, however, these aC1ivities have no potential to affect the water in the production well, Other changes following development may include increased traffic and noise associated with the additional homes, Chemicals released from the exhaust of Mr. Gary Chao October 10, 2005 Page 5 of 5 1hese vehicles will even1ually deposit on the ground surface, which will either be pavement, if on the street, or onto topsoil. In the fonner situation, chemicals on pavement will eventually runoff into the storm drain system and be removed from the environment. In the latter situation, the sponge analogy described above is relevant. Either way, there is no potential for these activities to impact the water well. Based on the da1a collected and analyzed from the groundwater well, as well as analysis of the proposed developmen1 plan, we conclude that there is no potential for activities associated with the new developmen1 to impact the wa1er well or result in any risk to human health, Please contact either of the undersigned with any ques1ions or comments regarding this project. Sincerely, The Sluree Group, Inc. SLR InternaDonal Corp 1fl~1/Jæ~ ~t,kø Matthew C, Sutton, P,E, Principal Engineer Mark E. Stelljes, Ph,D, Principal Toxicologist Attachments: Figure I - Site Location Map with Well Location Table 1 - Groundwater Analytical Results Attachment A - Laboratory Analytical Report ie..!. /. f' - --- '. '-'., I~_". '1\. . rF, ~:jJ:~ï/~-'" '" t::\. ~ I ') '\ 't '-" I'·' --, I.. Q Hlg_L-ÓO , --..,..;... . .,. 'II N .' , '. .._... "T""" '----~;-., . .~ .. "\ '. 'i) ". lilt \, r; ,,' I . . . . ". . '" .' ".- - .' " . ...' Hb ." \ . ~ _ '.' ~~". ' :lc>I\~'_ß¿ .......... '< .~'.'. . ~ I." ,.l.t...;,.}F\, . :~, .'>. \ .'~" .>..... \. L ~. ··.t·· .~"" ;:I'~ @ .\. ~" ~"~'KII"')¿6,~~ · ~~':·.·':i>'~,' ..... .85, .... . " ....' '. .....,.~'. .... ...... :'.. .' .~. ". , . '7"'~ ....>.. '. ....... BMJCZ.,. '''i~~\.!> C\ K ~~~\.. >\ ;, I.' ,\ I~·· II..L.- '!'-' .' ...... ~".' .....".~.. '. '1/1 ~.' f'~ \:. <x,,-.. ' r~~,... \\~&. I~' .' ~\ ..... .;'-=': , . ~ .~~;:: I . }.~\> .:'mt.... ~~.;~, ~"X ': '.' .¡ " .. ..1 \. .~': c.~.. VI.c;. .'" . O· ~ ./ .... ,I . j \ ~,\.. ". . . II . .. I · I .,. 1\ . ", II fl.·.·.· :'.~ ~~~ . ': \ ..' ,\ ',;, .'\ ·.h. ....... ~à,'., \1\4 '-. . j~~~ ~::~ 2'. ~.'."\" '.~ ~~.".' ....j(. ;"'\ . , '.:;;:.. - \, . Ie \ Faria't . ". ':: ·V,'·. W\ .,., \l .' .'.,. . .' .... Sch!.J "': . ..... . .' ··c' . ,', N - \ 11 . , \. " \' . .... -, '. .' , ~\\\\ !:.Lí;~.' \ ~L": "'. I I ~.. "" LEGEND " , ® OOMESTIC WELL SCALE: SGI THE .",'room..'" SOURCE GROUP, INC. --- ,., ..... I SITE LOGA TlON MAP I WITH WELL LOGA TION . 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No. 10 0.1121/04 Page ) O~ 1- 05..~~JCjš I Project Code: I TB Batch # t Submission It: SHIPPING INFORMATION := SHIPPING CONTAINER , federal Express ~ UPS 0 Hand Oelivery 0 Ice Chesl~ None 0 , BC lab Field Service 0 Other 0 (Specify' 60K 0 Other 0 ISpecify) - Refrigerant: Ice ø:.- Blue Ice 0 None 0 Other 0 Comments: --' C~stodv sea!stce Chest 0 :J I Containers D'J Non~ Comments: Intaçl? Ves 0 No 0 Intact? Ves 0 No j AN samptes received? Yes~ NoO An samples containers intact? Yes. NoD Descriptlonlsl match COC?Ves~ No 0 eoe Received Ice Chest JD Emissivity -.:&- OatelTime q-q--1'J;:;- ~ES 0 NO Temperature: T,'JIr 'C Container ¡VI 1\ \D' Analyst toil ~ ......A< SAMPlE CONTAINERS . 2 J 4 5 . 7 . , .. Q1 GENERAL MINERAl/ GENERAL PHYSICAL ...... f"T PE \lNPRESERVEÐ nT INORGANIC CHEMICAL METALS PT INORGANIC CHEMICAL METALS C- PT CYANIDE PT NITROGEN FORMS PT TOTAL SULFIDE 20L NITRATE I NITRITE 10ChA1 TOTAL ORGANIC CARBON OT TOX PT CHEMICAL OXYGEN DEMAND - PtA PHENOLICS 40ml VOA VIAL TRA VEL BLANK ~tl'\ 40..1 VOA VIAL c.. ,~ , , , , , , , , , , , , , , . - OT EPA 413.1 413.2 "18.1 PT OOOR RADIOLOGICAL BACTERIOLOGICAL 40 ml VOA VIA l- 504 r\Y EP A SQ81608/IJ086 nT ErA 515.111150 OT ErA 515 lu:: nT ErA 525 TRA VEL BLANK 10ChAI EPA 541 100..1 ErA 531.1 ftT ErA 548 nT ErA 549 - nT EPA 631 nT EPA 80151\"1 OT OAIOC - OT AMBER 802.. JAR 32 OZ. JAR SOJLSLE[VE PCB VIAL PLASTIC BAG FERROUS mON ENCORE Comments: S,.., _, . ,_~c: ...... . ..1 ...~ ..-.. -¡ -,- 10."-. ;" :..,L...1. ,",-\1'4! 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DateHime: ~/.3f JoZ / IH ;IOOCS\wP80Il AS _ OOCSlfORM$\S AMR£ Cl. WPO I Gary Chao From: Sent: To: Subject: Shaw,Charlene@epamail.epa,gov Thursday, April 21, 2005 3:40 AM Gary Chao RE: Information for Drinking Water Testing Gary, David Spath is Eric Lacy's boss, so he probably doesn't have anything to add to this, When I talked to Dr, Spath, he sent an email to Eric and Eric responded that he had been involved with her and gave us a summary of what he thought after his investigation, We do have an EPA office in San Francisco. Corrine Li is our Branch Chief and I sent her the same information about my conversation with Ms Helgerson. She and Dr, Spath have talked about the issue and agree with Eric Lacy's conclusions. We in Headquarters are satisfied with their evaluation. If you want to speak to Corrine Li her number is (415) 972-3560 or you can speak to Marvin Young at (415) 972-3561. He may be easier to reach, Hope this helps. Charlene E. Shaw Outreach Team Leader Office of Ground Water and Drinking Water (4606M) 1200 Pennsylvania Avenue NW Washington, DC 20460 (202) 564-4635 FAX (202) 564-3757 Delivery Address for Courier or Overnight Delivery: 1201 Constitution Avenue NW Washington, DC 20004 Those who say it cannot be done should not interrupt the people doing it, (Chinese proverb) Gary Chao <GaryC@cupertino .erg> To 04/20/2005 06:41 PM Charlene Shaw/DC/USEPA/US@EPA cc Subject RE: Information for Drinking Water Testing Sharlene I Thx for your reply, I did talk to Eric Lacy already and he has no concerns on the project. You mentioned that David Spath is the State's 1 HXIUBIT D Water officer? Do you have J contact info by any chance? .lave also talked do Mr, Stephen Hill from the SF Water Quality Control Board - he also has no concerns on the project. What is the Region 9 office of SF? Is that EPA? Thx, Gary -----Original Message----- From: Shaw.Charlene@epamail.epa.gov [mailto:Shaw,Charlene@epamail.epa,gov] Sent: Monday, April 18, 2005 11:24 AM To: Gary Chao Subject: Information for Drinking Water Testing Gary, I have spoken to Ms. Helgerson several times and she gets very angry with me because we can not help her. I wrote to our Region 9 office in San Francisco and to Dr. David Spath in California's drinking water office, Both of them said they had tried to explain the situation to her, but she seems to think that EPA can step in and either test her water or use her family as a research project for perchlorate. We currently are not regulating perchlorate in drinking water, but the State of California is regulating it, Therefore, if the water meets the state standard, there is no violation in the state's eyes and certainly not at the federal level, This is the website that links to our state certification page: http://www,epa,gov/safewater/labs/index,html#c This is the state page with information on certified laboratories: http://www.dhs.ca.gov/ps/ls/elap/default.htm Ms. Helgerson has spoken to Eric Lacy in the State of California's Division of Drinking Water and Environmental Management. Hope this all helps, Charlene E, Shaw Outreach Team Leader Office of Ground Water and Drinking Water (4606M) 1200 Pennsylvania Avenue NW Washington, DC 20460 (202) 564-4635 FAX (202) 564-3757 Delivery Address for Courier or Overnight Delivery: 1201 constitution Avenue NW Washington, DC 20004 Those who say it cannot be done should not interrupt the people doing it, (Chinese proverb) 2 E IBI œ lobg!os \\eM 4Þ~ City of Cupertino Attn: City Clerks Office October 14, 2005 This letter is a submitted to your office to request a continuance for appeal to the Planning Commission's approval of Application No. TM 2004-05, Wayne Aozasa (CA Water Service), located at Greenleaf Drive, APN 326-33-107, (This item was continued from October 4). The request for continuance will give everyone concerned adequate time to review the lab findings and summary provided to appeal parties and City Council members. It has also been mentioned by appeal parties that have further concerns about levels set under the State and Federal levels which may cause toxic contamination. These concerns are related to lower levels of contamination and the combining of these chemical and their toll on hwnans over years of exposure. Appeal parties have also asked the City to consider an ordnance proposal that would provide a 100 ft. safety shield no build around our well. According to the Department of Water Resources who make and enforce the Water Well Standards it is up to the City or the County of Santa Clara to set in motion and ordnance that could further protect our water. The Office of Assemblywomen Sally Lieber has also been contacted and letters written to support this safety shield around wells that have no houses or building construction. This matter maybe addressed in future legislation and this should be a consideration when the City wishes to make its decision. The security around our Well is of great concern to the Appeal parties and to the Citizens of Cupertino and should be considered as well. We wish to have a high security status around our Well and 5 feet away from the street is not acceptable. The fact that the City is allowing a private Association to handle the property and oversea the sewer and storm drains also not acceptable to the Appeal parties and the Citizens of Cupertino. The City's Sanitation Department has mentioned to me they will not be overseeing the property sewer and storm drains because it is private property. The City Council needs to consider the problems that this would cause. In trusting this private Association to oversee the sewer lines and storm drains on this property at their own expense could be very costly this high cost could cause problems with delays in repairs of damage to the systems. The houses that have the sewer and storm drains behind them in a 5 ft. setback are at the most risk and we feel this is not acceptable because of the possibility of further contamination from individuals. This 5 ft. yard will be used by the occupant and may damage the sewer lines and storm drains. The sewer and storm drains can not be put in front of these houses because of the 50 ft. setback required by the DWR -e Standard. This whole building project needs to be overturned and our water quality preserved. I would like to setup a review of some impartial authority that could review the finding of this report for we are still very concerned that low level and chemical mixes cause toxic acceleration to hwnans. The report does not state the tests that were conducted to reach action levels set presumably by the State and Federal Governments. It also does not state if there were tests done when where these tests conducted. How do we know and what proof do we have regarding the levels ofhwnan contamination? It is up to our City, State and Federal Governments to protect the Citizens and so we want to absolutely sure that our water is safe. I would like to make the City Council members aware of one other thing the Bay Area Air Quality Board is also looking at Apple Computer right next door to this building project. I have requested that they look at any possible Air Quality problems that Apple Computer maybe causing at this location and they are writing a letter to Apple Computer asking for all of the Chemicals and metals that are used in their products. The hydrogen tank that is on site is used to cool down their products and this hydrogen combined with possible leads and chemicals could be causing toxic air emissions. These air emissions could be causing water, air and soil contamination. I have been told that meetings will be setup to review the findings of the tests and I will attend these meetings. I ask the City to consider the problems of any construction on this property. I understand the next City Council meeting will take place on November 1st 2Q05 and that these matters could be moved to that meeting. Please confirm this continuation request by phone and respond in letter form as well. Thanks Cathy Helgerson 408-253-0490