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11. Greenleaf Drive appeal City of Cupertino 10300 Torre Avenue Cupertino, CA 95014 (408) 777-3308 Fax: (408) 777-3333 CITY CUPERJINO Community Development Department Summary Agenda Item No.l.L Agenda Date: November 1, 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 18, 2005) 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 The City Council continued the project at its October 18, 2005 meeting at the request of the appellant, Cathy Helgerson. Mrs. Helgerson submitted a letter to the Council at the meeting and the content of the letter is summarized in this staff report. DISCUSSION Mrs. Helgerson raised the following issues in her letter dated October 14, 2005: >- Additional time be given for her to review the water quality report Response: The meeting was continued from October 18, 2005 to November 1, 2005 to allow Mrs. Helgerson additional time to review the staff report and the [(~I TM-20004-05 Page 2 Greenleaf Subdivision November 1, 2005 water quality report. ~ The appeal parties have concerns on the water quality standards set forth by the State and Federal agencies. Resvonse: The City and relevant water agencies do not have the authority to change or modify the water quality standards set forth by the State and Federal governments. >- The appeal parties are requesting that the City consider an Ordinance amendment that requires a lOO-foot safety shield around all water wells. Response: The relevant water agencies (California Water Service, San Jose Water Company and Santa Clara Valley Water District) are responsible for reviewing and enforcing the State or Federal Government guidelines. According to the Santa Clara Valley Water District's (SCVWD), low impact activities such as homes and any standard utilities such as sewer and water lines serving residential dwellings are allowed are within fifty feet of the well facility. Both the SCVWD and the Cupertino Sanitary District have reviewed the project and confirmed that they have no concerns with the proposed development. ~ The appeal parties are concerned with the security of the existing water well site and the fact that the well site is five feet away from the proposed private road. Response: The remaining water well site will be fully enclosed by a new wrought iron fence. Additional landscaping buffers are required to be planted between the new fencing and the new sidewalk/roadway. According to the Public Health Security and bioterrorism Response Act of 2002, water utility agencies must reassess and where necessary improve security measures at their water facilities. Staff is asking the California Water Service to address the City Council regarding this issue at the public hearing. ~ The fact that the City is allowing a private association to handle the property and oversea the sewer and storm drains are unacceptable. The houses that have sewer and storm drains approximately 5 foot setback behind them are at the most risk. Response: The applicable rules to this project are consistent to that of any single- family residential homes in the City of Cupertino. Cupertino Sanitary District, Cal Water Company and City of Cupertino Building & Public Works Deparhnents will review the proposed utility plans and monitor the construction of the development to ensure compliance with sewer and water regulations and local plumbing codes. The Cupertino Sanitary District will review and permit all ((-z TM-20004-05 Page 2. Greenleaf Subdivision November 1, 2005 sewer connections associated with this project. The City of Cupertino Building Department will review and permit all onsite facilities. » The appellant would also like to have an impartial authority review the findings of the water quality report. The report does not state the tests that were conducted to reach action levels set presumably by the State and Federal Goverrunents. Response: SRL International and the Source Group were retained to perform additional water quality assessment and analyze the project for any potential water impact in response to the appellant's concerns on the objectivity of the data and information provided by the Water Agency responsible for this project (California Water Service). According to SRL and the Source Group, the water quality assessment for the project was based on the Safe Drinking Water Protection Act. The type of water analysis, the testing procedures and analytical methods used were all consistent with the guidelines set forth by the U.s. Envirorunental Protection Agency and confirmed by representatives of the Santa Clara Valley Water District. » The appellant would like to make the Council aware that the Bay Area Air Quality Board (BAAQB) is looking at Apple Computer next door to the project site. The appellant has requested that the BAAQB look at any possible air quality problems that Apple Computer may be causing at this location. The appellant claims that the potential toxic air emissions could be causing water, air and soil contamination. Response: This concern relating to another adjacent property is not relevant to the approval of the proposed residential subdivision project. ENCLOSURES Exhibit A: City Council Staff Report, October 18, 2005 (wi attachments) Exhibit B: Appellant's letter of concern, October 14, 2005 Exhibit C: Subdivision Plan : Gary Chao, Associate Planner Steve Piasec i Director, Community Development ~b:: David W. Knapp City Manager {(-3 œ ~ollglo5 f\e¡.A 4F-o 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 humans 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 concem 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 II-~ 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 fmding of this report for we are still very concerned that low level and chemical mixes cause toxic acceleration to humans. 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 of human contamination? It is up to our City, State and Federal Govemments 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 wa~r, 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 1 st 2005 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 ll-) City of Cupertino 10300 Torre Avenue Cupertino, CA 95014 (408) 777-3308 Fax: (408) 777-3333 CITY F CUPERJINO 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 {( -f.ß TM-2004-0S 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 Oualih¡ Samplinz 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 water! storm drain! 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. Il-l TM-2004-05 Greenleaf Subdivision October 18, 2005 Page 3 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 Çlre 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 and/ or 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 C). Other Related Water Agency Feedbacks Staff contacted representatives of the Envirorunental 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 Envirorunental Protection Agency, dated April 21, 2005. Prepared by: Gary Chao, Associate Planner /l- ò TM-2004-05 PageLl Submitted b Greenleaf Subdivision Approved by: fÞL David W. Knapp City Manager Steve ecki Director, Community Development October 18, 2005 I(-~ EXHIBIT A City of Cupertino 10300 Torre Avenue Cupertino, CA 95014 (408) 777-3308 Fax: (408) 777-3333 OF CUPERJINO Community Development Department Summary Agenda Item No.:I Agenda Date: March 15, 2005 Application: TM-2004-05 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: OfficejlndustrialjCommercialjResidential 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- 05, 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. ll- (0 TM-20004-05 Pag(> 2 Greenleaf Subdivision March 15, 2005 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. 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 ingress! 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 Rl 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 t(~( \ 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 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 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 existing 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. It ~( Å- TM-20004-05 Greenleaf Subdivision March 15, 2005 Page 4 Considering Factors When reviewing a subdivision proposal, the project is forwarded to all pertinent departments! 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 (w / 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 I [V by David W. Knapp City Manager Steve Piasec i Director, Community Development /l ~('3 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. £) 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. {\~(l{ 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, CAn 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 access/pedestrian 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 sidewalk/ 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 Commumty 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. 8. RETAINED PARCEL MAlNTANANCE The applicant shall record a covenant and deed restriction runmng 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, and/ or equivalent agencies) will be required as a condition of approval prior to issuance of building permits. 11. 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 design 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. {(-(1 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 and/ or Regional Water Quality Control Board as appropriate. 20. DRAINAGE Drainage shall be provided to the satisfaction of the City Engineer. Pre and Post- develovment 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 ** {(~(r Resolution No. 6284 Page (, 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. DEDICA nON 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. I( c-( 9 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 Resolutiòn conform to generally accepted engineering practices. / s/ Ralph Oualls 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: / s/ Steve Piasecki Steve Piasecki Director of Community Development /s/ Gilbert Wong Gilbert Wong, Chairperson Cupertino Planning Commission /1~Ló 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. RECOMMEND A nON: 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: Office! Industrial! Commercial! Residential P(CG, ML, RES 4-10) .547 5.5 du! 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 ingress! egress street /(-1-1 TM-2004-05 Page 2 January 25, 2005 (lot 4) in the middle. The proposed residentia110ts 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 R1 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 ll-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' association/Covenants, 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 It -;)L 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 ç--- Approved by: Steve Piasecki, Director of Community Development~--<-"L Enclosures: Model Resolution Preliminary Landscaping Plan Plan Set Ii - :L3 TM-2004-05 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 P ARcas 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. £) 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. 1(-2-"f ResoIution 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 access/pedestrian 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 sidewalk/ 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 l{-L) 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 thè 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. 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 developer must obtain written documentation from the Fire Devartment on the final design of the new road section. ((~U, Resolution No. Page 4 TM-2004-05 January 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! or Regional Water Quality Control Board as appropriate. 14. DRAINAGE Drainage shall be provided to the satisfaction of the City Engineer. Pre and Post- development calculations must be provided to indicate whether additional storm water control measures are to be installed. 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 /(-J-7 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. ¡(-JJ Resolution No. Page 6 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. Ralph Qualls, Director of Public Works City En",;ineer 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: COMMISSIONERS: COMMISSIONERS: COMMISSIONERS: COMMISSIONERS: ATTEST: APPROVED: Steve Piasecki Director of Community Development Taghi Saadati, Chairperson Cupertino Planning Commission I(~L~ Øl/27/2ØØ5 15:3Ø 4Ø87773366 ~llr U~ G~~~I~NU ,,...,,,...... ....... EXHIBIT C City of Cupertino 10300 Torre Avenue Cuptrlino, CA 95014 (408) 777-3223 rDJ rE t [E ~ \w [E fR1 Uù FEB - 1 2005 ~ CUPERTINO CITY CLERK MPEAL 2. Applicant(s): /M _ lAJO Lþ--05, U- 2d)IL ð~ It5'IJ - 2/00 r¡..-O «-/..1 / :r_.. / -::7ffA./ 302 C -j,j - C~v<'f~ µd~ 1- !ß-"'f-:r'(~ Lu~"7 (]. ·n d iceM.- W~ 20(,17 D~ ? G~DíI. C,-,-, . . ~ 9S;ó It 1. AppJication No. 3. Appel1aJlt(s): name, address, phone number 4. Decision of Director ofCommul1ity Dev910pment Decision of Planning Cómmi~~iCJn X (please eheck one) 5. Date of determination of Director or mailing of notice of City decision: 1-2-~- oS 6. ~n_~~S Basisofappea.1: ~/ .. ~~ I] W~ Wu.JL - LV . W~ ~ +- ~ cfo ~cZ.. r; OA-Ld- ~þ!<~0 CMAsî~ . ,,) ~í'ð?-<Á ~ +-1-. "'5 "Õ ·37 í'lJ2f2- " · 3) ÞT~ ~ ~ ~ L'u~ ~c.G ?~ 1v" ~~ CfvI- ~~ D/', ~~ . lu~n Please complete form, include IIppeal fee of$£i.£. ãñd r=tum to the attention of the City Clerk Signaturc(s) ;\~I(\I:I'pJck !onnl.d.cc Ì(~ ]ò , 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 individualslterrorists 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 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. Cathy & Dale Helgerson - Neighbor Address: 20697 Dunbar Drive Residential APM# 326-33-038 Property next to Lot 3 Objections and Concerns are as follows: 1) Property is owned by CA Water Service Company and has a water well that 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 the 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 from that they would not sell the property for at least 100 years unfortunately that has all changed. I would like to know if there 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 from 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 the residents of our city safe from 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 the water company and lots I, 2, & 3 are lots planned for two story home development. I feel that these homes will be in close quarters and that the space allowed is not enough. There is also lot 4 that would include a road. tl~J;L 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 from 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 from God and nature and should be preserved by all for all to see. 5) The noise nom 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 from this building project which would cause my family harm for we suffer from 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 from 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 1l~33 City of Cupertino uepartment of Community Developmeüc 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 PUDLIC 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 8,880 square feet, plus a remainder of 11,500 square feet. Use Permit for four, two-story single-family residences in a planned development zoning àistrict. 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 TIME AND PLACE ALL PERSONS INTERESTED THEREIN MAY MATTER. THE AGENDA FOR THIS APPLICATION WILL BE 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. AVENUE, CUPERTINO, AT WHICH APPE1L'R- Þ-.ND BE HEÞ.P.D ON SJ:tID AVAILABLE ON THE FRIDAY 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 Î( ~ 1'1 A Guide For The Private Well Owner " ".:;", _ ' I,. ,'': ,- ,_ I '..: ",.:_:"(,~ ".... ,. ,'':I-\,_,'':l_"~:,_,,,,:;.. -.- I ~,:"..,.. _,'_: I ...,1 ',:...-¡'_.:-,I' ~,"_I..; ...,-""_:,1 .. ,_I ',.. -.1'-:', ... ';;..".... - ;,....;..:. :':1. _' -{ .- ,', '-:':, _' -{ F' ,', ,- :':, -' -{ .' ,', '-:':, ,-:, /, '-:':, .: -{ , ,'~ ;-_,_\.;........,.. ',ë- \........, ,..-:.,. ,,,.;.... 1';..._\:.....\-........, ',_._\ -....~;-'.' t'::, " i:~jt};~l)~~~~~i,w~~~t~fJ~i~}, \..,::;' ?,..., ':;',-,_" ~._" "~,r\ Sonro Oaro Volley Wder Dis'uid 6 ð!b Counly of S.nt. Clara 1:>.0_' ..h.k__..... .._"~ I(~JJ A Guide For The Private Well Owner TABLE OF CONTENTS Water Quality Protection Water Quality Sampling and Treatment Resource Guide Introduction Well Owner Responsibilities Well Construction and Well Maintenance I( ~ 3L Introduction Tbj, pampblct i, inlenðed to make ¡¡riwte well owner.;bip a little easier. It is designed to: · Alert ¡Ovate Wen owner.; to the potenti3l for cont<>tnin<!ltinn and the need for water- quality ""ling; · I:ntroduce weD owners to the basics of proper well comlIUCtiOll, datroclÌOD and main_ · Inform well owners of their responsibilities in San" CIaJa County. Nearly baIf of all water 1ß<d in Santa CIaJa County can'" from beloW the valley Door, where laye.. oJ. sand and gravel provide a natural sloolge basin for water in nnde¡ground aquifers. In addition to being an extraontinary storage fucility, the gronndwaler basin also serves as an incxpemive and efficient treaDDeDt and distribution sys1m1: as water percolates down, it is natnrally porified and spæads ont foc miles to serve a wide area. The Ihonsands of water soppIy wells thai dmw water from the county's groundwater basins have tr.Iditionally produ<ed very high quality drinking watet. In recent years, however.. 01D' drinking water aquifers have beenllneaten<d by toxic chemicals from industrial spiUs, DEB' DRINKING """tEl AQUHR leaking onderv;round storage tanks, and agricuItor2l app6cations. as well as biological pa1bogcns from sewers. septic 5)'5tems and animal fdOes. These cont:nninants can find their way through the .- prota:tivelayen of day and silt and into our drinking wa1c:r aquifer.;. This ¡robItm can be euspetaled by the presence of improperly comtrocled wells, abaDdoned -wells, or wells localcd too near a potential conlaJIlinant soon:< IiIœ a septic system. These wells can act as vertical pathways. allowing cbemica1s and paIhogem on the surface or in shaDow aquifers. to migrate into oor deep drinking water aquifers. To help cœlrol and prevent the conramiDation of oor groundwaJ<r storage basins and to protect public bealth. we need the coopetation of private weO owners. We have prodnced this paropblot to belp you belp us prota:t oor grouodwakr rcsowces and yam health. This paropblet is mean! only as a guide for weO OWJ]CB. We do not claim tha1 the fe('rwn...-nti!ltiœs made in this document will wed. in every situation. Nor do we claim to have covered every possible scenario Of contaminanL Any refeæncc to trade names and companies docs not constiblte an endorsement SAND & GaAVEL II -']'7 Well Owner Responsibilities To proI<Ct pubtic health and to maintallt the high quality of W>IOr in our drinking w_ aqWfers, well owners are required to adhm to various stale and localla... ",laIing to wells. In general, wellowoers arc requ.ircd to: . Obtallt pcmú'" from the Santa a.ra. Valley Water District (District), befon: any well comtructioo.. destroction. or modificatioo. . Complete any well construction, destruction, or modification accmding to District and State WeD Standards. Wells must be consbUCled '" that they do 001 allow poor quality surliu:e water or wafer from sballow aquifcrs to migra1e into drinking walei' "'!"ifers. The", are speciñc well COOSbUCûon pracrices thai must be followed to CDsure that weils are constructed properly. Noœ: øll well COlJltrødiollp destruction, or rnodifit:aIioI' _s _". comp/<te4 by. COS7 liœnsed cøn_ . Regis'"' all weDs with the DistricL . Obtain water system clearance from the Saota a.ra. County Department of Environmental Hcal1h before a well is used for drinking water purposes. . Properly mainIain !he wen so that ãt remains in ctmpliance with the D~trict and State Well Standards. Wells must be maintained so that they do not allow the _ûoo of surface waters or other materials into them through improperly seakd well casmg. or gnwel fillIsouoding ..be~ WeDs ínust be sccnred so tha1 childæD or animals cannot enter them. . Fde Water Production Stat=euts to tepurl to the District the amount of water that was produ=llium the well, if the well is located within one of !he District Board defined Groondwa1cr Charge Zones. . Properly destroy any wells tha1 aIC oot being used. When DO longer in use, wells must be destroyed so thaI they can :DC\'U act as vertical condnits or endanger public bealth. Geœ1a1Iy, wells must be completely filled with impervious scaling ma!crials. For more infonnation on your responsibilities as a well owner. amtact the District's WeDs and Water ProdŒÛoo Unit at (408)265-26(1). extension 2660 or visit the Disttict's web site at http://wwW.beynoab.COm. /l<3'( Well Construction and \Nell Maintenance 'WElL CONSTRUCTION The typical domestic well in Santa CWa County is consttucted by drilling a hole in the ground to a depth of 100 to 300 feet. AA the well driller is drilling the hole, be/she notes the type and depth of materials that the bit posses through. This infonnatioo is recorded 00 the Driller Log that is submitted to the permitting agency and given to the bomeowf1er. The well is consttUCtcd once the dril1er finds layas of sand ()I" gravel. that produce enough water to meet tbe: well ownc:r's needs. 'These water producing layas are called aquifers. To construCt !:be well, the driller installs a length of plastic or steel pipe called the well casing into the hole. The well casing keeps the bole from collapsing and allows pumping equipment to be installed. By reguJatioo. the well casing must have a diameter at least four-inches smaller !ban the diameter of the hole. Where the bole inrenects the best water producing layas (the sand and gnlvel aquifers). the driller installs well casing wilh thin cuts or peñoratiom. This portioo of the well is called the well screeD. The well screen allows water to pass into the casing but keeps out sand and gravel. Where the hole interSeCtS layers of clay or fine silt Oayas !bat don't typically produce significant quantities of water). the driller installs un-perforated pipe called bIaDk easing. To keep fine sand. silt. and clay from entering the well screen, the driller instaIIs a sand and gnlvel mix called the filter pad< into the space between the casing and the bole. To protect the water quality in the deeper, drinking water aquifers from poor quality surface water and sballow aquifer water, the chiller also installs a concrete or cement seal (aDDuIar or sanitary seal) between the blank casing and the hole. In Santa Clara County, the minimum anrrular scal depth is 50 feet. The Santa Oara Valley Water District (District) wiU require a deeper annular seal if the well is to be installed in the valley floor (vs. mountainous regions) and may also require !bat specific clay layers be scaled off. Typical well scal depIbs are 150 feet in the na1h county and 100 feet in the ~th county. The annular seal extends to the swface of the ground where it is extended out to aeate a concrete pad will> the well casing extending out of the middle. of iL These surface featureS are called !be wellhead. At the we11bead, the casing extends at least one: foot above the ground sutface and is securely capped to prevent anything. including sutface water. from entering the well. The concrete pad is sloped away from the casing to protect the wen from damage and from surface water contamination. II ~]q WEll MAINTENANCE A poorly maintained well can lead to . variety of problems including poor water quality and reducûoos in the amount of water your well can prodoce. To miøimì7J: these potentW problems, a well mainten8l1CC progmn is an important part of a well awoa's responsibilities. Inspect Your Wellhead Get in the habit of doing a visual check on your well at least once a year. More often is better. See below tOl' some of die tbings to 1001< tOl'. ,..: .");::, :;~:,,-~\/J..¡..þ'~fq}¡;·., ,~,;,;~\iÆJi'" ". . ;~.J:i"" .0'''-'.' .;. > 'aGROUND _f·, ~:...~-;;..~:L ~,SLOPE .~-". ;;.' -"fi' ~.-~ CRACK.. GAP ,.;,'\.,tY; I'.' . . '., \,1"-,, '._ ~-........~ ".L...,_. ~:;~,v¿ ~ 1- ··~:~~';J"t-f)·,J ,\:}_. . -" ,.",~,. ,-..",,- -;-;;..:: ~ .,;,;,.,..... Mainboin Complete Wen Records Effecåve m"";n~,..,,,,,nce programs begin with cumplete records 00 die coosttuctioo, testing, and mainleoance ot yoor well Yoo should w<>rI: wid! yoor Wara Well and/Ol' Pomp Contractor to establisb inspectioo and routine mainteoanœ schedules based on the specific characteristics of your well and water sopply needs. Complete well reoords sbould include: . The Driller Log: The document describing die coosttuction of the well---how deep it is. what dcprh it draws water from (die perfornled interval), and the soil types encountcIed while drilling. "-<:.>.~':~~ .:<- t'~t:.../... --"';",;(~~ \.,"- .'~~"I . ~J'~;!I..:j/ ,,,",,1\" -~. "- Loc"k for (Jp8f1¡r:g~'1 that imocts, ,,)denl~, wale!"; or anything 01~e co:', e:;tcr. Ccp, ?~c!, 01 otherwi"Q plug !hCiìl . f) Look fù( .:rocks in the concret,s, pad that would allow waler, and any (o(1tominOllt~ it moy be carrying. to follow the well casing dO"I,m into your drinking .woter aquifer_ Sea) crocks, or re--pour 0 new concrete pc,d e !f waier i~ flowing out the top of the well, coli a licensed wellconiractor to stop the flow. :rl uJJ¡Lon :0 being 0 '.;'mie cf welter, if water can leak out, contamincnt~ con seep in. ø Remove weeds, leO\/8S and other dl~bris from Ci[.:;und your ,....'ell The,e (on creole great home:; for rodents and other pests RE!member, do not llSf! 'herbicides 01 any other chemicd neor the weil f:) Make sure the ground slopes cwoy fi--:;m VGUI ',"'ei, ,:md ¡hot ye'Jr- Vlsi! (0";,119 e ~tends c:! leo~t ('.Ile k,0t~lb,:"vo? ~he ,::;raund !c emuri':: thot surface waleI' Joes I,at cailect or flow Ileai' the wen ø iv\(]ke SUfe your 'Neil (€Qislrotion I1llrnbp.r IS <,tiil vi~ibi.. on YO\lr wel; rhls i~ (! ior:al I~qal re'lllIlPrn~ni 'k:ed :J :1~\;1, h::e registration bg at 408-25&260;: e;<!ensic,n 2660 Coii ¡hE! Distlid if you if you have an inccti',/8 'Nel), rurn the pump on 3e',¡erai time~ during the yoar Ie m.:Jke _';UI-2 rh,:¡t everiihinq is íLindionir-,g pr·operiy. Insoect and maintain (o:Jr inocti'Je 'N811 fDlk~\'~_íng the "ome guidelines 05 lor your acti'-'e_ 'NelL If yOu never pion rouse the well a9~1I1, you ore legally oequlfC:'J 10 fJ,operly de~¡roy iI_ Plupedy deShr!Y'I\8 Ihl;': weil will ~)Ii'::~el'l 11 ir,,)!I1 bell'\;1 Of' (I~.uJeJltal µ,~:hW':Ji c-f '_'.Jlìlan¡inahon into your Deh..e we!I, '¡(YA neigh!J,:,,'ó v.'ell, ':JI thE: l~¡OunJwüt~r (NC;TE A¡;lrC!:::;;"ç"~:J'(:; .J,e 'C)ê/c,¡,,"d !(' ':of' rJprrr"'t"'Ò 0.' ,JC.'.'1Clb'/ w~i.i, i.,), 'M" [:-',<',,(I..i G , il-/..fO This is imp.:H'WIt information to help uoub1e- shoot problems. should they arise. The drilling conttacta should provide yon with . copy of the [)riDer Log following completion of the weD consuuction and testing. . Pump Test Data: The pump teSt gives information on bow moch water the well can produce. This infonnarioo is also œeful to ass= well performance as the well ages. . Dislnbutioo Map: Draw a map showing the locatioo of all the buried wa1CT pipes connected to the well. If you share a weD with adjacent properties. it is a good idea to have a map of all the plumbing on your neighbors' propertY as well. Tbis informaôon can be invaluable as the properties change hands and ",pairs need to be made. or as new wells :ue added. · The Physial Lo<aIioo of !be Well: Mcas= the disrance to the well from pcrmaneot structureS (e.g. the centerline of the road or comer of the house). · Maintenance Records: Record whenever you have any mmnt..-n!'lnce done. such as ¡eplacing the pump or check. valves. This is importæ1I infonnarion to keep track of how old the various components are and who repaßed them Iast. · Wale!' QaaIity Data: Keep all yoo£ past wata qoaIity testing information in one place. By comparing results from one year to the next you will be better able to deteCt changes which may indicate: problems. · Disinfedioo ffi;tory: If yoo disinfect Yoo£ well. keep lIaet of when, why and _ it was done. Deteriorating WeD Performance The performance of all wells will deteriorau: over time. but proper well coosuucrion and to3ÌIJ[Ct18DCC can delay this problem. The typial caOSCS of performance deterioration include: nrinc:Jal encrustatiOll or hiofooling (bactcriologial cnaustarioo) of the well screen. physical plugging of the well screen. fiJta pack. and sorrouoding soils by fine particles. COIIOSÌon of the well casing, and pump prohlems. Mæ1y of these problems can be pn:veoted hy proper well design and consnuctioo. proper pomp sizing, proper operation and maintenanœ, or preventatm: welllllaÌJ]lella11C· If not allowed to progress too far, most well performance prohlems can be com:cted. To prevent or coooct performance problems. you should work. with your Water WeD and/or Pmnp Contnu:tor. WeD Destruction Any well that is no longer being used for its intended purpose is n:quited by law I<> be properly des1royed. Because unused, abandoned wells can act as palhways mat allow poor quality surface water or shallow groundwater to move into deeper drinking water aquifers. it is very inrponant that they are properly destroyW. This is especially tro< if other wa1CT supply wells :ue operating in the area. When a well is being used in the vicinity of an abandoned well. the pumping activity in the operating well can actoal1y pull poor qoaIity wa1CT down the abandoned well, into the drinking water aquifers. and then inl<> the operating well. To eliminate these vertical pathways for contaminant migration, abandoned wells must be destroyed by filling the entire well casing with cement based scaling materials. As with aU well constnJction. modification., ()I'" destruction. any well destruction work must be completed hy . C-57 licensed conlIaCtor and under petmit from the Santa Clata Valley W.ta District (District). }I -L{( Water Quality Protection Why Should 1 Protect The Groumlwaler? For most well owners. groundwater is their only source of w= and should, therefore, be protecred. Qroondwater moves very slowly, often only a few feet per year, and because it moves so slowly, once it becomes polluted. it takes yean; foc it to be natlInllly flushed clean. Manually cleaning pollutants out of groundW= can be exttemdy costly and difficult. Often. the ouly solotioo is 10 find a new source afwater. Whot Can 1 Do r. Proùcl The Quality Of My Wotu? Always keep in mind 1hat you live 00 top of your drinking w=. The layer of ear1h between yoo and the water provides some protection from contamination. but it is not perfect..The safest way to protect your water supply is 10 I<3Ch your family, úioods and neighbors: If"You Don't Want To Drink l~ Don't Put It On 01' In The GroIUUl! Create A Zone or Protection Around Your WeD Your well is a diICCt cooncction betwccn you ami your water supply. ConIaminants can flow down your well as easily as water flows up it The farther away from your well you are, the more sand, gravel and clay there is 10 filter out conwninaDIS before they reach your water supply. So create a circle at least 50 feet in diameter around your well where you don't slOre, mix, spray, spill, bury or dump anything that you don't want to drink. Don't forget to look. out for your neighbor's well if it is near your propertY line. Any contamination in your neighbor's well can travel into your well. Some activities legally require more than a 5O-foot zooe of proteclÎon. For example. septic tanks. ]each fields. ami animaI eoclosures n<ed to be at least 100 feet away :from any well to c:nsure that DO waste products n:ach yOW'" drinking waœr. There are many activities that do not have fmual, legal selhack requirements. Use your common sense. FŒ example. don't tie your dog or goat to the well st:ruebJle-DOf. only do you risk breaking the casing. piping or electrical connccåons. you risk contamination from urine and feces. J':ji;'~;::i'< __- ,~.~.c,~~~~,(tt~~:l'::;':~1;~(;;:!:~~r.;~!t;:;~::' . ..... "~; " .1.Ìì:Jdl'ff';::~~*"';~:!'-v"/~~'il;.~":-'¡:"-,:\,"",. _~_._ ~. sm'M::"~iIt'it~,~'.t'~·;:'!'-\f~j"~";:;-;~";<· .." + ," LCNi IMPAC! ACTMJ1ES · Recreationallvea · House · Organic Gardening · landscaping (no chemical usage · Ch;kI Play />no · Patio Furniture MEDIUM IMPAC! ACJMTŒS · Swimming Paolino pool chemical storage} · Garage · Boat/Vehicle Storage lif no leakage) · Sewer üne5 * HIGH IMPAC! ACTMIIES · Septic Systems * · Animal Endosure5* · Manure/Compost Piles · Chemicollfuel Storage · Machinery Maintenance · Auto Repair *feøoIlytequindsefbocb {( -If J-. Maintain Your Septic System A septic system coo.sists of a tank and a leach... dnIin field. All !be solidlliquid wasæ from inside the home flows into the: septic tank. The S<¡>tic tank is composed of twO compartments. The waste is deposiœd in !be fust compartment when: the solids settle to the bottom and !be liquid and scum float above it Bacteria and other microorganisms break down !be solid material. As !be liquid separates from the solids. it overflows into the second compartment wbeR: more separation and deccmpœition occur before it flows into the leacbldnlin field. The leacbldnlin field is a network of perforated pipes within a ueocb of washed dnIin rock borioo about two 10 1bree feet deep. The liquid WoISIe flows out of !be ~~:~;~_c~'~;:;~~-G';1S':~~-:' ~_ ~H__- f -:~~l,~-{ ,"'/¡'Ï:10A'DÑGSáJM.""', ..::,',' _ _ \ ."....:' ....,.~ ..~_,. ''''''C\ '..," ','" f .'.,C':,',-:- - I.........,. '....-,,-..--':... ;·'....¡.nflìôLÅŸ£í'...-';.:.. ,. - I\....~ __~ ...' ~'<- ~_ ..,...- - \.... \. ':; I., I, J ,_ , t, ~J.. .., " ,,', ':; I,. I., SOUDS lAYER SEPTIC TANK pcrl'orated. pìpe and into the soil where more pollutants are æmovcd. By the time the waste- water reaches the groundwater. few impurities sbould remain. If you ba.., a septic sYSlem. keep in mind that wharever goes down !be dnIin may find its way into your drinking water. The required loo.fOOl. setback between yoor well and yom septic sySlem provides Idati..,ly good protecrioo against bacteria and viruses wbcn it is womng properly. However. this setback: was not designed 10 protect against things liJœ ph0to- graphic processing cbemicals. ba7M1Ious art supplies, haz3rdous boosebold cleaners. paint and paint cleaner<. aulOtDOrive wastes. pesricides. and other ba7M1Ious cbemicals that DO NOT DUMP HAZARDOUS CHEMICALS II ~ lt3 may not bœak down and filter out as easily. See below for ~ of che things to look for. InspeCt Your Wellhead On A Regular Basis It is very importaD1 to Iœep any t"",ign materials, inc1uding surlaa: water, out of yoor well. 1bcrefore. it is impœtaDt that your well is free from openings and that your concrete well pad is sttueturalIy sound. Yoor well shoold be inspected annually to be """ that tb= an: no openings in cbc wellhead or cracks in the well pad. Any openings or cracks shoold be secured or sealed. Ret... 10 tho Well Coosttuctino aod Well MaintenaDCC section titled ''Inspect Your Wellhead" for more information on how to complete an inspection.. Protect The Well Structure Many well repairs can be very costly, SO it pays to protect your well from any physical damage. 1. The safest way to protoct yoor well from being damaged. or lost is to build a smaIl structure or fence around it Keep in mind that you will need easy access to tho well formaintenanœ aod I<>IiIs. If you dro'l have a strUcture around your well, then clearly marl< il so when tho weeds grow up in the spring, it doesn't become bmied aod lost 2. Lock tho well enclosure to tniuimi7J: the chance of vandalism. ~_' " "."""'ijj,,:,:~t!{:;ffi¡f:j'Z'~!ii1gr":~i~"í::t·:,:;:.:;:::,,:':!I?,:õ;;i:}:Cf,.;!.t:-;::i'C"..,d¡',-""'-' . ¡::;1f. I . . , "" ;<" \" ~ *!9<'¡;",ó(:,'~¡¡'if'~"'1"!!;(\i.í7'·i;:,""'"-:'-~/"/-"'\"""",.. '.,'" :'.">_'H,,'-:: . . ~,._.,_ ---"__ ,.~..'tt'''';';i.iif1i.<Y,~~£i~¡¡;'';:;J,;Uj~;t;~'~'1~ii~:;:¡'~'');¿j,;;:':Ó o Do not dump hazardous chemicals down the drain_ If your drain is plugged try using boiling water or a drain snake instead of chemical drain cleaners. Use less \oxic cleaning supplies whenever possible. Toke all hazardous chemicals to a hazardous waste drop-off for disposal. See the Resource Guide section in this guide for drop-off locatians If you notice a sewage smell, a continuously wet area in your yard, lush vegetation around the septic tonk or leach field, or liquid waste backing up through your drains, then something is not working properly. Call a licensed septic tank inspector immediately. Ð þ,VV .uSES ~ Ð Ð ø ø ¡ TREES WITH - ø 0 PENETRATING FIELD ROOTS Hove your septic tank inspected and pumped every three to five years (more often if you have 0 garbage disposal). If the solid waste in the tonk builds up too high, it can flow into the leach lines, plug them and cause your system to fail. Keep the solids in your system to 0 minimum. Do not use your toilet as a garbage can. Food wastes, feminine hygiene products and other hausehold solids are better placed in the garbage Do not pork 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 yaur leach line. Tree roots often seek out the moist ehvironment inside your leach lines and plug them, causing your system to fail If you have a dual leach field system, change the diversion valve setting once a year Do not use septic tonk additives, yeast, bacteria, enzymes, or other products to enhance the system. None of these products have been proven to be beneficial and some can couse permanent damage. j( -'-I Y' Water Quality Sampling and Treatment As water ""vels over the surface of the land or through the ground. it dissolves naturally OCCUIring mincr.ùs and can pick up substances «suiting from the presence of anUnaIs and human ac1ivity. Contaminants !bat may be present include: · Microbial cootaJDinanIs, such as viruses and baclcria. that may come from sewage treatment plants, septic systemS. agricultural livestock opcratioos. and wildlife. · InorganiC contaminants. such as salts and metals, that can be natmally-<JCCU[!ing or result from urban stormwater nmotI. indusuial or domestic wasteWater discharges, animal facility waste generation, mining. or fanning. · Pesticides and bcIbicidcs. that may come from a variety of sources sucb as agriculture. urban stormwater runoff. and rcsidentW uses. · Organic chemical contaminants, including synthetic and volatile organic chemicals. that arc by-¡oOOuctS of industrial processes and petroleum production. and can also come from gas stations. urban stofD).W3ter runoff. agricultural application. and septic systems. . Radiœctive contaminants that in our area arc typicaIly natunlly OCCUIring. Drinking water. including bouled water, may n:asonabIy be expected 10 cootain small amounts of some contaminants.1be presence of contaminants does not necessarily indicate that the water {X)SCS a bcalth risk. More information ahour. contaminantS and potential bealth effects can be obt1ined by calling the USEPNs Safe Drinking WaterHot1ine (1-800426-4791). Some people may be more vulnentble to contaminants in drinking water than the general populalion. Irnnl1D10-c0mpr0mised persons such as persons willi cancer undergoing c~. persons who have undergone organ ......Iants. people wilh IllY ¡AIDS or other immune system dis<>nIeB. some elderly. and Ùlfants. can be particularly at risk from Ùlfectioos. 1bese people should seek advice from their beallh care providers about their drinking water supply. The most common groundwater contaminants currently of coocem in Santa Clara Coon!)' are bacteria and nitrate. Bacteriological quality of drinking water is detennined by analyzing for coliform haderia. 1bese bacteria occur naturally in the intestinal tI1ICtS of humans and anUnaIs and in soil. A1lhoogh coliform bacteria normally do not cause inness. they should not be present in drinking water. The presence of these bacteria in the drinking water indicates that the water may be contaminated wilh other orpnisms that can cause disease. Disease symptoms may typicaIly include diatIhea. cramps. nausea. and any associated headaches and fatigue. Bacteria 1evels can fluctuate seasonaIIy wilh wet and dry periods. Nitrate is a naturally 0CC0IIing compound. but lñgb amounts of nitrate in gr01mdwaœr are typically due to human activity such as fc:rtili7er applications, septic systemS, and animal enclosures. Nitrate in drinking water at levels above 45 milligmns per liter (mgfL) NOJ or 10 mg/LNOJ-N is a health risk for infants of less ÛW1 six months of age, pregnant women and people wilh certain specific enzyme deficiencies. Nitrate concentrations ii1 ground- water may rise quickly for short periods of time because of rainfal1 or agricultural activity. If you arc caring for an infant or arc pregnant, you should seek. advice about YoW" drinking water from your health care provider. Il~l/) WATER QUAUTY SAMPUNG What Should 1 Test My Water For? There are dozens of testS that can be performed 00 drinking water and no one analysis can assure tbat YOOf water is "safe 10 drink:' We bavelried 10 compile the most commonly performed testS and their recommended testing freq1Iencies below. This table should be used for genernl guidance only. Since coliform bacteria and nitrate are the most commonly found contaminants of conccm in this a=. we recommend testing for them most fi<quendy. Electrical cooductivil)' (EC) is a measure of all the dissolved ions in your water. By itself. EC does not tell you if your water is safe 10 drink. However. since the electrical cooductivil)' test is the cbeapest and easies~ it can be used as an indicator of cbaoging condilioos tbat may require further testing. The mioc:raIs tests "'" recommended in order 10 establish a _ undeIStanding of the water qualil)' in your well and as a J)('...hammJ to indicate water quality changes. $25-.45 ' ;,.45mg/1~ or,:>,:~,-':::-'-' "', :> 10 mg/I NOoN "'. ~ 1600Ìimí,;,,¡an or signi"cànlly , diø....t from ~"'" year rØI MlNERius ' ," ~~10yoon. , Of",,,,::,,,/,,.;,:-:,,:.:,,,,,:,:;·;,-,, W EC chang.. signiftcanlly, ' '01";:;':->/::-'''''''_- "," ___~_~;-,coÌor; _~CJi 0< "",,,,,nding land uie change , Package $250 - 300 In.rlViduol' $20-30 Merœry $30-.40 AI;, o.i .,'. mgJ1 . As :> 0.05 mg/I Sa :>1.0.' mg/I Cd :> 0.005 mg/I Cr .:> 0.05 mg/I F' H.O mg/I Fe ;,0.3 mg/l Pb :> 0.015 mg/I Mn :>0.05 mg/I Hg :> 0.002 mgJ1 So :> 0.05 mg/I Ag ;,0.1 mg/l _"~c. .:._,','~ .C,' .;:'" ' ....O_~·. . '-,-);,' , AIt~i~~,r;::IA6:-';-',:i,::,,:,::" Anenlc 1AsI·" .' Barium (Sa) , Codmium Cd, ChroInium (C~ Fluoride(Fl Iron (Fel Lead lPbl .' , Manganese IMnI ' Morcury (Hgl Seleniom ISo) Silwr lAg) thin.' .." ; < '::ë_',.L.' ê, . you may_III...............· ... mare oIlhe faIøwii,g apIions: , " ...,.....,'..,...,..-.,y.,.:.. :..,.....,..:""...,....':','. ,....." ", ".'i_'j' ......_'.. _",'):,. _.' Bimi~:cause.,~Îsinfeqo,nd~¡'.; " (see page 13L": <, ',' '!::"'~ " :i¿!¿~~d(~'~';~:: diSf¡DatI"""chlori~Oñ;'.ozo~tio~,~;:;;-..:.-;,,"r uItraviCJt~,:~i,(JI!CJ"~:ConsUlt ~-Woter":':,:',; ,"~rt'pr~i~foc:~...~~'i',· :'<',_", ",,-;-: ,:,....:.··.>...:·····:·':··.:··:·,.t.·,.-,···.--·'·'··.'.,..:.:<.... I_II 0 _en! sysIèm 0< Rn,f 0';', - åI~~$~'pPlyi,ReVerse'c»ni~i~~.;· '. distJ1afionl OI:_ån¡I?"·~~-ngè,,~D,,' :,'<, ,:',:<,' .. '~,sOrñ! of the:nitfote;'ConSUlt,a:'.,"'·'- . _Ireotrnen! prcfèssionol. for more' , .dvke. '.' ,',..... ':::. .' '.'" "". ,;., ,,:.,c:-"" . ~ tesling frequency '. èOOd~d r,;r1f>;..í:.ting~'';;'¡' '¡,¡ ni~' "and/or minèralS.~'d~;i~tÞè:,~ '.'\.; of the high EC;"" the change In EC:. , " :., ..' ." -~ -.,' .. .... '" ".." .,"'';', .. .... .. .:. .--', ' ~~h",,~~~~1b ....., . l.....n 0 ireotmeni;y.;. 0< find on '. . 01_ woteo: sÙpply. The opp-oprtote ' __ oys1en! is dependent on your . """"II...... ~.,.mi"'Y oi1d what . camlilueOts you would like 10 remove:' . Consuli a waIer treatment profeostonol for more advice. Õ!: js greater than or equolto mg/1 is milhgrams per liter. 1 mg/I_ 1 part per million ppml. 1 mg¡1 - 1000 microgram per liter (µg/11. '119/1 - 1 pari per billion (ppb) {r-Lff.c What Do 1 Test For When My Water BtU Specific Taste, Odor, Or AppeØTtUIce Problems? Below is a guide for some potential problems in drinking wa1er and substanCCS you can test for (in bold). Not all of 1he problems and possible causes pose s bcalth risk to 1he consumer· Porèelain R>eIu... or làundry are stained. brown or block, While spob on thO dish... or white encrustation around fixtures ~'isblue w.. smell. like r.n eggs , Wale< heatei b comxling , ',"f''''';, WØer appears d.,.,dy, frotI1y or calor.,! ~'s plumbing~ha.lead pipes,,~lIings, or soI,der join~ . W.. has a IUrpenline odor Wate< has a chemical ;sm~O(taste ., _,-, :.- ..",,:::~-, ,"- - ·-·,-,·"",7 Thi. may be d... ~ high ~ of iran (Fe: ~ Thb i. cain,;",.,fy 0 iesuIt of high ";'ng;';;... (Mol ond/or iran IFel1eveI.. A.litde a. 50 palis per billion fppbl mang~~a~_ ~()(),#,i~c:I"Fn ~~jning. High levels ri calciUm ¡c,;) and ~ (Mni can cause . hard waler, which Ieaws spats. Hardn"" can abo be measured directly. .' . .. .. .: . ".. :~";'~" ,,_., ,','.:., . :' .>, ":'. ..': -' ::i':· ':"'''~:,:' :: ,':.' -:.".",; ...:.'. ",-' : ,:..... :.,:: .,.,...... .,.':' '. - :':"""'.:...:. '.'. : ;.:';-".":,". ,'" 81... _ or blue deposits mOy be due Ia high 1...Is of copPor (Cu), especiállya coopIed wi'" carn>s~_. This i.;.."ì lik~ coú;;;.¡ by hyd''':ddelH.s1: '. ~<\..";,,..,.. ,'..·.0'-",<.., ",,". ,;.. -".,,"'~,"".>..,,":~""'¡"""::;' ':...... ':.-. ,¡;,'t.-i,.:,'.c,';''':':' ¡ ,,--..,:,.., .. _W~·'~'~":~'~,"·~b(;~:~~~:'~:<":'-'~:'-·· !hat i. -Y cÒrrasMÓ Can damage meIaI pip.. and - .: heaters. The lab can' calculate thé canosivily of yoo. wàter .' by níeasuñng caIciuÌÌi, pH, I0Io1 diÛalYed solids (IDS), .' . å,~.~~n~,~;:':::;: '.''':' '_'/:'><:-'<;;~"":'_-,;.;,:;:-';i.' "-::::'ci';""':::""--;' '1:":':"_::_""':""":"":;':\"""_'· Susf>o!tded partic~, measured dinoctly a< as IUrilidily, can cause die waIor Ia appear cloudy, IraIhy or cala<ed. ~rg..b and/or sewage waste may also be !he culprit. , '.,,'::'_::.::,.'.'.'.",'.,.::..,'.':...,:'.">': ,':.,,:..-..:;,-:...,,' ::.;7:':·',.···>:,:,'..··'.,:>,··...,· ,. " CanosÎYe _ can cause lead [ppbl, cOÍ>P<" (Cu), . cadmium (Cd), and/a<:zinc (Zn) 10 be leached from lead pipes, Rllings, and. solder jainls. " ' . . .' . C'..,:,"·,', ,...........,...,'..;...:.,....,.,.,".-..'."':.'.. This';'oy be ~ Ìo meIhyIlerlia~buÌyl6I\ieI· {M1ÌIEI . ,:'__ '._, __.'._" ,.,.._.:-.....':,. ,:"C"."" _.'.; .--'.:'--:: ,","" ..'. .c._:-..·'· ::.:,,, >, Thí. mày be due Ia wloIiIe oi .....ivaicmle org';"ic com~(VOCs)orpe>ticid~. .... . .I..... 0> Are You C011CeTlUld Thot A Neor/1y Actirit] May Be ContmninøJing Your Wen? Here are scmc land uses and possible contamioants to"" for. Agricultural crap production ü~ endosure, manure, Of compost storage area Gas 'station or automobile repair shop . cOOsia;.:.. wrig r.;;,..íotile.;.g."ii ~..h (VOC,1,p¡.; I0Io1 dissaMd solids (IDS), chloride (eI), su\løte (SO.I, ' a';dmèials::':~;." . '~.,'., ,,\,::<;:.,,~~,'" ,\ consicL.r lesting lor pesticides. cammailly used "';"Ihe well (consuk Ihe fanner Of Depao1menl of Agñcullure lor a lisl\, .' n_ (NO.1, pH, and IoIaI dissolved satods (IDS). eon.;d.,:·...fing lor bacteria, n_ (NO.). and lobi db.aMod solids (IDS). ....,...... _.,' Consider 1esfing Iorh,.,) peIrOieum hydracarbans [IPIIg); totaI..1 and grease (TOG), ben%ene, toluene, etbyIbenzer1e; xyI....!BruQ, MIllE, eII1yIene dibratnide (EDB). * 0 No known heatth risk. at commonly found concentrations Some of the po5Sible causes con have 0 detrimental effect on health even if ¡:nsent in low concentrations 1\-~1 WATER QUAUTY TREATMENT What If My Total Coliform Test Resulls Are Positive? Step 1. FIrSt, try to derermine where the contamination came from. The table be10w lists some possible problems and some recommended corrective actions. Some problems you may be able 10 fix yourself, wbile others, marlœd by an asterisk (*), legally «qUire 1he assistance of a C-57li~ well conttactcK. For a list nf C-57 licensed professinnals call1he Sanla CImo Valley Water District (District) at (408) 265-2600. or visit the District's website. From 1he District's bomepage at bttp://www.heynoah.com select <Water Snpply:> 1hen <Wells and Watr:r Use>. ihê,:~I)s'::~~:~~~~"~,'~i'r':I~~,r?";::,:'-";": orrepàir was recently dOl\'" " ' The pnm,,"';' ¡,nmed wilh im~"",",. Rej¡;"'¡" ar~md ,!he well sa the ground ~""'" "":'Y from yourwell " , ' ' , " ..,:,..:..:........:..:.<...'.,'.,,:...'..:.._'>...'.......,.:''...'::.:'.''-;-:.:-·i'''>'::'-'':''·':· 1btn Ì$ sland;ng ""'"' around Ihe well or wo¡';' draining toWOrd!hewell",.'" ,,: -- ,-- '.,' _ ".. ii/-i\;"' R_ ¡>ad or Iúc and...,I an c~ and 9"1'" >:"".,<,>:.",'::-.. : ,":',i":i:: ~ =:~I pad,i!'7ed ~><p~. "~ ~m!he ' The well i. nd completely, ';"'led against ,!,rfaœ ' WCJter'"ir\sltctS' m:oIh~"fOrei9~_~' ",' ,-"':'::",...::",_:'..:,'.: Repla<»any m;ssing pIùi¡s. CO> any open pipes. and ...1' any openings, SOl" or cradcs.' , ' ,--.. ..,' " ,.......d.... c..:...:.·:·:.···:..···.·.,::··. ..·..:i:·','·-·;'-··:, ",:.....-.:,:",'..,'.:'., .Ct>nk;td ~ li~~~tmdor-~'~eplace"·or-i~~H' a new wellhead gasket. , ' , , Canlad a ,.....: oystem canIrndar 10 ¿';'n and seal. Mak.";re!hat your plumbing is natcòn.";'ted 10 a~ther ~.: afwoter ~(Jt may þe ,cOntall1j~tIKf (0.9: a defunct camnnmily ""'"' system). 'Th. ~. lank is dirt('; unproœcted. " ,'_'...:,::' ...,·,__...,···"i'·'··'-·.."··.. "'.-" "'." , There:~r~:~a9r u;nù~'~'!i~:con~eÇtedtò: your plumbing system. ' , . ,,-,--, The,;,..n casing Ì$ "';'.od~ð;; c· ".:.::,: ,,,-:..,,.:,,,::,,>.::,.':.,:,-,..-:,..:..,' .",:,,':".,:.": Th.... i. sedimenl ~ the !.aII,am althe well. , The Well casing' i~ perfora~ ~'highor the sanitary seal is not adequate. *CankJd å li~weI """",cIar 1<> dn1t h oew:...;.na"" Ia "'~ desIray!he aid well. Step 2. Once you have located and e1imina1ed the source of the bacteria. disinfect the system. For instructions on bow to properly disinfect your well and distribution system, visit the County De¡>artment nf Environmental Health web site at hltJ:/lwww.ehinfa.org. call them at (408) 299--6061), or call a ücensed water system contraCtor. Step 3, IMPORTANT: before drinking 1he water, test a new sam¡>le for IOtal oolifnrm bacteria. If the results arc still positive, start at step one again. . '" ',~" ,,-":.'." "".:" ,", ((~l{r Whø:t Can 1 Do About Otlur Problems With My DrinIdng Water? Most groundwater does oo! require any treannenL If you have bad YoW" water tested and found a problem that you want to treat. there are many different types of treatment available. Not all water treattnCot systemS work. for every contaminant or for every water type. Once installed, most systems require routine maintenance to continue performing properly. Improperly maintained systems can cause more damage than having DO system at aD. Yoo need to know what you want to nmlove and if you will be able to peIform the routine maintenance beJon you invest any money in a system. See the guide on the left for the options available for your particulitr problem(s). Some options remove a greater pen:ent of the cooceottation than oIber options listed for the same substance. We highly recommeod that you talk with the manufacturer or a water treatment profc:ssiooal to get a guarantee that the system yoo are considering will work in your situation. Some water may need to be softened or pre-filtered or the pH may need to be adjusted prior to treabneDt. s<lncI. ~h;dÒy (oufb;di1yl VoIalile..orgonlc ~i,!,ls (soIr>e1. 1 Wh..ldlowed bot ",er:hanicol filtration OI'!III ~ cø'boII fibi' 2\Ybtn~lnfCJWwncønIrdi- 3 Only for volatile orgCll'lic dl.micab wiItI high bcJI1ing pam 4 OIh.WIØ'qug¡typroblemamuy¡.-ferewith~ sWilh:uØiteØ:.flenjng 6 Ohn requlr.. p"....... ~ ., n,_ ewe ~ diRerent IypeI gf CJdivded c;arbon Iiks cI.. grlJl\Lllew, bIoc:k, powder,lIk!, not oIlypeI work on 011 ~11Ød. TobIe odopI.d fn:m fte Wøf8r(Na/iIyA.uoxicrlion aßtl/Í'om 1996. Rid WeinzMwf, et.allI996. ·S7Wuys ID Pro/et:I YOlJl" HonNr&Mronlll8'lt fØIICIYOIJI"J.Itø UnlvenityølJf'lIIOisd~ ~ ""'ralll.gicnølExteNion, publicofian583. I\-t{~ Resource Guide LOCAL GOVERNMENT Santa Clara Valley Water District (SCVWD) The Santa Oan Valley WatJ:,r District (Dis1rict) is !be grooodwaI« maoag"""" _ f.. s_ Oara County. Tb:: District's mission with respect to wells is to CfISU1"C thai: wells arc cQOStnlCIcd. maintained. ODd dcoooycd m . """"" "'" will DOt po!<Drially damage !be groundwater basin. For iDfŒm3lioo 00 the constrUCtion and des\I11CÓon of weDs. grouœwatl:r I=b. grooodwaI« qualitY. ODd loco! growxtw.Jcr studies and services in Santa Clara County contact tbcDistricL (408) >65-~ http,)/www.heynoah.<om Contøtf 1M District ifJOMIuM 4 qrumoll øbouJ: · _ Quality. L=b. Flow DUection. or Gc:øcral Infarmaûoo · Weu C(JDSttUCÛoo.. DestruCtion. Penniuing. ocProtectioo · Dry Wells--Stonn Water Infiltralion Dcv1ces · und<rgroUDd Stonge TaDb · Mothyl Tertiary-Butyl EtOO (MfBE) · Nitratc(N°3) · SaltWaterIntrosion · Smvent Spills · C-57 ucenscd Well CooUaCtOt5 · State Certified Laboratories For spills. hazardous matcrials accidents, oc il1cgøJ dumping cootaet the District's 24-bour 00dint (l18li) 5111-5151 Santa Clara County Department at Environmental Health (DEli) The S_ OaR County Dq>u1mCD1ofJ'miromnoD"¡ HeolIh (County);' ""J'C"'ili1' f.. pro<ooông p"btio health. The County enslDt$ that 811 ~lIs tba&: serve less than 15 homes comply wilh stale and federal reguJaóons for drinking water quality. WeDs that scm: 15 IJ' more homeS fall under the jmisdiction of !be CWfomi. Dq>u1mCD1 of HoaIlh_. The County is a1ao the pcnnitting agency fŒ septic sy~insta1latioos. (408) 1'19-6060 http.)/www.EHU>ft>.o.1l CorUtld Iht CmuaIJ ifJØU 1um ø quertûm øbout: · Drinking Water Standards It. Health Risks · Septic Systemi · S[atcCcrtificdI....abof1torie · Well and Drinking Water Sy¡tem Disinfection Household Hazardous Waste (HIIW) Drop-Off Facilities The Household Hazanjous Waste Drop-Off Facilióes p<Md< !be community wilh pnc1iool poIIutioo preveutioo strategies fŒ the use, recycling, and disposal of products containing hazardous substanceS· Call the Hoosehold Hazardous Waste Drop-Off Facilities fer mf",",,"oo 00 !be propor di.<poAl of _bold hazardous ~ including a list of facilities in Santa Clara County accepting household baza¡dous waste. (408) 299-7300 bttpd/www.hhw.org State Certified Laboratories A list of state certified lahtn1Œies can be obtained by "'¡¡;"g !be County Dq>u1mCD1 of faviromœDIa\ HoaItb." (408) 2_. ",!be s.ma Cbra Vall<\, WaICr District, at (40S) 26>2600. You can also find a list of cc:rtificd labmatOOCS 00 the District's websÎlc. From 1M District's bomcp8ge at """,)/www.heynoalLoom. sol"" <- Quality> tbeu. <llYour Waœr Comes From A "Well> Stale Licensed Well Contractors For a list ofC~57licensed professionaJs call the District at (408) 265-2600, or visit the District's website. From the District's bomepage at http://.www.heyDoab.com. select <Watt::r Supply> then <Wells and Water Use>. REGIONAL AND STATE GOVERNMENT California DeparbDent or Health Services (DHS) . The Division of Drinking Water and Fnviromnental Management (DDWEM> is responsible for 1M regularion and monitoring of public water systemS. systems serving 15 Œ' more homes. (916) J2Hm bltp,I/WWW.-- gov/pslddwem California DeparbDent at Water Resources (DWR) Tho Dopor1m<nI of_ Rosourt%S bas_on OD groundwater management issues throughout California. The web page bas a list of useful pubúca- tions on ground waIQ. In addition. information 00. waœr lcveis and groundwau:r œ...."lV'""'nt and quality can be obIaìDed for the Cen1ral District «(J», which includes aU of Santa Oara County, and sta1CWide. (916) 217-7590 http,)/www.dpla...."'..,. goY/og>bm!supply/p/maiD.pI Department atToxic Snbstances Control (lYfSC) The: Depa:rtIDent of Toxic Substane.eS Cootrol caD bclp answer questions about what is a hazardous wasfC., bow 10 Rduce bousebold hazardous waste, wbc:n: to """,,.pIIs ODd ilkpl ~g," well.. pnmdo information on specific hazardous waste disposaJ or bandliDgfacilióes. (9t6) 324-171R1 http,//www._a.gov State Water Resources Cootrol Board (SWRCB) The mission of 1M State Wau:r ResotIJccS CoDttoI. _;, to I"""'" 0Dd-=!be quoIityof California's waœ:r resources aDd ensure: their proper allocation and efficient use for the benefit of present and future gencr.ttions.. Through the RegiooaI Water Quality Coottol B""¡'. tho Sial< Boord """"" I{~S-V all the WasIC DischarF RcquiremcDIS (WDR) and Narional PoIluIioo l)isçhagc FJiøñnatiop Service \NP!JES) pamiu. (916) 127-4408 bIIJ:I"""'- . Regiooal Water Quality CootnJI BoanI- San Fr.mdsœ Bay Regioo (RWQCB) The San Fnmcisco Bay Regional Water Quality Cootrol BoanI. is the h'aøCb of the Sta1C WaIcr ~ CooIrol BœnI ~ io<aI """"gin foc!be San Francisco Bay W.rmhcd.. The San . Francisco Bay Regioo iPcludes all of !be tJ(I1bcm cities in Santa Clara County to approximatdy CocbnD< Rood in M..... Júll. (510) 61>-2JOO bttp:l""",.swm..a.govlrwqd>1 . Regiooal Wat... Quality CootnJI BoanI- Ceutral Coast Regioo (RWQCB) The CenIrnI c- Regioml WokS QuaHIy CooIrol Boani is the branl:b of the Stile Waler RtsouJceS Control BœnI pr<M<üng !ucù """"ght foc Ihe Monterey Bay Watershed. The Ccntn1 Coast Region includes the southern poróoo of Santa Oant County from awoximatcly CocbraDe Road in Morgan Hill to the PajaroRivcrin Gilroy. (80S) Sot9-3147 bttp:l""",_/nrqcb3 FEDERAL GOVERNMENT USEPA's Safe Drinking Water Hotline The U. S. ~ ProtccIiooAgeø;y's Safe DrinIóng WakS Hudino ;, .,.;Iablo to help Ihe public. drinking wakS _, and - and lucù officia" ondm1and Ihe regWabOOS and progrnD" developed in n:spoosc: to Ibc Safe IJrlI*ing Water At;t. More infonnation about CODt\D1ÎJ13DtS am pœntial bcalth effects can be obtained by calling the USFPA's Safe Drinking Water Rodine. The bodine and web page also provide ioformatioo on testing am protecting private wdl water and wbcle 10 find :mere iofmnatioo.. (800) 4%6-4791 .tIp:l"""'..... gow/,.,'-/pwells1.btml Food and Drug Adminislratioo (FDA) Among oIbcr things. Ihe Fooo\ and DrogA<bninßÞtion regola!cs Ihe _ wakXiodostty· Cootact Ihe FDA if you have questions abou1 !he safety or regulation of boU1ed water. (800) 5J1.4448 htlp:l/......Jda.goY PRIVATE ORGANIZATIONS eanronúa Groundwater Association (ŒA) The California Qrouodwatct Associatiœ (CGA) is a non-profit organization. Its members include water well drilling and pump C(JOtt3CtOIS. suppliers and manufacturerS. geologisu, engineers. bydroiogists. government employees and odIcn womng in the groundwater fie1d throughout Califania- Cootaet CGA fIX' iofcnnarioo on the quantity, quality and availability of California's grourxtwa\ð" resources· (707) 578-44811 bttp:l"""'.gnJlUldb20.or¡: The Grouudwater Foundation (GWF) The QrooDdwatd' Foundatioo is a not-foc-profit orgmrizaóOll that is dedicated to iDfœming !he public .bout groundvnI« """"""" They provUIc """"""" educariooal programs aøI publicalioos fIX' all ages on Ihe impo<W"C of groundwakX and groundwakX pro<cction. The GWF .... off'" rccogoirion and support. for GroundWa1tr Guantian Communities anlAffiliatcs. (800) 85S-4344 http:l""",__.org National Ground Water Association (NGWA) The National Grouod Wa1tr AssocWioo is a not-for- profit organizatioo wbose mission is 10 enbaø:e the .ëlls and credibility of.n groond water prof"""""'. develop mi exchange industry knoWledge, and promole Ihe ground w... iodostty and _taoding of ground wa1J:r fCSOW'CCS. Contacllhc NGWA for i:n!mnatÌoo 00 ground water smdies and publications nationwide. for answers to fuqueotly asked questioos .bout ground wakX. and for Ihe 1_ groond w_ news ami kgislatioo. (800) 551-737' bttp:l/www.ngwa.org National Sanitatioo Foulldation (NSF) The Nariooal Samtatioo Foundatioo is a not·for-profit orgmizarion that teStS ¡roduc.ts Idatiøg iO health and ¡he COVÎf'OIUJICDl NSF certifies lbat hoInè treatment units meet the maoufactUm"S' pcrl(J[JII3DCC claims. Cootact th: NSF for a list of tæatment units that an: certified 10 remOVC your contaminant of concern. (800) 6n.8010 http://www.DSf.org Natiooal Small Flo.... ClearinghOUSe (NSFC) The National Small. Hows Qc:aringhouse is funded by the U.s_ f.øvirmunental ProccctionAgcncy to provMle small c('JØlJIlUllities with u:clmicaJ assistaoee on waste- water issues. Contact the NSFC if you have questioos aboot septic sysrem design. instal1ation IX" D13inICnance. (800) 624-8301 http://.........ad.wvo. edulosfdNSFC J"'mopagc.htnII National WeD Owner Association (NWOA) The Nalional Wen ()wDen, Association is an ooline wociarioo ~ comprchcosi.c and UH<>da1c information on the purchase aod IIIIÌIItCtUIDCC of water wells. Created by the NGWA. the NWOA site featUJ"eS infonnation on bow to awo a ¡rivate water system, how 10 maintain a well. and bow to protect the water supp1y. Visiron to ¡he site can also fiøJ a searchable list of water weD cœtraCtorS aod informatioo on the namre of grouøl water resources. hUp:l/www.weDowner.org Water Quality Association (wQA) The WaIcr Quality Association is an intcmational trade associalion rqxcscuting the household, commercial, industrial, and small community water treaIIDen1 industry. WQA is a resoum: of infrtmation, product testing, and professional certification for water usen. ContaCt the WQA fIX' mere information 00 home treatment systemS. (800) 74'1-4Z34 htlp1"""'.wqa.org {(~~( Santa Clara Valley Wat.er Dist.rld 6 ßI\ County olSanla Clar. o.¡........olb"'.........LoIw...... ~ 5750 A!mad<n Expwy San Jose:. CA 95118 (408) 265-2600 www.heynoah.com 2220 Moorpark Avenue San Josc:. CA 95128 (408) 299-6060 www.EHinfo.org o Printed on recyded paper using soy-based inks.. 5/01. 7K. YD 1(- S2- <"' DailyBulletill.com - News , Article Search ~ no· - "sueSCRI8E~-¡ 'PERSONALS'/MAAKETPLACE--', Bank of America ~ .~RT$ I IJ.ENTERTAlNMENT: aUSINESS I LIVING I OPINIONS ! HEALTH ¡ FILM I II rJ] EMAIL ARTICLE [I LINK TO ARTICLE Jè\ PRINT ARTICLE Article Published: Saturday. _r22. 2003-6:46:16 PM PST LA-Z·ßOYr. Advanced Search c;. Debate continues on risks of perchlorate levels Archive Search Marketplace Place an Ad AdHound MyUst Autos Employment Homes Rentals SpecIal Offers Personals Obituaries Business Directory worship with us Special SectIons dasslfteds News Route 66 Religion Traffic State I Nation I World Weather Newsletters Special Reports Rancho Cucamonga Fontana/Rtalto Chino VaHey Jurupa Valley/Noreo Upland/Claremont Pomona/Diamond Bar La Verne/San Dimas Ontarto/Montclair David Allen Our Past Sunday's Best SOciety Lottery Columnists Coffee Break Flash games (rlckler Crossword Horoscopes Gosslp Sports Challenge By SCOTT VANHORNE STAFF _k-II:K RELATED Jan. 21: · Rialto sues over water contamination Oct. 17: · Judge questions perchlorate fine Oct. 8: The chemical seeped into the groundwater dozens - Perchlorate pollution suspects play the of years ago, and people drank n without knowing. blame game Oct. 3: No one bothered to test for the rocket fuel component until 1997. - S.B.: Landfill not polluter Suddenly, perchlorate was everywhere. ~;:r2~iII inches ils way to Davis n turned up in Riano, Colton, Redlands, Fontana and Lorna Linda wells and was detected in water supplies in 13 other states. Water providers screamed for regulations, but none came. Sep, 10: · Committee OKs perchlorate cleanup funds Aug. 22: · Worker: T oxics bUrned at site Environmentalists and groups with perchlorate ties Aug. 7: such as the Defense Department began battling - Feds agree 10 perchlorate probe over what lavel in drinking water is safe. Jul. 14: Corporations, water providers and health officials - Rialto pUJ1lues water savings sank millions into studies and treatment systems to remove the chemical, but six years after Its May,7:. widespread discovery, perchlorate remains an - Senator writes for cleanup of water enigma. Those. examining adun exposura reported Apr. 28: trace amounts on many local wells are hannless, _ Perchlorate found '·n lett œ while sáentists conducting experiments with u pregnant rats concluded the chemical causes brain abnonnalities in newboms. OTHER ARTICLES IN THIS SECTION There's no proof the chemical causes cancer, and the Califomia Environmental Protøction Agency 212812005 doesn't consider perchlorate a canœr-œusing - Crumble continues in Phillips Ranch agent, yet politicians, newspapers and - Median home prices nearing $500.000 environmentalists have caned ft a carcinogen. - NASCAR ace deals for charities "I think in the U.S. we have a basic mental concept -ICTN news channel signs off that if you can measure it in the water ft shouldn~ - Inmate's input on move questioned be there,' said Dr. Steven Lamm, a Washìngton, - Officials: Upland eyeing Hesperia's D.C., pediatrician who conducted a perchlorate city manager exposure study for American Pacific Corp., which _ Everything you need to know manufactures the rocket fuel component. about NASCAR . West Nile virus found in Ontario chicken - Suspected car thief leads police on a chase - Grove Theatre makes comedy casting Local wells The trace amount of perchlorate in many local wells was undetectable until April 1997 when a California Department of Health Services engineer http://www.dailybulletin.comlStorieslO.1413.203%7E21481% 7E I 787262,00.html He ~ /~·~_:Ú:':,::\ , ;.i¡,':i¿~: .~. ';'~" . ''''''':. .~ :.~ ~ih 2/26/2005 {(~S] V811ytlUJletm.com - News Sports Lakers / NBA Dodgers / MLB Angels / MLB LOCiOI Colleges Kings / NHL USC UCLA NFL Special Reports Prep Sports Sports Challenge Sports Columnists other Sports Horse RacIng U·Entertainment Film TV Musiç Gossip DIning Living Travel Food Health Business Opinions Services Subscribe Pay / Renew Vacation Holds Delivery Problems change of Address Info Jf .----.---. _.- - _._-.---- ---~~ I Stop mlssln; calls \¡¡ i willi. you're onlln.' " , ra1fl!4WJmzti%f'¡, discovered a method that changed the deteCtion level from 400 parts par billion to 4. One ppb is equivalent to a half teaspoon of the chemical in an Olyrnpic-sized swimming pool, which holds about 660,000 gallons of water. The innovative technique created widespread concem among environrnenta~sts, especially after minute amounts 01 perchlorate were found in 1IIe Colorado River, a drinking source for about 20 miHian Southern California, Nevada and Arizona residents. The chemical In water supplies came mostly from plants 1IIat manufactured the compound and missile production sites, where perchlorate was routinely washed out and replaced because of its short shelf-life_ - -;:,- - -- - call _ Firefighters contain fire in single-family home ~ Freeways to dose briefly for wire work _ Organizations help school grow garden _ Bone marrow drive planned in Rancho - Thirty cited in truancy sweep at Montclair High _ Chino Valley school board still working an criteria _ Students chart dean boat run under sun - Klters let it fly as they get high and mighty - Date book Kerr McGee Corp_ and Lockheed Martin Corp., which manulac\Ured 1IIe rocket fuel ingredient for 1IIe military, joined forces with other perchlorate users and makers to create the Perchlorate Study Group and the Council on Water Quality. The corporations helped fund numerous studies, including many that reported low levels of perchlorate are harmless to most people. "Our goal is to get the information out: said James Strock, a foomer U.S. EPA law enforcement officer working as a consultant for 1IIe Council on Water Quality. "Irs in everyone's interest to get the best scientific data when they are dealing with an issue 1IIat involves public hea~h.' Standards and studies A trict ndard of 20 military bHlions of dollars in ma . atory nl18l1Cl8l nn. Tha U.S. EPA reports 1 ppb would be a protective level. California water regulators, still " settling on a recommended maximum. are considering between 2 and 6 ppb. ) Slate water oviders can serve water with an amount of ~chlorate, but they have to lei eir governing b I8S ON a ppb. HeaJIh ófficjals also recommend s or --------- b or _ could cost the corporations and the nup costs. A highar level would minimize t~ ---- Perchlorate levels in Incal weUs ranae from a hiah of 620 ppb to a low of 4.6 ppb, but a majority are In the teens or lower. One study that received funding from 1IIe Perchlorate Study Group reported that levels of about 200 ppb have no effect on adutts. The study involved 37 men and women who drank perchlOrate-tainted water for 14 days. clentists tested rticipants' reactìans b measuring iodine uptake in their thyroids and hormones a gland There Is universal agreement that perchlorate blocks iodine receptors in the 1IIyroid. The deba e is over can cause rm. - )t Thyroid health The 1IIyroid needs iodine to produce hormones for metabolism as well as neonatal and) newborn brain development. The hormones are so important every child born In the United States is tested to make sure he or she has sufficient amounts. 'MIlle the chemical had no effect at 200 ppb, scientists noted that it blocked iodine uptake about 70 percent at 17,000 ppb. The higher dose stopped some iodine from entering 1IIe thyroid, but did not reduce the hormones produced. Scientists said no reduction occurred because the thyroid stores enough hormones to last 2/26/2005 http://www.dailybulletin.com/Stories/O. 1413 ,203% 7E21481 % 7E I 787262,OO.html It - :flf DailyBuJletin.com - News 1< 'i I'age j OI ) 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 two times the needed amount make up for temporary iodine uptake reduction, researchers said. The 2002 study is also the basis for the standard proposed by California officials. The state EPA took the 200 ppb no-affect level and reduced ~ considerably to take into account fetuses, pregnant women and those with under-perfonning thyroids. Richard Pleus, a Seattle toxicologist aQd one of the study's co-authors, said California officials must have "mislnterprete(' me research. "At a dose below the threshold to a possible effect, you are not going to see anything happen,' he said. "The concentration is so low even drinking two liters a day is Insignificant.' Environmentalists said the study didn' address effects on developing fetuses or long-te~_ per ora e ex ure. ." e don't know how the population as a whole would be reactin to this exposure,' said G u Ir or 0 SQen a I a e California nVlfonmen a eaijh Hazar "The study subjects were healthy, and they had a lot of iodine in their diets.' Rat research f- The Envi mental World who would Ii ISCOUntS the human studies and points instead to research lca. .1 b, . rats ex ~Eld to t e Jt "Thafs how we test drugs in this country,' said Renee Sharp, a spokeswoman 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 ij 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 aren' 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 conclusions,' said Hal Schwartz, a clinical professor of medicine at UC Irvine. Schwartz participated in a recant symposium of scientists who conctuded the animal rasearch did not prove perchlorate caused the brain abnormalijies seen in exposed rat pups. But Schwartz said the chemical deserves more study. "Perchlorate can be dangerous,' he said. "The Issue is what concentration is dangerous.' No smoking gun Environmentalists also point to an Arizona Department of Health Services study that compared levels of thyroid-stimulating hormones in newborns in Yuma and Flagstaff between 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 harder because their mothers drank the CQntaminant. But one of the study's co-authors said the research is no smoking gun. http://www.dailybulletin.comlStories/O.1413.203%7E21481%7E1787262.00.html ~~-( ~ 2/26/2005 !l5 J /1-5) \0 <= \ l., .Q 'v¡ \/'0 ,I \¡ ~ " "" .i:ì <> 'J B ~. '" ~ c. ~ c. ~ III ~ , ~ ro ~ Q ------.. C'I to ~ to ~ :§ -è is,) "5 v ... ..c > ¿ ~ ~ c4, 00 \0 v 0:0 ~ l./I 0 0\ J;;; ~ro Üc> G::J ~ ~,g ?""-~ 1"'\ ;;:: 0.-. ~ I C v C,,- N N 'vi:;) '^ i5 o c. t 1c...3 ~ .- to c. \ f\\ ...... C ~ tJ« \')< t . cl'.. ~' ~ ^" 0 0. f'\j ,\ L '-'\ c. ro-g C ro 0 o ro "" I I II "^ \ (::¡ 10 B ~- <¡-.. N =æ ~ '" rv ~ ¡"" , '--D ¡......, - c: ~ c. ~ "" 'L, I/) "' ~ ';)- I Q. 0 1;; ",c. 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C ell E E o \,J 'V .~ - ~ " F3 ~ R \) ~ ; ;-:J \\-. ~ ~ ~ ~r:§ ~ (. \f' ~ II! .~ c:, ~ f "'>" "a r-,Jo, ~ "C. .~ ',- ' 4( I .~ ~J ..~~~ I~I~ f I' '" il~ \J ~ III G { ~ . &~ ~ ell W'~ E ¿ ~ ql"t ~ "0 ..::'.: ~ ~ ~ ~\D ~ '" (( -~ ( EXHIBIT E ~ary Chao From: Sent: To: Subject: Sue Tippets [stippets@valieywater.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 S,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 OS, 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 1 - 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 II-~.L Mrs. Helgreson) to the CitJ 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 ((-10 3 DISTRICT COUNSEL ATKINSON. FARASYN, LLP HAROLD S, TOPPEL , :\'\ ".t.BITJ48,. ~~t"1s ,. .0% ,"'" ' ~ .,.. ~" - <'SJ: ......... 4SL/SIlf.\) '\: BOARD OF DIRECTORS DISTRICT MA.NA.GER.ENGINEER MARK THOMAS 8: COMPANY, INC. DAVID E. ROSS WILLIAM A. BOSWORTH DR. JOSEPH F. BROWN JOHN M. GATTO CURTIS B. HARRISON WENDELL H. KERR, JR. 20833 STEVENS CREEK BOULEVARD, SUITE 104 CUPERTINO, CALIFORNIA 95014-2154 (408) 253-7071 PHONE . (408) 253-5173 FAX 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 ftnal 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 plumbing 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 infonnation. Sincerely yours, MARK THOMAS & COMPANY, INC. District Manager-Engineer ~k~ «If David E. Ross CHB:vl SUPPlYING SANITAav SEWERAGE SERVICES FOR: (m Of CUPERTINO, PORTIONS OF THE CITIES OF SARATOGA, SUNNYVALE, Los ALTOS AND SURRGUND\NG UNINCORPORATED AREAS (( -{p l' www.cuperfinClsonitarydistricr.com Cupertino Planning Commission EXHIBIT G January 25, 2005 development; is it the right decIsIOn to deny housmg prOjects ana 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 the North DeAnza area, 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 s"ense that· 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 the commissioners in . idually to set a meeting date. ed the public, Fine Arts Commission and Housmg Commission for their 3. TM-2004-0S, 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 Permit 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 Permit 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 the site analysis, private road, California Water Service remainder parcel, tree 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 unattractive structures on the water company land and questioned if the streetscape would be enhanced when the view is open to the public. tI-iß :) 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 ofthe 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 to be either a capped off well or a water 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 present 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 ftom 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 ftont. 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. /f-iJ~ 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 total 5 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 ITont 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 ITont yard provision or policy to maintain their properties. Com. Giefer: · Asked what the large concrete object 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, California Water Service Company and Shawn Hefner, Califomia 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 from have the capacity to do so. He said he could not assess the future needs, but noted there were large pipes undemeath 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 concern that as the city grows or the metro area grows, this will be three lots they will lose. f(~'7 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 ofland, they would still have the opportunity to make improvements to the property. · In Cupertino they currently have three wells that 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 if there 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 to 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 the 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 trom the needs of the community. · Talked to a neighbor residing across trom the lot; desired some trees up front, and will make provisions for trees as well. · Third neighbor expressed concern; resides across the street trom 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. ìI-~r 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 be offered to bear the cost oflandscaping needs at the front of the Wong's home, planting and developing a hedge so that it would obscure the street from their perspective and would satisfy some of the blockage of the fung shui. · He said he felt the proposed mitigation and offer to pay for the landscaping would address the fung shui concerns. · 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 of the 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 Planning Commission expressing her concems 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 concerns 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 project. Lei Wong, Greenleaf Drive: · 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. 11-&9 Cupertino Planning Commission 18 January 25, 2005 · Said many of the neighbors are opposed to the project. Lynn Carter, Greenleaf Drive: · Resides directly across trom the water company. · Expressed concern about the wrought iron fence, and suggested a more appropriate fence with landscaping in !Tont of the water company property. Vice Chair Miller: · Clarified that the house behind the pumping station would not be 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 !Tom their piping system or underground pipes. · Said as part ofthe 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 !Tom the asphalt or concrete. It also may offer Mr. Wong some visual relief. · Staffmay suggest the 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 !Tont of their front yard. Com. Saadati: · Relative to the driveway, suggested narrowing the !Tont portion to 20 feet; fire trucks can still get through; their main concern 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 concerns. · 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 of lot one. ((-7D Cupertino Planning Commission 19 January 25, 2005 · Said she would prefer to continue the application, 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 retained 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 water company be part of the plan review process to 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 to installing sewer lines. · He noted that the water company pointed out that the aquifer is a substantial distance below the surface which also minimizes the potential for contamination. · 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 Rl 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 of looking 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. Il-1{ Cupertino Planning Commission 20 January 25, 2005 Chair Wong: o Thanked the neighbors for attending the meeting; the applicant worked hard to address their concerns. o 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 front of the wrought iron fence. Motion: Motion by Com. Saadati, to approve Application TM-2004-05, including 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-2004-1O) Greg Pinn (0 Park Village) 10745 No. nza Blvd. (former anta Barbara Grill) Rezoning of a 1.37 acre parcel from P (CG, ML, Res. 4-10) to P(CG, ML, Res 35). Tentative Map to create 46 residential cond iniums. Use Permit to demolish a vacant rest rant building and construct 46 residential units chitectural and site approval for 46 residential u Tentative City Council date: February 1, 5 Mr. Cbao o Clarified that the tentativ for 46 residential units, not Mr. Chao presented the staff repo o Application is for a use permit demo· the former Santa Barbara Grill and construct a 46 unit condominium building a podium ga ge. o A tentative map and arch' ctural site approva also requested to allow for the 46 units. o Applicant is also rezo . g the property to be cons ent with the General Plan in terms of allowable density u 0 35 dwelling units per gross a e. o Reviewed the fol wing, as set forth in the attached sta eport: Project description, General Plan and zonin ,North DeAnza Conceptual Plan, Architec 1mprovemen ,Traffic Analysis, and Parking. Christy An Choy, Fehr & Peers Associates: o Revie ed the Trip Generation Analysis conducted, based on the trip rat trom the Institute of Tra portation (IT), resulting in the determination that the trip generation the residential tect would be 270 new daily trips, 20 a.m. peak hour trips, and 24 p.m. peak hour trips. The /r-72.. March IS, 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 from 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 from 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 Cupeliino 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 CUlTent regulations set forth guidelines for location of wells with respect to sewer and storm drain lines. In this project, both the sewer and stOn1l drain lines will be at least 50 feet away and are in compliance 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 period 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. "'tI! [1-73 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 Resources that indicates there should be at least SO 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 sunounded by a lot of trees, and there was some noise from 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 refenal 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 cems 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 operaf as to do with Mr. Tsai' s home, and in order to separate free areas tì'om 1(- Î~ EXHIBIT C slR) 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 of the City of Cupertino (City), and pursuant to SLR International 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 1). The work included preliminary data collection and analysis of water from the production well. The purpose of the well sampling was to detennine if new construction activities associated with the Greenleaf Subdivision may impact the production well, in part by identifYing chemical concentrations currently present in the groundwater. The results of this sampling are presented herein. Details of the well sampling event are presented below, and a brief discussion of potential impacts is also provided. ACTIVITIES PERFORMED As outlined in the proposal, the following tasks were completed. Task I - 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. Groundwater 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 to be present in the immediate vicinity of the proposed subdivision or the production well. 581: 3451-C Vincent Road Pleasant Hill, California 94523 Telephone: (925) 944-2856 5LR: 117 Bur9undy Court Martinez, California 94553 Telephone: (925) 229-1411 , I-} J Report_v2.doc Mr. Gary Chao Odober 10, 2005 Page 2 of 5 Task 2 - Well Sampling and Analvsis On September 8, 2005, SGI 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 Laboratories of Bakersfield, California. SGI 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 EPA Method 300; and ? Perchlorate by EP A Method 314. 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 to BC Laboratories, and analyzed for SVOCs. These analyses are typical of potable water supplies. All potable water supplies undergo regular sampling and analysis to 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 consistent with the analyses that these potable water suppliers must conduct on their water, including the drinking water provided to the City of Cupertino. The analytical methods used were developed by the U.S. Environmental Protection Agency to be in compliance with 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 the Santa Clara Valley Water District (SCVWD), to discuss 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, and the lower limit at which their presence can be detected in a sample is known as the detection limit. It is desirable for the detection limit to be below the level at which a chemical may cause toxicity. These levels are known as "action levels". [n this way, the absence of a detected concentration in a sample, or a detected result that 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 laboratory analytical results from the production well sampling on September 8 and 28,2005. The laboratory analytical report is presented in Attachment A. No VOCs were reported in the water sample. [1-/0 Mr. Gary Chao October 10, 2005 Page 3 of 5 Metals Four metals were detected, 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 metals are noncancer chemicals, and are not considered to have any carcinogenic activity by USEPA 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 metals are associated with no risk to human health. The detected concentrations are well below these threshold concentrations. These metals are typically present at low levels in domestic water supplies due to their natural occurrence in soil and their relatively high water solubility relative to other metals. According to infonnation from the Agency for Toxic Substances and Disease Registry, typical background concentrations of copper in drinking water supplies across the county range between a few parts per billion and 10 parts per million. The detected copper concentration in this sample was on the low end of the reported range for public water supplies. For nickel, the average concentration in uncontaminated drinking water ranges between 2 and 4 ppb; we found 2.9 ppb in our sample. For vanadium, drinking water 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, typical 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, butylbenzylphthalate (5.1 ppb), delta-SHC (0.031 ppb), di(2- ethylhexyl)adipate (0.10 ppb), and methoxychlor (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 that these chemicals are likely not present in the water, but instead represent contamination from the laboratory. Sutylbenzylphthalate is a typical laboratory contaminant. Di(2-ethylhexyl)adipate is used in making plastics, and is also used as a solvent. Delta-SHC and methoxychlor are pesticides. Not only were these three latter chemicals detected in the 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 represent 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 health. General Chemistry Detected values were reported for most of the general chemistry 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 parameters are typically detected in public water supplies due to their ubiquitous presence in water. The chemicals were detected at concentrations below their action levels. Perchlorate was not detected in the sample at a detection limit of 4 ppb (below the action level of 6 ppb). Therefore, chemicals and physical parameters are present at levels within acceptable limits for safe domestic use of well water. II-II 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 production well, the well is not currently impacted by any site-specific or regional activities. QUALIT A nVE RISK EV ALUA nON 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 It bgs. The new water and stonn drain lines from the subdivision are required by the SCVWD to be no closer than 50 feet to any existing well facility. This requirement 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 activities 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 the screened zone of any water well. There are several intervening aquifer layers between 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 this 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 these two aquifer zones, so any contaminants 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 water piping activities will be contained within the first encountered groundwater, and is likely to be largely suspended matter due to the invasive soil activities. No impacts are expected 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. Groundwater can be considered to represent a layer of free-flowing water beneath the ground, which we can relate to a large puddle of water. Both 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 anything spilled on top of the sponge would diffuse through the sponge and reach the water. Right above the water, 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 material reaches the first puddle, it will diffuse into the puddle and mix in the water. A very small amount of that material may contact the sponge beneath the puddle and stick to that lower sponge. If the lower sponge is very wet, some may even diffuse downward into the sponge. However, the very small amount that 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 amount 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 activities 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 1!-71 Mr. Gary Chao October 10, 2005 Page 5 of 5 these vehicles will eventually deposit on the ground surface, which will either be pavement, if on the street, or onto topsoil. [n 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 data collected and analyzed from the groundwater well, as well as analysis of the proposed development plan, we conclude that there is no potential for activities associated with the new development to impact the water well or result in any risk to human health. Please contact either ofthe undersigned with any questions or comments regarding this project. Sincerely, The Source Group, Inc. SLR International Corp 1fl~1/Jæ~ ft441 t. kø Mark E. Stelljes, Ph.D. Principal Toxicologist Matthew C. Sutton, P.E. 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(/ Q)co -;::C"J ~O> Eco rno (/l!) ~o Q) ...... ~ ~~ OJ E .S ::> -"'z .S .c ~ rn O...J Wo C::C!J » C m ID > m .s::: ::J o » ~ II) '<t m o II) o - 0) o - 0) o C o è: o - m ~ o .Q m ID .s:::ID ;'E .Qü 'Om ID- .~ § ~ U ID 0 ~ - '" () ID ID - ~ 0.- E ID m ID "'- ~ ID 0'" -m '" ID ~ã. z,,¿ m 0 Co. m ID - ~ 0", ~:ë "S~ ~.5 ~ C ID ~ .s::: () _u IDc ~ 0 m U '0 '" IDc (/) .Q .Qû) U ID C ::J WO- Q) ~ ::J - rn C OJ Uj " Q) N 'C o .s::: - ;;¡ ~ Q. Q) c:: Q) U .~ >; Q) ã; C/) ~ - ID C U Æ C IHI9 èïj 0 ¿ .~ " e- " .5 È" . ~ "E :s o ~ Ë E -ti 8 t.i ." " Oi H g . 'J:: 00 "- .'" .- " ' 8.¡::¡ "'" " - ..e- ~::g :-=- ~ ª::¿ 8..... ~ . 0_ 0_ .'" E"t' ~~ v'" 0_ - - .g ::ß 0- E . 200 .:¡;;¡!, ~~ ~~ ~"" .sû .!:;c..;:: E ~ ~ u .-; .£¡:Q ~ . o t: " ~ o 0 .~ U -ª ~ ~~ ~ ~8 ..e ~.:;¡: ~ :s .E J " -,; ~ ;¡; 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 .org> 04/20/2005 06:41 PM Charlene Shaw/DC/USEPA/US@EPA Subject RE: Information for Drinking Water Testing Sharlene, 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 EXHIBIT D To cc 11-/2D 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. 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