Loading...
HomeMy WebLinkAboutParcel Map 34711 Parcel 2 WQMP Kingdom Hall f Project Specific RECEIVED Water Quality Management Plan AFR 10 t CITY OF TEMECULA PUBLIC WORKS DEPT For: Kingdom Hall of Jehovah's Witnesses (Temecula Valley) 31640 Calle Girasol Temecula, CA 92591 DEVELOPMENT /DESIGN REVIEW NO. LD10.053GR; PA 09 - 0061 Prepared for: Kingdom Hall of Jehovah's Witnesses C/O Joseph van Haaster, Minister 31640 Calle Girasol Temecula, CA 92591 (951) 662-9405 Prepared by: John Hacker, Owner, Civil Engineer JHA Engineering 41921 Beacon Hill, Suite A Palm Desert, CA 92211 760.345.1352 aocetted WQMP Preparation/Revision Date: 12/6/08, 7/17/09, 8/25/09, 10/14/2009, 12/12/2010, 3/12/11 r rs WATER QUALITY MANAGEMENT PLAN (WQMP) • '� , E , ' INITIAL APPLICABILITY CHECKLIST if ,,t � ./ Applicant Name: AacePf1 vA.i %AAAsra4. ti_ g Application PA Dq - oolol L $ 1989 Plannin A lication Number: Project Name: ICI rl Cob 001 i4,41. ( OP .ie (1ovg0 0) n74953615 Does the proposed project incorporate any of the following categories? (All questions must be answered) S No Modifications to Existing Developments — This category includes projects that create, add, or replace 5,000 sq. ft. or more of impervious surface on an already developed site. This category includes: (a) Expansion of a building footprint, or addition or replacement of a structure; (b) Increase in the gross floor area, or major exterior construction or remodeling; 1 (c) Replacement of impervious surfaces that are not part of routine maintenance activities; (d) Land disturbing activities related to a structure or impervious surface. V. Note: If modifications create less than 50% of the impervious surface of a previously existing development, and the existing development was not originally subject to WQMP requirements, a WQMP shall be required only to the addition, and not to the entire development. 2 Residential Development - This category includes subdivisions of single - family homes, multi- family homes, V condominiums, and apartments consisting of 10 or more dwelling units. 3 Non - Residential Development - This category includes projects where the land area for development is greater ✓ than 100,000 sq. ft. • - Automotive Maintenance and Repair Shops - This category includes facilities engaged in general maintenance 4 and mechanical repairs; body and upholstery repair; painting; transmission and exhaust repair; tire servicing; glass ✓ repair. Restaurants - This category includes all eating and drinking establishments where the land area for development 5a is greater than 5,000 sq. ft. ✓ Restaurants where the land area for development is less than 5,000 sq. ft. are only required to follow the site ✓ 56 design and source control requirements of the WQMP. Hillside Development — This category includes any developments that create 5,000 sq. ft. of impervious surface, 6 are located in an area with known erosive soil conditions, and where the project will require grading natural slopes ✓ of 25% (4:1) or steeper. Environmentally Sensitive Areas (ESAs) — This category includes all development located within or directly adjacent to or discharging directly to an ESA which either creates 2,500 sq. ft. of impervious surface or increases the area of imperviousness by 10% or more of its naturally occurring condition. Note: "Directly adjacent" means within 200 feet of the ESA. "Discharging directly to" means outflow from a drainage conveyance system that is composed entirely of flows from the subject development or modification, and not commingled with flows from adjacent lands. Parking Lots — This category includes projects where the land area for development creates 5,000 sq. ft. or more i 8 for the temporary parking or storage of motor vehicles. This category includes parking areas associated with any of the developments outlined above. Routine maintenance, including removal and replacement, is exempt. Streets, Roads, Highways & Freeways — This category includes projects that create 5,000 sq. ft. or more of 9 impervious surface for transportation of motor vehicles. Routine maintenance, including removal and f replacement, is exempt. 10 Retail Gasoline Outlets — This category applies if either of the following criteria is met: (a) 5 sq. ft. or more, or (b) a projected `Average Daily Traffic' count of 100 or more vehicles per day. • If you answered "YES" to any of the questions above, a project - specific Water Quality Management Plan must be prepared and submitted. Page 1 of 1 Rev. 01 (07/2008) t'' WATER QUALITY MANAGEMENT PLAN n CONCEPTUAL ACCEPTANCE CHECKLIST Conceptual Water Quality Management Plan (WQMP) A conceptual WQMP must be accepted by the City Engineer prior to issuance of Final Conditions of Approval. A conceptually accepted WQMP shall be submitted to the Public Works Department as part of the grading submittal package. Applicants shall confer with the City's engineering staff to ensure adherence with the latest version of the Project - Specific WQMP Template. At a minimum, the following sections of the WQMP template shall be satisfied: WQMP Secfhon )°„,; ` .5E d Ttl St ir ie of ecIO J % ' Y r eP- is � 6 rt. a, Hrg.x aa, xne v - „q,x�fi <�.,..3s+ I '1 %, �∎;� tot ;�., 481 I Project Description III Pollutants of Concern IV Hydrologic Conditions of Concern (Surface Hydrology) V.1 Site Design BMPs V.3 Treatment Control BMPs VI Operation and Maintenance Responsibility for Treatment Controls Appendix B WQMP Site Plan (24 "X36 "), conceptual landscape plan (24 "X36 ") • Appendix C Supporting Detail related to Hydrologic Conditions of Concern (Surface Hydrology report) Appendix E Soil and Percolation Reports that specifically address soil infiltration properties Appendix F Treatment Control BMP Sizing Calculations and Design Details Final Water Quality Management Plan (WQMP) A finalized WQMP will include finalizing the conceptually accepted portions of the WQMP and acceptance by the City Engineer prior to issuance of any grading permits. A final WQMP shall include the remaining sections of the Project - Specific WQMP Template outlined below: WQMP Sechon m Section t� ��� Title of *,a te y ,ti f � II Site Characterization V.2 Source Control BMP's V.4 Equivalent Treatment Control Alternatives V.5 Regionally -based Treatment Control BMP's VII Funding Appendix A Final Conditions of Approval Appendix B Vicinity Map, Receiving Waters Map Appendix D Education Material Appendix G O &M Agreement • Appendix H Phase I Environmental Site Assessment Page 1 of 4 Revised 03/20/2009 i WATER QUALITY MANAGEMENT PLAN CONCEPTUAL ACCEPTANCE CHECKLIST \ 1484 j Item Addressed? CONCEPTUAL WQMP REQUIREMENTS Yes No Not Applicable General Three -Ring Binder ✓ Tabbed Appendices ✓ Title Page Table of Contents ✓ Section I.-Project Description (in narrative form) ' Project location ✓ Project size (to the nearest 1 /10 acre) ✓ Standard Industrial Classification (SIC) Code ✓ Description and location of all buildings, proposed ' activities, locations of these activities, materials and products to be used and stored for each activity and at each ✓ building, delivery areas, and what kinds of wastes will be generated from each building and the entire project • Project watershed and sub- watershed ✓ Formation of a Home Owner's or Property Owner's Association ✓ Additional permits/approvals required for the project including: • State Department of Fish and Game, 1601 Streambed Alteration Agreement; • State Water Resources Control Board, General Construction Permit ✓ • Regional Board, 401 Water Quality Certification; • US Army Corps of Engineers, 404 permit; • US Fish and Wildlife, Endangered Species Act section 7 biological opinion; • Municipal, grading and building permits. Section III. Pollutants of Concern (in narrative form) Completed table of potential and expected pollutants, sources, and 303(d) listings ✓ Pollutants of Concern ✓ Legacy pollutants as a result of past uses ✓ Section IV. Hydrologic Conditions of Concern (in narrative form) ° . Condition A, B, or C. ✓ If none, evaluation of impacts to downstream erosion or stream habitat Completed Storm Event surface hydrology table V Section V. Best Management practices VI. Site Design BMPs . Table 1. Site Design BMPs is complete V Narrative describing all site design BMPs proposed for the project ✓ • Explanation for each BMP NOT used and why they cannot be implemented r / Site Design BMPs shown on the WQMP Site Plan (Appendix B) Page 2 of 4 Revised 03/20/2009 WATER QUALITY MANAGEMENT PLAN ' 4 `x CONCEPTUAL ACCEPTANCE CHECKLIST 1989 "' Item Addressed? CONCEPTUAL WQMP REQUIREMENTS Yes No Not Applicable V3. Treatment Control BMPs Table 3. Treatment Control BMPs is complete ✓ Narrative describing all treatment control BMPs proposed for the project Narrative describing how each individual treatment control BMP proposed for the project will be implemented and maintained, including locations, sizing criteria, inspection and maintenance frequency, inspection criteria, long -term O &M, and the ✓ responsible entity or party Treatment Control BMPs shown on the WQMP Site Plan (Appendix B) Section'VL Operation and Maintenance (O&M) Responsibility for Treatment Control BMPs.. Completed cost and O &M table ✓ BMPs requiring O &M are identified BMP start-up dates ✓ Schedule of the frequency of O &M for each BMP • ✓ Parties responsible for O &M Description of water quality monitoring, if required Appendix B Site Plan depicting the following project features: Location and identification of all structural BMPs Landscape areas V Hardscape areas Paved areas V. Number and type of structures and intended uses. (i.e.: buildings, tenant spaces, dwelling units, community facilities such as pools, recreations facilities, tot lots, etc.) Infrastructure (i.e.: streets, storm drains) ✓ Location of existing and proposed public and private storm drainage facilities including catch basins and other inlet/outlet structures. (Existing and proposed drainage facilities should be clearly differentiated.) Any adjacent receiving waters that the project directly discharges into. 5 / Discharge points where onsite or tributary offsite flows exit the site. 1 / Proposed drainage areas boundaries, including tributary offsite areas, for each BMP and locations where flows exit the site. (Each drainage area should be clearly • denoted.) Page 3 of 4 Revised 03/20/2009 O SP WATER QUALITY MANAGEMENT PLAN • s ; _ CONCEPTUAL ACCEPTANCE CHECKLIST s r- , ;.,,e; Item Addressed? CONCEPTUAL WQMP REQUIREMENTS Yes No Not Applicable Post - project topography. V Appendix C Surface Hydrology report 'Appendix E ' > "_ Property /project soils report and percolation test results ✓ Appendix F Treatment Control BMP sizing calculations and design details Manufacturers specs ✓ (End of Conceptual Acceptance Checklist) • Checklist for Conceptual Acceptance.doc • Page 4 of 4 Revised 03/20/2009 (61p.My\ f , A if eN WATER QUALITY MANAGEMENT PLAN � X / FINAL ACCEPTANCE CHECKLIST The purpose of this checklist is to provide a format for uniform, comprehensive, and well- documented reviews of project - specific Water Quality Management Plans (WQMPs) submitted by project owners. The completed checklist should accompany the WQMP and submitted to the City of Temecula. SUMMARY OF WQMP REQUIREMENTS (PLEASE LIST THE FOLLOWING INFORMATION) Section I. Watershed and Sub - Watershed: Santa Margarita River and jn rr1-O C, ac-i-c u a is C fee_Ic Section II. Land -Use Category (from Initial Checklist): ( � " n- (CS i rl al a Section III. Pollutants (expected and potential): ?(I fxnl1 /rf; I < . f) l 7 ✓t\ q eon COYL vn r n n j ✓1 P S 2 Section IV. Exemption Category (A, B, C, or Not Exempt): Section V. Treatment BMP Category(ies): (2_ -2Y1 c - b c.5 ; yl s . ; U - S W ri \e 5 �l0 COrA S Oa U-eric Section VI. Party(ies) responsible for BMP installation and maintenance: U 05 e e h '[ v Ler Section VII. Funding source(s) for BMP maintenance: r �o co_ \ CO nol ec CE4if/vts Se-hole vvi ¥ NOTES: (a) The WQMP will NOT be accepted unless all of the items requested throughout this checklist are completed. (b) The Riverside County Water Quality Management Plan guideline and template can be downloaded from the City's website. ,. Page 1 of 5 Revised 03/20/2009 � 4 �pF 7`Bdrg�P . ` °' WATER QUALITY MANAGEMENT PLAN FINAL ACCEPTANCE CHECKLIST Not WQMP REQUIREMENT Yes No Applicable Title Page Name of project with Tract, Parcel, or other I.D. number Owner/Developer name, address & telephone number Consulting/Engineering firm, address & phone number Preparer's Registered Professional Engineers' Stamp and Signature Date WQMP was prepared ✓ Certification Statements Signed Engineer's certification statement ✓ —j Signed and notarized Owner's certification statement Table of Contents Completed and includes all figures, appendices (A -H), and design worksheets Section I. Project Description (in narrative form) Project location Project size (to the nearest 1 /10 acre) ✓ Standard Industrial Classification (SIC) Code Description and location of all buildings, proposed activities, locations of these activities, materials and products to he used and stored for each activity and at each building, delivery areas, and what kinds of wastes will be generated from each building and the entire project Project watershed and sub - watershed ✓ Formation of a Home Owner's Association or Property Owner's Association ✓ Additional permits /approvals required for the project including: • State Department of Fish and Game, 1601 Streambed Alteration Agreement; • State Water Resources Control Board, General Construction Permit • Regional Board, 401 Water Quality Certification; • US Army Corps of Engineers, 404 permit; ✓ • US Fish and Wildlife, Endangered Species Act section 7 biological opinion;. • Municipal, grading and building permits. Section II. Site Characterization (in narrative form) Land use designation or zoning Current and proposed property use t/ Soils report (Appendix E) Phase I Site Assessment or summary of assessment or remediation (Appendix H) .� Identification of Receiving waters (including 303(d) listed waters, Designated beneficial uses, and any RARE beneficial use waters) and their existing impairments • Page 2 of 5 Revised 03/20/2009 os x • WATER QUALITY MANAGEMENT PLAN ®" FINAL ACCEPTANCE CHECKLIST \ 1989 Yes No Not WQMP REQUIREMENT Applicable Section III. Pollutants of Concern (in narrative form) Completed table of potential and expected pollutants, sources, and 303(d) listings Pollutants of Concern . t Legacy pollutants as a result of past uses 1,7 Section IV. Hydrologic Conditions of Concern (in narrative form) Conditions A, B, or C. \✓ If none, evaluation of impacts to downstream erosion or stream habitat Completed Storm Event surface hydrology table Section V. Best Management Practices VI. Site Design BMPs * ,¢ a,+ ° F in_' Table I. Site Design BMPs is complete • Narrative describing all site design BMPs proposed for the project V Explanation for each BMP NOT and why they cannot be implemented Site Design BMPs shown on t15e WQMP Site(Appendix B) V2. Source Control BMPs ;" u k:`4i9 s; -, Table 2. Source Control BMPs is complete Narrative describing the source control BMPs proposed for the project Narrative describing the source control BMPs that were NOT applicable and why they cannot be implemented Inspection and maintenance frequency, inspection criteria, and the responsible entity or party Structural source controls shown on the WQMP Site P (Appendix B) V3. Treatment Control BMPs "e Table 3. Treatment Control BMPs is complete Narrative describing all treatment control BMPs proposed for the project Narrative describing how each individual treatment control BMP proposed for the project will be implemented and maintained, including locations, sizing criteria, inspection and maintenance frequency, inspection criteria, long -term O &M, and the responsible entity or party —� Treatment Control BMPs shown on the WQMP Site Plan (Appendix B) V4. Equivalent Treatment Control Alternatives a, - ,F0A • Page 3 of 5 Revised 03/20/2009 WATER QUALITY MANAGEMENT PLAN �" FINAL ACCEPTANCE CHECKLIST III v Not WQMP REQUIREMENT Yes No Applicable Narrative describing equivalent treatment control alternatives t / Calculations for Equivalent Treatment Control Alternatives (Appendix F) V5. Regionally -Based Treatment Control BMPs Es. i. 1 te t Narrative describing regionally -based treatment control BMPs v Calculations for Regionally -Based Treatment Control BMPs (Appendix F) ✓ Section VI. Operation and Maintenance (O&M) Responsibility for Treatment Control BMPs Completed cost and O &M table Si' BMPs requiring O &M are identified V BMP start -up dates t Schedule of the frequency of O &M for each BMP Parties responsible for O &M Vz Description of water quality monitoring, if required )- Section VII. Funding Signed funding certification statement ✓ Appendix A (Section I) - Signed copy of the final Conditions of Approval ✓ Appendix B (Sections I and V) Vicinity Map identifying the project site Receiving Waters Map ✓' a aua�H E ss =. A Site Plan depicting the following project features: �1 `��� a Location and identification of all structural BMPs. Landscape areas. ,/ Hardscape areas. ✓ Paved areas. V Number and type of structures and intended uses. (ie: buildings, tenant spaces, dwelling units, community facilities such as pools, recreations facilities, tot lots, ✓ etc.). Infrastructure (ie: streets, storm drains). ✓ III Page 4 of 5 Revised 03/20/2009 U WATER QUALITY MANAGEMENT PLAN • �$ : FINAL ACCEPTANCE CHECKLIST l Yes No Not WQMP REQUIREMENT Applicable Location of existing and proposed public and private storm drainage facilities including catch basins and other inlet/outlet structures. (Existing and proposed ✓ drainage facilities should be clearly differentiated.) Any adjacent receiving waters that the project directly or indirectly discharges into. Discharge points where onsite or tributary offsite flows exit the site. Proposed drainage areas boundaries, including tributary offsite areas, for each location where flows exit the site. (Each tributary area should be clearly denoted.) ✓ Post - project topography. Landscape Plans showing the structural treatment BMPs. • Appendix C (Section IV) Surface Hydrology report Appendix D (Section V) Educational materials. Appendix E (Sections II and V) Property /project soils report and percolation test results Appendix F (Section V) Treatment Control BMP sizing calculations and design details Manufacturers specs Appendix G (Sections I and VI) CC &Rs, Covenant and Agreements, or other mechanisms used to ensure the ongoing operation, maintenance, funding, and transfer of the WQMP requirements Appendix H (Section II) Summary of environmental site assessment or remediation, if applicable. (End of Checklist) • Page5of5 Revised 03/20/2009 Water Quality Management Plan (WQMP) Kingdom Hall of Jehovah's Witnesses ENGINEER'S CERTIFICATION "I certify under penalty of law that this document and all attachments and appendices were prepared under my direction or supervision in accordance with a system designed to ensure that qualified personnel properly gather and evaluate the information submitted." /L /21/ / 0 Signature Date • ,itoFESS /p ��'� co ���jjjiii c9 NO.14614 rn cc EXPIRES 3 -31 -11 am OF CAL\ I Water Quality Management Plan (WQMP) Kingdom Hall of Jehovah's Witnesses • OWNER'S CERTIFICATION This project - specific Water Quality Management Plan (WQMP) has been prepared for: Kingdom Hall of Jehovah's Witnesses by JHA Engineering, for the project known as Kingdom Hall of Jehovah's Witnesses at 31640 Calle Girosal, Temecula, California, 92591. This WQMP is intended to comply with the requirements of City of Temecula, Riverside County for 957 - 120 - 019 - 2, which includes the requirement for the preparation and implementation of a project- specific WQMP. The undersigned, while owning the property /project described in the preceding paragraph, shall be responsible for the implementation of this WQMP and will ensure that this WQMP is amended as appropriate to reflect up -to -date conditions on the site. This WQMP will be reviewed with the facility operator, facility supervisors, employees, tenants, maintenance and service contractors, or any other party (or parties) having responsibility for implementing portions of this WQMP. At least one copy of this WQMP will be maintained at the project site or project office in perpetuity. The undersigned is authorized to certify and to approve implementation of this WQMP. The undersigned is aware that implementation of this WQMP is enforceable under Water Quality • Ordinance (Municipal Code Section 8.28.500). If the undersigned transfers its interest in the subject property /project, its successor in interest the undersigned shall notify the successor in interest of its responsibility to implement this WQMP. "I, the undersigned, certify under penalty of law that the provisions of this WQMP have been reviewed and accepted and that the WQMP will be transferred to future successors in interest." Owner's Sint t Date S oszptd VA) /t +u &q 6 Tea. ( ° JC'idi+(iA7io,N 'Pet Owner's Printed Name Owner's Title/Position Kingdom Hall of Jehovah's Witnesses C/O Joseph van Haaster, Minister 31640 Calle Girasol Temecula, CA 92591 (951)662 -9402 WQMP Preparation/Revision Date: 12/6/08, 7/17/09, 8/25/09, 10/14/2009, 12/12/2010 • CALIFORNIA ALL - PURPOSE CERTIFICATE OF ACKNOWLEDGMENT • • State of California ,c County of tNSi D� • 0 9 00 I before me, TO t l A C OV-O EL Pont cAA f.5t--i _ t I (here insert name and title of the officer) personally appeared ✓OS Iv /' } AS1-EY1„ who proved to me on the basis of satisfactory evidence to be the personj$ hose nameks'jisZare subscribed to, the within instrument and acknowleded to me that he /sletbey executed the same in hiserit,jaterr authorized capacity(and that by his /Vthefr signatures the instrument the person(sor the entity upon behalf of which the personj$ ted, executed the instrument. I certify under PENALTY OF PERJURY under the laws of the State of California that the foregoing paragraph is true and correct. TOMAS E. CORONEL WITNESS my hand and official seal. ] Commission O 1924114 z y � - i'9■ Notary Public - California z / _ Riverside County A - / - "- M Comm. Expires Mar 1, 2015 Signature of Notary Public (Seal) ADDITIONAL OPTIONAL INFORMATION • INSTRUCTIONS FOR COMPLETING THIS FORM Any acknowledgment completed in California must contain verbiage exactly as DESCRIPTION OF THE ATTACHED DOCUMENT appears above in the notary section or a separate acknowledgment form must be � 0-A5 properly completed and attached that document. The only exception is if Gerard I 1 %9 document is to p bb recorded out be recorded outsidid of of California. orrcia. !n n such such instann ces, , any any alternative acknowledgment verbiage as may be printed on such o document so long as the (Title or description of attached document) verbiage does not require the notary to do something that is illegal for a notary in &A Ce California (i.e. certifying the authorized capacity of the signer). Please check the (Tif la or description of attached document continu d) document carefully for proper notarial Wording and attach this form if required • State and County information must be the State and County where the document Number of Pages Document Date / I signer(s) personally appeared before the notary public for acknowledgment. �• ' _ ' 1 1 ▪ Date of notarization must be date that the signer(s) etednally appeared which be must also be the same e acknowledgment icm date the acknowledgment s completed. (Additional information) • The notary public must print his or her name as it appears within his or her • commission followed by a comma and then your title (notary public). • Print the name(s) of document signer(s) who personally appear at the time of notarization. CAPACITY CLAIMED BY THE SIGNER • Indicate the correct singular or plural forms by crossing off incorrect forms (i.e. Individua he /she /they. is tare) or circling the correct forms. Failure to correctly indicate this information may lead to rejection of document recording. ❑ Corporate Officer • The notary seal impression must be clear and photographically reproducible. Impression must not cover text or lines. If seal impression smudges, re -seal if a (Title) sufficient area permits, otherwise complete a different acknowledgment form. ❑ Partner(s) • Signature of the notary public must match the signature on file with the office of the county clerk. • ❑ Attorney -in -Fact o Additional information is not required but could help to ensure this ❑ Trustee(s) acknowledgment is not misused or attached to a different document. ❑ Other Indicate title or type of attached document, number of pages and date. Indicate the capacity claimed by the signer. If the claimed capacity is a • corporate officer, indicate the title (i.e. CEO, CFO, Secretary). • Securely attach this document to the signed document CAPA v12.10.07 800 -873 -9865 www.NotaryClasses.com Water Quality Management Plan (WQMP) Kingdom Hall of Jehovah's Witnesses • Contents Section Page PROJECT DESCRIPTION A -2 II SITE CHARACTERIZATION A -5 III POLLUTANTS OF CONCERN A -9 IV HYDROLOGIC CONDFTIONS OF CONCERN A -11 V BEST MANAGEMENT PRACTICES A -12 V.1 Site Design BMPs A -12 V.2 Source Control BMPs A -18 V.3 Treatment Control BMPs A -18 V.4 Equivalent Treatment Control Alternatives A -22 V.5 Regionally -Based Treatment Control BMPs A -22 VI OPERATION AND MAINTENANCE RESPONSIBILITY FOR TREATMENT CONTROL BMPS A -23 • VII FUNDING A -24 APPENDICES A. CONDITIONS OF APPROVAL B. VICINITY MAP, WQMP SITE PLAN, AND RECEIVING WATERS MAP C. SUPPORTING DETAIL RELATED TO HYDRAULIC CONDITIONS OF CONCERN (IF APPLICABLE) D. EDUCATIONAL MATERIALS E. SOILS REPORT F. TREATMENT CONTROL BMP SIZING CALCULATIONS AND DESIGN DETAILS G. AGREEMENTS - CC &RS, COVENANT AND AGREEMENTS AND /OR OTHER MECHANISMS FOR ENSURING ONGOING OPERATION, MAINTENANCE, FUNDING AND TRANSFER OF REQUIREMENTS FOR THIS PROJECT - SPECIFIC WQMP H. PHASE 1 ENVIRONMENTAL SITE ASSESSMENT - SUMMARY OF SHE REMEDIATION CONDUCTED AND USE RESTRICTIONS • A -i WQMP Preparation /Revision Date: 12/6/08, 7/17/09, 8/25/09, 10/14/2009, 12/12/2010 Water Quality Management Plan (WQMP) Kingdom Hall of Jehovah's Witnesses • I. Project Description Instructions: The project description shall be completely and accurately described in narrative form. In the field provided on page A -3, describe and with supporting figures (maps or exhibits), where facilities will be located, what activities will be conducted and where, what kinds of materials will be used and/or stored, how and where materials will be delivered, and the types of wastes that will be generated. The following information shall be described and/or addressed in the "Project Description" section of the project - specific WQMP: • Project owner and WQMP preparer; • Project location; • Project size; • Standard Industrial Classification (SIC), if applicable; • Location of facilities; • Activities and location of activities; • Materials Storage and Delivery Areas; • • Wastes generated by project activities. Project Owner: Kingdom Hall of Jehovah's Witnesses C/O Joseph van Haaster, Minister 31640 Calle Girasol Temecula, CA 92591 951.662 - 9405 WQMP Preparer: John Hacker, Owner, Civil Engineer JHA Engineering 41921 Beacon Hill, Suite A Palm Desert, CA 92211 760.345.1352 • A -2 WQMP Preparation/Revision Date: 12/6/08, 7/17/09, 8/25/09, 10/14/2009, 12/12/2010 Water Quality Management Plan (WQMP) Kingdom Hall of Jehovah's Witnesses • Project Site Address: 31640 Calle Girasol Temecula, CA 92591 Planning Area/ Temecula Community Name/ N/A Development Name: N/A APN Number(s): 957 - 120 -019 -2 Thomas Bros. Map: Page 959, Section D -1, 1994 Project Watershed: Santa Margarita River (HA 902) Sub - watershed: Santa Gertrudis Creek (HSA 902.42) Project Site Size: 2.32 Acres (Net), 2 Acres (Disturbed) Standard Industrial Classification (SIC) Code: 8661 Formation of Home Owners' Association (HOA) or Property Owners Association (POA): Y N X The operation and maintenance for the BMPs will be by the local congregation of Jehovah's Witnesses. Joseph van Haaster, a minister, will be responsible for maintenance of BMPs. • Additional Permits /Approvals required for the Project AGENCY Permit required State Department of Fish and Game, 1601 Streambed Y X N Alteration Agreement State Water Resources Control Board, Clean Water Act Y X N (CWA) section 401 Water Quality Certification US Army Corps of Engineers, CWA section 404 permit Y ❑ N X US Fish and Wildlife, Endangered Species Act section 7 Y X N biological opinion Other (please list in the space below as required) City of Temecula Grading Permit Y X N City of Temecula Building Permit Y X N • SWRBC Construction Permit (NPDES) Y X A -3 WQMP Preparation/Revision Date: 12/6/08, 7/17/09, 8/25/09, 10/14/2009, 12/12/2010 Water Quality Management Plan (WQMP) Kingdom Hall of Jehovah's Witnesses • Appendix A of this project - specific WQMP includes a complete copy of the final Conditions of Approval. Appendix B of this project - specific WQMP shall include: 1. A Vicinity Map identifying the project site and surrounding planning areas in sufficient detail to allow the project site to be plotted on Co- Permittee base mapping; and 2. A Site Plan for the project. The Site Plan included as part of Appendix B depicts the following project features: • Location and identification of all structural BMPs, including Treatment Control BMPs. • Landscaped areas. • Paved areas and intended uses (i.e., parking, outdoor work area, outdoor material storage area, sidewalks, patios, tennis courts, etc.). • Number and type of structures and intended uses (i.e., buildings, tenant spaces, dwelling units, community facilities such as pools, recreation facilities, tot lots, etc.). • Infrastructure (i.e., streets, storm drains, etc.) that will revert to public agency ownership and operation. • Location of existing and proposed public and private storm drainage facilities (i.e., storm drains, channels, basins, etc.), including catch basins and other inlets /outlet structures. Existing and proposed drainage facilities should be clearly differentiated. • ■ Location(s) of Receiving Waters to which the project directly or indirectly discharges. • Location of points where onsite (or tributary offsite) flows exit the property /project site. • Proposed drainage areas boundaries, including tributary offsite areas, for each location where flows exits the property /project site. Each tributary area should be clearly denoted. • Pre- and post - project topography. Appendix G of this project - specific WQMP shall include copies of mechanisms used to ensure the ongoing operation, maintenance, funding, transfer and implementation of the project- specific WQMP requirements. • A -4 WQMP Preparation/Revision Date: 12/6/08, 7/17/09, 8/25/09, 10/14/2009, 12/12/2010 Water Quality Management Plan (WQMP) Kingdom Hall of Jehovah's Witnesses • Attachment to Section I. PROJECT DESCRIPTION: The 2 acres of net disturbance will include a new building for religious services (Church) of 8,263 sq.ft, with a parking lot area of 49,312 sq. ft. Out of that 49,312 sq. ft., 15,066 sq. ft. will be permeable pavers: the remainder will be approximately 5500 square feet of landscaping. This site has a natural creek that will not be disturbed for this construction project. A 1,300 gallon retention basin on the east side of the project will be constructed to hold 2900 cu ft of stormwater runoff (Refer to Appendix F). LOCATION OF NEW BUILDINGS (relative to project boundries): the new building will be on the South/West side of the of the property. The back of the building will face Calle Girasol. PROPOSED ACTIVITIES AT THESE BUILDINGS: This facility will be used to hold religious • services. No cooking or industrial services will be performed at this facility. SPECIFIC LOCATIONS OF THESE ACTIVITIES: The religious services will be held inside the building. Monday —Friday light use 7 AM -5PM. 6 PM -9:30 PM Moderate use. Saturday & Sunday All day moderate. LOCATION OF MATERIAL STORAGE AREAS: Within the building in the closets. LOCATION OF LOADING AND UNLOADING AREAS: At the front entrance. This project does not propose any loading/unloading docks. ACTIVITY - SPECIFIC WASTE TO BE GENERATED: General office type trash, paper and miscellaneous cleaning rags to be placed in the trash containers. S A -5 WQMP Preparation/Revision Date: 12/6/08, 7/17/09, 8/25/09, 10/14/2009, 12/12/2010 � ' California Regional Water Quality Control Board ' l \ - San Diego Region � +; v Over 50 Years Serving San Diego, Orange, and Riverside Counties • Matthew Rodriquez Recipient of the 2004 Environmental Award for Outstanding Achievement from USEPA Edmund G. Brown Jr. Secretary for Governor Environmental Protection 9174 Sky Park Court, Suite 100, San Diego, California 92123 -4353 (858) 467-2952 • Fax (858)571 -6972 http: // www.watutioanls.m.gov/sandiego September 1, 2011 In reply refer to: Joseph van Haaster 765313: cclemente Temecula Valley Congregation of Jehovah's Witnesses 41221 Via Anita Temecula, CA 92521 Dear Mr. Haaster: Subject: Action on Request for Clean Water Act Section 401 Water Quality Certification for the Kingdom Hall of Jehovah's, Witnesses Project Water Quality Certification No, 11C - 028 Enclosed find Clean Water Act Section 401 Water Quality Certification for discharge to Waters of the U.S. for the Kingdom Hall of Jehovah's Witnesses Project. A description of the project and project location can be found in the project information • sheet, location map, and site maps which are included as Attachments 1 through 6. • Any petition for reconsideration of this Certification must be filed with the State Water Resources Control Board within 30 days of certification action (23 CCR § 3867). If no petition is received, it will be assumed that you have accepted and will comply with all the conditions of this Certification. Failure to comply with all conditions of this Certification may subject you to enforcement actions by the California Regional Water. Quality Control Board, San Diego Region (San Diego Water Board), including administrative enforcement orders requiring you to cease and desist from violations, or to clean up waste and abate existing or threatened conditions of pollution or nuisance; administrative civil liability in amounts of up to $10,000 per day per violation; referral to the State Attorney General for injunctive relief; and, referral to the District Attorney for criminal prosecution. • California Environmental Protection Agency 1-- •1- +t3rv-.fv -.to 0 Recycled Paper Joseph van Haaster Page 2 of 2 September 1, 2011 • Kingdom Hall, Cert #11C-028 In the subject line of any response, please include the requested "In reply refer to:" information located in the heading of this letter. For questions pertaining to the subject matter, please contact Chiara Clemente at (858) 467 -2359 or cclemente @waterboards.ca.gov. Respectfully, s t;&,O t DAVID W. GIBSON Executive Officer Enclosures: Clean Water Act Section 401 Water Quality Certification No. 11C -028 for Kingdom Hall of Jehovah's Witnesses Project, with 6 attachments cc: Refer to Attachment 2 of Certification 11C -028 for Distribution List. Tech Staff Info & Use • File No. 11C-028 WDID 9000002254 Reg. Measure ID 378561 Place ID 765313 Party ID 526525 Person ID 526526 • California Regional Water Quality Control Board t ... San Diego Region •Jlatthew Rodriquez Over 50 Years Serving San Diego, Orange, and Riverside Counties Edmund G. Brown Jr. Secretary for Recipient of the 2004 Environmental Award for Outstanding Achievement from USEPA Governor Environmental Protection 9174 Sky Park Court, Suite 100, San Diego, California 92123-4340 (858) 467 -2952 • Fax (858)571 -6972 http: // www.waterboards.ca.gov /sandiego Action on Request for Clean Water Act Section 401 Water Quality Certification and Waste Discharge Requirements for Discharge of Dredged and /or Fill Materials PROJECT: Kingdom Hall of Jehovah's Witnesses Project, Certification Number 11C -028 awns APPLICANT: Joseph van Haaster Reg. Meas. ID: 378561 Place ID: 765313 Temecula Valley Congregation of Party ID: 526525 Jehovah's Witnesses WDID: 9 000002254 41221 Via Anita Temecula, CA 92521 ACTION: E Order for Low Impact Certification ❑ Order for Denial of Certification • • ❑ Order for Technically- conditioned ❑ Waiver of Waste Discharge Certification Requirements E Enrollment in SWRCB GWDR ❑ Enrollment in Isolated Waters Order Order No. 2003 -017 DWQ No. 2004 -004 DWQ • PROJECT DESCRIPTION: • The project is the construction of a 8,284- square foot single -story building, with 49,023- square feet of parking, and 37,778- square feet of landscaping. The project site is located east of Calle Girasol, north of Calle Chapos, and south of Aussie Road within the City of Temecula in Riverside County. The project will widen a previously installed dip crossing on Aussie Road where it crosses an ephemeral streambed that is a tributary to Murrieta Creek which eventually flows into the Santa Margarita River. The concrete crossing will impact 1,817- square feet (0.0417 -acre) of streambed. Rip Rap sized at one -half ton will be placed before the crossing and impact 274 - square feet (0.0063 -acre) of streambed. Total project impacts from the crossing will be 0.063 -acre (56- linear feet). The project will be mitigated by the removal of non - native species and the restoration of 0.26 -acre (480 - linear feet) along an ephemeral stream located on the project site. • California Environmental Protection Agency The energy challenge facing California is real. Every Californian needs to take immediate action to reduce energy consumption. For a list ofsimple ways you can reduce demand and cut your energy costs, see our Web -site at http: //www.swrcb.co.gov. Recycled Paper Kingdom Hall of Jehovah's 11C-028 Witnesses Project • TABLE OF CONTENTS I. STANDARD CONDITIONS: 3 II. ADDITIONAL CONDITIONS: GENERAL 3 III. ADDITIONAL CONDITIONS: CONSTRUCTION BEST MANAGEMENT PRACTICES 5 IV. ADDITIONAL CONDITIONS: POST - CONSTRUCTION BEST MANAGEMENT PRACTICES 6 V. ADDITIONAL CONDITIONS: COMPENSATORY MITIGATION 8 VI. MONITORING REQUIREMENTS• 10 VII. NOTIFICATION REQUIREMENTS: 11 VIII. REPORTING REQUIREMENTS 13 IX. CEQA FINDINGS• 16 X. PUBLIC NOTIFICATION OF PROJECT APPLICATION• 17 XI. SAN DIEGO WATER BOARD CONTACT PERSON: 17 • XII. WATER QUALITY CERTIFICATION: 17 • 2 Kingdom Hall of Jehovah's 11C -028 Witnesses Project • I. STANDARD CONDITIONS: The following three standard conditions apply to all Certification actions, except as noted under Condition 3 for denials. A. This Certification action is subject to modification or revocation upon administrative or judicial review, including review and amendment pursuant to section 13330 of the California Water Code and section 3867 of Title 23 of the California Code of Regulations (23 CCR). B. This Certification action is not intended and must not be construed to apply to any discharge from any activity involving a hydroelectric facility requiring a Federal Energy Regulatory Commission (FERC) license or an amendment to a FERC license unless the pertinent Certification application was filed pursuant to 23 CCR subsection 3855(b) and the application specifically identified that a FERC license or amendment to a FERC license for a hydroelectric facility was being sought. C. The validity of any non - denial Certification action (Actions 1 and 2) must be conditioned upon total payment of the full fee required under 23 CCR section 3833, unless otherwise stated in writing by the certifying agency. • II. ADDITIONAL CONDITIONS: GENERAL A. Water Quality Certification No. 11 C -028 (Certification) is only valid if the project begins no later than 5 (five) years from the date of issuance. If the project has not begun within 5 years from the date of issuance, then this Certification expires. B. The Kingdom Hall of Jehovah's Witnesses must comply with the requirements of State Water Resources Control Board Water Quality Order No. 2003 - 0017 -DWQ, Statewide General Waste Discharge Requirements for Discharges of Dredged or Fill Material That Have Received State Water Quality Certification. These General Waste Discharge Requirements are accessible at: http: / /www.waterboards.ca.gov /water issues /programs /cwa401 /docs /gene ralorders /qo wdr401 regulated proiects.pdf. C. The Kingdom Hall of Jehovah's Witnesses must, at all times, fully comply with the engineering plans, specifications and technical reports submitted to the California Regional Water Quality Control Board, San Diego Region (San Diego Water Board), to support this Certification and all subsequent submittals required as part of this Certification and as described in Attachment 1. The conditions within this Certification must supersede 3 Kingdom Hall of Jehovah's 11C -028 • Witnesses Project conflicting provisions within such plans submitted prior to the Certification • action. Any modifications thereto, would require notification to the San Diego Water Board and reevaluation for individual Waste Discharge Requirements and /or Certification amendment. D. During construction, the Kingdom Hall of Jehovah's Witnesses must maintain a copy of this Certification at the Project site so as to be available at all times to site personnel and agencies. E. The Kingdom Hall of Jehovah's Witnesses must permit the San Diego Water Board or its authorized representative at all times, upon presentation of credentials: 1. Entry onto Project premises, including all areas on which wetland fill or wetland mitigation is located or in which records are kept. 2. Access to copy any records required to be kept under the terms and conditions of this Certification. 3. Inspection of any treatment equipment, monitoring equipment, or monitoring method required by this Certification. 4. Sampling of any discharge or surface water covered by this Order. • F. In the event of any violation or threatened violation of the conditions of this Certification, the violation or threatened violation must be subject to any remedies, penalties, process or sanctions as provided for under State law. For purposes of section 401(d) of the Clean Water Act, the applicability of any State law authorizing remedies, penalties, process or sanctions for the violation or threatened violation constitutes a limitation necessary to assure compliance with the water quality standards and other pertinent requirements incorporated into this Certification. G. In response to a suspected violation of any condition of this Certification, the San Diego Water Board may pursuant to Water Code sections 13267 and 13383, require the holder of any permit or license subject to this Certification to investigate, monitor and report information on the violation. The only restriction is that the burden, including costs, of preparing the reports must bear a reasonable relationship to the need for and the benefits to be obtained from the reports. H. In response to any violation of the conditions of this Certification, the San Diego Water Board may modify the conditions of this Certification as appropriate to ensure compliance. • 4 Kingdom Hall of Jehovah's 11C-028 Witnesses Project • III. ADDITIONAL CONDITIONS: CONSTRUCTION BEST MANAGEMENT PRACTICES A. Prior to the start of the project, and annually thereafter, the Kingdom Hall of Jehovah's Witnesses must educate all personnel on the requirements in this Certification, pollution prevention measures, spill response, and Best Management Practices (BMPs) implementation and maintenance. B. The Kingdom Hall of Jehovah's Witnesses must, at all times, maintain appropriate types and sufficient quantities of materials on site to contain any spill or inadvertent release of materials that may cause a condition of pollution or nuisance if the materials reach waters of the United States and /or State. C. The Kingdom Hall of Jehovah's Witnesses must enroll in and comply with the requirements of State Water Resources Control Board Water Quality Order No. 2009 - 0009 -DWQ, NPDES No..CAS000002, General Permit for Storm Water Discharges Associated with Construction and Land Disturbance Activities. D. The treatment, storage, and disposal of wastewater during the life of the • project must be done in accordance with waste discharge requirements established by the San Diego Water Board pursuant to CWC § 13260. • E. Discharges of concentrated flow during construction or after completion must not cause downstream erosion or damage to properties or stream habitat. F. Water containing mud, silt, or other pollutants from equipment washing or other activities, must not be discharged to waters of the United States and /or the State or placed in locations that may be subjected to storm flows. Pollutants discharged to areas within a stream diversion area must be removed at the end of each work day or sooner if rain is predicted. G. All surface waters, including ponded waters, must be diverted away from areas undergoing grading, construction, excavation, vegetation removal, and /or any other activity which may result in a discharge to the receiving water. Any temporary dam or other artificial obstruction constructed must only be built from materials such as clean gravel which will cause little or no siltation. Normal flows must be restored to the affected stream immediately upon completion of work at that location. H. All areas that will be left in a rough graded state must be stabilized no later than one week after completion of grading. The Kingdom Hall of Jehovah's Witnesses and subsequent owners, are responsible for • implementing and maintaining BMPs to prevent erosion of the rough 5 Kingdom Hall of Jehovah's 11 C -028 Witnesses Project graded areas to prevent flow from this area from causing adverse effects • to beneficial uses. After completion of grading, all areas must be revegetated with native species appropriate for the area. The revegetation palette must not contain any plants listed on the California Invasive Plant Council Invasive Plant Inventory, which can be found online at: http://www.cal-ipc.orq/ip/inventory/weedlist.php. I. Substances hazardous to aquatic life including, but not limited to, petroleum products, raw cement/concrete, asphalt, and coating materials, must be prevented from contaminating the soil and /or entering waters of the United States and /or State. BMPs must be implemented to prevent such discharges during each project activity involving hazardous materials. J. Removal of vegetation must occur by hand, mechanically, or using EPA approved herbicides deployed using applicable BMPs to prevent impacts to beneficial uses of waters of the State. Use of aquatic pesticides must be done in accordance with State Water Resources Control Board Water Quality Order No. 2004 - 0009 -DWQ, and any subsequent reissuance as applicable. Removal of vegetation must occur outside of the avian nesting season (March 15- August 31). K. All rough graded desilting basins must be designed, constructed and • maintained, until all development on the project site is completed, according to the most recent California Stormwater Quality Association guidance for sediment basins. IV. ADDITIONAL CONDITIONS: POST - CONSTRUCTION BEST MANAGEMENT PRACTICES A. The Kingdom Hall of Jehovah's Witnesses is prohibited from allowing post - construction discharges to cause onsite or offsite downstream erosion, damage to properties or damage to stream habitats in the ephemeral streambed that is a tributary to Murrieta Creek that flows into the Santa Margarita River. B. All storm drain inlet structures within the project boundaries must be stamped and /or stenciled (or equivalent) with appropriate language prohibiting non -storm water discharges. C. All post- construction BMPs, including those described in the Project Specific Water Quality Management Plan (WQMP) for the Kingdom Hall of Jehovah's Witnesses titled 3164 Calle Girasol WQMP, prepared by JHA Engineering on March 12, 2011, must be implemented and sized to • 6 • Kingdom Hall of Jehovah's 11 C -028 Witnesses Project • comply with the following numeric sizing criteria and treat 100 percent of the impervious surfaces associated with the project: 1. Volume Volume -based BMPs must be designed to mitigate (infiltrate, filter, or treat) either: a. The volume of runoff produced from a 24 -hour 85 percentile storm event, as determined from the local historical rainfall record (0.6 inch approximate average for the San Diego County area); or b. The volume of runoff, as determined from the local historical rainfall record, that achieves approximately the same reduction in pollutant loads and flows as achieved by mitigation of the 85 percentile 24- hour runoff event; or 2. Flow Flow -based BMPs must be designed to mitigate (infiltrate, filter, or treat) either: a. The maximum flow rate of runoff produced from a rainfall intensity of 0.2 inch of rainfall per hour; or • b. The maximum flow rate of runoff produced by the 85 percentile hourly rainfall intensity, as determined from the local historical rainfall record, multiplied by a factor of two; or c. The maximum flow rate of runoff, as determined from the same reduction in pollutant loads and flows as achieved by mitigation of the 85 percentile hourly rainfall intensity multiplied by a factor of two. D. Post - construction BMPs must be installed and functional prior to occupancy and /or planned use of development areas. E. For all post- construction BMPs, including but not limited to, the retention basin, the bio - swale, and the bio- retention basin, as described in 31640 Calle Girasol WQMP, prepared by JHA Engineering on March 12, 2011; and storm water discharge points must: 1. Be regularly inspected and maintained for the life of the project per manufactures' specifications and industry standards; 2. No less than one time per year assess the performance of the systems on protection of the receiving Waters and identify any necessary • corrective measures; 7 Kingdom Hall of Jehovah's 11C-028 Witnesses Project 3. Have all preventive and corrective maintenance performed; • 4. Be inspected no less than one time per year, immediately prior to the commencement of the rainy season (Octoberl) and after every storm event exceeding 0.5 inches of precipitation; and 5. Maintain a log documenting all BMP inspections and maintenance activities. V. ADDITIONAL CONDITIONS: COMPENSATORY MITIGATION A. Mitigation for permanent discharges to 0.063 -acre (56- linear feet) of non - wetland waters of the United States must be achieved by the restoration of 0.021 -acre of non - wetland waters of the United States and 0.24 -acre of uplands, along 480 - linear feet of an ephemeral streambed located on site as described in the 401 application submittals and Mitigation Monitoring and Reporting Plan Vegetative Restoration Assessors Parcel No. 957- 120 -019 (Laurence N. Dean, July 2011). Mitigation must include: 1. Non - native plants will be removed from the mitigation site and replaced with native plants. The planting palette includes a native seed mix of Leymus condensatus (Giant wild rye), lsocoma menziesii (Goldenbush), Baccharis emoryi (Emory's baccharis), Artemisia • dracunculus (Tarragon) and container plantings of Sambucus mexicana (Blue elderberrry) and Artemisia californica (Coast sagebrush). B. The construction of proposed mitigation must be concurrent with project grading and completed no later than 9 months following the initial discharge of dredge or fill material into on site waters. Delays in implementing mitigation must be compensated for by an increased mitigation implementation of 10 percent of the cumulative compensatory mitigation for each month of delay. C. Permanent fill (rip -rap) void space must be backfilled with native soil and planted with native species. D. The Kingdom Hall of Jehovah's Witnesses must restore all areas of temporary impacts and all other areas of temporary disturbance which could result in a discharge or a threatened discharge to waters of the United States /State. Restoration must include grading of disturbed areas to pre - project contours and revegetation with native species. The Kingdom Hall of Jehovah's Witnesses must implement all necessary BMPs to control erosion and runoff from areas associated with this project. • 8 Kingdom Hall of Jehovah's 11C -028 Witnesses Project • E. The Kingdom Hall of Jehovah's Witnesses must salvage leaf litter, coarse woody debris, and upper soil horizons from impacted jurisdictional water sites that are relatively free of invasive exotic species for use in on site mitigation areas. F. The Kingdom Hall of Jehovah's Witnesses must also salvage large cuttings from appropriate tree species if they exist at the impact site and use them as pole plantings at the mitigation site. G. The mitigation site must be designed, constructed, and maintained to meet the following conditions: 1. The channel(s) through the mitigation site are characterized by equilibrium conditions, with no evidence of severe aggradation or degradation; 2. As viewed along cross - sections, the channels and buffers have a variety of slopes, or elevations, that are characterized by different moisture gradients. Each sub -slope contains physical patch types or features that contribute to irregularity in height, edges, or surface and to complex topography overall; and 3. The mitigation site has a well - developed plant community • characterized by a high degree of horizontal and vertical interspersion among plant zones and layers. H. Throughout the mitigation monitoring program, mitigation areas must be maintained free of perennial exotic plant species including, but not limited to, pampas grass, giant reed, tamarisk, sweet fennel, tree tobacco, castor bean, and pepper tree. Annual exotic plant species must not occupy more than 5 percent of the on site or off site mitigation areas. I. The San Diego Water Board acceptance of the final mitigation plan must not be construed as approval of the mitigation site or plan for use by other current or future projects that are planning to use additional acreage at the site for mitigation. J. Any maintenance activities that do not contribute to the success of the mitigation site and enhancement of beneficial uses and ecological functions and services are prohibited. Maintenance activities are limited to the removal of trash and debris, removal of exotic plant species, replacement of dead native plant species and remedial measures deemed necessary for the success of the restoration program. K. If at any time during the implementation and establishment of the mitigation area(s), and prior to verification of meeting success criteria, a • 9 Kingdom Hall of Jehovah's 11G028 Witnesses Project catastrophic natural event (e.g., fire; flood) occurs and impacts the • mitigation area, the Kingdom Hall of Jehovah's Witnesses is responsible for repair and replanting of the damaged area(s). L. For the purpose of determining mitigation credit for the removal of exotic /invasive plant species, only the actual area occupied by exotic /invasive plant species must be quantified to comply with mitigation requirements. M. For purposes of this Certification, establishment is defined as the creation of vegetated or unvegetated waters of the United States /State where the resource has never previously existed (e.g. conversion of nonnative grassland to a freshwater marsh). Restoration is divided into two activities, re- establishment and rehabilitation. Re- establishment is defined as the return of natural /historic functions to a site where vegetated or unvegetated waters of the United States /State previously existed (e.g., removal of fill material to restore a drainage). Rehabilitation is defined as the improvement of the general suite of functions of degraded vegetated or unvegetated waters of the United States /State (e.g., removal of a heavy infestation or monoculture of exotic plant species from jurisdictional areas and replacing with native species). Enhancement is defined as the improvement to one or two functions of existing vegetated or unvegetated waters of the United States /State (e.g., removal of small patches of exotic plant species from an area containing predominantly natural plant • species). Preservation is defined as the acquisition and legal protection from future impacts in perpetuity of existing vegetated or unvegetated waters of the United States /State (e.g., conservation easement). N. Mitigation site maintenance and monitoring must continue until the mitigation site has met success criteria stated in the mitigation plan. O. The Kingdom Hall of Jehovah's Witnesses mitigation site must be maintained in perpetuity by the Kingdom Hall of Jehovah's Witnesses or by another party designated by the Kingdom Hall of Jehovah's Witnesses. VI. MONITORING REQUIREMENTS: A. Monitoring of the mitigation site must utilize a quantitative function -based assessment to establish baseline conditions, set success criteria, and assess mitigation site progress. The California Rapid Assessment Method (CRAM), or Hydrogeomorphic Assessment (HGM) must be utilized. • 10 Kingdom Hall of Jehovah's 11C -028 • Witnesses Project • VII. NOTIFICATION REQUIREMENTS: A. The Kingdom Hall of Jehovah's Witnesses must report to the San Diego Water Board any noncompliance which may endanger human health or the environment. Any information shall be provided orally within 24 hours from the time the Kingdom Hall of Jehovah's Witnesses becomes aware of the circumstances. A written submission shall also be provided within five (5) days of the time the Kingdom Hall of Jehovah's Witnesses becomes aware of the circumstances. The written submission shall contain a written description of the incident and its cause, the period of the noncompliance including exact dates and times, and if the noncompliance has not been corrected, the anticipated time it is expected to continue; and steps taken or planned to reduce, eliminate, and prevent reoccurrence of the noncompliance. The San Diego Water Board may waive the above - required written report under this provision on a case -by -case basis if an oral report has been received within 24 hours. B. This Certification is not transferable in its entirety or in part to any person except after notice to the San Diego Water Board in accordance with the following terms: 1. Transfer of Property Ownership: The Kingdom Hall of Jehovah's Witnesses must notify the San Diego Water Board of any change in • ownership of the project area. Notification of change in ownership must include, but not be limited to, a statement that the Kingdom Hall of Jehovah's Witnesses has provided the purchaser with a copy of the Section 401 Water Quality Certification and that the purchaser understands and accepts the certification requirements and the obligation to implement them or be subject to liability for failure to do so; the seller and purchaser must sign and date the notification and provide such notification to the Executive Officer of the San Diego Water Board within 10 days of the transfer of ownership. 2. Transfer of Mitigation Responsibility: Any notification of transfer of responsibilities to satisfy the mitigation requirements set forth in Section V. and VII. for this Certification must include a signed statement from an authorized representative of the new party (transferee) demonstrating acceptance and understanding of the responsibility to comply with and fully satisfy the mitigation conditions and agreement that failure to comply with the mitigation conditions and associated requirements may subject the transferee to enforcement by the San Diego Water Board under Water Code section 13385, subdivision (a). Notification of transfer of responsibilities meeting the above conditions must be provided to the San Diego Water Board within 10 days of the transfer date. • 11 Kingdom Hall of Jehovah's 11C -028 Witnesses Project 3. Transfer of Post - Construction BMP Maintenance Responsibility: The • Kingdom Hall of Jehovah's Witnesses assumes responsibility for the inspection and maintenance of all post- construction structural BMPs until such responsibility is legally transferred to another entity. At the time maintenance responsibility for post- construction BMPs is legally transferred the Kingdom Hall of Jehovah's Witnesses must submit to the San Diego Water Board a copy of such documentation and must provide the transferee with a copy of a long -term BMP maintenance plan that complies with manufacturer specifications. Upon properly noticed transfers of responsibility, the transferee assumes responsibility for compliance with this Certification and references in this Certification to the Kingdom Hall of Jehovah's Witnesses will be interpreted to refer to the transferee as appropriate. Transfer of responsibility does not necessarily relieve the Kingdom Hall of Jehovah's Witnesses of this Certification in the event that a transferee fails to comply. C. The Kingdom Hall of Jehovah's Witnesses must notify the San Diego Water Board in writing at least 5 days prior to the actual commencement of dredge, fill, and discharge activities. D. The Kingdom Hall of Jehovah's Witnesses must notify the San Diego • Water Board in writing at least 5 days prior to the actual commencement of mitigation installation, and completion of mitigation installation. E. Within three months of the start of construction, the Kingdom Hall of Jehovah's Witnesses must provide the San Diego Water Board a draft preservation mechanism (e.g. deed restriction, conservation easement, etc.) that will protect all mitigation areas and their buffers in perpetuity. Within one year of the start of construction, the Kingdom Hall of Jehovah's Witnesses must submit proof of a completed preservation mechanism that will protect all mitigation areas and their buffers in perpetuity. The conservation easement, deed restriction, or other legal limitation on the mitigation property must be adequate to demonstrate that the site will be maintained without future development or encroachment on the site which could otherwise reduce the functions and values of the site for the variety of beneficial uses of waters of the United States that it supports. The legal limitation must prohibit, without exception, all residential, commercial, industrial, institutional, and transportation development, and any other infrastructure development that would not maintain or enhance the wetland and streambed functions and values of the site. The preservation mechanism must clearly prohibit activities that would result in soil disturbance or vegetation removal, other than the removal of non - native vegetation. Other infrastructure development to be • 12 Kingdom Hall of Jehovah's 11 C -028 Witnesses Project • prohibited includes, but is not limited to, additional utility lines, maintenance roads, and areas of maintained landscaping for recreation. F. Prior to project construction, the Kingdom Hall of Jehovah's Witnesses must submit to the San Diego Water Board a letter accepting full responsibility for the inspection and maintenance of all BMPs installed on all roads that are required to be improved as part of the project, including, but not limited to, Aussie Avenue and Calle Girasol. Alternatively, the Kingdom Hall of Jehovah's Witnesses may submit a letter documenting that the City of Temecula accepts full responsibility for the inspection and maintenance of all BMPs installed on all roads that are required to be improved as part of the project, including, but not limited to, Aussie Avenue and Calle Girasol. G. The San Diego Water Board may be requested to review planned BMP implementation that clearly demonstrate to meet or exceed the performance standards herein. Such requests must be made 30 days prior to the planned BMP implementation. VIII. REPORTING REQUIREMENTS: A. The Kingdom Hall of Jehovah's Witnesses must submit annual progress • reports describing status of compliance with all requirements of this Certification to the San Diego Water Board prior to August 1 of each year following the issuance of this Certification until the project has reached completion. The Kingdom Hall of Jehovah's Witnesses must submit a Final Project Annual Report to the San Diego Water Board prior to August 1 following completion of the project. The reports must include the following: 1. Date of construction initiation. 2. Projected date of construction completion. 3. Status of BMPs for the project. 4. Final Project Report: As -built drawings no bigger than 11 "X17." B. Mitigation monitoring reports must be submitted annually in accordance with their 401 application submittals and the Mitigation Monitoring and Reporting Plan Vegetative Restoration Assessors Parcel No. 957 - 120 -019 (Laurence N. Dean, July 2011). Annual monitoring reports must be submitted prior to December 1 of each year. Monitoring reports must include, but not be limited to, the following: • 13 Kingdom Hall of Jehovah's 11C-028 Witnesses Project 1. Names, qualifications, and affiliations of the persons contributing to the • report; 2. Date of initiation of mitigation installation and date mitigation installation was completed. 3. Mitigation as- builts, including topography maps and planting locations. 4. Tables presenting the raw data collected in the field as well as analyses of the physical and biological data; 5. Topographic complexity characteristics at each mitigation site; 6. Upstream and downstream habitat and hydrologic connectivity; 7. Source of hydrology; 8. Width of native vegetation buffer around the entire mitigation site; 9. Qualitative and quantitative comparisons of current mitigation conditions with pre - construction conditions and previous mitigation monitoring results. 10.Stream Photodocumentation, including all areas of permanent and • temporary impact, prior to and after project construction, and mitigation areas, including all areas of permanent and temporary impact, prior to and after project construction. Photo documentation must be conducted in accordance with guidelines posted at http:// www.waterboards.ca.gov /sandiego /water issues /programs /401 certification /docs /StreamPhotoDocSOP.pdf. In addition, photo documentation must include Geographic Positioning System (GPS) coordinates for each of the photo points referenced. 11.A Survey report documenting boundaries of mitigation area, including Geographic Information System (GIS) shape files (polygons) of the impact and mitigation areas (Two GPS readings (points) must be taken on each line of the polygon and the polygon must have a minimum of 10 points). GIS metadata must also be submitted. C. In the event that the proposed mitigation does not obtain the 3` year success criteria milestones for mitigation as presented in table 1 of the Mitigation Monitoring and Reporting Plan Vegetative Restoration Assessors Parcel No. 957 -120 -019 (Laurence N. Dean, July 2011), the applicants must provide the San Diego Water Board with a technical report detailing the actions that will be taken to bring the mitigation up to the success criteria. This report must also provide an evaluation of • 14 Kingdom Hall of Jehovah's 11C-028 Witnesses Project • alternative mitigation opportunities within the Auld Hydrologic Area to be utilized for additional mitigation, if portions of the required mitigation are unsuccessful after five years. D. In the event that the proposed mitigation does not obtain the 4th year success criteria milestones for mitigation, The applicants must provide the San Diego Water Board with a technical report detailing the actions that will be taken to bring the mitigation up to the success criteria, and a conceptual mitigation plan for an alternative mitigation site within the Auld Hydrologic Area to be utilized for additional mitigation, if portions of the required mitigation are unsuccessful after five years. The mitigation plan must mitigate for any portion of the mitigation that does not meet final success criteria, at a ratio of 2:1. E. In the event that the proposed mitigation does not obtain full success with the 5th year success criteria the applicants must finalize the conceptual mitigation plan (see condition No.10) and submit the plan to the San Diego Water Board within 30 days of the 5 year monitoring report period. No later than 90 days following San Diego Water Board acceptance of the final mitigation plan, or 30 days after San Diego Water Board receipt of the plan, the applicants must begin implementation of the final mitigation plan. F. The submittal of information under this Certification is required pursuant to • California Water Code (CWC) sections 13267 and 13283. Civil liability may be administratively imposed by the San Diego Water Board for failure to submit required information pursuant to CWC section 13268 or 13385. G. All reports and information submitted to the San Diego Water Board must be submitted in both hardcopy and electronic format. The preferred electronic format for each report submission is one file in PDF format that is also Optical Character Recognition (OCR) capable. H. All applications, reports, or information submitted to the San Diego Water Board must be signed and certified as follows: 1. For a corporation, by a responsible corporate officer of at least the level of vice president. 2. For a partnership or sole proprietorship, by a general partner or proprietor, respectively. 3. For a municipality, or a state, federal, or other public agency, by either a principal executive officer or ranking elected official. 4. A duly authorized representative may sign applications, reports, or • information if: 15 .... - .ry -... qty Kingdom Hall of Jehovah's 11C-028 Witnesses Project • a. The authorization is made in writing by a person described above. b. The authorization specifies either an individual or position having responsibility for the overall operation of the regulated activity. c. The written authorization is submitted to the San Diego Water Board Executive Officer. I. All applications, reports, or information submitted to the San Diego Water Board must be signed and certified as follows: "I certify under penalty of law that I have personally examined and am familiar with the information submitted in this document and all attachments and that, based on my inquiry of those individuals immediately responsible for obtaining the information, I believe that the information is true, accurate, and complete. I am aware that there are significant penalties for submitting false information, including the possibility of fine and imprisonment." J. The Kingdom Hall of Jehovah's Witnesses must submit reports required under this Certification, or other information required by the San Diego Water Board, to: • Executive Officer California Regional Water Quality Control Board San Diego Region Attn: 401 Certification; 11C -028 9174 Sky Park Court, Suite 100 San Diego, California 92123 IX. CEQA FINDINGS: A. The City of Temecula, County of Riverside is the lead agency under the California Environmental Quality Act (Public Resources Code section 21000, et seq., (CEQA)),and filed a Notice of Determination on September 14, 2010, fora Mitigated Negative Declaration under CEQA Guidelines Title 14, California Code of Regulations. The City of Temecula has determined the project will not have a significant effect on the environment and mitigation measures were made a condition of the project. B. The San Diego Water Board has reviewed the lead agency's Mitigated Negative Declarationind also finds that the project as proposed will not have a significant effect on the environment with conditioned 'mitigation • 16 Kingdom Hall of Jehovah's 11C -028 Witnesses Project • measures and therefore determines that issuance of this Certification is consistent with the Mitigated Negative Declaration: X. PUBLIC NOTIFICATION OF PROJECT APPLICATION: A. On April 8, 2011, receipt of the project application was posted on the San Diego Water Board web site to serve as appropriate notification to the public. No public comments were received. XI. SAN DIEGO WATER BOARD CONTACT PERSON: Chiara Clemente California Regional Water Quality Control Board, San Diego Region 9174 Sky Park Court, Suite 100 San Diego, CA 92123 858 - 467 -2359 cclemente@waterboards.ca.gov XII. WATER QUALITY CERTIFICATION: I hereby certify that the proposed discharge from the Kingdom Hall of Jehovah's Witnesses Project (Project No. 11C -028) will comply with the applicable provisions of sections 301 ( "Effluent Limitations "), 302 ( "Water Quality Related • Effluent Limitations "), 303 ( "Water Quality Standards and Implementation Plans "), 306 ( "National Standards of Performance "), and 307 ( "Toxic and Pretreatment Effluent Standards ") of the Clean Water Act. This discharge is also regulated under State Water Board Order No. 2003 - 0017 -DWQ, "Statewide General Waste Discharge Requirements for Dredged or Fill Discharges That Have Received State Water Quality Certification (General WDRs)," which requires compliance with all conditions of this Water Quality Certification. Please note that enrollment under Order No. 2003 - 017 -DWQ is conditional and, should new information come to our attention that indicates a water quality problem, the San Diego Water Board may issue waste discharge requirements at that time. Except insofar as may be modified by any preceding conditions, all Certification actions are contingent on (a) the discharge being limited and all proposed mitigation being completed in strict compliance with the applicants' project description and /or on the attached Project Information Sheet, and (b) on compliance with all applicable requirements of the Water Quality Control Plan for the San Diego Basin Region (9) (Basin Plan). ,`D W / 20 I ) DAVID W. GIBSON Date Executive Officer • Regional Water Quality Control Board 17 Kingdom Hall of Jehovah's 11C -028 Witnesses Project Attachments: 1. Project Information • 2. Distribution List 3. Location Map 4. Site Map 5. Mitigation Map 6. Checklist of Required Reports and Notifications • • 18 11C-028 • ATTACHMENT 'I PROJECT INFORMATION Applicant: Joseph van Haaster Kingdom.Hall of Jehovah's Witnesses 41221 Via Anita Temecula, CA 92521 Telephone: 951- 662 -9405 Email: joe @dezineworks4u.com Project Name: Kingdom Hall of Jehovah's Witnesses Project Location: Latitude: 33.5406 Longitude: - 117.1096 Type of Project: Construction Project Need for Project: This Church facility has been approved by City of Temecula planning commission. Project Description: The project is the construction of a 8,284- square foot single - story building, with 49,023- square feet of parking, and 37,778 - square feet of landscaping. The project site is located east of S Calle Girasol, north of Calle Chapos, and south of Aussie Road within the City of Temecula in Riverside County. The project will widen a previously installed dip crossing on Aussie Road where it crosses an ephemeral streambed that is a tributary to Murrieta Creek which eventually flows into the Santa Margarita River. The concrete crossing will impact 1,817- square feet (0.0417 -acre) of streambed. Rip Rap sized at one -half ton will be placed before the crossing and impact 274 - square feet (0.0063 -acre) of streambed. ITotal project (impacts`.from the crossing will be 0:0,63 - acre (56 linea(feet). pie project will be mitigated by the removal of non - native species and the restoration Of, 0 .26 -acre (480 - linear feet) along an ephemeral stream located on the project site Federal U.S. Army,Corps of Engineers §404, NWP 14, ACOE, Jim Agency /Permit: Mace Other Required California Department of Fish and Game Streambed Regulatory Approvals: Alteration Agreement, Anna Milloy S 11C-028 California Kingdom Hall of Jehovah's Witnesses, Mitigated Negative • Environmental Quality Declaration was filed September 17, 2010, City of Temecula, Act (CEQA) County of Riverside Compliance: Receiving Water: Unnamed ephemeral tributary to Murrieta Creek, Gertrudis HSA (902.42) Affected Waters of the Permanent: United States and Streambed: 0.063 (56 linear feet) State: Related Projects There are no projects that have been proposed related to the Implemented /to be current project. Implemented by the Applicant(s): Compensatory Streambed: 0.021 acre of non - wetland waters Mitigation: Upland: 0.24 acre of uplands Restoration will occur on -site along 480 linear feet of streambed. Mitigation Monitoring and Reporting Plan Vegetative Restoration Assessors Parcel No. 957 - 120 -019 (Laurence N. • Dean, July 2011) Mitigation Location: On -site Latitude: 33.5406 Longitude: - 117.1096 Best Management Bio- swales, pervious parking lot, and retention basins are Practices (BMPs): included as part of the project. 3164 Cale Girasol WQMP, prepared by JHA Engineering on Mardi 12, 2011 Public Notice: On April 8, 2011 receipt of the project application was posted on the San Diego Water Board web site to serve as appropriate notification to the public. No public comments were received. Fees: Total Due: $640.00 Total Paid: $640.00 (check No. 1075) • • 11C-028 • ATTACHMENT2 DISTRIBUTION LIST Jim Mace U.S. Army Corps of Engineers, Regulatory Branch Los Angeles District 915 Wilshire Blvd. Suite 1101 Los Angeles, CA 90017 James.e.mace @usace.army.mil Anna Ewing California Department of Fish and Game Inland Deserts Region 3602 Inland Empire Blvd Ontario, CA 91764 Aewing @dfg.ca.gov U.S. Department of the Interior Fish and Wildlife Service 6010 Hidden Valley Road Carlsbad, CA 92011 • U.S. EPA, OWOW, Region 9 75 Hawthorne St., San Francisco, CA 94105 R9- WTR8- Mailbox State Water Resources Control Board, Division of Water Quality 401 Water Quality Certification and Wetlands Unit P.O. Box 100 Sacramento, CA 95812 -0100 Stateboard401 (c� waterboards.ca.gov 11C-028 CIWQS: Regulatory Measure ID: 378561 • Place ID: 765313 Party ID: 526525 • • . Water Quality Management Plan (WQMP) Kingdom Hall of Jehovah's Witnesses • II. Site Characterization Land Use Designation or Zoning: Non Residential /Industrial Building Current Property Use: Vacant, Undeveloped Proposed Property Use: Church Availability of Soils Report: Y X N ❑ Note: A soils report is required if infiltration BMPs are • utilized. Attach report in Appendix E. Phase 1 Site Assessment: Y X N Note: If prepared, attached remediation summary and use restrictions in Appendix K • A -6 WQMP Preparation/Revision Date: 12/6/08, 7/17/09, 8/25/09, 10/14/2009, 12/12/2010 Water Quality Management Plan (WQMP) Kingdom Hall of Jehovah's Witnesses • Receiving Waters for Urban Runoff from Site Instructions: On the following page, list in order of upstream to downstream, the receiving waters that the project is tributary to. Continue to fill each row with the receiving water's 303(d) listed impairments, designated beneficial uses, and proximity, if any, to a RARE beneficial use. • • A -7 WQMP Preparation/Revision Date: 12/6/08, 7/17/09, 8/25/09, 10/14/2009, 12/12/2010 Water Quality Management Plan (WQMP) Kingdom Hall of Jehovah's Witnesses • Attachment to Section II Receiving Waters and 303(d) List Designated Beneficial Proximity to RARE Hydrology Unit Impairments Uses Beneficial Use MUN, AGR, IND, PROC, Not a Rare Water Body Santa Gertrudis Creek None GWR, REC1, REC2, WA, RM, Approx. 2.42) 1/5 miles from WILD site. MUN, AGR, IND, PROC, Not a Rare Water Body Murrieta Creek (HSA Phosphorus, Nitrogen, GWR, REC1, REC2, WARM, Approx. 4 1/2 miles from • 2.32,2.52) Iran, Manganese WILD site. Santa Margarita River- MUN, AGR, IND, REC1, Rare Water Body Upper portion (HSA Phosphorus REC2, WARM, COLD, WILD, Approx. 8 miles from 2.22, 2.21) RARE site. Santa Margarita River- MUN, AGR, IND, PROC, Rare Water Body Lower portion (HSA NONE GWR, REC1, REC2, WARM, Approx. 23 miles from 2.13, 2.12, 2.11) COLD, WILD, RARE site. Rare Water Body Santa Margarita Lagoon Eutrophic REC1, REC2, EST, WILD, Approx. 34 miles from (HSA 2.11) RARE, MAR, MIGR, SPWN site. IND, NAV, REC1, REC2, Rare Water Body Pacific Ocean None COMM, BIOL, WILD, RARE, Approx. 35 miles from MAR, AQUA, MIGR, SPWN, site. SHELL • A -8 WQMP Preparation/Revision Date: 12/6/08, 7/17/09, 8/25/09, 10/14/2009, 12/12/2010 Water Quality Management Plan (WQMP) Kingdom Hall of Jehovah's Witnesses • III. Pollutants of Concern Potential pollutants associated with Urban Runoff from the proposed project must be identified. Exhibit B of the WQMP provides brief descriptions of typical pollutants associated with Urban Runoff and a table that associates typical potential pollutants with types of development (land use). It should be noted that at the Co- Permittees discretion, the Co- Permittees may also accept updated studies from the California Association of Stormwater Quality Agencies (CASQA), USEPA, SWRCB and/or other commonly accepted agencies /associations acceptable to the Co- Permittee for determination of Pollutants of Concern associated with given land use. Additionally, in identifying Pollutants of Concern, the presence of legacy pesticides, nutrients, or hazardous substances in the site's soils as a result of past uses and their potential for exposure to Urban Runoff must be addressed in project - specific WQMPs. The Co- Permittee may also require specific pollutants commonly associated with urban runoff to be addressed based on known problems in the watershed. The list of potential Urban Runoff pollutants identified for the project must be compared with the pollutants identified as causing an impairment of Receiving Waters, if any. To identify pollutants impairing proximate Receiving Waters, each project proponent preparing a project- specific WQMP shall, at a minimum, do the following: 1. For each of the proposed project discharge points, identify the proximate Receiving "Water for each discharge point, using hydrologic unit basin numbers as identified in the most recent version of the Water Quality Control Plan for the Santa Ana River Basin or the San Diego Region. 2. Identify each proximate identified above that is listed on the most recent list of Clean Water Act Section 303(d) list of impaired water bodies, which can be found at website • www.swrcb .ca.gov /tmdl /303d_lists.html. List all pollutants for which the proximate Receiving Waters are impaired. 3. Compare the list of pollutants for which the proximate Receiving Waters are impaired with the pollutants expected to be generated by the project. Urban Runoff Pollutants: Insert potential stormwater pollutants associated with project type as presented in Exhibit B of Riverside County WQMP. Additionally, any other potential stormwater pollutants that are project - specific must also be identified. Refer to Attachment • A -9 WQMP Preparation /Revision Date: 12/6/08, 7/17/09, 8/25/09, 10/14/2009, 12/12/2010 • Attachment to Section III. Item #1. Addressed in Section II, Receiving Waters table. Item #2. Addressed in Section II, Receiving Waters table. Item #3. `Parking Lots' will be used as the pollutant category for this WQMP. As such, the pollutants associated with parking lots are listed below. POLLUTANTS; '' POTENTIAL 303,(d) I;ISTING ., EXpecte3 r �' Pptenhals a �� t xu t9 • 1 ,,y n.;e [4 ..._ r •. �v ar �' .. w.:a . n, ... ! �u^ .k. *.en"- ......�: a. �, „,i . 4.. r. -u. �l . _'. 4.... SEDIMENT /TURBIDITY LANDSCAPING NO NUTRIENTS LANDSCAPING YES(PHOSPHORUS, NITROGEN) ORGANIC LANDSCAPING NO COMPOUND TRASH /DEBRIS PARKING LOT NO • OXYGEN DEMANDING LANDSCAPING NO SUBSTANCES BACTERIA/ VIRUSES PARKING LOT NO OIL /GREASE PARKING LOT NO PESTICIDES LANDSCAPING NO METALS PARKING LOT YES (IRON/MANGANESE) Pollutant of Concern: Murrieta Creek is listed on the 2006 Clean Water Act Section 303(d) List of Water Quality Limited Segments as being impaired by Phosphorus, Nitrogen, Iron, and Manganese. As such, these pollutants are the Pollutants of Concern for this project. Legacy Pollutants: • This is raw land, never developed. The legacy pollutants are the ones that are usually found in this area. Riverside County Water Quality Management Plan Exhibit B • carbohydrates, and fats are examples of biodegradable organic compounds. Compounds such as ammonia and hydrogen sulfide are examples of oxygen - demanding compounds. The oxygen demand of a substance can lead to depletion of dissolved oxygen in a water body and possibly the development of septic conditions. 0 Oil and Grease — Oil and grease are characterize as high - molecular weight organic compounds. Primary sources of oil and grease are petroleum hydrocarbon products, motor products from leaking vehicles, esters, oils, fats, waxes, and high molecular- weight fatty acids. Introduction of these pollutants to the water bodies are very possible due to the wide uses and applications of some of these products in municipal, residential, commercial, industrial, and construction areas. Elevated oil and grease content can decrease the aesthetic value of the water body, as well as the water quality. Potential Pollutants Generated by Land Use Type (Excerpted, with minor nvlalon, from the San Bernardino Water Quality Management Plan dated April 14, 7004) • Oxygen Bacteria Oil Type of Development Sediment/ Organic Trash Demanding & & (Land Use) Turbidity Nutrients Compounds & Debris Substances V nises Grease Pesticides Metals Detached Residential E E N E E E E E N Development Attached Residential E E N E pm P pp) E N Development Commercial/ Industrial Pm P0) Plc E PM PP E pin P Development • Automotive Repair N N EN E N N E N P Shops Restaurants N N N E E E E N N Hillside E E N E E E E E N Development Parking Pill Pro EN E pirh pier E pm E Lots Streets, Highways & E Pith EN E poi P( E Wll E / Freeways Abbreviations: E = Expected P = Potential N = Not expected Notes: (1) A potential pollutant if landscaping or open area exists on the ProjecLsite. (2) A potential pollutant if the project includes uncovered parking areas. (3) A potential pollutant if land use involves animal waste:BIRD WASTE) (4) Specifically, petroleum hydrocarbons. (FUEL) (5) Specifically, solvents. (6) Bacterial indicators are routinely detected in pavement runoff. I . Water Quality Management Plan (WQMP) Kingdom Hall of Jehovah's Witnesses • • . A -10 WQMP Preparation/Revision Date: 12/6/08, 7/17/09, 8/25/09, 10/14/2009, 12/12/2010 Water Quality Management Plan (WQMP) Kingdom Hall of Jehovah's Witnesses • IV. Hydrologic Conditions of Concern Impacts to the hydrologic regime resulting from the Project may include increased runoff volume and velocity; reduced infiltration; increased flow frequency, duration, and peaks; faster time to reach peak flow; and water quality degradation. Under certain circumstances, changes could also result in the reduction in the amount of available sediment for transport; storm flows could fill this sediment- carrying capacity by eroding the downstream channel. These changes have the potential to permanently impact downstream channels and habitat integrity. A change to the hydrologic regime of a Project's site would be considered a hydrologic condition of concern if the change would have a significant impact on downstream erosion compared to the pre - development condition or have significant impacts on stream habitat, alone or as part of a cumulative impact from development in the watershed. This project - specific WQMP must address the issue of Hydrologic Conditions of Concern unless one of the following conditions are met: ■ Condition A: Runoff from the Project is discharged directly to a publicly- owned, operated and maintained MS4; the discharge is in full compliance with Co- Permittee requirements for connections and discharges to the MS4 (including both quality and quantity requirements); the discharge would not significantly impact stream habitat in proximate Receiving Waters; and the discharge is authorized by the Co- Permittee. • Condition B: The project disturbs less than 1 acre. The disturbed area calculation should include all disturbances associated with larger plans of development. • • Condition C: The project's runoff flow rate, volume, velocity and duration for the post - development condition do not exceed the pre - development condition for the 2 -year, 24 -hour and 10 -year 24 -hour rainfall events. This condition can be achieved by minimizing impervious area on a site and incorporating other site- design concepts that mimic pre - development conditions. This condition must be substantiated by hydrologic modeling methods acceptable to the Co- Permittee. This Project meets the following condition: CONDITION C Supporting engineering studies, calculations, and reports are included in Appendix C and attachment to section IV. See attachment for 100 year — 24 hour 2 year — 24 hour 10 year — 24 hour Precondition Post - condition Precondition Post- condition Discharge (cfs) 2.90 3.59 5.17 5.90 Velocity (fps) 4.6 5.6 8.2 9.4 Volume (cubic feet) 0.36 0.38 0.59 0.63 Duration (minutes) 10 MIN 10 MIN 10 MIN 10 MIN • A -11 WQMP Preparation/Revision Date: 12/6/08, 7/17/09, 8/25/09, 10/14/2009, 12/12/2010 Water Quality Management Plan (WQMP) Kingdom Hall of Jehovah's Witnesses • V. Best Management Practices V.1 SITE DESIGN BMPs Project proponents shall implement Site Design concepts that achieve each of the following: 1) Minimize Urban Runoff 2) Minimize Impervious Footprint 3) Conserve Natural Areas 4) Minimize Directly Connected Impervious Areas (DCIAs) The project proponent should identify the specific BMPs implemented to achieve each Site Design concept and provide a brief explanation for those Site Design concepts considered not applicable. Instructions: In field below, provide narrative describing which site design concepts were incorporated into project plans. If the project proponent implements a Co- Permittee approved alternative or equally - effective Site Design BMP not specifically described below, the Site Design BMP checkbox in Table I should be marked and an additional description indicating the nature of the BMP and how it addresses the Site Design concept should be provided. Continue with completion of Table I. • Note: The Co- Permittees general plan or other land use regulations /documents may require several measures that are effectively site design BMPs (such as minimization of directly connected impervious areas and /or setbacks from natural stream courses). The Project Proponent should work with Co- Permittee staff to determine if those requirements may be interpreted as site design BMPs for use in this table/narrative. See Section 4.5.1 of the WQMP for additional guidance on Site Design BMPs. Following Table 1: if a particular Site Design BMP concept is found to be not applicable, please provide a brief explanation as to why the concept cannot be implemented. Also include descriptions explaining how each included BMP will be implemented. In those areas where Site Design BMPs require ongoing maintenance, the inspection and maintenance frequency, the inspection criteria, and the entity or party responsible for implementation, maintenance, and /or inspection shall be described. The location of each Site Design BMP must also be shown on the WQMP Site Plan included in Appendix B. One retention basin provided for the run off. The parking spaces have paver stones totaling 15,066 square feet. (Reference Acker -Stone Uni Eco -Stone Interlocking Erosion Control System Gravel in stone spaces to allow water to drain through) The bio -swale has an area of 1,215 square feet 5 foot bottom width, 4:1 side slope with a 0.50% grade, design length of 50 lin. Feet. The bio- retention basin has an area of 29,00 square feet. • Refer to appendix F for BMP calculations. A -12 WQMP Preparation/Revision Date: 12/6/08, 7/17/09, 8/25/09, 10/14/2009, 12/12/2010 Water Quality Management Plan (WQMP) Kingdom Hall of Jehovah's Witnesses • Included Design Technique Specific BMP Yes No N/A Concept (1).Maximize the permeable area (See Section 4.5.1 of X ❑ ❑ the WQMP). (2),Incorporate landscaped buffer areas between X ❑ ❑ sidewalks and streets. (3).Maximize canopy interception and water a conservation by preserving existing native trees and X ❑ Minimize shrubs, and planting additional native or drought tolerant U trees and large shrubs. Urban (4).Use natural drainage systems. ❑ X to (5).Where soils conditions are suitable, use perforated X ❑ ❑ Runoff pipe or gravel filtration pits for low flow infiltration. (6).Construct onsite ponding areas or retention facilities to increase opportunities for infiltration consistent with X ❑ ❑ vector control objectives. (7).Other comparable and equally effective site design concepts as approved by the Co- Permittee (Note: ❑ ❑ X Additional narrative required to describe BMP and how it • addresses Site Design concept). (I) Permeable areas will be installed by placing permeable pavers in the parking lot (Refer to Appendix F). The 15,066 sq ft of permeable paver stones will be installed to allow stormwater to stay onsite. Permeability of the stones is to be not less than 5 gallons per minute per square foot. The pavers will be installed to allow maximum infiltration. (2) Large landscape areas are provided to allow maximum storm water absorption (Refer to Landscape map). (3) All plants are drought tolerant (Refer to Landscape map). Landscape to conform to Ordinance #895. Plants used are found on the Riverside County California friendly plant list. (4) Natural drainage N/A (5) A bio- retention basin, bio - swales and permeable paver stones will be installed to allow stormwater to stay onsite. (6) This site has one retention basin. According to the engineer's design the dimensions are T=6 feet if His 8 feet or less. T =8 feet if H is greater than 8 feet and less than 20 feet. H =3 feet 6 inches, unless otherwise specified. • A -13 WQMP Preparation/Revision Date: 12/6/08, 7/17/09, 8/25/09, 10/14/2009, 12/12/2010 Water Quality Management Plan (WQMP) Kingdom Hall of Jehovah's Witnesses • Table 1. Site Design BMPs (Cont.) Included Design Technique Specific BMP Yes No N/A Concept (8).Maximize the permeable area (See Section 4.5.1 of X ❑ ❑ the WQMP). (9).Construct walkways, trails, patios, overflow parking N lots, alleys, driveways, low - traffic streets and other low i. - traffic areas with open - jointed paving materials or X ❑ ❑ w Minimize permeable surfaces, such as pervious concrete, c porous asphalt, unit pavers, and granular materials. V • Impervious (10).Construct streets, sidewalks and parking lot aisles tn to the minimum widths necessary, provided that public X ❑ ❑ y safety and a walk able environment for pedestrians are 0 Footprint not compromised. m iil (11).Reduce widths of street where off - street parking is ❑ ❑ X available. (12).Minimize the use of impervious surfaces, such as X ❑ ❑ • decorative concrete, in the landscape design. (13).Other comparable and equally effective site design concepts as approved by the Co- Permittee ❑ ❑ X (Note: Additional narrative required describing BMP in and how it addresses Site Design concept). a (14).Conserve natural areas (See WQMP Section ❑ ❑ X c 4.5.1). Conserve c o (15).Maximize canopy interception and water c conservation by preserving existing native trees and ❑ ❑ X Natural shrubs, and planting additional native or drought TA tolerant trees and large shrubs. 0 Areas y (16).Use natural drainage systems. ❑ ❑ x H (17).Other comparable and equally effective site design concepts as approved by the Co- Permittee ❑ ❑ X (Note: Additional narrative required describing BMP and how it addresses Site Design concept). (8) To maximize permeable areas, no curb will be added. Storm water will drain directly into the landscape. (9) Permeable areas will be added by placing permeable pavers in the parking lot (Refer to Appendix F). The 15,066 sq ft of permeable paver stones will be installed to allow stormwater to stay onsite. Permeability of the stones is to be not less than 5 gallons per minute per square foot. (10) Streets and sidewalks are not part of this project. All parking lot aisles will be in compliance with ADA regulations. No decorative concrete will be added to this site. (13 -17) Site was previously rough - graded and there are no natural areas to conserve. • A -14 WQMP Preparation /Revision Date: 12/6/08, 7/17/09, 8/25/09, 10/14/2009, 12/12/2010 Water Quality Management Plan (WQMP) • Kingdom Hall of Jehovah's Witnesses Table 1. Site Design BMPs (Cont.) Included Design Technique Specific BMP Yes No N/A Concept (18)Residential and commercial sites must be designed to contain and infiltrate roof runoff, or direct X ❑ ❑ roof runoff to vegetative swales or buffer areas, where feasible. (19)Where landscaping is proposed, drain impervious sidewalks, walkways, trails, and patios into adjacent X ❑ ❑ landscaping. (20)Increase the use of vegetated drainage swales in lieu of underground piping or imperviously lined X ❑ ❑ swales. (21)Rural swale system: street sheet flows to • Minimize vegetated swale or gravel shoulder, curbs at street ❑ ❑ X corners, culverts under driveways and street crossings. (22)Urban curb /swale system: street slopes to curb; ❑ ❑ x v periodic swale inlets drain to vegetated swale /biofilter. a Directly a) (23)Dual drainage system: First flush captured in street catch basins and discharged to adjacent vegetated j Connected swale or gravel shoulder, high flows connect directly to ❑ ❑ X c MS4s. Impervious (24)Design driveways with shared access, flared (single lane at street) or wheel strips (paving only under tires); or, drain into landscaping prior to ❑ ❑ X Areas discharging to the MS4. (25)Uncovered temporary or guest parking on private (DCIAs) residential lots may be paved with a permeabl ❑ ❑ X surface, or designed to drain into landscaping prior to discharging to the MS4. (26)Where landscaping is proposed in parking areas, x ❑ incorporate landscape areas into the drainage design. (27)Overflow parking (parking stalls provided in excess of the Co- Permittee's minimum parking requirements) X ❑ ❑ may be constructed with permeable paving. (28)Other comparable and equally effective design • concepts as approved by the Co- Permittee (Note: ❑ ❑ Additional narrative required describing BMP and how it addresses Site Design concept). Non - applicable Site Design BMPs: A -15 WQMP Preparation/Revision Date: 12/6/08, 7/17/09, 8/25/09, 10/14/2009, 12/12/2010 Water Quality Management Plan (WQMP) Kingdom Hall of Jehovah's Witnesses • Table 1. Site Design BMPs (Cont.) (18) The roof will be designed to direct roof runoff to vegetative swales or buffer areas, where feasible. (19) Large landscape areas are provided to allow maximum storm water absorption (Refer to Landscape map). All plants are drought tolerant (Refer to Landscape map). Landscape to conform to Ordinance #895. Plants used are found on the Riverside County California friendly plant list. (20) Large landscape areas are provided to allow maximum storm water absorption (Refer to Landscape map). All plants are drought tolerant (Refer to Landscape map). Landscape to conform to Ordinance #895. Plants used are found on the Riverside County California friendly plant list. (26) Large landscape areas are provided to allow maximum storm water absorption (Refer to Landscape map). All plants are drought tolerant (Refer to Landscape map). Landscape to conform to Ordinance #895. Plants used are found on the Riverside County California friendly plant list. • • A -16 WQMP Preparation/Revision Date: 12/6/08, 7/17/09, 8/25/09, 10/14/2009, 12/12/2010 Water Quality Management Plan (WQMP) Kingdom Hall of Jehovah's Witnesses • Project Site Design BMPs: Roof drainage is directed to grass bio- swales. Parking spaces are porous pavement. Overflow is directed to an infiltration basin. The infiltration basin is designed to allow overflow into a Stormceptor M.H.to remove any additional contaminants. • • A -17 WQMP Preparation/Revision Date: 12/6/08, 7/17/09, 8/25/09, 10/14/2009, 12/12/2010 Water Quality Management Plan (WQMP) Kingdom Hall of Jehovah's Witnesses V.2 SOURCE CONTROL BMPs Instructions: Complete Table 2. Table 2. Source Control BMPs Check One If not applicable, state BMP Name Included Applicable brief reason Non - Structural Boone Control BMRsY 2 1 : '' Education for Property Owners, Operators, Tenants, Occupants, (1).X ❑ or Employees Activity Restrictions (2).X ❑ Irrigation System and Landscape Maintenance (3).X ❑ Common Area Litter Control (4).X ❑ Street Sweeping Private Streets and Parking Lots (5)X. ❑ Drainage Facility Inspection and Maintenance (6)X. ❑ StNCt ural`Souree Contiol MS4 Stenciling and Signage (7).X Landscape and Irrigation System Design (8)X. ❑ Protect Slopes and Channels X No slopes Provide Community Car Wash Racks ❑ X Car washing not allowed Properly Design: X • Fueling Areas ❑ X No fueling area Air/Water Supply Area Drainage ❑ X Not provided Trash Storage Areas X ❑ The trash area will be cleaned every week Loading Docks ❑ X No loading docks Maintenance Bays ❑ X No bays Vehicle and Equipment Wash Areas ❑ X No wash area Outdoor Material Storage Areas ❑ X No outdoor storage Outdoor Work Areas or Processing Areas ❑ X No processing area Provide Wash Water Controls for Food Preparation Areas ❑ X No food prep areas Instructions: Provide narrative below describing how each included BMP will be implemented, the implementation frequency, inspection and maintenance frequency, inspection criteria, and the entity or party responsible for implementation, maintenance, and /or inspection. The location of each structural BMP must also be shown on the WQMP Site Plan included in Appendix B. (1).Joseph van Haaster will train 10 -12 other men on source control BMPs. (2).No activities other than religious services will be allowed. (3).Joseph van Haaster will train 10 -12 other men on how to maintain the approved low maintenance low water usage system. (4).The common areas will be cleaned every week. (5).The parking lot will be cleaned every week. (6).The drainage system will be cleaned at least once a week. (7).After construction, appropriate stenciling and /or signage will be added. (8).As part of our CUP, only approved system will be used. Appendix D includes copies of the educational materials that will be used in implementing this project- specific WQMP. A -18 WQMP Preparation/Revision Date: 12/6/08, 7/17/09, 8/25/09, 10/14/2009, 12/12/2010 Attachment to Section V.2 . y ACTIVITY SPECIFIC�FREQUENC�Y ,- RESPONSIBLE'PARTYa' , ,. I- -r, e ., , ` ' f '+ s.-4, nif �y� ?t+ ' " r i p " Fey+ Y... - .. x 5 ¢ a , -' 0wskt�`! - i '7 COntrbls ` s 4ie, ;,, "- ' y , -zs , ' ' ." s. r � �{` NOn Sh11CtUnn1Sour a Q .'' ,-, [ ' ' • Provided at occupancy, within Education three months for new hires, Joseph van Haaster and annually for existing employees Activity Restrictions Daily Joseph van Haaster Landscape Maintenance Bi- weekly Joseph van Haaster Litter Control Daily Joseph van Haaster • Parking Lot/Street Sweeping Monthly Joseph van Haaster Drainage Inspection and Monthly Joseph van Haaster Maintenance ( y 411.-+- ,, .. s- ,' ` " F ; d u y4 r ounce Controls o f f a i 1 J • Stenciling and Signage Bi- annually Joseph van Haaster Irrigation System Maintenance Same as landscape Joseph van Haaster maintenance Slopes and Channels Same as landscape Joseph van Haaster maintenance Trash Storage Areas Daily Joseph van Haaster Water Quality Management Plan (WQMP) Kingdom Hall of Jehovah's Witnesses • V.3 TREATMENT CONTROL BMPs Instructions: I. Provide narrative below describing each Treatment Control BMP. Include location, ident( the sizing criteria [i.e., Urban Runoff quality design flow (QBMP) or the Urban Runoff quality design volume (VBMP), preliminary design calculations, for sizing BMPs, maintenance procedures, and the frequency of maintenance procedures necessary to sustain BMP effectiveness. The location of each Treatment Control BMP must also be shown on the Site Plan included in Appendix B. 2. Complete Table 3: Treatment Control BMP Selection Matrix Directions for completing Table 3: • For each pollutant of concern enter 'yes" if identified using Exhibit B (Riverside County WQMP - General Categories of Pollutants of Concern per the instructions specified in Section iII of this Template), or "no" if not identified for the project. • Check the boxes of selected BMPs that will be implemented for the project to address each pollutant of concern from the project as identified using Exhibit B. Treatment Control BMPs must be selected and installed with respect to identified pollutant characteristics and concentrations that will be discharged from the site. • For any identified pollutants of concern not listed in the Treatment Control BMP Selection Matrix, provide an explanation (in space below) of how they will be addressed by Treatment Control BMPs. 3. in addition to completing Table 3, provide detailed descriptions on the location, implementation, installation, and • long -term O &M of planned Treatment Control BMPs. For identified pollutants of concern that are causing an impairment in receiving waters, the project WQMP shall incorporate one or more Treatment Control BMPs of medium or high effectiveness in reducing those pollutants. It is the responsibility of the project proponent to demonstrate, and document in the project WQMP, that all pollutants of concern will be fully addressed The Agency may require information beyond the minimum requirements of this WQMP to demonstrate that adequate pollutant treatment is being accomplished Supporting engineering calculations for QBMP and/or 1/ me, and Treatment Control BMP design details are included in Appendix F. Note: Projects that will utilize infiltration -based Treatment Control BMPs (e.g., Infiltration Basins, Infiltration Trenches, Porous Pavement) must include a copy of the property/project soils report as Appendix E to the project - specific WQMP. The selection of a Treatment Control BMP (or BMPs) for the project must specifically consider the effectiveness of the Treatment Control BMP for pollutants identified as causing an impairment of Receiving Waters to which the project will discharge Urban Runoff To ensure that storm water discharges are minimized from leaving the site, bio - swales, pervious parking stalls, landscaping, and a retention basin will be installed. In addition, a Contech Stormceptor will also be installed to remove any residual pollutants associated with the bio - swales. Refer to Appendices F and/or A 11 -14 for detailed descriptions of each BMP. • Landscape will be designed to contain and infiltrate roof runoff, or direct roof runoff to vegetative swales or buffer areas, where feasible. Calculation are provided in Appendix F. • Where landscaping is proposed in parking areas, incorporate landscape areas into the drainage areas. Calculation are provided in Appendix F. • • A 1,300 gallon retention basin in the east side of the project will be constructed to hold 2,900 cu ft of stormwater runoff. Calculation are provided in Appendix F. A -19 WQMP Preparation/Revision Date: 12/6/08, 7/17/09, 8/25/09, 10/14/2009, 12/12/2010 Water Quality Management Plan (WQMP) Table 3: Treatment Control BMP Selection Matrix (1) Treatment Control BMP Categories Veg. Swale & Infiltration Basins, Wet Ponds Sand Water Hydrodynamic Manufactured Detention Infiltration Filter or Veg. Filter or Quality Separator / Proprietary (3) Basins(4) Trenches, & Porous (6) Media ty (r (g) Pollutant of Concern Strips (3) Wetland Filters Inlets Systems Devices Sediment/Turbidity H/M M H/M H/M H/M L (L for Hu bidity) U Y N ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ Nutrients L M H/M H/M UM L L U YX N X ❑ X ❑ ❑ x x ❑ Organic Compounds U U U U H/M L L U Y N ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ Trash & Debris L M U U H/M M H/M U Y N ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ Oxygen Demanding Substances L M H/M H/M H/M L L U Y N ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ Bacteria & Viruses U U H/M U H/M L L U Y N ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ Oils & Grease H/M M U U H/M M UM U Y N ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ Pesticides (non -soil bound) U U U U U L L U Y N ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ Metals H/M M H H H L L U YX N x ❑ x ❑ ❑ x x ❑ A -21 WQMP Preparation /Revision Date: 12/6/08, 7/17/09, 8/25/09, 10/14/2009, 12/12/2010 . 0 • Water Quality Management Plan (WQMP) • Abbreviations: L: Low removal efficiency H /M: High or medium removal efficiency U: Unknown removal efficiency Notes: (1) Periodic performance assessment and updating of the guidance provided by this table may be necessary. (2) Project applicants should base BMP designs on the Riverside County Stormwater Quality Best Management Practice Design Handbook. However, project applicants may also wish to reference the California Stormwater BMP Handbook — New Development and Redevelopment (www.cabmphandbooks.com). The Handbook contains additional information on BMP operation and maintenance. (3) Includes grass swales, grass strips, wetland vegetation swales, and bioretention. (4) Includes extended /dry detention basins with grass lining and extended /dry detention basins with impervious lining. Effectiveness based upon minimum 36 -48 -hour drawdown time. (5) Projects that will utilize infiltration -based Treatment Control BMPs (e.g., Infiltration Basins, Infiltration Trenches, Porous Pavement, etc.) must include a copy of the property /project soils report as Appendix E to the project- specific WQMP. The selection of a Treatment Control BMP (or BMPs) for the project must specifically consider the effectiveness of the Treatment Control BMP for pollutants identified as causing an impairment of Receiving Waters to which the project will discharge Urban Runoff. (6) Includes permanent pool wet ponds and constructed wetlands. (7) Also known as hydrodynamic devices, baffle boxes, swirl concentrators, or cyclone separators. (8) Includes proprietary stormwater treatment devices as listed in the CASQA Stormwater Best Management Practices Handbooks, other stormwater treatment BMPs not specifically listed in this WQMP, or newly developed /emerging stormwater treatment technologies. • • A -21 WQMP Preparation/Revision Date: 12/6/08, 7/17/09, 8/25/09, 10/14/2009, 12/12/2010 Water Quality Management Plan (WQMP) • V.4 EQUIVALENT TREATMENT CONTROL ALTERNATIVES NOT APPLICABLE V.5 REGIONALLY -BASED TREATMENT CONTROL BMPS NOT APPLICABLE • • A -22 WQMP Preparation /Revision Date: 12/6/08, 7/17/09, 8/25/09, 10/14/2009, 12/12/2010 Water Quality Management Plan (WQMP) • VI. Operation and Maintenance Responsibility for Treatment Control BMPs Operation and maintenance (O &M) requirements for all structural Source Control and Treatment Control BMPs shall be identified in the project - specific WQMP. The project - specific WQMP shall address the following: • Identification of each BMP that requires O &M. • Thorough description of O &M activities, the O &M process, and the handling and placement of any wastes. • BMP start-up dates. • Schedule of the frequency of O &M for each BMP. • Identification of the parties (name, address, and telephone number) responsible for O &M, including a written agreement with the entities responsible for O &M. This agreement can take the form of a Covenant and Agreement recorded by the Project Proponent with the County Recorder, HOA or POA CC &Rs, formation of a maintenance district or assessment district or other instrument sufficient to guarantee perpetual O &M. The preparer of this project - specific WQMP should carefully review Section 4.6 of the WQMP prior to completing this section of the project - specific WQMP. • Self - inspections and record - keeping requirements for BMPs (review local specific requirements regarding self - inspections and /or annual reporting), including identification of responsible parties for • inspection and record- keeping. • Thorough descriptions of water quality monitoring, if required by the Co- Permittee. Instructions: Identifi below all operations and maintenance requirements, as described above, for each structural BMP. Where a public agency is identified as the funding source and responsible party for a Treatment Control BMP, a copy of the written agreement stating the public agency's acceptance of these responsibilities must be provided in Appendix C. (1). Joseph van Haaster will train 10 -12 other men on source control BMPs. These men will ensure that the swales are kept in proper working order. They will ensure that the retention basin is cleaned and/or working properly every month. (2). The only waste expected is general waste that will be placed in the trash receptacle. (3). For the purpose of this WQMP the BMPs will start immediately after the construction of the building. (4).The common areas will be cleaned every week. The parking lot will be cleaned every week. The drainage system will also be cleaned at least once a week. (5). Joseph van Haaster, a Minister in the local congregation will take the lead on ensuring funding and maintaining the BMPs. Mr. van Haaster address is 31640 Calle Girasol, Temecula, CA 92591, (951) 662 -9405. (6).AII inspections and cleaning assignments will be properly documented and kept on -site in accordance with local requirements. • A -24 WQMP Preparation/Revision Date: 12/6/08, 7/17/09, 8/25/09, 10/14/2009, 12/12/2010 Attachment to Section VI. O &M Responsible Responsible Structural Quantity Capital Costs' Annual O&M- Start-Up' Frequenc , _ Funding Party Funding Party Treatment Costs (weekly/ . Dates - for ($) for Long - ' BIVIPs ; ($) monthly / ,- .'. � � installation Term O&M', - w quarterly) . 15 Coto rd,413,0_2 81 i 000"' Prior to YUIoni -hi Temee_L3c... T mecs. \ teaUecs 59,/. F4 scy J './c.ileA �/��ley Occupancy Cc„9iga Coo g eya cw S-1-orni 2 4 S.OUo 00 X500 ,rr Prior to ^ �` ` IU ,, 5c�4 -ar S f Occupancy I"�OI ' J Prior to ,. T&io,SWale. 1,2.15 4IL4 0 "c 4 GO6' � ( � scv P+ Occupancy J n Prior to + l t , � � 1 L,0 <'0 5f (o UD' pO Occupancy L11 g.lij Prior to Occupancy Prior to Occupancy • • • Water Quality Management Plan (WQMP) • VII. Funding A funding source or sources for the O &M of each Treatment Control BMP identified in the project - specific WQMP must be identified. By certifying the project - specific WQMP, the Project applicant is certifying that the funding responsibilities have been addressed and will be transferred to future owners. One example of how to adhere to the requirement to transfer O &M responsibilities is to record the project - specific WQMP against the title to the property. The operation and maintenance for the BMPs will be done by the local congregation of Jehovah's Witnesses. Joseph van Haaster will be the lead minister on this project for the 31640 Calle Girasol Temecula, CA 92591 project. When the operating committee feels that something major is needed in connection with the Kingdom Hall's operation or maintenance, the committee refers the matter to the elders for direction. If it is determined that extensive maintenance or renovation will be necessary or that help will be needed from outside the congregation(s) meeting at the Kingdom Hall, the elders will contact the Regional Building Committee. If a major expense is involved, it will be necessary to obtain accurate cost estimates and prepare a resolution for congregation approval. • • A -25 WQMP Preparation/Revision Date: 12/6/08, 7/17/09, 8/25/09, 10/14/2009, 12/12/2010 Attachment to Section VII. • FUNDING CERTIFICATION A source of funding is required for all site design, source control, and treatment BMPs. For this project, the owner will fund the installation, and operation and maintenance of all BMPs set forth in this WQMP until the project is transferred to a new owner. Each owner shall record this WQMP with the County of Riverside as an attachment to the title of the property in order to transfer the O &M responsibilities to each new owner. Where the owner requires a lessee or other party to install, and operate and maintain the BMPs, the owner will maintain ultimate funding responsibilities, and will, upon default of the lessee or other party to fulfill these responsibilities, shall cause the same to be performed at the owner's expense. Nothing in this WQMP shall prevent the owner from pursuing cost recovery from any lessee or other party responsible for the BMPs, or from pursuing remedies for the default of responsibilities as provided by the lease contract and law. `1 The owner for (project name and location) , , 1J . 31 O ts. rrt will be responsible for the installation, and operation and maintenance of all BMPs until such time that the site is transferred to a new owner. • / - 9 - •r Owner or Co i Official's Signature Date 1o5z'f V!tri ' ARS1 Cc,4G(LF, � i LO b L Owner or Company Official's Printed Name Owner or Company Official's Title/Position Kingdom Hall of Jehovah's Witnesses C/O Joseph van Haaster, Minister 31640 Calle Girasol Temecula, CA 92591 (951)662 -9402 • Water Quality Management Plan (WQMP) • Appendix A Conditions of Approval Planning Commission Resolution Dated • • WQMP Preparation /Revision Date: 12/6/08, 7/17/09, 8/25/09, 10/14/2009, 12/12/2010 A ct- ny,TEAte FILE CCFy ek go ,.. • City of Temecula r Community Development 4 o. ° r ° �d Planning Division o 1989 ds 43200 Business Park Drive • Temecula, CA 92590 , %Ns• NE0(rse P.O. Box 9033 • Temecula, CA 92589 -9033 FAX (951) 694 -6477 September 13, 2010 Mr. Joseph Van Haaster 41221 Via Anita Temecula, CA 92592 SUBJECT: Planning Application No. PA09 -0061, a Development Plan with Conditional Use Permit to construct and operate a 8,264 square foot Religious Institution (Kingdom Hall for the Jehovah Witness Congregation) on 2.32 acres at 31640 Calle Girasol - Dear Mr. Palma: • On September 9, 2010 the City of Temecula Director of Planning and Redevelopment approved the above referenced project subject to the enclosed Final Conditions of Approval. Anyone dissatisfied with this decision or the Conditions of Approval may appeal it within 15 calendar days from the date of approval. Caution should be exercised in making any expenditures or commitments based upon this approval until the expiration of the appeal period and disposition of any appeals, which may be filed. This approval is effective until September 9, 2012 unless extended in accordance with the Development Code. Written request for a time extension must be submitted to the City of Temecula a minimum of 30 days prior to the expiration date. It has been a pleasure working with you during the entitlement process. If you have any questions regarding this subject or approval, please contact me at (951) 506 -5115 or by email at eric.jones @cityoftemecula.org. Sincerely, Eric Jones Assistant Planner • Enclosures: Final Conditions of Approval • G. \PLANNING \2009 \PA09 -0061 Jehovah Witness DP CUR \Planning \Hearing\APPROVAL LTR update.doc • • EXHIBIT A CITY OF TEMECULA FINAL CONDITIONS OF APPROVAL Planning Application No.: PA09 - 0061 Project Description: A Development Plan with a Conditional Use Permit to construct and operate a 8,264 square foot religious facility on 2.32 acres within VL zoning, generally located on the northeast corner of Calle Girasol and Aussie Avenue at 31640 Calle Girasol Assessor's Parcel No.: 957 - 120 -019 MSHCP Category: Commercial DIF Category: Exempt (Non - Profit 501c3) TUMF Category: Exempt (House of Worship — Section 15.08.040.F.9) Approval Date: September 9, 2010 • Expiration Date: September 9, 2012 PLANNING DEPARTMENT Within 48 Hours of the Approval of This Project PL -1. The applicant/developer shall deliver to the Planning Department a cashier's check or money order made payable to the County Clerk in the amount of Two Thousand Seventy -Four Dollars and Twenty -Five Cents ($2,074.25) which includes the Two Thousand Ten Dollar and Twenty -Five Cent ($2,010.25) fee, required by Fish and Game Code Section 711.4(d)(3) plus the Sixty -Four Dollar ($64.00) County administrative fee, to enable the City to file the Notice of Determination for the Mitigated or Negative Declaration required under Public Resources Code Section 21152 and California Code of Regulations Section 15075. If within said 48 -hour period the applicant/ developer has not delivered to the Planning Department the check as required above, the approval for the project granted shall be void due to failure of condition [Fish and Game Code Section 711.4(c)]. General Requirements PL -2. The applicant and owner of the real property subject to this condition shall hereby agree to indemnify, protect, hold harmless, and defend the City with Legal Counsel of the City's own selection from any and all claims, actions, awards, judgments, or proceedings against the City to attack, set aside, annul, or seek monetary damages • resulting, directly or indirectly, from any action in furtherance of and the approval of the City, or any agency or instrumentality thereof, advisory agency, appeal board or G:\ PLANNING\2009\PA09 -0061 Jehovah Witness DP CUP \Planning \Hearing \COA document.doc . Planning Application. The City shall be deemed for purposes of this condition, to include any agency or instrumentality thereof, or any of its elected or appointed officials, officers, employees, consultants, contractors, legal counsel, and agents. City shall promptly notify both the applicant and landowner of any claim, action, or proceeding to which this condition is applicable and shall further cooperate fully in the defense of the action. The City reserves the right to take any and all action the City deems to be in the best interest of the City and its citizens in regards to such defense. PL -3. The permittee shall obtain City approval for any modifications or revisions to the approval of this project. PL -4. This approval shall be used within two years of the approval date; otherwise, it shall become null and void. By use is meant the beginning of substantial construction contemplated by this approval within the two year period, which is thereafter diligently pursued to completion, or the beginning of substantial utilization contemplated by this approval. PL -5. The Planning Director may, upon an application being filed prior to expiration, and for good cause, grant a time extension of up to 3 one -year extensions of time, one year at a time. PL -6. The project and all subsequent projects within this site shall comply with all mitigation measures identified within the completed Mitigated Negative Declaration. • PL -7. A separate building permit shall be required for all signage. PL -8. The development of the premises shall substantially conform to the approved site plan and elevations contained on file with the Planning Department. PL -9. Landscaping installed for the project shall be continuously maintained to the reasonable satisfaction of the Planning Director. If it is determined that the landscaping is not being maintained, the Planning Director shall have the authority to require the property owner to bring the landscaping into conformance with the approved landscape plan. The continued maintenance of all landscaped areas shall be the responsibility of the developer or any successors in interest. PL -10. Other than stormwater, it is illegal to allow liquids, gels, powders, sediment, fertilizers, landscape debris, and waste from entering the storm drain system or from leaving the property. Spills and leaks must be cleaned up immediately. Do not wash, maintain, or repair vehicles onsite. Do not hose down parking areas, sidewalks, alleys, or gutters. Ensure that all materials and products stored outside are protected from rain. Ensure all trash bins are covered at all times. PL -11. The applicant shall paint a three -foot by three -foot section of the building for Planning Department inspection, prior to commencing painting of the building. PL -12. The applicant shall submit to the Planning Department for permanent filing two 8" X 10" glossy photographic color prints of the approved color and materials board and the colored architectural elevations. All labels on the color and materials board and • Elevations shall be readable on the photographic prints. PL -13. The Conditions of Approval specified in this resolution, to the extent specific items, G: \PLANNING\2009\PA09 -0061 Jehovah Witness DP CUP \Planning \Healing \COA document.doc • materials, equipment, techniques, finishes or similar matters are specified, shall be deemed satisfied by staff's prior approval of the use or utilization of an item, material, equipment, finish or technique that City staff determines to be the substantial equivalent of that required by the Conditions of Approval. Staff may elect to reject the request to substitute, in which case the real party in interest may appeal, after payment of the regular cost of an appeal, the decision to the Planning Commission for its decision. MATERIAL COLOR Primary Stucco ICI Paints — 4428 Aged Stucco Exterior Shutters ICI Paints — 3212 Burnt Umber Entry Doors, Window Trim, Accent ICI Paints — 4405 Thatched Cottage Stucco Stone Work Chardonnay PF -8104 Curbside Walkway Natural Texture Mat Stamped Concrete Dryvit Terraneo Serengeti No. 202 Roof Tile Hanson Roof Tile Weathered Shake Oakwood Blend, No. WS -546 PL -14. Trash enclosures shall be provided to house all trash receptacles utilized on the site. These shall be clearly labeled on site plan. PL -15. The applicant shall comply with their Statement of Operations submitted August 23, 2010, on file with the Planning Department, unless superseded by these Conditions of • Approval. PL -16. This Conditional Use Permit may be revoked pursuant to Section 17.03.080 of the City's Development Code. PL -17. The City, its Planning Director, Planning Commission, and City Council retain and reserve the right and jurisdiction to review and modify this Conditional Use Permit (including the Conditions of Approval) based on changed circumstances. Changed circumstances include, but are not limited to, the modification of business, a change in scope, emphasis, size of nature of the business, and the expansion, alteration, reconfiguration or change of use. The reservation of right to review any Conditional Use Permit granted or approved or conditionally approved hereunder by the City, its Planning Director, Planning Commission and City Council is in addition to, and not in- lieu of, the right of the City, its Planning Director, Planning Commission, and City Council to review, revoke or modify any Conditional Use Permit approved or conditionally approved hereunder for any violations of the conditions imposed on such Conditional Use Permit or for the maintenance of any nuisance condition or other code violation thereon. PL -18. The developer shall contact the City's franchised solid waste hauler for disposal of construction and demolition debris. Only the City's franchisee may haul demolition and construction debris. PL -19. The applicant shall comply with the Public Art Ordinance. • PL -20. All parkways, including within the right -of -way, entryway median, landscaping, walls, fencing, recreational facilities and on -site lighting shall be maintained by the property owner or maintenance association. G:\PLANNING\2009WA09 -0061 Jehovah Witness DP CUP \Planning \Hearing \COA document.doc • PL -21. The trash enclosures shall be large enough to accommodate a recycling bin, as well as regular solid waste containers. Prior to Issuance of Grading Permit(s) PL -22. Provide the Planning Department with a copy of the underground water plans and electrical plans for verification of proper placement of transformer(s) and double detector check prior to final agreement with the utility companies. PL -23. Double detector check valves shall be installed internal to the project site at locations - not visible from the public right -of -way, subject to review and approval by the Planning Director. PL -24. The following shall be included in the Notes Section of the Grading Plan: "If at any time during excavation /construction of the site, archaeological /cultural resources, or any artifacts or other objects which reasonably appears to be evidence of cultural or archaeological resource are discovered, the property owner shall immediately advise the City of such and the City shall cause all further excavation or other disturbance of the affected area to immediately cease. The Planning Director at his /her sole discretion may require the property owner to deposit a sum of money it deems reasonably necessary to allow the City to consult and /or authorize an independent, fully qualified specialist to inspect the site at no cost to the City, in order to assess the significance of the find. Upon determining that the discovery is not an archaeological/ cultural resource, the Planning Director shall notify the property owner of such determination and shall • authorize the resumption of work. Upon determining that the discovery is an archaeological /cultural resource, the Planning Director shall notify the property owner that no further excavation or development may take place until a mitigation plan or other corrective measures have been approved by the Planning Director." PL -25- The developer is required to enter into a Cultural Resources Treatment Agreement with the Pechanga Tribe. This Agreement will address the treatment and disposition of cultural resources and human remains that may be impacted as a result of the development of the project, as well as provisions for tribal monitors. PL -26. If cultural resources are discovered during the project construction (inadvertent discoveries), all work in the area of the find shall cease, and a qualified archaeologist and representatives of the Pechanga Tribe shall be retained by the project sponsor to investigate the find, and make recommendations as to treatment and mitigation. PL -27. A qualified archaeological monitor will be present and will have the authority to stop and redirect grading activities, in consultation with the Pechanga Tribe and their designated monitors, to evaluate the significance of any archaeological resources discovered on the property. • G:\PLANNING\2009 \PA09 -0061 Jehovah Witness DP CUP \Planning Wearing \COA document.doc • PL -28. Tribal monitors from the Pechanga Tribe shall be allowed to monitor all grading, excavation and groundbreaking activities, including all archaeological surveys, testing, and studies, to be compensated by the developer. PL -29. The landowner agrees to relinquish ownership of all cultural resources, including all archaeological artifacts that are found on the project area, to the Pechanga Tribe for proper treatment and disposition. PL -30. All sacred sites are to be avoided and preserved. PL -31. A 30 -day preconstruction survey, in accordance with MSHCP guidelines and survey protocol, shall be conducted prior to ground disturbance. The results of the 30 -day preconstruction survey shall be submitted to the Planning Department prior to scheduling the pre - grading meeting with Public Works. PL -32. The following shall be included in the Notes Section of the Grading Plan: "No grubbing /clearing of the site shall occur prior to scheduling the pre - grading meeting with Public Works. All project sites containing suitable habitat for burrowing owls, whether owls were found or not, require a 30 -day preconstruction survey that shall be conducted within 30 days prior to ground disturbance to avoid direct take of burrowing owls. If the results of the survey indicate that no burrowing owls are present on -site, then the project may move forward with grading, upon Planning Department approval. If burrowing owls are found to be present or nesting on -site during the preconstruction • survey, then the following recommendations must be adhered to: Exclusion and relocation activities may not occur during the breeding season, which is defined as March 1 through August 31, with the following exception: From March 1 through March 15 and from August 1 through August 31 exclusion and relocation activities may take place if it is proven to the City and appropriate regulatory agencies (if any) that egg laying or chick rearing is not taking place. This determination must be made by a qualified biologist." PL -33. A copy of the Rough Grading Plans shall be submitted and approved by the Planning Department. Prior to Issuance of Building Permit(s) PL -34. The applicant shall submit a photometric plan, including the parking lot to the Planning Department, which meets the requirements of the Development Code and the Palomar Lighting Ordinance. The parking lot light standards shall be placed in such a way as to not adversely impact the growth potential of the parking lot trees. PL -35. All downspouts shall be internalized. PL -36. Four copies of Construction Landscaping and Irrigation Plans shall be reviewed and approved by the Planning Department. These plans shall conform to the approved conceptual landscape plan, or as amended by these conditions. The location, number, height and spread, water usage or KC value, genus, species, and container size of the plants shall be shown. The plans shall be consistent with the Water Efficient Ordinance • and Water Storage Contingency Plan per the Rancho California Water District. The plans shall be accompanied by the appropriate filing fee (per the City of Temecula Fee Schedule at time of submittal) and one copy of the approved Grading Plan. G: \PLANNING12009 \PA09 -0061 Jehovah Witness DP CUP \PlanningWearing \GOA document.doc • PL -37. The Landscaping and Irrigation Plans shall provide a minimum five -foot wide planter to be installed at the perimeter of all parking areas. Curbs, walkways, etc. are not to infringe on this area. PL -38. The Landscaping and Irrigation Plans shall include a note stating that "Three landscape site inspections are required. The first inspection will verify that the irrigation mainline is capable of being pressurized to 150 psi for a minimum period of two hours without loss of pressure, which will require inspection of irrigation installation of open trenches. The second inspection will verify that all irrigation systems have head -to -head coverage, and to verify that all plantings have been installed consistent with the approved construction - landscape plans. The third inspection will verify proper landscape maintenance for release of the one year landscape maintenance bond." The applicant/owner shall contact the Planning Department to schedule inspections. PL -39. The Landscaping and Irrigation Plans shall include a note on the plans stating that "The contractor shall provide two copies of an agronomic soils report at the first irrigation inspection." PL -40. The Landscaping and Irrigation Plans shall include water usage calculations per Chapter 17.32 of the Development Code (Water Efficient Ordinance), the total cost estimate of plantings and irrigation (in accordance with approved plan). Applicant shall use evapotranspiration (ETo) factor of 0.70 for calculating the maximum allowable water budget. • PL -41. A landscape maintenance program shall be submitted for approval, which details the proper maintenance of all proposed plant materials to assure proper growth and landscape development for the long -term esthetics of the property. The approved maintenance program shall be provided to the landscape maintenance contractor who shall be responsible to carry out the detailed program. PL -42. Specifications of the landscape maintenance program shall indicate that "Three landscape site inspections are required. The first inspection will verify that the irrigation mainline is capable of being pressurized to 150 psi for a minimum period of two hours without loss of pressure, which will require inspection of irrigation installation of open trenches. The second inspection will verify that all irrigation systems have head -to -head coverage, and to verify that all plantings have been installed consistent with the approved construction landscape plans. The third inspection will verify proper landscape maintenance for release of the one year landscape maintenance bond." The applicant/owner shall contact the Planning Department to schedule inspections. PL -43. Precise Grading Plans shall be consistent with the approved rough grading plans including all structural setback measurements. PL -44. All WQMP treatment devices, including design details, shall be shown on the construction landscape plans. If revisions are made to the WQMP design that result in any changes to the conceptual landscape plans after entitlement, the revisions will be shown on the construction landscape plans, subject to the approval of the Planning Director. • G: \PLANNING\2009 \PA09 -0061 Jehovah Witness DP CUP \Planning \Hearing \GOA document.doc • PL -45. All utilities shall be screened from public view. Landscape construction drawings shall show and label all utilities and provide appropriate screening. Provide a three -foot clear zone around fire check detectors as required by the Fire Department before starting the screen. Group utilities together in order to reduce intrusion. Screening of utilities is not to look like an after - thought. Plan planting beds and design around utilities. Locate all light poles on plans and insure that there are no conflicts with trees. PL -46. Building Construction Plans shall include detailed outdoor areas (including but not limited to trellises, decorative furniture, fountains, hardscape (choose or add to as appropriate) to match the style of the building subject to the approval of the Planning Director. PL -47. The developer shall provide the Planning Department verification of arrangements made with the City's franchise solid waste hauler for disposal of construction and demolition debris. PL -48. The applicant shall provide staff with a copy of the 501c3 documents associated with the project for review. Development Impact Fees will be applied to the project if these documents are not provided to staff. Prior to Release of Power, Building Occupancy or Any Use Allowed by This Permit PL -49. An applicant shall submit a letter of substantial conformance, subject to field verification • by the Planning Director or his /her designee. Said letter of substantial conformance shall be prepared by the project designer and shall indicate that all plant materials and irrigation system components have been installed in accordance with the approved final landscape and irrigation plans. If a certificate of use and occupancy is not required for the project, such letter of substantial conformance shall be submitted prior to scheduling for the final inspection. PL -50. The applicant shall be required to screen all loading areas and roof mounted mechanical equipment from'view of the adjacent residences and public right -of -ways. If upon final inspection it is determined that any mechanical equipment, roof equipment or backs of building parapet walls are visible from any portion of the public right -of -way adjacent to the project site, the developer shall provide screening by constructing a sloping tile covered mansard roof element or other screening reviewed and approved by the Planning Director. PL -51. All required landscape planting and irrigation shall have been installed consistent with the approved construction plans and shall be in a condition acceptable to the Planning Director. The plants shall be healthy and free of weeds, disease, or pests. The irrigation system shall be properly constructed and in good working order. PL -52. Performance securities, in amounts to be determined by the Planning Director, to guarantee the maintenance of the plantings in accordance with the approved construction landscape and irrigation plan shall be filed with the Planning Department for a period of one year from final Certificate of Occupancy. After that year, if the landscaping and irrigation system have been maintained in a condition satisfactory to • the Planning Director, the bond shall be released upon request by the applicant. G:\ PLANNING\20091PA09 -0061 Jehovah Witness DP CUP \Planning \Hearing \COA document.doc • PL-53. Each parking space reserved for the handicapped shall be identified by a permanentiy affixed reflectorized sign constructed of porcelain on steel, beaded text or equal, dispiaying the International Symbol of Accessibility. The sign shall not be smailer than 70 square inches in area and shall be centered at the interior end of the parking space at a minimum height of 80 inches from the bottom of the sign to the parking space finished grade, or centered at a minimum height of 36 inches from the parking space finished grade, ground, or sidewalk. A sign shall also be posted in a conspicuous place, at each entrance to the off-street parking facility, not less than 17 inches by 22 inches, clearly and conspicuously stating the following: "Unauthorized vehicles parked in designated accessible spaces not displaying distinguishing placards or license plates issued for persons with disabilities may be towed away at owner's expense. Towed vehicles may be reclaimed by telephoning (951) 696-3000." PL-54. In addition to the above requirements, the surface of each parking place shall have a surFace identification sign duplicating the Symbol of Accessibility in blue paint of at least three square feet in size. PL-55. All site improvements including but not limited to parking areas and striping shall be installed. PL-56. Alf of �he foregoing conditions shall be complied with prior to occupancy or any use • allowed by this permit. OUTSIDE AGENCIES PL-57. Flood protection shall be provided in accordance with the Riverside County Flood Control Districfs transmittal dated March 3, 2009, a copy of which is attached. The fee is made payable to the Riverside County Flood Control Water District by either a cashier's check or money order, prior to the issuance of a grading permit (unless deferred to a later date by the District), based upon the prevailing area drainage pian fee. PL-58. The applicant shall comply with the recommendations set forth in the County of Riverside Department of Environmental Health's transmittal dated February 9, 2009, a copy of which is attached. PL-59. The applicant shall comply with the recommendations set forth by the Eastern Municipal �Nater District. PL-60. The applicant shall comply with the recommendations set forth in the Rancho California Water DistricPs transmittal dated March 10, 2009, a copy of which is attached. BUILDING AND SAFETY DEPARTMENT General Conditions/Information • B-1. Obtain street addressing for all proposed buildings. G\PLANNING�2009�PA09-0061 Jehovah Wiiness DP CUP\PlanningWearing\COA documenLdoc • B -2. All design components shall comply with applicable provisions of the 2007 edition of the California Building, Plumbing, Mechanical and Electrical Codes; California Administrative Code, Title 24 Energy Code, California Title 24 Disabled Access Regulations, and the Temecula Municipal Code. B -3. Provide details of all applicable disabled access provisions and building setbacks on plans. 8 -4. Provide disabled access from the public way to the main entrance of the building. B -5. Provide van accessible parking located as close as possible to the main entry. B -6. Show path of accessibility from parking to furthest point of improvement. B -7. A receipt or clearance letter from the Temecula Valley School District shall be submitted to the Building and Safety Department to ensure the payment or exemption from School Mitigation Fees. B -8. Obtain all building plans and permit approvals prior to commencement of any construction work. B -9. Commercial and industrial project trash enclosures, patio covers, light standards, and any block walls will require separate approvals and permits. • B -10. Signage shall be posted conspicuously at the entrance to the project that indicates the hours of construction, as allowed by the City of Temecula Ordinance Number 94 -21, specifically Section G(1) of Riverside County Ordinance Number 457.73, for any site within one - quarter mile of an occupied residence. The permitted hours of construction are Monday through Friday from 6:30 a.m. to 6:30 p.m., and Saturday from 7:00 a.m. to 6:30 p.m. No work is permitted on Sundays or Government Holidays. 13-11. The City of Temecula adopted an ordinance on March 31, 2003 to collect fees for a Riverside County area wide Transportation Uniform Mitigation Fee (TUMF). This project is subject to payment of these fees at the time of building permit issuance. The fees are subject to the provisions of Ordinance 03 -01 and the fee schedule in effect at the time of building permit issuance. B -12. Provide an approved automatic fire sprinkler system. At Plan Review Submittal B -13. Provide a complete exterior site lighting plan showing compliance with Ordinance Number 655 for the regulation of light pollution. All streetlights and other outdoor lighting shall be shown on electrical plans submitted to the Department of Building and Safety. Any outside lighting shall be hooded and aimed not to shine directly upon adjoining property or public rights -of -way. B -14. Provide electrical plan including load calculations and panel schedule, plumbing • schematic and mechanical plan applicable to scope of work for plan review. 13-15. Provide a Sound Transmission Control Study in accordance with the provisions of the Section 1207, of the 2007 edition of the California Building Code. G \PLANNING\2009 \PA09 -0061 Jehovah Witness DP CUP \Planning \Hearing \COA document.doc • B -16. Provide number and type of restroom fixtures, to be in accordance with the provisions of the 2007 edition of the California Plumbing Code. B -17. Provide precise grading plan to verify accessibility for persons with disabilities. B-18. Provide truss calculations that have been stamped by the engineer of record of the building and the truss manufacturer engineer. Prior to Issuance of Building Permit(s) B -19. Provide appropriate stamp of a registered professional with original signature on plans. Prior to Beginning of Construction B -20. A pre- construction meeting is required with the building inspector prior to the start of the building construction. FIRE PREVENTION General Requirements F -1. Final fire and life safety conditions will be addressed when building plans are reviewed by the Fire Prevention Bureau. These conditions will be based on occupancy, use, the • California Building Code (CBC), California Fire Code (CFC), and related codes which are in force at the time of building plan submittal. F -2. The Fire Prevention Bureau is required to set a minimum fire flow for the remodel or construction of all commercial buildings per CFC Appendix B. The developer shall provide for this project, a water system capable of delivering 4,000 GPM at 20 PSI residual operating pressure for a 4 -hour duration. The Fire Flow as given above has taken into account all information as provided (CFC Appendix B and Temecula City Ordinance 15.16.020, Section R). F -3. The Fire Prevention Bureau is required to set minimum fire hydrant distances per CFC Appendix C. A combination of on -site and off -site (6" x 4" x 2 -2 1/2" outlets) on a looped system shall be located on fire access roads and adjacent to public streets. Hydrants shall be spaced at 350 feet apart, at each intersection and shall be located no more than 210 feet from any point on the street or Fire Department access road(s) frontage to a hydrant. The required fire flow shall be available from any adjacent hydrant(s) in the system. The upgrade of existing fire hydrants may be required (CFC Appendix C and Temecula City Ordinance 15.16.020, Section R). F -4. As required by the California Fire Code, when any portion of the facility is in excess of 150 feet from a water supply on a public street, as measured by an approved route around the exterior of the facility, on -site fire hydrants and mains capable of supplying the required fire flow shall be provided. For this project on site fire hydrants are required (CFC Chapter 5, Section 508.5). • F -5. If construction is phased, each phase shall provide approved access and fire protection prior to any building construction (CFC Chapter 5, Section 503.4). Prior to Grading G:PLANNING\2009 \PA09 -0061 Jehovah Witness DP CUP \Planning \Hearing \COA document.doc • F -6. Maximum cul -de -sac length shall not exceed-1320 feet. Minimum turning radius on any cul -de -sac shall be forty -five (45) feet (CFC Chapter 5, Section 503.2.4 and 503.2.5 along with the City Ordinance 15.16.020 Section E). F -7. Fire apparatus access roads shall be designed and maintained to support the imposed loads of fire apparatus and shall be with a surface so as to provide all- weather driving capabilities. Access roads shall be 80,000 lbs. GVW with a minimum of AC thickness of .25 feet. In accordance with Section 1410.1, prior to building construction all locations _ where structures are to be built shall have fire apparatus access roads. When temporary fire apparatus access roads are approved by the chief and provided for use until permanent fire access roads are installed; the fire apparatus roads shall be an all weather surface for an 80,000 lbs GVW (CFC Chapter 5, Section 503.2.3 and City Ordinance 15.16.020 Section E). F -8. Fire Department vehicle access roads shall have an unobstructed width of not less than twenty -four (24) feet and an unobstructed vertical clearance of not less than thirteen (13) feet six (6) inches (CFC Chapter 5, Section 503.2, 503.4 and City Ordinance 15.16.020 Section E). F -9. The gradient for fire apparatus access roads shall not exceed fifteen (15) percent (CFC Chapter 5, Section 503.2.7 and City Ordinance 15.16.020 Section E). F -10. Prior to building construction, dead end road ways and streets in excess of one hundred • and fifty (150) feet which have not been completed shall have a turnaround capable of accommodating fire apparatus (CFC Chapter 5, Section 503.2.5 and City Ordinance 15.16.020 Section E). Prior to Building F -11. Prior to issuance of building permits, the developer shall furnish one copy of the water system plans to the Fire Prevention Bureau for approval prior to installation for all private water systems pertaining to the fire service loop. Plans shall be signed by a registered civil engineer; contain a Fire Prevention Bureau approval signature block; and conform to hydrant type, location, spacing and minimum fire flow standards. Hydraulic calculations will be required with the underground submittal to ensure fire flow requirements are being met for the on site hydrants. The plans must be submitted and approved prior to building permit being issued (CFC Chapter 14, Section 1412 and Chapter 5, Section 501.3). F -12. Prior to issuance of building permit (ire sprinkler plans shall be submitted to the Fire Prevention Bureau for approval. Three sets of sprinkler plans must be submitted by the installing contractor to the Fire Prevention Bureau. These plans must be submitted prior to the issuance of building permit. F -13. Prior to issuance of building permit fire alarm plans shall be submitted to the Fire Prevention Bureau for approval. Three sets of alarm plans must be submitted by the installing contractor to the Fire Prevention Bureau. The fire alarm system is required to • have a dedicated circuit from the house panel. G: \PLANNING\2009 \PA09 -0061 Jehovah Witness DP CUP \ Planning \Hearing \COA documenldoc • F -14. Prior to issuance of building permits, fuel modification plans shall be submitted to the Fire Prevention Bureau for review and approval for all open space areas adjacent to the wildland- vegetation interface (CFC Chapter 47). F -15. Prior to issuance of building permits, plans for structural protection from vegetation fires shall be submitted to the Fire Prevention Bureau for review and approval. The measures shall include, but are not limited to, enclosing eaves, noncombustible barriers (cement or block walls), and fuel modification zones (CFC Chapter 47). Prior to Occupancy F -16. Hydrant locations shall be identified by the installation of reflective markers (blue dots) (City Ordinance 15.16.020 Section E). F -17. New and existing buildings shall have approved address numbers, building numbers or approved building identification placed in a position that is plainly legible and visible from the street or road fronting the property. These numbers shall contrast with their background. Commercial, multi - family residential and industrial buildings shall have a minimum of twelve (12) inch numbers with suite numbers being a minimum of six (6) inches in size. All suites shall have a minimum of six (6) inch high letters and /or numbers on both the front and rear doors. Single family residences and multi - family residential units shall have four (4) inch letters and /or numbers, as approved by the Fire Prevention Bureau (CFC Chapter 5, Section 505.1 and City Ordinance 15.16.020 Section E) • F -18. Prior to issuance of a Certificate of Occupancy or building final, a directory display monument sign shall be required for apartment, condominium, townhouse or mobile home parks. Each complex shall have an illuminated diagrammatic layout of the complex which indicates the name of the complex, all streets, building identification, unit numbers, and fire hydrant locations within the complex. Location of the sign and design specifications shall be submitted to and be approved by the Fire Prevention Bureau prior to installation. F -19. Prior to the issuance of a Certificate of Occupancy or building final, a "Knox -Box" shall be provided. The Knox -Box shall be installed a minimum of six (6) feet in height and be located to the right side of the fire riser sprinkler room (CFC Chapter 5, Section 506). F -20. All manual and electronic gates on required Fire Department access roads or gates obstructing Fire Department building access shall be provided with the Knox Rapid entry system for emergency access by fire fighting personnel (CFC Chapter 5, Section 506). F -21. Prior to final inspection of any building, the applicant shall prepare and submit to the Fire Department for approval, a site plan designating Fire Lanes with appropriate lane painting and or signs (CFC Chapter 5, Section 503.3). F -22. Prior to the issuance of a Certificate of Occupancy, building final or occupancy, buildings housing high -piled combustible stock shall comply with the provisions of • California Fire Code Chapter 23 and all applicable National Fire Protection Association standards. The storage of high -piled combustible stock may require structural design considerations or modifications to the building. Fire protection and life safety features may include some or all of the following: an automatic fire sprinkler system(s) designed G: \PLANNING\20091PA09 -0061 Jehovah Witness DP CUP1PIanning\Hearing \GOA document.doc • for a specific commodity class and storage arrangement, hose stations, alarm systems, smoke vents, draft curtains, Fire Department access doors and Fire department access roads (CFC Chapter 23 and City Ordinance 15.16.020 Section J). F -23. Prior to the building final, speculative buildings capable of housing high -piled combustible stock, shall be designed with the following fire protection and life safety features: an automatic fire sprinkler system(s) designed for a specific commodity class and storage arrangement, hose stations, alarm systems, smoke vents, draft curtains, Fire Department access doors and Fire department access roads. Buildings housing high -piled combustible stock shall comply with the provisions California Fire Code Article 81 and all applicable National Fire Protection Association standards (CFC Chapter 23 and City Ordinance 15.16.020 Section J). F -24. Prior to the issuance of a Certificate of Occupancy or building final, the developer /applicant shall be responsible for obtaining underground and /or aboveground tank permits for the storage of combustible liquids, flammable liquids or any other hazardous materials from both the County Health department and Fire Prevention Bureau (CFC Chapter 34 and City Ordinance 15.16.020). F -25. The applicant shall submit for review and approval by the City Fire Department a Hazardous Material Inventory Statement and Fire Department Technical Report. A full hazardous materials inventory report and color coded floor plan is required for any building storing or using hazardous materials (CFC Chapter 28 though 44, Appendix Chapter 1 and City Ordinance 15.16.020). • F -26. Prior to issuance of a Certificate of Occupancy or building final a simple plot plan and a simple floor plan, each as an electronic file of the .DWG format must be submitted to the Fire Prevention Bureau. Alternative file formats may be acceptable, contact fire prevention for approval. F -27. If there are changes to underlying maps then prior to map recordation the applicant shall submit to the Fire Prevention Bureau a georectified (pursuant to Riverside County standards) digital version of the map including parcel and street centerline information. The electronic file will be provided in a ESRI Arclnfo /ArcView compatible format and projected in a State Plane NAD 83 (California Zone VI) coordinate system. The Bureau must accept the data as to completeness, accuracy and format prior to satisfaction of this condition. POLICE DEPARTMENT Genera! Requirements PD -1. Applicant shall ensure all landscaping surrounding all buildings are kept at a height of no more than three feet or below the ground floor window sills. Plants, hedges and shrubbery shall be defensible plants to deter would -be intruders from breaking into the buildings utilizing lower level windows. PD -2. Applicant shall ensure all trees surrounding all building rooftops be kept at a distance to • deter roof accessibility by "would -be burglars." Since trees also act as a natural ladder, the branches must be pruned to have a six -foot clearance from the buildings. PD -3. Berms shall not exceed three feet in height. G:\PLANNING\2009 \PA09 -0061 Jehovah Witness DP CUP \Planning\Headng \COA document.doc • PD -4. All parking lot lighting surrounding the complex shall be energy saving and minimized after hours of darkness and in compliance with the Title 24, Part 6, of the California Code of Regulations. PD -5. All exterior lighting to be in compliance with Riverside County Mount Palomar Lighting Ordinance 655, low pressure sodium lighting preferred. PD -6. All exterior doors to have their own vandal resistant fixtures installed above each door. The doors shall be illuminated with a minimum one -foot candle illumination at ground level, evenly dispersed. PD -7. All exterior night lighting shall be wall mount light fixtures to provide sufficient lighting during hours of darkness. PD -8. Applicant shall comply with the Governor's order to address the power crisis. This order became effective March 18, 2001 calling for a substantial reduction from businesses to cut usage during non - business hours. The order, in part, states, "All California retail establishments, including, but not limited to, shopping centers, auto malls and dealerships, shall substantially reduce maximum outdoor lighting capability during non- business hours except as necessary for the health and safety of the public, employees or property." Failure to comply with this order following a warning by law enforcement officials shall be punishable as a misdemeanor with a fine not to exceed $1000 in accordance with Title 24, Part 6, of the California Code of Regulations • PD -9. All doors, windows, locking mechanisms, hinges, and other miscellaneous hardware shall be commercial or institution grade. PD -10. Any graffiti painted or marked upon the buildings must be removed or painted over within 24 hours of being discovered. Report all such crimes to the Temecula Police 24- hour dispatch Center at (951) 696 -HELP. PD -11. Upon completion of construction, the buildings shall have a monitored alarm system installed and monitored 24 hours a day by a designated private alarm company to notify the Temecula Police Department of any intrusion. All multi- tenant offices /suites /businesses located within a specific building shall have their own alarm system. This condition is not applicable if the business is opened 24/7. PD -12. Any public telephones located on the exterior of the buildings shall be placed in a well - lit, highly visible area, and installed with a "call -out only" feature to deter loitering. This feature is not required for public telephones installed within the interior of the buildings. PD -13. All disabled parking stalls on the premises shall be marked in accordance with Section 22511.8 of the California Vehicle Code. PD -14. Employee training regarding retail /credit card theft, citizens' arrest procedures, personal safety, business security, shoplifting or any other related crime prevention training procedures is also available through the Crime Prevention Unit. • • G: \PLANNING120091PA09 -0061 Jehovah Witness DP CUP \Planning \Hearing \COA document.doc • PD-1 5. The Temecula Police Department affords all retailers the opportunity to participate in the "Inkless Ink Program." At a minimal cost for inkless inkpads, retailers can take a thumbprint of every customer using a personal check to pay for services. A decal is also posted on the front entry of the business advising customers of the "Inkless Ink Program" in use. If the business becomes a victim of check fraud, the Police Department will be able to track the suspect with the thumbprint. PD -16. Crime prevention through environmental design as developed by the National Crime Prevention Institute (NCPI) supports the concept that "the proper design and effective use of the built environment can lead to a reduction in the fear and incidence of crime - and an improvement in the quality of life." The nine primary strategies that support this concept are included as conditions below: a. Provide clear border definition of controlled space. Examples of border definition may include fences, shrubbery or signs in exterior areas. Within a building, the arrangement of furniture and color definition can serve as a means of identifying controlled space. b. Provide clearly marked transitional zones. Persons need to be able to identify when they are moving from public to semi - public to private space. c. Gathering or congregating areas to be located or designated in locations where there is good surveillance and access control. • d. Place safe activities in unsafe locations. Safe activities attract normal users to a location and subsequently render the location less attractive to abnormal users due to observation and possible intervention. e. Place unsafe activities in safe locations. Placing unsafe activities in areas of natural surveillance or controlled access will help overcome risk and make the users of the areas feel safer. f. Redesign the use of space to provide natural barriers. Separate activities that may conflict with each other (outdoor basketball court and children's play area, for example) by distance, natural terrain or other functions to avoid such conflict. g. Improve scheduling of space. The timing in the use of space can reduce the risk for normal users and cause abnormal users to be of greater risk of surveillance and intervention. h. Redesign space to increase the perception of natural surveillance. Abnormal users need to be award of the risk of detection and possible intervention. Windows and clear lines -of -sight serve to provide such a perception of surveillance. i. Overcome distance and isolation. This strategy may be accomplished through improved communications (portable two -way radios, for example) and design efficiencies, such as the location of restrooms in a public building. • PD -17. Businesses desiring a business security survey of their location can contact the Crime Prevention and Plans Unit of the Temecula Police Department. G: \PLANNING\2009 \PA09 -0061 Jehovah Witness DP CUP \Planning \Hearing \COA document.doc • PD -18. Any business that serves or sells any type of alcoholic beverages will comply with all guidelines within the Business and Profession Codes and all other guidelines associated with the State Department of Alcohol Beverage Control. Contact the Temecula Police Department for inspections and training for both employees and owners. This includes special events held at business locations where alcohol will be served for a fee and the event is open to the general public. PD -19. Any questions regarding these conditions should be directed to the Temecula Police Department Crime Prevention and Plans Unit at (951) 506 -6793. PUBLIC WORKS DEPARTMENT General Requirements PW -1. Unless otherwise noted, all conditions shall be completed by the developer at no cost to any Government Agency. It is understood that the developer correctly shows on the site plan all existing and proposed property lines, easements, traveled ways, improvement constraints and drainage courses, and their omission may require the project to be resubmitted for further review and revision. PW -2. A Grading Permit for precise grading, including all on -site flat work and improvements, shall be obtained from the Department of Public Works prior to commencement of any construction outside of the City- maintained street right -of -way. • PW -3. An Encroachment Permit shall be obtained from the Department of Public Works prior to commencement of any construction within an existing or proposed City right -of -way. PW -4. All grading and improvement plans shall be coordinated for consistency with adjacent projects and existing improvements contiguous to the site and shall be submitted on standard 24" x 36" City of Temecula mylars. PW -5. The project shall include construction -phase pollution prevention controls into the design of the project to prevent non - permitted runoff from discharging off site or entering any storm drain system or receiving water. PW -6. A Water Quality Management Plan (WQMP) must be accepted by the City prior to the initial grading plan check. The WQMP will be prepared by a registered civil engineer and include site design Best Management Practices (BMPs), source controls, and treatment mechanisms. PW -7. The Applicant shall comply with all underlying Conditions of Approval for Tentative Parcel Map No. 34711 (PA06 -0103) as approved on August 17, 2006. PW -8. All on -site drainage facilities shall be maintained by a private maintenance association or property owner. • Prior to Issuance of Grading Permit(s) PW -9. As deemed necessary by the Department of Public Works, the Developer shall receive written clearance from the following agencies: a. San Diego Regional Water Quality Control Board G: \PLANNING\20091PA09 -0061 Jehovah Witness DP CUP \Planning \Hearing\COA documentdoc • b. Riverside County Flood Control and Water Conservation District c. Planning Department d. Department of Public Works e. Riverside County Health Department f. Army Corps of Engineers g. Fish and Game PW -10. A grading plan shall be prepared by a registered civil engineer in accordance with City of Temecula standards, and shall be reviewed and approved by the Department of Public Works prior to the commencement of grading. The grading plan shall include all necessary erosion control measures needed to adequately protect the site (public and private) and adjoining properties from damage due to erosion. PW -11. The developer shall post security and enter into an agreement guaranteeing the grading and erosion control improvements in conformance with applicable City Standards and subject to approval by the Department of Public Works in accordance with Grading Ordinance Section 18.24.120. PW -12. A Soils Report shall be prepared by a registered soil or civil engineer and submitted to the Department of Public Works with the initial grading plan check. The report shall address all soil conditions of the site, and provide recommendations for the construction • of engineered structures and pavement sections. PW -13. A Geological Report shall be prepared by a qualified engineer or geologist and submitted to the Department of Public Works with the initial grading plan check. The report shall address special study zones and the geological conditions of the site, and shall provide recommendations to mitigate the impact of liquefaction. PW -14. The developer shall have a Drainage Study prepared by a registered civil engineer in accordance with City Standards identifying storm water runoff expected from this site and upstream of this site. The study shall identify all existing or proposed public or private drainage facilities intended to discharge this runoff. The study shall also analyze and identify impacts to downstream properties and provide specific recommendations to protect the properties and mitigate any impacts. Any upgrading or upsizing of downstream facilities, including acquisition of drainage or access easements necessary to make required improvements, shall be provided by the developer. PW -15. Construction -phase pollution prevention controls shall be consistent with the City's Grading, Erosion and Sediment Control Ordinance and associated technical manual, and the City's standard notes for Erosion and Sediment Control. PW -16. The project shall demonstrate coverage under the State NPDES General Permit for Construction Activities by providing a copy of the Waste Discharge Identification Number (WDID) issued by the State Water Resources Control Board (SWRCB). A Stormwater Pollution Prevention Plan (SWPPP) shall be available at the site throughout • the duration of construction activities. G:\PLANNING\20091PA09 -0061 Jehovah Witness DP CUP \Planning \Hearing \COA document.doc • PW -17. The developer shall comply with all constraints which may be shown upon an Environmental Constraint Sheet (ECS) recorded with any underlying maps related to the subject property. PW -18. Permanent landscape and irrigation plans shall be submitted to the Planning Department and the Department of Public Works for review and approval. PW -19. The applicant shall comply with the provisions of Chapter 8.24 of the Temecula Municipal Code (Habitat Conservation) by paying the appropriate fee set forth in that ordinance or by providing documented evidence that the fees have already been paid. _. PW -20. The developer shall obtain letters of approval for any off site work performed on adjoining properties. The letters shall be in format as directed by the Department of Public Works. PW -21. The site is in an area identified on the Flood Insurance Rate Map. This project shall comply with Chapter 15.12 of the Temecula Municipal Code which may include obtaining a Letter of Map Revision from FEMA. A Flood Plain Development Permit shall be submitted to the Department of Public Works for review and approval. Prior to Issuance of Building Permit(s) PW -22. Improvement plans shall conform to applicable City of Temecula Standards subject to • approval by the Department of Public Works. The following design criteria shall be observed: a. Flowline grades shall be 0.5% minimum over P.C.C. and 1.00% minimum over A.C. paving. b. Driveways shall conform to the applicable City of Temecula Standard Number 207. c. Concrete sidewalks and ramps shall be constructed along public street frontages in accordance with City of Temecula Standard Number. 400. d. Improvement plans shall extend 300 feet beyond the project boundaries. e. All street and driveway center line intersections shall be at 90 degrees. f. Public street improvement plans shall include plans and profiles showing existing topography, utilities, proposed centerline, top of curb and flowline grades. g. Landscaping shall be limited in the corner cut -off area of all intersections and adjacent to driveways to provide for minimum sight distance and visibility. PW -23. The developer shall construct all public improvements outlined in these conditions to City of Temecula General Plan standards unless otherwise noted. Plans shall be reviewed and approved by the Department of Public Works. • a. Improve Calle Garisol (Collector Road Standards - 66' R/W) to include dedication of half -width street right -of -way plus twelve feet, installation of half -width street improvements plus twelve feet, paving, ac berm, street lights, drainage facilities, signing and striping, utilities (including but not limited to water and sewer). G: \PLANNING\2009 \PA09 -0061 Jehovah Witness DP CUP \Planning \Hearing \COA document.doc • b. Improve Aussie Lane (Local Road Standards - 60' RAN) to include dedication of half -width street right -of -way plus twelve feet, installation of half -width street improvements plus twelve feet, paving, ac berm, street lights, drainage facilities, signing and striping, utilities (including but not limited to water and sewer). c. All street improvement design shall provide adequate right -of -way and pavement transitions per Caltrans standards for transition to existing street sections. PW -24. The developer shall construct all public improvements in conformance with applicable __ City Standards and subject to approval by the Department of Public Works including street improvements, which may include, but not limited to, pavement, curb and gutter, sidewalk, drive approach, streetlights, signing, striping, sewer and domestic water systems; undergrounding of proposed utility distribution lines; and storm drain facilities. PW -25. A construction area Traffic Control Plan shall be designed by a registered civil or traffic engineer and reviewed by the Department of Public Works for any street closure and detour or other disruption to traffic circulation as required by the Department of Public Works. PW -26. A Signing and Striping Plan shall be designed by a registered civil engineer approved by the Department of Public Works for Calle Girasol and Aussie Lane. PW -27. All access rights, easements for sidewalks for public uses shall be submitted and • reviewed by the Department of Public Works and City Attorney and approved by City Council for dedication of the City where sidewalks meander through private property. PW -28. The building pad shall be certified to have been substantially constructed in accordance with the approved Precise Grading Plan by a registered civil engineer, and the soil engineer shall issue a Final Soil Report addressing compaction and site conditions. PW -29. The developer shall obtain an easement for ingress and egress over the adjacent property. PW -30. The developer shall pay to the City the Public Facilities Development Impact Fee as required by, and in accordance with, Chapter 15.06 of the Temecula Municipal Code and all Resolutions implementing Chapter 15.06. PW -31. The developer shall pay to the City the Western Riverside County Transportation Uniform Mitigation Fee (TUMF) Program as required by, and in accordance with, Chapter 15.08 of the Temecula Municipal Code and all Resolutions implementing Chapter 15.08. Prior to Issuance of Certificate of Occupancy PW -32. The project shall demonstrate the pollution prevention BMPs outlined in the WQMP have been constructed and installed in conformance with approved plans and are ready for immediate implementation. PW -33. As deemed necessary by the Department of Public Works the developer shall receive written clearance from Rancho California Water District, Eastem Municipal Water District, or other affected agencies. G:\PLANNING\20091PA09 -0067 Jehovah Witness DP CUPIPIanning \Hearing \COA document.doc • PW-34. Corner property line cut off shall be required per City of Temecula Standard No. 603A. PW-35. All public improvements, including traffic signals, shall be constructed and completed per the approved plans and City standards to the satisfaction of the Department of Public Works. PW-36. The existing improvements shall be reviewed. Any appurtenance damaged or broken shall be repaired or removed and replaced to the satisfaction of the Department of Pubiic Works. PW-37. All necessary certifications and clearances from engineers, utility companies and public agencies shall be submitted as required by the Department of Public Works. • • G:\PLANNING12009\PA09-0061 Jehovah Witness DP CUP\PlanninglHearing\COA documenLdoc , ��'ARREN 2 VdILL1AMS , _- 1995 MARKBTSI'RFET Grneral �t:mseer-Chic(Bneineer - Rll'LRSIDE, CA 9?501 l� 195�. I �Un � - PAX ��i I .7i;5-y9i,s �v�v���_Iloud�ontrul.co.rn�crs�dc.ei us 5118U 6 RIVERSIllE COUNTl' PLOOD CONTROL D�_ �[S (] � AND WATGR CONSERVATION DISTRICT City of Temecula Plannin De{�artment � ' " � � 3 �i �� Post Of�ce Box 9033 Temecula, California 92589-9033 Attention: �� L�W �� Ladies and GenUemen: Re: 1" ��� ��"" The District does not normally recommend conditions for land divisions or o[her land use cases in incorpora�ed cilies. "fhe District also does not plan check city land use cases, or provide State Division of Real Gstatc letters or oiher flood ha�<ird reports for such cases. Distnm comments/recommendations for such cases are normally limited to items of specific interes� to the District includin� Distriet Master Drainage Plan facilities, o[her reeional Flood control end drainace facilities �vhich could be considered a Iogical component or ex[ension of a master plan system, and District Area Drainage Plan fees (development mitigation fecs). in addition, infonnation of a general nature is provideA. The District has not reviewed the proposed projec� in detpil and the following checked comments do noi in anv way cons�itute or im�ly Distric� approval or endorsement of the proposed projee� wid� respec� to Flood hazard, public heelih and safery or any ol ier such issue: _ No comment. �i _ This project �vould no� be impacted by Dis�ric� Master Drainage Plan facilities nor are other facili�ies of regional interest proposed. , _ This project involves District Master Plan facilities. 'I'he Districi �sill accen o�vnership vf such facilities on � «�rirten request oC Ihe Ci�y. Facili�ies must be construc�ed to Distric� s�an���rds, and District plan cheek and inspection will be required for DisRict acceptance. Plan check, inspection and administrative fees wiil be required. _ This project proposes channels, storm drains 36 inches or larger in diameter or other Cacilities lhat could be considered regional in nature and/or a lo�ical extension of the adopted _ Master Drainage Plan. The District would consider accepting ownership of suc[i �Irties on wntten reques� o the Ciry. . Facilities must be co�strueted to Distric[ standards, and Dis[ric� plan eheek 1nd inspection will be required (or � District acceptance. Plan check, inspection and administrative fees �a�ill be required. 7'his project is located within the limits of the District's �UY��p} " Cjqn}G �Zt�{-Yl�QisVAIIQy_ Area Draina ��e Plan f�or which drainage fees have been adopled; applicablelees sl�� e paid�y c��iers c iec or money order only lo the P'lood Control District or City prior to issuance of grading permits. ['ees m be paid sliould be at ihe rate in effect at the time of issuance of [he actual permi�. _ An eneroachment permil shall be obtained for any construction �related activities occu�ring wilhin Districi rigM of way or Cacilities. For fi�rther information, contac[ the District's encroachment permit section a� 951.955J 266. GENG1iAL INFOR117AT10N This project may require a Nalional Pollutan[ Discharge Elimination System (NPDLS) permit ftom the State Water Resources Control Board. Clearance for grading, recordation or other final approval should not be given until the Ciry has determined that the projec[ has been granted a permit or is shown to 6e exempt. If this projec� involves a Pederal Gmergency Managemen� Agency (FEMA) mapped flood plain, then the Ci[v shouid reqmre the applicant to provide all studies, calculations, plans and other information required lo ineet FEMA requirements, and should further reqmre that the applicant obtain a Co��ditional Letter oC Map Revision (CLOMR) prior to grading, recordation or other final approval of the projec[, and a Letter of Map Revision (LOMR) prior to occupancy. (f a natural watercourse or mapped Flood plain is impacted by[his project, the Cit}� shouid rec�uire the appiicant to ob[ain a Section 1602 Agreement from the California Department of Fish and Game and a Clean Rater Act Section 404 Pennit from Ihe U.S. Arm�� Corps of Engineers, or wrinen ec�rrespondence from Ihese agencies indica�ing the pro�ect is exempt from [hese requiremen[s. A Clea� Water Act Section 401 Water Qoalit�� Certification may be required rom the local California Reg�onal Water Quality Control Board prior [o issuance ofthe Corps 404 prnnii. � � Very tnil}� yours, ���� ALE V. ANDERSON L'ngineering Project Manager c Riverside County Planning Department Date; 4� �U � � � Ann: Katldeen Browne C ...uNTY OF RIVERSIDE . C7Q1ku•,UNI I Y HEALTH AGENCY i . DEPARTMENT N OF Ef _ rljf ON N J L . 4'. .. _ . z: `i}'^W.... ? ..' „x :1 ,1e iezi,: < """ '.v' t..3 L 111MIT AWS..act'" `' °"4 ' guts ;. `a`i atitrkV RECEIVED February 9, 2010 FEB 1 7 2010 City of Temecula Planning Department Attn: Eric Jones Planner P.O. Box 9033 Temecula CA 92589 -9033 SUBJECT: PA09-0061 — KINGDOM HALL OF JEHOVAH'S WITNESSES 31640 CALLE GIRASOL, TEMECULA, CA Dear Mr. Jones: The Department of Environmental Health (DEH) has reviewed the application for the • above project and offers the following comments: POTABLE WATER SERVICE — RANCHO CALIFORNIA WATER DISTRICT This project is proposing Rancho California Water District (RCWD) potable water service only. It is the responsibility of the developer to ensure that all requirements to obtain potable water service are met with RCWD, as well as, all other applicable agencies. Please note that any existing well(s) may have to be abandoned or removed prior to connecting to RCWD potable water service at their discretion. Any well removal or abandonment activity must be conducted under permit with DEH. DEH CLEARANCE IS REQUIRED PRIOR TO BUILDING PERMIT ISSUANCE DEH will accept for review the proposed use of an Onsite Wastewater Treatment System (OWTS) for this project based on ESI Soils Percolation Report Project #08 - 0711 -SP dated August 7, 2008. It should be noted that the aggregate daily wastewater flows generated for this project must not exceed 3000 gallons per day. Upon building submittal, the applicant must submit to DEH for review at least three copies of detailed contoured plot plans wet stamped and signed by the Professional of Record (ESI) and drawn to an appropriate scale showing the location of all applicable detail as required in the DEH Technical Guidance Manual. • If grading is proposed, the applicant must show all pertinent detail on scaled Precise Grading Plans wet stamped and signed by the Professional of Record (ESI). Any significant grading at the proposed OWTS area may require further soils percolation testing and /or engineering. • Eric Jones, Planner City of Temecula February 9, 2010 A floor plan of the proposed structure showing all proposed plumbing fixtures including information regarding all building's final occupancy schedule must also be submitted to DEH for review to ensure proper septic tank sizing. DEH staff will conduct an onsite evaluation to verify information on the submitted plans and observe water levels in the groundwater detection boring. It is the responsibility of the applicant to ensure that the groundwater detection boring (4 inch perforated pipe installed at least 10 feet below the proposed leach line trench bottom) remains onsite and intact, Please note that if groundwater encroachment is observed, further engineering, as well as, Regional Water Quality Control Board Clearance may be required. Moreover, the applicant must clearly identify the job property with a durable placard specifying the site address or Assessor's Parcel Number. All property corners must be clearly staked or marked. • FOR ANY PROPOSED PUBLIC FOOD FACILITY / OPERATIONS A total of three (3) complete sets of plans for each food establishment are needed including a fixture schedule, a finish schedule and a plumbing schedule in order to ensure compliance with current Local and State Regulations. For any questions regarding public food facility requirements, please. contact: • Department of Environmental Health, District Environmental Services, Murrieta 38740 Sky Canyon Drive. Suite A, Murrieta CA 92563 Tel. (951) 461 -0284. HAZARDOUS MATERIALS HANDLING AND STORAGE The facility may require a business emergency plan for the storage of hazardous materials greater than 55 gallons, 200 cubic feet or 500 pounds, or any acutely hazardous materials or extremely hazardous substances. If further review of the site indicates additional environmental health issues, the Hazardous Materials Management Division reserves the right to regulate the business in accordance with applicable County Ordinances. Please contact the Hazardous Materials Management Division, at (951) 358 -5055 for any additional requirements. • • Eric Jones, Planner City of Temecula February 9, 2010 IF you have any questions regarding this letter please contact me at (951) 955 -8980. Sin -1v, Michael Mistica, R.E.H.S. Environmental Health Specialist IV • • • • 3 • irCEOVE1 March 10, 2009 MAR 1 1 2009 Rancho Water Project Planner City of Temecula . Planning Department Board of Di] ecmrs Post Office Box 9033 Ralph H. Daily Temecula, CA 92589 -9033 "— Presideni Lisa I). Herman Sr Vice President SUBJECT: WATER AVAILABILITY Stephen J. Corona DEVELOPMENT PLAN WITH CONDITIONAL USE Ben IL Drake PERMIT - KINGDOM HALL OF JEHOVAH'S WITNESSES John E. Hoagland PARCEL NO. 2 OF PARCEL MAP NO. 34711; APN 957-120 - Lawrence M.Liheo 019 [J. VAN HAASTER] William E. Plummer To Whom It May Concern: officers: Maw hew aStone Please be advised that the above - referenced p roject /property is located within the 1 General Manager service boundaries of Rancho California Water District (RCWD). The subject Phillip l,. Forbes, CPA project /property fronts an existing 8 -inch diameter water pipeline (1610 Pressure Assistant General Manager) • Treasurer Zone) within Calle Girasol. Please note that the subject area is ultimately Perry a.Toads programmed to be serviced from the 1485 Pressure Zone, which will result in Director of Planning lower water service pressures. Andrew L. Webster, Pt Acting District Engineer Jeffrey D. Armstrong Water service to the subject project/property does not currently exist. Additions Chief Financial Officer or modifications to water service arrangements are subject to the Rules and Kerb E. Garcia Regulations (governing) Water System Facilities and Service, as well as the District Secretary C. Michael Gowen completion of financial arrangements between RCWD and the property owner. Best Best & Krieger LLP General Counsel Water availability is contingent upon the property owner(s) destroying all on -site wells and signing an Agency Agreement that assigns water management rights, if any, to RCWD. In addition, water availability is contingent upon the timing of the subject project /property development relative to water supply shortage contingency measures (pursuant to RCWD's Water Shortage Contingency Plan or other applicable ordinances). As soon as feasible, the project proponent should contact RCWD for a determination of existing water - system capability, based upon project - specific demands and/or fire flow requirements, as well as a determination of proposed water facilities configuration. If new facilities are required for service, fire protection, or other purposes, the project proponent should contact RCWD for an assessment of project - specific fees and requirements. Please note that separate water meters will be required for all landscape irrigation. III i i 09iCW IrnO I I AF450AFEU Rancho Calil,■rnia Water District 41135 Windiest, r Road • Poo o0ce Bo' 0014 • 9_a - l Olila,nia 92559 • ...I , . • FAX I:HI 2itil uyen Water Quality Management Plan (WQMP) • Appendix B Vicinity Map, WQMP Site Plan, and Receiving Waters Map . WQMP Preparation/Revision Date: 12/6/08, 7/17/09, 8/25/09, 10/14/2009, 12/12/2010 Water Quality Management Plan (WQMP) • Kingdom Hall of Jehovah's Witnesses • Appendix B Vicinity Map Y M( R RIeT, HOT SPRINGS ROPO 0) 3 (SITE z NICHOLAS ROPO v , � OPO o GIRASOL 01 t C.) V ICINITY MAP A * N.T.S. L et I October 14, 2009 '.5' I (84 -- .+' I � _ i - ' �o ( o J aual ` 1 •■ ._ • rra.r �^ , � ! -•j 1 7 �.�.� I AHUI 0 PEAK ( _ J / , ,�. .• . � � J 7859' I Valle ' k Q Wmdmi Ski o • V _5l. ' .. e / Ra!1('i r (( { t . f a is i •serc U ► / a �• r 1 1, . w dmw f , _ ' 4110!... f. - -.-, 1 � f . a. i and 1 y a \\ ey F.laina.r t YaMe s , N r84.• s9 o0 1 s ward Stati9 } \St Pk mmund 6 , •n_► ..671 �o rlist t)e� . { . `-`r:. µ� j \ . edCV LH oi�• A r n4 11 ('e r I N ; A l ' ; l ila • ! SNylark \ e N ' ^ 1.', Q j+ 3T ftERU �! • • r2�o t um � �� M 1 t 'f 4 / N /. 4 - t �F .� � / Wlndml sr I ,4• / ` % 1 .25 \ -, EL' PEAK 'y!• �� i t 'Et MOUNTAIN / 5�� ytJ.l I 4 —\ ( r ndmi r e lSf t � 1 rili . j . Ai d s S ,PFAK I 1 -ter `� R� V� ie/ �.' ' 1 . u 5 l i \ IR 32 73 Ranch • \ , // F "R E S T� < Na 2s93 )411‘ I,I • // \ � r. / 1 c / 1 { ocl . / .e' / 1 j Lan " I �L �► . I ndmil j \Rich 1 '�, Los Alamos' ` .." r i . � �,.. (TE Y —� � rr I ' f 7K ESA -ovate; I YY L� indt9Uk -. • o { I Y r�ete ''' ( o � / / r„ z zy, • 6 `rte 7! , �. ./ et �, --.1 1i r ! � � r r a Q , e � -- / r eV ,sr-' ( • • /MOUNTAI ` \ `\ ' 1 � RIVERSI E COUNTY ` , ./ 'Jan , r 11 r' $A D c69 COUN . M'Tt i. � 1 r 01 lwIrl •- •• ' iln at � / c-..„4 ( ' .I%1 der 2 95 e / Ti) •A I J ! ` V ems' l am- '„t'',.Nl�, �l� ReAch jr, . �, ti. 1 t . r� �, y •` ' ' l Ranch +; k� f ,, I L , ,y,r�rlmill n burial *Gun, 1 1 / — R -•. * nch I r .,/,' �. .;\ - --�y %.�'t Re . 1 - <.,.y1 / r2• ,ir ( / ` � n ch �i �� 4110 7094'. '\•�,�Ifater \ -'I 1 Ran . - - Ranch 1 �dm HANGA �• / r y31 - Ra c 3)1 GAVII • •AIN • � �� I •' 0- r X183 . - X 14 \ \ t -4,;., e lf i� ana 1 t) _pooh _ I - - VA 7TVN 1 e. I f I ' ; X r Ij, l • f , _ s.• l OLYMPUS . _ • / ! ,,�� � E4" * p r X61 / 1 / r... ; I h p t / - �/1f � �. L f RED TA1 / ( r- I I _ • So n z� " '� :111 t ooko IFr � el ,. • 3 JVpm�rous %; \ � / \ J r \ A anch sl at n ? I t t ` , 4 ., TOURMA E QUEEl1 f o D 1 T 01 k ) II rook - - Jai T n ! W a t er - - J i amp /" t 658 ' ty i 't + �( F BR e e It fra i :Ise * a a , _ _ r — 7 ° o• ) . NA . �4 e 4 t \ � �Jt r :+te' �'�, / . /1350 _! y � . S� a ( I 'OP' j � € , , I �i I o I --1- , , I de t f�AL ' k, �_., ,). l ' L , , r 1' , r ` I \ er , mod ' r INDIAN r `ea ter. , 1 I I ` i 1 ■ nc se_ .•r 1 N _ i , ' , Jr -1= �. I 1 1 l" - M esa RESERVATION ••• Q •Y 1 y } a a , j \� , , • Si f i.� o 4 ,,- 2 r f , '� it, 1 1C• p Pg dl on ata r,�'' / 4 ' S ` is i ht ♦ f � F � l i Q� � ., -� ` Palma \ �r 1 . ` ' , . . � d' +'!'J / ( IM)*R IL L d '�' Ranch ` ` • WEAV • � / s (i 2 sa . MT ARA(RA anch y t �.i I / `/ , I t ) 1628 • � n Z10 I r r ■ 1 R i',1( 1 W p F /' .+ t 1 ( o; "1 • ackinton `' S ! /' ��( r J C iO .1 103: ` -L �..6 ii oll Li , . , w/ •ui � / t tLd _ r� i . Ai c W1ndm a9 r l o AI ,:p.... � r ' r l 'ru rJ nr . ~ \ + 1 s� 1 0 4 8 t c .1,.,1'l .. _ 5 �•' •tom / � R ey �RT ; 3 m s ..._ . r • I r. 28 M r ! 1� . •Y en - 'Nerd 39 y _, Anzet Light . • ! �" • fll,(�R T M • IN' • ,• . r te. _ :,, i ' . s i ( 1- ' "r" - , -Auk 1 \ 84,4 84,4 OCEANSIDE •''"i' ' , L_ ;I , - { \ ••.... • f � st e r tai . • rr . -•' l tt ' - � y W . esmod 1 • •✓ ��. Y i l,rt. N • t I :. ..•‘• sr_ , i • oyena. 1 a B 1, Wo Iford q r■41 I 0 ---- _--- . . ±•,04. , ! ON ,----- ,LA, .,',...q../Pi 'F (.., RI1/2 :; .' f, Si f i f )E. STA i '': 1 ). 4 (...'.4! A , . PARCEL MAP 34711 - 7-.-__ AS •----- ! ‘k V BEING A ij)YV OF ii i 0: PAR0ii. 2.3 i i 1 OF 41AP RECORDED IN 3001( 1 OFPARCEL /OAPS, P4GES 44 ' AT. z ,,,. MA INCLUSIVE FILED IN THE RECORDS OF RIVE.RSIDE COUNrr' CALIFORNIA FOUND 1- OP *TN TAG LS, 6 ON , S . VICINTri P 1, ki ...$ F OUND 1-1 /4' IP 9171i ' TS c.,/ f .i. I A C Tit'IG FliCitiAlk-4.7;C: .1/ 2(... • AG LS 4136 DN 1 i I ' .., . ,. :..-Tft i46-01 GRAPHIC SCALE _pp fit, 120 !i3e1 . 44 , 644 SEARCHED FOR FOUND r IP DISTURBED i 1 INCH = 60 F'7 PAN& 2 NoT FouND . . , :. romp 3/4' V MTH PLASM PLU0 RCE .* 26E46, FLUSH PER PARCEL MAP 14493, ON, 0.5 0.15' 0 S6r06 ' PMA 87/611 ACCEPTED AS N.E. CORNER rITD.4 Ilk S.W. COR. Of no 72/6142 c-ss.. PARCEL 1 OP SAID MAP ,- PARCEL 2 PMB 23/27 • NOT ACCEPTED AND SEARCHED, NOT FOUND • 'Ik' ,.., ••• V ''.. •.! SET sr REcoRo ANGLE '',51'5.- : . \ FOUND ;-1/4' P MIN NOTNING SET PALN21 ilkikuP CW . ) TAG L.S. 4136 AN 1' .z. AND DIST PER NIB 73/41-42 5.0 t a 'T ,, s ?A , ... 4 .4 .t • 99 ,..- ' \k....t.-3°. ^1 d V ,.-- e'7ret7 20/2T7 J.- \ 1 - -a FOUND 1-1/4"11 9 LA. ',. C - ' i't „..7 PE CAL" R :C4CULA P103 . TED 87/80 '.."., FOUND r 1I TAG LS 3385 RCE 22031 PER PM 73/42 SA , TT . ce... .' CORNER, PARCEL 2 PM9 23/27 NOT ACCEPTED AS SW. '. .' -..• ,-.., CAR PARCEL 2 „ .- MIMI AA? c44- •, - USED FOR LINE ONLY t... Citilt Hi& laga ' -- 3_ 7 3;? - ).; -- \ ...-- a blITALFg, il I.NJ g37 AN N 65"59'ir E .. ' fOUNO, oaTROYED, BENT PIPE, NOT ACCEPTED 4 USING RECORD ANGLE PER PAO 23/27 AND Ptig 212/18V41„ ctr a - 6534'15' I/44-46. SEARCHED S. R 5A00' N.A.A>1 : s 4 -.: t . 5296' 6 = 66 - - A ' f HOMING FAUNA , C.L. CfFSET PER •, „....: „- ‘3s s\. , ,.. `'.. .a:\":" le %...: P . saw PUB 23/27 .z. - ' v2' 4 A - „';'' .,‘ .‘, L. A 57.96' ' s a , ix. .., , ‘ *IS. . ..30-00: ' •, ; 'ex at 41 '.•:',.."... .' s. 0- ,, .„, \ ...‘ PARCEL 1 . t le', : •_,.-?„ & ! - , -• : • A •i...‘f ‘ . 1-6 \ • ".:,„...,. • f wv-snir w j , mow i 317 017 - -AA, FD. 2* IP, NAIL NO TAG ..-.,-- OATS OF FLOOD PLAIN 44-4 ., PliSt.M. 4 ■ 11 '' ..i.... ,....., ACCEPTED AS ANGLE POINT 20.52' l •,, T ,,-', g PARCEL 23 PER PU 1/E AND PER RS 61/29 .. 1 ", V • SI : I . ./T. . .. ' 0 I ... A .. ..'. . • ..1 1:.. % ,"' 'S ' —, ■ NATURAL WATER CURSE ..3 CI ,- . •••, PARCEL 2 ... 4. .0 \ . . . , l ' , - ....k ,...: ' I l i 4) '''.'.' 2 32 AC. NET 4), ..,,, .,. .. 9 — VA Sin@ (..D .i., 4 .",- -. 2e.. ii . 4 0 . it* ,...,- ..... -,,io ":,.,. -- ..,.? 3 AA , . "..%,.....4A6,33; ..i.'..i!.7:, , ::•i'''. P - ' )-- ,.---- .. ..... - .. , ....., .., 11.1 A ."•*`.... A. 33' I 2.3.60.1.,,' LU QA . ', ! '- • ^..... - ',-, t08g".2?'24 49.26' I Ara, ,„‘' •: .z.o.x.' --3 ze.t. .. 245 06 .1 '••• ',.., : .8 , ti LOT 13` - R 45.°2 5 ' . ; .: SEARCHED FOR MON. T., i ,, n . j. ,' - NOTHING FLIAD - t N89"27`24`W I &sap. F 550,48 ; i .s. A.T 1 •-•• .5. :7•4 .,,,,,,,,,....., ,..: 7 0 q37.... 4 ' r iv‘,85-k4. i ‘;>-. SET BY tfilERSECTION c_ CAL LE GIRASOL .›, - SEARCHED F V OR MON. gi..e...,C,,,,,,, PMR 81/60 AND RS 52119 " SET 31 OFTFRSECTION r‘i AND P545 23/27 NOTHING MIND PER PIA 7/44-46 AND A .5.? SEARCHED. NOT rOIJNO ?JAR 67,40 rA, - i-1/4" IP TAGGED SY ,\W SEARC40, NOT 6 0UND ',--.. R.': E. 12 FLUSH, '''' PER P IA 1/44-46 O ,..�.w> :w:w��oa�aiu�n:�aoae:�:wn : � i r O e .��..we� a = , _�� Nj � ,�..�� � M« ��:,is n:a oos�e r Q° ' � ^�u, � Ilex moPaulM lo:e allea a 9 �. �L '�'pl'K°'7 e"=1 Id s W 6 0$ o.: :� S • � � �a � v �A £S e � � Y I � . J p S =& 8 a �"- y tl d� F � � .. � i SR P a j € � �') , - g '' � a# s x d` o�L £ e P£ � � - 5� d � 3 yfl d n = // t @� � A fi � � � � �. �� �s$e6a g�Q � � s �.� � ��� I 3 s ��$ / � i � e � F ; �€ �-�a � � �m� a �� a � fr ¢ � �/ � \ n �8 E $e h9 � � ��� � £s .. _ ; �� � �� J � // H �� ���� � ��� ae i d ���� ��� �em � �6 � ' � • // � ���� ,� �� � e / � �. ., ��s.��� � ��� ��ir ,< ' / i � �/ � / „ e /� % �. '� /�� � �s � �/ �i . . 0.��; t � � / �i s _ �: �� i �m, ° '� �i�'' �/`� �' ,� . " `� � � ,, �� ,, , � -� �� �/ ��, � n,' '. .. �' y �i / /f � ��� / � � � g �s ��� � j^, � � '�a /� � �$ // Y� �e :Y 4� � W�5 �� �'ss� °Ji '=!e9 i 3 • w�'u d ����� � � � � � � i �� co Z C'm N d �I � o ;; � ar Cj � �! i � i � � � a> w � � m m � o d o �� Q m U O W � E" Q Q m U � O> > > > > y => > > > tA � � o � O c o c I R N V r V V o � �j C .- Z O � � Z � z o c c � 'a c�� a� m °� � u c C °' °' E E ° 4= ° � e6 C ,= w U U U t-'' c6 �O (A U O U C N � `_- (� U >` � � +' N �n � .�.. N c0 � = 0 � U � H � � O � � � � � � � � y V" � o C� U U ... w � a' Q c � `o• r- O L tn � � p C N 7 C � Q ,�. � O Z 7 �. �� f0 � C �-' a m p� � �F , 0 (U � � f6 E Y'+ Q Q C r r p� �� N� 2 � � O N V � � � � � f0 � O� C= N � d d } C � *' �� d .p N d Q L � Q c c >, >, c E 3 in �n a E E� � :c � m m � E v �' �' o a�i a�i � � �� O � � o' � � �n �n � U R Q Q U � �(n `�" Z � I O v o 0 N � d y a _ �3 � � � � �C d ,, ?` `� � � � d � � � L �� � c V � o � � � o � w •� r a � � a � c v ai E o � o Q o � a� � � �� a � � �� o � o m � � � � � �o j� o � � E � a`�i a. m a"i � I c y c� m � m � � o ' w O � U � a � � � � i °� � o .. . = y � m Z � N O LL C � I C . 7 � � I O � � O O a C O • j �- � U Q +_' � N m (O (O (9 j (0 C 'O . � .� � •� f6 � N I � � H j� '� � � a` ii � u �,.- rv-.., � Water Quality Management Plan (WQMP) Appendix C Supporting Detail Related to Hydraulic Conditions of Concern • • WQMP Preparation/Revision Date: 12/6/08, 7/17/09, 8/25/09, 10/14/2009, 12/12/2010 • APPENDIX C Hydrology Report Pre — and -Post Conditions for the 2 -yr, 10 -yr, and 100 -yr storm events 9 • • Appendix C Supporting Detail Related to Hydraulic Conditions of Concern Hydrology Report AREA OF SITE NET (2 32 ACRES NET.) IMPERVIOUS AREA (1.02 ACRES.) INTIIAL FLOW DISTANCE 320 ft. FALL (1189 -1180) = 9 ft. TC =.530 X (3640888).2 =10.8 MIN use (10 min) R1 =71.6 SOILS TYPE "C" RCFC . Plate d -4.1 for rainfall intensities. Plate d -5.3 for Runoff coefficient PLATE Dl UNDEVELOPED DEVELOPED 2 YEAR 10 MIN = 1.51 " /HR 0.63 .77 2 YEAR 60 MIN = 0.56 " /HR 0.45 .63 10 YEAR 10 MIN = 2.36 " /HR 0.71 .81 10 YEAR 60 MIN = 0.88 " /HR 0.54 .73 100 YEAR 10 MIN = 3.48 " /HR 0.77 .82 100 YEAR 60 MIN = I.30 " /HR 0.62 .76 UNDEVELOPED VOLUME DEVELOPED VOLUME Q2 (10MIN) Q =1.5lx .63x3.09 = 2.90 cf 1.51x.77x3.09 =3.59 cf 2yr 24hr (1.8 "/12x3.09x.77)= 0.36 ac /ft (1.8 "/l2x3.09x82)= 0.38 ac /ft Q10 (10MIN) Q =2.36x .71x3.09 = 5.17cf2.36x.81x3.09 =5.90 cf 10yr 24hr (3 "/12x3.09x.77)= 0.59 ac /ft (3 "/12x3.09x.82)= 0.63 ac /ft Q100 (IOMIN) Q =3.48x .77x3.09 = 8.29 cf 3.48x..82x3.09 =8.82 cf 100yr 24hr(4.5 "/l2x3.09x.77)= 0.88 ac /ft (4.5 "/l2x3.09x.82)= 0.94 ac /ft STORAGE VOLUME 17,406 X 6" = 8,703 c.f.., PERCULATION 2 " /HRxI7,406 =2,785 c.f. AVAILABLE STORAGE PERCULATION 60min storm = 7533 +2,785/43560 = 0.24 ac. feet. The increase in volume by the development is .06ac /ft The available storage is .24 /ac /ft 60 min retention Pre - and - Post Conditions for the 2 - yr, 10 - yr, and 100 - yr storm events STORM EVENT • 2 -YEAR, 24 -HOUR 10 -YEAR, 24 -HOUR 100 -YEAR, 24 -HOUR Pre - development Post - development Pre - development Post - development Pre- development Post - development Q 2.90 3.59 5.17 5.90 8.29 8.82 (cfs) Velocity 4.6 5.6 8.2 9.4 13.2 14.0 (ft/sec) Volume (acre- 0.36 0.12 0.59 0.39 0.88 0..70 feet) Duration 10 MIN 10 MIN 10 MIN 10 MIN IO MIN 10 (minutes) • - — June 29, 211(1;5 • AREA 3. THE BASIN (SHEETS 10, 11) HAS A 4" OUTLET TO THE CREEK... I"1' HAS A STORAGE CAPACITY OF 2025 CU. FT THE MAXIMUM REQUIRED STORAGE FOR A 3 HOUR STORM IS 1771 CU. FT. HOWEVER SINCE THIS BASIN IS RECEIVING FLOW FROM BASIN NO. 2 , A CALCULATION WAS MADE 7 'C) DETERMINE THE AMOUNT OF OVERFLOW THAT WOULD BE. DIR1;C EI) I v THE CREEK. DURING VARIOUS STORMS. (SHEETS 16 -19) TO BE 1034 CH 041 DURING A 15 MIN PERIOD DURING A 1 YEAR STORM, 237 CH FT FOR A 3 YEAR STORM 57 CU. FT FOR A 6 HOUR STORM AND 373 CU. FT FOR 1 2 4 HOUR STORM. SHEET 22, CALCULATES THAT THE FLOW FROM A 100 YEAR STORM \VO1 B13 4.77 C.F.S. OR 25,000 CU. FT FOR A 24 HOUR PERIOD. AS COMPARED l u A MAXIMUM OF 1,034 CU FT AFTER CONSTRUCTION. THE PRESENT FLOW FROM THE AREA WOULD BE ABOUT 15,000 CU. FT FOR A 24 HOUR, 100 YE,•AR STORM. • • 684k7 P 1 f: IRIPb: • SUI'1'I! as • (.:;11 (.If: (76n) J °4 -u2 }R FAX, final 321 -5u1 __ JOB / . /f �/Q Mt / 7 ENGINEERING, INC. A Civil it Engineers/Land Surveyor SHEET NO OF 41921 Beacon Hill, Suite A CALCULATED BY DATE Palm Desert, CA 92211 • 760-779-0657 Fax 779 -5143 CHECKED By DATE SCALE � H J7a - / e�f 5 � 5,47;.. Jf -t'S / — / SEE / 929 V O R O I A, 'd B A/ C D V E 2 lc � o W r � a cct f" a�. 20 Id • 1 j i �, e E �y P �` o i ' A �c{ Z ei erw • LALLE Clio oaF4 LL i D �m: i v a. a F �. aEC 91A`' x .-•-f.,, i cmr _ d • ,. ▪ = / F YFw c cH�u ya m € 2 � ' , V • / 3.� / f E N O t T ( \c) / ' [r &) / O ly, C0., 4 8 o -F € i usw 'caf �nE r 1 x • O' v> r ca u+ s �, n . Nfi uizn T w `\ \ f , A 2. caatc l N oq o f cn! r a a f l , r ..- C26-.... U� m 441v oW4 Y� is • _I 0 VIA Alto SST os% lanwG c% os -. . sco 5 �> 8 c } I I S ■ II ''. A r- I SrEM v oft P jA,: g i . l 1 ; l , e 5 < , - c r s r _.. l' i � r_ Mr ➢14 � I _� —A 3 = l t , - - - - z. ch E�,r e ,� ,.� = A te' § YYY % c Q / C tours �V ' h _ ..-Q I . 1o• A .-- 5 �S i n£ E P S � _ Vfif .115 GO � 4 .I eAFI 1 ICW RS CC) P 4 , '�� L � s ' .: • € ', P _ Q A i 1 � g / 9 Cp d '' v � e 5 ,zb w a No hilt � 4 c • �ni � e' M 0 . 64RITA E c. a 4 — It _� g • 3 �, f €3 4 / T 1/ _ 8 15:: ° � V P d im -_ -. l � I / 1 1 _ ' d EVarr� (?,e'-', i / A , , iS F \� ^' � � L � : , c / mkt n m J l �� .�,�� z �` L � s i s � / U A j , o �� I E xo ; m � � P r " Cale c uv : Q9N m -, 4 / �a i i o o.Acc/ / mss a � ' 1 l r sn e �°' i .9 .. CORTE h '' g g k c 9� v S '6I � �2 aQ' fr 6 - y cr. � c @ :su ^/� anN ,t SS z' �� i IK f y u iHf 0.� I/ I _ I I. INFIELD A a ,� 1 CHRISTIAN ' p %� 1 r rfn "s o �s vaun. y 1 * hCB . ° I cr v 'W. oc / j � i�F K \ 16 � A 1,rs,., .. _ EM•v i F c h i 1 a- °;� � l C ftSA RM1IA . w c is u J , `\S \ . 7 e r s C P11.151 !SC - t 1` ''G 1 WO \ A�,, \015t. - , i/ ��fsifreo � >r: 4 '� G fl. .e a f PRIM e7 l T " I si �otiAvgy 6 r a/ Vi € � S . , . SEE \ 9' ' >: \.e milPe ° \ ' %. • \ ' , \ \ \ 1 s , -.t.:.....c.„- 10 ii 0 . 1% 1 * , t' fil ' / V° . . • .4- • 1 ;0,0 0 \ '. t \ it \ I I- . 1 1 1 l •i:• -- .H 1 . 45 4 4 77 .4 i %I I jo) \ \ , ' N' A , 11/2_ N \ aollAltilik VIC104 4 , 0 spa° a ' \', ,,c 'SA A l 444,, .i,:, _„,.4 t: , „z--. -411t\c - \), '',\ \ ‘'‘, *V ' .eitilr ' Er ,..41 \ . cud.. .,..,• • •••„ <„: ,.,c .. Cover& irb- 4::) ' t 4 \ .8i ,.S4** 3/4 , *ilij Os- t_d : 311j- ' ilto .7 .7.10_111iligallegin.1 IM r , , ■ - • --- , .- . ale alli."11 ,., � � . Worksheet 2 Design Procedure Form for Design Flow Uniform Intensity Design Flow Designer: Company: Date: Project: Location: 1. Determine Impervious Percentage a. Determine total tributary area A, _ �- �✓� acres (1) b. Determine Impervious % i= U- �� % (2) 2. Determine Runoff Coefficient Values Use Table 4 and impervious °/o found in step 1 a_ A Soif Runoff Coefficient C = � b. B Soil Runoff Coefficient � = � • c. C Soil Runoff Coefficienl �_ �, ��; � d. D Soil Runoff Coefficient C = � (6) 3. Determine the Area decimal fraction of each soil type in tributary area a. Area of A Soil /(1) = Aa = r7J b. Area of B Soil /(1) = A (8) o = c. Area of C Soil /(1) _ �= l� S' � d Area of D Soil / (1J = p� _ ���� 4. Determine Runoff Coefficient � �.�jJ � a. C = (3)x(�) + �Q� + �SJ + �s�x(�o1= c = I � ,'�j b �� �� 5. Determine BMP Design fiow /, �'O,1%`L ��/, � J a. QBMP - C X I X A= (11J x O.Z X(1) QBI,nP - G/. �e �j ft ��p� s • �� 3 0 �-r . p, nr . /ze o ) io 0 • • Plot Slope Value from Appendix A here 2 1 1.9 1.8 1.7 1.6 1.5 - a) 1.4 cm t3 1.2 cn 1.1 0 m 1 cc) m 6 �. 0.8 < 0.7 0.6 0.5 _ 0.4 0.3 0.2 0.1 / 0 ----------- I I c 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 Runoff Coefficient (C) Figure 2 Unit Storage Volume Graph S Tc' LIMITATIONS: L 100 I. Maximum length =1000 Tc • -1000 - 90 2. Maximum area = 10 Acres 5 - 900 - 80 a - ` H - -800 -70 0 6- a, U — Y r o° _ 300 Q - - 700 - 60 o ° - 300 - v N. > - zoo 7 c o 0 0- n c - 600 E - 50 c E .E = 1 E ° ° ° Ir.- SO 8 0 CL--------------____ m u u ^40 _ u m- E o a -30 e, — 500 ti it (I) ° ` m — 20 9 - o 41 I-.) - =35 0 l' d= 10 e', .7 m m_ d -8 E w -400 n -30 K AI .n ►- 11 -u- c _ 0 _ Undeveloped �° - Good - r c z 12 - m _- 350 - 25 Y ,� _ Undeveloped c I - ° c Fair Cover ' -0 - - o c _ E _ 14- 00 - Undeveloped 0 'c- c -20 • c l21 15 -o 19 Poor Co o _ o 16 -.c • _ o -250 1- ,.71/ 18 1 Si amily 15 . , 17 -- - `— 16 (I/4 Acre) m 18 - c L - - c o , 15 Commerc - 0 m 19 = H a_ — 14 20 ( Pay:.:' w — 200 Q - 3 0 - o ev c _ 12 c 2 1 w - ° 8 II - c 25- • c o KEY - o -150 a) - g - ° - E LH Tc -K -Tc - - - o - ~ - 8 30- d _ EXAMPLE: .F k- - -7 (I)L= 550', 5.0 K= Single Family (I /4Ac.) 35- Development , Tc = 12.6 min. - - ` 6 - - 100 (2) L =550, H =5.0, K= Commercial 40 - Development , Tc = 9.7 min. - 4 Reference: Bibliography item No. 35. I R C F C a W C D TIME OF CONCENTRATION HYDROLOGY MANUAL FOR INITIAL SUBAREA PLATE D -3 RUNOFF INpEX NUhffiERS OF HYDROLOGIC SOIL-COVER COMpI,EXES FOR PERVIOUS ARF.AS-AMC II Cover Type (3) Quality of Soil Group Cover (2) A B C D • NATURAL COVERS - Barren (Rockland, eroded and graded land) 78 86 91 93 Chaparrel, Broadleaf Poor 53 70 80 85 (Manzonita, ceanothus and scrub oa}:) Fair 40 63 75 81 Good 31 57 71 78 Chaparrel, Narrowlea.f Poor (Chamise and redshank) � $2 $$ 91 Fair 55 72 81 86 Grass, Annual or Perennial Poor 67 78 86 89 Fair 50 69 79 84 Good 38 61 74 80 Meadows or Cienegas Poor (Areas with seasonally high water table 63 �� 85 88 � Fair 51 70 80 84 principal vegetation is sod forming grass) Good 30 58 72 78 Open Brush Poor 62 76 84 88 (Soft wood shrubs - buckwheat, sage, etc.) Fair 46 66 77 g3 Good 41 63 75 81 • Woodland Poor 45 (Coniferous or broadleaf trees�predominate. 66 �� 83 Canopy density is at least 50 Fair 36 60 73 79 percent) Good 28 55 70 77 I+'oodland, Grass Poor 57 73 g2 g6 (Coniferous or broadleaf trees with canopy Fair 44 65 77 82 density fran 20 to 50 percent) Good 33 58 72 7g URBAN COVERS - Residential or Commercial Landscaping Good 32 56 69 75 (Lawn, shrubs, etc.) � Turf (Irrigated and mowed grass) Poor SS 74 93 g7 Fair 44 65 77 gZ Good 33 58 72 7g AGRICULTURAL CWERS - Fallow (Land plowed but not tilled or seeded) 76 85 90 92 • I� � F G �� G� RUNOFF INDEX NUMBERS i'IYDRO! OGY J�/IANUAL FOR PERVIOUS AREA P L AT E D-S-.s�� (' of 2) A t • ■n • H ®■ U ■U■ ■■■■R■R■R vv ■■R •••••■■■■■■■ RR■ ■■RR■••••••■•■RRRR■■RR■■•■R■R■® ••• ■■ ■ ■R ■R ■B R R■■�ori •■ ■ B 'R ■ ■R■R■■■■ ■ R RRRRRRR■RR■■■■■RR■■■R®R■ 4111 • ■■••R• 1 1 5 ! ■R■■■■■■■■■■m■■■RR■R■R■R■■■RRRN 9 ■ ■ R inn•MI B•NN■■■■■■■aR ■ ■ ■■RR■■R 4 _ ._u:OONO� W _ 000� 1 U , f . - --ate I , 1 R■A ® U R■R■RU en imarr .- IN g II owstis.m-asimonmonnornian•• ■ ■V�■O1tS ©.a/1R® RR/IBlarA■OV - R■■■®■■a1 ann. ilr.ailEnranr-onr-Sal•••••flisloommo• 6 R■bbr ;:.i11■1 ��■IJ■r' mid■■■■■■ ■aORR ■■l 8 • R■Urr'a r,1N na nRRRniranallitlaO■R■ORB■■R■■ R /a1r Py aint ., .. llinir R alli ■■RR■RRRRRR E tralarttanna I1/ ilwa■■■ G7. w► ii.. iRRRr' �f■ Rr .�/R■RRR■■■R■RR■RRR■■R■R■RR■1 ar na.R■I:rM{LL2 MI r d U RR®■RRaf■mRRRRR■■■■m■a ;'I A r, Y ■RR ■■■■■ UI • Vio' ® i V I' m■■■■Ra S aRO m ■■■a U � ii oi • 7 •i■I.Rf.9f flU1®%■ RJ■■®■R ®RR■RR■R ■ ■■R■■RR■■■R■■Ru vfs ,?s■am9a■m�RRmmRUR®■ ■ n.. v 'aR■Ja•RRRRRRRR®RRR■■R®■R■®RRR■ ! 1 I+- a '1■■ /nrnn'a1R► ®UO/RRR®RRORR•■ROR • O • larefARru/RVa •R• I ■R 1 /i•■■I la■l V1RI1® R■RRR■BRm 1 i I! nR■■■RRR1• • R■RRR■■R ■R■■■ Z' r/■■ Im1■■_ C7 ARWARR •• ®■■R■■■RR• • SEMIO.. ■IrAIMI �R■RRRRRRR■■__■■ m 1 i 1 1 r 1 . a■ I■ r/R r, ApaIRR ■R■OR■®■®■■■■■RRRRRR■■RRR■Rm ■■n aR7JR■ r■■■ RR ■■R■RRRRRRRR■R■RRR■R®■■■■■■■■■ 1 •rnaRf•/ ®•••••RRRRR■•••••••••••■®■R■R•• lL ■■/ N■ RY .R■AUBRRR■■R ®RRR■■■R■mfmRRR■R■•■ O o •'iu 'a /, I 1 I llin■�O■ oeR•R■ ■/ 1la■ vu■' i■ U■■ RROR ■ ®RR■RR■■■■nn ar1II■Rfal a UURRR■■ R■RR®R ■■■RR■■ ■R■RR■R■R■8■■■■■■■ UIMU a■ifilI ■■®■■Rf■■■RR■R■ 11 1 1 I 1' 1 1 1; ■■RR } Iaa■IaW/■O■ 1 1 1 ■mR ORm■■mO■■RUOR■ Z • .5 • • 5 ri/a■ri■l Caraam■®■ EV P •••••••••••••••• ■•••••••••••••••• •••••••••••••••• , • ■ ta1■■r/C?r1■■ LAN USE OR OELOM ■■■man■ •fl • 11I■■I■]a000■ ■UUUUUOO 1 1 l 1 " 1 ••••••••••••••• 1 IIAL■ F[ iatR RR ■�RB■■■R■R■RRR■R■RRR■R■R1■R■•• I , 1 U 1 aAII■S/1®a RRRRRR■R■RR■�■■RRRR■ 1 5 • 1L as ■11■.�laR■ RRRR■■■RRRR■R■RmRRRRR■■ I I 1 ' l I ■■■a Aa•■■ as ■RNRR••B•■••R■R■■■Raa■RRRRRR •R• LL! IMF ■:Aal■■■■■ ■O■R■•R■■■■OR■RO■■m 1 I 1 i aaaa0■RR• IitIHU %SN■Wd , - • T GE ,IWPi RVIQUS,9 . � f aam R� ■a ■R P E ' flT l■■■■■■■R■■■RRaR 1 ■ ■� U O • 4 • • 1a 'n/l■■■■mu■a■a■■aaalaxm■■�■aa�R ; Ra®■R■■o■R■ ■ l■ a■/ I■■mRR■■■■■■■■■RRR■■R■■■R111a1W W•MR■R■R■■ 1 ••••'1•R■■R■■••••RRmRO••®O ■ I 1 , ■R■ ■N Will••0•■■■■U••••••■■WRm ' ' , ' ' 1 I ; i ■R■■RmRm■ml uluSR■R RRR■■ ■■RR■OR■■RR■■®■10®■B■ROR■R®R■■l ■ 11■/l■■ ■■■a■■R■OO■ ®ORRUR■■m■RO■®anU■RU ■® . ■11■11O■■■■■m■■ORO■■■■RR� ■'1■1■l■mRmOO■O■■R■■■■■OO•••• ■R� O■■■O ■B l ■a■■am ■m■■■■■ 1 ••••••a •3 1a111O ■■■■■ ■■■RR■■■■ ■® 11■■■O■■■•■■R■■■•••••••RR R p arc p 11■ 11 ■I1O ■■■OO■■■■■R ■R ■a■■■a����pp 1i \t ! : C 1I ■1■ ■am■■■■mOOO■a■a■■R 1 : I � , ^ 1 I 1 ■a■■mROOROORRRRO F i , IMUO�■ m■1a00■°a ov HY DROL0 ey 1�1MANuAL . ' , , '111•1•1•11•••••••••••••••••••••=11•••••••••111 '111•1•1•11•••••••••••••••••••••=11•••••••••111 111■ ■R■R■■RR■ROROO ®R■RR■R - i i I I; i 1 1 I' - -; r i 1 . UIIU .R U ■■000UU U R■ ii i■■mm .2 ■ua■■mRm■ amanno m■aall RUNOFF COEFFICIENT CURVE I • U••••••••••••••••••••R■ ■I■aa■UOUR■■R■■■■■aal■■mR■ml SOIL GROUP -C •a■■■•••••••••••••••••••• 11••••••••••••••••••••••••••••••••= COVER TYPE -URBAN LANDSCAPING 11■RRR■■ORm■■m■Rm■m■l AMC -II 11•••••••••••••••••••• (RUNOFF INDEX NUMBER 69) 11■O•••••••••••••••••••••••• IIl■a mR■■ R■■■■■■■ O ■■■Om■■O■■■■■■■■■■■RO■m■■■■■R■m I a Rni■■ R ■ a �■■■ m ■■o■iiau■■o■ aa ■ ■ u UU R R RUR R ■m■■R■ R R ■■■■ RU OR U a a i • 11■■ O■ R■■ m■ ■■O■■RRRRROROOORRRR■■m■R■mRR■OW 1■■■■■ ORO ■■■■ORRRR■■RmOmO••••ffill05■m■m■R■■®R■O■ l■■■■■ O■■ OOOU ■■■ ■■■■■■■■■•O■OROR�■UUUUOU■ O■■UOO_ NU •••••••••• ■ nnfll 1111.'..p d RAINFALL INTENSITY IN INCHES PER HOUR � Eg 0 u■.. mail..■■■■ u■■ ■u■®■■■.a.■o®...■ •■u■■■ •••••••• 0 0 I 2 3 4 5 6 PLATE D -5.3 • • • LI_RAAINfAI 1 INTENSITY-INCHES PER HOUR MIRA LOMA 7NURRIETA - TEMECULA NORCO PALM SPRINGS PERRIS VALLEY 6 RANCHO CAL /FORM/ A X1 171 O DURATION FREQUENCY EOUENCY DURATION FREQUENCY DURATION FREQUENCY DURATION FREQUENCY r 0 MINUTES MINUTES MINUTES MINUTES MINUTES 0 10 100 10 100 10 100 10 100 10 100 ( YEAR YEAR YEAR YEAR YEAR YEAR YEAR YEAR YEAR YEAR 5 2.84 4.48 5 3.45 5.10 5 2.77 4.16 5 4.23 6.76 5 2.64 3.78 6 2.58 4.07 6 3.12 4.61 6 2.53 3.79 6 3.80 6.08 6 2.41 3.46 L� 7 2.37 3.75 7 2.87 4.24 7 2.34 3.51 7 3.48 5.56 7 2.24 3.21 8 2.21 3.49 8 2.67 3.94 8 2.19 3.29 8 3.22 5.15 a 2.09 3.01 D 0 9 2.08 3.28 9 2.50 3.69 9 2.07 3.10 9 3.01 4.81 9 1.98 2.84 C 0 10 1.96 3.10 10 2.36 3.48 10 1.96 2.94 10 2.83 4.52 10 1.88 2.69 3 11 1.87 2.95 inl 11 1.87 2.80 11 2.67 4.28 11 1.79 2.57 r 12 1.78 2.82 12 2.13 3.15 12 1.79 2.68 12 2.54 4.07 12 1.72 2.46 13 1.71 2.70 13 2.04 3.01 13 1.72 2.58 13 2.43 3.88 13 1.65 2.37 14 1.64 2.60 14 1.96 2.89 14 1.66 2.48 14 2.33 3.72 14 1.59 2.29 15 1.58 7.50 15 1.89 2.79 15 1.60 2.40 15 2.23 3.58 15 1.54 2.21 16 1.53 ./2.42 16 1.82 2.69 16 1.55 2.32 16 2.15 3.44 16 1.49 2.14 17 1.48 2.34 17 1.76 2.60 17 1.50 2.25 17 2.08 3.32 17 1.45 2.08 18 1.44 2.27 18 1.71 2.52 18 1.46 2.19 - 18 2 3.22 18 1.41 2.02 19 1.40 2.21 19 1.66 2.45 19 1.42 2.13 19 1.95 3.12 19 1.37 1.97 20 1.36 2.15 - 20 1.61 2.38 20 1.39 2.08 20 1.89 3.03 20 1.34 1.92 22 1.29 2.04 22 1.53 2.26 22 1.32 1.98 22 1.79 2.86 22 1.28 1.83 24 1.24 1.95 24 1.46 2.15 24 1.26 1.90 24 1.70 2.72 24 1.22 1.75 26 1.18 1.87 26 1.39 2.06 26 1.22 1.82 26 1.62 2.60 26 1.18 1.69 28 1.14 1.80 28 1.34 1.98 28 1.17 1.76 28 1.56 2.49 28 1.13 1.63 30 1.10 1.73 30 1.29 1.90 30 1.13 1.70 30 1.49 2.39 30 1.10 1.57 32 1.06 1.67 32 1.24 1.84 32 1.10 1.64 32 1.44 2.30 32 1.06 1.52 Z 34 1.03 1.62 34 1.20 1.78 34 1.06 1.59 34 1.39 2.22 34 1.03 1.48 H 36 1.00 1.57 36 1.17 1.72 36 1.03 1.55 36 1,34 2.15 36 1.00 1.44 m 38 .97 1.53 38 1.13 1.67 38 1.01 1.51 38 1.30 2.09 38 .98 1.40 C Z 40 .94 1.49 40 1.10 1.62 40 .98 1.47 40 1.27 2.02 40 .95 1.37 73 (/) 45 .89 1.40 45 1.03 1.52 45 .92 1.39 45 1.18 1.89 45 .90 1.29 50 .84 1.32 50 .97 1.44 50 .88 1.31 50 1.11 1.78 50 .85 1.22 55 .80 1.26 55 .92 1.36 55 .84 1.25 55 1.05 1.68 55 .81 1.17 m -< Z 60 .76 1.20 60 .88 1.30 60 .80 1.20 60 1.00 1.60 60 .78 1.12 0 65 .73 1.15 65 .84 1.24 65 .77 1.15 65 - .95 1.53 65 .75 1.08 I 0 > 70 .70 1.11 70 .81 1.19 70 .74 1.11 70 .91 1.46 70 .72 1.04 D 0 C X 75 .68 1.07 75 .78 1.15 75 .72 1.07 75 .88 1.41 75 .70 1.00 m D 73 0 80 .65 1.03 80 .75 1.11 80 .69 1.04 80 .85 1.35 80 .68 .97 D D 0 77 85 .63 1.00 85 .73 1.07 85 .67 1.01 85 .82 1.31 85 .66 .94 � a 0 SLOPE _ .530 SLOPE _ .550 SLOPE • .500 SLOPE • .580 SLOPE _ .490 z 0 6 W JHA ENGINEERING, INC. JOB "" A Civil Engineers /Land Surveyor SHEET NO OF 41921 Beacon Hill, Suite A CALCULATED BY ■ DATE Palm Desert, CA 92211 • 760-779-0657 Fax 779-5143 CHECKED BY DATE SCALE /4 ! �6Ua- ji.5 r"4,v e , Er = 3269' 4 __ _3 , a / /B9 _ / /60 � ,530N (34494418) .z = .._!a /I7 /i7 __ «SE /v -r ,e 7 (;50/c 74e "G a /aarE D/ - / ?JE ll. 2 Tear /0/"iil = /. e / Or, , 3 , 7 6 Z yea? n'n a 4-6 'vAr. ¢3' , U 3 ytgr aPnvJ%! s /j, ea hr, 51 73 /O)ct</r /Ory>a/ " /hr. # 77 • 6 /fl q ir. 'C t /4 c t 3U /4 !' - , 7lv Qz ( awta),_ 4 /-5/,✓, J'3X 3,a9-7 7.9D.(S /J'/ ,l ?7 f s 3 . 5 ycI6 • - 9 z (bam/h) fi 0.X6 Y. .'3 = elf 4,5'GX•4,5y5,f9 s /9GFf Qr. /0(4)ovi ;c Q 2,310 (7/ X3.o9 t i7(/ ' 5 2 5 /cR' &fX - °9= 5,90 75 Q/a (00/,9,"/,) t i» •,91 / t 3,09 = ¢7cr 5 . 8I X • 73 X 3 = 1 9ec,e5 /oo ( /Dmi/ (); M& Y 71x3,03 = g 29 < 3 ¢hX, 142 (ooni /bi f? 1 X,62 X349 : 7 494.45 /.30x. ?9X3. a9= 3./7 cuy790 ficzernAroN 2/1r A- !7, 40!) n' ° . 2 '73 Ga__ d»'a ke s v /7,44 b7ic3 Gu F; /1 4 04 1 & 41 /1-# 1 * _ c tc.of -s 8 703/ 34Z d • .0 .,.. /9 . yevr / X 3bJra ; 4 39241 s / / `loa t O5 4x, ear /r 9 e K 500 7/2 /4-* ra o ' O /o 1 v. /9 /OUyedr. 3,/7A - -6c //, 0J/Q35 - A9 z , z6- '9 79- • `� � � �' %�_. � ; - M . �-.� I � ' f _._.._.�._"'___„_�,�'�.� � '� �—��_ � °A, � /r � � �'/ �Ji�s'��/i�� �a:iaes` (� / ,I V � �'' � a , � / , � � S t /� / � � � S � �. � ., � e � � %� j � ! 1,.1: � �% / � �. �� - o iii li! �� ,% 8 1 � � � ! � ' I I,: � °��# ��- ,� � � � , � i i' j' �) p ' � '. i i i z a ' � r � � K ������� } y { �� ; �� � % �/ � / t �� ���� ��-'� •�� � I � v��� c i� � � � �T !- _/ J„� � _ � � �3� ,tj � � � � � " � �,,, . .; �.. � � �li w ° . % �s'� �- e � y .� `A:. „w'"� ; .�1 ? , �`�o �" i �- w °� / `� ....,,)) u � �%;- /; � � o %%/� f�� ,� � I � � �' � : LL � r _— __— �� �� • . � � � � � � � � , � � � � ' � ' � i ve �bii. `�+��T K t r .� '# r � '' ;N .�' i N �� u l�' �' k:S 9i ei ° a 2t ,rd c '2 n ,_�Je�r3r _ � '$� ° �% t�i ' � I ' . � ;o , ' ;��� � -,.�8 f� °. ����� �, +� � �� I _ � I [ nY i v I '�'� t ��'k�'k 3� /9 i � �+�4 ���� i ���i t ����,� ,. ,� Li �j �;� i i � P " q i +}9 I� � � � � �i � .� 4 I °I � � F � `\ / / �.�� � . I ' I � �' 1 ��I �1,�� I �—J � � 21 .�IS�Mi �I I I �I .,' f � � ' ILr.___ � �/ I l � f � , I I1 I I v ,. ��� �'3' � /iii� �� � �i _x ( y� �i� / ('i E . , �� A 3 / ��/ k �'� � Y` � - i . � U � � I . ,' �`� �/� �/ ��,�8 � $ A'b �� �a �_ ( � �... 1 � �` � r J � i x,. � � I .- r ^ .r"_" 1 � f \ �� / �// ^ I' t .' 1 I�.�. I I ;':_- .i � �', F � � / .�=i'�� 4 �.�,�- .-; I � �° ��� r � ti;������ �� , � — �.+ , r � a� � � � 1 �-/°� �� `" �� , � t I� I � I � </ �_ � / �_. x �+�� �� � � '� � � - y �� � ����. � ,o- �� ��"� I �q i � �' � � �� � �/� �`\ �. u ��{�i '�? � ���� �� �' 3 I � �n��� ��✓.�� � i�i � . `_� � � v �� i...r�§1 r� � ��k �� � . ' l � � , f I �: ° �X�� �' � � '•�� � h��' ro � � nz � � �� � ��i . � i �� �{�+ �1Y� Y �` ( . yy � � ;,� t �f sy`�?�' � � '� f � J � � , s l � i y' aj F ts '� 1i �.3 � u a � �-� �.� '4t i i .�lr mi _ ��d��� � �fi, A � � �.�) y ��ay„ax�"y`S�1 � � �1 ° ..i�i ������' �� �i :� J � �"c r l! � > f" ��1 Y :IV � a � � \ � �� 3� .61' � � - N f� Y � i xc i!F �v rvf - , �. si �, }rt� � r✓� I� � J �� j�� �, � � I �' : �, � { ��� � s � �µ'�4 � E �€� , � i x rta a � '� �� ' I I � �� ��8 � � �,N '���� "\ � v �.s�� � � �"z�f � i�� � � � ;' � �`� ' � � �1 �� � '' A �� .' . / i i E�i•�� � F �1r�. i i I � I � �k � � C t< � I i � �tz� E . { � � � _ � �'�'.I, � r � { (/ ` �1 7 � � i .r � ' �'Y .$ ����k •'�' k-:@1� 1 � ,'� ; �� � � \� f ��.�t?� � i .� � '� ( ��' f, . I � � I / \ L [[ � ..�' � � � r1 � L i 1 1 ')S h` \ � ..°' 1 \�� �FY 4 P L_ �� b �l�Y' I_�� I I I� . p ; N __ '� '� ��� 1. ,�,i�� .. e �SS'F�1 V" � ��� S. I I 1 � i. ' s S �'. � rJ°)` �.A 4 "' ', o i� I 7) 3,� � ��+, � s m a_ r 'c �-.."' � �' i�7 � I �� � � t � ��. � A � ti b i i 3 � �� � � " � i � i �� I� A � �� �V l�v � �� � � � " � � �� � ` I � `�\ `4 ..� i. i i .� / .de �. I � 's 7 � �,� �'�� J i - I � :v , i r� i i r; ' ' S { � ' � � �� � il , � \ � ``�� ��� \ � ��( y / � ��'/ l %r l 1 I �� i I I I � ���. � b � � .. �� � � � r / .. , � � Z" / .� % � � � (��� t X �'\ A - / I � 1 � � X y j{ . y ' � � , � � F �,I.. �, , Np �/ �t' � � - I t x � N �. ry � - �9„ � �: , , �� � e' � � I � �!/ .i e? � " � ./�„/� � r� ����i.'� = � � \. � }� �'✓�-°i // � °� � I I � \` ID �� ' . � � ' I ti � � . �'%F's`r : � '� ; .' � �>� � i i � _ * i�t �`��`� . 'GyFP SO�- a � i ; � �j ' '� � ` ��� � I I �i -= , � `� rH -- � ^ , k' � ` o -- �.,;�„r;; - — ' f�' Y'-' F � ,j, _� � � n :yJ G N/ �, y � � '� e r -F—_.- .}� i n .. dr � � ��'L' I � �: � : fx2 I' �_: I ? t_ � � I .�' '.� m o� _ O � I � � .t 1 '� d � 1 � , � � V � . � —b-- r � `.:c z I- �.� n �` s Lv�° - i� � � o - � t � t w a y p � �v � -�-� I _, a. � � o= Z w £ / �-r r �. .. � ^ _ r �� � ; -.c' � a� i _ l� � O Q ; o o v � a • """� i _i r - � �? �_ / �r'.i .. .» ' — Z • 3. r �• N �Q , : n Q � � � � � p ; �, E U � C � - � � � d ! ' _ I ? „ 1 _ � � r 'ii b � .: D � o o ¢ w I; � r z � '' � F � � E� X.?: � � W� t �-, �t �_ - �� � .`-- � ,.�_� 1 ET''lL`"�,s` _ '0 4 } a , J `' A 1 �' a °>' a` o° '' � . i ,n'c � r i „ �� � �, _ o zA t.-'� : C , . _ _ I : N � � �/ � t � £ ., b M L�� ` 1: Q . � �� � � .-�. . . .`d _ c -� ''� ° m _ i f- � "r . —� T N �� ' ? (' Y � _ - O F � ...I �. .- s T ��i`'. c - � _ .' I '1 � O ._ f-' t --- — Y t �£ �/ N � - � i C'� J . \� :!' / N .` :, v� $ '� 1 � - f� , ! � '� 1O � S � k � � � t c � i� �` � l. � 1� �_ .� e �. � .,� � � �- i ♦ -- s � Fp i ��^s. �c .. ." � .;/ � ,:: r C � 2 �'v i - ��' , f� �" � � - > Gi ( � �' ' ¢ . �'f i � :.` r ; F �a � S- J � �'n) - t . ,� . � �� / :S 7 f J !'�.. SS I' � / � �-. 1_. 1 ' � e '_`-° rt -tf ,- � r ,_ = � ,� '. � _ - i � - �- �` �, � 4 t . �o � r � ' . � ..' ,r i I � ' c i ] � � :, v � l f ` J � r.� n rv � s o ! ¢ - � �- t � -n�..- � '-�� - s { m 'r' _ " 1 � '� "' i .Y--Y f 'T " 45 0� � � � � � /� L . .� - J 1 �r�'i.; �� li � 5 _�.r L ` ' � f - -Y - . n 1 ,t. s °` ---, � � s 'j f ` ¢ ;= f w � L � . 1 , 3 , �' , 1 _ �.� _ 2 r -�� ' �- . i ` � � 1 m � - s '`f 3 1 - � ,^ }_ /� �_�_ � �- } - � . � W � L . �� m 1 � � � r � �a � � 1 ` �I � � T .: � ' � / M � tC� �: i j' _ � F / [rt :: y � L � ! � +o r > f C jH f N p[ �� � � (. -� r , � ���g' 3 c ` � ��y r.~ � ,_ �,- i x at��r'�� �, `� x i � o � � ' � ' � (�l � 2 ��- r— y • � . � �,j i . s i f — a� 1' �� / � V� ) _ 1 { � �.. ' ( `: ' _ � / '^V .. - � '. / Y � 4 � T f � � �� a �` i � - 'n � Jo t �� r _ ..-�-� '! i � l.' I s r '�? i i F . I '. t .: o � i . . � ,' 1 � s l: � 7' � ' c _ a . _�� i � . ' t I i �_ .' � � � f �.. � �� t�' = i��i i -' � ., i .��� Y ' ���c ,. T ^' �.-WS � 7`i �.IT j�. � --3- t ( , �n � � l f : � � . f ri ;" gj ;. ft -i \. `s;?i ` i" �Y�'..{ .:. �._ R � 3 �-+ i % I i �� � � " � . , �.,�_ � _ � t,�=c � '�'��0 1 i. 4 � ..�_ ' E. 1 � � � - � v� .� � ` ' -' - L 3 f: �_�`� i P �, � , a » .� � �.,.rj-� r > i y - {' < - l G ' r�-s.�s--.. J � �;�i �v c �� Y^ ��� ����� \�::.� �� /](;iyp 1 ,_ I �� > Z �° r� l\ f ` � � -- � I . 1 £ d=/l r� 1R 1 R � � ' J - �F J _ ti - - _ - � :;_,�� �;` � '� � ; � T/ ��' ker ��.'- _ i rx � �' s- �� _ Y�.� . - � � �r r � _ l _ t r . _ � Z, __ ; Ui. t , � .� y / e S �s � . 1� ' � � .:' � ' � � �� '...� � ,m �0 r ,� Y '1� • iy'�`.�� �l "'� Q si - :,z { � - ^' ,�-�x.- � : g �� ...� �� ;i� . - F �:. s �.-. � ' .` � p � y � �� � � r � , i � y � . 3� 4rvs e _ l 2 � .� � ,.? � . � J� f ..V l ',.� �` \�. ; oy y . a � j\ 1 L N 1 ST..' t r � :. � � � � _; � t � � `, � � { l s i .: 1 't�'' s. � � � : -`I' `�' it _ � l �,�._ ... � L`i'. �i. '�'k py � � F : x t� G ' i ';`�` , r-� IJ , � 7.,� i ^-,� 1 ,•- �� �� •t i . . � �J`,''i'r' � �tJ Y� �" �.S '' ' ;. �r t a . -� ^ ` � �.� � � .-Y '"t _ 1 �e},v <-� �, �� ti � � . � - �.�.;, � :. -r� T � I �A Y' � 7� t � fl'T K� 1 \� y J'``� : T- S�= :� r .- � ..i1'y � �S 1,tt ` `i S�r }. �� x u �e � -.c 1 i i] 3. �w ', ,� �-,� l •� <f � ,¢ � , I .< ,�„ �.^,o � . � t �`�.��.' t i �-�� �� . _' � _, � � �.. � .�„ � m �r . i�, k � .:c--.. 3 �: �t . .; � -� `E - i7/ � ��� b J � � � - Y '^ �,.� � . - � ; ,. y,�{ ,� � �# ¢ � .� � . --�.� ')" �t � � i � i ¢ �� � A � F � i. : p''.' � i.lia.'"� i .l 2 . � S „C . � / j. � ��. t � _�" \:--a-� z �T�r � �'°' i �'L. � �' V � �/ / .i e . . � l ._ �..-...�_ � ���� � .'�l S -s� i' zf ��., � % .i�`� _�_^�1 o Y /? /' y s ' r ` Hi a - J � f F } F o t -: H 9t RSE }. �,... I -! � � � r � � ,�, � • JJ � � } 'l - 1 1 it r �r� 1 r j ': ry � 1 t I 01 L' d 1 ` V U' I 1 ' + I . '. r ' r r Hr� - I Rti ��'-� f r , y )� nR 1 r J . i. • i t r a {_ + 44 ! r J 1 '{ r I I _ L 1 �� y ,� Y7r C �•. � 1 { y s r l Y _ x ('O y 7 y r. �j ' I� �F -r. w y � kl, I ' ' ( a a o . d . ,k aF . ! y } � r.('r Fx .M ,a1 t ?<"‘':41.J.,1;',4...:'`.1.'''':2 -15-11,' r .. ,: I - . s [ :Ts r hl v u r 3 6 A, r l > i r fi t` } � " '7r��1 \ 30 � f � I } ��' a ▪ '�li y ? rlQ � r ..nq rl3 nl. � mou n�[dll ._ '� I 1 \ I .mn rr + ' Y,'''cT ` { `7 -I � , 279 t r y.- r l e l e r � ��. l ' { l a o[ yi < ' 1 � ! 4 � { T A r � � ' I rr � I it y .r�n, � l n . l k , s y l a. { r � r A � M1A .f r r 7 I A r 1 E. I ! — 1 ! 11 � '; e S � I A � 'b4 � �5�lrn I rr � 1 t I :2 SI r it7l � a . L— 1 7 ^e j ,, , r u u>,,,c 4 9 • ' q�Il. I pr I I r - v E v �3 n7 r r r� r r u � r 5 . � r - -- ( y f I r 722 I _ . 1 r >. : y k i� -.1 r 20a ;i � i r .,. , s ` S . I „ 1 A C � r mI 9 ? 6!r r J 14;x‘' '� 4r r r , ' F ' !1 ' F t M i � 2 ! � ,,I r� VI �. I ri - -.' i " A ' r i 1{ �r 5,2 B ' { 2 r l 7 / , I r a � J i . �i r.. '^ u a .. i - . ) , fi r ii. j �p�p 'y ' r r All Y J b � „,,1:2,,..,::,i,-,..,,,, r � I o ,1 1 � I I ly T \ �— q / • `,1, ! S i r r YY u L � . ,.VAA i i : �� i>,--,-,'..v,,,,, L e P S ^ V rV ;'� I i l� lL. r r Jr r R } n M1 r 2 ; r C , f. I �Ir \ 5 ° � t r ▪ t ! r ''' �I fr }� I y _ 9 %: < .rrA'1 �-, a �♦ a � u � rviw. � �l��` f �� �.�� � r .. _r.,lr � R� { I7! y I T. � � y u�r ' .) rN.. � h r 3 9 r r � I.:4, 'tics � r a Z r � � c � -. -f o ' � [ 745 P i c a C I - 9 't ) . �. r u� I ( .i r a- r l I (, ' aM � l ! ar C� , ... � ' rl <C( I ra u ' , { c,11.: r by o ( Y 'r 4.' m 9 l �� b a;' Irr ” I ' i �' � F { , r � dr„ { D I! �' I. � r Ul 7:r �'I.; 1 i � w3 m y � f t 1 - - I�� � . 1 ��' I r ,, � { r- 1 '''.1.51-.1i,;; � �. !: {� � 1 n; 1 ! c {yy f( . i \ 19 1 _ t r r ,. °` �,wY ` r V r I' I � , C 7 c -1, w 1 � � �c r 'IA ' i d' l r H 5h C -7'' r 11 ; li l l r T25 t r � o ' r E nu k, 1 ,, - i l'4 �Nl _ A Y'll Jr- f I 1 l e rl� Sr 257 xal� r } .tl I� 1 I r 1. a s ''..L°.. . n 3C �} I'°r1 i .r S U . . y" r r •'" .. u l 'r5 6 rl n l i i ! t r r S �{ I ,: � • r o r . ..iii.„ rH�f � Y 4;9 Neb! h 4 yl Ir,vi I rft 4 �! � lti r ,25 � r20t � . T � I • ��� x " Rf ) \ r < Y I, J i v: I ,. es : • r r ,u 1%; y. ! � i r I • 47‘'3 )1:47 r t r "C3 ' „ .”-:' , ,,..:'; , :,-,:,,'1:1,.' I � ri I C I o 2r � -,. t -.y ▪ a I'', r y 1 % < '.:2-;-,:.:,:,---=.--1...,?.., i) 1• } r r Rl y 4 ' � r } L!,.' 0 py 1 �r �., ▪ r „4,r-?,-.],.. r I I ( Yt I I �.. • , I i �� �.,. ! ! s � � r 5t � � J >� a a g S a , - 1� YY J y ,r, r � ' � , G 1 G/ 1.'. ,.� 1 f - r i r ➢ � r i /•( cC m )� I u 5 Lf ( r r r I� - fJOTESr 1 ` n I G -r� v rlPF�rrl I I, ▪ P1 ¢ rn lR I r 7 Y '.../ l j l g' �'U . t (olsbasetlp NO dry ZS yV 1 A I n ) h spy r �olu e Cog O UM�'19]tr! 1 "1 q} t V+l � } Y id v r r I 0 � l �ORI r : l {• f • K 1 y ,� a p t . � _ • ' sb �. . l to r l{ � r i 4 Owii- v i i i 0Y 1 IAnIUFtt.; . 95 - . a �� \A � � I r `' I► ' � M�r '�I r t y r I r I 1 F�, 1 I .,, l H ` d r ' 4, r, r r` t16'1“1-1 �� � � Sr u y I � I t I . 1 � {,� r ° 'Ii RIVFASID6 GOUNTV o FIOOD CONTROL 1 �l '. ¢. Y t( ct 1 Y { r � u r \ � `• � y �, h Fi din r I O , r I rrav Tr , 7, - "',, , 41..,'L:4,--17 1 0 �, E V I I I . f I2 ;, f • WATER CONSERVATION DISTRICT V ' !( } 1'Gqq *+ { I F1 h s, a r r ; r r n r 1956 100 -YEAR n t t l A� i i ! K' 1 ) r 1�i fr l !� j y r ti r � , . r a I r s r Y l Y e r -- 3-HOUR . 3 ' ''' rti ' , - .>, - ,; : k;,:: ♦}9[�7 �`. R (W _. sJ.' R6 �.� R ?W "!e II "�"r '+I\ "l'ri` rl ra.' v ‘ i � I r t� rnr Gri PRECIPITATION � R3E,� ▪ A � " ! I ...., .. 1 PLAT 5.d E E- T/S J/ a \ \' . - r ,„ ,,,, • r.,,.. ir -: c: roc -:a ' , . , I 410 ET j ,::;a....; 59.r.f.-/:-C•i'l -1: •:?.?:;:i.:,,,,Y:,:iv,,,L4,-;;, ::' ' '-- : '" . lytiI.:', " :Sin . I: I : - P.. '::;., ;., (11,),.:.• , 1 :'''''' - j , '=;: :./.*'.. 1Allti / 4 V, • 74" ''''''?" ':7',4,"r4'7 '4.'7." C7.z 'C'i.. 7 .'1,- , \ I.: 6;5; .r,'''. ''',IL, 'r.' rlIng.r.,"Id.„-.; IIi,",',-.-'ll',„: :- "i . " . " -- !,; . " - "".'"'"- :',„ ,---:. 7 ;:".':;" • ' ;;' . ' ''6'.r4I 4 , , .. 1 ' ■ ', '...: rt" -,,,I,;;;.:„,- k ::,-:...- it.:;:,,,,-,‘.1. --,.:' rrN rr:.: '• '.- ...' I r'''''',.' I I.;.".: ' - •I ' "" ' ' r'-.1.'' r' marl '4-111711.47iIII.TIPtic-1TIE:1 I , f"i :-;"•'''' r .';'"I ' 1;; fl'I'4';:'''Il It.Irri.,)ilIiIIri.j"-T2AII.4:.:I"I; I ' k ,:, k: .:::.:6:iltk,),•;?,,,,-; ::::%1,...,_;24,.., -, : .,,• ,:-....ki 1.:....:.?,-,, L \ T •-.-, - ,:ii.,--,•,,,, . „: ,..,.. ..: -, ,:-,,...._,: ,f.i,,,it.tu,,::,..v.i„,.}..,-.:. -,,,,H; „s,,,,•..p:-,e,, I.,":‘,„■ ” II.L,.. '-• 11/4—!:4-7=. :.,.. ,-,;;;;;;;TTrtxrrIcrI‘gg;ii'IyI:; ''"I',I,j- 7 1 1 .. 1 :te r ' r e ," ;;?. T,;::::, a, :::: ,):3'Lla IP "rt:'''''A'(1 .1. ): -- :::!:1: 4.,..•, :-.,1 ITI'LLtter 1, h:-.:r....,.12.i4i;;;I.:X;i:LY;"...uji..?:::;-,-;::: ,i,::-.M1`-,::.2.1.,.:;::s„;;,:4' 77 __ ' I \ : -,- I .' ,r. -.7'..i'•:7I'';',II.. S ;LI.r. , ..: I ''' ' ' 1 ,.;' - ' . ,, , , .i.',,r-T r■r".;=-.."""61811•:".I. -ii , i 1,- .,./,;*c•-;4 4 ... ', :70: :r ;',-fr7.-1;k:';',,-1:-..]: L'-::,:-:rn : i: - 1, iY,', ,::,1:,.. ':'' ;la': :, , ,Ii,!' J.,...! '• /,' ; . : I -,r;1;:..i.dil,:iiv :: ..1::::::' - ; - "1 4 , p L? ':,_ .„ ....! 'V; im :.,' .L.,, : ' - :.C: 7 -.: 4 .i77777,-17' :,.:N. ' - '--, a5 _:-.-.- ?%..„ 'Litt.'ill'1--j firrn;:r i c i: - ;. -- '-,:': :4 .;',..;: 4 :: - '-‘.'' ' ',1...,''T'' .-,' \ 1::: l'i &I' :4,4:::,_::::i,,,',11!:::: e.rk'(;'', .. --',",::,':''"":: ci ' r tiL:d.t.(;:::::: I" 7.11.:,:.:V';',:.",■,- 14 1H.' 4 ;" 1:: ' '.::;: -- I: 1-1 I i ' ". -L' i: 4 .; : >!.114-!.::::ii[i.'1:',i0j.:T.(1 'b.' —1,-.4;1 r :, 1-!..(:12- 1:-,11::::','„'-,),,-,-;1:-.2' '':,(:)[11/4:'-J.ta' tri IT Yi ',.:/,-5 j:-:.::;:::1'1,':::i,;;;ii,„14`.7a-:::1-1.1q);T:" l'afiLi!,':''''''- C ri• L 'i; - ;:i<'.:('''' "-- :4-.„:';',7:'-:h:,,;;;;,":::,:„' `;;;''';:,7r;:ci•-:1,-;::.;5":1:'7:',. \ti ,. '. 2 14" ..-TiK•kv-4-::".'1,::16:a4.i.: ■.:. , ar: :I: -:::::Y•")...:1:1:::::::::,,..::::::47'.-.cii;',::: :: :-.)::',-.':''''''l \ '::',11, : :, 'f'0 , ' , ' 1 1:"..tjtc,-.)''' .. 1, ir'al„ -, - ' 1 :;:in : : i al , , : li , :-.... r R-,W'4:,'. h -- m : - '1 1/41-- :',1 ,- :.1 . :' - `' v., -- -;:,:! . !..k.,:: - :-1:: :-..,-.) - \-9-:,-;•-'4., '7-.q.:f.,'21::''': ,, `."''.;•::.,..,..':,'-,22:,,,,:"..7!,,,,'„..?,...:/: i,..;: !. ,, .,13,:,....,:■ 7 ,!,,,k „: , 1 3„.: : . r , -- .. „ 5: ,, ) r . F.1'7 6 '''‘.7t3.,tt,.,t;:g6I;f, c;I, , :'•„....:61.::.T.-.•\l'",.,.-"6 'Ill'ilrI ri iI1'',.-- ' , -';',;:" '1 I, •. tt'; -';II.- );;;.:4 \1‘1''4:‘,Y;,1';':" ;.:''.',,I;- c: . ');::' '''-):.-- 'j'11:,d'''''.., ‘I'V.,::;,'"---,::::::,,..'i:: ,1::,.,„...,,,, li( \ i' p.c.: :,•,-(., • ,z, :--, 't ',,t`-.•''' !--,-.:.;:::-.. , 'I' ,I I ' " I, ; „.}-; I ' r .f- -,-- II ../ - I...II' I ' i ,I , I 7.^; I. ;: .!„ ...;,;.,. ;,, .44?t,.1117,.„11-2„ ,I ,.!',/,'-;:4.71,5:4.il ily'..1,]!...-.,-„TT-71i, ::: j.....:". • .. t - C - , 4a21..1‘44.1! .--± .1:i;I:f:trj. : -:'-:;-,-, •:, ', .',,-' ".-i:2" %.:ik ,...- ,1 !. • .... :2 .---- (4\ Y.:, 7 '1/Nic"417::)':7.:',“; 14" hi . . 1 - ::C.:. ; 1;;; .7.„„rb"..1.'%.4ril'7..:4A;(,', 17-7,7.4:, :',/:,-";1;1;;;';', 7:''..;."4:, . 1-;'"i'!, ' ' . 4 '{S,, : ' :4 :I: - . '• : : '-,- -.,.'.1„4'2!...t.:. ''. .7.1' r:4 , fr y- . '''' ' ::H " 77 a'' i . -L ' I TA. :? \: :" ',Is.; Y''':',-'71':". '"1"1" ::I-:" .."-d-,,,Yi."2,' ?;:' ‘i 'I.,. ?"-' ". yI'rcIPI. 77_, r , A IIII' ° ' I R rIrrilo 19 .,,, . 7-. ,,] -, , a ,, .....,.1,' -!,-....:"( ,...,.' I; '; ,l,„ '' '..; 7, .,,;/ ',I ' 7 k '3 ' 4 \ i',,‘' , ; - \ ..:: , ; :11::; ':, :.„: .-: , ''''.7a7,17.4a•771Y ::# D l ;_ i : 1 \\ 4,9 :,.,:".:a .4- :""), , ,„ , .,. , ?:,..-1:::::::: - ::::: ,t,.; 1. t. ,,a s .:,/ i i :. ..)::., ' ' „;.ci - ; 47`-,4, \:: :. „: r:: . (As'...-:3•.> . ;C 1 '.4.T - .. \ '...{.--4 r' .Y. - y - ( 1 '''.: C - . 777- '1 ';‘ I 7 ' 77 /' ' '.. 1 _'''... . ': i' 7- , 7a <1' ''' a 6 ' ' :.■;iii . .":./..;, 'i M ,, ,...;,`..'")..; - t•-i, ',., . v : :•-.' I , ::: t'e,' "• 1 K : k' 7 1 .:' / . ;':',0 k • 4 N `;:- ; :: - - - ',.-- 4 'IT ':".- ::' :,,, ,'"-' i . ,1,- ` \ ').'-'7"' I ;'" I ,I''' . '''," .. ' .;' '',-; "ir ' : .: ' r" I -''" •'.4'I''''.:"I:IIII '''''''41.1(!-'5Iffli..nii` " 7 '; ',./. ';'" . • :1, ! I - '',$.'..IIIV.`1-' ■• 't.tii,r5),(..,,i1-,'•:*0-c,-:!-,;:d4-,. •".-;..,:;? --i-f 1 ,,.;:z"--' :011:-'-' '''g -'':f- ' . --.-,,,,:- !, : ---, ...-: .,, .:- ,/,,:;;,...,,,„:,, - „fry-. —, 7 , .. , „ ...,. ,..., :-...,-..„;.:,,,:,,,,,..,-;....-:)., :;,yty.,2,,,s,•;-:...i....-tz,'*oxe.,,„:-'. cd •. it- -.,,, i' .:7=± ,,. . 3 t ra 7 , . ..'''' C:, -11,„' 4.-',...77„..1,,,), ' n ; ' L=,',, 4 ,„ c. .„,,,, ? -71 i - ' 4 II' L r,', ', ....;.. '',.rIr ',.,`,.;,/ ',,,.2 .''.' r , 'I:TI"I;',..:', ( RIVERSID ' 4 .. ; V: i ti, A ;, " . T.1? \-: 1 ....:;.: ° P P 0 ' :rfr,f, - - - :;,,,::iix,,),0.1: - .14;?::-:-. - ,,,e; : 74; Y''')I , I ',„C ';' .., '' '4' '',1';LI' I'C " .1 " 1‘.i . I i' : "''''''' '''' • • '1"' .''';';';',.-7.'1-1---:;71:- 1 'I'rl'''-',-'-:''fe:I'l;II-- . ''..,.. ' '. INN\ ...... i w A :TA T PA T it60 ATE , . HN , o s r Eui i R c 5 T . 4 :., . -,•...,) ...■■-j'..:/'''f'/C:ati?..,;(j. 1SC! a, '1 ..'").3\r, pl:1 1"i 764 k. • ,:]( ( 4,'":47, .- riI-I,',I 1 " :.',,, L `'1,:: . 7 ', ':. ' . ''''). ‘7' - ?. /- ..:Ef,:i-, txcluzir ._ .. \\\ci,\,„ •,. • ,,,,;,:: ,", vs ,,,;-, .T18' 't . . 0 ' .' ''. ' I 1 P 1 ? . !kr „, L.,■‘,, ' n2E - 1 1,. a I /,,,, \ ,_"",-, " 42;:!9:--'''iir:742-4,1,., ,,-,,,,,,:: 1 w :: , :Sr:I":,,i;“:7.aw'r', :A•- :. t S' 7 - _ 1 7:-/,5 c-:-fr : 1 • • HYDROLOGY CALCULATIONS• KINGDOM HALL+ Using the RCFC&WCLI Short Cut Unit Hydrograph Method ' Area Oeslgnallons Area 3 north basin 4 TFIA Area Drainage Area (ac.) 0.62 Cod bme(minute% 15 15 15 80 100 Yet Storm Duration Mrs) t 3 fi 24 Total Precipitation (From Plates F3 54, 5.6)En_) I6 1.90 2.50 1.50 ENGINEERING. INC. Soils Group A AMC index II Payoff Number p4te 0.4 I) 32 Canstitfn Clad E^ -4 uva SN3 Plato E6.2 Pervious Area Loss Role )Fp)Iinrur) 01 (AMC II) y "! Y' Percentage of Impervious Cover (A')( %) (plate 66. 3) 70 Weighted Average Loss Rate )F= Pp41- .04If[nthr.I 0. (used tor 1, 3, and 6 hour storm, the 24 hoar storm uses variable maximum lees rale per plale EI t(3 of 6)) Low Lose Rate Percent (%) 93 Ratans^ Basin Percolaton Rate finPoe) 2 (maximum v ale uilhoul percolation lest also used for drywall pe¢plalion vale) Percolation is taken Incrementally, Basin volume le calculated using the "truncated pyramid" formula, a more conservative estimate than "averaged end areas" sometimes used (Drywall Is "zeroed out" by reducing numbers to thee than 001, since (here are no drywalls Include% (program chohen it O le entered) Drywell storage includes 40% of the l' wide rock bed surrounding the drywelL formula (upper)' PIO( diaml2(" 21( lowerlPI (I'Qdiaml2( "210.1'((diaml2e 1..3333) "2.diaM2r0.37]3("2)) Drywell design factors UPPer sec. (h.l' 0.001 Lower sec. (R)° 0 001 Ring thaw. (IL)' 0.001 Drywell lower mar. (rOe 0,00 Upper mzx(ct() 000 Drywell Cotal(cl)e 0.00 Rel. Pasha design (area, depth) Tap ' 1050 sl. Bot.e 600 s.i. Mar, Depth MB= 2.5 Mex, storage= 2036 14 (d03)0o tomato p.11baoomlor)°0 50) Formulas vo1= (h13)'(botom Uopt(bottamlopl "0.50) area= botlomothidp(Iombonom I bgvol']II(bottom Ooo$bottom' 0.51 (values must be norczem or error occurs) Outside Input from: NIA 1 Hour Storm in 15 minute i crements ^ l lom P eriod Darnall Drywell Overflow basin Sarin Balm Time Pattern Storm Lass Rate Value Rain OM ) Flow w Outside on Period Vol Storage Storage To Relent Period Stomps Demos Vet (cO % Rain pnmr) Max.. Man_ Rain Rate Ws) Vol Paanli Vol .(c Input(cf) Area Pero (cg Vol (c0 Depth 01) Basin (al) Area (at) Q Pere. (c() Vol (c1) Depth 0 Vet (c0 0:15 13. 08704 0.2730 NIA 05968 0 359.75 359 .75 000 000 000 000 000 359 75 60000 25.00 334.25 011 0.00 0:30 18. 1.2032 02738 N/A 0.9291 06227 56043 000 000 000 000 000 58'3.43 81 3.97 2608 861,09 105 000 0:45 29. 19000 0.2730 N/A 16270 1.0901 981.08 000 000 000 000 0.00 08108 79161 32.98 1815. IS 223 000 100 37.. 11258 0.2730 N/A 2.1518 1.1417 1297,51 0.00 000 0.00 000 0.00 1297.54 1001.11 41.71 203641 7,50 1034.58 max. depth 8 vol. 00000 02738 00000 00000 00000 000 000 000 000 000 000 000 105000 4315 1902.09 215 000 00000 0.2738 00000 00000 0.0000 000 000 000 000 000 000 0(th 1040.33 43.35 104934 2.39 00D 0.0000 02738 00000 0.0000 00000 000 0.00 000 000 000 000 000 103070 42.95 190839 234 000 271) 0.0000 02738 0,0000 0.0000 0.0000 0.00 000 000 0.00 000 0.00 000 1021.26 42.55 1663.84 229 000 00000 02738 00000 00000 00000 000 000 00D 000 ODD 000 0.00 101185 0216 102168 2.24 000 0.0000 02730 00000 00000 00000 000 0.00 000 0.00 000 000 0.00 100254 41 77 177991 2.19 000 0.0000 02738 00000 00000 0.0000 000 000 000 0.00 000 000 000 003.31 1130 1738.52 2.13 000 Total volume lcp 3100.79 Total Overflow (cl) 10)4,58 i. • • • _of4 3 Hour Storm in is minute Increments Orywen Dryw"u Err/ell Offerer Ove,eon Ravin Beam emir Time Patlnm Storm loss Fate value Effective Fran Flow Outnrde petenocn Period storage Slrmoe Po Relent/on Period Storage C9raee ove4low % Rain (mmr) max Min Rantrnmp Ram (clot Vol (cf) Input (c0 Area II) Flom (c9 lout Dept (II) eosin Mg Aren 00 Pero (cf) Vol. PO Doom tell Vol. (40 0 1 3. 0.28 027 NIA 00074 000 446 000 0.00 0.00 000 000 4.46 60000 25.00 000 000 000 0:30 4 0.36 0.27 N/A 00910 00010 5487 0 000 0.00 0.00 0 00 54 60000 2500 2987 0.04 000 0:45 5 03 027 NIA 0.1138 00762 68.62 0.00 000 000 000 000 0862 60660 25.28 7322 009 0.00 too 4 037 0.27 el/A 0.0988 00661 5346 000 000 000 0.00 0.00 5945 016.18 2 2567 107.00 0. 0 000 1:15 0 050 027 NIA 02278 0.1528 13730 000 000 000 000 000 137.36 62364 259 21838 0.27 0.00 1:30 7. 055 0.27 NIA 0.2810 0.1883 16944 000 000 000 000 0 00 16944 648 2701 360.81 0 0 1:45 8. 0.04 027 N/A 03846 02443 21965 000 000 000 000 000 21985 67973 28.32 552.34 068 000 200 068 0.27 N/A 04102 0.2748 24735 0.00 000 000 000 000 247.35 72205 30.09 709.01 094 0.00 215 12. 003 0.27 70/A 06610 04429 39858 000 000 000 000 000 3 770.06 32.09 1136.11 139 0.00 2:30 17 1.34 0.27 N/A 10630 07127 641.47 000 000 000 000 000 64147 851.05 3546 174212 2.14 000 245 16. 1.22 0.27 N/A 09498 0.6364 572 .73 000 000 000 0.00 000 572 .73 98496 4104 2036.44 2,50 237.37' 200 4 0.32 0.27 N/A 00454 00304 27.30 000 0.00 0.00 000 000 27.38 1050.00 4375 202006 248 0.00 000 027 000 00000 00000 000 000 000 000 000 000 0.00 1046]8 4360 197646 2.43 0.00 0.00 027 000 0.0000 00000 0.00 000 000 000 000 0.00 000 1036.75 43.20 1933.27 237 0.00 0.00 027 0.00 0.0000 0.0000 000 000 000 000 000 000 000 102720 42.80 189047 2.32 000 400 000 0.27 0.00 0.0000 0.0000 000 000 0.00 0.00 000 0 000 1017.74 42.41 184008 227 000 000 0.27 000 0.0000 0.0000 000 0.00 000 000 000 0.00 000 1008]7 4202 100605 2.22 000 000 0.27 0.00 0.0000 0.0000 0. 0.00 000 0 00 0.00 000 0.00 99909 4163 176442 2.17 000 000 0.27 0.00 00000 00000 000 0.00 000 0.00 000 000 0.00 98009 41.25 1723.17 2.12 000 0.00 0.27 000 00000 0.0000 0. 00 0.00 000 000 000 000 000 98070 40.07 168231 207 000 Total volume (off 2601.58 Total Overflow Ice) 237.37 • v • • • 6 Hour Storm in is minute Increments Drywall Drysvell Drywall Drywall Overflow Basin Basin Basin Time Papers Slorm loss Role value Effective Flow Flow Outside RelenSon Period Storage Storage to Retention Period Storage Storage overflow 00 Rainllnmr) Mar. Min. Pain(m/nr) Rate INN Vu! jeft Input NO Area (sr) Pero. (GO Vol (c) Depth (ft) Bass (ct Area (e0 0 eru. Icf) Vol . NO Depth (6) Vol Icp 0:15 V 0 0 0.15 00170 00114 1025 000 000 000 000 0.00 1025 600.00 2500 000 0.00 000 0:30 19 019 0.27 0.17 00190 00127 11. 000 000 000 000 000 11.46 600.00 2500 0.00 000 000 0:45 21 0.21 021 019 0.0210 00141 12.66 000 000 000 000 000 12.66 600.00 25.00 000 0.00 000 1'00 a 0.22 027 0.20 0.0220 00141 0327 000 000 000 0.00 0.00 1321 60000 25.00 000 000 700 1:15 2 024 0.27 022 0.0240 00161 1447 000 000 0.00 000 000 14.47 600.00 2500 100 000 000 1.30 2. 0.24 021 022 0.0240 0.0161 1447 000 000 000 0.00 000 1447 60000 2500 000 000 000 1:45 2 0.24 027 0.22 00240 00161 14.47 000 000 000 000 000 1447 600.00 2500 000 000 0.00 2:00 2. 0.25 0.27 0.23 00250 00160 1508 000 000 000 000 000 15 60000 25.00 0.00 0.00 000 2.15 2. 026 027 023 00260 00174 1568 000 000 000 000 000 1568 600.00 2500 000 000 000 130 2. 0.21 0.27 0.24 00270 00101 16.28 0.00 0.00 000 0.00 0.00 16.20 60000 25.00 0.00 0.00 000 2:45 2 0.20 0.21 NIA 0.0062 00042 3.74 000 000 000 000 000 374 60000 2500 0.00 000 000 3:00 030 0.27 NIA 00262 00176 1580 000 0.00 000 0D0 000 1500 60000 2100 0.00 000 0.00 3.15 3 0.22 0.2111 /A 00462 0.0310 2186 000 000 0110 000 0.00 27.66 600.00 2500 206 000 000 330 3 0.36 0.27 N/A 0.0862 00578 51.98 000 000 000 000 0.00 5190 60063 2503 2901 0.04 0.00 3.45 4 043 0.27 N/A 0.1562 0.1047 94 000 000 000 0.00 000 94.19 606.59 2527 0873 012 000 4:00 4 047 0.27 NIA 0.1962 0.1315 118.31 000 000 000 000 000 11031 621.82 2501 1 023 000 4:15 5 0.54 027 NIA 0.2652 0.1784 160.52 000 000 000 000 0.00 16052 64223 2816 32480 040 000 4:30 6. 0.62 0.27 N/A 0.3462 0.2320 208]6 0.00 0.00 00D 000 000 200]6 611]9 2799 505.65 062 0.00 4:45 6. 069 0.21 NIA 04162 0.2789 25097 0.00 0.00 0.00 0.00 000 250.97 711.74 2966 72696 069 000 5:00 7. 0.75 0 N/A 04762 0.3191 287.15 0.00 000 000 000 000 261.15 76064 31.69 98742 171 000 5:15 10. 1.06 0.216114 07862 0.5268 47406 000 000 000 0.00 000 47400 01709 3405 142245 115 0.00 5.30 14 1.45 027 N/A 1.062 07881 709.25 0.00 000 000 0.00 000 70925 91433 38.10 203644 250 57.8 5:45 3 034 021 NIA 0.0062 0.0444 3992 000 000 0.00 000 0.00 3992 105000 43.75 203111 2.50 6 0.10 017 0.09 00100 00067 603 0.00 000 000 000 0.00 603 1049.15 4311 199492 245 0.00 0.00 027 0.00 0.0000 0.0000 000 0.00 000 000 000 000 000 104083 43.31 1951.55 240 000 000 027 0.00 00000 00000 000 000 0.00 000 000 000 000 1031.24 4297 1908.59 2.34 000 000 027 0.00 0.0000 00000 000 000 000 0D0 000 000 000 102115 429 186601 229 0.00 1 0.00 027 000 00000 00000 0.00 000 0.00 000 000 000 000 1012.34 42.10 182303 224 100 000 0.27 000 00000 00000 000 000 000 0.00 0.00 000 000 100302 41.79 1162.04 2.19 000 000 0.27 000 0.0000 00000 000 0.00 000 000 000 000 000 99378 4141 174063 114 000 0.00 0.27 000 00000 0.0000 0.00 000 000 000 0.D0 000 0.00 98463 41.03 1699.61 2.09 000 8 000 0.27 000 0.0000 0.0000 0.00 000 0.00 000 000 000 000 975.57 40.65 1658.96 2.0 000 Total volume NB 1586.03 Total Overflow (0f) 5717 • • • • Trine 24 P our Stormin60 mute Incremeeee oryowtl Drywall Prowsn Deviser Overflow Basin Basin Saco, an ern s /Nan Loss Rate Value FflecOVe Flow Flaw Outside Retention Pens(' Stoage Storage To Retention Period Storage Storage Overlow '• Pain(i ^ma May Olin Rain plot) Rate tats) Vol (cg Aloof NO Area Ng Pero. INS Vol . I so 04011100 Basin lop Area NI) Peon (cg Vol lei Depth (B) Vol NO 1:00 1.2 005 0.37 005 0.0054 0.0036 1302 000 000 000 000 0.00 1302 60000 2500 000 000 000 200 1.3 006 036 005 00059 00039 14.11 0.00 000 000 0.00 000 la. It 600.00 2500 000 000. 0.00 3:00 1.5 008 0.35 0.07 50061 0.0054 1954 000 000 000 000 000 1954 60000 2500 000 0.00 0.00 400 2. 009 034 009 00095 0.0063 2270 000 000 Don 000 0 00 2279 60000 2500 000 0.00 000 500 2 0 1 033 0.11 00126 0.0064 3039 0.00 000 0.00 0.00 000 30.39 60000 2500 539 00) 000 6 2 0.13 032 0.11 00131 00087 31.48 0.00 000 000 0.00 0.00 31.48 601.19 2505 11 02 001 000 7:00 3 0.17 031 015 0.0171 00)15 41.25 000 0.00 0.00 0.00 000 41.25 60251 2511 2195 003 000 800 4. 0.21 0.30 0.19 0.0207 00139 4993 000 009 000 00D 0.00 4993 606.16 2526 5263 006 000 900 6. 028 029 0.26 00204 0.0190 6038 0.00 000 000 000 000 68.38 51153 2548 95.52 0 t2 000 10'.00 6. 0.37 0.28 N/A 00079 0.0589 21195 000 090 000 000 0017 211.05 621.11 25.88 281.60 0.35 000 11'00 033 0.27 NIA 00421 0.0282 tell. 54 000 0 0 000 0.00 0.00 101.54 662.23 2759 35555 044 000 12:00 7 033 0.27 NIA 00635 00425 153.12 000 000 000 000 000 153.12 67057 2027 480.40 0.59 000 13.00 10. 0.49 026 N14 02285 0.153) 551.17 000 000 000 0.00 000 551.17 706.16 2942 1002.14 1.23 500 1400 11. 0.51 0.25 NIA 0.2627 0.1760 633.56 000 000 0.00 000 0.00 633.55 82145 3423 160147 I97 000 15:00 10 047 0.24 NIA 02144 0,1504 54137 000 000 000 000 000 541.37 953.65 39 .75 203644 2.50 6666 1600 8. 038 024 N/A 0.1453 0.0974 35052 000 000 000 000 0.00 350.52 105000 4375 203644 250 30577 1700 I 006 0.23 006 00063 00042 15.20 0.00 000 000 000 000 15.20 1050.00 43.75 200768 246 000 1800 I. 009 0.23 006 0.0050 0.0057 20.62 000 000 0.00 000 0.00 20.62 104369 4349 1 244 0.00 19:00 1. 006 0.22 0.05 00059 00039 14.11 000 000 000 000 000 14.11 103864 43.20 1955.05 240 000 • 20.00 I. 005 022 005 00054 00036 1302 000 000 000 000 000 1302 103219 4301 192507 1,35 21.00 1. 005 0.21 004 0.0050 0.0033 11.94 000 0.00 000 0.00 0.00 11,94 1025.57 4273 199508 2.33 0.00 22.00 0.05 021 004 00045 00030 1065 000 0.00 0.00 000 000 1085 1018.76 4245 186340 229 000 23:00 0. 004 021 0.04 00041 00027 977 000 000 000 000 0.00 977 1011.75 42.16 1031.09 2.25 000 24:00:00 0. 0.04 021 0.03 0.0036 00024 866 000 000 000 000 0.00 8.60 100462 4186 179752 2.21 000 25 0.00 0.21 000 0.0000 0 0000 000 000 000 000 0.00 000 0.00 99729 41.55 175636 2.16 000 26 000 021 000 0.0000 00000 000 0.00 0.00 000 000 000 000 966.11 41.17 1715.16 211 000 27 0.00 0.21 000 00000 00000 000 000 0.00 000 000 000 000 97901 40.79 167440 206 000 2B 000 021 0.00 0.0000 00000 000 000 000 000 000 000 000 9 7000 40.42 163398 201 000 29 0.00 021 000 00000 0.0000 900 000 0.00 0.00 0.00 000 000 96107 40.04 1593.94 196 0.00 30 000 021 0.00 0.0000 00000 000 000 0.00 000 000 0.00 0.00 95222 3966 1554.26 191 000 31 000 021 0.00 0.0000 0.0000 0.00 0.00 0.00 0.00 0.00 0.00 000 943.45 39.31 1514.95 1.66 000 32 0.00 021 000 0.0000 00000 0.00 0.00 000 000 000 000 0.00 934 .77 38.95 147600 1.81 500 Total volume 14)) 2930.32 Total volume tci) Total Overflow (oft 37343 NS RUNOFF INDEX NUMBERS OF HYDROLOGIC SOIL- COVER COMPLEXES FOR PERVIOUS AREAS -AMC II G U Cover Type (3) Quality of Soil Group Cover (2) A B C D • AGRICULTURAL COVERS (cont.) - Legumes, Close Seeded Poor 66 77 85 89 (Alfalfa, sweetclover, timothy, etc.) Good 58 72 81 85 Orchards, Deciduous See Note 4 (Apples, apricots, pears, walnuts, etc.) Orchards, Evergreen Poor 57 73 82 86 (Citrus, avocados, etc.) Fair 44 65 77 82 Good 33 58 72 79 Pasture, Dryland Poor 67 78 86 89 (Annual grasses) Fair 50 69 79 84 Good 38 61 74 80 Pasture, Irrigated Poor 58 74 83 87 (Legumes and perennial grass) Fair 44 65 77 82 Good 33 58 72 79 Row Crops Poor 72 81 88 91 (Field crops - tomatoes, sugar beets, etc.) Good 67 78 85 89 Small Grain Poor 65 76 84 88 (Wheat, oats, barley, etc.) Good 63 75 83 87 Vineyard See Note 4 I I I Notes: 1. All runoff index (RI) numbers are for Antecedent Moisture Condition (AMC) II. 2. Quality of cover definitions: Poor - Heavily grazed or regularly burned areas. Less than 50 per- cent of the ground surface is protected by plant cover or brush and tree canopy. Fair - Moderate cover with 50 percent to 75 percent of the ground sur- face protected. Good -Heavy or dense cover with more than 75 percent of the ground surface protected. 3. See Plate C -2 for a detailed description of cover types. 4. Use runoff index numbers based on ground cover type. See discussion under "Cover Type Descriptions" on Plate C -2. 5. Reference Bibliography item 17. R C F C a V I C O RUNOFF INDEX NUMBERS HYDROLOGY Ji1ANUAL FOR PERVIOUS AREA b PLATE - 5 (2 of 2) 3'9 -3 3IV1d S8391^4f1N X3GNl ddONf12l Sf1S83A Sd32�V Sf10IA83d � dnNvf� \� I•GG tG2iGl.�1 80d 31V8 NOIIVd1.1IJNI ®9 1 9 343 u • 1 nog /sa you! - (d.J) SV32JV Sf101A213d 2:1Od 31d8 NOLLVaLlIJNI • N O N W A U . �1 . 10 O N ° .■.N■■..■s ■ .■■■.■■■■■ ..■■m■.■ ■�...■■■ ■_. ° ■■■N■NN ■ N . ■N ■ ■NI. ■ ■��..1 ■N1■N NE MME M EM M MMO �M IIMM ■ M MAM E MM IEMM p m .■NN E■.N■■.■. ..rmN . .Ern■n■ i ■ .... N IIMUMEMMEMMOMMEMOMMINIMMMEMEMOMMUMMEMMENEUMMINMEWM mommommummommummummommumummmummomammommumm ....■......... nG :S::C:mm::::C......m.....�..... i3 W ■. . ■MI ■EE. ■■.E.E ■.■■.E.•IE.■.NM.N W 00 EMMENEMMEM •u■.■u ■ N nMMEMEM� ■. ■.■ ■ FIE.■ ..IH.■ ■■/ ■N■ ■ a MOMMIMMEMME . .7iuu P NN.■■.■■■■..N ■. ■.■■r,■■. ■E ■■■■'aE■. . ■MIN ° .E.. ■EN...... ■EN.■ .N■'I.. ■ ■..ri .■ u ■ui. - N ■ • - pt ENMIN■Euu ■■.NEE ■■ u s s■. ■■.N.I .■�...'/ ■■ .■ ■ q NNEIin.■NEn.■E/■�. A c ° ° .■..■■.... ■.■■.■...■n..■■ .■.■■'�■ EE E.IIE N■... ° '° E N EE ■EEE■N.I■.■E E■ ■■r.■ N . ..MINE■ f°u .■ xi E■■ NE ■■.■.■.■.. ■■..r1. ■. ■.... ■�/ ■■ ■.emrl■■ N■■.. r s C ...■■■. ■..■..N■..N.n....■ NO ■F.■ ■ ■N ■UE■E ■NMINEE " 4171 EN■ENENN■.■ ■N■■r4.■NNE■M A.■.NN. n Z N...■ ..■■■...■.■ NEN r�......N.. c 0 EN■E■E ■..■■■..■■ ■ ■■rl■■N■■ ■.. 3; 71 mommommummmommommummmommummummommmummmommm N.■ N.NN. ..N■„..I1.N ■. .nwa..■_. O ■■TI..■.. N O 9 2. 2 .. ■EE E■ E. E Er/ E■ E■. E■■■r, ■... ■. + . q ■ ■. Z ■ • NNNN.E ■t, .■E.■EE.. ISO MMMEMOMMENEMM0MII■■ ■ ■ ■■ co II E � :: ..EE .flan. • .N...■u aun.. ■ ■� ■ ' -, ammummommlin - ■■■. ■.■N/INN■NN N.■ y m , ■■ N ' = n'iiii%ii.■°U NN uU" 0 mum ■■E..E■E IIEE■ .■■■ .■■r..■■ ■N ■■■ MEMMEMMIIIMMUSEWAMEMMOMMSEMMUMMEMOMMESEMEMS T ■NN MEM N �IN��■��E. ■■NNEu.■IIEEE■ E■ N ■ ■EE ■EMI■ i -. n ■EE I,E■.EN■I ■■.■N■■r/■.■■■ ■ N■N. ■NN H p O m E. N m _ EEMME ■■ V.■E..E .. ■■.N ■E EEO ■E - ■E EN r,E.E.ErgN ■.Vl■■.N .N■■.N. MINE■. ( -" MINE w.N�nE■N m. MI ■ p m mom NE.MINE■I.MINE ��pp ■■ ■■► /NEE ■ . ■■■ ■ � ■ ■m■■�E ■ ■ E E■. ■EE. E■ 0 IMO NE MU �MN■EMVVN�fNNNN■MM •E. n E i i Mii NN►MIEENM■ uENO OENE ■ .NONE■ u ME E E NI■Emmr/E■.■■ /.■EEE EE■NN.N■ H cn ■ m N/1■.■r. ■NON . MI.■■N■■N.E■N■ ■N.N II o ou.■r =■iv u ■E .. .N nI. / ■ iE. E..E. .■ E....EE .. ■.MIN 2 .■■ / g ar I MMOii E = i N EM M MEE�■ N �N� OO OO iii ( /IV ■u ■ .■ N NEE �it� n ■E■■■ ■E■ ■ ■ � E �� • o :uN■ NEE■.■ NMI ■EENN■ ■E .. o • 0 0 - N W A N 01 .1 Co •D —° O /2 JOB /cirMUr - C- .4.4- eft/ , ..0 JHA ENGINEERING, INC. of - Civil Engineers /Land Surveyor SHEET NO `L Si 41921 Beacon Hill, Suite A ' Palm Desert, CA 92211 CALCULATED BY DATE 760- 779 -0657 Fax 779 -5143 CHECKED By • DATE SCALE RAINFALL INTENSITY-INCHES PER HOUR NURRIETI - TENECULA 1 _- 6 RANCHO CALIFORNIA -- - - -- - -- OUPAT10N FREQUENCY TES '- "- -- AlQ e� 0 K it.. ` . .. - . - j r DUO AT � _. . _. 1 0 10 0 a r . $ (✓ ' / .,..{ :.�-i I /1...✓ ' YEAR YEAR /- 6i 4 5 3.45 5.10 6 3.12 4.61 .. -_. T 2.87 4.24 �-�� - � 8 2.67 3.94 J C /a 417A) . _.. 9 2.50 3.69 _... .. 10 2.36 3.48 - (/O/ a /a c, 11 2.24 3.30 - �•7 _.. ._ ._. 12 2.13 3.15 a4) p //pp iA 9 a _.. 13 2.04 3.01 ._ /° ! 4e' ti . l c ..rte 14 1.96 2.89 15 1.89 2.79 _ 5. .... ._ 16 1.82 2.69 17 1.76 2.60 Q /O0 /• 5 Y 7L/ xi 6.9. o 4177‘.../:,5 ..... _. .._ 18 1.71 2.52 _. _. 19 1.66 2.45 y p 20 1.61 2.34 Qtli =. / fj' f r 1` 36, U / �. 27 C . Ac 22 1.53 2.26 - - i' s _... 24 1.46 2.15 __. 26 1.39 2.06 -- . .. _ ill : _ _ 28 1.34 1.94 30 1.29 1.90 _- - -- 34 1.20 1.7e _..- • �'"�'.: 17 i. i. 36 1.17 1.72 0 . 'a C S ': :. 3B -.- .: ,,� . :.. 40 1.10 1.62 __.... _.. __.. -. 45 1.03 1.52 y'� / '' . -.... ..__ 50 .97 1.44 fp '?' e/ /. � /i- f 55 .92 1.36 �. +•- C -'r S.A'" 60 .88 1.30 :i 'lg2 f} 4 it `. to 11 - *1'4s" a t Z` 65 U' SzT .4S mdte :. G tY 70 .81 1.19 - c' = 6 7 5 .75 l.ls T ,,y ? . . , mehei _ _... 6a de rh . 06 85 .73 1.07 P 3 Slopes :;Tt7R . 07 . SLOPE _ .550 . __. ._ 1; Results ol: l:alculatrons ; Normdl'Depth •41 f ' Velocdy '10 407 Ipz i 41➢d4:4005t � ti I to aF fi iT° Sl i. `' a P 7.,r ®r e F, 'F E> eT q , , 5' I • /vo y ear. ■ 1 !!�^ / ft /2- /' /51,x. e-9 • • y 0 C S ADAPTED FROM THE HYDRAULICS OF CULVERTS" BY F. T. MAVIS AS PUBLISHED IN CONCRETE PIPE LINES BY v' THE AMERICAN CONCRETE PIPE •ASSOCIATION AND IN BULLETIN 56, PENN. STATE COLLEGE ENGR. EXP. STA. • i • m r b • m D ° DIAMETER OF CULVERT - INCHES o I i .11 1\\ I I a I , I r I I I I I 1 I I I 1 r I I I$ R-s IN N N A • O O N OD -� O O N (71 A O m Co O NJ A O) IN 0 O a a cA cA ` o 6'. a 1.n n 1 I ( I I 1 ( I I'V 1 1 1 1 1 I I I ' I l i l t I l I I I 1 I I I I i 1 Z N W A (71 6 O O O O\ 5 O O O O O 6 O Q = -DISCHARGE -. CFS ' ° o `� ° ° ° ° oo c Z \ s * O \ • H O • .1 . V = VELOCITY IN FU L PIPE - FPS \#\ • m > w A Cu , m -.4 ( [O O N w A �.r # '1 Z - ' . . c "� H • 0 0 O O O O \— — N N co u - n - D W .-A (T Oh \ O Cn O in O ' t} A V %2g = FEET \o\-5.- 1 �•,.., Z I 0 '' „>. i 1 ;; n m o o O- _ f" ° m J m • tO O ()I - N W \ A • U 0) �I ) NI 1 I 1 I 1 1 I I I I I J I 'd 11. i I J 11 � A_ .I t l l rj1 j I / 1 11 I -I 1 _ � N N w dl k m 'G � n Q i0 O Cn O cn O O � I H/D _ HEADWATER ELEVATION ABO INVERT - DIAMETERS r --I �, C) '3 • • Water Quality Management Plan (WQMP) Appendix D Educational Materials • • WQMP Preparation /Revision Date: 12/6/08, 7/17/09, 8/25/09, 10/14/2009, 12/12/2010 Water Quality Management Plan (WQMP) Kingdom Hall of J ehovah's Witnesses • .. , • EMPLOYEE EDUCATION LOG L '. ii I ^�. } n r p s i S y k l,' ?mamma Provided s $ a,{Aa b.. .,¢�y r $1gtl8hlCC � �'e', 4 * q '`a r?''�a°y+ ( �m. w r .1 �. e7 4` mM1 .�� 4,41 ¢ N ..'�. 3 W `, x R y,F= � 4 tri �'t5�''� � QJ A rift 5 • • A -15 October 14, 2009 Water QualiTy Management Plan (WQMP) Appendix E Soils Report � � WQMP Preparation/Revision Date: 12/6/08, 7/17/09, 8/25/09, 10/14/2009, 12/12/2010 . competent earth materials materials, as measured on the downhill side. In order to establish keyway removals, backcuts should be cut no steeper than 1:1 or as recommended by the geotechnical engineer or engineering geologist. Compacted fill should be benched into competent earth materials. Cut Slopes When properly constructed, cut slopes into bedrock up to 10 feet high with inclinations of 2:1 (h:v) or flatter are considered grossly stable. Stabilization Fills Currently, stabilization fills will be required for cut slopes in the alluvium. Our engineering geologist or his representative should be called to evaluate all slopes during grading. ln the event that unfavorable geologic conditions are encountered, recommendations for stabilization fills or flatter slopes will be provided. Fill Over Cut Slopes The fill portion of fill over cut slopes should not be constructed until the cut portion of the slope has been cut to finish grade. The earth materials and geologic structure exposed along the cut slope should be evaluated with regard to suitabiliry for compacted fills or foundations and for stability. If the cut materials are determined to be competent, then the construction of the keyway and subdrain system may commence or additional remedial recommendations will be provided. • Tem,porary Backcuts It is the responsibiliry of the grading contractor to follow all Cal-OSHA requirements with regard to excavation safety. Where existing developments are upslope, adequate slope stability to protect those developments must be maintained. Temporary backcuts will be required to accomplish removals of unsuitable materials and possibly, to perform canyon removals, stabilization fills, and/or keycvays. Backcuts should be excavated at a gradient of 1:1 (h:v) or flatter. Flatter backcuts may be required where geologic structure or earth materials are unfavorable. tt is imperative that grading schedules minimize the exposure time of the unsupported excavations. All excavations should be stabilized within 30 days of initial excavation. Cut/Fill Transitions Cut/fill transitions should be eliminated from all building areas where the depth of fill placed within the "fill" portion exceeds proposed faoting depths. This is to diminish distress to structures resulting from excessive differential settlement. The entire foundation of each structure should be founded on a uniform bearing material. This should be accomplished by overexcavating the "cut" portion and replacing the excavated materials as properly compacted fill. Refer to the following table for recommended depths of overexcavation. DEPTH`OF FILL "fill" ortion DEPTHDF OVEREXCAVAT►ON "cut" ' ortion .' U to 5 feet E ual De th S to 10 feet S feet • Greater than 10 feet One-half the thickness of fill placed on the "fill" portion 10 feet maximum �Al[��f IHI=��['lf�l�']['1�, I[I��. 8 February 9, 2009 • the pad or against any foundation or retaining wall. Drainage should not be allowed to Flow uncontrolled over any descending slope. Planters located within retaining wall backfill should be sealed to prevent moisture intrusion into the backfill. Planters located next to structures should be sealed to the depth of the footings. Drainage control devices require periodic cleaning, testing and maintenance to remain effective. At a minimum, pad drainage should be designed at the minimum gradients required by the CBC. To divert water away from foundations, the ground surface adjacent to foundations should also be graded at the minimum gradients required per the CBC. Utility Trenches All utility trench backfill should be compacted at near optimum moisture to a minimum of 90 percent of the maximum dry density determined by ASTM test method D 1557-00. For utility trench backfill within pavement areas the upper 6 inches of subgrade materials should be compacted to 95 percent of the maximum dry density determined by ASTM D 1557-00. This includes within the street right-of-ways, utility easements, under footings, sidewalks, driveways and building floor slabs, as well as within or adjacent to any slopes. Backfill should be placed in approximately 6 to 8 inch maximum loose lifts and then mechanically compacted with a hydro- hammer, rolling with a sheepsfoot, pneumatic tampers, or similar equipment. The utility trenches should be tested by the project geotechnical engineer or their representative to verify minimum compaction requirements are obtained. • In order to minimize the penetration of moisture below building slabs, all utiliry trenches should be backfilled with compacted fill, lean concrete or concrete slurry where they undercut the perimeter foundation. Utility trenches that are proposed parallel to any building footings (interior and/or exterior trenches), should not be located within a 1:1 (h:v) plane projected downward from the outside bottom edge of the footing. SE[SMIC DESIGN CONSIDERATIONS Ground Motions Structures are required to be designed and constructed to resist the effects of seismic ground motions as provided in the 2007 California Building Code Section 1613. The design is dependent on the site class, occupancy category l, Il, III, or N, mapped spectral accelerations for short periods (Ss), and mapped spectral acceleration for a 1-second period (Si). In order for structural design to comply with the 2007 CBC, a computer program, Earthquake Ground Motion Parameters, Version 5.0.9, dated October 6, 2008, was used to compile spectral accelerations for the subject property based on data and maps jointly compiled by the United States Geological Survey (USGS) and the California Geological Survey (CGS). The data found in the following table is based on the Maximum Considered Earthquake (MCE) with 5% damped ground motions having a 2% probability of being exceeded in 50 years (2,475 year return period). • The seismic design coefficients were determined by a combination of the site class, mapped spectral accelerations, and occupancy category. The following seismic design coefficients should be implemented EA.1[�']f 1H[aS1['1EL' A"]['�0, ][1��C. 10 February 9, 2009 � PAVING DESIGN ' ^ ' JN: 08479-10A SMP � e��X't�} - StP'�'�"K7� X.PEC CONSULT: �,,,R� ,�„ E�,,,,,,,�,,.,�e. �..�.,.. wo��tr PROJECT: Kinadom Nall ETIER GEOHE_9CTIER 9EqVI�E_: BEIIER FESUl�9� CALCULATION SHEET # Entrences/Truck Drives CALTRANS METHOD FOR DESIGN OF FLEXIBLE PAVEMENT Input "R" value or "CBR" of native soil 15 Type of Index Property -"R" value or "CBR" (C or R) R R Value R Value used for Caltrans Method 15 Input Traffic Index (TI) 7 Calculated Total Gravel Equivalent (GE) 1.904 feet Calculated Total Gravel Equivalent (GE) 22.848 inches Calculated Gravel Factor (G� for A/C paving 2.14 Gravel Factor for Base Course (G� 1.0 • Pavement sect/ons provided be/ow are considered equa/; 6ut do not ieflect reviewing agency minlmums. INCHES FEET Gravel Equivalent A/C Section Minimum A/C Section Minimum GE GE Delta Thickness Base Thickness Base feet inches inches inches inches feet feet 0.62 7.50 15.35 � 3.5 15.6 I 0.29 1.30 --- - ---- 0.64 _ 771 ___15.14 __ 3.6_ __15A _ 0.30 1.25 - --- 0.71 8.57 14.28 4.0 14 4 0.33 1.20 __ - -- --- -- - - 0.75 9.00 13.85 4.2 13 8 0.35 1.15 - --------- ----- - __ - -.._ - -- --- ----- 0.80 9.64 13.21 4.5 13 2 0.38 1.10 _ 0,86 10.28 12.57 --_ -- 4.8 -- 12.6 � 0.40 1.05 ------- __ _ _- ----- -- ----- 0.89__10.71 ___12.14 _ ___ 5.0 12.0 0.42 1.00 1.07 12.85 9.99 � 6.0 10.2 0.50 0.85 ---- -- -- - -- 1.43__17_14 ___ Y 5.71 8.0 6.0 _ 0.67 0.50 ---- 1.79 21 .42 1.43 - -- - 10.0 ------ _ - - 12 --- - __ - 0.8 3 ---- 0.10 -- - 1.96 23.56 - --- _0.72 - ---- j � ------ --- 0.92 --- • a • Worksheet 2 Design Procedure Form for Design Flow Unifarm Intensity Design Flow JHA Engineering 77-810 Las Montanas Rd., Ste 20� Designer: /�lL�'7" Palm Desert, CA92211 Company: Date: jp pt� Project: Location: 1. Determine Impervious Percentage a. Determine total tributary area A, = 7 • 3 Z acres (1) b. Determine Impervious % i = (j. ¢ �- % (2) 2. Determine Runoff Coefficient Values Use Table 4 and impervious % found in step 1 a. A Soil Runoff Coefficient C = (3J b. B Soil Runoff Coefficient C = (4) • c. C Soil Runoff Coefficient C� = G- �J" � (SJ d. D Soil Runoff Coefficient C = (6) 3. Determine the Area decimal fraction of each soil type in tributary area a. Area of A Soil /(1) = A = (7) b. Area of B Soil /(1) = A = (8J c. Area of C Soil / (1) _ ,o, = 2 , �j � �g� d. Area of D Soil /(1) = q = ��p) 4. Determine Runoff Coefficient a. C = (3)x(7) + (4)x(8) + � + ( = C = I • 2 I (11� 5. Determine BMP Design flow � / '/� 3 a.c2 (11)xOZx(11 QBMP (/' U/v 5 (12J . 10 � • Worksheet 1 Design Procedure for BMP Design Volume 85� percentile runoff event Designer. e..�DR¢A.� �i�GI�G�I�° Company: ..1�f,�, '�J / �� / /N . Date: / "' ���°j Project: IN /SGa� �� ��0°'� �.l. w.J , Location: /� �� 1. Create Unit Storage Volume Graph a. Site location (Township, Range, and T 7.`� &R � G(J Section). Section 7. C� ( b. Slope value from the Design Volume �}/ Curve in Appendix A. Slope = �• L 7 �z� c. Plot this value on the Unit Storage Volume Graph shown on Figure 2. d. Draw a straight line form this point to Is this graph Yes � No❑ the origin, to create the graph attached? • 2. Determine Runoff Coefficient a. Determine total impervious area Aim - O� Z 3 acres (5) b. Determine total tributary area A, = d• Q-9 acres (6) c. Determine Impervious fraction � _ � , � � = D. ¢7 n� d. Use (7) in Fi�ure 1 to find Runoff OR C = .858i - 78i + .774i + .04 C = �•.3� (g) v.d9 —GJ�a-U,3(oi,U4' 3. Determine 85% Unit Storage Volume a Use (8) in Figure 2 Draw a Vertical line from (8) to the graph, then a Horizontal line to the in-acre desired V„ value. V� _ �� � v acre (9) 4. Determine Design Storage Volume n a. VBMP = (9) x (6) [in- acres] Vgry�p = � � �" �! in-acre (10) ' b. Vgry�p = �'IO� I ��L [ft- acres] VgMp = V� D� � ft-acre (11) c. V eMP = (11) x 43560 [ft VBMP - �I I ft' (12) Note��t ��n���, y2�A /I2S X,� = G7'S /38v✓�B Idl3 71f • S� �jAUD lIZS X!�s`X 20`�ca = 337 �3eco•v 7 9 • Worksheet 2 Design Procedure Form for Design Flow Uniform Intensity Design Flow Designer: ,,,f�7�n� ,�x}.�/�./�./Z.. Company: ,,,�`�C .�it.+�f�J�`�` �/r��t-• � Av�G . Date: ci�C'/° /S� "�.taU Project: lC/N z7aryl r+*�/,��.G �7�% J.�'✓ Location: �� cS`�jrj" FiLTE2— �J. 1. Determine Impervious Percentage a. Determine total tributary area A, _ �� `f"' acres (1) b. Determine Impervious °/a i= �- 4"7 % (2) 2. Determine Runoff Coefficient Values Use Tab�4 and impervious % found in step 1 a. A Soil Runoff Coefficient C = (3) b. B Soil Runoff Caefficient C = (4) • a C Sail Runoff Coefficient �� = a.SGo (5) d. D Soil Runoff Coefficient C = (6) 3. Determine the Area decimal fraction of each soil type in tributary area _ a. Area of A Soil /(1) = A = (7J b. Area of B Soil i(�) = n = �a� c_ Area of C Soil /(1) = A� _ �. � 7 (9) d. Area of D Soil i(�) = q, _ ��o) 4. Determine Runoff Coefficient y �A' ,44 a. C = ( + ( * ( ( + ( = C = �: � 7 (11) 5. Determine BMP Design flow 3 a. Q eMP = C x I x A=(11) x 02 x(1) QemP = �. -aJ`4 S ( � � 10 r� • Worksheet 1 Design Procedure for BMP Design Volume 85� percentile runoff event Designer: Company: Date: Project: Location: /��i ��y pp � .ev'?" 1. Create Unit Storage Volume Graph a. Site location (Township, Range, and T�J"� &R Z � Section). Section Zr� (�1 b. Slope value from the Design Volume Curve in Appendix A. Slope = � x� � c. Plot this value on the Unit Storage Volume Graph shown on Figure 2. d. Draw a straight line form this point to Is this graph Yes � No ❑ the origin, to create the graph attached? 2. Determine Runoff Coefficient • a. Determine total impervious area A ;mPeMO � s = �• ��O acres (5) b. Determine total tributary area A coiai = �' 3 d acres (6) c. Determine Impervious fraction i=(s)/(s) i= U•.�J j (71 d. Use (7J in Fiyure 1 to find Runoff � 3 � OR C = .858i - J8i + .�74i + .04 C = (8J (�-13-D i+v� 3. Determine 85% Unit Storage Volume a Use (8) in Figure 2 Draw a Vertical line from (8) to the graph, then a Horizontal line to the i in-acre desired V� value. V� _ �� � S acre (9J 4. Determine Design Storage Volume .ry a. V BMP =(9) x(6) [in- acres) Vgry�p = D� 1 A in-acre (10) b. VgMp = �'IO� I �Z [ft- acres] VgMp = V• U I� ft-acre (11J c. VeMa = (11) x 43560 [ft VeMa = Y7 � h (�2) Notes: • 7 j9 • Worksheet 6 Design Procedure Form for Porous Pavement Designer: Company: Date: Project: Location �.E/� ¢ 1. Determine Design Storage Volume (Use Worksheet 1) a. Total Tributary Area (maximum 10) A, _ �- 3 U acres b. Design Storage Volume, V BMP VgMp = � V ft' 2. Basin Surface Area a. Detention Volume VBMP V BMP =� ft' b. A = V BMP /(0.17 ft) A = ��i� `�i ft 3. Block Type Block Name = ���1 tt0- '�`,�'ll�.+ a. Minimum open area = 40% Manufacturer = L/�!!e2 SYpNE b. Minimum thickness = 4 inches Open Area = �-V % • Thickness = �_ inches 4. Base Course a. ASTM C33 Sand Layer (1 inch) Sand Layer (check) b. ASSHTO M43-No.8 Gravel Layer Gravel Layer —�� (check) (9 inches) Notes: �/1-�Vi�� �¢S y�� 2 � 34 � • Worksheet 1 Design Procedure for BMP Design Volume 85 percentile runoff event Designer: Company: Date: Project: Location: �tj �,r� S 1. Create Unit Storage Volume Graph a. Site location (Township, Range, and T &R Section). Section (�) b. Slope value from the Design Volume Curve in Appendix A. Slope = �� �'� ( c. Plot this value on the Unit Storage Volume Graph shown on Figure 2. d. Draw a straight line form this point to Is this graph Yes� No ❑ the origin, to create the graph attached? 2. Determine Runoff Coefficient • a. Determine total impervious area A imPeMO � s = O. � Z acres (5J b. Determine total tributary area A� = U�. �L'2 acres (6) c. Determine Impervious fraction �=(5)/(6) i= � (�l d. Use (7) in Figure 1 to find Runoff OR C = .858i - .78i + .77qi + .04 C = U. � (8J 3. Determine 85% Unit Storage Volume / a Use(8)inFigure2 `����� /¢ Draw a Vertical line from (8) to the graph, then a Horizontal line to the in-acre desired V„ value. V„ _ �. � acre (9) 4. Determine Design Storage Volume a. V BMP = (9) x (6) [in- acres] VgMp = �' � � in-acre (10) b. Vgry�p = �'IO� I �2 [ft- acres] V BMP = � • � � �/ ft-acre (11) c. V eMP =(11) x 43560 �ft VBMP - ��G/ ft ��2� Notes: • 7 2� • Worksheet 2 Design Procedure Form for Design Flow Uniform Intensity Design Flow Designer: Company: Date: Project: Location: iQ�q 1. Determine Impervious Percentage a. Determine total tributary area A, _ � z Z acres (1) b. Determine Impervious °/a i= % l� % (2) 2. Determine Runoff Coefficient Values Use Table 4 and impervious % found in step I a. A Soil Runoff Coefficient C = (3) b. B Soil Runoff Coefficient C = (4) • a C Soil Runoff Coefficient C� = U' -9 V (5) d. D Soil Runoff Coeffcient C = (6) � 3. Determine the Area decimal fraction of each soil type in tributary area a. Area of A Soil i(�� = a = ��l b. Area of B Soil /(1) = A = (8) c. Area of C Soil /(1) = q� _ - 2 � ( d. Area of D Soil 1(1J = P. = (10) 4. Determine Runoff Coefficient a. C = (3Jx(7J + (4Jx(8) + (5)x(9) + (6)x(10J = C = d' ! � � (11J 5. Determine BMP Design flow a a. Q eMP = C x I x A=(11J x 0.2 x(1J QBMP - r U� S (12) i� 10 Pervious Pavements SD-20 '� ' ( � : ti„ ,�q,S"�ea� �' t � "������ '�""^" r � "..; Design Objectives ��_ 3g� � "�, ", , ���"�`� .�•. ✓ Maximize Infiltration � � � � �� � n �,� ������'n �; ✓ Provide Retention �,g'�, �t: �+�, � °�� ✓ SlowRunoB � _ ` ✓ Minimize Impervious Land � "�, - �^� � "°"��-` Coverage �.;,+ � ^ ' ' - ��""`;`� � Prohibit Dumping of Improper ;+ Matenals � � - � Contain Pollutants �� FB.6A2�2 �'+ � ��� Collect and Convey ��� " , .. . � :: ; a+..,.. � ... ._ Description Pervious paving is used for light vehicle loading in parking areas. The term describes a system comprising a load-bearing, durable surface together with an underlying layered structure that temporarily stores water prior to infiltration or drainage to a controlled ouUet. The surface can itself be porous such that water infiltrates across the entire surface of the material (e.g., grass and gravel surfaces, porous concrete and porous asphalt), or can be built up of impermeable blocks separated by spaces and joints, through which the water can drain. This latter system is termed `permeable' paving. Advantages of pervious pavements is that they reduce runoff • volume while providing treatment, and are unobtrusive resulting in a high level of acceptability. Approach Attenuation of flow is provided by the storage within the underlying structure or sub base, together with appropriate flow controls. An undedying geote�ctile may permit groundwater recharge, thus contributing to the restoration of the natural water cycle. Alternatively, wherc infiltration is inappropriate (e.g., if the groundwater wlnerability is high, or the soil type is unsuitable), the surface can be constructed above an impermeable membrane. The system offers a valuable solution for drainage of spatially constrained urban areas. Significant attenuation and improvement in water quality can be achieved by permeable pavements, whichever method is used. The surface and subsurface infrastructure can remove both the soluble and fine particulate pollutants that occur within urban runoff. Roof water can be piped into the storage area directly, adding areas from which the flow can be attenuated. Also, within lined systems, there is the opportunity for stored runoff to be piped out for reuse. Suitable Applications Residential, commercial and industrial applications are possible. The use of permeable pavement may be restricted in cold regions, arid regions or regions with high wind erosion. There are some specific disadvantages associated with permeable pavement, which are as follows: ■ Permeable pavement can become clogged if improperly installed or maintained. However, this is countered by the ease with which small areas of paving can be cleaned or replaced when blocked or damaged. • January 2003 California Stormwater BMP Handbook 1 of 10 New Development and Redevelopment - www. cabmphandbooks.com SD-20 Pervious Pavements • ■ Their application should be limited to highways with ]ow traffic volumes, aacle loads and speeds (less than 3o mph limit), car parking areas and other lightly trafficked or non- trafficked areas. Permeable surfaces are currently not considered suitable for adoptable roads due to the risks associated with failure on high speed roads, the safety implications of ponding, and disruption arising from reconstruction. ■ When using un-lined, infiltration systems, there is some risk of contaminating groundwater, depending on soil conditions and aquifer susceptibility. However, this risk is likely to be small because the areas drained tend to have inherently low pollutant loadings. ■ The use of permeable pavement is restricted to gentle slopes. ■ Porous block paving has a higher risk of abrasion and damage than solid blocks. Design Considerations Designing New Installarions If the grades, subsoils, drainage characteristics, and groundwater conditions are suitable, permeable paving may be substituted for conventional pavement on parking areas, cul de sacs and other areas with light traffic. Slopes should be flat or very gentle. Scottish experience has shown that permeable paving systems can be installed in a wide range of ground conditions, and the flow attenuation performance is excellent even when the systems are lined. The suitability of a pervious system at a particular pavement site will, however, depend on the loading criteria required of the pavement. • Where the system is to be used for infiltrating drainage waters into the ground, the wlnerability of local groundwater sources to pollution from [he site should be low, and the seasonal high water table should be at least 4 feet below the surface. Ideally, the pervious surface should be horizontal in order to intercept local rainfall at source. On sloping sites, pervious surfaces may be terraced to accommodate differences in levels. Design Guidelines The desig� of each layer of the pavement must be determined by the likely traffic loadings and their required operational life. To provide satisfactory performance, the following criteria should be considered: ■ The subgrade should be able to sustain traffic loading wi[hout excessive deformation. ■ The granular capping and sub-base layers should give sufficient load-bearing to provide an adequate construction platform and base for the overlying pavement layers. ■ The pavement materials should not crack of suffer excessive rutting under the influence of traffic. This is controlled by the horizontal tensile stress at the base of these layers. Therc is no wrrent structural design method specifically for pervious pavements. Allowances should be considered the following factors in the design and specification of materials: • 2 of 10 Califomia Stormwater BMP Handbook ]anuary 2003 New Development and Redevelopment www . cabmpha n d books. co m Pervious Pavements SD-20 • ■ Pervious pavements use materials with high permeabiliry and void space. All the current UK pavement design methods are based on the use of conventional materials that are dense and relatively impermeable. The stiffness of the materials must therefore be assessed. ■ Water is present within the construction and can soften and weaken materials, and this must be allowed for. ■ Existing design methods assume full friction beriveen layers. Any geotextiles or geomembranes must be carefuily specified to minimize ]oss of friction between layers. ■ Porous asphalt loses adhesion and becomes brittle as air passes through the voids. Its durability is therefore lower than conventional materials, The single sized grading of materials used means that care should be taken to ensure that loss of fi�er particles between unbound layers does not occur. Positioning a geotextile near the surface of the pervious construction should enable pollutants to be trapped and retained close to the surFace of the construction. This has both advantages and disadvantages. The main disadvantage is that the filtering of sediments and their associated pollutants at this level may hamper percolation of waters and can eventually lead to surface ponding. One advantage is that even if eventual maintenance is required to reinstate infiltration, only a limited amount of the construction needs to be disturbed, since the sub-base below the geotextile is protected. In addition, the pollutant concentration at a high level in the sYructure allows for its release over time. It is slowly transported in the stormwater to lower • levels where chemical and biological processes may be operating to retain or degrade pollutants. The design should ensure that sufficient void space exists for the storage of sediments to limit the period between remedial works. ■ Pervious pavements require a single size grading to give open voids. The choice of materials is therefore a compromise behveen stiffness, permeability and storage capaciry. ■ Because the sub-base and capping will be in contact with water for a large part of the time, the strength and durability of the aggregate particles when saturated and subjected to wetting and drying should be assessed. ■ A uniformly graded single size material cannot be compacted and is liable to move when construction traffic passes over it. This efFect can be reduced by the use of angular crushed rock material with a high surface friction. In pollution control terms, these layers represent the site of long term chemical and biological pollutant retention and degradation processes. The construction materials should be selected, in addition to their structural strength properties, for their ability to sustain such processes. In general, this means that materials should create neutral or slighdy alkaline conditions and they should provide favorable sites for colonization by microbial populations. Construction/Inspection Considerarions ■ Permeable surfaces can be laid without cross-falls or longitudinal gradients. ■ The blocks should be lain level • January 2003 California Stormwa[er BMP Handbook 3 of 10 New Development and Redevelopment www. cabmphandbooks.com Infiitration Trench TC-10 � CONCRETE PARKING LOT IEVEL SPREADER GRA55 CHANNEL (LESS THAN 1 PLUNGE W4W4uWUU SLOPE) 44LL444WY P��� 4Y4LL44444W 4WLLW4V'WV444LL 4WYWY4W 4V44V 4VV4WV 444Y44 BVPAS$ VLLWY44 (TO DETENTION FACILIM 4 W Y W � W WWWLL44 / 4WWW4W 1 �� . � . �' INFILTMTION , p ;gee ;g�� TRENCH � t�e t��v �, NATHPEAGMVEL �� p�� o. � FILTERLAYER . .- OVER WASHED '� a.'y � y 6ANNRUNGMVEL � J;�y �q�� - �' AGGREGhTE ( y�v �'�ev 9" { y �.. k �� r Y_ — OVERFLOW � • PLAN VIEW OVERFLOW BERM� 0.UNOFF FI�TERSTHROUGH GiiA55 OBSERVATIONWELL BIIFFERSTRIP(20'MINIMUM�;GPA55 WITNSCREWTOPLID CHNNNEL;ORSEOIMENTATIONVAUT i �0= �--� w.�-�u�=uu=uu=uu= __ �_ ,> »> ��;z< _! ___'- � _— -m�mn-mn_mn��m — -:. . ".:",... .. — — IIII �Y `' �Y g:r �Y � - ' � .�� 9 � � � � � � " �. 3'P RAVE IlTE0.UYER : :�j :�j .�� �.��j .B." _ � . 'y = �o �t - PROiEC�IVELAYEROFFILTE TBRI `,.'f ��}•' _ - � � � � �t � f " � ' = FEETOEEP - • �o �s :a �:a �- I 1.5-3.51NGHDIAMETER �Y¢'YP'�Yd`4 - - &� . .�..� .�p .�� .eP,.. _ CLEANSTO , y .�,�.. , .B'y .dp B'p T� _ (9ANKRUN M REFERRE�) � �Y1�YY�Y:BYty � . 6. O 4 � �Y� �Y: �Y1�"Y �° ' • B '�° �o�.�a �I Y- -,�Y�.�t1�; :��� .�IO SAN 8'�EEP WI� - (ORi OUIVALENT) ♦ �� - DDUBIE•UNCD � __ _ _ — '.mn�nn=:_ = `-__ ° IOM�L R NOFFE%FIUfiATESTMROtIGN iMPCRVMUS UMER UNOISTURBEDSUBSOILSWITHA MINIMUM RATE OF O.S INCHES PER HOUR SECTION • January 2003 California Stormwater BMP Handbook 7 of 7 New Development and Redevelopment www.cabmphandbooks.com TC-30 Vegetated Swale • ■ Roadside ditches should be regarded as significant potential swale/buffer strip sites and should be utilized for this purpose whenever possible. Limitations ■ Can be difficult to avoid channelization. ■ May not be appropriate for industrial sites or locations where spills may occur ■ Grassed swales cannot treat a very large drainage area. Large areas may be divided and treated using multiple swales. ■ A thick vegetative cover is needed for these practices to function properly. ■ They are impractical in areas with steep topography. ■ They are not effective and may even erode when flow velocities are high, if the grass cover is ❑ot properly maintained. ■ In some places, their use is restricted by law: many local municipalities require curb and gutter systems in residential areas. ■ Swales are mores susceptible to failure if not propedy maintained than other treatment BMPs. Design and Sizing Guidelines • ■ Plow rate based design determined by local requirements or sized so that 85% of the annual runoff volume is discharged at less than the design rainfall intensity. ■ Swale should be designed so that the water level does not exceed 2/3rds the height of the grass or 4 inches, which ever is less, at the design treatment rate. ■ Longitudinal slopes should not exceed z.s% ■ Trapezoidal channels are normally recommended but other configurations, such as parabolic, can also provide substantial water quality improvement and may be easier to mow than designs with sharp breaks in slope. ■ Swales constructed in cut are preferred, or in fill areas that are far enough fi•om an adjacent slope to minimize the potential for gopher damage. Do not use side slopes constructed of fill, which are prone to structural damage by gophers and other burrowing animals. ■ A diverse selection of low growing, plants that thrive under the specific site, climatic, and watering conditions should be specified. Vegetation whose growing season corresponds to the wet season are preferred. Drought tolerant vegetation should be considered especially for swales that are not part of a regularly irrigated landscaped area. ■ The width of the swale should be determined using Manning's Equation using a value of 0.25 for Manning's n. • 2 of 13 California 5[ormwater BMP Handbook ]anuary 2003 New Development and Redevelopment www.cabmphandbooks.com TC-30 Vegetated Swale • Table 1 Grassed swale pollutant removal efficiency data Removal EfSciencies (% Removal) Study TSS 1P 1'N NO Metals Bacteria Type Caltrans zoo2 �p 8 6y 66 83-go -33 dry swales Goldberg i993 6 7� 8 4�5 - 3 42-6z -ioo grassed channel Seattle Metro and Washington go 45 - -25 2-16 -25 grassed channel Depar[ment of Ecology igqz . Seattle Metro and Washington 83 z9 - -2 5 4 -ZS grassed channel Department of Ecology, i992 Wang et al, i98i 80 - - - 90-80 - dry swale Dorman et al., i989 98 i8 - 45 37 - dry swale Harper, i988 87 83 8q 80 88-90 - dry swale Kercher et al., i983 99 99 99 99 99 - dry swale Harper,i988. Si i7 qo Sz 37-6q - wetswale Kooq i995 6 7 39 - 9 - 35 to 6 - wet swale While it is difficult to distinguish between different designs based on the small amount of • available data, grassed channels generally have poorer removal rates than wet and dry swales, although some swales appear to export soluble phosphorus (Harper, i988; Koon, i995)• It is not clear why swales export bacteria. One explanation is that bacteria thrive in the warm swale soils. Siting Criteria The suitability of a swale at a site will depend on land use, size of the area serviced, soil type, slope, imperviousness of the contrib�ting watershed, and dimensions and slope of the swale system (Schueler et al., i992). In general, swales can be used to serve areas of less than io acres, with slopes no greater than 5%. Use of natural topographic lows is encouraged and natural drainage courses should be regarded as significant local resources to be kept in use (Young et al., 1996). Selecrion Criteria (NCTCOG, 1993) ■ Comparable performance to wet basins ■ Limited to treati�g a few acres ■ Availability of water during dry periods to maintain vegetation ■ Sufficient available la�d area Research in the Austin area indicates that vegetated controls are effective at removing pollutants even when dormanL Therefore, irrigation is not required to maintain growth during dry periods, but may be necessary only to prevent the vegetation from dying. • 4 of 13 �alifornia Smrmwater BMP Handbook ]anuary 2003 New Development and Redevelopment www.cabmphandbooks.com Vegetated Swale TC-30 • The topography of the site should permit the design of a channel with appropriate slope and cross-sectional area. Site topography may also dictate a need for additional structural controls. Recommendations for longitudinal slopes range behveen z and 6 percent. Flatter slopes can be used, if sufficient to provide adequate conveyance. Steep slopes increase flow velocity, decrease detention time, and may require energy dissipating and grade check. Steep slopes also can be managed using a series of check dams to terrace the swale and reduce the slope to within acceptable limits. The use of check dams with swales also promotes infiltration. Additional Design Guidelines Most of the design guidelines adopted for swale design specify a minimum hydraulic residence time of 9 minutes. This criterion is based on the results of a single study condncted in Seattle, Washington (Seattle Metro and Washington Department of Ecology, i992), and is not well supported. Analysis of the data collected in that study indicates that pollatant removal at a residence time of 5 minutes was not significantly different, although there is more variabiliTy in that data. Therefore, additional research in the design criteria for swales is needed. Substantial pollutant removal has also been observed for vegetated controls designed solely for conveyance (Barrett et al, i998); consequently, some flexibility in the design is warranted. blany design guidelines recommend that grass be frequently mowed to maintain dense coverage near the ground surface. Recent research (Colwell et al., 2000) has show� mowing frequency or grass height has little or no effect on pollutant removal. SummarJ ofDesign Recommendations i) The swale should have a length that provides a minimum hydraulic residence time of • at least y�eminutes. The maximum bottom width should not exceed io feet unless a dividing berm is provided. The depth of flow should not exceed z/3rds the height of the grass at the peak of the water quality design storm intensity. The channel slope should not exceed 2.5%. 2) A design grass height of 6 inches is recommended. 3) Regardless of the recommended detention time, the swale should be not less than ioo feet in length. 4) The width of the swale should be determined using Manning's Equation, at the peak of the design storm, using a Manning's n of o.25. o. 028? 5) The swale can be sized as both a treatment facility for the design storm and as a conveyance system to pass the peak hydraulic flows of the ioo-year storm if it is located "on-line." The side slopes should be no steeper than 3:i (H:V). 6) Roadside ditches should be regarded as significant potential swale/buffer strip sites and should be utilized for this purpose whenever possible. If flow is to be introduced through curb cuts, place pavement slightly above the elevation of the vegetated areas. Curb cuts should be at least iz inches wide to prevent clogging. 7) Swales must be vegetated in order to provide adequate treatment of runoff. It is important to maximize water contact with vegetation and the soil surface. Por general purposes, select fine, close-growing, water-resistant grasses. If possiblc, divert runoff (other than necessary irrigation) during the period of vegetation • January 2003 California Stormwater BMP Handbook 5 of 13 New Development and Redevelopment www.cabmphandbooks.com TC-30 Vegetated Swale • establishment Where runoff diversion is not possible, cover graded and seeded areas with suitable erosion control materials. Maintenance The useful life of a vegetated swale system is directly proportional to its maintenance frequency. If properly designed and regularly maintained, vegetated swales can last indefinitely. The maintenance objectives for vegetated swale systems include keeping up the hydraulic and removal efficiency of the channel and maintaining a dense, healthy grass cover. Maintenance activities should include periodic mowing (with grass never cut shorter than the design flow depth), weed control, watering during drought conditions, reseeding of bare areas, and clearing of debris and blockages. Cuttings should be removed from the channel and disposed in a local composting facility. Accumulated sediment should also be removed manually to avoid concentrated flows in the swale. The application of fertilizers and pesticides should be minimal. Another aspect of a good maintenance plan is repairing damaged areas within a channel. For example, if the channel develops ruts or holes, it should be repaired utilizing a suitable soil that is properly tamped and seeded. The grass cover should be thick; if it is not, reseed as necessary. Any standing water removed during the maintenance operation must be disposed to a sanitary sewer at an approved discharge location. Residuals (e.g., silt, grass cuttings) must be disposed in accordance with local or State requirements. Maintenance of grassed swales mostly involves maintenance of the grass or wetland plant cover. Typical maintenance activities are summarized below: • ■ Inspect swales at least twice annually for erosion, damage to vegetation, and sediment and debris accumulation preferably at the end of the wet season to schedule summer maintenance and before major fall runoff to be sure the swale is ready for wintec However, additional inspection after periods of heavy runoff is desirable. The swale should be checked for debris and litter, and areas of sediment acwmulation. ■ Grass height and mowing frequency may not have a large impact on pollutant removal. Consequently, mowing may only be necessary once or rivice a year for safety or aesthetics or to suppress weeds and woody vegetation. ■ Trash tends to accumulate in swale areas, particularly along highways. The need for litter removal is determined through periodic inspection, but litter should always be removed prior to mowing. ■ Sediment accumulating near culverts and in channels should be removed when it builds up to 75 mm (3 in.) at any spot, or covers vegetation. ■ Regularly inspect swales for pools of standing water. Swales can become a nuisance due to mosquito breeding in standing water if obstructions develop (e.g. debris accumulation, ii�vasive vegetation) and/or if proper drainage slopes are not implemented and maintained. • 6 of 13 California Stormwa[er BMP Handbook ]anuary 2003 New Development and Redevelopment www.cabmphandbooks.com Vegetated Swale TC-30 • CO5t Construction Cost Little data is available to estimate the difference in cost beriveen various swale designs. One study (SWRPC, i99i) estimated the construction cost of grassed channels at approximately $o.zs per ft�. This price does not include design costs or contingencies. Brown and Schueler (i997) estimate these costs at approximately 3z percent of construction costs for most stormwater management practices. For swales, however, these costs would probably be significantly higher since the construction costs are so low compared with other practices. A more realistic estimate would be a total cost of approximately $o.so per ft�, which compares favorably with other stormwater management practices. • • January 2003 California Stormwater BMP Handbook 7 of 13 New Development and Redevelopment www.cabmpha nd books.mm TC-30 Vegetated Swa le • Maintenance Cost Caltrans (zoo2) estimated the expected annual maintenance cost for a swale with a tributary area of approximately 2 ha at approximately $2,�00. Since almost all maintenance consists of mowing, the cost is fundamentally a function of the mowing frequency. Unit costs developed by SEWRPC are shown in Table 3. In many cases vegetated channels would be used to convey runoff and would require periodic mowing as well, so there may be little additional cost for the water qualiTy component. Since essentially all the activities are related to vegetation management, no special training is required for maintenance personnel. References and Sources of Additional Information Barrett, Michael E., Walsh, Patrick M., Malina, Joseph F., Jr., Charbeneau, Randall J, i998, "Performance of vegetative controls for treating highway runoff," ASCE Journal of Enuironmental Engineering, Vol. 124, No. u, pp. u2i-uz8. Brown, W., and T. Schueler. i997. The Economics of Stormwater BMPs in the Mid-Atlantic Region. Prepared for the Chesapeake Research Consortium, Edgewater, MD, by the Center for Watershed Protection, Ellicott City, MD. Center for Watershed Protection (CWP). 1996. Design of Stormwa[er Filtering Systems. Prepared for the Chesapeake Research Consortium, Solomons, MD, and USEPA Region V, Chicago, IL, by the Center for Watershed Protection, Ellicott CiTy, MD. Colwell, Shanti R., Horner, Richard R., and Booth, Derek B., 2000. Characterization of Peiformance Predictors and Eualuarion ofMowing Practices in Biofiltration Swales. Report • to King County Land And Water Resources Division and others by Center for Urban Water Resources Management, Departme�t of Civil and Environmental Engineering, University of Washington, Seattle, WA Dorman, M.E., J. Hartigan, R.F. Steg, and T. Quasebarth. i989. Retention, Detention and � OuerlandFlowfor 89/2oz. Federal Highway Administration, Washington, DC. Goldberg. i993. Da�ton Auenue Swale Biofiltrarion Study. Seattle Engineering Department, Seatde, WA. Harper, H. i988. Effects of S[ormwater Management Systems on Groundwater Quality. Prepazed for Florida Department of Environmental Regulation, Tallahassee, FL, by Environmental Research and Design, Inc., Orlando, FL. Kercher, W.C., .I.C. Landon, and R. Massarelli. i983. Grassy swales prove cost-effective for watcr pollution control. Public Works, i6: 53 Koon, J. i995 Eualunrion of Water Qimlity Ponds and Swales in [he Issaquah/East Lake Sammamish Basins. King County Surface Water Management, Seattle, WA, and Washington Department of Ecology, Olympia, WA. Metzger, M. �., D. P. Messer, C. L. Beitia, C. M. Myers, and V. L. Kramec 2002. The Dark Side Of Stormwater Runoff Management: Disease Vectors Associated With Structural BMPs. Stormwater 3�2): 24-39•Oakland, P.H. i983. An evaluation of stormwater pollutant removal • 10 of 13 California S[ormwater BMP Handbook January 2003 New Development and Redevelopment � . www.cabmphandbookswm Vegetated Swale TC-30 • through grassed swale treatment. In Proceedings of the Internarional Symposium of Urban Hydrology, Hydraulics and Sediment Control, Lexington, KY. pp. i�3—i82. Occoquan Watershed Monitoring Laboratory. i983. Final Report: Metropolitan Washington Ur6an Runoff Project. Prepared for the Metropolitan Washington Council of Governments, Washington, DC, by the Occoquan Watershed Monitoring Laboratory, Manassas, VA. Pitt, R., and J. McLean. ig86. Toronto Area Watershed Management Strategy Study: Humber Riuer Pilot Watershed Project. Ontario Ministry of Environment, Toronto, ON. Schueler, T. i997. Comparative Pollutant Removal CapabiliTy of Urban BMPs: A reanalysis. Watershed Protection Techniques 2(2):379 Seattle Metro and Washington Department of Ewlogy. i99z. Biofiltration Swale Performance: Recommendarions and Design Considerarions. Publication No. 65�. Water Pollution Control Department, Seattle, WA. Southeastern Wisconsin Regional Planning Commission (SWRPC). 199i. Costs of Ur6an Nonpoint Source Water Pollution Control Measures. Technical report no. 31. Southeastern Wisconsin Regional Planning Commission, Waukesha, WI. U.S. EPA, i999, Stormwater Fact Sheet: Vegetated Swales, Report # 832-F-99-o06 htt�/,www.epa.gov/owm/mtb/vegswale.pdf, Office of Water, Washington DC. Wang, T., D. Spyridakis, B. Mar, and R. Horner. i98i. Transport, Deposirion and Control of • Henuy Metafs in Hightuay Runoff. PHWA-WA-RD-39-io. University of Washington, Department of Civil Engineering, Seattle, WA. Washington State Department of Transportation, i995� Highway Runoff Manua(, Washington State Department of Transportation, Olympia, Washington. WelUorn, C., and J. Veenhuis. i987. Effects of Runoff Controls on the Quan[i[y and Quulity of Urban Runoff in Two Locations in Austin, TX. USGS Water Resources Investigations Report No. 8�-4004. U.S. Geological Survey, Reston, VA. Yousef, Y., M. Wanielista, H. Harper, D. Pearce, and R. Tolbert. i985. Best Management Practices: Remoual ofHighway Conmminants By Roadside Swa(es. University of Central Florida and Plorida Department of Transportation, Orlando, FL. Yu, S., S. Barnes, and V. Gerde. i993. Tesring ofBes[Management PracticesforConirol(ing Highway Runoff. FHWA/VA-93-Ri6. Virginia Transpoitation Research Council, Charlottesville, VA. Infm•mnrion Resources Maryland Department of the Environment (MDE). 2000. Mnryland Stormwater Desiqn Monual. www.mdestate.md.us/environment/wma/stormwatermanUal. Accessed May 22, 2ooi. Reeves, E. t994 Performance and Condition of Biofilters in the Pacific Northwest. Wntershed Protection Techniques 1(3):11'7-119. • ]anuary 2003 California Stormwater BMP Handbook 11 of 13 New Development and Redevelopment � www.ca bmpha nd books.com TC-30 Vegetated Swale • Seatde Metro and Washington Department of Ecology. 1992. Biofiftration Swale Performance. Recommendations and Design Considerations. Publication No. 65�. Seattle Metro and Washington Department of Ecology, Olympia, WA. USEPA i993• Guidance Specifying Management Measures for Sources of Nonpoint Po(lurion in Coastal Waters. EPA-84o-B-92-ooz. U.S. Environmental Protection Agency, Office of Water. Washington, DC. Watershed Management Institute (WMI). i997. Operation, Maintenance, and Management of Stormwater Management Systems. Prepared for U.S. Environmental Protection Agency, Office of Water. Washington, DC, by the Watershed Management Institute, Ingleside, MD. • • 12 of 13 � CaliPomia Stormwater BMP Handbook ]anuary 2003 New Development and Redevelopment www.cabmphandbooks.com TC-32 Bioretention • be required since clogging may result, particularly if the BMP receives runoff with high sediment loads (EPA, i999)• ■ Bioretention is not a suitable BMP at locations where the water table is within 6 feet of the ground surface and where the surrounding soil stratum is unstable. ■ By design, bioretention BMPs have the potential to create very attractive habitats for mosquitoes and other vectors because of highly organic, ofren heavily vegetated areas mixed with shallow water. ■ In cold climates the soil may freeze, preventing runoff from infiltrating into the planting soil. Design and Sizing Guidelines ■ The bioretention area should be sized to capture the design storm runoff. ■ In areas where the native soil permeability is less than o.5 in/hr an underdrain should be provided. ■ Recommended minimum dimensions are i5 feet by 4o feet, although the preferred width is zs feet. Excavated depth should be 4 feet. ■ Area should drain completely within �2 hours. ■ Approximately i tree or shrub per 5o fr� of bioretention area should be included. � ■ Cover area with about 3 inches of mulch. Construction/Inspection Considerarions Bioretention area should not be established until contributing watershed is stabilized. Performance 13ioretention removes stormwater pollutants through physical and biologica] processes, including adsorption, filtration, plant uptake, microbial activity, decomposition, sedimentation and volatilization (EPA, i9qq). Adsorption is the process whereby particulate pollutants attach to soil (e.g., clay) or vegetation surfaces. Adequate contact time between the surface and pollutant must be provided for in the design of the system for this removal process to occur. Ttms, the infiltration i ate of the soils must not exceed those specified in the design criteria or pollutant removal may decrease. Pollutants removed by adsorption include metals, phosphorus, and hydrocarbons. Piltration occurs as runoff passes through the bioretention area media, such as thc sand bed, ground cover, and planting soil. Common particulates removed from stormwater include particulate organic matter, phosphorus, and suspended solids. Biological processes that occur in wetlands result in pollutant uptake by plants and microorganisms in the soil. Plant growth is sustained by the uptakc of nutrients from the soils, with woody plants locking up these nutrients through the seasons. Microbial activity within the soil also contributes to the removal of nitrogen and organic matter. Nitrogen is removed by nitrifying and denitrifying bacteria, while aerobic bacteria arc responsible for the decomposition of the organic matter. Microbial processes reyuire mcygen and can result in depleted oxygen levels if the bioretention area is not adequately • 2 of 8 Califomia Stormwater BMP Handbook January 2003 New Development and Redevelopment www.cabmphandbooks.com Bioretention TC-32 • aerated. Sedimentation occurs in the swale or ponding area as the velocity slows and solids fall outofsuspension. The removal effectiveness of bioretention has been studied during field and laboratory studies conducted by the University of Maryland (Davis et al, i998). During these experiments, synthetic stormwater runoff was pumped through several laboratory and field bioretention areas to simulate typical storm events in Prince George's County, MD. Removal rates for heavy metals and nutrients are shown in Table i. Table 1 Laboratory and Estimated Bioretention Davis et al. (1998); PGDER(1993) Pollutant Removal Rate Total Phosphorus 70-83% Metals (Cq Zn, Pb) 93 TKN 68-So% Total Suspended Solids 90% Organics 90% Bacteria 90% • Results for both the laboratory and field experiments were similar for each of the pollutants analyzed. Doubling or halving the influent pollutant levels had little effect on the effluent pollutants concentrations (Davis et al, i9g8). The microbial activity and plant uptake occurring in the bioretention area will likely result i❑ higher removal rates than those determined for infiltration BMPs. Siting Criteria Bioretention BMPs are generally used to treat stormwater from impervious surfaces at commercial, residential, and industrial areas (EPA, 1999)• Implementation of bioretention for stormwater management is ideal for median strips, parking lot islands, and swales. Moreover, the runoff in these areas can be designed to either divert directly into the bioretention area or comey into the bioretention area by a curb and gutter collection system. Thc best location for bioretention areas is upland from inlets that receive sheet flow from graded areas and at areas that will be excavated (EPA, i999). In order to maximize treatment etfectiveness, the site must be graded in such a way that minimizes erosive conditions as sheet flow is co�veyed to the treatment area. Locations where a bioretention area can be readily incorporated into the site plan without further environmental damage are preferred. Eurthermore, to effectively minimize sediment loading in the treatment area, bioretention only should be used in stabilized drainage areas. • ]anuary 2003 Califomia Stormwater BMP Handbook 3 of B New Development and Redevelopment www.cabmphandbooks.com TC-32 Bioretention • Additional Design Guidelines The layout of the bioretention area is determined after site constraints such as location of utilities, underlying soils, existing vegetation, and drainage are considered (EPA, i999). Sites with loamy sand soils are especially appropriate for bioretention because the excavated soil can be backfilled and used as the planting soil, thus eliminating the cost of importing planting soil. The use of bioretention may not be feasible given an unstable surrounding soil stratum, soils with clay content greater than 25 percent, a site with slopes greater than 2o percent, and/or a site with mature trees that would be removed during construction of the BMP. Bioretention can be designed to be off-line or on-line of the existing drainage system (EPA, 1999)• The drainage area for a bioretention area should be between o.i and o.4 hectares (0.25 and i.o acres). Larger drainage areas may require multiple bioretention areas. Furthermore, the maximum drainage area for a bioretention area is determined by the expected rainfall intensity and runoff rate. Stabilized areas may erode when velocities are greater than 5 feet per second (t.s metec per second). The designer should determine the potential for erosive conditions at the site. The size of the bioretention area, which is a function of the drainage area and the runoff generated from the area is sized to capture the water quality volume. The recommended minimum dimensio�s of the bioretention area are ig feet (4.6 meters) wide by 4o feet (i2.2 meters) long, where the minimum width allows enough space for a dense, randomly-distributed area of trees and shrubs to become established. Thus replicating a natural • forest and creating a microclimate, thereby enabling the bioretention area to tolerate the effects of heat stress, acid rain, runoff pollutants, and insect and disease infestations which landscaped areas in urban settings typically are unable to tolerate. The preferred width is 25 feet (�.6 meters), with a length of twice the width. Essentially, any facilities wider than 2o feet (6.i meters) should be twice as long as they are wide, which promotes the distribution of flow and decreases the chances of concentrated flow. In order to provide adequate storage and prevent water from standing for excessive periods of time the ponding depth of the bioretention area should not exceed 6 inches (is centimeters). Water should not be left to stand for more than 7z hours. A restriction on the type of plants that can be used may Ue necessary due to some plants' water intolerance. Furthermore, if water is left standing for longer than 72 hours mosquitoes and other insects may start to breed. 'Che appropriate planting soil should be backfilled into the excavated bioretention area. Planting soils should be sandy loam, loamy sand, or loam texture with a clay content ranging from io to 25 percent. Generally the soil should have infiltration rates greater than o.s inches (iss centimeters) per hour, which is typical of sandy loams, loamy sands, or loams. The pH of the soil should range behveen 5.5 and 6.5, where pollutants such as organic nitrogen and phosphorus can be adsorbed by the soil and microbial activity can flourish. Additional requirements for the planting soil include a i.s to 3 percent organic content and a maximum Soo ppm concentration of soluble salts. � 4 of 8 Californla Stormwater BMP Handbook January 2003 New Development and Redevelopment www.cabm p ha nd books.com Bioretention TC-32 • Soil tests should be performed for every Soo cubic yards (38z cubic meters) of planting soil, with the exception of pH and organic content tests, which are required only once per bioretention area (EPA, i999)• Planting soil should be 4 inches (io.i centimeters) deeper than the bottom of the largest root ball and 4 feet (x.z meters) altogether. This depth will provide adequate soil for the plants' root systems to become established, prevent plant damage due to severe wind, and provide adequate moisture capacity. Most sites will require excavation in order to obtain the recommended depth. Planting soil depths of greater than 4 feet (i.z meters) may require additional construction practices such as shoring measures (EPA, i999). Planting soil should be placed in i8 inches or greater lifts and lightly compacted until the desired depth is reached. Since high ca�opy trees may be destroyed during maintenance the bioretention area should be vegetated to resemble a terrestrial forest community ecosystem that is dominated by understory trees. Three species each of both trees and shrubs are recommended to be planted at a rate of 250o trees and shrubs per hectare (i000 per acre). For instance, a 15 foot (4.6 meter) by 4o foot (i2.2 meter) bioretention area (60o square feet or 55•75 square meters) would require i4 trees and shrubs. The shrub-to-tree ratio should be 2:i to 3:i. Trees and shrubs should be planted when conditions are favorable. Vegetation should be watered at the end of each day for fourteen days following its planting. Plant species tolerant of pollutant loads and varying wet and dry conditions should be used in the bioretention area. The designer should assess aesthetics, site layout, and maintenance requirements when selecti�g plant species. Adjacent non-native invasive species should be identified and the • designer should take measures, such as providing a soil breach to eliminate the threat of these species invading the bioretention area. Regional landscaping manuals should be consulted to ensure that the planting of the bioretention area meets the landscaping requirements established by the local authorities. The designers should evaluate the best placement of vegetation within the bioretention area. Plants should be placed at irregular intervals to replicate a natural forest Trees should be placed on the perimeter of the area to provide shade and shelter from the wind. Trees and shrubs can be sheltered from damaging flows if they are placed away from the path of the incoming runoff. In cold climates, species that are more tolerant to cold winds, such as evergreens, should be placed in windier areas of the site. Pollowing placement of the trees and shrubs, the gronnd cover and/or mulch should be established. Ground cover such as grasses or legumes can be planted at the beginning of the growing season. Mulch should be placed immediately afrer [rees and shrubs are planted. Two to 3 inches (5 to 7.6 cm) of commercially-available fine shredded hardwood mulch or shredded hardwood chips should be applied to the bioretention area to protect from erosion. Maintenance The primary maintenance requirement for bioretention areas is that of inspection and repair or replacement of the trcatment area's components. Generally, this involves nothing more than thc routinc periodic maintenance that is required of any landscaped area. Plants that are appropriate for the site, climatic, and watering conditions should be selected for use in the bioretention cell. Appropriately selected plants will aide in reducing fertilizer, pesticide, watcr, and overall maintenance requirements. IIioretention system components should blend over time through plant and root growth, organic decomposition, and the development of a natural • January 2003 Califomia 5[ormwater BMP Handbook 5 of 8 New Development and Redevelopment www.cabmphandbooks.com TC-32 Bioretention • soil horizon. These biologic and physical processes over time will lengthen the facility's life span and reduce the need for extensive maintena�ce. Routine maintenance should include a biannual health evaluation of the trees and shrubs and subsequent removal of any dead or diseased vegetation (EPA, i999)• Diseased vegetation should be treated as needed using preventafive and low-toxic measures to the extent possible. BMPs have the potential to create very attractive habitats for mosquitoes and other vectors Uecause of highly organic, often heavily vegetated areas mixed with shallow water. Routine inspections for areas of standing water within the BMP and corrective measures to restore proper infiltration rates are necessary to prevent creating mosquito and other vector habitat. In addition, bioretention BMPs are susceptible to invasion by aggressive plant species such as cattails, which increase the chances of water standi�g and subsequent vector production if not routinely maintained. In order to maintain the treatment area's appearance it may be necessary to prune and weed. Purthermore, mulch replacement is suggested when erosion is evident or when the site begins to look unattractive. Specifically, the entire area may require mulch replacement every two to three years, although spot mulching may be sufficient when there are random void areas. Mulch replacement should be done prior to the start of the wet season. New Jersey's Department of Environmental Protection states in their bioretention systems standards that accumulated sediment and debris remova] (especially at the inflow point) will ❑ormally be the primary maintenance function. Other potential tasks include replacement of dead vegetation, soil pH regulation, erosion repair at inflow points, mulch replenishment, • unclogging the underdrain, and repairing overflow structures. There is also the possibility that the cation exchange capacity of the soils in the cell will be significantly reduced over time. Depending on pollutant loads, soils may need to be replaced within 5-io years of construction (LID, 2000). Cost Consh•uc[ion Cost Construction cost estimates for a bioretention area are slightly greater than those for the required landscaping for a new development (EPA, i999)• A general rule of thumb (Coffman, t999) is that residential bioretention areas average about $3 to $4 per square foot, depending on soil conditions and the density and types of plants used. Commercial, industrial and institutional site costs can range between $io to $4o per square foot, based on the need for control structures, curbing, storm drains and underdrains. Retrofitting a site typically costs more, averaging $6,50o per bioretention area. The higher costs are attributed to the demolition of existing concrete, asphalt, and existing structures and the replacement of fill matcrial with planting soil. The costs of retrofitting a commercial site in Maryland, Ketteri�g Development, with is bioretentio� areas were estimated at $itt,600. In any bioretention area design, thc cost of plants varies substantially and can account for a significant portion of the expenditures. While these cost estimates are slightly greater than those of typical landscaping treatment (due to the increased number of plantings, additional soil excavation, backfill material, use of underdrains etcJ, those landscaping expenses that would be reyuired regardless of the bioretention installation should be subtracted when determining the net cost. • 6 of S California Stormwater BMP Handbook ]anuary 2003 New Development and Redevelopment www.cabmphandbooks.com MP-51 Vortex Separator • matter (e.g., leaves) decomposes in the units. Design and Sizing Guidelines The stormwater enters, typically below the effluent line, tangentially into the basin, thereby imparting a circular motion in the system. Due to centrifugal forces created by the circular motion, the suspended particles move to the center of the device where they settle to the bottom. There are two general types of vortex separation: free vortex and dampened (or impeded) vortex. Free vortex separation becomes dampened vortex separation by the placement of radial bafftes on the weir-plate that impede the free vortex-flow pattern It has been stated with respect to CSOs that the practical lower limit of vortex separation is a particle with a settling velocity of i2 to i6.5 feet per hour (o.io to o.i4 cm/s). As such, the focus for vortex separation in CSOs has been with settleable solids generally zoo microns and larger, given the presence of the lighter organic solids. Por inorganic sediment, the above settling velocity range represents a particle diameter of 5o to ioo microns. Head loss is a function of the size of the target particle. At zoo microns it is normally minor but increases significantly if the goal is to remove smaller particles. The wmmercial separators applied to stormwater treatment vary considerably with respect to geometry, and the inclusion of radial baffles and internal circular chambers. At one extreme is the inclusion of a chamber within the rotmd concentratoc Water flows initially arotmd the perimeter between the inner and outer chamUers, and the� into the inner chamber, giving rise to a sudden change in velociTy that purportedly enhances removal efficiency. The opposite • e�ctreme is to introduce the water tangentially into a round manhole with no internal parts of any kind except for an outlet hood. Whether the inclusion of chambers and baffles gives better performance is unknown. Some contend that free vortex, also identified as swirl concentration, creates less turbtdence thereby increasing removal efficiency. One product is unique in that it includes a static separator screen. ■ Sized is based on the peak flow of the design treatment event as specified Uy local government. ■ If an in-line faciliry, Yhe design peak flow is four times the peak of the design treatment event. ■ If an off-line facility, the design peak tlow is equal to the peak of the design treatment event. ■ Headloss differs with the product and d�e model but is generally on the order of one foot or less in most cases. Construction/Inspection Considerntions No special considerations. Performance Manafacturer's differ with respect to performance claims, but a general statement is that the manufactttrer's design and rated capacity (cfs) for each model is Uased on and believed to achieve an aggregate reduction of 90% of all particles with a specific gravity of 2.65 (glacial sand) down to i5o microns, and to caphire the floatables, and oil and grease. Laboratory tests of two products support this claim. The stated pei�formance expectation therefore implies that a • 2 of 5 California Stormwater BMP Handbook ]anuary 2003 New Development and Redevelopment www.cabm phandbooks.com • A PHASE I CULTURAL RF,SOURCF,S AS5FSSMENT OF A 3.09-ACRE PARCEL LOCATED EAST OF THE INTERSECTION OF CALLE GIRASOL AND AUSSIE AVENUE, TEMECULA, RNERSIDE COUNTY by Robert S. White Laura S. White, M.A. Archaeological Associates P.O. Box 180 Sun City, CA 92586 TEL (951) 244-1783 FAX (951) 244-0084 fOP Joseph van I-laaster Temecula Valley Building Committee • 41221 Via Anita Temecula, CA 92592 June 17, 2009 Study Area USGS 7.5' Topographic Quadrangle: Bucheloi• Mln. Study Area Acreage: 3.09 acres Section 20, Township 7 South, Range 2 West, SBB&M KF.YWORDS: Survey, Calle Girasol, Aussie Avenue, 7'emecula, Riverside County The undersigned certifies that the attached report is a uue and accurate description ofthe results of a PHASE ( CULTURAL RESOURCES assessment described herein. C���;��, ��- ............................... Robert S. White • Principal Investigator . MANAGEMENTSUMMARY At the request of Joseph van Haaster and the Temecula Valley Building Committee, Archacological Associates has undertaken a Phase I cultural resources assessment of 3.09-acres of undcveloped land. The subject property is located east ofthe intersection Calle Cirasol and Aussie Flvcnue in the Ciry of "I'emecula, Riverside County. The purpose of the study was to identify all potentially significant cultural resources situated within the project area. It is currently desired to constructa Kingdom Hall ofJehovah's Wimesses. The results of the records scarch conducted at the Eastern Information Center (EIC), Universiry of California at Riverside indicated that no prehistoric or historic resources have been recorded within the boundaries of the subject property. "t'he results of the field study were also completely negative. Therefore, no additional work in conjunction with cultural resources, including monitoring of grading activities, is recommended. • • -iii- • L INTRODUCTION The following report was written for Joseph van Haaster and the Temecula Valley Building Committee by Archaeological Associates. It describes the results ofa cultural resources assessment of 3.09-acres of undeveloped land. The study area, identified as APN 957-120-019, is located at 31640 Calle Girasol, City ofTemecula, Riverside Counry. Presently, project proponents desire to construct a Kingdom Hall ofJehovah's WiMesses on the property. The purpose ofthis study was to identify all potentially significant cultural resources situated within the boundaries ofthe shidy area. This information is needed since adoption ofthe plan could result in adverse effects upon locations of archaeological or historical importance. Our assessment consisted of: (I ) a records search conducted to detennine whether any previously recorded historic or prehistoric material is present on the parcel, and (2) a field reconnaissance intended to identify any previously unrecorded cultural resources. The study described herein was conducted in accordance with the Cal ifornia Environmental Quality Act (CEQA) as it pertains to the management ofcultural resources. • Il. STUDY AREA LOCATION AND ENVIRONMENT Regionally, the study area lies in southwcstern Riverside County,justnorth ofRiverton Park within the northern portion of the City of Temecula. The historic core of Temecula lies approximately 4-m iles to the southwest as does Lake Skinner the same distance to the northeast (fig. 1). Specifically,thepropertyislocatedimmediatelyeastoftheintersectionofCalleGirasol(paved) and Aussie Avenue (gravel). Legally, the subject� property is situated within the Southeast I/4 of the Southwest I/4 and the Southwest I/4 ofthe Southeast I/4 of Section 20, Township 7 South, Range 2 West, San Bernardino Base Meridian as shown on a portion ofthe USGS Bachelor Mtn. 7.5' Topographic Quadrangle (fig. 2). The projectarea is irregular in shape with portionsof Calle Girasol abutting the southern and southwestern property boundaries. The northwestern boundary is delineated by Aussie Avenue and the northeastern boundary by rural residential development. The extreme eastern tip ofthe property adjoins Jeffrey Heights Road. Topographically, the study area comprises a portion ofa broad swale that is relatively flat. A small drainage roughly follows the northeastern property boundary from easl • -1 \� II .�� I # _l_ �Y' I : � 5 40... � � ) � I: dU I I � \Sdn JdCiOfd .1� . ; _ 1 � � µ �,}�, <'ndtm • t ',� ` �`.� _� N � k�uow..� I� ��a1AKEVlEW MO N7AfN5 e� � �,� _ ��� �`� (SW OB rrs I - 5 I � 1�' �J i� �� n�� If+tq'��Ai R ieh � — . � '� � � � _ I I r —� _ S_'\ B- — �r P� �j I j� � a=U � � F k � �.,, m� � �Ifm �' �('}' . PL_ ,� f . � - . � lyate �' I Q : � A�7l�6111 ' �' ♦f ! � �I � i \ M1 i ' t_. �, �- �r � ,�°1,�, � � ;� ,�9 , y � .�� y , � A . � ».iu I . I�.?IZ,_ �ccn.Yh � �Hame�Oncj� - ' � � ; � i `Y .� ' I` s I -� - J� I.- il 1 . �.�.a Ll_ � 1� � �� � � � I � �! - 17_n�e2 � r�sti� :�--��� ;��� � . � � � l /2� � . HB C1 i �� llcr rr ' � `` r i� t�?�b�ir'��7E 1 _ i ��mm> ��� ' .-p �� l -!�� � f �3,:.. � ,�' � � � I I ) � --, - ' s� 't...... /"'..j . _ , . Lluad( -' � Surt 1 � ��_�� 1"`� ��x+ �SaprA. n05� nn�5=' Valley�lS� i�Cdy� -w, a i ��— FJ � t= � -..� I r, i - �I _ �w �, � � _ � _ --•- � � i 1 i , ao���� aaq�n � ,_ � ��._ � �'� � ��I I � I .`.�� ptm d . Ii voM R4ow�euJ '.C � - _'._�' � ` �z, . �.. I � o: ' � -.�'. _ i � : e . t !,��- � � ;/ i l I u � I ��^� w qam u, ! r i t�� � �j 2 .. ;C_ .-. � a,' ,/ "` j � ' + 1��-� mamll� '�^/F V I 7�Jn ���. ^Cm��y�y . � 9 J I � p BE11 6 ptlNi IU pp� 1 _� 2-� �� 1hnd� I� C��C r 2 �� -�' �. F � :��2 � A i�� O q0 9 �. � � ' l� �� ° � �� `hieC IIU' � � A� C'v.,-''Climmunm� o ` ,l�f } . . f,� j+ �. 1' S ��t .. ��� 01 iS a �er � � . V: � ��A �5.�,� i \v � , _ _" uln�l � �`� C �� ` � � �.A� � i �_ zco'f' I � ��//� i: � I ; ' � /�'.,�'•.-�'_' � � CT Y�n� �2s 3/ � I � � (�� �/` � � � � ' ig ���� i �. ���woo f�}��� inW I� � °�� � ' `C ���---+ p!a u�� n� .,� i�a (�' _ �� ��� �i''� I � � . i M � _- " � � .. e,n� rlao uni�NTnIN ���{.-4��.�, f �' -� � i , \ / .• I � � I � �. �'`� ` , 4 / PRQJECT AREA "y� � � �� �. �`�� _ C A � � �'A um�l1 h�+:.4��0� ! " r i - -' � I vF=-YN� water � � V i ' � ( � - � /' �� - ':�iWrnm �� i � I _ .i' � 1 � �. 4 a�ep ,r I {{ / ' ., Ranch� , � „� . �n Qn�ti�`� IA .-.a� � \ \\ � �\\ 's� �i ' - . -. . / � {- ��/Sxg� -' �_. � b �. ,�� qm�Q '� \ \ /y � �ola1J'�? � � .I�I } , ✓ �� � �-= s � 6n � � ��oiaoson � J ----„ �(� ��_ ��/�e�ii� \�: Hf //. �( Hc+i,SP�in6 j �� l \� H��em�t o._. JF e o� 1'�, r�. I�`i • . \ '1 , / n` � �1 � � I t \ ° l\ . li -,C�\� .. �� �� � �. � 1 �� . !��, �C tiVate '. 6: Bu.z ESA �'+��e � �� '� nil . {�' � � J�rv�� �imi� i /„( x�i��i. J� lf � �� I � I ���e� V � 'Wel � � � � .� C' W � .�/ � � �'�IA.. 9"' �,f \i � � � Y µ � k@{.i � `+ 1 _ / yF'_� r // .�.._ �t, � �.. ��.� r F,_ �.. .. ,� � % ��-v ��.( � � i i � e a u��5� � - �i � I� !( � ' �� � ' v � �I :..r�'"�J�4 -\ vbllef �� � `�� onK M?F[�t� � �it� � �� � � � 1 � . f �,� f —� i D6. ''' �JY� %� �� ddtnal��� T� �� i if�...� �� � � � � Ico�o7�,00 -L- j � - l �,o�c � �. g «amu� ."� : `�l ( i� � k� � � ,. �� S n � � �. ��,� . � I � 2 < v ntr d:�. I �, t. � 1 . �� i. i - � . � ,- r .� � � . �., C"- � � , � - ; r.Kpc�i�, C' � w�ir J'L _� i e �d �� � �� �.. � � ���'''rc� ��: G kS �I i � ��.� H S� ": . ( i r � ��� I ��viC� � �f '�POy��aane i�uu d! . i 7 �`� ma alrr . ( � i ( / �.� �G��' � ie r/ � ai ✓�' a i ,' ,J . � '�}� �Y � ,6. '%/.�� . /�:.. �!�1. ---� x , � � � r � �` � � l � ���'�'� � � ) �� �� ,- �— — — '- r x,wsn i '�� .. Har�p � r� 1 �fY ��� � , I�J�a Z � .1 � o ' - G'1"�}�1''C,t i^, .i t -� ��� l I� 'n n dt�� i � i �i � PECMANGA � I i > C ��} ' � Y`-v � , r �, � �� . - , .� ;�, �:� 'hI� 'y.;i`'.[ � t � . �- ' � 17 in�unnr.'MC7uNlniv "�/ � o . , - _�,.-��,'_INDIAN �+1 . l wito d�se I��aK . ancl �! � RpncM1 � �_'•i ( � i �.Y_ ��1 ��$ERVA.7—� 'S.'-j'. �4 � ��� ���p��� --�/ � � �� ir � i ' nch "I.� Cain I'/ ��I� � � '� �'��°a]t+ r �,., , ( � � � . '� � ( r � i OlYMAUS l � g p i� ' � 1�(�,,UA� TIBIA2 r., i14 �� .- L � .� �� �7� f� �''r�nbc ' a - � s � C�l��7 � r +lAil� s . n� ) � ^, � �� .,seo;M�uHinu� . �/ � � � �� � `� � I 1 � �'� ✓" -�� { l.,>� �^j ti waxa���.u�a � 7� b rl�� � I � �� �PI �� wlloEN7GGE5s� t 1 � �� j � - � / �u a stztwn \ I ) 1�, ��� �rous�uiWe oueeM._/ �LEVE4AI�D . NAT1sNA � � , ,,�� ,�— �� � : f � �'PL(� < � �- �'T� N- jr- .. , _. �� ,wca qes F� �,Fallb ook _ 1 � A 1� i �-e� i�} � �-.; � � �� �! r i � � � � �� -� I� �I:� 2 I�-dsp NG�N HIL ��.- zDOr J -� ��� � i � �� �.7 � i� I���� / . � �� ,, i !t j � � . -• 7. i �,. -- � -1 :�ir,7����i�T � ti�, ��� J`��_Zf ala. A ��n�h � PAVMA J ,.i 1'�!i . � � . hLi,' 'l ( Ir� � ��i 1 �:r'�NhWnl � � !F�nm'�ok i � ' i.fz i �`_�-_l I n' � , � ��' ""a' %','{�. �� Figure 1. Regional location ofthe project area as indicated on a portion ofthe USGS SanlaAnu 1:250,000 scale 'I'opographic Map Sheet (1959, revised 1979). -2- yJ� �.i � <�yi'Iw��,.. ,. �., ;.. �ii .. �. ', -' . � ,J,1 U', � � p , , ,; ' ; � U; �% � � �,,'�� i , ` � � , a , � , � t ' i� .J- i ., �, �''` � � � � �� �l � ,!✓ � i I `�'a� �� � � i �'Q � -� :. � � �+ /� � ,V � � � f � I � �, Q 9� V ��t t:� . Y n ��\ {� I� �. %�(��L. � Q�uR . C � � 1.� " 1 �'] � li, l�� " � O�Iti � . I � � �� _u_ ..� '. �� �" J%i� � ,� 3:�" / �, \� i, ����% i4 . . � �' ll ! ��i ' � �r /� �_ � ��� -� V � [ _ - u� .7 �� i 1 ��j � ��<; :�-18 ,�s �g � as� .� �a � ,�� 17 ��; � � . ,. '1,3e� � / J� � � ! I I � �-„ � , - � � � � ; � , ��� �i ���, � ��� �� l�,r l ,�frr� 51�.u_n��k�- � n�� �� �:' .� 1 � '�� ./ ���� /�� ; •�� r_ . � . i�'..- ;..- �,`�� � 11�� ,._:, y k�,�\� %- , Sl`Sj�• �_� ;� ,�-, k , � ,, r , � oi � U I 5i 1��� �A/', i. . � .. ,�' ��t�S�������'1 I uii'� 1 � '�� .�� �� ��� � �.�., �. - /'./ � n �S r `/`�'�.1._ � r ' � 1 � . � � ,- -' °'. ; f`� b� � ' - � c� � �1S - I.� 7 ' �. I ��� � � � ' . . tilr .. _ C: "I�✓��n0/1 �.Ao � � ��n' � :!l : " / �� �"� � � u � %L i: � ��\ �,� j, i i " II ol � N� �' - r..., . . c `' � I � 1 . . -� �� �- j t " . �t% d�-'_ � __ ��a""`i �r�ir� � `-� - . � 1,- i�sa � ! « -- ` Q �'° "'� � . � x � . �/ l i� J - ` l � TD+M 5 t� � " \� � f o ` � ' i �� � � �t _//� � ' � ... �1P � �� FJ�� 1/ : . �i � / i � ��� �; " I . ' �^ �,, %<`���.,/' �� ���5 ✓�_ � 1 . i. �'�� � - "' � C7 �' o� ;� V '. i�51 'q�� � . \, "� / fl : :} � , �- , :, i ,, I ;' - ;, i. � ,/, , ^ � . - �, . �` i � i: o . ,_ a�% I � �; �� v � �k //11 J C .1 � � '- ° �/ � .< ( .� � �"I o�� J i t,'�..� b` °� � _ J, r ri � .� � 19 � �vooJ�9 �• � l � i � �oq n i � �� � �� iw � r � , �(�, , : C �� ;rz���tiCti��, ��� �.�:i. , �STUDY AREA '' � c �:, � U ;4, . J . \ '. � � � � . � � � � , � � ia.� ,��� � .- i i��r-_' � ' . � � \ '� ' . l _ .'"' f� I - �zo0� f � // .._Ir.M' j� � , HOeD o . . � , �.. � � - t f - ... � _,� � � i ��_ � 7 � / ' .;. ,I / /�4 �� �O\ ���1 �., j ��� `. ".. � '� r � y� ; u . � � � ;� ;O � _ w � �— �- � „n � .� ; ` ie ; � - � �;,• � _ _ i � ��-.--� - ` �i � , ��� I..S, i m2 t�� -. ��-� l I ' r i �' t . . _"-ao�o t , .. y �,Z�3p , y ,. o �: r, � {'� � � ,,�� ,� /� ; ,' ':v � . ��. � ��.-, ? � �-�' `.I " _ I ;,�\ �, y �� ` ��' � � ( � � .;T-, . NiSB " , � a ti ''� � � o - 'l `�tij � '�'����"�� z - �i �� �;-- ,Z � �, � 'l - � � .� S `'- ` `1 � � � °", _ .'�' �'roo ` y - �-..�/, . �_ , . \ J . l , v 1, v �. , . /��.� � . , � � _i � � � ` f �� � � i � l ^� '�jl ' � � � Z9 i'� � .1�A �' _�: . i, r �� � i. � _ . � _ iJ00 - % .Sn �, , -�/�`i ' ti ,G .,� b ` ,: , _ . ' � �- � l.�ti '� ~~�'�`� `� J � � � . /�j�/� � -( � OiM..� .�dJ ,���_1 ��\�, �� i i... � - 1 .~J`_ i . ��1 ,� � 7.. 1 ` - '... _ �28 f � -_ c � /�.� � 4 �... / .. ✓� O� �'/ � � � \���:�` �J�O�"� ( n� -y,�-�_T � � / '� � , I �'tiir�t�0 �' r ' 1C _� % ��.= �\\ t .. � .. �..0 , � -. � i .. � � J C �_ I i � v ',! . {� ti � � � � ._ � ,-.� � ��/,�� � � .� .. / � i i i3� ).�� r i� ;<�� r „_ / � l .-., i i � i�CO���-""�i6�' �� � . j7 j � � �V � C r:�, ��� � _ �i -,_ .\�� . .P;�t .��,, 1 � :/ O C n . . T-f . � -_ �_ � �� � /' i � )'. �/��% I �.( � � 1A �i� '� ) .. j �,�� �� � � . , �j 1 I'O� C � ,�� � ` ira��e��,� _.?j.�✓r•� � d � ;"C ; i(',W` ^"l.J G` � Figure 2. Study area plotted on a portion oPthe Bachelor Mtn.7.5' Topographic Quadrangle (1973, photoinspected I978). -3- � C. Previous Survcys The results of the search indicated that no prior archaeological assessments have been conducted within the study area. I-lowever, approximately twenty surveys have been performed within a one-mile radius ofthe project. These investigations include both large and small acreage surveys as well as linear alignments (i.e. roads and pipelines). The largest study in the area comprised a cultural resources assessment of the 800-acre Roripaugh Ranch (Drover 1989). His investigation comprised an `'intuitive survey" as opposed to a standardized, systematic survey and resulted in the identification of one prehistoric site (RIV-3654). IV. HISTORIC MAP RESEARCH In addition to the records search, historic maps were inspected in the map room at the Science Library, Universiry of California at Riverside. A review of thc 1901 Elsinore 30' USGS "I'opographic Quadrangle, the 1942 Murrie[u I S' U.S. Army, Corps of Gngineers, War Department Quadrangle, and the 1953 Buchelor Mtn. 7.5' USGS Topographic Quadrangle failed to show any � structures or man-made features within the study area. Consequently, it appears that historically, the study area has always comprised vacant land. V. LAND PATFNTS Archival research also included a review of land patents on tile with the Bureau of Land Management ([3LM) in Sacramento. QLM General Land Office records show that the small parcel appears to have been part of two land patents. "I'he 160-acres comprising the Southwest 1/4 of Section 20, Township 7 South, Range 2 West, San Bernardino Base Meridian was issued to Joseph Nicholas on June 30, 1883 as part of a Cash Entry Sale (document # 981 and accession/serial # CACAAA 081304). The second patentcomprising the adjacent I 60-acres (Southeast 1/4 of Section 20) was also issued to Nicholas as part of a Cash Entry Sale dated March I5, I 884 (document # I 079/accession # CACAAA 081305. • -6- • VI. SACRED LANDS FILE CHECK On May 4, 2009, a Sacred Lands File Check for the project area was requested by Ms. Laura S. White, M.A. The search was conducted on May 12, 2009 by Mr. Dave Singleton, Program Analyst for the Native American Heritage Commission in Sacramento. The results of the search indicated that no sacred Native American sites have been recorded within the boundaries of the study area. A list of both individual and Native American groups was also provided for further consultation (see Appendix A). VII. NATNE AMERICAN CONSULTATION In order to learn more about the potential archaeological sensitivity of the project area, a letter of inquiry was sent to Mr. Paul Macarro, Acting Director, Cultural Resources forthe Temecula Band of Mission indians on May 5, 2009. A response to our inquiry was received from Ms. Anna Hoover, Cultural Analyst for Pechanga Cultural Resources (see Appendix [3). � VIII. FIELD RECONNAISSANCE A field reconnaissance oP the study area was conducted by Robert S. White (Principal Investigator) and Laura S White, M.A. (surveyor) on June 3, 2009. The pedestrian survey began atthe western end ofthe project and proceeded in an easterly direction. Surface visibility varied from 25 to 100% depending on the density ofthe low-Iying vegetation. Where feasible, the survey was conducted by walking parallel transects spaced at 5-meter intcrvals across the study area. Meandering transects were employed where parallel transects were impractical. The escarpments of the small drainage along the northeastern boundary were also checked for any signs of buried archaeologicaldeposits. IX. FINDINGS No prehistoric or historic resources ofi any kind were discovered during the course of the investigation. * -7 • Appendix A: NAHC Sacred Lands File Check • • � ARCHAEOLOGICAL ASSOCIATES �a a, zoo� Mr. Dave Singleton . Associate Govemmental Program Analyst Native American Hcritage Commission 915 Capital Mall, Room 3C4 Sacramcnto, CA 95814 RF,: Sacrrd Lands File Check for a 2.32-acre parcel (APN 957-I20-Oi9) IucateJ aJjacenl tu Calle Cirasol, Cih� otTemecula, Ri��erside Counh•. Dcar bic Singlcton: I am �3�riting to you to royuest a Sacred Lands File Check for the above-refercnced projeci. RrieOy, Archaeological Associates has been requested by the Ciry ofTemecula to provide infomiation with rcgard lo prchis�oric and historic resources in thc cicinit}' of thc projccL Thus, thc rcason for contacting your organiration. Presen�ly, project proponents plan to cnnstruct a church on the propeny. The study area is bounded by Callc Girasol on thc south and wes�, Aussie Avcnue on the north, and Je(frey Heigh�s Road on • the easL Legally. the project is situated within Seciirni 20, Township 7 South, Range 2 West, San Bcmardino Basc �lcridian (Hnchelnr A4omnain 7.5' USGS Topographic Quadranglc). 14'c look foru-urd to hcaring Gom you. In the meuntime, if you havc any questions or desire additional information, please do nm hesita�e �o contact me at (951) 244-1783. Very truly yours, �a,u.� �.cc�..a.�.. Laura S. \Vhi�c, ib1.A. Field Dircctor LS\V:filc;nuhacom A�• faa' P.O. Ro� 1 iS0 • Sun City, GA 9SHfi • �951) 23J-1783 FAX (9iU Za40083 .