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EXC-2014-09b City of Cupertino 10300 Torre Avenue Cupertino,CA 95014 (408) 777-3308 C U P E RT 1 N t'�► FAX (408) 777-3333 Community Development Department November 26, 2014 RH Associates Attn: Daryl Harris 22867 Sunset Ridge Dr Auburn, Ca. 95602 SUBJECT: PLANNING COMMISSION ACTION LETTER—EXC-2014-09, TR-2014-42 This letter confirms the decision of the Planning Commission, given at the meeting of November 25, 2014, approving a Hillside Exception to allow the construction of a new 5,213 square foot single family residence with a 1,412 square foot basement on slopes greater than 30% and a Tree Removal Permit to allow the removal and replacement of three (3) protected trees; a 17.7", a 26.6" and a 23.1" diameter Coast Live Oaks in conjunction with the development of a single family hillside residence, located at 21730 Rainbow Drive, according to Planning Commission Resolution No.(s) 6768 and 6769. Please be aware that if this Permit is not used within a two-year period, it shall expire on November 25, 2016. Also, please note that an appeal of this decision can be made within 14 calendar days from the mailing of the notice of the decision. If this happens, you will be notified of a public hearing, which will be scheduled before the City Council. Sincerely, �� ! Colin � J Associate Planner Planning Department Enclosures: Resolution 6768, 6769 CC:Jonathan Yao or Cathy Li, 1029 White Oak Dr,San Jose Ca 95129 EXC-2014-09 CITY OF CUPERTINO 10300 Torre Avenue Cupertino, California 95014 RESOLUTION NO. 6768 OF THE PLANNING COMMISSION OF THE CITY OF CUPERTINO APPROVING A HILLSIDE EXCEPTION TO ALLOW THE CONSTRUCTION OF A NEW 5,213 SQUARE FOOT SINGLE FAMILY RESIDENCE WITH A 1,412 SQUARE FOOT BASEMENT ON SLOPES GREATER THAN 30% AT 21730 RAINBOW DRIVE SECTION I: PROjECT DESCRIPTION Application No.: EXC-2014-09 (EA-2014-07) Applicant: Daryl Harris Location: 21730 Rainbow Drive, APN# 366-37-007 SECTION II: FINDINGS FOR EXCEPTION WHEREAS, the Planning Commission of the City of Cupertino received an application for a Hillside Exception, as described on Section II of this Resolution; and WHEREAS, the necessary notices have been given in accordance with the Procedural Ordinance of the City of Cupertino, and the Planning Commission has held one or more Public Hearings on this matter; and WHEREAS, the applicant has met the burden of proof required to support this application, and has satisfied the following requirements: 1. The proposed development will not be injurious to property or improvements in the area nor be detrimental to the public health and safety. The development will comply with planning, building, public works and fire department regulations to protect public health and safety. 2. The proposed development will not create a hazardous condition for pedestrian or vehicular traffic. The development is setback from the common driveway and does not create a hazardous condition for pedestrian or vehicles. 3. The proposed development has legal access to public streets and public services are available to serve the development. The residence will have access to Rainbow Drive and all utilities are located in the abutting driveway. 4. The proposed development requires an exception, which involves the least modification of, or deviation from, the development regulations prescribed in this chapter necessary to accomplish a reasonable use of the parcel. The exception for development on slopes greater than 30% is the only exception required. The development otherwise meets all other RHS development standards. 5. All alternative locations for development on the parcel have been considered and have been found to create greater environmental impacts than the location of the proposed development which is located in the middle of the lot that avoids encroaching on a prominent ridgeline and Resolution No.6768 EXC-2014-09 November 25,2014 minimizes the number of oaks that must be removed. Other driveway alignments will cause more grading and need retaining walls. 6. The proposed development does not consist of structures on or near known geological or environmental hazards that have been determined by expert testimony to be unsafe or hazardous to structures or persons residing therein. Geologic studies demonstrate the lack of unmitigable geologic hazards. 7. The proposed development includes grading and drainage plans that will ensure that erosion and scarring of the hillsides caused by necessary construction of the housing site and improvements will be minimized. Proposed grading will minimize visible retaining walls and drainage plans will minimize the introduction of storm flows into steep, hillside soils. 8. The proposed development consists of structures incorporating designs, colors, materials, and outdoor lighting which blend with the natural hillside environment and which are designed in such a manner as to reduce the effective visible mass, including building height, as much as possible without creating other negative environmental impacts. Grading design will minimize visible retaining walls. Building materials and colors will meet RHS design standards. 9. T'he proposed development is located on the parcel as far as possible from public open space preserves or parks (if visible therefrom), riparian corridors, and wildlife habitats unless such location will create other, more negative environmental impacts. The proposed residence will not be visible from the nearby public open space preserve. 10. The proposed development is otherwise consistent with the City's General Plan and with the purposes of this chapter as described in Section 19.40.010. The development is consistent with the RHS zoning ordinance which implements the General Plari s hillside protection policies. NOW, THEREFORE, BE IT RESOLVED: That after careful consideration of the initial study, Environmental Review Committee recommendation, maps, facts, exhibits, testimony and other evidence submitted in this matter, the Commission finds that the project with mitigations incorporated will not have a significant environmental impact and adopts a mitigated negative declaration with a mitigation monitoring report (file no. EA-2014-07) and application no. EXC-2014-09 is hereby approved; and That the subconclusions upon which the findings and conditions specified in this Resolution are based and contained in the Public Hearing record concerning Application EXC-2014-09, as set forth in the Minutes of the Planning Commission Meeting of November 25, 2014 and are incorporated by reference herein. SECTION III: CONDITIONS ADMINISTERED BY THE COMMUNITY DEVELOPMENT DEPT. 1. APPROVED EXHIBITS Approval is based on the plan set titled: "A PROPOSED RESIDENCE FOR:/ JONATHAN YAO & CATHY LI/21730 RAINBOW DRIVE CUPERTINO, CALIFORNIA" dated July 2014, and consisting of 16 sheets labeled A1 through A9, C.0 and C-1 through C-6 except as may be amended by the conditions contained in this resolution. Resolution No.6768 EXC-2014-09 November 25,2014 --------------------------------------------------------------------------- --------------------------------------------------------------------------- 2. EXTERIOR BUILDING MATERIALS/TREATMENTS, LANDSCAPING Final building exterior treatment plan (including but not limited to details on exterior color, material, architectural treatments and/or embellishments, lighting, retaining walls and landscaping) shall be reviewed and approved by the Director of Community Development prior to issuance of building permits for compliance to RHS zoning and other relevant regulations. Any exterior changes determined to be substantial by the Director of Community Development shall require a modification approval with neighborhood input. 3. NOTICE OF FEES,DEDICATIONS, RESERVATIONS OR OTHER EXACTIONS The Conditions of Project Approval set forth herein may include certain fees, dedication requirements, reservation requirements, and other exactions. Pursuant to Government Code Section 66020(d) (1), these Conditions constitute written notice of a statement of the amount of such fees, and a description of the dedications, reservations, and other exactions. You are hereby further notified that the 90-day approval period in which you may protest these fees, dedications, reservations, and other exactions, pursuant to Government Code Section 66020(a), has begun. If you fail to file a protest within this 90-day period complying with all of the requirements of Section 66020, you will be legally barred from later challenging such exactions. 4. GENERAL PLAN DEVELOPMENT ALLOCATION The applicant's project is granted a General Plan Development Allocation of one dwelling unit from the Other Residential Neighborhoods allocation pool. 5. LANDSCAPE PROJECT SUBMITTAL Prior to issuance of building permits, the applicant shall determine in consultation with staff whether a full landscape project submittal per section 14.15.040 of the Landscaping Ordinance is warranted. T'he Water-Efficient Design Checklist (Appendix A of Chapter 14.15), Landscape and Irrigation Design Plans, and Water Budget Calculations shall be reviewed and approved to the satisfaction of the Director of Community Development prior to issuance of building permits. 6. LANDSCAPE INSTALLATION REPORT In conjunction with any required landscape project submittal, a landscape installation audit shall be conducted by a certified landscape professional after the landscaping and irrigation system have been installed. The findings of the assessment shall be consolidated into a landscape installation report. The landscape installation report shall include, but is not limited to: inspection to confirm that the landscaping and irrigation system are installed as specified in the landscape and irrigation design plan, system tune-up, system test with distribution uniformity, reporting overspray or run-off that causes overland flow, and preparation of an irrigation schedule. The landscape installation report shall include the following statement: "The landscape and irrigation system have been installed as specified in the landscape and irrigation design plan and complies with the criteria of the ordinance and the permit." 7. LANDSCAPE AND IRRIGATION MAINTENANCE In conjunction with any required landscape project submittal, a maintenance schedule shall be established and submitted to the Director of Community Development or his/her designee, either Resolution No.6768 EXC-2014-09 November 25,2014 --------------------------------------------------------------------------- --------------------------------------------------------------------------- with the landscape application package, with the landscape installation report, or any time before the landscape installation report is submitted. a) Schedules should take into account water requirements for the plant establishment period and water requirements for established landscapes. b) Maintenance shall include, but not be limited to the following: routine inspection; pressure testing, adjustment and repair of the irrigation system; aerating and de-thatching turf areas; replenishing mulch; fertilizing; pruning; replanting of failed plants; weeding; pest control; and removing obstructions to emission devices. c) Failed plants shall be replaced with the same or functionally equivalent plants that may be size- adjusted as appropriate for the stage of growth of the overall installation. Failing plants shall either be replaced or be revived through appropriate adjustments in water, nutrients, pest control or other factors as recommended by a landscaping professional. 8. PERMIT EXPIRATION T'he subject hillside exception approval shall expire two (2) years from the date of approval if not used. 9. ACCURACY OF PROJECT PLANS The applicant/property owner is responsible to verify all pertinent property data including but not limited to property boundary locations, building setbacks, property size, building square footage, any relevant easements and/or construction records. Any misrepresentation of any property data may invalidate this approval and may require additional review. 10. PRE-CONSTRUCTION MEETING AND CONSTRUCTION MANAGEMENT PLAN Prior to commencement of construction activities, the applicant shall arrange for a pre-construction meeting with the pertinent departments (Building, Planning, and Public Works) to .review the prepared construction management plan, to ensure that construction complies with the conditions of approval, staging of construction equipment is appropriate, tree protection measures are in place, public access routes are defined, and noise and dust control measures are established. 11. BUILDING PERMIT SUBMITTAL REQUIREMENT Applicant shall submit an annotated response to all of these conditions of approval with his building permit submittal. 12. GEOTECHNICAL REVIEW Prior to building permit approval, the applicant shall comply with the recommendations outlined in the Cotton Shires & Associates, Inc. Geologic and Geotechnical Peer Review Letter dated August 8, 2014 and pertaining to the proposed development. 13. LANDSCAPE PLAN As part of the building permit submittal the applicant shall prepare a landscape plan that screens visible retaining walls and grading scars from public street views. The screening shall be accomplished through a combination of trees, shrubs and vines and pigmented concrete matched to the surrounding soils to the satisfaction of the Director of Community Development. 14. GRADING Applicant shall strive to reduce the extent and quantity of grading. City staff shall work with the applicant and the Santa Clara County Fire Department to determine if the Fire Department requirement for an onsite fire truck turnaround can be eliminated in order to reduce grading. Resolution No.6768 EXC-2014-09 November 25,2014 --------------------------------------------------------------------------- --------------------------------------------------------------------------- SECTION IV: CONDITIONS ADMINISTERED BY THE PUBLIC WORKS DEPARTMENT 15. GRADING PLAN Conceptual Grading and Drainage plans will need to be modified at the Building Permit stage to satisfy Public Works' preliminary comments regarding proposed storm drain systems. 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. 16. DRAINAGE The proposed infiltration system shown on sheet C-3 is not recommended for hillside projects unless the project geotechnical engineer provides a stamped and signed report with recommendations for installation, and the City's geotechnical engineer reviews and approves the recommendations. The report must include an evaluation of the existing soils and the proposed device with recommendations, and letter stating that the Civil Plans have been reviewed and are consistent with their recommendations. Consider an alternative retention system with facilities that meter storm runoff to a level consistent with the pre-project condition. Storxn drainage lines and other constructed drainage features shall be sited to avoid crossin�the cano�� driplines of the protected oak trees. Drainage shall be provided to the satisfaction of the City Engineer. Hydrology and pre- and post- development hydraulic calculations must be provided to indicate whether additional storm water control measures are to be constructed or renovated. 17. BEST MANAGEMENT PRACTICES Utilize Best Management Practices (BMPs), as required by the State Water Resources Control Board, for construction activity, which disturbs soil. BMP plans shall be included in grading and street improvement plans. 18. EROSION CONTROL PLAN Developer shall 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. 19. UNDERGROUND UTILITIES 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. 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. 20. ABOVE GROUND EOUIPMENT ENCLOSURES Electrical transformers, telephone cabinets and similar equipment shall be placed in underground vaults. The developer must receive written approval from both the Public Works Department and the Community Development Department prior to installation of any above ground equipment. Should above ground equipment be permitted by the City, equipment and enclosures shall be screened with fencing and landscaping such that said equipment is not visible from public street Resolution No.6768 EXC-2014-09 November 25,2014 --------------------------------------------------------------------------- --------------------------------------------------------------------------- areas, as determined by the Community Development Department. Transformers shall not be located in the front or side building setback area. 21. 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, storxn drain fees, park dedication fees and fees for under grounding of utilities. Said agreement shall be executed prior to issuance of construction permits Fees: a. Checking&Inspection Fees: $Per current fee schedule($2,788.00 or 6%) b. Grading Permit: $Per current fee schedule($2,618.00 or 6%) c. Development Maintenance Deposit: $ 1,000.00 d. Storm Drainage Fee: $TBD e. Power Cost: '�* f. Park Fees: $Per current fee schedule ($28,875) ** Based on the latest effective PG&E rate schedule approved by the PUC Bonds: Faithful Performance Bond: 100°/o of Off-site and On-site Improvements Labor&Material Bond: 100% of Off-site and On-site Improvement 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. 22. WORK SCHEDULE Every 6 months, the developer shall submit a work schedule to the City to show the timetable for all grading/erosion control work in conjunction with this project. 23. OPERATIONS&MAINTENANCE AGREEMENT Developer shall enter into an Operations&Maintenance Agreement with the City prior to final occupancy. The Agreement shall include the operation and maintenance for any non-standard appurtenances in the public right-of-way that may include,but is not limited to, sidewalk, pavers, and street lights. 24. REFUSE TRUCK ACCESS Developer must obtain clearance from the Environmental Programs Manager in regards to refuse truck access for the proposed development. 25. FIRE PROTECTION Fire sprinklers shall be installed in any new building construction to the approval of the City. Resolution No.6768 EXC-2014-09 November 25,2014 --------------------------------------------------------------------------- --------------------------------------------------------------------------- 26. SANTA CLARA COUNTY FIRE DEPARTMENT A letter of clearance for the project shall be obtained from the Santa Clara County Fire Department prior to issuance of building permits. Clearance should include written approval of the location of any proposed Water Backflow Preventers, Fire Department Connections and Fire Hydrants (typically Backflow Preventers should be located on private property adjacent to the public right of way, and fire department connections must be located within 100' of a Fire Hydrant). 27. FIRE HYDRANT Fire hydrants shall be located as required by the City and Santa Clara County Fire Department as needed. 28. SAN TOSE WATER COMPANY CLEARANCE Provide San Jose Water Service Company approval for water connection, service capability and location and layout of water lines and backflow preventers before issuance of a building permit approval. 29. DEDICATION OF WATERLINES Developer shall dedicate to the City all waterlines and appurtenances installed to City Standards and shall reach an agreement with San Jose Water Services Company for water service to the subject development. 30. DEDICATION OF UNDERGROUND WATER RIGHTS Developer shall "quit claim" to the City all rights to pump, take or otherwise extract water from the underground basin or any underground strata in the Santa Clara Valley. 31. SANITARY DISTRICT A letter of clearance for the project shall be obtained from the Cupertino Sanitary District prior to issuance of building permits. 32. UTILITY EASEMENTS Clearance approvals from the agencies with easements on the property (including PG&E, AT&T, and California Water Company, and/or equivalent agencies) will be required prior to issuance of building permits. 33. NPDES CONSTRUCTION GENERAL PERMIT When and where it is required by the State Water Resources Control Board (SWRCB), the developer must obtain a Notice of Intent(NOI) from the SWRCB, which encompasses preparation of a Storm Water Pollution Prevention Plan(SWPPP),use of construction Best Management Practices (BMPs) to control storm water runoff quality, and BMP inspection and maintenance. 34. C.3 REQUIREMENTS Complete a Project Impervious Surface Data and LID Feasibility Form. C.3 regulated improvements are required for all projects creating and/or replacing 10,000 S.F. or more of impervious surface(collectively over the entire project site). The developer shall reserve a minimum of 4% of developable surface area for the placement of low impact development measures, for storm water treatment, on the tentative map,unless an alternative storm water treatment plan, that satisfies C.3 requirements, is approved by the City Engineer. Resolution No.6768 EXC-2014-09 November 25,2014 --------------------------------------------------------------------------- --------------------------------------------------------------------------- The developer must include the use and maintenance of site design, source control and storm water treatment Best Management Practices (BMPs), which must be designed per approved numeric sizing criteria. A Storm Water Management Plan, Storm Water Facilities Easement Agreement, Storm Water Facilities Operation and Maintenance Agreement, and certification of ongoing operation and maintenance of treatment BMPs are each required. All storm water management plans are required to obtain certification from a City approved third party reviewer. 35. WATER BACKFLOW PREVENTERS Domestic and Fire Water Backflow preventers and similar above ground equipment shall be placed away from the public right of way and site driveways to a location approved by the Cupertino Planning Department, Santa Clara County Fire Department and the water company. 36. EXCHANGE OF PEDESTRIAN EASEMENT AREAS Prior to building permit approval, the applicant shall apply to the City for a summary vacation of the 20-foot wide Pedestrian and Equestrian Easement("P.E.E".) along the front of the property. In exchange for this summary vacation of easement, the property owner has agreed to and shall simultaneously dedicate a new 20-foot wide pedestrian easement near the rear and side property lines and extend a connecting pedestrian easement along the private street with the objective of facilitating pedestrian access to the lands of the Fremont Older Preserve currently owned by Midpeninsula Regional Open Space District. The pedestrian easement shall be approved as to form by the City Attorney and shall be granted prior to the issuance of building permits for this project. The Summary Vacation of the existing P.E.E.,by the City Council shall occur prior to building permit issuance for this project. The applicant shall be responsible for the engineering drawings, plat and legal descriptions necessary for the realignment of the trail including that portion of the trail which will continue across the two adjacent properties prior to accessing the Fremont Older Preserve. The trail is relocated on the applicant's property in order to avoid the new driveway requested by applicant. The applicant shall also cooperate with adjacent neighbor(s) to help facilitate the pedestrian access through the lower gate located at the terminus of the Rainbow Drive. 37. MAINTAINING OF PEDESTRIAN ACCESS The property owner shall maintain pedestrian access through the property to facilitate access to the lands of the Midpeninsula Regional Open Space District for the life of this Hillside Exception Approval. Access can be provided either through maintaining the existing informal trail on the property or developing a new trail alignment on the property, subject to prior approval by the City, which shall not be unreasonably withheld. Resolution No.6768 EXC-2014-09 November 25,2014 --------------------------------------------------------------------------- --------------------------------------------------------------------------- PASSED AND ADOPTED this 25th day of November 2014, at a Regular Meeting of the Planning Commission of the City of Cupertino by the following roll call vote: AYES: COMMISSIONERS: Chair Brophy, Vice Chair Lee, Gong, Sun,Takahashi NOES: COMMISSIONERS:none ABSTAIN: COMMISSIONEIZS:none ABSENT: COMMISSIONERS:none ATTEST: APPROVED: /s/Gary Chao /s/Paul Bro�hy Gary Chao, Assistant Director Paul Brophy, Chair Community Development Department Planning Commission LAND8CAPE INVENTORY � �,, ,�.a„ �„o,,, � TREE REPLACEMENT MITIGATION ��� t c aaaM�L► ia ��pwp, i '� _ !� �AGA�OLIA NO �'���'' � � �At�OLU Mo �s � ��N �'a�0o�11!tM �� . 4 H �Afi�M'OtL1 11� � � �� }N��07(� i • �AG�OLM NO TOT/1l i-34'�OX T�! �/,� � 2-11 �I�CIN IIGM�OIJA 11� �� � t �o ��DKiN01N iMfTNORM YN gr1��A�i�TM�'-T��ATIOILT �,�p$ . , ._ /�1 � n aisieor.�r.�ra�► No � �s �o a�w��► No � fi 7D aYlIIdM AtIMr0�1A Y!�{ �� , s� x�ox o�rucm an��oNO � �� � x x�c a��aR�� � � x x�ooc a�e�m cRr�oqc ie n x wx o�ia�cna arr�rn�e�o � i� � x�ooc a��ac�o�,an� Na �'0�v�c,s�'"�F��'"� � i i , , �� , , ���� � / � / / � `� /�{`''� \ �f �' , Y � i�.-� � '��, ,S�' � / ,.� �� � .'� �\ ` , r� . .� i /,�0'��� �,� , i� i i�'�* • � /� � i , i �c" / � i ,� i i /� __ . �/ , � � � :�','' ��`�� � _ � t � . � I+�c � �� •��7M��/�R Y�T�i•nM '- �� ��� \ �� �� \` . ,— , , �� � . �.., . /��. . �\ ,� � . � � y � �� �,, ,�,, 8 �/!� � : // � � \ � I � �`- --_ i / � / � ` -� ��� / / ° � rp r �'�- / / �? � / '' � � �/ �i�� . : � \ � ��, o ..� 'y—t"�a* � ` t3��, �' /� / / _ ,... . ___ _ .__ - .. _ ��� � '�- ' - �• � � � � � , ,b � `` ��r _8.,�� /� �' a* , ti�. ,� �'7 L���`� � � t.�-�y� ' \ / � � /b�, `� ��� , . /�C.' �, � e , �� , '�, o . ., �—, � �! lI}'�,Y�.U��.-� e, \ \ ae � '� �� � T "-.. i � ' � �-_ r /�� .-� r � � � �� � � -�� � , � , / / ���,1r '� � `� � � � �°�e �/ � .�,' _ �. � � _,_ � - _, `' ; ; � � PARKIN�G/ ,' �1 /, , �.�•.. ... . - .r_ � r \\ ` � �� �� '' I s ,, RYY�fiY rRV11YfY � ' /•. , �. _N �:� �- ° b�� uNC�c i kA�CE D/E � � � 3 � O , � �� OTI�R 2 irACE C 1 f �/ � ��/ NDT�:ALl irACiS 10'�d0' �' 1 � -� � � �i : � �^ � � / ��� O � \/ � P.. � ,�_�r •'r�......:t..,__..�,C\�. l R e`. ��� � � � ' '_ _. \ � $ �' � � ,�� , �� � ,- � ,,, t i o �, � _�' �"_a� , � ��� t� ' � ileL_.�E�`Jr►37�' .:.r/'+'M°""..� ��.�— �__.... ..... _. t':..'.... .. . ,r�*„�,y ..'d,-' .. �° ,�,. 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C8��►.� �`pgP� 6]0 127.0 642 ' 322.9 674 3789 � 706 1710 736 17.5 TOE TOE OF BANK �. 612 LiQO 6M ! '1�3 67G �3 I 7'� 16Q7 T�D !.0 TP TOP OF PAVEIAENT PBELL 650 �,Q�� 0 10 20 40 � �3,9 y�5 •. 3�6,0 678 3020 � 7l0 i5Q6 TRC TOP OF ROLLED CURB Q 6 i TW TOP OF WALL �' 616 ]37.0 6� i 362.6 6� 2�.4 712 1,Q8 B2.s EB� 6►9' 1 ����� : ��1 • U/G UNDERGROUND 76 1 ��'�� 2 i VCP VITRIFIEO CLAY PIPE WV WATER VALVE 1 � LOf AIEA : 79,986 1 WA1 WATER AIEiER BOX ��?p 1 ���� �,tib LAfMEA 1.a4 _EN- CABC TEIEVISIEN LINE X � 6► AVERMCf SLOPE: ' 37.6% -G- GAS UNE • I 1 646 G -SS- S�WITARY SEWER LINE ��6 -SD- $TORM DRAIN UNE LICENSE STAMPS AND SIGNATIJRE S I N ` 644 n �"�Z \�2�=86'10�00�� -T- TELEPHONE IINE C gµ.31\ L=75.20� -W- WATER UNE � �6 s�' �cf' `, a6�R=50.00' h BASIS OF BEAPoNGS �o�°S� b'p� �6� 634 632 630 g2g �~Q�� THE BFARING,S25'S3'OS'W,OF THE .2� ��y1��L � 9� - �626 c, IdONUAIENT UNE OF RlUNBOYY DRNE,AS `L � 1\.. � rt 62` Q�� SHOWN ON THAT CERTAIN AIAP FlLED IN THE � \, �G."� �� ,�� M1 � S�H 623�� 'c� ��aA \ �' � � � 4;� OFFlCE OF THE RECORDER OF SANTA CLARA � . �'��'!�-�A � d�y 20� ��C COUNTY,STATE OF CALIFORNIA,IN BOOK L.C2u q �' q�� e� ��'y'�^ 442 OF MAPS AT PACE 13,WAS USED AS `�'� ���' � 7. � �.� 55�4 YY. 61'y �,y�• 6j _ '`�' � �BASIS Of BEARINGS SHOWN ON THIS �OF CAI�E� 4 s6 � tG�,`^ 3•9 � 8`3`� 39„ro� � IEE: INGRESS AND EGRESS EASEMENT b 6 �'�'\ PUE: PUBLIC UTILITY EASEMENT � ��.� �' t�q�� SSM 6... 12 � SSE: SANITARY SEWER EASEMENT BASIS OF ELFVATION� � + e � �e� 2 �p � PEE: PEDESTRIAN ANO EDUESTRUIN EASEMENT 1E.5 608� THN ELEV=570.00(ASSUMED) 155usn � No. Dexcription Date \� / tG��`��b �������,. �� e �4 p��1,w ! 604 6 1 46 � G '6 i-68 6 � •Sl�., \ ��(��� + � 61 � 602 V��' ,�G�OT UNDERGROUND UTIUTIES. SHOWN PER V 6� G�1 � % 3�5 � G ,y!��� � 1�+ tG 1� S9 c�'Ob MAYFBEEDIFFERENT THAN RAS SHO'NN 5. �+ fP �OS 6� 62.�s 61 02 + ,� FfA� \ � � H' �aP� BEFORE D(CAVATION,CALL UNDERGRWND � �. / 600 SERVICE ALERT(USA)1-800-642-2444. +10� G6� ' T 2 10 � 1 39 \ G � b5 \598 R S . 1 . ( , 6 _ +,ti ��,•• ��,9e. LEGAL DESCPoPTION� / t � S� �+ ,0� r� \ � 596 LOT 7,TRACT N0.5990,AIAP REf:BOOK E A A � , 8 f G 2 5 �'!� 6 i �594 442 PAGE 12 AND 13 DATE: lAN 1,2012 �'` ( T A . E N ) ° \ r, � SCALE: 1•=20° + � 9., � 6 � ry % 8 �5) �,ti 592 ��� DRAW'N: + 'L +�y► - G 9 x � G Z ' �e`•' 9�' �,y�qg.59 1 BOUNDARY DATA COAIPILED FROM RECORD B� � 6 1 0 � �� ` yg.0�1590 INFORMATION 1��8 " �' i a . z3 �.,'' se,.�s � � 6'� � o' S�6 G C Eg�ti9 TBM 91 69 - - SHEET TfILE: � 6 � � � � 610 Z�5 � �9 P�� gg1.75 41. /� �G 90`� x 61 � 6 2 +G A►� Z � �:yM1 +w5 0 EE 6 0 6 �4 ss,� � 626 614 �2 6 4 592IX �N� E .s5I586 / � � TOPOGRAPHIC �67 99 6 Z X 5.71 B R �S 2 � / .SO � 4 9S x g2g 6 616 � 6 0.52 G � � -P {>O x G � � 618 �' / �y .� SURVEY +9�}� 18 S� 6%66%4 7 25 F 6 t3 $.4 �636� (�2 620 � 598 S 84 8 � / � � }B ' 6 0 G GF sy� M1 �,��� 6 96 ' 1 1 7 tP 706 \ ` �9 S� Se' �e.o� 8 S �, � 94 690 6 4 662 656 652 �4g 644 638 ye \ �,Q�9 5 / ��E704 700698696 69 688686 682 678� S'S_'_ 666664 660658_654 650�6 642640 / 634 3 9• 4 624622 608 600 _ 59�5�� ,�qe" ��'�ry SSMH `�O��o•� SHEETNO. // /7�------------ \ `�,ry�\ 1• ��y�/2ry�/ / / / � \�9'6 /+~91�y. � \ �S `�� p'�}� 572M36� �1�� � / �\ ti���G��' 1y16• G 9 • � / to9' � ti� / \ %g� Sc / � \\�---�/ \ b�,� � Qc wec J i � I / � / / I � — --_ � I � � , � � I / / �O O � PRIVATE ACCES '�''//� ASEMENT P.U.E. ti� / S.S.S.E. / / g=1�83.72� --- — — —" � ��a � � --^I,cg3.3t3 �,� EX. SSCO APPROXIMATE " ',p � - LOCAn�►'�• CONTRACTOR � � � �_._ � Y i , _ _---_.,�_ / 'J8�9' / � !%' � PP .8�2���OM�. / •/ �I'' �-' `��6'R,P'R j � � s � � � R,� L. � �\M �p1565g 0 \�/ / a � / �M � ENERG � `-I I �.', � / '�vM � �� I 6�0� ,.� M \ / ��/� 1NJ 5 os� s\ ��M \M __ \\ I /� _._'. 5� S/ °+' \M � \ I /' ' /m/ ,v M.�� � tt ,� � �� M � ) � //es /s� M � � TW f � ''/°' /� }M �M 1 � � ��o � �M e � %� ��� s� _,� �M � j�, — , f � `� rc 5'-: �I1 . . r�r f ; i �.; t � � �� L; t ; \ � � �____. j 1 - _"'—�i1 PP R`P�R ��fi ; ,- _ j� ��. �(�\5669��' � ` � ���RG f� CONS'I'RUCI'ION NOTFS: O (N) 2'SCH.80 PVC WATER SERVICE LINE. O INSTALL 4"SDR-26 SS. LAT. m S=2X MIN. CONNECT TO CLEANWT AT PROPERTY UNE. O3 OIRECT ROOf DONTJSPOUT LEADERS TO APPROVED SPLASH BLOqCS(2'LENGTH MIN.).DIRECT AWAY FROM BUILDING FOR POSITIVE FLOW,&TOWARDS PERVIOUS AREA OF THE SITE-TYP.(SEE DETAIL) O4 APPROXIMATE LOCATION OF JOINT TRENCH TRENCH INCLUDES ALL GAS%ELECTRIC 11NES, COMMUNICATIONS LJNES AND APPURTENANCES, INCLUDING ALL PUBUC UTILJTY, CAN AND TELEGRAPH SYSTEMS. SHALL BE LOCATED AND INSTALLED UNDERGRWND. O 6'SCH.40 PVC O S=1R MIN. � �, ��� � .;, �� ' Q �1� � '� � : �, .� r u,�� �. , ,I.. ' :, ' ' � :� � Iii�Iiii � �� �• • �� �j yL I,iiliil,��Iii�� � � ��iiir i���,����,i��i���.��, Iiir�-„iiirii�i��—/ . O • � . oii%. %////////%/�%/////%%/%/��/��'//�/////�/�r;� � � 1 � � � ii„1:�� .:� � �, •�.� ;�' ;� .Y►' f O :��. . �, :•�• '� � .. 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'cT 5 ,/ Z� � \�J 6R�pV�i p0�6��ak rn o h+M Q � � S , '� � ��� RN���( t �� � W � o'� � , a o � V �� � -� � i , J � ~ W � ; _ _. , ,2% y i tQ I r h � o � ,� v v � � °� � �� � z" � a � � � \ R\M 6�2 6 . � � � � ' ° ,� �� W M � � w B� �° �ji�° °_��Q_u—u� '�j I � P'3:664.5 � � � � °' �_,�� al R\� 61Z o� , I s I F� ��� �N� �I1' ' w /' � o i" Pp 6'► ,�� � T1N 683.Ot R�6�2- �� �687.Ot � I /,j / gyy 683.Ot � ,z�', .-�� ' e ea�o� ,: [..i ��- � ,s''�j� Tµr 687.Qt R�M�y8 L/ �'6�� \,-Q�� /�w /� FG 674.Ot \t� I W N-HOUSE ` s,� �"" ne,s9z.of ,,,i /-" /," gyy 687.Of I � MAFF 67LE�VF1.R��g 2 6�r Q ��6 5 O � \ a r� .,u��-�' �NJ s�� / �f / `\ � Q V GARAGE F� R��' 6�2 8� Q� �NJ .05_ i�1 o � � � ; a'°�----- 4. i" 20' FG 674.Ot , �i� : o TW 692.Ot t % f� j� ; % . " ~� 8'C�.K;',,,_ _ " /� "' ,—�—T?'. �.; j , O / / _- / �l t2 u:�( �: i� ,� ,r,�K � -% i�, � / �,, �-- /'- �- ,, OINSTAtl RETAINING NEW WALL,HEIGHT VARIES. SEE STRUCTURAL PLANS FOR RETAINING WALL DETAILS. O7 18"NADE CONCRETE GUTTER-SEE DETAIL Og INSTALL 4"�SCHEDULE 40 PVC PERFORATED BACKDRAINS(W/HOLES DOWN)- SLOPE 1.SX MIN. 10 (2)36'PERFORATED HDPE PIPE LAID FLAT- TYP. 11 6�SCH. 40 OVERFLOW PVC O S=O.Sx. 72 (N)INFlLTRATION DEVICE(CHRISTY V-24)W/BOTTOM. 13 SEE DETA�ILE RE?ENTiON SYSTEM (10'X30')TO METER STORM WATER DRAINAGE. ( %�"" /�pRP�N �_ �RP��S� �.,W o�T� �\� � � \ , � �. NOTE TOPOGRAPHIC AND BOUNDARY INFORMATION SHOWN HEREON WAS SUPPLIED BY THE OWNER FOR THE USE OF NNR ENGINEERING. � �/ �5 � \ I W i� � ° /� ORp�t� �' \ , �So a, � O � '�GRP� � W ' � �yy 692.Ot � I /� ,-� �y 687.� BW 687.Ot i�l �j � � FG 685.Ot i A W \ j'� �i I � � � \� �'� '� % O � V � � �; ��� / r' ' p,, � f � � O N � -� 9�t � '� , _ a � �`��- -..�.� . a 77� ��r�-�� � �-�, r ^ / _ �. � f r�-���:.���--�� --�, . ;: , � , '� � ..�- � ;: ;� ,/-" // �/' �''/''/ /� . / ��� ` ": { �r''�'/� r�+:a-' , .. �/ -1� a'�, � y �••a. z: %"�- /r � , % ,- • : � W / .%`" '' I � V ;�. � . � d // � ... �.,� ` -✓"�' � '-'�� j � t ., .. ,� _ _. �' , � � c� A ,t , ,: �� r'".j DATE: 9-29-2014 . - ._. � - - - � -��.;a..s. :+,dca� EARTHWORS QUANTTI'Y EARTHWORgNOTE: RETAINING WALLS AND POOL ARE NOT INCLUDED SCALE: 1�� 10� THE CON ACTOR SHALL S ICTLY ADHERE TO THE APPROXIMATE CUT REQUIRED DRAWN BY: NR SOILS ENGINEER'S RECOMMENDATIONS ON STRIPPING WITHIN BUILDING FOOTPRINT 552t CY AND SITE PREPARATION FOR ALL PERTINENT APPROXIMATE CUT REQUIRED SHEET N0: GRADING, PAVING AND TRENCH BACKFlLL ON THIS p�7$�DE BUILDING FOOTPRINT 1638t CY 51�� APPROXIMATE FlLL REQUIRED 1 NOTE: WITHIN BUILDING FOOTPRINT Ot CY C�1 THE QUANT1TlES ARE SHOWN FOR THE PURPOSE OF APPROXIMATE FlLL REOUIRED CUPERTINO AND ARE NOT TO BE USED FOR WTSIDE BUILDING FOOTPRINT 55f CY PAYAAENT TO THE CONTRACTOR. CONTRACTOR SHALL ESTABLJSH HIS OWN QUANTITIES. EXPORT 2245t CY pF S SHEETS %� 690 CONC. GUTTER � SEE DETAIL 6gO 4" PERFORATED SCH 40 PVC PIPE � — S=19'MIN. 670 660 650 r%/�n VV 690 CONC. GUTTER EE DE rA/L 680 6%O RETAINING WALL SEE STRUCTURAL PLANS-TYP. 660 4" PERFORATED SCH 4 PVC PIPE �5=1�MIN. 650 %� 690 680 670 660 650 CARPOR T DR/VEWA Y RETAINING WALL �SEE STRUCTURAL PLANS-TYP. STD 6"CURB-TYP. F/NISH GRADE� RETAINING WALL SEE STRUCTURA PLANS-TYP. EXISTING GRADE� A-A SCALE.• N 1"=10" V 1"=10' __ (N1 HOUSE FF: 674.5 � BASEMENT FS: 664.5 EX/ST/NG GRADE B-B SCALE: H 1"=f0 V 1"=10' C-C SCALE.• H 1"=10 V 1"=10' 680 670 Z � � W 660 650 645 1+00 '/ v`...� %� J"/ �� �•C�/ �'�; ��'���'f�� :�;. . ai.�i's�..:t.: .. _. _.. ,�.�,...�.�:.._., �•� '' ...._. � -.`4 . t•, .. .._ �..r�4�.3�� . . �r �� /� . � - .. � - � .._ _. r..e.«.w.c«..,�.. � �: '`�v i.s'�._!�'.��.`iY.�T�.k- .�.._ ,...... .. �w� u0 680 14' WIDE CONC. RIVEWAY GU TTE 67 SEE DETAIL F.G. EXISTING GRADE RETAINING WALL 660 4�� SEE STRUCTURAL PERFORATED PLANS-TYP. SCH 40 PVC PIPE � ��n S=?%MIN. � W D-D SCALE: H 1'"=10' V 1"=f0" i SOLID PIPEJ SLOPED TO DRA/N-' PROVIDE TlE DOWN SEE SD END RESTRA/NT DETAIL EXlST/NG GRADE FiN/SH GRADE-� \ _. �SEE SOIL REPORT FOR STRUCTURAL SECTION _ __ GARAGE DW PROFILE 1'�'� SCALE: H 1"=10' V 1"=10' PRO�IDE AGRI DRA/N RAT�UARD PRO�IDE TlE DOWN SEE SD RG08"'OR S/MILAR AT OUTLET. END RESTRAINT DETAIL PROIiIDE "10' LONG T" �END OF PIPE z � 6" TO 12" l�ROCK � 12'" THICK KEWA Y / FlL TER FABRIC EXTENDED ,:.,� .._: .:; , \ 5'DOWN HILL FOR �'•;°^'�_�°cQ°�� ,�%�,' SLOPE PROTECTION. ;t��;�' .`��\j,`�;,j;� � /�`'V��.,�,,' �.�, �2" --, //�/�\��\�,���/�� � 6"m DISCHARGE PIPE M/N. ��'��.` � .�/ ������A�� 2' �\j�\\/ �0' i�/\��/0��� � THE INTENT OF AN ENERGY DISSIPATOR lS TO DISPERSE THE COLLECTED DRAINAGE AS �"SHEEr FLOW" ONTO THE EXISTING GROUND SURFACE, WHICH SIMULATES THE DRAINAGE CONDITIONS THAT WOULD OTNERWISE NOTE.• ENOS OF SURFACE DRAINAGE DISCHARGE NATURALLY OCCUR lF NO DE�ELOPMENT WERE PRESENTS ON THE SITE. PIPE SHOULD NOT BE CAPPED. PERIODIC MA/NTENANCE IS REQUIRED TO KEEP OISCHARGE FREE FROM BLOCKAGE. ENERGY DISSIPATOR DETAII� N.T.S. .E'" REVISIONS I BY QROFESSlO,yq yQE,P\�N.R,qF oGy/i W= � � � No. 56027 � �` Exp,12 31 14 � `�4T C I ���p F OF CA��F� V � � � s WA � � w O1 � � � U .-. ^ V � � � � z � � � � W � y � � � � W a � � A V '� � o � O W �i A a A � � � e� U a � O N a a � M� a V w � � V /•� i-i DATE: 9-29-2014 SCALE: AS SHONM DRAWN BY: NR sHEEr Na C-2 OF S SHEETS FINISH GRADE 3/4 " DRAIN ROCK WATER PROOFING MARAFI 140 FILTER FABRIC RETAINING WALL FOR il BASEMENT _ VAPOR BARRIER PER SOILS REPORT DISCHARGE �INE W/ BASEMENT FLOOR BACKFLOW PREVENTER- 18"X18"X24" DEEP GRATE �q, : CHRISTY BOX W/ BOTTOM yr;,, Z PER�SOILS REPORTMATERIAL { � .�E•, � MIN. 4" SCHEDULE 40 OR SDR 35 (OR 2�-3" DRAIN ROC „ ��?" N EQUIVALENT) PVC PERFORATED PIPE ��'�f"` �,>, �,1, (PERFORATION FACING DOWN) RESTING ON A THIN LAYER OF CRUSHED ROCK, MIN. DEPTH PER SOILS REPORT, DRAIN AT 1� MIN. BASEMENT RETAINII�TG�VALL DRAINAGE INFILTRATION DEVICE DETAIL N.T.S. ACCESS COVER TO CATCH BASIN N.T.S. CLEANOUT SYSTEM (CHRISTY V-24) OR EQUAL GRATE FINISH GRADE GRATE COVER (N) CATCH BASIN (CHRISTY V-24) Z '�-' Z OR EQUAL WITHOUT J � BOTTOM � 24" EARTH CAP (MIN.) � � O � � OUTFLOW o PIPE = FINISH GRADE N Q 3/4" DRAIN ROCK BEDDING = N � z (N) 2' CONCRETE LINED � DITCH (5" DEEP) m? , `� � L�___._ _----- RETAINING WALL DRILL 2" HOLE AT BOTTOM FOR WATER TO DRAIN CONC.GIJ'ITER TYPICAL SECTION 2"-3" DRAIN ROCK N.T.S. CATCH BASIN DETAIL N.T.S. PROVIDE CLEANOUTS AS SHOWN FOR FLUSHING OF SYSTEM COTG ii 1 _ _ ,., ,,_,_... r.., : �,.r_:.�., . . . _.. . � "... ,. �.,y � ;�/�-�� Y L �y�:�=��:�`�.�i. � i�G�o�� "!1� � �..��,�..�_-. - . � � ��; . �,s�:»��.- � � �: /� i''R•;sa�� i�°• .�...� `r=�i�*,,, ��'��r/� .> . . Yr _. . ...,. .6� _ a��sastx�ktaics �. ' .�.;�t i � � � � G � , r �i���:��c�'t:: .. ., . -•�..,,.:,_. { � �J' , f 1 � r '. \\�. � 36" PERFORATED HDPE PIPE � 36" PERFORATED HDPE PIPE � (N) CATCH BASIN (CHRISTY V-24) OR EQUAL WITHOUT BOTTOM SEE PLAN PLAN V1E�V (2) BANKED �36" PERFORATED HDPE PIPE LAID FLAT- TYP. E-- 8" TO 36" REDUCER F— ;-i r�i. 6" PVC EMERGENCY OVERFLOW �0.5� MIN. PIPE IN REVISIONS BY 3 0 J Z (N) CATCH BASI ��QRONS�Nq�� (CHRISTY V-24 ti�=PO��' �'�o<%y OR EQUAL � p No. 56027 � Exp.�2 31 14 '3 J?4l C � ��\p f OF CA��FO � E--INFLOW COTG V rl � � � s 3/4" DRAIN ROCK w � � �° ^� WRAPPED IN FILTER FABRIC � � � � U ^ ^ � rM� o � � v � ti (N) CATCH BASIN � d � � �(CHRISTY V-24) w �. � �" OR EQUAL � � � �—INFLOW � � -- --- --- - SEE PLAN -- ---- I �3/4" DRAIN ROCK � � WRAPPED IN FILTER FABRIC a � MIN. 6-8° IN THICKNESS 0 , .,,;, ,. : � �..�-���� �;���.��.;����� ��;���� ��;��� ~� � o � � W �i RETEN'I'ION/DISSIPATOR STRUC:TURE A a A N. _ . A w 12"-24" EARTH CAP w � � e� U a � O N a a (2) BANKED 36" PERFORATED HDPE PIPE � LAID FLAT— TYP. z � v � 4�.: ,..,��y.. �'��%�i"� �-� ��� , ,� .� � ,�� . . �:�t"�•�-� 10' MIN. SECTION A`A BACKFILL PER GEOTECHNICAL N.T.S. ENGINEER'S RECOMMENDATIONS � � V W � A v� U O �a �� U DATE: 9-29-2014 SCALE: AS SHONM DRAWN BY: NR SNEET N0: C-3 OF 1 SHEETS I ` / I / / / I � � ` I _ — - � / I , — ;� _ � � �- , / � , — ,00 , � PRIVATE ACCESS '�''//� / / S SSS EENT P.U.E. V� � , � / / R=183.72 — �- � � �'1,=63•� / � ' ,.-,.- . `= � ' � ` � ------ � i � � ; _ / ; : i ' --r'--- ,�— ���-�.—.-- / ! � / ` -__ / �- - r 78•i � 4'2�.Op"�I• i �1--�',,� �� � "'_f,..i�i,% / ��. �� �'� ___._ / /,..: S• � - � /� � _�� i '� � � ____� -- / / __ -- �--,_ — ;:-. , /� � ' � / ___�-----..—___---______�,\`` /''i -",.:-, / -- ���J��//"' / / /�- / �� � . -%" ,i �/ i /' � — — '-���I ''/. ; � ; ; i _�" � ; _-::t ��� _.___ ---'—`�---'��� -, 1 � /,. 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' � ��rir../IS�.St'v:'r� 4 �� ' � � _... _.�.>,,�.,.,�. � � ?L ti�N.�:4��:s. ^ .....�....��.,..w..�. .� .... .rw�.nwr Y ...... ... � 7 � I � ti x � — i' - / /, � �,/ _— _ ___- __----_ //- %/'//,, �� J ,j-- � � /'. ,--. _ ;-- . �� � :.,/ i- /. � � ,-� i� � %� _,-= � .,-�'�� �-�'� , , \ I ' RENSIONS I BY :� � � � � QROFESSlO,yq QE.��N.RqF�fy W4,2O\ �Ol c•y-� � � No.56027 p �` Exp,12 31 14 '� �4l C I �,��p f 0� CA��E� / � I � w � � � � s �, � o W A � op n o� � .1 ' W U e7�, � J � W � � � � � ° � � .� w � � a � I M � � w � a w I z 0 � I � F � z w � a � � A U � w � o W o � � A w w � � � � � a � I o � a � I I O � � I O � � I � � � WU DATE: 9-29-2014 i:�x�rawoRg Qu�irrrrrY F�ARTH VVORg NOTE: RETAINING WAILS AND POOL ARE NOT INCIUDED SCALE: 1'= 10' CONTRACTO ALL SiRICTLY ADHERE TO THE APPROXIMATE WT REQUIRED DRAWN BY: NR SUILS ENGINEER'S RECOMMENDAl10NS ON STRIPPING WITHIN BUILDING FOOTPRINT 552t CY AND SITE PREPARATION FOR ALL PERTINENT APPROXIMATE CUT REQUIRED SHEET N0: GRADING,PAVING AND TRENCH BAqCFILL ON THIS pUTSIDE BUILDING FOOTPRINT 1638t CY ��� APPROXIMATE FlLL REWIRED C� NOTE: WITHIN BUIIDING FOOTPRINT Ot CY THE QUANT1TlES ARE SHOWN FOR THE PURPOSE OF APPROXIMATE F1LL REWIRED CUPERTINO AND ARE NOT TO BE USED FOR OUTSIOE BUILDING FOOTPRINT 55t CY PAYMENT TO THE CONTRACTOR.CONTRACTOR SHALL ESTABLJSH HIS ONT!WANTITIES. EXPORT 2245t CY OF S SHEETS � � / � / , � j � �_�-�-'�"` f ��� , - ' �_ _ ___ , _ .�._��-- , �.�.; __� � � / -- � - — � . � /// ///�� � / - ��j/.�� /� / __ __ ,; �--��, � �---- __ — /�//�// i.�/ /� :f� � / ---- ---_'-------"- ��- �i / �! , �, / // /// ///// � '' __._---_-- _ ��,�%/�r; /��/� �/��� '� � ------ -- ----�"��� � ; . ��, , � i � //� / //� // / fj r` _'�� �._ / // %- ;'/// // // / // ._ / � � � f •/ / �, . //// / /� ///J // // / / / ' � - ' , BE�� F� / �,,,.�- __�_._ .. ` '� ' N 1' //�F ` . , // /` //' / � � // ... , , , ; ,,._---�---____----- -- / // / /// // , / / 3 __ ' f ' % ,�h°� // / / � /� � / / � � ;- � // // � // ; / , � / // / / / / , , �; f; � � J � 1 �� 1 1 Kf � ; � —'-�so -- ,� � ;,, � e�� _________--- . /// / // ;,;;;%'! //� ;,%/ ; , // // / ;- %'� � // /� / ' /� //� //� ,, �/// ; � ____-_._ / /// // / �;�//// ///�,//i'/ , � / � /� '� ,/ // /, / / - �' %' -��F. _-- Z��- � �/� � i/��/��/� �„� / // // r _ � �� 6E$ -- � IMPER �/�-, /�j/,!- /// , ; / ,,-- � �.-- .__-______ �, VIOUS , �/ / . � , �,�/,;�;��' � /� AREA=9 877 S.F �/ � / � '�� '� %�� � =���. . . //� � ' _�------ //�" ,�' /' . � , �//� //�/ // � : _.,r--.,,'-!- / _ ��/� / ��� � �/���/� �� /� �/ / ��� � �// �/�j� // �/.�j� �// �/ �/ / // //�j / // / . / �� ///./// /// // / /// / /// � / ��C� / / � �°° / / / / / / �.-- ,---',. �� /%�� /CONC.DW�/ / �� /�//�� � �//�f �� �/ �� / /,�;- / � /� /� / // � /�� � //� � �� � //� � �� / ,,,� ,- .i, ii ,ir,� ii i ,�i i ,i i ii ,.� � . k- '/^' ,' � � ��j/� / /�� / �.i ,, �/ � // / �/ .-- ./� �- ./ -- -� __ ___ __ - � ���/� / / =' ;� �' / � : ;,, � __ "5 /� / // �� � _ /� /� / �.- / �2"TREc fi'OAlio o '' / �,---- ' ///��/ / -'� / i� �% ; '�'° ���1 �w°.%' // �,,,jT')"� / ' � /'" 'l / �=' /������� i j O: j� /% �4"OO �..-�—__�.._...----``-.____._'r'.7�P'_"'."/�� /'� //�-�� %�' �j•�/�/ ..i # / ,, , / '�.,.�� /" � . ' � y �1 �i i September 29,2014 APN:366-37-007 21730 Rainbow Drive Cuocrtino.Santa Clara Countv.CA. Post-Drvelonmeut Totai On-Site Impen�ious Area=9,877 sq_ft.=0.22G acre C�FV=0.95 Gr�m=0.30 Change in tt►e Run-oii Coetlicient=U.95-03U=U.65 I=0.56in/hr. C=0.65 A=0.226acrc Q=CIA=0.63��0.56x0,226=0.08 cfs Deterniine storage/detenuon volume:V=Q x 2x tc Constniction rwwfivolume V=0.08 x 2 x 60�eca►nd/minutc.w a 60!�econd/mioute.v=576 cf Retention system sizing calculations Pipe diameter=3G"perforated Pipe lenglh=30' Pipe area=3.lSx(3)2/4=7.1 sq.ft. Storage volume of pipe=7.1x30=213 cf. Construct(2}36^perforated pipN 426 cf Trench ca��cit�� Width=8' I.ength=30' Depth=2.S' Trench volume=2.Sx8x30=600 cf Trench only has 30"/0 or less storage capacitp(30%�•oid ratio) 600x0.3=180 Storage volume r�equired=576 cf Stora¢e vronosed=426+180=606 cf � i .`' i � % ��-e�J/�"�� .! �=.�'��'li+v��`��w.���'a�r�i�!..���� - � �u1�';.'_� . /�—�5/� .�.,.....�:.,�,w.;,.�. ..:� � ; y. ,�T r—� . � L_ .. • • " ..a�srv�..M�� ' .�.�s+ , �� z � ,."•, �'`� , . . . . __ .__ .,__... u........... ... ......_.;��'....1.� s � � I I � I I I REVISIONS BY QgOFESSIO,yq ���=P\�N.RqF olyc� C No.56027 A {` E%P,1 2 31 1 4 '� �4l C I ���p f 0� CA��FO � � � w � � � Z w � z z � � W W A w � a � a a � � � s w °` � � � � � � W � � � � � v � z� a � M � � � � A � � � N � z � � C/� � � 0 � � a � UW A � � � U � � a � U DATE: 9-29-2014 SCALE: 1'= 10' DRAWN BY: NR SHEET N0: C-5 OF S SHEETS / � '� � �� � _ ��'' � / ��/ � I ' � �� � / / / / �'' ^� � � �`� ��� I / SS / I' � �/'� �� �\ � PRIVATE ACCE / / / S S S EENT P.U.E. � �� S � G � \\ i I o � e�► / �— — — _" �� / \� �-� \\ REVISIONS I BY ` -- ♦ � \� � / � ��a —�.�► .., QROfESSlppq� CONSTRUCT TEMPORARY COVERED _ - - - / ��� G� N �� �\�' �,,./�' � � yQ�'P�M N RAF`p�y�y � � AREA 8'x10' OR LARGER F�R STORING __ � �� �����NP�'��P\� i�� \ °� ' �g\ I W = � � \ � No.56027 A � CEMENT, PAINTS, FLAMABLES, OILS, / � �� P O�S�� ��� �� �� �� I � EXP.12 3, ,4 � � -� FERTILIZERS PES�ICIDE, OR ANY OTHER _`�� � � �.— �P. �� �� � a - �� �41f � a���p // M ATERi A�S.--TI-��' Vdit� P6�€N�Y i♦ � \ __.__-_---- _ II �F cn��� � `BECOME A POLLUTANT. �� �,�� a w� �I ���� �� �� � � � � �������� ��_ —�� ¢ � � y� i _._... f I �' ��' �`��.► '� �� � �a�n G ! � I -.t f_%-`ll / � � � " / i ���� � r� ��� � �� � / � / � �, W I � �� � 1 �; �� � /,/ � � � �; � ��� �. � ..�...�...� � � ' '' /�/� ` �/ � \ t S O � ._ — — _- --- - , �. 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QI � ' SUPPLY WATfR TO WASH " N01E� , Ktlf£LS l�NEC£SSARY US£SANpBAGS STRAW BALfS OR OTHER APPROVFD METM005 TO CHANNEUZ£RUNOFf TO BASIN AS R£OUIRED. VOOD$TAKE ��O ��O �� FLOW MAX 4; GOOD HOUSEKEEPING PRACTICES � !4 SPaciNG GOOD HOUSEKEEPING PRACTICES SHALL BE OBSERVED AT ALL TIMES DURINC ��W � �, THE COURSE OF CONSTRUCTION.SUPERINiENDENCE OF CONSTRUCiION SHALL � i' BE DIUGENTLY PERFORMED BY A PERSON OR PERSONS AUTHORIZED TO DO SO � O Q� i �� AT ALL TIMES DURING WORKING HWRS.THE STORING OF GOODS AND/OR Q '�` ��OO A R� l7✓ � y �p� QtS z'-3�(50-7Snml � 0�0 i2�M/N. ENTRENCHMENT MAiERIALS ON THE SIDEWALK AND/OR 1HE STREET NALL NOT BE ALLOWED 0 p0 p �p COnRS£.4GGR£GaIE �� OOO " UNLESS A SPECIAL PERMIT IS 15SUED BY THE ENGINEERING DIV1510N. THE Q A/IN.6"(15p mm)T/�ICK O�Q (3.6M) �� DETAIL ADJACENT PUBLIC RIGHT-OF-WAY SHALL BE KEPT CLEAR OF ALL JOB � O O O �{�o o OOp � V IN FLATAREA RELATED DIRT AND DEBRIS AT THE END OF THE DAY. FAILURE TO MAINTAIN �Op O 000 U O n THE PUBIIC RIGHT-OF-WAY ACCORDING TO THIS CONDITI�J A1AY RESULT IN STRAW WATTLES THE TOWN PERFORMING THE REWIRED►AAINTENANCE AT THE DEVELOPER'S NTS EXPENSE. D�V£R57AV R�DCE SECURE FABRIC VITH STAPLES, R�CK BAGS,OR SIMILAR WE[GHi DEVICE SEQUENCE OF CONSTRUCTION 50� IS M M/N. ROPE PLAN 1. INSTALL STABILIZED CONSTRUCTION ENTRANCE. 2. CONSTRUCT AND A�AITAIN TEMPORARY CHAIN LINK FENCE AT THE SITE PERIMETER. DnER5�0,v RiDG£R£UwREO WH£Rf GRADE EXC£EDS 2x 3. CONSTRUCT FIBER ROLLS ON 1HE SITE PERIMETER `pR p__ R�REnTER � 4. PROVIDE WATER ON SITE FOR DUST CONTROL DURING All GRAOING OPERATIONS. ROADwAY � 5. CLEAR AND GRUB THE SITE. 6. BEGIN GRADtNG THE SITE. -ricrE?FaaRic 7. INSTALL CHECK DAMS,SEDIMENT TRAPS AND SECTION A-A BASINS,TEMPORARY SWALES. STABILIZED CONSTRUCTION EIVTRANCE 8. COMPLETE GRADING AND INSTALL PER�AANENT SEEDING AND PLANTING. NTS TEMPORARY COVER ON STOCK PILE 9 RE�IOVE ALL TEMPORARY EROSION AND SEDIMENT CONTROL DEVICES STABILIZED CONSTRUCTION ENTRANCE NOTES: NTS (ONLY IF SITE IS STABILIZED). — N I. THE ENTRANCE SHALL BE MA/NrA/Nf0/N A CONOlI/ON IHAT W7LL PREV£Ni TRACKINC I OR FLOWINC OF SfD/MENT ONTO PUBUC R/GHT-OF-WAYS. iHIS MAY REQU/RE 70P ORE557NG,REPA/R AND/A4 CLEANOUT OF ANY A/EASURfS USfD TO TRAP SED/MENT 2.ttMEN NEC£SSARY,NHEELS SNALL BE CLEANfD PR/OR TO fN1RANC£_ONTO PUBL/C a R/CNi-OF-WAY. ;_ O 3.WH£N WASHING/5 REW/RfD,lT SHALL BE DOhlE ON AN AREA STABIUZfD M7H�-�'�"'""'����--�''+-�-i--=`--�-��'--�� �•--=---.'� '-�. . : CRUSHED STONE 1HAT DRAINS lNiO AN APPROVED S£OIMfNT rRAP OR Sf0/AIfNI ^I, BASlN 1�1 ' F �—BURLAP BPGS FlLLED WfTFI GRADED ROCK (NO fINES).NO SMPLLER THPIr 1/2"W$IZE; SURRIXIN�DRAIN INLEf ALl FOUR SIDES NOTES: t.THICKNESS OF FlLlEO R4C5 WHEN WD SH4LL NOT EXCEED 4'. 2 ENSURE THERE ME NO GAPS 8Ef'NEEN THE BACS. 3.REIAOVE ACCUAIUUTED SILT,AND OEBRIS BEFORE R EJ(CEEDS 2�THICK ON TFE SIDES �.INSPECT WIET PROTECTION pAILY WRING El(IENpED RPINFN.L PERIODS PNO BE�ORE M!D PFTER FAQi RAIN EVENT. BURLAP SACK DRAIN INLET(D.I.) SEDIMENT FILTER DETAIL NTS <2)VOODEN STAKES OR REBAR PER HAY BALES(TYPICAL> ROUGH WOODEN FRAME� O �l2 MIL PLASTIC LINING '` V �B,N��N�u�RE z � O � >_STACKED HAY BALES<27 � _ O �NATIVE MATERIAL ►l w DATE: 9-29-2014 -STACKED NAY BA�ES SCALE: 1"= 10� � DRAWN BY: NR SHEET N0: -REUSABLE ROUGH WOODEN�RAME C-6 TEMPORARY CONCRETE WASHOUT FACILITY(ABOVE GRADE) NTS OF 6 SHEETS • • or a i iona . n orma ion . ee i e _ _