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Home My WebLink AboutAppendix E - Water Quality Management PlanAppendix E Water Quality Management Plan Water Quality Management Plan MCN No. __________________ WQMP No. = For: FONTANA SQUARE, FONTANA GRDING PERMIT NO.= N/A, BUILDING PERMIT NO.= N/A, TRACT NUMBER = N/A, LAND DEVELOPMENT FILE NO.= N/A, APNs: 0228-301-01, 0228-301-02, 0228-301-03, 0228-301-04, 0228-301-05, 0228-301-06, 0228-301-07, 0228-301-08, 0228-301-20, 0228-301-21, 0228-301-22, 0228-301-23, 0228-301-33, 0228-301-34, 0228-301-35, 0228-301-36, 0228-301-37, 0228-301-38, 0228-301-39, 0228-301-40, 0228-301-41, 0228-301-42, 0228-301-43, 0228-301-44, 0228-301-45, 0228-301-46, 0228-301-47, 0228-301-48, 0228-301-49, 0228-301-51, and 0228-301-52 Prepared for: FONTANA SQUARE NWC Citrus & SO. Highland Avenue Fontana, CA 760-832-1760 Prepared by: Ace Design & Construction 1024 Iron Point Road,Suite No. 1046 Folsom, CA, 95630 702-786-0771 Submittal Date: 07/13/2021 Revision Date: Preliminary for Entitlements Complete Date: _____________________ Construction WQMP Complete Date: _____________________ Final WQMP Approved Date: _____________________ 1st ats 11/10/2020 Water Quality Management Plan (WQMP) Owner’s Certification Water Quality Management Plan (WQMP) Owner’s Certification Project Owner’s Certification This Water Quality Management Plan (WQMP) has been prepared for JINDER SINGH by ACE DESIGN & CONSTRUCTION. The WQMP is intended to comply with the requirements of the Insert Jurisdiction and the NPDES Areawide Stormwater Program requiring the preparation of a WQMP. The undersigned, while it owns the subject property, is responsible for the implementation of the provisions of this plan and will ensure that this plan is amended as appropriate to reflect up-to-date conditions on the site consistent with San Bernardino County’s Municipal Storm Water Management Program and the intent of the NPDES Permit for San Bernardino County and the incorporated cities of San Bernardino County within the Santa Ana Region. Once the undersigned transfers its interest in the property, its successors in interest and the city/county shall be notified of the transfer. The new owner will be informed of its responsibility under this WQMP. A copy of the approved WQMP shall be available on the subject site in perpetuity. “I certify under a penalty of law that the provisions (implementation, operation, maintenance, and funding) of the WQMP have been accepted and that the plan will be transferred to future successors.” Project Data Permit/Application Number(s): Grading Permit Number(s): Tract/Parcel Map Number(s): Building Permit Number(s): CUP, SUP, and/or APN (Specify Lot Numbers if Portions of Tract): Owner’s Signature Owner Name: Title Company Address Email Telephone # Signature Date 0228-301-01-0 JINDER SINGH 760-832-1760 MANAGING MEMBER NWC CITRUS AND SOUTH HIGHLAND AVENUE jindersingh@gmail.com 0228-301-01-0 N/A N/A FONTANA SQUARE, FONTANA PAM#19-133 Water Quality Management Plan (WQMP) Contents Preparer’s Certification Project Data Permit/Application Number(s): Grading Permit Number(s): Tract/Parcel Map Number(s): Building Permit Number(s): CUP, SUP, and/or APN (Specify Lot Numbers if Portions of Tract): “The selection, sizing and design of stormwater treatment and other stormwater quality and quantity control measures in this plan were prepared under my oversight and meet the requirements of Regional Water Quality Control Board Order No. R8-2010-0036.” Engineer: PE Stamp Below Title Company Address Email Telephone # Signature Date 0228-301-01-0 JASPAL SINGH SIDHU PRINCIPAL ACE DESIGN LLC 1024 IRON POINT ROAD, SUITE NO. 146, FOLSOM CA 95630 jaspal@aceengineering.us 702-429-7355 0228-301-01-0 N/A N/A PAM#19-133 Water Quality Management Plan (WQMP) Contents v Table of Contents Section 1 Discretionary Permits ......................................................................................... 1-1 Section 2 Project Description ............................................................................................... 2-1 2.1 Project Information ........................................................................................ 2-1 2.2 Property Ownership / Management .............................................................. 2-2 2.3 Potential Stormwater Pollutants ................................................................... 2-3 2.4 Water Quality Credits ........ ……………………………………………………………………………. 2-4 Section 3 Site and Watershed Description ......................................................................... 3-1 Section 4 Best Management Practices ................................................................................ 4-1 4.1 Source Control BMP ....................................................................................... 4-1 4.1.1 Pollution Prevention ................................................................................... 4-1 4.1.2 Preventative LID Site Design Practices ....................................................... 4-6 4.2 Project Performance Criteria......................................................................... 4-7 4.3 Project Conformance Analysis ....................................................................... 4-12 4.3.1 Site Design Hydrologic Source Control BMP .............................................. 4-14 4.3.2 Infiltration BMP .......................................................................................... 4-16 4.3.3 Harvest and Use BMP .................................................................................. 4-18 4.3.4 Biotreatment BMP....................................................................................... 4.19 4.3.5 Conformance Summary ............................................................................... 4-23 4.3.6 Hydromodification Control BMP ............................................................... 4-24 4.4 Alternative Compliance Plan (if applicable) ................................................. 4-25 Section 5 Inspection & Maintenance Responsibility Post Construction BMPs ................. 5-1 Section 6 Site Plan and Drainage Plan ................................................................................ 6-1 6.1. Site Plan and Drainage Plan.......................................................................... 6-1 6.2 Electronic Data Submittal ............................................................................. 6-1 Forms Form 1-1 Project Information ............................................................................................... 1-1 Form 2.1-1 Description of Proposed Project ......................................................................... 2-1 Form 2.2-1 Property Ownership/Management ..................................................................... 2-2 Form 2.3-1 Pollutants of Concern ......................................................................................... 2-3 Form 2.4-1 Water Quality Credits ......................................................................................... 2-4 Form 3-1 Site Location and Hydrologic Features ................................................................. 3-1 Form 3-2 Hydrologic Characteristics .................................................................................... 3-2 Form 3-3 Watershed Description .......................................................................................... 3-3 Form 4.1-1 Non-Structural Source Control BMP ................................................................... 4-2 Form 4.1-2 Structural Source Control BMP .......................................................................... 4-4 Form 4.1-3 Site Design Practices Checklist ........................................................................... 4-6 Form 4.2-1 LID BMP Performance Criteria for Design Capture Volume ............................. 4-7 Form 4.2-2 Summary of HCOC Assessment .......................................................................... 4-8 Form 4.2-3 HCOC Assessment for Runoff Volume ............................................................... 4-9 Form 4.2-4 HCOC Assessment for Time of Concentration .................................................. 4-10 Water Quality Management Plan (WQMP) Contents vi Form 4.2-5 HCOC Assessment for Peak Runoff .................................................................... 4-11 Form 4.3-1 Infiltration BMP Feasibility ................................................................................ 4-13 Form 4.3-2 Site Design Hydrologic Source Control BMP ..................................................... 4-14 Form 4.3-3 Infiltration LID BMP ........................................................................................... 4-17 Form 4.3-4 Harvest and Use BMP ......................................................................................... 4-18 Form 4.3-5 Selection and Evaluation of Biotreatment BMP ................................................ 4-19 Form 4.3-6 Volume Based Biotreatment – Bioretention and Planter Boxes w/Underdrains 4-20 Form 4.3-7 Volume Based Biotreatment- Constructed Wetlands and Extended Detention 4-21 Form 4.3-8 Flow Based Biotreatment ................................................................................... 4-22 Form 4.3-9 Conformance Summary and Alternative Compliance Volume Estimate .......... 4-23 Form 4.3-10 Hydromodification Control BMP ..................................................................... 4-24 Form 5-1 BMP Inspection and Maintenance ........................................................................ 5-1 Water Quality Management Plan (WQMP) 1-1 Section 1 Discretionary Permit(s) Form 1-1 Project Information Project Name Project Owner Contact Name: Mailing Address: E-mail Address:Telephone: Permit/Application Number(s): Tract/Parcel Map Number(s): Additional Information/ Comments: Description of Project: Provide summary of Conceptual WQMP conditions (if previously submitted and approved). Attach complete copy. COMMERCIAL DEVELOPMENT JINDER SINGH NWC CITRUS AND SOUTH HIGHLAND AVENUE, FONTANA, CA jindersingh@gmail.com 760-832-1760 PAM#19-133 0228-301-01-0 The proposed Fontana Square site is located south of Route 210, north of S Highland Avenue, West of Catawba Avenue and east of Citrus Avenue in City of Fontana, California as shown on the Vicinity Map, refer Appendix 1. The total area of the hotel site is 386644 sf (8.876 acres). A Banquet Hall (1 story), Holiday Inn Express Hotel & Suites (104 rooms, 5 story), Staybridge Suites (117 rooms, 5 story), Restaurant (1 story) and an In-n-out Burger Store (1 story) are proposed here.There is an existing eccentric Cul-d-sac from Route-210 and some power lines passing through the project site. The City will relocate the Cul-d-sac and power lines out of the project boundary. In the existing conditions, the site is undeveloped and majority of the site drains in south direction and there is an average fall of around 8-10 feet through the width of the site towards South Highland Avenue. South Highland Avenue slopes from east to west. and In the proposed condition, all site is divided into six DMA's. The majority of overflow from Retention basins from the site to the existing public storm drainage facility on southeast corner of the site. The grading for the project site and Bio Retention basins is planned in such a way that overflow from Bio Retention basins from two third of the site area is routed to the existing storm drain manhole, located in the South-East corner of the site on Citrus avenue via a network of onsite storm drains.Also, this project lies in Category 2 (Routine Street/Road Maintenance Projects) per Appendix A - Transportation Project BMP Guidance, Hence this project is exempted from street improvements. THERE IS NO CONCEPTUAL WQMP CONDITIONS. Water Quality Management Plan (WQMP) 2-1 Section 2 Project Description 2.1 Project Information This section of the WQMP should provide the information listed below. The information provided for Conceptual/ Preliminary WQMP should give sufficient detail to identify the major proposed site design and LID BMPs and other anticipated water quality features that impact site planning. Final Project WQMP must specifically identify all BMP incorporated into the final site design and provide other detailed information as described herein. The purpose of this information is to help determine the applicable development category, pollutants of concern, watershed description, and long term maintenance responsibilities for the project, and any applicable water quality credits. This information will be used in conjunction with the information in Section 3, Site Description, to establish the performance criteria and to select the LID BMP or other BMP for the project or other alternative programs that the project will participate in, which are described in Section 4. Form 2.1-1 Description of Proposed Project 1 Development Category (Select all that apply): Significant re-development involving the addition or replacement of 5,000 ft2 or more of impervious surface on an already developed site New development involving the creation of 10,000 ft2 or more of impervious surface collectively over entire site Automotive repair shops with standard industrial classification (SIC) codes 5013, 5014, 5541, 7532- 7534, 7536-7539 Restaurants (with SIC code 5812) where the land area of development is 5,000 ft2 or more Hillside developments of 5,000 ft2 or more which are located on areas with known erosive soil conditions or where the natural slope is 25 percent or more Developments of 2,500 ft2 of impervious surface or more adjacent to (within 200 ft) or discharging directly into environmentally sensitive areas or waterbodies listed on the CWA Section 303(d) list of impaired waters. Parking lots of 5,000 ft2 or more exposed to storm water Retail gasoline outlets that are either 5,000 ft2 or more, or have a projected average daily traffic of 100 or more vehicles per day Non-Priority / Non-Category Project May require source control LID BMPs and other LIP requirements. Please consult with local jurisdiction on specific requirements. 2 Project Area (ft2):3 Number of Dwelling Units:4 SIC Code: 5 Is Project going to be phased? Yes No If yes, ensure that the WQMP evaluates each phase as a distinct DA, requiring LID BMPs to address runoff at time of completion. 6 Does Project include roads? Yes No If yes, ensure that applicable requirements for transportation projects are addressed (see Appendix A of TGD for WQMP) 386644 2 hotels, 184 rooms N/A Water Quality Management Plan (WQMP) 2-2 2.2 Property Ownership/Management Describe the ownership/management of all portions of the project and site. State whether any infrastructure will transfer to public agencies (City, County, Caltrans, etc.) after project completion. State if a homeowners or property owners association will be formed and be responsible for the long-term maintenance of project stormwater facilities. Describe any lot-level stormwater features that will be the responsibility of individual property owners. Form 2.2-1 Property Ownership/Management Describe property ownership/management responsible for long-term maintenance of WQMP stormwater facilities: THE PROPERTY IS OWNED AND WILL BE MAINTAINED BY INDER SINGH, MANAGING MEMBER, FONTANA SQUARE, FONTANA. INDER SINGH, MANAGING MEMBER, FONTANA SQUARE, FONTANA WILL BE RESPONSIBLE FOR THE LONG-TERM MAINTENANCE OF THE WQMP STORM WATER FACILITIES DESCRIBED WITHIN. Water Quality Management Plan (WQMP) 2-3 2.3 Potential Stormwater Pollutants Determine and describe expected stormwater pollutants of concern based on land uses and site activities (refer to Table 3-3 in the TGD for WQMP). Form 2.3-1 Pollutants of Concern Pollutant Please check: E=Expected, N=Not Expected Additional Information and Comments Pathogens (Bacterial / Virus) E N Nutrients - Phosphorous E N Nutrients - Nitrogen E N Noxious Aquatic Plants E N Sediment E N Metals E N Oil and Grease E N Trash/Debris E N Pesticides / Herbicides E N Organic Compounds E N Other: E N Other: E N Other: E N Other: E N Other: E N Water Quality Management Plan (WQMP) 2-4 2.4 Water Quality Credits A water quality credit program is applicable for certain types of development projects if it is not feasible to meet the requirements for on-site LID. Proponents for eligible projects, as described below, can apply for water quality credits that would reduce project obligations for selecting and sizing other treatment BMP or participating in other alternative compliance programs. Refer to Section 6.2 in the TGD for WQMP to determine if water quality credits are applicable for the project. Form 2.4-1 Water Quality Credits 1 Project Types that Qualify for Water Quality Credits: Select all that apply Redevelopment projects that reduce the overall impervious footprint of the project site. [Credit = % impervious reduced] Higher density development projects Vertical density [20%] 7 units/ acre [5%] Mixed use development, (combination of residential, commercial, industrial, office, institutional, or other land uses which incorporate design principles that demonstrate environmental benefits not realized through single use projects) [20%] Brownfield redevelopment (redevelop real property complicated by presence or potential of hazardous contaminants) [25%] Redevelopment projects in established historic district, historic preservation area, or similar significant core city center areas [10%] Transit-oriented developments (mixed use residential or commercial area designed to maximize access to public transportation) [20%] In-fill projects (conversion of empty lots & other underused spaces < 5 acres, substantially surrounded by urban land uses, into more beneficially used spaces, such as residential or commercial areas) [10%] Live-Work developments (variety of developments designed to support residential and vocational needs) [20%] 2 Total Credit %(Total all credit percentages up to a maximum allowable credit of 50 percent) Description of Water Quality Credit Eligibility (if applicable) Water Quality Management Plan (WQMP) 3-5 Section 3 Site and Watershed Description Describe the project site conditions that will facilitate the selection of BMP through an analysis of the physical conditions and limitations of the site and its receiving waters. Identify distinct drainage areas (DA) that collect flow from a portion of the site and describe how runoff from each DA (and sub-watershed DMAs) is conveyed to the site outlet(s). Refer to Section 3.2 in the TGD for WQMP. The form below is provided as an example. Then complete Forms 3.2 and 3.3 for each DA on the project site. If the project has more than one drainage area for stormwater management, then complete additional versions of these forms for each DA / outlet. Form 3-1 Site Location and Hydrologic Features Site coordinates take GPS measurement at approximate center of site Latitude Longitude Google Maps 1 San Bernardino County climatic region: Valley Mountain 2 Does the site have more than one drainage area (DA): Yes No If no, proceed to Form 3-2. If yes, then use this form to show a conceptual schematic describing DMAs and hydrologic feature connecting DMAs to the site outlet(s). An example is provided below that can be modified for proposed project or a drawing clearly showing DMA and flow routing may be attached Example only – modify for project specific WQMP using additional form Conveyance Briefly describe on-site drainage features to convey runoff that is not retained within a DMA DA 1 DMA 1 to SW corner of S. Highland Ave The runoff from drainage area #1 flows to Basin #1, and overflow from this bio retention area is proposed to drain to South-West corner of site to S Highland Avenue. DA 2 DMA 2 to S. Highland Ave DA 3 DMA 3 to S. Highland Ave DA 4 DMA 4 to ex. manhole in SE corner of Citrus Ave DA 4 Ex. Manhole DA5 34.135483 -117.455977 DMA 4 DMA 5 The runoff from drainage area #2 flows to Basin #2, and overflow from this bio retention area is proposed to drain to S Highland Avenue. DA6 DMA 6 The runoff from drainage area #3 flows to Basin #3, and overflow from this bio retention area is proposed to drain to S Highland Avenue. The runoff from drainage area #4 flows to Basin #4, and overflow from this bio retention area will flow to onsite storm drain network connected to the ex. drainage manhole in the SE corner of project site in Citrus Avenue.DA 5 DMA 5 to ex. manhole in SE corner of Citrus Ave The runoff from drainage area #5 flows to Basin #5, and overflow from this bio retention area will flow to onsite storm drain network connected to the ex. drainage manhole in the SE corner of project site in Citrus Avenue. The runoff from drainage area #6 flows to Basin #6, and overflow from this bio retention area will flow to onsite storm drain network connected to the ex. drainage manhole in the SE corner of project site in Citrus Avenue. DA 6 DMA 6 to ex. manhole in SE corner of Citrus Ave DA 1 Overflow to S. Highland Avenue DA 2 DMA 1 DMA 2 DA 3 DMA 3 Water Quality Management Plan (WQMP) 3-6 Form 3-2 Existing Hydrologic Characteristics for Drainage Area #1 For Drainage Area 1’s sub-watershed DMA, provide the following characteristics DMA #1 DMA B DMA C DMA D 1 DMA drainage area (ft2) 2 Existing site impervious area (ft2) 3 Antecedent moisture condition For desert areas, use http://www.sbcounty.gov/dpw/floodcontrol/pdf/2 0100412_map.pdf 4 Hydrologic soil group Refer to Watershed Mapping Tool – http://permitrack.sbcounty.gov/wap/ 5 Longest flowpath length (ft) 6 Longest flowpath slope (ft/ft) 7 Current land cover type(s) Select from Fig C-3 of Hydrology Manual 8 Pre-developed pervious area condition: Based on the extent of wet season vegetated cover good >75%; Fair 50-75%; Poor <50% Attach photos of site to support rating 0 I A 290 0.022 Grass, Annual, perninal GOOD 29,850 Water Quality Management Plan (WQMP) 3-6.1 Form 3-2 Existing Hydrologic Characteristics for Drainage Area #2 For Drainage Area 1’s sub-watershed DMA, provide the following characteristics DMA A DMA #2 DMA C DMA D 1 DMA drainage area (ft2) 2 Existing site impervious area (ft2) 3 Antecedent moisture condition For desert areas, use http://www.sbcounty.gov/dpw/floodcontrol/pdf/2 0100412_map.pdf 4 Hydrologic soil group Refer to Watershed Mapping Tool – http://permitrack.sbcounty.gov/wap/ 5 Longest flowpath length (ft) 6 Longest flowpath slope (ft/ft) 7 Current land cover type(s) Select from Fig C-3 of Hydrology Manual 8 Pre-developed pervious area condition: Based on the extent of wet season vegetated cover good >75%; Fair 50-75%; Poor <50% Attach photos of site to support rating 84,552 0 / Grass, Annual, perninal 'KK 545 0.0012 Water Quality Management Plan (WQMP) 3-6.2 Form 3-2 Existing Hydrologic Characteristics for Drainage Area η3 For Drainage Area 1’s sub-watershed DMA, provide the following characteristics DMA A DMA B DMA #3 DMA D 1 DMA drainage area (ft2) 2 Existing site impervious area (ft2) 3 Antecedent moisture condition&ŽƌĚĞƐĞƌƚ ĂƌĞĂƐ͕ƵƐĞ ŚƚƚƉ͗ͬͬǁǁǁ͘ƐďĐŽƵŶƚǇ͘ŐŽǀͬĚƉǁͬĨůŽŽĚĐŽŶƚƌŽůͬƉĚĨͬϮ ϬϭϬϬϰϭϮͺŵĂƉ͘ƉĚĨ 4 Hydrologic soil group ZĞĨĞƌƚŽtĂƚĞƌƐŚĞĚ DĂƉƉŝŶŐdŽŽůʹ ŚƚƚƉ͗ͬͬƉĞƌŵŝƚƌĂĐŬ͘ƐďĐŽƵŶƚǇ͘ŐŽǀͬǁĂƉͬ 5 Longest flowpath length (ft) 6 Longest flowpath slope (ft/ft) 7 Current land cover type(s) ^ĞůĞĐƚĨƌŽŵ&ŝŐͲϯ ŽĨ,ǇĚƌŽůŽŐǇDĂŶƵĂů 8 Pre-developed pervious area condition: ĂƐĞĚŽŶƚŚĞĞǆƚĞŶƚŽĨǁĞƚƐĞĂƐŽŶǀĞŐĞƚĂƚĞĚĐŽǀĞƌ ŐŽŽĚхϳϱй͖&ĂŝƌϱϬͲϳϱй͖WŽŽƌфϱϬйƚƚĂĐŚƉŚŽƚŽƐ ŽĨƐŝƚĞƚŽƐƵƉƉŽƌƚƌĂƚŝŶŐ 53325 0 / Grass, Annual, perninal 'KK 435 0.0046 Water Quality Management Plan (WQMP) 3-6.3 Form 3-2 Existing Hydrologic Characteristics for Drainage Area η4 For Drainage Area 1’s sub-watershed DMA, provide the following characteristics DMA A DMA B DMA C DMA #4 1 DMA drainage area (ft2) 2 Existing site impervious area (ft2) 3 Antecedent moisture condition&ŽƌĚĞƐĞƌƚ ĂƌĞĂƐ͕ƵƐĞ ŚƚƚƉ͗ͬͬǁǁǁ͘ƐďĐŽƵŶƚǇ͘ŐŽǀͬĚƉǁͬĨůŽŽĚĐŽŶƚƌŽůͬƉĚĨͬϮ ϬϭϬϬϰϭϮͺŵĂƉ͘ƉĚĨ 4 Hydrologic soil group ZĞĨĞƌƚŽtĂƚĞƌƐŚĞĚ DĂƉƉŝŶŐdŽŽůʹ ŚƚƚƉ͗ͬͬƉĞƌŵŝƚƌĂĐŬ͘ƐďĐŽƵŶƚǇ͘ŐŽǀͬǁĂƉͬ 5 Longest flowpath length (ft) 6 Longest flowpath slope (ft/ft) 7 Current land cover type(s) ^ĞůĞĐƚĨƌŽŵ&ŝŐͲϯ ŽĨ,ǇĚƌŽůŽŐǇDĂŶƵĂů 8 Pre-developed pervious area condition: ĂƐĞĚŽŶƚŚĞĞǆƚĞŶƚŽĨǁĞƚƐĞĂƐŽŶǀĞŐĞƚĂƚĞĚĐŽǀĞƌ ŐŽŽĚхϳϱй͖&ĂŝƌϱϬͲϳϱй͖WŽŽƌфϱϬйƚƚĂĐŚƉŚŽƚŽƐ ŽĨƐŝƚĞƚŽƐƵƉƉŽƌƚƌĂƚŝŶŐ 124235 0 / Grass, Annual, perninal 'KK 715 0.0046 Water Quality Management Plan (WQMP) 3-7 Form 3-2 Existing Hydrologic Characteristics for Drainage Area 5 (use only as needed for additional DMA w/in DA 1) For Drainage Area 1’s sub-watershed DMA, provide the following characteristics DMA #5 DMA F DMA G DMA H 1 DMA drainage area (ft2) 2 Existing site impervious area (ft2) 3 Antecedent moisture condition For desert areas, use http://www.sbcounty.gov/dpw/floodcontrol/pdf/2 0100412_map.pdf 4 Hydrologic soil group Refer to Watershed Mapping Tool – http://permitrack.sbcounty.gov/wap/ 5 Longest flowpath length (ft) 6 Longest flowpath slope (ft/ft) 7 Current land cover type(s) Select from Fig C-3 of Hydrology Manual 8 Pre-developed pervious area condition: Based on the extent of wet season vegetated cover good >75%; Fair 50-75%; Poor <50% Attach photos of site to support rating 14,652 0 / Grass, Annual, perninal 'KK 0.0086 498 Water Quality Management Plan (WQMP) 3-7.1 Form 3-2 Existing Hydrologic Characteristics for Drainage Area 6 (use only as needed for additional DMA w/in DA 1) For Drainage Area 1’s sub-watershed DMA, provide the following characteristics DMA E DMA #6 DMA G DMA H 1 DMA drainage area (ft2) 2 Existing site impervious area (ft2) 3 Antecedent moisture condition For desert areas, use http://www.sbcounty.gov/dpw/floodcontrol/pdf/2 0100412_map.pdf 4 Hydrologic soil group Refer to Watershed Mapping Tool – http://permitrack.sbcounty.gov/wap/ 5 Longest flowpath length (ft) 6 Longest flowpath slope (ft/ft) 7 Current land cover type(s) Select from Fig C-3 of Hydrology Manual 8 Pre-developed pervious area condition: Based on the extent of wet season vegetated cover good >75%; Fair 50-75%; Poor <50% Attach photos of site to support rating 0 / Grass, Annual, perninal 'KK 125 0.0028 71,924 Water Quality Management Plan (WQMP) 3-8 Form 3-3 Watershed Description for Drainage Area Receiving waters Refer to Watershed Mapping Tool - http://permitrack.sbcounty.gov/wap/ See ‘Drainage Facilities” link at this website Applicable TMDLs Refer to Local Implementation Plan 303(d) listed impairments Refer to Local Implementation Plan and Watershed Mapping Tool – http://permitrack.sbcounty.gov/wap/ and State Water Resources Control Board website – http://www.waterboards.ca.gov/santaana/water_iss ues/programs/tmdl/index.shtml Environmentally Sensitive Areas (ESA) Refer to Watershed Mapping Tool – http://permitrack.sbcounty.gov/wap/ Unlined Downstream Water Bodies Refer to Watershed Mapping Tool – http://permitrack.sbcounty.gov/wap/ Hydrologic Conditions of Concern Yes Complete Hydrologic Conditions of Concern (HCOC) Assessment. Include Forms 4.2-2 through Form 4.2-5 and Hydromodification BMP Form 4.3-10 in submittal No Watershed–based BMP included in a RWQCB approved WAP Yes Attach verification of regional BMP evaluation criteria in WAP • More Effective than On-site LID • Remaining Capacity for Project DCV • Upstream of any Water of the US • Operational at Project Completion • Long-Term Maintenance Plan No Highland Channel, Etiwanda Creek Channel (north of Foothill Blvd), Etiwanda/ San Sevaine Channel, Santa Ana River Reach 3, Prado Basin, Santa Ana River Reach 2, Santa Ana River Reach 1, Pacific Ocean. Copper, Lead & Pathogens Yes, Pathogens, and Metals None Santa Ana River Reach-3 Water Quality Management Plan (WQMP) 4-1 Section 4 Best Management Practices (BMP) 4.1 Source Control BMP 4.1.1 Pollution Prevention Non-structural and structural source control BMP are required to be incorporated into all new development and significant redevelopment projects. Form 4.1-1 and 4.1-2 are used to describe specific source control BMPs used in the WQMP or to explain why a certain BMP is not applicable. Table 7-3 of the TGD for WQMP provides a list of applicable source control BMP for projects with specific types of potential pollutant sources or activities. The source control BMP in this table must be implemented for projects with these specific types of potential pollutant sources or activities. The preparers of this WQMP have reviewed the source control BMP requirements for new development and significant redevelopment projects. The preparers have also reviewed the specific BMP required for project as specified in Forms 4.1-1 and 4.1-2. All applicable non-structural and structural source control BMP shall be implemented in the project. Included Not Applicable N1 Education of Property Owners, Tenants, and Occuants on Stormwater BMPs Fontana Lodging LLC staff will be given copies of the environmental awareness education materials. Fontana Lodging, LLC will establish requiremets for the implementation of an awareness program that informs staff and contractors of the impacts of dumping oil, paints, solvents or other potentially harmful chemicals into the storm drain; the proper use and management of fertilizers, pesticides and herbicides in landscaping practices. The staff should also stress to all employees and contractors that there are prohibited activities on site and they must be adhered to at all times. The prohibitive activities are mentioned, but not limited in the following Activity Restrictions (N2). This shall be administrated quarterly via information newletters. Additionally, environmental awareness education materials, including, but not limited to those included in Attachment A of this WQMP, shall be provided to all staff/lessees/contractors. The educational materials available from the County Stormwater Program can be downloaded at http://www.sbcountystormwater.org. N2 Activity Restrictions The following prohibitions and restrictions shall be enforced: 1. Discharge of fertilizers, pesticides, or animal wastes to public Right-Of-Way or storm drains are prohibited. 2.Blowing sweeping of debris (leaf litter, grass clippings, litter, etc.) into public Right-Of-Way or storm drains is prohibited. 3. Trash receptacles shall have a watertight lid and be covered or sheltered by a roof overhang or canopy. 4. Discharges of motor oil or grease wastes to public Right-Of-Way or storm drains are prohibited. 5. Do not use detergents or other chemical additives when washing concrete sidewalks or building exteriors. Use potable water only and collect runoff using a vacuum truck for proper offsite disposal. N3 Common Area Landscape Management Ongoing maintenance shall be consistent with City and County water conservation guidelines. Any fertilizer and/or pesticide usage shall be consistent with City and County ise guidelines and per manufacturer's recommendations. Fontana Lodgig, LLC shall be the mechanism to ensure compliance with N3. Lnadscaping areas shall be inspected for signs of erosion, vegetation health and mulch depth regularly with landscaping maintenance activities or at minimum once per month. Identified eroded areas, decaying or dying vegetation and bare areas shall be repaired, replaced and/or mulched as soon as possible to minimize exposed sediment and potential for erosion. Form 4.1-1 Non-Structural Source Control BMPs Identifier Name Check One Describe BMP Implementation OR, if not applicable, state reason 4-2 Water Quality Management Plan (WQMP) N4 BMP Maintenance Include annually maintenance and inspection N5 Title 22 CCR Compliance (How development will comply)No Hazardous waste generation on project N6 Local Water Quality Ordinances WQMP is complied with the Local Water Quality Ordinances N7 Spil Contingency Plan No outdoor storage of equipment, equipment repair & maintenance or fuel dispensing areas present on project N8 Underground Storage Tank Compliance No underground Storage Tanks at the project N9 Hazardous Materials Disclousre Compliance No Hazardous waste generation on project N10 Uniform Fire Code Implementation Property not fall under the uniform fire code. N11 Litter/ Debris Control Program It consists of litter patrol, emptying of trash receptacles in common areas, and noting trash disposal violations by tenants/homeowners or businesses N12 Employee Training Provide training on the proper storage and use of fertilizers and pesticides to the employees and all provisions of this WQMP N13 Housekeeping of Loading Docks Park tank trucks or delivery vehicles in designated areas so that spills or leaks can be contained N14 Catch Basin Inspection Program Cleaning of storm drains should take place in the late summer/early fall prior to the start of the rainy season N15 Vacuum Sweeping of Private Streets and Parking Lots All paved areas of a business shall be vacuum swept, in late summer or early fall, prior to the start of the rainy season or equivalent, as required by the governing jurisdiction N16 Other Non-structural Measures for Public Agency Projects No public agency projects N17 Comply with all other applicable NPDES permits 4-3 Water Quality Management Plan (WQMP) Water Quality Management Plan (WQMP) 4-4 Form 4.1-2 Structural Source Control BMPs Identifier Name Check One Describe BMP Implementation OR, If not applicable, state reason Included Not Applicable S1 Provide storm drain system stencilling and signage (CASQA New Development BMP Handbook SD-13) S2 Design and construct outdoor material storage areas to reduce pollution introduction (CASQA New Development BMP Handbook SD-34) S3 Design and construct trash and waste storage areas to reduce pollution introduction (CASQA New Development BMP Handbook SD-32) S4 Use efficient irrigation systems & landscape design, water conservation, smart controllers, and source control (Statewide Model Landscape Ordinance; CASQA New Development BMP Handbook SD-12) S5 Finish grade of landscaped areas at a minimum of 1-2 inches below top of curb, sidewalk, or pavement S6 Protect slopes and channels and provide energy dissipation (CASQA New Development BMP Handbook SD-10) S7 Covered dock areas (CASQA New Development BMP Handbook SD-31) S8 Covered maintenance bays with spill containment plans (CASQA New Development BMP Handbook SD-31) S9 Vehicle wash areas with spill containment plans (CASQA New Development BMP Handbook SD-33) S10 Covered outdoor processing areas (CASQA New Development BMP Handbook SD-36) The stencils contain a brief statement that prohibits the dumping of improper materials into the MS4. Graphical icons, either illustrating anti-dumping symbolsare effective supplements to the anti-dumping message No hazardous materials are present on site. All trash container areas are paved with an impervious surface, designed not to allow run-on from adjoining areas and Provide solid roof or awning to prevent exposure to direct precipitation. It includes selection of plants requiring less water,development of water budgets for landscaping, use of recycled water if available, routine irrigation audits, and scheduling of irrigation based on localized climate. Finish grade of landscaped areas is provided at a depth more than minimum requirements. Because there are no such steeper slopes No Loading docks present on project. No outdoor storage of equipment, equipment repair & maintenance or fuel dispensing areas present on project. Project does not include areas for washing /steam cleaning of vehicles No outdoor processes are done on site Water Quality Management Plan (WQMP) 4-5 Form 4.1-2 Structural Source Control BMPs Identifier Name Check One Describe BMP Implementation OR, If not applicable, state reason Included Not Applicable S11 Equipment wash areas with spill containment plans (CASQA New Development BMP Handbook SD-33) S12 Fueling areas (CASQA New Development BMP Handbook SD-30) S13 Hillside landscaping (CASQA New Development BMP Handbook SD-10) S14 Wash water control for food preparation areas S15 Community car wash racks (CASQA New Development BMP Handbook SD-33) No such areas are present on site No Fuel dispensing areas are present on site Not a hillside project No food preparation areas are proposed Car washing is not there Water Quality Management Plan (WQMP) 4-6 4.1.2 Preventative LID Site Design Practices Site design practices associated with new LID requirements in the MS4 Permit should be considered in the earliest phases of a project. Preventative site design practices can result in smaller DCV for LID BMP and hydromodification control BMP by reducing runoff generation. Describe site design and drainage plan including: Refer to Section 5.2 of the TGD for WQMP for more details. Form 4.1-3 Preventative LID Site Design Practices Checklist Site Design Practices If yes, explain how preventative site design practice is addressed in project site plan. If no, other LID BMPs must be selected to meet targets Minimize impervious areas: Yes No Explanation: No Maximize natural infiltration capacity: Yes Explanation: Preserve existing drainage patterns and time of concentration: Yes No Explanation: Disconnect impervious areas: Yes No Explanation: Protect existing vegetation and sensitive areas: Yes No Explanation: Re-vegetate disturbed areas: Yes No Explanation: Minimize unnecessary compaction in stormwater retention/infiltration basin/trench areas: Yes No Explanation: Utilize vegetated drainage swales in place of underground piping or imperviously lined swales: Yes No Explanation: Stake off areas that will be used for landscaping to minimize compaction during construction : Yes No Explanation: ▪A narrative of site design practices utilized or rationale for not using practices ▪A narrative of how site plan incorporates preventive site design practices ▪Include an attached Site Plan layout which shows how preventative site design practices are included in WQMP New drainage pattern is provided Curb openings are provided There is no natural vegetation present at site Disturbed area will be landscaped. Concrete swales are provided instead of vegetated drainage swales There is enough landscape area for runoff from impervious area , so no need to minimize the impervious area Heavy machinery shall be actively prohibited from long term contact with any surface within an infiltration BMP area, to maximize natural infiltration capacity. No stakes will be used for landscaping. There is enough natural infiltration capacity in the soil , so no need to maximize natural infiltration capacity. Water Quality Management Plan (WQMP) 4-7 4.2 Project Performance Criteria The purpose of this section of the Project WQMP is to establish targets for post-development hydrology based on performance criteria specified in the MS4 Permit. These targets include runoff volume for water quality control (referred to as LID design capture volume), and runoff volume, time of concentration, and peak runoff for protection of any downstream waterbody segments with a HCOC. If the project has more than one outlet for stormwater runoff, then complete additional versions of these forms for each DA / outlet. Methods applied in the following forms include: ▪For LID BMP Design Capture Volume (DCV), the San Bernardino County Stormwater Program requires use of the P6 method (MS4 Permit Section XI.D.6a.ii) – Form 4.2-1 ▪For HCOC pre- and post-development hydrologic calculation, the San Bernardino County Stormwater Program requires the use of the Rational Method (San Bernardino County Hydrology Manual Section D). Forms 4.2-2 through Form 4.2-5 calculate hydrologic variables including runoff volume, time of concentration, and peak runoff from the project site pre- and post-development using the Hydrology Manual Rational Method approach. For projects greater than 640 acres (1.0 mi2), the Rational Method and these forms should not be used. For such projects, the Unit Hydrograph Method (San Bernardino County Hydrology Manual Section E) shall be applied for hydrologic calculations for HCOC performance criteria. Refer to Section 4 in the TGD for WQMP for detailed guidance and instructions. Form 4.2-1 LID BMP Performance Criteria for Design Capture Volume (DA #1) 1 Project area DA 1 (ft2):Runoff Coefficient (Rc): _ Rc = 0.858(Imp%)^3-0.78(Imp%)^2+0.774(Imp%)+0.04 4 Determine 1-hour rainfall depth for a 2-year return period P2yr-1hr (in):http://hdsc.nws.noaa.gov/hdsc/pfds/sa/sca_pfds.html Compute P , Mean 6-hr Precipitation (inches): P6 = Item 4 *C1, where C1 is a function of site climatic region specified in Form 3-1 Item 1 (Valley = 1.4807; Mountain = 1.909; Desert = 1.2371) 6 Drawdown Rate Use 48 hours as the default condition. Selection and use of the 24 hour drawdown time condition is subject to approval by the local jurisdiction. The necessary BMP footprint is a function of drawdown time. While shorter drawdown times reduce the performance criteria for LID BMP design capture volume, the depth of water that can be stored is also reduced. 24-hrs 48-hrs 7 Compute design capture volume, DCV (ft3): DCV = 1/12 * [Item 1* Item 3 *Item 5 * C2], where C2 is a function of drawdown rate (24-hr = 1.582; 48-hr = 1.963) Compute separate DCV for each outlet from the project site per schematic drawn in Form 3-1 Item 2 29,850 3 0.552 0.684 5 6 1.01 48 2729.80 2. Imperviousness after applying preventative site design practices (Imp%) : 75.78 Water Quality Management Plan (WQMP) 4-7.1 Form 4.2-1 LID BMP Performance Criteria for Design Capture Volume (DA #2) 1 Project area DA 2 (ft2): 4 Determine 1-hour rainfall depth for a 2-year return period P2yr-1hr (in) http://hdsc.nws.noaa.gov/hdsc/pfds/sa/sca_pfds.html Compute P , Mean 6-hr Precipitation (inches): P6 = Item 4 *C1, where C1 is a function of site climatic region specified in Form 3-1 Item 1 (Valley = 1.4807; Mountain = 1.909; Desert = 1.2371) 6 Drawdown Rate Use 48 hours as the default condition. Selection and use of the 24 hour drawdown time condition is subject to approval by the local jurisdiction. The necessary BMP footprint is a function of drawdown time. While shorter drawdown times reduce the performance criteria for LID BMP design capture volume, the depth of water that can be stored is also reduced. 24-hrs 48-hrs 84,552 3 Runoff Coefficient (Rc): _ Ϭ͘611 Rc = 0.858(Imp%)^3-0.78(Imp%)^2+0.774(Imp%)+0.04 :0.684 5 6 ϰϴ 7 Compute design capture volume, DCV (ft3): 8562.07 DCV = 1/12 * [Item 1* Item 3 *Item 5 * C2], where C2 is a function of drawdown rate (24-hr = 1.582; 48-hr = 1.963) Compute separate DCV for each outlet from the project site per schematic drawn in Form 3-1 Item 2 1.01 2. Imperviousness after applying preventative site design practices (Imp%) : 81.00 Water Quality Management Plan (WQMP) 4-7.2 Form 4.2-1 LID BMP Performance Criteria for Design Capture Volume (DA #3) 1 Project area DA 3 (ft2): 4 Determine 1-hour rainfall depth for a 2-year return period P2yr-1hr (in): ŚƚƚƉ͗ͬͬŚĚƐĐ͘ŶǁƐ͘ŶŽĂĂ͘ŐŽǀͬŚĚƐĐͬƉĨĚƐͬƐĂͬƐĐĂͺƉĨĚƐ͘Śƚŵů Wϲс/ƚĞŵϰΎϭ͕ǁŚĞƌĞϭŝƐĂĨƵŶĐƚŝŽŶŽĨƐŝƚĞĐůŝŵĂƚŝĐƌĞŐŝŽŶƐƉĞĐŝĨŝĞĚŝŶ&ŽƌŵϯͲϭ/ƚĞŵϭ;sĂůůĞǇсϭ͘ϰϴϬϳ͖DŽƵŶƚĂŝŶсϭ͘ϵϬϵ͖ĞƐĞƌƚсϭ͘ϮϯϳϭͿ 6 Drawdown Rate hƐĞϰϴŚŽƵƌƐĂƐƚŚĞĚĞĨĂƵůƚĐŽŶĚŝƚŝŽŶ͘^ĞůĞĐƚŝŽŶĂŶĚƵƐĞŽĨƚŚĞϮϰŚŽƵƌĚƌĂǁĚŽǁŶƚŝŵĞĐŽŶĚŝƚŝŽŶŝƐƐƵďũĞĐƚƚŽĂƉƉƌŽǀĂů ďǇƚŚĞůŽĐĂůũƵƌŝƐĚŝĐƚŝŽŶ͘dŚĞŶĞĐĞƐƐĂƌǇDWĨŽŽƚƉƌŝŶƚŝƐĂĨƵŶĐƚŝŽŶŽĨĚƌĂǁĚŽǁŶƚŝŵĞ͘tŚŝůĞƐŚŽƌƚĞƌĚƌĂǁĚŽǁŶƚŝŵĞƐ ƌĞĚƵĐĞƚŚĞƉĞƌĨŽƌŵĂŶĐĞĐƌŝƚĞƌŝĂĨŽƌ>/DWĚĞƐŝŐŶĐĂƉƚƵƌĞǀŽůƵŵĞ͕ƚŚĞĚĞƉƚŚŽĨǁĂƚĞƌƚŚĂƚĐĂŶďĞƐƚŽƌĞĚŝƐĂůƐŽ ƌĞĚƵĐĞĚ͘ 24-hrs 48-hrs 53325 0.684 5 Compute P6 , Mean 6-hr Precipitation (inches): 1.01 ϰϴ 7 Compute design capture volume, DCV (ft3): 5296.56 sсϭͬϭϮΎ΀/ƚĞŵϭΎ/ƚĞŵϯΎ/ƚĞŵϱΎϮ΁͕ǁŚĞƌĞϮŝƐĂĨƵŶĐƚŝŽŶŽĨĚƌĂǁĚŽǁŶƌĂƚĞ;ϮϰͲŚƌсϭ͘ϱϴϮ͖ϰϴͲŚƌсϭ͘ϵϲϯͿ ŽŵƉƵƚĞƐĞƉĂƌĂƚĞsĨŽƌĞĂĐŚŽƵƚůĞƚĨƌŽŵƚŚĞƉƌŽũĞĐƚƐŝƚĞƉĞƌƐĐŚĞŵĂƚŝĐĚƌĂǁŶŝŶ&ŽƌŵϯͲϭ/ƚĞŵϮ 3 Runoff Coefficient (Rc): _ Ϭ͘600 Rc = 0.858(Imp%)^3-0.78(Imp%)^2+0.774(Imp%)+0.04 2. Imperviousness after applying preventative site design practices (Imp%) : 80.02 Water Quality Management Plan (WQMP) 4-7.2 Form 4.2-1 LID BMP Performance Criteria for Design Capture Volume (DA #4) 1 Project area DA 4 (ft2): 4 Determine 1-hour rainfall depth for a 2-year return period P2yr-1hr (in): ŚƚƚƉ͗ͬͬŚĚƐĐ͘ŶǁƐ͘ŶŽĂĂ͘ŐŽǀͬŚĚƐĐͬƉĨĚƐͬƐĂͬƐĐĂͺƉĨĚƐ͘Śƚŵů Wϲс/ƚĞŵϰΎϭ͕ǁŚĞƌĞϭŝƐĂĨƵŶĐƚŝŽŶŽĨƐŝƚĞĐůŝŵĂƚŝĐƌĞŐŝŽŶƐƉĞĐŝĨŝĞĚŝŶ&ŽƌŵϯͲϭ/ƚĞŵϭ;sĂůůĞǇсϭ͘ϰϴϬϳ͖DŽƵŶƚĂŝŶсϭ͘ϵϬϵ͖ĞƐĞƌƚсϭ͘ϮϯϳϭͿ 6 Drawdown Rate hƐĞϰϴŚŽƵƌƐĂƐƚŚĞĚĞĨĂƵůƚĐŽŶĚŝƚŝŽŶ͘^ĞůĞĐƚŝŽŶĂŶĚƵƐĞŽĨƚŚĞϮϰŚŽƵƌĚƌĂǁĚŽǁŶƚŝŵĞĐŽŶĚŝƚŝŽŶŝƐƐƵďũĞĐƚƚŽĂƉƉƌŽǀĂů ďǇƚŚĞůŽĐĂůũƵƌŝƐĚŝĐƚŝŽŶ͘dŚĞŶĞĐĞƐƐĂƌǇDWĨŽŽƚƉƌŝŶƚŝƐĂĨƵŶĐƚŝŽŶŽĨĚƌĂǁĚŽǁŶƚŝŵĞ͘tŚŝůĞƐŚŽƌƚĞƌĚƌĂǁĚŽǁŶƚŝŵĞƐ ƌĞĚƵĐĞƚŚĞƉĞƌĨŽƌŵĂŶĐĞĐƌŝƚĞƌŝĂĨŽƌ>/DWĚĞƐŝŐŶĐĂƉƚƵƌĞǀŽůƵŵĞ͕ƚŚĞĚĞƉƚŚŽĨǁĂƚĞƌƚŚĂƚĐĂŶďĞƐƚŽƌĞĚŝƐĂůƐŽ ƌĞĚƵĐĞĚ͘ 24-hrs 48-hrs 124235 0.684 5 Compute P6 , Mean 6-hr Precipitation (inches): 1.01 ϰϴ 7 Compute design capture volume, DCV (ft3): 13060.82 sсϭͬϭϮΎ΀/ƚĞŵϭΎ/ƚĞŵϯΎ/ƚĞŵϱΎϮ΁͕ǁŚĞƌĞϮŝƐĂĨƵŶĐƚŝŽŶŽĨĚƌĂǁĚŽǁŶƌĂƚĞ;ϮϰͲŚƌсϭ͘ϱϴϮ͖ϰϴͲŚƌсϭ͘ϵϲϯͿ ŽŵƉƵƚĞƐĞƉĂƌĂƚĞsĨŽƌĞĂĐŚŽƵƚůĞƚĨƌŽŵƚŚĞƉƌŽũĞĐƚƐŝƚĞƉĞƌƐĐŚĞŵĂƚŝĐĚƌĂǁŶŝŶ&ŽƌŵϯͲϭ/ƚĞŵϮ 2. Imperviousness after applying preventative site design practices (Imp%) : 82.83 3 Runoff Coefficient (Rc): _ Ϭ͘635 Rc = 0.858(Imp%)^3-0.78(Imp%)^2+0.774(Imp%)+0.04 Water Quality Management Plan (WQMP) 4-7.2 Form 4.2-1 LID BMP Performance Criteria for Design Capture Volume (DA #5) 1 Project area DA 5 (ft2): 4 Determine 1-hour rainfall depth for a 2-year return period P2yr-1hr (in): ŚƚƚƉ͗ͬͬŚĚƐĐ͘ŶǁƐ͘ŶŽĂĂ͘ŐŽǀͬŚĚƐĐͬƉĨĚƐͬƐĂͬƐĐĂͺƉĨĚƐ͘Śƚŵů Wϲс/ƚĞŵϰΎϭ͕ǁŚĞƌĞϭŝƐĂĨƵŶĐƚŝŽŶŽĨƐŝƚĞĐůŝŵĂƚŝĐƌĞŐŝŽŶƐƉĞĐŝĨŝĞĚŝŶ&ŽƌŵϯͲϭ/ƚĞŵϭ;sĂůůĞǇсϭ͘ϰϴϬϳ͖DŽƵŶƚĂŝŶсϭ͘ϵϬϵ͖ĞƐĞƌƚсϭ͘ϮϯϳϭͿ 6 Drawdown Rate hƐĞϰϴŚŽƵƌƐĂƐƚŚĞĚĞĨĂƵůƚĐŽŶĚŝƚŝŽŶ͘^ĞůĞĐƚŝŽŶĂŶĚƵƐĞŽĨƚŚĞϮϰŚŽƵƌĚƌĂǁĚŽǁŶƚŝŵĞĐŽŶĚŝƚŝŽŶŝƐƐƵďũĞĐƚƚŽĂƉƉƌŽǀĂů ďǇƚŚĞůŽĐĂůũƵƌŝƐĚŝĐƚŝŽŶ͘dŚĞŶĞĐĞƐƐĂƌǇDWĨŽŽƚƉƌŝŶƚŝƐĂĨƵŶĐƚŝŽŶŽĨĚƌĂǁĚŽǁŶƚŝŵĞ͘tŚŝůĞƐŚŽƌƚĞƌĚƌĂǁĚŽǁŶƚŝŵĞƐ ƌĞĚƵĐĞƚŚĞƉĞƌĨŽƌŵĂŶĐĞĐƌŝƚĞƌŝĂĨŽƌ>/DWĚĞƐŝŐŶĐĂƉƚƵƌĞǀŽůƵŵĞ͕ƚŚĞĚĞƉƚŚŽĨǁĂƚĞƌƚŚĂƚĐĂŶďĞƐƚŽƌĞĚŝƐĂůƐŽ ƌĞĚƵĐĞĚ͘ 24-hrs 48-hrs 14,652 0.684 5 Compute P6 , Mean 6-hr Precipitation (inches): 1.01 ϰϴ 7 Compute design capture volume, DCV (ft3): 881.29 sсϭͬϭϮΎ΀/ƚĞŵϭΎ/ƚĞŵϯΎ/ƚĞŵϱΎϮ΁͕ǁŚĞƌĞϮŝƐĂĨƵŶĐƚŝŽŶŽĨĚƌĂǁĚŽǁŶƌĂƚĞ;ϮϰͲŚƌсϭ͘ϱϴϮ͖ϰϴͲŚƌсϭ͘ϵϲϯͿ ŽŵƉƵƚĞƐĞƉĂƌĂƚĞsĨŽƌĞĂĐŚŽƵƚůĞƚĨƌŽŵƚŚĞƉƌŽũĞĐƚƐŝƚĞƉĞƌƐĐŚĞŵĂƚŝĐĚƌĂǁŶŝŶ&ŽƌŵϯͲϭ/ƚĞŵϮ 2.Imperviousness after applying preventative site design practices (Imp%) : 53.47 3 Runoff Coefficient (Rc): _ Ϭ͘363 Rc = 0.858(Imp%)^3-0.78(Imp%)^2+0.774(Imp%)+0.04 Water Quality Management Plan (WQMP) 4-7.2 Form 4.2-1 LID BMP Performance Criteria for Design Capture Volume (DA #6) 1 Project area DA 6 (ft2): 4 Determine 1-hour rainfall depth for a 2-year return period P2yr-1hr (in): ŚƚƚƉ͗ͬͬŚĚƐĐ͘ŶǁƐ͘ŶŽĂĂ͘ŐŽǀͬŚĚƐĐͬƉĨĚƐͬƐĂͬƐĐĂͺƉĨĚƐ͘Śƚŵů Wϲс/ƚĞŵϰΎϭ͕ǁŚĞƌĞϭŝƐĂĨƵŶĐƚŝŽŶŽĨƐŝƚĞĐůŝŵĂƚŝĐƌĞŐŝŽŶƐƉĞĐŝĨŝĞĚŝŶ&ŽƌŵϯͲϭ/ƚĞŵϭ;sĂůůĞǇсϭ͘ϰϴϬϳ͖DŽƵŶƚĂŝŶсϭ͘ϵϬϵ͖ĞƐĞƌƚсϭ͘ϮϯϳϭͿ 6 Drawdown Rate hƐĞϰϴŚŽƵƌƐĂƐƚŚĞĚĞĨĂƵůƚĐŽŶĚŝƚŝŽŶ͘^ĞůĞĐƚŝŽŶĂŶĚƵƐĞŽĨƚŚĞϮϰŚŽƵƌĚƌĂǁĚŽǁŶƚŝŵĞĐŽŶĚŝƚŝŽŶŝƐƐƵďũĞĐƚƚŽĂƉƉƌŽǀĂů ďǇƚŚĞůŽĐĂůũƵƌŝƐĚŝĐƚŝŽŶ͘dŚĞŶĞĐĞƐƐĂƌǇDWĨŽŽƚƉƌŝŶƚŝƐĂĨƵŶĐƚŝŽŶŽĨĚƌĂǁĚŽǁŶƚŝŵĞ͘tŚŝůĞƐŚŽƌƚĞƌĚƌĂǁĚŽǁŶƚŝŵĞƐ ƌĞĚƵĐĞƚŚĞƉĞƌĨŽƌŵĂŶĐĞĐƌŝƚĞƌŝĂĨŽƌ>/DWĚĞƐŝŐŶĐĂƉƚƵƌĞǀŽůƵŵĞ͕ƚŚĞĚĞƉƚŚŽĨǁĂƚĞƌƚŚĂƚĐĂŶďĞƐƚŽƌĞĚŝƐĂůƐŽ ƌĞĚƵĐĞĚ͘ 24-hrs 48-hrs 71,924 Ϭ͘684 5 Compute P6 , Mean 6-hr Precipitation (inches): 1.01 ϰϴ 7 Compute design capture volume, DCV (ft3): 7589.94 sсϭͬϭϮΎ΀/ƚĞŵϭΎ/ƚĞŵϯΎ/ƚĞŵϱΎϮ΁͕ǁŚĞƌĞϮŝƐĂĨƵŶĐƚŝŽŶŽĨĚƌĂǁĚŽǁŶƌĂƚĞ;ϮϰͲŚƌсϭ͘ϱϴϮ͖ϰϴͲŚƌсϭ͘ϵϲϯͿ ŽŵƉƵƚĞƐĞƉĂƌĂƚĞsĨŽƌĞĂĐŚŽƵƚůĞƚĨƌŽŵƚŚĞƉƌŽũĞĐƚƐŝƚĞƉĞƌƐĐŚĞŵĂƚŝĐĚƌĂǁŶŝŶ&ŽƌŵϯͲϭ/ƚĞŵϮ 2. Imperviousness after applying preventative site design practices (Imp%) : 83.10 3 Runoff Coefficient (Rc): _ Ϭ͘637 Rc = 0.858(Imp%)^3-0.78(Imp%)^2+0.774(Imp%)+0.04 Water Quality Management Plan (WQMP) 4-8 Form 4.2-2 Summary of HCOC Assessment (DA 1 to DA 6) Does project have the potential to cause or contribute to an HCOC in a downstream channel: Yes No Go to: http://permitrack.sbcounty.gov/wap/ If “Yes”, then complete HCOC assessment of site hydrology for 2yr storm event using Forms 4.2-3 through 4.2-5 and insert results below (Forms 4.2-3 through 4.2-5 may be replaced by computer software analysis based on the San Bernardino County Hydrology Manual) If “No,” then proceed to Section 4.3 Project Conformance Analysis Condition Runoff Volume (ft3) Time of Concentration (min) Peak Runoff (cfs) Pre-developed 1 Form 4.2-3 Item 12 2 Form 4.2-4 Item 13 3 Form 4.2-5 Item 10 Post-developed 4 Form 4.2-3 Item 13 5 Form 4.2-4 Item 14 6 Form 4.2-5 Item 14 Difference 7 Item 4 – Item 1 8 Item 2 – Item 5 9 Item 6 – Item 3 Difference (as % of pre-developed) 10 % Item 7 / Item 1 11 % Item 8 / Item 2 12 % Item 9 / Item 3 0.0 0.0 0.0 0.00.00.0 0.0 0.00.0 0.00.00.0 Water Quality Management Plan (WQMP) 4-9 Form 4.2-3 HCOC Assessment for Runoff Volume (DA 1) Weighted Curve Number Determination for: Pre-developed DA DMA A DMA B DMA C DMA D DMA E DMA F DMA G DMA H 1a Land Cover type 2a Hydrologic Soil Group (HSG) 3a DMA Area, ft2 sum of areas of DMA should equal area of DA 4a Curve Number (CN) use Items 1 and 2 to select the appropriate CN from Appendix C-2 of the TGD for WQMP Weighted Curve Number Determination for: Post-developed DA DMA A DMA B DMA C DMA D DMA E DMA F DMA G DMA H 1b Land Cover type 2b Hydrologic Soil Group (HSG) 3b DMA Area, ft2 sum of areas of DMA should equal area of DA 4b Curve Number (CN) use Items 5 and 6 to select the appropriate CN from Appendix C-2 of the TGD for WQMP 5 Pre-Developed area-weighted CN: 7 Pre-developed soil storage capacity, S (in): S = (1000 / Item 5) - 10 9 Initial abstraction, Ia (in): Ia = 0.2 * Item 7 6 Post-Developed area-weighted CN: 8 Post-developed soil storage capacity, S (in): S = (1000 / Item 6) - 10 10 Initial abstraction, Ia (in): Ia = 0.2 * Item 8 11 Precipitation for 2 yr, 24 hr storm (in): Go to: http://hdsc.nws.noaa.gov/hdsc/pfds/sa/sca_pfds.html 12 Pre-developed Volume (ft3): Vpre =(1 / 12) * (Item sum of Item 3) * [(Item 11 – Item 9)^2 / ((Item 11 – Item 9 + Item 7) 13 Post-developed Volume (ft3): Vpre =(1 / 12) * (Item sum of Item 3) * [(Item 11 – Item 10)^2 / ((Item 11 – Item 10 + Item 8) 14 Volume Reduction needed to meet HCOC Requirement, (ft3): VHCOC = (Item 13 * 0.95) – Item 12 0.00 0.00 0.00 Water Quality Management Plan (WQMP) 4-10 Form 4.2-4 HCOC Assessment for Time of Concentration (DA 1 to DA 6) Compute time of concentration for pre and post developed conditions for each DA (For projects using the Hydrology Manual complete the form below) Variables Pre-developed DA1 Use additional forms if there are more than 4 DMA Post-developed DA1 Use additional forms if there are more than 4 DMA DMA A DMA B DMA C DMA D DMA A DMA B DMA C DMA D 1 Length of flowpath (ft) Use Form 3-2 Item 5 for pre-developed condition 2 Change in elevation (ft) 3 Slope (ft/ft), So = Item 2 / Item 1 4 Land cover 5 Initial DMA Time of Concentration (min) Appendix C-1 of the TGD for WQMP 6 Length of conveyance from DMA outlet to project site outlet (ft) May be zero if DMA outlet is at project site outlet 7 Cross-sectional area of channel (ft2) 8 Wetted perimeter of channel (ft) 9 Manning’s roughness of channel (n) 10 Channel flow velocity (ft/sec) Vfps = (1.49 / Item 9) * (Item 7/Item 8)^0.67 * (Item 3)^0.5 11 Travel time to outlet (min) Tt = Item 6 / (Item 10 * 60) 12 Total time of concentration (min) Tc = Item 5 + Item 11 13 Pre-developed time of concentration (min): Minimum of Item 12 pre-developed DMA 14 Post-developed time of concentration (min):Minimum of Item 12 post-developed DMA 15 Additional time of concentration needed to meet HCOC requirement (min):TC-HCOC = (Item 13 * 0.95) – Item 14 0.00 0.00 0.00 Water Quality Management Plan (WQMP) 4-11 Form 4.2-5 HCOC Assessment for Peak Runoff (DA 1 to DA 6) Compute peak runoff for pre- and post-developed conditions Variables Pre-developed DA to Project Outlet (Use additional forms if more than 3 DMA) Post-developed DA to Project Outlet (Use additional forms if more than 3 DMA) DMA A DMA B DMA C DMA A DMA B DMA C 1 Rainfall Intensity for storm duration equal to time of concentration Ipeak = 10^(LOG Form 4.2-1 Item 4 - 0.6 LOG Form 4.2-4 Item 5 /60) 2 Drainage Area of each DMA (Acres) For DMA with outlet at project site outlet, include upstream DMA (Using example schematic in Form 3-1, DMA A will include drainage from DMA C) 3 Ratio of pervious area to total area For DMA with outlet at project site outlet, include upstream DMA (Using example schematic in Form 3-1, DMA A will include drainage from DMA C) 4 Pervious area infiltration rate (in/hr) Use pervious area CN and antecedent moisture condition with Appendix C-3 of the TGD for WQMP 5 Maximum loss rate (in/hr) Fm = Item 3 * Item 4 Use area-weighted Fm from DMA with outlet at project site outlet, include upstream DMA (Using example schematic in Form 3-1, DMA A will include drainage from DMA C) 6 Peak Flow from DMA (cfs) Qp =Item 2 * 0.9 * (Item 1 - Item 5) 7 Time of concentration adjustment factor for other DMA to site discharge point Form 4.2-4 Item 12 DMA / Other DMA upstream of site discharge point (If ratio is greater than 1.0, then use maximum value of 1.0) DMA A n/a n/a DMA B n/a n/a DMA C n/a n/a 8 Pre-developed Qp at Tc for DMA A: Qp = Item 6DMAA + [Item 6DMAB * (Item 1DMAA - Item 5DMAB)/(Item 1DMAB - Item 5DMAB)* Item 7DMAA/2] + [Item 6DMAC * (Item 1DMAA - Item 5DMAC)/(Item 1DMAC - Item 5DMAC)* Item 7DMAA/3] 9 Pre-developed Qp at Tc for DMA B: Qp = Item 6DMAB + [Item 6DMAA * (Item 1DMAB - Item 5DMAA)/(Item 1DMAA - Item 5DMAA)* Item 7DMAB/1] + [Item 6DMAC * (Item 1DMAB - Item 5DMAC)/(Item 1DMAC - Item 5DMAC)* Item 7DMAB/3] 10 Pre-developed Qp at Tc for DMA C: Qp = Item 6DMAC + [Item 6DMAA * (Item 1DMAC - Item 5DMAA)/(Item 1DMAA - Item 5DMAA)* Item 7DMAC/1] + [Item 6DMAB * (Item 1DMAC - Item 5DMAB)/(Item 1DMAB - Item 5DMAB)* Item 7DMAC/2] 10 Peak runoff from pre-developed condition confluence analysis (cfs): Maximum of Item 8, 9, and 10 (including additional forms as needed) 11 Post-developed Qp at Tc for DMA A: Same as Item 8 for post-developed values 12 Post-developed Qp at Tc for DMA B: Same as Item 9 for post-developed values 13 Post-developed Qp at Tc for DMA C: Same as Item 10 for post-developed values 14 Peak runoff from post-developed condition confluence analysis (cfs): Maximum of Item 11, 12, and 13 (including additional forms as needed) 15 Peak runoff reduction needed to meet HCOC Requirement (cfs): Qp-HCOC = (Item 14 * 0.95) – Item 10 0.00 0.00 0.00 Water Quality Management Plan (WQMP) 4-12 4.3 Project Conformance Analysis Complete the following forms for each project site DA to document that the proposed LID BMPs conform to the project DCV developed to meet performance criteria specified in the MS4 Permit (WQMP Template Section 4.2). For the LID DCV, the forms are ordered according to hierarchy of BMP selection as required by the MS4 Permit (see Section 5.3.1 in the TGD for WQMP). The forms compute the following for on-site LID BMP: ▪Site Design and Hydrologic Source Controls (Form 4.3-2) ▪Retention and Infiltration (Form 4.3-3) ▪Harvested and Use (Form 4.3-4) or ▪Biotreatment (Form 4.3-5). At the end of each form, additional fields facilitate the determination of the extent of mitigation provided by the specific BMP category, allowing for use of the next category of BMP in the hierarchy, if necessary. The first step in the analysis, using Section 5.3.2.1 of the TGD for WQMP, is to complete Forms 4.3-1 and 4.3-3) to determine if retention and infiltration BMPs are infeasible for the project. For each feasibility criterion in Form 4.3-1, if the answer is “Yes,” provide all study findings that includes relevant calculations, maps, data sources, etc. used to make the determination of infeasibility. Next, complete Forms 4.3-2 and 4.3-4 to determine the feasibility of applicable HSC and harvest and use BMPs, and, if their implementation is feasible, the extent of mitigation of the DCV. If no site constraints exist that would limit the type of BMP to be implemented in a DA, evaluate the use of combinations of LID BMPs, including all applicable HSC BMPs to maximize on-site retention of the DCV. If no combination of BMP can mitigate the entire DCV, implement the single BMP type, or combination of BMP types, that maximizes on-site retention of the DCV within the minimum effective area. If the combination of LID HSC, retention and infiltration, and harvest and use BMPs are unable to mitigate the entire DCV, then biotreatment BMPs may be implemented by the project proponent. If biotreatment BMPs are used, then they must be sized to provide sufficient capacity for effective treatment of the remainder of the volume-based performance criteria that cannot be achieved with LID BMPs (TGD for WQMP Section 5.4.4.2). Under no circumstances shall any portion of the DCV be released from the site without effective mitigation and/or treatment. Water Quality Management Plan (WQMP) 4-13 Form 4.3-1 Infiltration BMP Feasibility (DA 1 to DA 6) Feasibility Criterion – Complete evaluation for each DA on the Project Site 1 Would infiltration BMP pose significant risk for groundwater related concerns? Yes No Refer to Section 5.3.2.1 of the TGD for WQMP If Yes, Provide basis: (attach) 2 Would installation of infiltration BMP significantly increase the risk of geotechnical hazards? Yes No (Yes, if the answer to any of the following questions is yes, as established by a geotechnical expert): •The location is less than 50 feet away from slopes steeper than 15 percent •The location is less than eight feet from building foundations or an alternative setback. •A study certified by a geotechnical professional or an available watershed study determines that stormwater infiltration would result in significantly increased risks of geotechnical hazards. If Yes, Provide basis: (attach) 3 Would infiltration of runoff on a Project site violate downstream water rights? Yes No If Yes, Provide basis: (attach) 4 Is proposed infiltration facility located on hydrologic soil group (HSG) D soils or does the site geotechnical investigation indicate presence of soil characteristics, which support categorization as D soils? Yes No If Yes, Provide basis: (attach) 5 Is the design infiltration rate, after accounting for safety factor of 2.0, below proposed facility less than 0.3 in/hr (accounting for soil amendments)? Yes No If Yes, Provide basis: (attach) 6 Would on-site infiltration or reduction of runoff over pre-developed conditions be partially or fully inconsistent with watershed management strategies as defined in the WAP, or impair beneficial uses? Yes No See Section 3.5 of the TGD for WQMP and WAP If Yes, Provide basis: (attach) 7 Any answer from Item 1 through Item 3 is “Yes”: Yes No If yes, infiltration of any volume is not feasible onsite. Proceed to Form 4.3-4, Harvest and Use BMP. If no, then proceed to Item 8 below. 8 Any answer from Item 4 through Item 6 is “Yes”: Yes No If yes, infiltration is permissible but is not required to be considered. Proceed to Form 4.3-2, Hydrologic Source Control BMP. If no, then proceed to Item 9, below. 9 All answers to Item 1 through Item 6 are “No”: Infiltration of the full DCV is potentially feasible, LID infiltration BMP must be designed to infiltrate the full DCV to the MEP. Proceed to Form 4.3-2, Hydrologic Source Control BMP. Water Quality Management Plan (WQMP) 4-14 4.3.1 Site Design Hydrologic Source Control BMP Section XI.E. of the Permit emphasizes the use of LID preventative measures; and the use of LID HSC BMPs reduces the portion of the DCV that must be addressed in downstream BMPs. Therefore, all applicable HSC shall be provided except where they are mutually exclusive with each other, or with other BMPs. Mutual exclusivity may result from overlapping BMP footprints such that either would be potentially feasible by itself, but both could not be implemented. Please note that while there are no numeric standards regarding the use of HSC, if a project cannot feasibly meet BMP sizing requirements or cannot fully address HCOCs, feasibility of all applicable HSC must be part of demonstrating that the BMP system has been designed to retain the maximum feasible portion of the DCV. Complete Form 4.3-2 to identify and calculate estimated retention volume from implementing site design HSC BMP. Refer to Section 5.4.1 in the TGD for more detailed guidance. Form 4.3-2 Site Design Hydrologic Source Control BMPs (DA1 to DA6) 1 Implementation of Impervious Area Dispersion BMP (i.e. routing runoff from impervious to pervious areas), excluding impervious areas planned for routing to on-lot infiltration BMP: Yes No If yes, complete Items 2-5; If no, proceed to Item 6 DA DMA BMP Type DA DMA BMP Type DA DMA BMP Type (Use additional forms for more BMPs) 2 Total impervious area draining to pervious area (ft2) 3 Ratio of pervious area receiving runoff to impervious area 4 Retention volume achieved from impervious area dispersion (ft3) V = Item2 * Item 3 * (0.5/12), assuming retention of 0.5 inches of runoff 5 Sum of retention volume achieved from impervious area dispersion (ft3): Vretention =Sum of Item 4 for all BMPs 6 Implementation of Localized On-lot Infiltration BMPs (e.g. on-lot rain gardens): Yes No If yes, complete Items 7- 13 for aggregate of all on-lot infiltration BMP in each DA; If no, proceed to Item 14 DA DMA BMP Type DA DMA BMP Type DA DMA BMP Type (Use additional forms for more BMPs) 7 Ponding surface area (ft2) 8 Ponding depth (ft) 9 Surface area of amended soil/gravel (ft2) 10 Average depth of amended soil/gravel (ft) 11 Average porosity of amended soil/gravel 12 Retention volume achieved from on-lot infiltration (ft3) Vretention = (Item 7 *Item 8) + (Item 9 * Item 10 * Item 11) 13 Runoff volume retention from on-lot infiltration (ft3):Vretention =Sum of Item 12 for all BMPs 0.00 0.00 0.00 0 0 0 Water Quality Management Plan (WQMP) 4-15 Form 4.3-2 cont. Site Design Hydrologic Source Control BMPs (DA 1 to DA 6) 14 Implementation of evapotranspiration BMP (green, brown, or blue roofs): Yes No If yes, complete Items 15-20. If no, proceed to Item 21 DA DMA BMP Type DA DMA BMP Type DA DMA BMP Type (Use additional forms for more BMPs) 15 Rooftop area planned for ET BMP (ft2) 16 Average wet season ET demand (in/day) Use local values, typical ~ 0.1 17 Daily ET demand (ft3/day) Item 15 * (Item 16 / 12) 18 Drawdown time (hrs) Copy Item 6 in Form 4.2-1 19 Retention Volume (ft3) Vretention = Item 17 * (Item 18 / 24) 20 Runoff volume retention from evapotranspiration BMPs (ft3): Vretention =Sum of Item 19 for all BMPs 21 Implementation of Street Trees: Yes No If yes, complete Items 22-25. If no, proceed to Item 26 DA DMA BMP Type DA DMA BMP Type DA DMA BMP Type (Use additional forms for more BMPs) 22 Number of Street Trees 23 Average canopy cover over impervious area (ft2) 24 Runoff volume retention from street trees (ft3) Vretention = Item 22 * Item 23 * (0.05/12) assume runoff retention of 0.05 inches 25 Runoff volume retention from street tree BMPs (ft3): Vretention = Sum of Item 24 for all BMPs 26 Implementation of residential rain barrel/cisterns: Yes No If yes, complete Items 27-29; If no, proceed to Item 30 DA DMA BMP Type DA DMA BMP Type DA DMA BMP Type (Use additional forms for more BMPs) 27 Number of rain barrels/cisterns 28 Runoff volume retention from rain barrels/cisterns (ft3) Vretention = Item 27 * 3 29 Runoff volume retention from residential rain barrels/Cisterns (ft3): Vretention =Sum of Item 28 for all BMPs 30 Total Retention Volume from Site Design Hydrologic Source Control BMPs:0 0 48 0 0 48 0 0 48 0 0 0 0 0 0 0 0 0 Water Quality Management Plan (WQMP) 4-17 4.3.2 Infiltration BMPs Use Form 4.3-3 to compute on-site retention of runoff from proposed retention and infiltration BMPs. Volume retention estimates are sensitive to the percolation rate used, which determines the amount of runoff that can be infiltrated within the specified drawdown time. The infiltration safety factor reduces field measured percolation to account for potential inaccuracy associated with field measurements, declining BMP performance over time, and compaction during construction. Appendix D of the TGD for WQMP provides guidance on estimating an appropriate safety factor to use in Form 4.3-3. If site constraints limit the use of BMPs to a single type and implementation of retention and infiltration BMPs mitigate no more than 40% of the DCV, then they are considered infeasible and the Project Proponent may evaluate the effectiveness of BMPs lower in the LID hierarchy of use (Section 5.5.1 of the TGD for WQMP) If implementation of infiltrations BMPs is feasible as determined using Form 4.3-1, then LID infiltration BMPs shall be implemented to the MEP (section 4.1 of the TGD for WQMP). . Water Quality Management Plan (WQMP) 4-18 Form 4.3-3 Infiltration LID BMP - including underground BMPs (DA#1) 1 Remaining LID DCV not met by site design HSC BMP (ft3):2729.80 BMP Type Use columns to the right to compute runoff volume retention from proposed infiltration BMP (select BMP from Table 5-4 in TGD for WQMP) - Use additional forms for more BMPs DA #1 DMA #1 INFILTRATION BMP DA DMA BMP Type DA DMA BMP Type (Use additional forms for more BMPs) 2 Infiltration rate of underlying soils (in/hr) See Section 5.4.2 and Appendix D of the TGD for WQMP for minimum requirements for assessment methods 3 Infiltration safety factor See TGD Section 5.4.2 and Appendix D 4 Design percolation rate (in/hr) Pdesign = Item 2 / Item 3 5 Ponded water drawdown time (hr) Copy Item 6 in Form 4.2-1 6 Maximum ponding depth (ft) BMP specific, see Table 5-4 of the TGD for WQMP for BMP design details 7 Ponding Depth (ft) dBMP = Minimum of (1/12*Item 4*Item 5) or Item 6 8 Infiltrating surface area, SABMP (ft2) the lesser of the area needed for infiltration of full DCV or minimum space requirements from Table 5.7 of the TGD for WQMP 9 Amended soil depth, dmedia (ft) Only included in certain BMP types, see Table 5-4 in the TGD for WQMP for reference to BMP design details 10 Amended soil porosity 11 Gravel depth, dmedia (ft) Only included in certain BMP types, see Table 5-4 of the TGD for WQMP for BMP design details 12 Gravel porosity 13 Duration of storm as basin is filling (hrs) Typical ~ 3hrs 14 Above Ground Retention Volume (ft3) Vretention = Item 8 * [Item7 + (Item 9 * Item 10) + (Item 11 * Item 12) + (Item 13 * (Item 4 / 12))] 15 Underground Retention Volume (ft3) Volume determined using manufacturer’s specifications and calculations 16 Total Retention Volume from LID Infiltration BMPs: (Sum of Items 14 and 15 for all infiltration BMP included in plan) 17 Fraction of DCV achieved with infiltration BMP:% Retention% = Item 16 / Form 4.2-1 Item 7 18 Is full LID DCV retained onsite with combination of hydrologic source control and LID retention/infiltration BMPs? Yes No If yes, demonstrate conformance using Form 4.3-10; If no, then reduce Item 3, Factor of Safety to 2.0 and increase Item 8, Infiltrating Surface Area, such that the portion of the site area used for retention and infiltration BMPs equals or exceeds the minimum effective area thresholds (Table 5-7 of the TGD for WQMP) for the applicable category of development and repeat all above calculations. 48 48 48 2886.88 106 1.5 2.0 0.75 1.0 1.0 1490 1.5 0.15 1.5 0.35 3 2886.88 Water Quality Management Plan (WQMP) 4-18.1 Form 4.3-3 Infiltration LID BMP - including underground BMPs (DA#2) 1 Remaining LID DCV not met by site design HSC BMP (ft3):8562.07 BMP Type Use columns to the right to compute runoff volume retention from proposed infiltration BMP (select BMP from Table 5-4 in TGD for WQMP) - Use additional forms for more BMPs DA #1 DMA #A INFILTRATION BMP DA #2 DMA #2 INFILTRATION BMP DA DMA BMP Type (Use additional forms for more BMPs) 2 Infiltration rate of underlying soils (in/hr) See Section 5.4.2 and Appendix D of the TGD for WQMP for minimum requirements for assessment methods 3 Infiltration safety factor See TGD Section 5.4.2 and Appendix D 4 Design percolation rate (in/hr) Pdesign = Item 2 / Item 3 5 Ponded water drawdown time (hr) Copy Item 6 in Form 4.2-1 6 Maximum ponding depth (ft) BMP specific, see Table 5-4 of the TGD for WQMP for BMP design details 7 Ponding Depth (ft) dBMP = Minimum of (1/12*Item 4*Item 5) or Item 6 8 Infiltrating surface area, SABMP (ft2) the lesser of the area needed for infiltration of full DCV or minimum space requirements from Table 5.7 of the TGD for WQMP 9 Amended soil depth, dmedia (ft) Only included in certain BMP types, see Table 5-4 in the TGD for WQMP for reference to BMP design details 10 Amended soil porosity 11 Gravel depth, dmedia (ft) Only included in certain BMP types, see Table 5-4 of the TGD for WQMP for BMP design details 12 Gravel porosity 13 Duration of storm as basin is filling (hrs) Typical ~ 3hrs 14 Above Ground Retention Volume (ft3) Vretention = Item 8 * [Item7 + (Item 9 * Item 10) + (Item 11 * Item 12) + (Item 13 * (Item 4 / 12))] 15 Underground Retention Volume (ft3) Volume determined using manufacturer’s specifications and calculations 16 Total Retention Volume from LID Infiltration BMPs: (Sum of Items 14 and 15 for all infiltration BMP included in plan) 17 Fraction of DCV achieved with infiltration BMP:% Retention% = Item 16 / Form 4.2-1 Item 7 18 Is full LID DCV retained onsite with combination of hydrologic source control and LID retention/infiltration BMPs? 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ϰĞƐŝŐŶƉĞƌĐŽůĂƚŝŽŶƌĂƚĞ;ŝŶͬŚƌͿWĚĞƐŝŐŶс/ƚĞŵϮͬ/ƚĞŵϯ ϱWŽŶĚĞĚǁĂƚĞƌĚƌĂǁĚŽǁŶƚŝŵĞ;ŚƌͿŽƉǇ/ƚĞŵϲŝŶ&Žƌŵϰ͘ϮͲϭ ϲDĂǆŝŵƵŵƉŽŶĚŝŶŐĚĞƉƚŚ;ĨƚͿDWƐƉĞĐŝĨŝĐ͕ƐĞĞdĂďůĞϱͲϰŽĨƚŚĞd' ĨŽƌtYDWĨŽƌDWĚĞƐŝŐŶĚĞƚĂŝůƐ ϳWŽŶĚŝŶŐĞƉƚŚ;ĨƚͿĚDWсDŝŶŝŵƵŵŽĨ;ϭͬϭϮΎ/ƚĞŵϰΎ/ƚĞŵϱͿŽƌ/ƚĞŵϲ ϴ/ŶĨŝůƚƌĂƚŝŶŐƐƵƌĨĂĐĞĂƌĞĂ͕^DW;ĨƚϮͿƚŚĞůĞƐƐĞƌŽĨƚŚĞĂƌĞĂŶĞĞĚĞĚĨŽƌ ŝŶĨŝůƚƌĂƚŝŽŶŽĨĨƵůůsŽƌŵŝŶŝŵƵŵƐƉĂĐĞƌĞƋƵŝƌĞŵĞŶƚƐĨƌŽŵdĂďůĞϱ͘ϳŽĨ ƚŚĞd'ĨŽƌtYDW ϵŵĞŶĚĞĚƐŽŝůĚĞƉƚŚ͕ĚŵĞĚŝĂ;ĨƚͿKŶůǇŝŶĐůƵĚĞĚŝŶĐĞƌƚĂŝŶDWƚǇƉĞƐ͕ ƐĞĞdĂďůĞϱͲϰŝŶƚŚĞd'ĨŽƌtYDWĨŽƌƌĞĨĞƌĞŶĐĞƚŽDWĚĞƐŝŐŶĚĞƚĂŝůƐ ϭϬŵĞŶĚĞĚƐŽŝůƉŽƌŽƐŝƚǇ ϭϭ'ƌĂǀĞůĚĞƉƚŚ͕ĚŵĞĚŝĂ;ĨƚͿKŶůǇŝŶĐůƵĚĞĚŝŶĐĞƌƚĂŝŶDWƚǇƉĞƐ͕ƐĞĞ dĂďůĞϱͲϰŽĨƚŚĞd'ĨŽƌtYDWĨŽƌDWĚĞƐŝŐŶĚĞƚĂŝůƐ ϭϮ'ƌĂǀĞůƉŽƌŽƐŝƚǇ ϭϯƵƌĂƚŝŽŶŽĨƐƚŽƌŵĂƐďĂƐŝŶŝƐĨŝůůŝŶŐ;ŚƌƐͿdǇƉŝĐĂůΕϯŚƌƐ ϭϰďŽǀĞ'ƌŽƵŶĚZĞƚĞŶƚŝŽŶsŽůƵŵĞ;ĨƚϯͿsƌĞƚĞŶƚŝŽŶс/ƚĞŵϴΎ΀/ƚĞŵϳн ;/ƚĞŵϵΎ/ƚĞŵϭϬͿн;/ƚĞŵϭϭΎ/ƚĞŵϭϮͿн;/ƚĞŵϭϯΎ;/ƚĞŵϰͬϭϮͿͿ΁ ϭϱhŶĚĞƌŐƌŽƵŶĚZĞƚĞŶƚŝŽŶsŽůƵŵĞ;ĨƚϯͿsŽůƵŵĞĚĞƚĞƌŵŝŶĞĚƵƐŝŶŐ ŵĂŶƵĨĂĐƚƵƌĞƌ͛ƐƐƉĞĐŝĨŝĐĂƚŝŽŶƐĂŶĚĐĂůĐƵůĂƚŝŽŶƐ ϭϲdŽƚĂůZĞƚĞŶƚŝŽŶsŽůƵŵĞĨƌŽŵ>//ŶĨŝůƚƌĂƚŝŽŶDWƐ͗;^ƵŵŽĨ/ƚĞŵƐϭϰĂŶĚϭϱĨŽƌĂůůŝŶĨŝůƚƌĂƚŝŽŶDWŝŶĐůƵĚĞĚŝŶƉůĂŶͿ ϭϳ &ƌĂĐƚŝŽŶŽĨsĂĐŚŝĞǀĞĚǁŝƚŚŝŶĨŝůƚƌĂƚŝŽŶDW͗йZĞƚĞŶƚŝŽŶйс/ƚĞŵϭϲͬ&Žƌŵϰ͘ϮͲϭ/ƚĞŵϳ ϭϴ/ƐĨƵůů>/sƌĞƚĂŝŶĞĚŽŶƐŝƚĞǁŝƚŚĐŽŵďŝŶĂƚŝŽŶŽĨŚǇĚƌŽůŽŐŝĐƐŽƵƌĐĞĐŽŶƚƌŽůĂŶĚ>/ƌĞƚĞŶƚŝŽŶͬŝŶĨŝůƚƌĂƚŝŽŶDWƐ͍zĞƐ EŽ /ĨǇĞƐ͕ĚĞŵŽŶƐƚƌĂƚĞĐŽŶĨŽƌŵĂŶĐĞƵƐŝŶŐ&Žƌŵϰ͘ϯͲϭϬ͖/ĨŶŽ͕ƚŚĞŶƌĞĚƵĐĞ/ƚĞŵϯ͕&ĂĐƚŽƌŽĨ^ĂĨĞƚǇƚŽϮ͘ϬĂŶĚŝŶĐƌĞĂƐĞ/ƚĞŵϴ͕/ŶĨŝůƚƌĂƚŝŶŐ^ƵƌĨĂĐĞƌĞĂ͕ƐƵĐŚƚŚĂƚ ƚŚĞƉŽƌƚŝŽŶŽĨƚŚĞƐŝƚĞĂƌĞĂƵƐĞĚĨŽƌƌĞƚĞŶƚŝŽŶĂŶĚŝŶĨŝůƚƌĂƚŝŽŶDWƐĞƋƵĂůƐŽƌĞǆĐĞĞĚƐƚŚĞŵŝŶŝŵƵŵĞĨĨĞĐƚŝǀĞĂƌĞĂƚŚƌĞƐŚŽůĚƐ;dĂďůĞϱͲϳŽĨƚŚĞd'ĨŽƌtYDWͿ ĨŽƌƚŚĞĂƉƉůŝĐĂďůĞĐĂƚĞŐŽƌǇŽĨĚĞǀĞůŽƉŵĞŶƚĂŶĚƌĞƉĞĂƚĂůůĂďŽǀĞĐĂůĐƵůĂƚŝŽŶƐ͘ ϰϴ ϰϴϰϴ 5363.66 101 1.5 2.0 0.75 ϭ͘25 ϭ.25 2085 1.5 Ϭ͘ϭϱ 2.60 Ϭ͘ϯϱ ϯ 5363.66 5296.56 tĂƚĞƌYƵĂůŝƚǇDĂŶĂŐĞŵĞŶƚWůĂŶ;tYDWͿ ϰͲϭϴ͘ϭ &Žƌŵϰ͘ϯͲϯ/ŶĨŝůƚƌĂƚŝŽŶ>/DWͲŝŶĐůƵĚŝŶŐƵŶĚĞƌŐƌŽƵŶĚDWƐ;η4Ϳ ϭZĞŵĂŝŶŝŶŐ>/sŶŽƚŵĞƚďǇƐŝƚĞĚĞƐŝŐŶ,^DW;ĨƚϯͿ͗ DWdǇƉĞhƐĞĐŽůƵŵŶƐƚŽƚŚĞƌŝŐŚƚƚŽĐŽŵƉƵƚĞƌƵŶŽĨĨǀŽůƵŵĞƌĞƚĞŶƚŝŽŶ ĨƌŽŵƉƌŽƉŽƐĞĚŝŶĨŝůƚƌĂƚŝŽŶDW;ƐĞůĞĐƚDWĨƌŽŵdĂďůĞϱͲϰŝŶd'ĨŽƌ tYDWͿͲhƐĞĂĚĚŝƚŝŽŶĂůĨŽƌŵƐĨŽƌŵŽƌĞDWƐ η4 Dη4 /E&/>dZd/KEDW η5 Dη5 DWdǇƉĞ #6 D#6 DWdǇƉĞ Ϯ/ŶĨŝůƚƌĂƚŝŽŶƌĂƚĞŽĨƵŶĚĞƌůǇŝŶŐƐŽŝůƐ;ŝŶͬŚƌͿ^ĞĞ^ĞĐƚŝŽŶϱ͘ϰ͘ϮĂŶĚ ƉƉĞŶĚŝǆŽĨƚŚĞd'ĨŽƌtYDWĨŽƌŵŝŶŝŵƵŵƌĞƋƵŝƌĞŵĞŶƚƐĨŽƌ ĂƐƐĞƐƐŵĞŶƚŵĞƚŚŽĚƐ ϯ/ŶĨŝůƚƌĂƚŝŽŶƐĂĨĞƚǇĨĂĐƚŽƌ^ĞĞd'^ĞĐƚŝŽŶϱ͘ϰ͘ϮĂŶĚƉƉĞŶĚŝǆ ϰĞƐŝŐŶƉĞƌĐŽůĂƚŝŽŶƌĂƚĞ;ŝŶͬŚƌͿWĚĞƐŝŐŶс/ƚĞŵϮͬ/ƚĞŵϯ ϱWŽŶĚĞĚǁĂƚĞƌĚƌĂǁĚŽǁŶƚŝŵĞ;ŚƌͿŽƉǇ/ƚĞŵϲŝŶ&Žƌŵϰ͘ϮͲϭ ϲDĂǆŝŵƵŵƉŽŶĚŝŶŐĚĞƉƚŚ;ĨƚͿDWƐƉĞĐŝĨŝĐ͕ƐĞĞdĂďůĞϱͲϰŽĨƚŚĞd' ĨŽƌtYDWĨŽƌDWĚĞƐŝŐŶĚĞƚĂŝůƐ ϳWŽŶĚŝŶŐĞƉƚŚ;ĨƚͿĚDWсDŝŶŝŵƵŵŽĨ;ϭͬϭϮΎ/ƚĞŵϰΎ/ƚĞŵϱͿŽƌ/ƚĞŵϲ ϴ/ŶĨŝůƚƌĂƚŝŶŐƐƵƌĨĂĐĞĂƌĞĂ͕^DW;ĨƚϮͿƚŚĞůĞƐƐĞƌŽĨƚŚĞĂƌĞĂŶĞĞĚĞĚĨŽƌ ŝŶĨŝůƚƌĂƚŝŽŶŽĨĨƵůůsŽƌŵŝŶŝŵƵŵƐƉĂĐĞƌĞƋƵŝƌĞŵĞŶƚƐĨƌŽŵdĂďůĞϱ͘ϳŽĨ ƚŚĞd'ĨŽƌtYDW ϵŵĞŶĚĞĚƐŽŝůĚĞƉƚŚ͕ĚŵĞĚŝĂ;ĨƚͿKŶůǇŝŶĐůƵĚĞĚŝŶĐĞƌƚĂŝŶDWƚǇƉĞƐ͕ ƐĞĞdĂďůĞϱͲϰŝŶƚŚĞd'ĨŽƌtYDWĨŽƌƌĞĨĞƌĞŶĐĞƚŽDWĚĞƐŝŐŶĚĞƚĂŝůƐ ϭϬŵĞŶĚĞĚƐŽŝůƉŽƌŽƐŝƚǇ ϭϭ'ƌĂǀĞůĚĞƉƚŚ͕ĚŵĞĚŝĂ;ĨƚͿKŶůǇŝŶĐůƵĚĞĚŝŶĐĞƌƚĂŝŶDWƚǇƉĞƐ͕ƐĞĞ dĂďůĞϱͲϰŽĨƚŚĞd'ĨŽƌtYDWĨŽƌDWĚĞƐŝŐŶĚĞƚĂŝůƐ ϭϮ'ƌĂǀĞůƉŽƌŽƐŝƚǇ ϭϯƵƌĂƚŝŽŶŽĨƐƚŽƌŵĂƐďĂƐŝŶŝƐĨŝůůŝŶŐ;ŚƌƐͿdǇƉŝĐĂůΕϯŚƌƐ ϭϰďŽǀĞ'ƌŽƵŶĚZĞƚĞŶƚŝŽŶsŽůƵŵĞ;ĨƚϯͿsƌĞƚĞŶƚŝŽŶс/ƚĞŵϴΎ΀/ƚĞŵϳн ;/ƚĞŵϵΎ/ƚĞŵϭϬͿн;/ƚĞŵϭϭΎ/ƚĞŵϭϮͿн;/ƚĞŵϭϯΎ;/ƚĞŵϰͬϭϮͿͿ΁ ϭϱhŶĚĞƌŐƌŽƵŶĚZĞƚĞŶƚŝŽŶsŽůƵŵĞ;ĨƚϯͿsŽůƵŵĞĚĞƚĞƌŵŝŶĞĚƵƐŝŶŐ ŵĂŶƵĨĂĐƚƵƌĞƌ͛ƐƐƉĞĐŝĨŝĐĂƚŝŽŶƐĂŶĚĐĂůĐƵůĂƚŝŽŶƐ ϭϲdŽƚĂůZĞƚĞŶƚŝŽŶsŽůƵŵĞĨƌŽŵ>//ŶĨŝůƚƌĂƚŝŽŶDWƐ͗;^ƵŵŽĨ/ƚĞŵƐϭϰĂŶĚϭϱĨŽƌĂůůŝŶĨŝůƚƌĂƚŝŽŶDWŝŶĐůƵĚĞĚŝŶƉůĂŶͿ ϭϳ &ƌĂĐƚŝŽŶŽĨsĂĐŚŝĞǀĞĚǁŝƚŚŝŶĨŝůƚƌĂƚŝŽŶDW͗йZĞƚĞŶƚŝŽŶйс/ƚĞŵϭϲͬ&Žƌŵϰ͘ϮͲϭ/ƚĞŵϳ ϭϴ/ƐĨƵůů>/sƌĞƚĂŝŶĞĚŽŶƐŝƚĞǁŝƚŚĐŽŵďŝŶĂƚŝŽŶŽĨŚǇĚƌŽůŽŐŝĐƐŽƵƌĐĞĐŽŶƚƌŽůĂŶĚ>/ƌĞƚĞŶƚŝŽŶͬŝŶĨŝůƚƌĂƚŝŽŶDWƐ͍zĞƐ EŽ /ĨǇĞƐ͕ĚĞŵŽŶƐƚƌĂƚĞĐŽŶĨŽƌŵĂŶĐĞƵƐŝŶŐ&Žƌŵϰ͘ϯͲϭϬ͖/ĨŶŽ͕ƚŚĞŶƌĞĚƵĐĞ/ƚĞŵϯ͕&ĂĐƚŽƌŽĨ^ĂĨĞƚǇƚŽϮ͘ϬĂŶĚŝŶĐƌĞĂƐĞ/ƚĞŵϴ͕/ŶĨŝůƚƌĂƚŝŶŐ^ƵƌĨĂĐĞƌĞĂ͕ƐƵĐŚƚŚĂƚ ƚŚĞƉŽƌƚŝŽŶŽĨƚŚĞƐŝƚĞĂƌĞĂƵƐĞĚĨŽƌƌĞƚĞŶƚŝŽŶĂŶĚŝŶĨŝůƚƌĂƚŝŽŶDWƐĞƋƵĂůƐŽƌĞǆĐĞĞĚƐƚŚĞŵŝŶŝŵƵŵĞĨĨĞĐƚŝǀĞĂƌĞĂƚŚƌĞƐŚŽůĚƐ;dĂďůĞϱͲϳŽĨƚŚĞd'ĨŽƌtYDWͿ ĨŽƌƚŚĞĂƉƉůŝĐĂďůĞĐĂƚĞŐŽƌǇŽĨĚĞǀĞůŽƉŵĞŶƚĂŶĚƌĞƉĞĂƚĂůůĂďŽǀĞĐĂůĐƵůĂƚŝŽŶƐ͘ ϰϴ ϰϴ 13160.53 101 1.5 2.0 0.75 ϭ͘25 ϭ͘25 4790 1.5 Ϭ͘ϭϱ 3.1 Ϭ͘ϯϱ ϯ 13160.53 13060.82 ϰϴ tĂƚĞƌYƵĂůŝƚǇDĂŶĂŐĞŵĞŶƚWůĂŶ;tYDWͿ ϰͲϭϴ͘ϭ &Žƌŵϰ͘ϯͲϯ/ŶĨŝůƚƌĂƚŝŽŶ>/DWͲŝŶĐůƵĚŝŶŐƵŶĚĞƌŐƌŽƵŶĚDWƐ;η5Ϳ ϭZĞŵĂŝŶŝŶŐ>/sŶŽƚŵĞƚďǇƐŝƚĞĚĞƐŝŐŶ,^DW;ĨƚϯͿ͗ DWdǇƉĞhƐĞĐŽůƵŵŶƐƚŽƚŚĞƌŝŐŚƚƚŽĐŽŵƉƵƚĞƌƵŶŽĨĨǀŽůƵŵĞƌĞƚĞŶƚŝŽŶ ĨƌŽŵƉƌŽƉŽƐĞĚŝŶĨŝůƚƌĂƚŝŽŶDW;ƐĞůĞĐƚDWĨƌŽŵdĂďůĞϱͲϰŝŶd'ĨŽƌ tYDWͿͲhƐĞĂĚĚŝƚŝŽŶĂůĨŽƌŵƐĨŽƌŵŽƌĞDWƐ η4 Dη4 /E&/>dZd/KEDW η5 Dη5 INFILTRATION BMP Ϯ/ŶĨŝůƚƌĂƚŝŽŶƌĂƚĞŽĨƵŶĚĞƌůǇŝŶŐƐŽŝůƐ;ŝŶͬŚƌͿ^ĞĞ^ĞĐƚŝŽŶϱ͘ϰ͘ϮĂŶĚ ƉƉĞŶĚŝǆŽĨƚŚĞd'ĨŽƌtYDWĨŽƌŵŝŶŝŵƵŵƌĞƋƵŝƌĞŵĞŶƚƐĨŽƌ ĂƐƐĞƐƐŵĞŶƚŵĞƚŚŽĚƐ ϯ/ŶĨŝůƚƌĂƚŝŽŶƐĂĨĞƚǇĨĂĐƚŽƌ^ĞĞd'^ĞĐƚŝŽŶϱ͘ϰ͘ϮĂŶĚƉƉĞŶĚŝǆ ϰĞƐŝŐŶƉĞƌĐŽůĂƚŝŽŶƌĂƚĞ;ŝŶͬŚƌͿWĚĞƐŝŐŶс/ƚĞŵϮͬ/ƚĞŵϯ ϱWŽŶĚĞĚǁĂƚĞƌĚƌĂǁĚŽǁŶƚŝŵĞ;ŚƌͿŽƉǇ/ƚĞŵϲŝŶ&Žƌŵϰ͘ϮͲϭ ϲDĂǆŝŵƵŵƉŽŶĚŝŶŐĚĞƉƚŚ;ĨƚͿDWƐƉĞĐŝĨŝĐ͕ƐĞĞdĂďůĞϱͲϰŽĨƚŚĞd' ĨŽƌtYDWĨŽƌDWĚĞƐŝŐŶĚĞƚĂŝůƐ ϳWŽŶĚŝŶŐĞƉƚŚ;ĨƚͿĚDWсDŝŶŝŵƵŵŽĨ;ϭͬϭϮΎ/ƚĞŵϰΎ/ƚĞŵϱͿŽƌ/ƚĞŵϲ ϴ/ŶĨŝůƚƌĂƚŝŶŐƐƵƌĨĂĐĞĂƌĞĂ͕^DW;ĨƚϮͿƚŚĞůĞƐƐĞƌŽĨƚŚĞĂƌĞĂŶĞĞĚĞĚĨŽƌ ŝŶĨŝůƚƌĂƚŝŽŶŽĨĨƵůůsŽƌŵŝŶŝŵƵŵƐƉĂĐĞƌĞƋƵŝƌĞŵĞŶƚƐĨƌŽŵdĂďůĞϱ͘ϳŽĨ ƚŚĞd'ĨŽƌtYDW ϵŵĞŶĚĞĚƐŽŝůĚĞƉƚŚ͕ĚŵĞĚŝĂ;ĨƚͿKŶůǇŝŶĐůƵĚĞĚŝŶĐĞƌƚĂŝŶDWƚǇƉĞƐ͕ ƐĞĞdĂďůĞϱͲϰŝŶƚŚĞd'ĨŽƌtYDWĨŽƌƌĞĨĞƌĞŶĐĞƚŽDWĚĞƐŝŐŶĚĞƚĂŝůƐ ϭϬŵĞŶĚĞĚƐŽŝůƉŽƌŽƐŝƚǇ ϭϭ'ƌĂǀĞůĚĞƉƚŚ͕ĚŵĞĚŝĂ;ĨƚͿKŶůǇŝŶĐůƵĚĞĚŝŶĐĞƌƚĂŝŶDWƚǇƉĞƐ͕ƐĞĞ dĂďůĞϱͲϰŽĨƚŚĞd'ĨŽƌtYDWĨŽƌDWĚĞƐŝŐŶĚĞƚĂŝůƐ ϭϮ'ƌĂǀĞůƉŽƌŽƐŝƚǇ ϭϯƵƌĂƚŝŽŶŽĨƐƚŽƌŵĂƐďĂƐŝŶŝƐĨŝůůŝŶŐ;ŚƌƐͿdǇƉŝĐĂůΕϯŚƌƐ ϭϰďŽǀĞ'ƌŽƵŶĚZĞƚĞŶƚŝŽŶsŽůƵŵĞ;ĨƚϯͿsƌĞƚĞŶƚŝŽŶс/ƚĞŵϴΎ΀/ƚĞŵϳн ;/ƚĞŵϵΎ/ƚĞŵϭϬͿн;/ƚĞŵϭϭΎ/ƚĞŵϭϮͿн;/ƚĞŵϭϯΎ;/ƚĞŵϰͬϭϮͿͿ΁ ϭϱhŶĚĞƌŐƌŽƵŶĚZĞƚĞŶƚŝŽŶsŽůƵŵĞ;ĨƚϯͿsŽůƵŵĞĚĞƚĞƌŵŝŶĞĚƵƐŝŶŐ ŵĂŶƵĨĂĐƚƵƌĞƌ͛ƐƐƉĞĐŝĨŝĐĂƚŝŽŶƐĂŶĚĐĂůĐƵůĂƚŝŽŶƐ ϭϲdŽƚĂůZĞƚĞŶƚŝŽŶsŽůƵŵĞĨƌŽŵ>//ŶĨŝůƚƌĂƚŝŽŶDWƐ͗;^ƵŵŽĨ/ƚĞŵƐϭϰĂŶĚϭϱĨŽƌĂůůŝŶĨŝůƚƌĂƚŝŽŶDWŝŶĐůƵĚĞĚŝŶƉůĂŶͿ ϭϳ &ƌĂĐƚŝŽŶŽĨsĂĐŚŝĞǀĞĚǁŝƚŚŝŶĨŝůƚƌĂƚŝŽŶDW͗ йZĞƚĞŶƚŝŽŶйс/ƚĞŵϭϲͬ&Žƌŵϰ͘ϮͲϭ/ƚĞŵϳ ϭϴ/ƐĨƵůů>/sƌĞƚĂŝŶĞĚŽŶƐŝƚĞǁŝƚŚĐŽŵďŝŶĂƚŝŽŶŽĨŚǇĚƌŽůŽŐŝĐƐŽƵƌĐĞĐŽŶƚƌŽůĂŶĚ>/ƌĞƚĞŶƚŝŽŶͬŝŶĨŝůƚƌĂƚŝŽŶDWƐ͍zĞƐ EŽ /ĨǇĞƐ͕ĚĞŵŽŶƐƚƌĂƚĞĐŽŶĨŽƌŵĂŶĐĞƵƐŝŶŐ&Žƌŵϰ͘ϯͲϭϬ͖/ĨŶŽ͕ƚŚĞŶƌĞĚƵĐĞ/ƚĞŵϯ͕&ĂĐƚŽƌŽĨ^ĂĨĞƚǇƚŽϮ͘ϬĂŶĚŝŶĐƌĞĂƐĞ/ƚĞŵϴ͕/ŶĨŝůƚƌĂƚŝŶŐ^ƵƌĨĂĐĞƌĞĂ͕ƐƵĐŚƚŚĂƚ ƚŚĞƉŽƌƚŝŽŶŽĨƚŚĞƐŝƚĞĂƌĞĂƵƐĞĚĨŽƌƌĞƚĞŶƚŝŽŶĂŶĚŝŶĨŝůƚƌĂƚŝŽŶDWƐĞƋƵĂůƐŽƌĞǆĐĞĞĚƐƚŚĞŵŝŶŝŵƵŵĞĨĨĞĐƚŝǀĞĂƌĞĂƚŚƌĞƐŚŽůĚƐ;dĂďůĞϱͲϳŽĨƚŚĞd'ĨŽƌtYDWͿ ĨŽƌƚŚĞĂƉƉůŝĐĂďůĞĐĂƚĞŐŽƌǇŽĨĚĞǀĞůŽƉŵĞŶƚĂŶĚƌĞƉĞĂƚĂůůĂďŽǀĞĐĂůĐƵůĂƚŝŽŶƐ͘ ϰϴ 1656.80 881.29 ϰϴ 1.5 2.0 0.75 1.0 1.0 940 ϭ͘5 Ϭ͘ϭϱ 1.0 Ϭ͘ϯϱ ϯ 1656.80 ϰϴ η6 Dη6 DWdǇƉĞ 189 tĂƚĞƌYƵĂůŝƚǇDĂŶĂŐĞŵĞŶƚWůĂŶ;tYDWͿ ϰͲϭϴ͘ϭ &Žƌŵϰ͘ϯͲϯ/ŶĨŝůƚƌĂƚŝŽŶ>/DWͲŝŶĐůƵĚŝŶŐƵŶĚĞƌŐƌŽƵŶĚDWƐ;η6Ϳ ϭZĞŵĂŝŶŝŶŐ>/sŶŽƚŵĞƚďǇƐŝƚĞĚĞƐŝŐŶ,^DW;ĨƚϯͿ͗ DWdǇƉĞhƐĞĐŽůƵŵŶƐƚŽƚŚĞƌŝŐŚƚƚŽĐŽŵƉƵƚĞƌƵŶŽĨĨǀŽůƵŵĞƌĞƚĞŶƚŝŽŶ ĨƌŽŵƉƌŽƉŽƐĞĚŝŶĨŝůƚƌĂƚŝŽŶDW;ƐĞůĞĐƚDWĨƌŽŵdĂďůĞϱͲϰŝŶd'ĨŽƌ tYDWͿͲhƐĞĂĚĚŝƚŝŽŶĂůĨŽƌŵƐĨŽƌŵŽƌĞDWƐ η5 Dη5 /E&/>dZd/KEDW η6 Dη6 INFILTRATION BMP Ϯ/ŶĨŝůƚƌĂƚŝŽŶƌĂƚĞŽĨƵŶĚĞƌůǇŝŶŐƐŽŝůƐ;ŝŶͬŚƌͿ^ĞĞ^ĞĐƚŝŽŶϱ͘ϰ͘ϮĂŶĚ ƉƉĞŶĚŝǆŽĨƚŚĞd'ĨŽƌtYDWĨŽƌŵŝŶŝŵƵŵƌĞƋƵŝƌĞŵĞŶƚƐĨŽƌ ĂƐƐĞƐƐŵĞŶƚŵĞƚŚŽĚƐ ϯ/ŶĨŝůƚƌĂƚŝŽŶƐĂĨĞƚǇĨĂĐƚŽƌ^ĞĞd'^ĞĐƚŝŽŶϱ͘ϰ͘ϮĂŶĚƉƉĞŶĚŝǆ ϰĞƐŝŐŶƉĞƌĐŽůĂƚŝŽŶƌĂƚĞ;ŝŶͬŚƌͿWĚĞƐŝŐŶс/ƚĞŵϮͬ/ƚĞŵϯ ϱWŽŶĚĞĚǁĂƚĞƌĚƌĂǁĚŽǁŶƚŝŵĞ;ŚƌͿŽƉǇ/ƚĞŵϲŝŶ&Žƌŵϰ͘ϮͲϭ ϲDĂǆŝŵƵŵƉŽŶĚŝŶŐĚĞƉƚŚ;ĨƚͿDWƐƉĞĐŝĨŝĐ͕ƐĞĞdĂďůĞϱͲϰŽĨƚŚĞd' ĨŽƌtYDWĨŽƌDWĚĞƐŝŐŶĚĞƚĂŝůƐ ϳWŽŶĚŝŶŐĞƉƚŚ;ĨƚͿĚDWсDŝŶŝŵƵŵŽĨ;ϭͬϭϮΎ/ƚĞŵϰΎ/ƚĞŵϱͿŽƌ/ƚĞŵϲ ϴ/ŶĨŝůƚƌĂƚŝŶŐƐƵƌĨĂĐĞĂƌĞĂ͕^DW;ĨƚϮͿƚŚĞůĞƐƐĞƌŽĨƚŚĞĂƌĞĂŶĞĞĚĞĚĨŽƌ ŝŶĨŝůƚƌĂƚŝŽŶŽĨĨƵůůsŽƌŵŝŶŝŵƵŵƐƉĂĐĞƌĞƋƵŝƌĞŵĞŶƚƐĨƌŽŵdĂďůĞϱ͘ϳŽĨ ƚŚĞd'ĨŽƌtYDW ϵŵĞŶĚĞĚƐŽŝůĚĞƉƚŚ͕ĚŵĞĚŝĂ;ĨƚͿKŶůǇŝŶĐůƵĚĞĚŝŶĐĞƌƚĂŝŶDWƚǇƉĞƐ͕ ƐĞĞdĂďůĞϱͲϰŝŶƚŚĞd'ĨŽƌtYDWĨŽƌƌĞĨĞƌĞŶĐĞƚŽDWĚĞƐŝŐŶĚĞƚĂŝůƐ ϭϬŵĞŶĚĞĚƐŽŝůƉŽƌŽƐŝƚǇ ϭϭ'ƌĂǀĞůĚĞƉƚŚ͕ĚŵĞĚŝĂ;ĨƚͿKŶůǇŝŶĐůƵĚĞĚŝŶĐĞƌƚĂŝŶDWƚǇƉĞƐ͕ƐĞĞ dĂďůĞϱͲϰŽĨƚŚĞd'ĨŽƌtYDWĨŽƌDWĚĞƐŝŐŶĚĞƚĂŝůƐ ϭϮ'ƌĂǀĞůƉŽƌŽƐŝƚǇ ϭϯƵƌĂƚŝŽŶŽĨƐƚŽƌŵĂƐďĂƐŝŶŝƐĨŝůůŝŶŐ;ŚƌƐͿdǇƉŝĐĂůΕϯŚƌƐ ϭϰďŽǀĞ'ƌŽƵŶĚZĞƚĞŶƚŝŽŶsŽůƵŵĞ;ĨƚϯͿsƌĞƚĞŶƚŝŽŶс/ƚĞŵϴΎ΀/ƚĞŵϳн ;/ƚĞŵϵΎ/ƚĞŵϭϬͿн;/ƚĞŵϭϭΎ/ƚĞŵϭϮͿн;/ƚĞŵϭϯΎ;/ƚĞŵϰͬϭϮͿͿ΁ ϭϱhŶĚĞƌŐƌŽƵŶĚZĞƚĞŶƚŝŽŶsŽůƵŵĞ;ĨƚϯͿsŽůƵŵĞĚĞƚĞƌŵŝŶĞĚƵƐŝŶŐ ŵĂŶƵĨĂĐƚƵƌĞƌ͛ƐƐƉĞĐŝĨŝĐĂƚŝŽŶƐĂŶĚĐĂůĐƵůĂƚŝŽŶƐ ϭϲdŽƚĂůZĞƚĞŶƚŝŽŶsŽůƵŵĞĨƌŽŵ>//ŶĨŝůƚƌĂƚŝŽŶDWƐ͗;^ƵŵŽĨ/ƚĞŵƐϭϰĂŶĚϭϱĨŽƌĂůůŝŶĨŝůƚƌĂƚŝŽŶDWŝŶĐůƵĚĞĚŝŶƉůĂŶͿ ϭϳ &ƌĂĐƚŝŽŶŽĨsĂĐŚŝĞǀĞĚǁŝƚŚŝŶĨŝůƚƌĂƚŝŽŶDW͗йZĞƚĞŶƚŝŽŶйс/ƚĞŵϭϲͬ&Žƌŵϰ͘ϮͲϭ/ƚĞŵϳ ϭϴ/ƐĨƵůů>/sƌĞƚĂŝŶĞĚŽŶƐŝƚĞǁŝƚŚĐŽŵďŝŶĂƚŝŽŶŽĨŚǇĚƌŽůŽŐŝĐƐŽƵƌĐĞĐŽŶƚƌŽůĂŶĚ>/ƌĞƚĞŶƚŝŽŶͬŝŶĨŝůƚƌĂƚŝŽŶDWƐ͍zĞƐ EŽ /ĨǇĞƐ͕ĚĞŵŽŶƐƚƌĂƚĞĐŽŶĨŽƌŵĂŶĐĞƵƐŝŶŐ&Žƌŵϰ͘ϯͲϭϬ͖/ĨŶŽ͕ƚŚĞŶƌĞĚƵĐĞ/ƚĞŵϯ͕&ĂĐƚŽƌŽĨ^ĂĨĞƚǇƚŽϮ͘ϬĂŶĚŝŶĐƌĞĂƐĞ/ƚĞŵϴ͕/ŶĨŝůƚƌĂƚŝŶŐ^ƵƌĨĂĐĞƌĞĂ͕ƐƵĐŚƚŚĂƚ ƚŚĞƉŽƌƚŝŽŶŽĨƚŚĞƐŝƚĞĂƌĞĂƵƐĞĚĨŽƌƌĞƚĞŶƚŝŽŶĂŶĚŝŶĨŝůƚƌĂƚŝŽŶDWƐĞƋƵĂůƐŽƌĞǆĐĞĞĚƐƚŚĞŵŝŶŝŵƵŵĞĨĨĞĐƚŝǀĞĂƌĞĂƚŚƌĞƐŚŽůĚƐ;dĂďůĞϱͲϳŽĨƚŚĞd'ĨŽƌtYDWͿ ĨŽƌƚŚĞĂƉƉůŝĐĂďůĞĐĂƚĞŐŽƌǇŽĨĚĞǀĞůŽƉŵĞŶƚĂŶĚƌĞƉĞĂƚĂůůĂďŽǀĞĐĂůĐƵůĂƚŝŽŶƐ͘ ϰϴ ϰϴϰϴ 7674.75 101 1.5 2.0 0.75 ϭ͘0 ϭ͘0 ϭ͘ϱ Ϭ͘ϭϱ 1.75 Ϭ͘ϯϱ ϯ 7674.75 7589.94 η4Dη4 /E&/>dZd/KEDW 3790 Water Quality Management Plan (WQMP) 4-19 4.3.3 Harvest and Use BMP Harvest and use BMP may be considered if the full LID DCV cannot be met by maximizing infiltration BMPs. Use Form 4.3-4 to compute on-site retention of runoff from proposed harvest and use BMPs. Volume retention estimates for harvest and use BMPs are sensitive to the on-site demand for captured stormwater. Since irrigation water demand is low in the wet season, when most rainfall events occur in San Bernardino County, the volume of water that can be used within a specified drawdown period is relatively low. The bottom portion of Form 4.3-4 facilitates the necessary computations to show infeasibility if a minimum incremental benefit of 40 percent of the LID DCV would not be achievable with MEP implementation of on-site harvest and use of stormwater (Section 5.5.4 of the TGD for WQMP). Form 4.3-4 Harvest and Use BMPs (DA 1 to DA 6) 1 Remaining LID DCV not met by site design HSC or infiltration BMP (ft3): Vunmet = Form 4.2-1 Item 7 - Form 4.3-2 Item 30 – Form 4.3-3 Item 16 BMP Type(s) Compute runoff volume retention from proposed harvest and use BMP (Select BMPs from Table 5-4 of the TGD for WQMP) - Use additional forms for more BMPs DA DMA BMP Type DA DMA BMP Type DA DMA BMP Type (Use additional forms for more BMPs) 2 Describe cistern or runoff detention facility 3 Storage volume for proposed detention type (ft3) Volume of cistern 4 Landscaped area planned for use of harvested stormwater (ft2) 5 Average wet season daily irrigation demand (in/day) Use local values, typical ~ 0.1 in/day 6 Daily water demand (ft3/day) Item 4 * (Item 5 / 12) 7 Drawdown time (hrs) Copy Item 6 from Form 4.2-1 8Retention Volume (ft3) Vretention = Minimum of (Item 3) or (Item 6 * (Item 7 / 24)) 9 Total Retention Volume (ft3) from Harvest and Use BMP Sum of Item 8 for all harvest and use BMP included in plan 10 Is the full DCV retained with a combination of LID HSC, retention and infiltration, and harvest & use BMPs? Yes No If yes, demonstrate conformance using Form 4.3-10. If no, then re-evaluate combinations of all LID BMP and optimize their implementation such that the maximum portion of the DCV is retained on-site (using a single BMP type or combination of BMP types). If the full DCV cannot be mitigated after this optimization process, proceed to Section 4.3.4. 0.1 0.1 0.1 0.00 0.00 0.00 48 48 48 0.00 0.00 0.00 0.00 Water Quality Management Plan (WQMP) 4-20 4.3.4 Biotreatment BMP Biotreatment BMPs may be considered if the full LID DCV cannot be met by maximizing retention and infiltration, and harvest and use BMPs. A key consideration when using biotreatment BMP is the effectiveness of the proposed BMP in addressing the pollutants of concern for the project (see Table 5-5 of the TGD for WQMP). Use Form 4.3-5 to summarize the potential for volume based and/or flow based biotreatment options to biotreat the remaining unmet LID DCV w. Biotreatment computations are included as follows: •Use Form 4.3-6 to compute biotreatment in small volume based biotreatment BMP (e.g. bioretention w/underdrains); •Use Form 4.3-7 to compute biotreatment in large volume based biotreatment BMP (e.g. constructed wetlands); •Use Form 4.3-8 to compute sizing criteria for flow-based biotreatment BMP (e.g. bioswales) Form 4.3-5 Selection and Evaluation of Biotreatment BMP (DA 1 to DA 6) 1 Remaining LID DCV not met by site design HSC, infiltration, or harvest and use BMP for potential biotreatment (ft3): Form 4.2-1 Item 7 - Form 4.3-2 Item 30 – Form 4.3-3 Item 16- Form 4.3-4 Item 9 List pollutants of concern Copy from Form 2.3-1. 2 Biotreatment BMP Selected (Select biotreatment BMP(s) necessary to ensure all pollutants of concern are addressed through Unit Operations and Processes, described in Table 5-5 of the TGD for WQMP) Volume-based biotreatment Use Forms 4.3-6 and 4.3-7 to compute treated volume Flow-based biotreatment Use Form 4.3-8 to compute treated volume Bioretention with underdrain Planter box with underdrain Constructed wetlands Wet extended detention Dry extended detention Vegetated swale Vegetated filter strip Proprietary biotreatment 3 Volume biotreated in volume based biotreatment BMP (ft3): 6 Item 15 + Form 4.3-7 Item 13 4 Compute remaining LID DCV with implementation of volume based biotreatment BMP (ft3): Item 1 – Item 3 5 Remaining fraction of LID DCV for sizing flow based biotreatment BMP: % Item 4 / Item 1 6 Flow-based biotreatment BMP capacity provided (cfs):Use Figure 5-2 of the TGD for WQMP to determine flow capacity required to provide biotreatment of remaining percentage of unmet LID DCV (Item 5), for the project’s precipitation zone (Form 3-1 Item 1) 7 Metrics for MEP determination: •Provided a WQMP with the portion of site area used for suite of LID BMP equal to minimum thresholds in Table 5-7 of the TGD for WQMP for the proposed category of development: If maximized on-site retention BMPs is feasible for partial capture, then LID BMP implementation must be optimized to retain and infiltrate the maximum portion of the DCV possible within the prescribed minimum effective area. The remaining portion of the DCV shall then be mitigated using biotreatment BMP. 0 Form4.3- 0 0 0.0000 Water Quality Management Plan (WQMP) 4-21 Form 4.3-6 Volume Based Biotreatment (DA 1) – Bioretention and Planter Boxes with Underdrains Biotreatment BMP Type (Bioretention w/underdrain, planter box w/underdrain, other comparable BMP) DA DMA BMP Type DA DMA BMP Type DA DMA BMP Type (Use additional forms for more BMPs) 1 Pollutants addressed with BMP List all pollutant of concern that will be effectively reduced through specific Unit Operations and Processes described in Table 5-5 of the TGD for WQMP 2 Amended soil infiltration rate Typical ~ 5.0 3 Amended soil infiltration safety factor Typical ~ 2.0 4 Amended soil design percolation rate (in/hr) Pdesign = Item 2 / Item 3 5 Ponded water drawdown time (hr) Copy Item 6 from Form 4.2-1 6 Maximum ponding depth (ft) see Table 5-6 of the TGD for WQMP for reference to BMP design details 7 Ponding Depth (ft) dBMP = Minimum of (1/12 * Item 4 * Item 5) or Item 6 8 Amended soil surface area (ft2) 9 Amended soil depth (ft) see Table 5-6 of the TGD for WQMP for reference to BMP design details 10 Amended soil porosity, n 11 Gravel depth (ft) see Table 5-6 of the TGD for WQMP for reference to BMP design details 12 Gravel porosity, n 13 Duration of storm as basin is filling (hrs) Typical ~ 3hrs 14 Biotreated Volume (ft3) Vbiotreated = Item 8 * [(Item 7/2) + (Item 9 * Item 10) +(Item 11 * Item 12) + (Item 13 * (Item 4 / 12))] 15 Total biotreated volume from bioretention and/or planter box with underdrains BMP: Sum of Item 14 for all volume-based BMPs included in this form 48 48 48 Water Quality Management Plan (WQMP) 4-22 Form 4.3-7 Volume Based Biotreatment (DA 1) – Constructed Wetlands and Extended Detention Biotreatment BMP Type Constructed wetlands, extended wet detention, extended dry detention, or other comparable proprietary BMP. If BMP includes multiple modules (e.g. forebay and main basin), provide separate estimates for storage and pollutants treated in each module. DA DMA BMP Type DA DMA BMP Type (Use additional forms for more BMPs) Forebay Basin Forebay Basin 1 Pollutants addressed with BMP forebay and basin List all pollutant of concern that will be effectively reduced through specific Unit Operations and Processes described in Table 5-5 of the TGD for WQMP 2 Bottom width (ft) 3 Bottom length (ft) 4 Bottom area (ft2) Abottom = Item 2 * Item 3 5 Side slope (ft/ft) 6 Depth of storage (ft) 7 Water surface area (ft2) Asurface =(Item 2 + (2 * Item 5 * Item 6)) * (Item 3 + (2 * Item 5 * Item 6)) 8 Storage volume (ft3) For BMP with a forebay, ensure fraction of total storage is within ranges specified in BMP specific fact sheets, see Table 5-6 of the TGD for WQMP for reference to BMP design details V =Item 6 / 3 * [Item 4 + Item 7 + (Item 4 * Item 7)^0.5] 9 Drawdown Time (hrs) Copy Item 6 from Form 2.1 10 Outflow rate (cfs) QBMP = (Item 8forebay + Item 8basin) / (Item 9 * 3600) 11 Duration of design storm event (hrs) 12 Biotreated Volume (ft3) Vbiotreated = (Item 8forebay + Item 8basin) +( Item 10 * Item 11 * 3600) 13 Total biotreated volume from constructed wetlands, extended dry detention, or extended wet detention : (Sum of Item 12 for all BMP included in plan) 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 48 48 0.00 0.00 3 3 0 0 0 Water Quality Management Plan (WQMP) 4-23 Form 4.3-8 Flow Based Biotreatment (DA 1) Biotreatment BMP Type Vegetated swale, vegetated filter strip, or other comparable proprietary BMP DA DMA BMP Type DA DMA BMP Type DA DMA BMP Type (Use additional forms for more BMPs) 1 Pollutants addressed with BMP List all pollutant of concern that will be effectively reduced through specific Unit Operations and Processes described in TGD Table 5-5 2 Flow depth for water quality treatment (ft) BMP specific, see Table 5-6 of the TGD for WQMP for reference to BMP design details 3 Bed slope (ft/ft) BMP specific, see Table 5-6 of the TGD for WQMP for reference to BMP design details 4 Manning's roughness coefficient 5 Bottom width (ft) bw = (Form 4.3-5 Item 6 * Item 4) / (1.49 * Item 2^1.67 * Item 3^0.5) 6 Side Slope (ft/ft) BMP specific, see Table 5-6 of the TGD for WQMP for reference to BMP design details 7 Cross sectional area (ft2) A = (Item 5 * Item 2) + (Item 6 * Item 2^2) 8 Water quality flow velocity (ft/sec) V = Form 4.3-5 Item 6 / Item 7 9 Hydraulic residence time (min) Pollutant specific, see Table 5-6 of the TGD for WQMP for reference to BMP design details 10 Length of flow based BMP (ft) L = Item 8 * Item 9 * 60 11 Water surface area at water quality flow depth (ft2) SAtop = (Item 5 + (2 * Item 2 * Item 6)) * Item 10 N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Water Quality Management Plan (WQMP) 4-24 4.3.5 Conformance Summary Complete Form 4.3-9 to demonstrate how on-site LID DCV is met with proposed site design hydrologic source control, infiltration, harvest and use, and/or biotreatment BMP. The bottom line of the form is used to describe the basis for infeasibility determination for on-site LID BMP to achieve full LID DCV, and provides methods for computing remaining volume to be addressed in an alternative compliance plan. If the project has more than one outlet, then complete additional versions of this form for each outlet. Form 4.3-9 Conformance Summary and Alternative Compliance Volume Estimate (DA#1) 1 Total LID DCV for the Project DA-1 (ft3):Copy Item 7 in Form 4.2-1 2 On-site retention with site design hydrologic source control LID BMP (ft3):Copy Item 30 in Form 4.3-2 3 On-site retention with LID infiltration BMP (ft3): Copy Item 16 in Form 4.3-3 4 On-site retention with LID harvest and use BMP (ft3): Copy Item 9 in Form 4.3-4 5 On-site biotreatment with volume based biotreatment BMP (ft3): Copy Item 3 in Form 4.3-5 6 Flow capacity provided by flow based biotreatment BMP (cfs): Copy Item 6 in Form 4.3-5 7 LID BMP performance criteria are achieved if answer to any of the following is “Yes”: •Full retention of LID DCV with site design HSC, infiltration, or harvest and use BMP: Yes No If yes, sum of Items 2, 3, and 4 is greater than Item 1 •Combination of on-site retention BMPs for a portion of the LID DCV and volume-based biotreatment BMP that address all pollutants of concern for the remaining LID DCV: Yes No If yes, a) sum of Items 2, 3, 4, and 5 is greater than Item 1, and Items 2, 3 and 4 are maximized; or b) Item 6 is greater than Form 4.3--5 Item 6 and Items 2, 3 and 4 are maximized ▪On-site retention and infiltration is determined to be infeasible and biotreatment BMP provide biotreatment for all pollutants of concern for full LID DCV: Yes No If yes, Form 4.3-1 Items 7 and 8 were both checked yes 8 If the LID DCV is not achieved by any of these means, then the project may be allowed to develop an alternative compliance plan. Check box that describes the scenario which caused the need for alternative compliance: •Combination of HSC, retention and infiltration, harvest and use, and biotreatment BMPs provide less than full LID DCV capture: YES Checked yes for Form 4.3-5 Item 7, Item 6 is zero, and sum of Items 2, 3, 4, and 5 is less than Item 1. If so, apply water quality credits and calculate volume for alternative compliance, Valt = (Item 1 – Item 2 – Item 3 – Item 4 – Item 5) * (100 - Form 2.4-1 Item 2)% •An approved Watershed Action Plan (WAP) demonstrates that water quality and hydrologic impacts of urbanization are more effective when managed in at an off-site facility: Attach appropriate WAP section, including technical documentation, showing effectiveness comparisons for the project site and regional watershed 2729.80 0 2886.88 0.00 0 0.00 Water Quality Management Plan (WQMP) 4-24.1 Form 4.3-9 Conformance Summary and Alternative Compliance Volume Estimate (DA#2) 1 Total LID DCV for the Project DA-2 (ft3):Copy Item 7 in Form 4.2-1 2 On-site retention with site design hydrologic source control LID BMP (ft3): Copy Item 30 in Form 4.3-2 3 On-site retention with LID infiltration BMP (ft3): Copy Item 16 in Form 4.3-3 4 On-site retention with LID harvest and use BMP (ft3): Copy Item 9 in Form 4.3-4 5 On-site biotreatment with volume based biotreatment BMP (ft3): Copy Item 3 in Form 4.3-5 6 Flow capacity provided by flow based biotreatment BMP (cfs): Copy Item 6 in Form 4.3-5 7 LID BMP performance criteria are achieved if answer to any of the following is “Yes”: x Full retention of LID DCV with site design HSC, infiltration, or harvest and use BMP: Yes No If yes, sum of Items 2, 3, and 4 is greater than Item 1 x Combination of on-site retention BMPs for a portion of the LID DCV and volume-based biotreatment BMP that address all pollutants of concern for the remaining LID DCV: Yes No If yes, a) sum of Items 2, 3, 4, and 5 is greater than Item 1, and Items 2, 3 and 4 are maximized; or b) Item 6 is greater than Form 4.3--5 Item 6 and Items 2, 3 and 4 are maximized On-site retention and infiltration is determined to be infeasible and biotreatment BMP provide biotreatment for all pollutants of concern for full LID DCV: Yes No If yes, Form 4.3-1 Items 7 and 8 were both checked yes 8 If the LID DCV is not achieved by any of these means, then the project may be allowed to develop an alternative compliance plan. 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&ůŽǁĐĂƉĂĐŝƚǇƉƌŽǀŝĚĞĚďǇĨůŽǁďĂƐĞĚďŝŽƚƌĞĂƚŵĞŶƚDW;ĐĨƐͿ͗ŽƉǇ/ƚĞŵϲŝŶ&Žƌŵϰ͘ϯͲϱ >/DWƉĞƌĨŽƌŵĂŶĐĞĐƌŝƚĞƌŝĂĂƌĞĂĐŚŝĞǀĞĚŝĨĂŶƐǁĞƌƚŽĂŶǇŽĨƚŚĞĨŽůůŽǁŝŶŐŝƐ͞zĞƐ͗͟ x &ƵůůƌĞƚĞŶƚŝŽŶŽĨ>/sǁŝƚŚƐŝƚĞĚĞƐŝŐŶ,^͕ŝŶĨŝůƚƌĂƚŝŽŶ͕ŽƌŚĂƌǀĞƐƚĂŶĚƵƐĞDW͗zĞƐEŽ /ĨǇĞƐ͕ƐƵŵŽĨ/ƚĞŵƐϮ͕ϯ͕ĂŶĚϰŝƐŐƌĞĂƚĞƌƚŚĂŶ/ƚĞŵϭ x ŽŵďŝŶĂƚŝŽŶŽĨŽŶͲƐŝƚĞƌĞƚĞŶƚŝŽŶDWƐĨŽƌĂƉŽƌƚŝŽŶŽĨƚŚĞ>/sĂŶĚǀŽůƵŵĞͲďĂƐĞĚďŝŽƚƌĞĂƚŵĞŶƚDWƚŚĂƚ ĂĚĚƌĞƐƐĂůůƉŽůůƵƚĂŶƚƐŽĨĐŽŶĐĞƌŶĨŽƌƚŚĞƌĞŵĂŝŶŝŶŐ>/s͗zĞƐEŽ /ĨǇĞƐ͕ĂͿƐƵŵŽĨ/ƚĞŵƐϮ͕ϯ͕ϰ͕ĂŶĚϱŝƐŐƌĞĂƚĞƌƚŚĂŶ/ƚĞŵϭ͕ĂŶĚ/ƚĞŵƐϮ͕ϯĂŶĚϰĂƌĞŵĂǆŝŵŝǌĞĚ͖ŽƌďͿ/ƚĞŵϲŝƐŐƌĞĂƚĞƌƚŚĂŶ&Žƌŵ ϰ͘ϯͲͲϱ/ƚĞŵϲĂŶĚ/ƚĞŵƐϮ͕ϯĂŶĚϰĂƌĞŵĂǆŝŵŝǌĞĚ KŶͲƐŝƚĞƌĞƚĞŶƚŝŽŶĂŶĚŝŶĨŝůƚƌĂƚŝŽŶŝƐĚĞƚĞƌŵŝŶĞĚƚŽďĞŝŶĨĞĂƐŝďůĞĂŶĚďŝŽƚƌĞĂƚŵĞŶƚDWƉƌŽǀŝĚĞďŝŽƚƌĞĂƚŵĞŶƚĨŽƌĂůů ƉŽůůƵƚĂŶƚƐŽĨĐŽŶĐĞƌŶĨŽƌĨƵůů>/s͗zĞƐEŽ /ĨǇĞƐ͕&Žƌŵϰ͘ϯͲϭ/ƚĞŵƐϳĂŶĚϴǁĞƌĞďŽƚŚĐŚĞĐŬĞĚǇĞƐ /ĨƚŚĞ>/sŝƐŶŽƚĂĐŚŝĞǀĞĚďǇĂŶǇŽĨƚŚĞƐĞŵĞĂŶƐ͕ƚŚĞŶƚŚĞƉƌŽũĞĐƚŵĂǇďĞĂůůŽǁĞĚƚŽĚĞǀĞůŽƉĂŶĂůƚĞƌŶĂƚŝǀĞ ͘ŚĞĐŬďŽǆƚŚĂƚĚĞƐĐƌŝďĞƐƚŚĞƐĐĞŶĂƌŝŽǁŚŝĐŚĐĂƵƐĞĚƚŚĞŶĞĞĚĨŽƌĂůƚĞƌŶĂƚŝǀĞĐŽŵƉůŝĂŶĐĞ͗ x ŽŵďŝŶĂƚŝŽŶŽĨ,^͕ƌĞƚĞŶƚŝŽŶĂŶĚŝŶĨŝůƚƌĂƚŝŽŶ͕ŚĂƌǀĞƐƚĂŶĚƵƐĞ͕ĂŶĚďŝŽƚƌĞĂƚŵĞŶƚDWƐƉƌŽǀŝĚĞůĞƐƐƚŚĂŶĨƵůů>/s ĐĂƉƚƵƌĞ͗z^ ŚĞĐŬĞĚǇĞƐĨŽƌ&Žƌŵϰ͘ϯͲϱ/ƚĞŵϳ͕/ƚĞŵϲŝƐǌĞƌŽ͕ĂŶĚƐƵŵŽĨ/ƚĞŵƐϮ͕ϯ͕ϰ͕ĂŶĚϱŝƐůĞƐƐƚŚĂŶ/ƚĞŵϭ͘/ĨƐŽ͕ĂƉƉůǇǁĂƚĞƌƋƵĂůŝƚǇĐƌĞĚŝƚƐ ĂŶĚĐĂůĐƵůĂƚĞǀŽůƵŵĞĨŽƌĂůƚĞƌŶĂƚŝǀĞĐŽŵƉůŝĂŶĐĞ͕sĂůƚс;/ƚĞŵϭʹ/ƚĞŵϮʹ/ƚĞŵϯʹ/ƚĞŵϰʹ/ƚĞŵϱͿΎ;ϭϬϬͲ&ŽƌŵϮ͘ϰͲϭ/ƚĞŵϮͿй x ŶĂƉƉƌŽǀĞĚtĂƚĞƌƐŚĞĚĐƚŝŽŶWůĂŶ;tWͿĚĞŵŽŶƐƚƌĂƚĞƐƚŚĂƚǁĂƚĞƌƋƵĂůŝƚǇĂŶĚŚǇĚƌŽůŽŐŝĐŝŵƉĂĐƚƐŽĨƵƌďĂŶŝǌĂƚŝŽŶ ĂƌĞŵŽƌĞĞĨĨĞĐƚŝǀĞǁŚĞŶŵĂŶĂŐĞĚŝŶĂƚĂŶŽĨĨͲƐŝƚĞĨĂĐŝůŝƚǇ͗ ƚƚĂĐŚĂƉƉƌŽƉƌŝĂƚĞtWƐĞĐƚŝŽŶ͕ŝŶĐůƵĚŝŶŐƚĞĐŚŶŝĐĂůĚŽĐƵŵĞŶƚĂƚŝŽŶ͕ƐŚŽǁŝŶŐĞĨĨĞĐƚŝǀĞŶĞƐƐĐŽŵƉĂƌŝƐŽŶƐĨŽƌƚŚĞƉƌŽũĞĐƚƐŝƚĞĂŶĚ ƌĞŐŝŽŶĂůǁĂƚĞƌƐŚĞĚ 5296.56 0 5363.66 Ϭ͘ϬϬ Ϭ Ϭ͘ϬϬ ŽƉǇ/ƚĞŵϳŝŶ&Žƌŵϰ͘ϮͲϭ tĂƚĞƌYƵĂůŝƚǇDĂŶĂŐĞŵĞŶƚWůĂŶ;tYDWͿ ϰͲϮϰ͘3 &Žƌŵϰ͘ϯͲϵŽŶĨŽƌŵĂŶĐĞ^ƵŵŵĂƌǇĂŶĚůƚĞƌŶĂƚŝǀĞ ŽŵƉůŝĂŶĐĞsŽůƵŵĞƐƚŝŵĂƚĞ;η4Ϳ ϭdŽƚĂů>/sĨŽƌƚŚĞWƌŽũĞĐƚͲ4;ĨƚϯͿ͗ KŶͲƐŝƚĞƌĞƚĞŶƚŝŽŶǁŝƚŚƐŝƚĞĚĞƐŝŐŶŚǇĚƌŽůŽŐŝĐƐŽƵƌĐĞĐŽŶƚƌŽů>/DW;ĨƚϯͿ͗ŽƉǇ/ƚĞŵϯϬŝŶ&Žƌŵϰ͘ϯͲϮ KŶͲƐŝƚĞƌĞƚĞŶƚŝŽŶǁŝƚŚ>/ŝŶĨŝůƚƌĂƚŝŽŶDW;ĨƚϯͿ͗ŽƉǇ/ƚĞŵϭϲŝŶ&Žƌŵϰ͘ϯͲϯ KŶͲƐŝƚĞƌĞƚĞŶƚŝŽŶǁŝƚŚ>/ŚĂƌǀĞƐƚĂŶĚƵƐĞDW;ĨƚϯͿ͗ŽƉǇ/ƚĞŵϵŝŶ&Žƌŵϰ͘ϯͲϰ KŶͲƐŝƚĞďŝŽƚƌĞĂƚŵĞŶƚǁŝƚŚǀŽůƵŵĞďĂƐĞĚďŝŽƚƌĞĂƚŵĞŶƚDW;ĨƚϯͿ͗ŽƉǇ/ƚĞŵϯŝŶ&Žƌŵϰ͘ϯͲϱ &ůŽǁĐĂƉĂĐŝƚǇƉƌŽǀŝĚĞĚďǇĨůŽǁďĂƐĞĚďŝŽƚƌĞĂƚŵĞŶƚDW;ĐĨƐͿ͗ŽƉǇ/ƚĞŵϲŝŶ&Žƌŵϰ͘ϯͲϱ >/DWƉĞƌĨŽƌŵĂŶĐĞĐƌŝƚĞƌŝĂĂƌĞĂĐŚŝĞǀĞĚŝĨĂŶƐǁĞƌƚŽĂŶǇŽĨƚŚĞĨŽůůŽǁŝŶŐŝƐ͞zĞƐ͗͟ x &ƵůůƌĞƚĞŶƚŝŽŶŽĨ>/sǁŝƚŚƐŝƚĞĚĞƐŝŐŶ,^͕ŝŶĨŝůƚƌĂƚŝŽŶ͕ŽƌŚĂƌǀĞƐƚĂŶĚƵƐĞDW͗zĞƐEŽ /ĨǇĞƐ͕ƐƵŵŽĨ/ƚĞŵƐϮ͕ϯ͕ĂŶĚϰŝƐŐƌĞĂƚĞƌƚŚĂŶ/ƚĞŵϭ x ŽŵďŝŶĂƚŝŽŶŽĨŽŶͲƐŝƚĞƌĞƚĞŶƚŝŽŶDWƐĨŽƌĂƉŽƌƚŝŽŶŽĨƚŚĞ>/sĂŶĚǀŽůƵŵĞͲďĂƐĞĚďŝŽƚƌĞĂƚŵĞŶƚDWƚŚĂƚ ĂĚĚƌĞƐƐĂůůƉŽůůƵƚĂŶƚƐŽĨĐŽŶĐĞƌŶĨŽƌƚŚĞƌĞŵĂŝŶŝŶŐ>/s͗zĞƐEŽ /ĨǇĞƐ͕ĂͿƐƵŵŽĨ/ƚĞŵƐϮ͕ϯ͕ϰ͕ĂŶĚϱŝƐŐƌĞĂƚĞƌƚŚĂŶ/ƚĞŵϭ͕ĂŶĚ/ƚĞŵƐϮ͕ϯĂŶĚϰĂƌĞŵĂǆŝŵŝǌĞĚ͖ŽƌďͿ/ƚĞŵϲŝƐŐƌĞĂƚĞƌƚŚĂŶ&Žƌŵ ϰ͘ϯͲͲϱ/ƚĞŵϲĂŶĚ/ƚĞŵƐϮ͕ϯĂŶĚϰĂƌĞŵĂǆŝŵŝǌĞĚ KŶͲƐŝƚĞƌĞƚĞŶƚŝŽŶĂŶĚŝŶĨŝůƚƌĂƚŝŽŶŝƐĚĞƚĞƌŵŝŶĞĚƚŽďĞŝŶĨĞĂƐŝďůĞĂŶĚďŝŽƚƌĞĂƚŵĞŶƚDWƉƌŽǀŝĚĞďŝŽƚƌĞĂƚŵĞŶƚĨŽƌĂůů ƉŽůůƵƚĂŶƚƐŽĨĐŽŶĐĞƌŶĨŽƌĨƵůů>/s͗zĞƐEŽ /ĨǇĞƐ͕&Žƌŵϰ͘ϯͲϭ/ƚĞŵƐϳĂŶĚϴǁĞƌĞďŽƚŚĐŚĞĐŬĞĚǇĞƐ /ĨƚŚĞ>/sŝƐŶŽƚĂĐŚŝĞǀĞĚďǇĂŶǇŽĨƚŚĞƐĞŵĞĂŶƐ͕ƚŚĞŶƚŚĞƉƌŽũĞĐƚŵĂǇďĞĂůůŽǁĞĚƚŽĚĞǀĞůŽƉĂŶĂůƚĞƌŶĂƚŝǀĞ ͘ŚĞĐŬďŽǆƚŚĂƚĚĞƐĐƌŝďĞƐƚŚĞƐĐĞŶĂƌŝŽǁŚŝĐŚĐĂƵƐĞĚƚŚĞŶĞĞĚĨŽƌĂůƚĞƌŶĂƚŝǀĞĐŽŵƉůŝĂŶĐĞ͗ x ŽŵďŝŶĂƚŝŽŶŽĨ,^͕ƌĞƚĞŶƚŝŽŶĂŶĚŝŶĨŝůƚƌĂƚŝŽŶ͕ŚĂƌǀĞƐƚĂŶĚƵƐĞ͕ĂŶĚďŝŽƚƌĞĂƚŵĞŶƚDWƐƉƌŽǀŝĚĞůĞƐƐƚŚĂŶĨƵůů>/s ĐĂƉƚƵƌĞ͗z^ ŚĞĐŬĞĚǇĞƐĨŽƌ&Žƌŵϰ͘ϯͲϱ/ƚĞŵϳ͕/ƚĞŵϲŝƐǌĞƌŽ͕ĂŶĚƐƵŵŽĨ/ƚĞŵƐϮ͕ϯ͕ϰ͕ĂŶĚϱŝƐůĞƐƐƚŚĂŶ/ƚĞŵϭ͘/ĨƐŽ͕ĂƉƉůǇǁĂƚĞƌƋƵĂůŝƚǇĐƌĞĚŝƚƐ ĂŶĚĐĂůĐƵůĂƚĞǀŽůƵŵĞĨŽƌĂůƚĞƌŶĂƚŝǀĞĐŽŵƉůŝĂŶĐĞ͕sĂůƚс;/ƚĞŵϭʹ/ƚĞŵϮʹ/ƚĞŵϯʹ/ƚĞŵϰʹ/ƚĞŵϱͿΎ;ϭϬϬͲ&ŽƌŵϮ͘ϰͲϭ/ƚĞŵϮͿй x ŶĂƉƉƌŽǀĞĚtĂƚĞƌƐŚĞĚĐƚŝŽŶWůĂŶ;tWͿĚĞŵŽŶƐƚƌĂƚĞƐƚŚĂƚǁĂƚĞƌƋƵĂůŝƚǇĂŶĚŚǇĚƌŽůŽŐŝĐŝŵƉĂĐƚƐŽĨƵƌďĂŶŝǌĂƚŝŽŶ ĂƌĞŵŽƌĞĞĨĨĞĐƚŝǀĞǁŚĞŶŵĂŶĂŐĞĚŝŶĂƚĂŶŽĨĨͲƐŝƚĞĨĂĐŝůŝƚǇ͗ ƚƚĂĐŚĂƉƉƌŽƉƌŝĂƚĞtWƐĞĐƚŝŽŶ͕ŝŶĐůƵĚŝŶŐƚĞĐŚŶŝĐĂůĚŽĐƵŵĞŶƚĂƚŝŽŶ͕ƐŚŽǁŝŶŐĞĨĨĞĐƚŝǀĞŶĞƐƐĐŽŵƉĂƌŝƐŽŶƐĨŽƌƚŚĞƉƌŽũĞĐƚƐŝƚĞĂŶĚ ƌĞŐŝŽŶĂůǁĂƚĞƌƐŚĞĚ 13060.82 0 13160.53 Ϭ͘ϬϬ Ϭ Ϭ͘ϬϬ ŽƉǇ/ƚĞŵϳŝŶ&Žƌŵϰ͘ϮͲϭ tĂƚĞƌYƵĂůŝƚǇDĂŶĂŐĞŵĞŶƚWůĂŶ;tYDWͿ ϰͲϮϰ͘4 &Žƌŵϰ͘ϯͲϵŽŶĨŽƌŵĂŶĐĞ^ƵŵŵĂƌǇĂŶĚůƚĞƌŶĂƚŝǀĞ ŽŵƉůŝĂŶĐĞsŽůƵŵĞƐƚŝŵĂƚĞ;η5Ϳ ϭdŽƚĂů>/sĨŽƌƚŚĞWƌŽũĞĐƚͲ5 ;ĨƚϯͿ͗ KŶͲƐŝƚĞƌĞƚĞŶƚŝŽŶǁŝƚŚƐŝƚĞĚĞƐŝŐŶŚǇĚƌŽůŽŐŝĐƐŽƵƌĐĞĐŽŶƚƌŽů>/DW;ĨƚϯͿ͗ ŽƉǇ/ƚĞŵϯϬŝŶ&Žƌŵϰ͘ϯͲϮ KŶͲƐŝƚĞƌĞƚĞŶƚŝŽŶǁŝƚŚ>/ŝŶĨŝůƚƌĂƚŝŽŶDW;ĨƚϯͿ͗ ŽƉǇ/ƚĞŵϭϲŝŶ&Žƌŵϰ͘ϯͲϯ KŶͲƐŝƚĞƌĞƚĞŶƚŝŽŶǁŝƚŚ>/ŚĂƌǀĞƐƚĂŶĚƵƐĞDW;ĨƚϯͿ͗ ŽƉǇ/ƚĞŵϵŝŶ&Žƌŵϰ͘ϯͲϰ KŶͲƐŝƚĞďŝŽƚƌĞĂƚŵĞŶƚǁŝƚŚǀŽůƵŵĞďĂƐĞĚďŝŽƚƌĞĂƚŵĞŶƚDW;ĨƚϯͿ͗ŽƉǇ/ƚĞŵϯŝŶ&Žƌŵϰ͘ϯͲϱ &ůŽǁĐĂƉĂĐŝƚǇƉƌŽǀŝĚĞĚďǇĨůŽǁďĂƐĞĚďŝŽƚƌĞĂƚŵĞŶƚDW;ĐĨƐͿ͗ ŽƉǇ/ƚĞŵϲŝŶ&Žƌŵϰ͘ϯͲϱ >/DWƉĞƌĨŽƌŵĂŶĐĞĐƌŝƚĞƌŝĂĂƌĞĂĐŚŝĞǀĞĚŝĨĂŶƐǁĞƌƚŽĂŶǇŽĨƚŚĞĨŽůůŽǁŝŶŐŝƐ͞zĞƐ͗͟ x &ƵůůƌĞƚĞŶƚŝŽŶŽĨ>/sǁŝƚŚƐŝƚĞĚĞƐŝŐŶ,^͕ŝŶĨŝůƚƌĂƚŝŽŶ͕ŽƌŚĂƌǀĞƐƚĂŶĚƵƐĞDW͗zĞƐEŽ /ĨǇĞƐ͕ƐƵŵŽĨ/ƚĞŵƐϮ͕ϯ͕ĂŶĚϰŝƐŐƌĞĂƚĞƌƚŚĂŶ/ƚĞŵϭ x ŽŵďŝŶĂƚŝŽŶŽĨŽŶͲƐŝƚĞƌĞƚĞŶƚŝŽŶDWƐĨŽƌĂƉŽƌƚŝŽŶŽĨƚŚĞ>/sĂŶĚǀŽůƵŵĞͲďĂƐĞĚďŝŽƚƌĞĂƚŵĞŶƚDWƚŚĂƚ ĂĚĚƌĞƐƐĂůůƉŽůůƵƚĂŶƚƐŽĨĐŽŶĐĞƌŶĨŽƌƚŚĞƌĞŵĂŝŶŝŶŐ>/s͗zĞƐEŽ /ĨǇĞƐ͕ĂͿƐƵŵŽĨ/ƚĞŵƐϮ͕ϯ͕ϰ͕ĂŶĚϱŝƐŐƌĞĂƚĞƌƚŚĂŶ/ƚĞŵϭ͕ĂŶĚ/ƚĞŵƐϮ͕ϯĂŶĚϰĂƌĞŵĂǆŝŵŝǌĞĚ͖ŽƌďͿ/ƚĞŵϲŝƐŐƌĞĂƚĞƌƚŚĂŶ&Žƌŵ ϰ͘ϯͲͲϱ/ƚĞŵϲĂŶĚ/ƚĞŵƐϮ͕ϯĂŶĚϰĂƌĞŵĂǆŝŵŝǌĞĚ KŶͲƐŝƚĞƌĞƚĞŶƚŝŽŶĂŶĚŝŶĨŝůƚƌĂƚŝŽŶŝƐĚĞƚĞƌŵŝŶĞĚƚŽďĞŝŶĨĞĂƐŝďůĞĂŶĚďŝŽƚƌĞĂƚŵĞŶƚDWƉƌŽǀŝĚĞďŝŽƚƌĞĂƚŵĞŶƚĨŽƌĂůů ƉŽůůƵƚĂŶƚƐŽĨĐŽŶĐĞƌŶĨŽƌĨƵůů>/s͗zĞƐEŽ /ĨǇĞƐ͕&Žƌŵϰ͘ϯͲϭ/ƚĞŵƐϳĂŶĚϴǁĞƌĞďŽƚŚĐŚĞĐŬĞĚǇĞƐ /ĨƚŚĞ>/sŝƐŶŽƚĂĐŚŝĞǀĞĚďǇĂŶǇŽĨƚŚĞƐĞŵĞĂŶƐ͕ƚŚĞŶƚŚĞƉƌŽũĞĐƚŵĂǇďĞĂůůŽǁĞĚƚŽĚĞǀĞůŽƉĂŶĂůƚĞƌŶĂƚŝǀĞ ͘ŚĞĐŬďŽǆƚŚĂƚĚĞƐĐƌŝďĞƐƚŚĞƐĐĞŶĂƌŝŽǁŚŝĐŚĐĂƵƐĞĚƚŚĞŶĞĞĚĨŽƌĂůƚĞƌŶĂƚŝǀĞĐŽŵƉůŝĂŶĐĞ͗ x ŽŵďŝŶĂƚŝŽŶŽĨ,^͕ƌĞƚĞŶƚŝŽŶĂŶĚŝŶĨŝůƚƌĂƚŝŽŶ͕ŚĂƌǀĞƐƚĂŶĚƵƐĞ͕ĂŶĚďŝŽƚƌĞĂƚŵĞŶƚDWƐƉƌŽǀŝĚĞůĞƐƐƚŚĂŶĨƵůů>/s ĐĂƉƚƵƌĞ͗z^ ŚĞĐŬĞĚǇĞƐĨŽƌ&Žƌŵϰ͘ϯͲϱ/ƚĞŵϳ͕/ƚĞŵϲŝƐǌĞƌŽ͕ĂŶĚƐƵŵŽĨ/ƚĞŵƐϮ͕ϯ͕ϰ͕ĂŶĚϱŝƐůĞƐƐƚŚĂŶ/ƚĞŵϭ͘/ĨƐŽ͕ĂƉƉůǇǁĂƚĞƌƋƵĂůŝƚǇĐƌĞĚŝƚƐ ĂŶĚĐĂůĐƵůĂƚĞǀŽůƵŵĞĨŽƌĂůƚĞƌŶĂƚŝǀĞĐŽŵƉůŝĂŶĐĞ͕sĂůƚс;/ƚĞŵϭʹ/ƚĞŵϮʹ/ƚĞŵϯʹ/ƚĞŵϰʹ/ƚĞŵϱͿΎ;ϭϬϬͲ&ŽƌŵϮ͘ϰͲϭ/ƚĞŵϮͿй x ŶĂƉƉƌŽǀĞĚtĂƚĞƌƐŚĞĚĐƚŝŽŶWůĂŶ;tWͿĚĞŵŽŶƐƚƌĂƚĞƐƚŚĂƚǁĂƚĞƌƋƵĂůŝƚǇĂŶĚŚǇĚƌŽůŽŐŝĐŝŵƉĂĐƚƐŽĨƵƌďĂŶŝǌĂƚŝŽŶ ĂƌĞŵŽƌĞĞĨĨĞĐƚŝǀĞǁŚĞŶŵĂŶĂŐĞĚŝŶĂƚĂŶŽĨĨͲƐŝƚĞĨĂĐŝůŝƚǇ͗ ƚƚĂĐŚĂƉƉƌŽƉƌŝĂƚĞtWƐĞĐƚŝŽŶ͕ŝŶĐůƵĚŝŶŐƚĞĐŚŶŝĐĂůĚŽĐƵŵĞŶƚĂƚŝŽŶ͕ƐŚŽǁŝŶŐĞĨĨĞĐƚŝǀĞŶĞƐƐĐŽŵƉĂƌŝƐŽŶƐĨŽƌƚŚĞƉƌŽũĞĐƚƐŝƚĞĂŶĚ ƌĞŐŝŽŶĂůǁĂƚĞƌƐŚĞĚ 881.29 0 1,656.80 Ϭ͘ϬϬ Ϭ Ϭ͘ϬϬ ŽƉǇ/ƚĞŵϳŝŶ&Žƌŵϰ͘ϮͲϭ tĂƚĞƌYƵĂůŝƚǇDĂŶĂŐĞŵĞŶƚWůĂŶ;tYDWͿ ϰͲϮϰ͘5 &Žƌŵϰ͘ϯͲϵŽŶĨŽƌŵĂŶĐĞ^ƵŵŵĂƌǇĂŶĚůƚĞƌŶĂƚŝǀĞ ŽŵƉůŝĂŶĐĞsŽůƵŵĞƐƚŝŵĂƚĞ;η6Ϳ ϭdŽƚĂů>/sĨŽƌƚŚĞWƌŽũĞĐƚͲ6;ĨƚϯͿ͗ KŶͲƐŝƚĞƌĞƚĞŶƚŝŽŶǁŝƚŚƐŝƚĞĚĞƐŝŐŶŚǇĚƌŽůŽŐŝĐƐŽƵƌĐĞĐŽŶƚƌŽů>/DW;ĨƚϯͿ͗ŽƉǇ/ƚĞŵϯϬŝŶ&Žƌŵϰ͘ϯͲϮ KŶͲƐŝƚĞƌĞƚĞŶƚŝŽŶǁŝƚŚ>/ŝŶĨŝůƚƌĂƚŝŽŶDW;ĨƚϯͿ͗ŽƉǇ/ƚĞŵϭϲŝŶ&Žƌŵϰ͘ϯͲϯ KŶͲƐŝƚĞƌĞƚĞŶƚŝŽŶǁŝƚŚ>/ŚĂƌǀĞƐƚĂŶĚƵƐĞDW;ĨƚϯͿ͗ŽƉǇ/ƚĞŵϵŝŶ&Žƌŵϰ͘ϯͲϰ KŶͲƐŝƚĞďŝŽƚƌĞĂƚŵĞŶƚǁŝƚŚǀŽůƵŵĞďĂƐĞĚďŝŽƚƌĞĂƚŵĞŶƚDW;ĨƚϯͿ͗ŽƉǇ/ƚĞŵϯŝŶ&Žƌŵϰ͘ϯͲϱ &ůŽǁĐĂƉĂĐŝƚǇƉƌŽǀŝĚĞĚďǇĨůŽǁďĂƐĞĚďŝŽƚƌĞĂƚŵĞŶƚDW;ĐĨƐͿ͗ŽƉǇ/ƚĞŵϲŝŶ&Žƌŵϰ͘ϯͲϱ >/DWƉĞƌĨŽƌŵĂŶĐĞĐƌŝƚĞƌŝĂĂƌĞĂĐŚŝĞǀĞĚŝĨĂŶƐǁĞƌƚŽĂŶǇŽĨƚŚĞĨŽůůŽǁŝŶŐŝƐ͞zĞƐ͗͟ x &ƵůůƌĞƚĞŶƚŝŽŶŽĨ>/sǁŝƚŚƐŝƚĞĚĞƐŝŐŶ,^͕ŝŶĨŝůƚƌĂƚŝŽŶ͕ŽƌŚĂƌǀĞƐƚĂŶĚƵƐĞDW͗zĞƐEŽ /ĨǇĞƐ͕ƐƵŵŽĨ/ƚĞŵƐϮ͕ϯ͕ĂŶĚϰŝƐŐƌĞĂƚĞƌƚŚĂŶ/ƚĞŵϭ x ŽŵďŝŶĂƚŝŽŶŽĨŽŶͲƐŝƚĞƌĞƚĞŶƚŝŽŶDWƐĨŽƌĂƉŽƌƚŝŽŶŽĨƚŚĞ>/sĂŶĚǀŽůƵŵĞͲďĂƐĞĚďŝŽƚƌĞĂƚŵĞŶƚDWƚŚĂƚ ĂĚĚƌĞƐƐĂůůƉŽůůƵƚĂŶƚƐŽĨĐŽŶĐĞƌŶĨŽƌƚŚĞƌĞŵĂŝŶŝŶŐ>/s͗zĞƐEŽ /ĨǇĞƐ͕ĂͿƐƵŵŽĨ/ƚĞŵƐϮ͕ϯ͕ϰ͕ĂŶĚϱŝƐŐƌĞĂƚĞƌƚŚĂŶ/ƚĞŵϭ͕ĂŶĚ/ƚĞŵƐϮ͕ϯĂŶĚϰĂƌĞŵĂǆŝŵŝǌĞĚ͖ŽƌďͿ/ƚĞŵϲŝƐŐƌĞĂƚĞƌƚŚĂŶ&Žƌŵ ϰ͘ϯͲͲϱ/ƚĞŵϲĂŶĚ/ƚĞŵƐϮ͕ϯĂŶĚϰĂƌĞŵĂǆŝŵŝǌĞĚ KŶͲƐŝƚĞƌĞƚĞŶƚŝŽŶĂŶĚŝŶĨŝůƚƌĂƚŝŽŶŝƐĚĞƚĞƌŵŝŶĞĚƚŽďĞŝŶĨĞĂƐŝďůĞĂŶĚďŝŽƚƌĞĂƚŵĞŶƚDWƉƌŽǀŝĚĞďŝŽƚƌĞĂƚŵĞŶƚĨŽƌĂůů ƉŽůůƵƚĂŶƚƐŽĨĐŽŶĐĞƌŶĨŽƌĨƵůů>/s͗zĞƐEŽ /ĨǇĞƐ͕&Žƌŵϰ͘ϯͲϭ/ƚĞŵƐϳĂŶĚϴǁĞƌĞďŽƚŚĐŚĞĐŬĞĚǇĞƐ /ĨƚŚĞ>/sŝƐŶŽƚĂĐŚŝĞǀĞĚďǇĂŶǇŽĨƚŚĞƐĞŵĞĂŶƐ͕ƚŚĞŶƚŚĞƉƌŽũĞĐƚŵĂǇďĞĂůůŽǁĞĚƚŽĚĞǀĞůŽƉĂŶĂůƚĞƌŶĂƚŝǀĞ ͘ŚĞĐŬďŽǆƚŚĂƚĚĞƐĐƌŝďĞƐƚŚĞƐĐĞŶĂƌŝŽǁŚŝĐŚĐĂƵƐĞĚƚŚĞŶĞĞĚĨŽƌĂůƚĞƌŶĂƚŝǀĞĐŽŵƉůŝĂŶĐĞ͗ x ŽŵďŝŶĂƚŝŽŶŽĨ,^͕ƌĞƚĞŶƚŝŽŶĂŶĚŝŶĨŝůƚƌĂƚŝŽŶ͕ŚĂƌǀĞƐƚĂŶĚƵƐĞ͕ĂŶĚďŝŽƚƌĞĂƚŵĞŶƚDWƐƉƌŽǀŝĚĞůĞƐƐƚŚĂŶĨƵůů>/s ĐĂƉƚƵƌĞ͗z^ ŚĞĐŬĞĚǇĞƐĨŽƌ&Žƌŵϰ͘ϯͲϱ/ƚĞŵϳ͕/ƚĞŵϲŝƐǌĞƌŽ͕ĂŶĚƐƵŵŽĨ/ƚĞŵƐϮ͕ϯ͕ϰ͕ĂŶĚϱŝƐůĞƐƐƚŚĂŶ/ƚĞŵϭ͘/ĨƐŽ͕ĂƉƉůǇǁĂƚĞƌƋƵĂůŝƚǇĐƌĞĚŝƚƐ ĂŶĚĐĂůĐƵůĂƚĞǀŽůƵŵĞĨŽƌĂůƚĞƌŶĂƚŝǀĞĐŽŵƉůŝĂŶĐĞ͕sĂůƚс;/ƚĞŵϭʹ/ƚĞŵϮʹ/ƚĞŵϯʹ/ƚĞŵϰʹ/ƚĞŵϱͿΎ;ϭϬϬͲ&ŽƌŵϮ͘ϰͲϭ/ƚĞŵϮͿй x ŶĂƉƉƌŽǀĞĚtĂƚĞƌƐŚĞĚĐƚŝŽŶWůĂŶ;tWͿĚĞŵŽŶƐƚƌĂƚĞƐƚŚĂƚǁĂƚĞƌƋƵĂůŝƚǇĂŶĚŚǇĚƌŽůŽŐŝĐŝŵƉĂĐƚƐŽĨƵƌďĂŶŝǌĂƚŝŽŶ ĂƌĞŵŽƌĞĞĨĨĞĐƚŝǀĞǁŚĞŶŵĂŶĂŐĞĚŝŶĂƚĂŶŽĨĨͲƐŝƚĞĨĂĐŝůŝƚǇ͗ ƚƚĂĐŚĂƉƉƌŽƉƌŝĂƚĞtWƐĞĐƚŝŽŶ͕ŝŶĐůƵĚŝŶŐƚĞĐŚŶŝĐĂůĚŽĐƵŵĞŶƚĂƚŝŽŶ͕ƐŚŽǁŝŶŐĞĨĨĞĐƚŝǀĞŶĞƐƐĐŽŵƉĂƌŝƐŽŶƐĨŽƌƚŚĞƉƌŽũĞĐƚƐŝƚĞĂŶĚ ƌĞŐŝŽŶĂůǁĂƚĞƌƐŚĞĚ 7589.94 0 7674.75 Ϭ͘ϬϬ Ϭ Ϭ͘ϬϬ ŽƉǇ/ƚĞŵϳŝŶ&Žƌŵϰ͘ϮͲϭ Water Quality Management Plan (WQMP) 4-25 4.3.6 Hydromodification Control BMP Use Form 4.3-10 to compute the remaining runoff volume retention, after LID BMP are implemented, needed to address HCOC, and the increase in time of concentration and decrease in peak runoff necessary to meet targets for protection of waterbodies with a potential HCOC. Describe hydromodification control BMP that address HCOC, which may include off-site BMP and/or in-stream controls. Section 5.6 of the TGD for WQMP provides additional details on selection and evaluation of hydromodification control BMP. Form 4.3-10 Hydromodification Control BMPs (DA #1) 1 Volume reduction needed for HCOC performance criteria (ft3): (Form 4.2-2 Item 4 * 0.95) – Form 4.2-2 Item 1 3 Remaining volume for HCOC volume capture (ft3): Item 1 – Item 2 4 Volume capture provided by incorporating additional on-site or off-site retention BMPs (ft3): Existing downstream BMP may be used to demonstrate additional volume capture (if so, attach to this WQMP a hydrologic analysis showing how the additional volume would be retained during a 2-yr storm event for the regional watershed) 5 If Item 4 is less than Item 3, incorporate in-stream controls on downstream waterbody segment to prevent impacts due to hydromodification Attach in-stream control BMP selection and evaluation to this WQMP 6 Is Form 4.2-2 Item 11 less than or equal to 5%: Yes No If yes, HCOC performance criteria is achieved. If no, select one or more mitigation options below: •Demonstrate increase in time of concentration achieved by proposed LID site design, LID BMP, and additional on-site or off-site retention BMP BMP upstream of a waterbody segment with a potential HCOC may be used to demonstrate increased time of concentration through hydrograph attenuation (if so, show that the hydraulic residence time provided in BMP for a 2-year storm event is equal or greater than the addition time of concentration requirement in Form 4.2-4 Item 15) •Increase time of concentration by preserving pre-developed flow path and/or increase travel time by reducing slope and increasing cross-sectional area and roughness for proposed on-site conveyance facilities •Incorporate appropriate in-stream controls for downstream waterbody segment to prevent impacts due to hydromodification, in a plan approved and signed by a licensed engineer in the State of California 7 Form 4.2-2 Item 12 less than or equal to 5%: Yes No If yes, HCOC performance criteria is achieved. If no, select one or more mitigation options below: •Demonstrate reduction in peak runoff achieved by proposed LID site design, LID BMPs, and additional on-site or off- site retention BMPs BMPs upstream of a waterbody segment with a potential HCOC may be used to demonstrate additional peak runoff reduction through hydrograph attenuation (if so, attach to this WQMP, a hydrograph analysis showing how the peak runoff would be reduced during a 2-yr storm event) •Incorporate appropriate in-stream controls for downstream waterbody segment to prevent impacts due to hydromodification, in a plan approved and signed by a licensed engineer in the State of California 0.00 0.00 2 On-site retention with site design hydrologic source control, infiltration, and harvest and use LID BMP (ft3): 2886.88 Sum of Form 4.3-9 Items 2, 3, and 4 Evaluate option to increase implementation of on-site retention in Forms 4.3-2, 4.3-3, and 4.3-4 in excess of LID DCV toward achieving HCOC volume reduction Water Quality Management Plan (WQMP) 4-25.1 Form 4.3-10 Hydromodification Control BMPs (DA #2) 1 Volume reduction needed for HCOC performance criteria (ft3): (Form 4.2-2 Item 4 * 0.95) – Form 4.2-2 Item 1 3 Remaining volume for HCOC volume capture (ft3): Item 1 – Item 2 4 Volume capture provided by incorporating additional on-site or off-site retention BMPs (ft3): Existing downstream BMP may be used to demonstrate additional volume capture (if so, attach to this WQMP a hydrologic analysis showing how the additional volume would be retained during a 2-yr storm event for the regional watershed) 5 If Item 4 is less than Item 3, incorporate in-stream controls on downstream waterbody segment to prevent impacts due to hydromodification Attach in-stream control BMP selection and evaluation to this WQMP 6 Is Form 4.2-2 Item 11 less than or equal to 5%: Yes No If yes, HCOC performance criteria is achieved. If no, select one or more mitigation options below: x Demonstrate increase in time of concentration achieved by proposed LID site design, LID BMP, and additional on-site or off-site retention BMP BMP upstream of a waterbody segment with a potential HCOC may be used to demonstrate increased time of concentration through hydrograph attenuation (if so, show that the hydraulic residence time provided in BMP for a 2-year storm event is equal or greater than the addition time of concentration requirement in Form 4.2-4 Item 15) x Increase time of concentration by preserving pre-developed flow path and/or increase travel time by reducing slope and increasing cross-sectional area and roughness for proposed on-site conveyance facilities x Incorporate appropriate in-stream controls for downstream waterbody segment to prevent impacts due to hydromodification, in a plan approved and signed by a licensed engineer in the State of California 7 Form 4.2-2 Item 12 less than or equal to 5%: Yes No If yes, HCOC performance criteria is achieved. If no, select one or more mitigation options below: x Demonstrate reduction in peak runoff achieved by proposed LID site design, LID BMPs, and additional on-site or off- site retention BMPs BMPs upstream of a waterbody segment with a potential HCOC may be used to demonstrate additional peak runoff reduction through hydrograph attenuation (if so, attach to this WQMP, a hydrograph analysis showing how the peak runoff would be reduced during a 2-yr storm event) x Incorporate appropriate in-stream controls for downstream waterbody segment to prevent impacts due to hydromodification, in a plan approved and signed by a licensed engineer in the State of California Ϭ͘ϬϬ 2 On-site retention with site design hydrologic source control, infiltration, and Sum of Form 4.3-9 Items 2, 3, and 4 Evaluate option to increase implementation of on-site retention in Forms 4.3-2, 4.3-3, and 4.3-4 in excess of LID DCV toward achieving HCOC volume reduction Ϭ͘ϬϬ harvest and use LID BMP (ft3):8639.40 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DWƵƉƐƚƌĞĂŵŽĨĂǁĂƚĞƌďŽĚǇƐĞŐŵĞŶƚǁŝƚŚĂƉŽƚĞŶƚŝĂů,KŵĂǇďĞƵƐĞĚƚŽĚĞŵŽŶƐƚƌĂƚĞŝŶĐƌĞĂƐĞĚƚŝŵĞŽĨĐŽŶĐĞŶƚƌĂƚŝŽŶƚŚƌŽƵŐŚ ŚǇĚƌŽŐƌĂƉŚĂƚƚĞŶƵĂƚŝŽŶ;ŝĨƐŽ͕ƐŚŽǁƚŚĂƚƚŚĞŚǇĚƌĂƵůŝĐƌĞƐŝĚĞŶĐĞƚŝŵĞƉƌŽǀŝĚĞĚŝŶDWĨŽƌĂϮͲǇĞĂƌƐƚŽƌŵĞǀĞŶƚŝƐĞƋƵĂůŽƌŐƌĞĂƚĞƌ ƚŚĂŶƚŚĞĂĚĚŝƚŝŽŶƚŝŵĞŽĨĐŽŶĐĞŶƚƌĂƚŝŽŶƌĞƋƵŝƌĞŵĞŶƚŝŶ&Žƌŵϰ͘ϮͲϰ/ƚĞŵϭϱͿ x /ŶĐƌĞĂƐĞƚŝŵĞŽĨĐŽŶĐĞŶƚƌĂƚŝŽŶďǇƉƌĞƐĞƌǀŝŶŐƉƌĞͲĚĞǀĞůŽƉĞĚĨůŽǁƉĂƚŚĂŶĚͬŽƌŝŶĐƌĞĂƐĞƚƌĂǀĞůƚŝŵĞďǇƌĞĚƵĐŝŶŐƐůŽƉĞ ĂŶĚŝŶĐƌĞĂƐŝŶŐĐƌŽƐƐͲƐĞĐƚŝŽŶĂůĂƌĞĂĂŶĚƌŽƵŐŚŶĞƐƐĨŽƌƉƌŽƉŽƐĞĚŽŶͲƐŝƚĞĐŽŶǀĞǇĂŶĐĞĨĂĐŝůŝƚŝĞƐ x /ŶĐŽƌƉŽƌĂƚĞĂƉƉƌŽƉƌŝĂƚĞŝŶͲƐƚƌĞĂŵĐŽŶƚƌŽůƐĨŽƌĚŽǁŶƐƚƌĞĂŵǁĂƚĞƌďŽĚǇƐĞŐŵĞŶƚƚŽƉƌĞǀĞŶƚŝŵƉĂĐƚƐĚƵĞƚŽ ŚǇĚƌŽŵŽĚŝĨŝĐĂƚŝŽŶ͕ŝŶĂƉůĂŶĂƉƉƌŽǀĞĚĂŶĚƐŝŐŶĞĚďǇĂůŝĐĞŶƐĞĚĞŶŐŝŶĞĞƌŝŶƚŚĞ^ƚĂƚĞŽĨĂůŝĨŽƌŶŝĂ ϳ&Žƌŵϰ͘ϮͲϮ/ƚĞŵϭϮůĞƐƐƚŚĂŶŽƌĞƋƵĂůƚŽϱй͗zĞƐ EŽ /ĨǇĞƐ͕,KƉĞƌĨŽƌŵĂŶĐĞĐƌŝƚĞƌŝĂŝƐĂĐŚŝĞǀĞĚ͘/ĨŶŽ͕ƐĞůĞĐƚŽŶĞŽƌŵŽƌĞŵŝƚŝŐĂƚŝŽŶŽƉƚŝŽŶƐďĞůŽǁ͗ x ĞŵŽŶƐƚƌĂƚĞƌĞĚƵĐƚŝŽŶŝŶƉĞĂŬƌƵŶŽĨĨĂĐŚŝĞǀĞĚďǇƉƌŽƉŽƐĞĚ>/ƐŝƚĞĚĞƐŝŐŶ͕>/DWƐ͕ĂŶĚĂĚĚŝƚŝŽŶĂůŽŶͲƐŝƚĞŽƌŽĨĨͲ ƐŝƚĞƌĞƚĞŶƚŝŽŶDWƐ DWƐƵƉƐƚƌĞĂŵŽĨĂǁĂƚĞƌďŽĚǇƐĞŐŵĞŶƚǁŝƚŚĂƉŽƚĞŶƚŝĂů,KŵĂǇďĞƵƐĞĚƚŽĚĞŵŽŶƐƚƌĂƚĞĂĚĚŝƚŝŽŶĂůƉĞĂŬƌƵŶŽĨĨƌĞĚƵĐƚŝŽŶ ƚŚƌŽƵŐŚŚǇĚƌŽŐƌĂƉŚĂƚƚĞŶƵĂƚŝŽŶ;ŝĨƐŽ͕ĂƚƚĂĐŚƚŽƚŚŝƐtYDW͕ĂŚǇĚƌŽŐƌĂƉŚĂŶĂůǇƐŝƐƐŚŽǁŝŶŐŚŽǁƚŚĞƉĞĂŬƌƵŶŽĨĨǁŽƵůĚďĞƌĞĚƵĐĞĚ ĚƵƌŝŶŐĂϮͲǇƌƐƚŽƌŵĞǀĞŶƚͿ x /ŶĐŽƌƉŽƌĂƚĞĂƉƉƌŽƉƌŝĂƚĞŝŶͲƐƚƌĞĂŵĐŽŶƚƌŽůƐĨŽƌĚŽǁŶƐƚƌĞĂŵǁĂƚĞƌďŽĚǇƐĞŐŵĞŶƚƚŽƉƌĞǀĞŶƚŝŵƉĂĐƚƐĚƵĞƚŽ ŚǇĚƌŽŵŽĚŝĨŝĐĂƚŝŽŶ͕ŝŶĂƉůĂŶĂƉƉƌŽǀĞĚĂŶĚƐŝŐŶĞĚďǇĂůŝĐĞŶƐĞĚĞŶŐŝŶĞĞƌŝŶƚŚĞ^ƚĂƚĞŽĨĂůŝĨŽƌŶŝĂ Ϭ͘ϬϬ ϮKŶͲƐŝƚĞƌĞƚĞŶƚŝŽŶǁŝƚŚƐŝƚĞĚĞƐŝŐŶŚǇĚƌŽůŽŐŝĐƐŽƵƌĐĞĐŽŶƚƌŽů͕ŝŶĨŝůƚƌĂƚŝŽŶ͕ĂŶĚ ^ƵŵŽĨ&Žƌŵϰ͘ϯͲϵ/ƚĞŵƐϮ͕ϯ͕ĂŶĚϰ ǀĂůƵĂƚĞŽƉƚŝŽŶƚŽŝŶĐƌĞĂƐĞŝŵƉůĞŵĞŶƚĂƚŝŽŶŽĨŽŶͲƐŝƚĞƌĞƚĞŶƚŝŽŶŝŶ&ŽƌŵƐϰ͘ϯͲϮ͕ϰ͘ϯͲϯ͕ ĂŶĚϰ͘ϯͲϰŝŶĞǆĐĞƐƐŽĨ>/sƚŽǁĂƌĚĂĐŚŝĞǀŝŶŐ,KǀŽůƵŵĞƌĞĚƵĐƚŝŽŶ Ϭ͘ϬϬ ŚĂƌǀĞƐƚĂŶĚƵƐĞ>/DW;ĨƚϯͿ͗5363.66 tĂƚĞƌYƵĂůŝƚǇDĂŶĂŐĞŵĞŶƚWůĂŶ;tYDWͿ ϰͲϮϱ͘ϭ &Žƌŵϰ͘ϯͲϭϬ,ǇĚƌŽŵŽĚŝĨŝĐĂƚŝŽŶŽŶƚƌŽůDWƐ;η4Ϳ ϭsŽůƵŵĞƌĞĚƵĐƚŝŽŶŶĞĞĚĞĚĨŽƌ,K ƉĞƌĨŽƌŵĂŶĐĞĐƌŝƚĞƌŝĂ;ĨƚϯͿ͗ ;&Žƌŵϰ͘ϮͲϮ/ƚĞŵϰΎϬ͘ϵϱͿʹ&Žƌŵϰ͘ϮͲϮ/ƚĞŵϭ ϯZĞŵĂŝŶŝŶŐǀŽůƵŵĞĨŽƌ,K ǀŽůƵŵĞĐĂƉƚƵƌĞ;ĨƚϯͿ͗/ƚĞŵϭʹ /ƚĞŵϮ ϰsŽůƵŵĞĐĂƉƚƵƌĞƉƌŽǀŝĚĞĚďǇŝŶĐŽƌƉŽƌĂƚŝŶŐĂĚĚŝƚŝŽŶĂůŽŶͲƐŝƚĞŽƌŽĨĨͲƐŝƚĞƌĞƚĞŶƚŝŽŶDWƐ ;ĨƚϯͿ͗ǆŝƐƚŝŶŐĚŽǁŶƐƚƌĞĂŵDWŵĂǇďĞƵƐĞĚƚŽĚĞŵŽŶƐƚƌĂƚĞĂĚĚŝƚŝŽŶĂůǀŽůƵŵĞĐĂƉƚƵƌĞ;ŝĨ ƐŽ͕ĂƚƚĂĐŚƚŽƚŚŝƐtYDWĂŚǇĚƌŽůŽŐŝĐĂŶĂůǇƐŝƐƐŚŽǁŝŶŐŚŽǁƚŚĞĂĚĚŝƚŝŽŶĂůǀŽůƵŵĞǁŽƵůĚďĞƌĞƚĂŝŶĞĚ ĚƵƌŝŶŐĂϮͲǇƌƐƚŽƌŵĞǀĞŶƚĨŽƌƚŚĞƌĞŐŝŽŶĂůǁĂƚĞƌƐŚĞĚͿ ϱ/Ĩ/ƚĞŵϰŝƐůĞƐƐƚŚĂŶ/ƚĞŵϯ͕ŝŶĐŽƌƉŽƌĂƚĞŝŶͲƐƚƌĞĂŵĐŽŶƚƌŽůƐŽŶĚŽǁŶƐƚƌĞĂŵǁĂƚĞƌďŽĚǇƐĞŐŵĞŶƚƚŽƉƌĞǀĞŶƚŝŵƉĂĐƚƐĚƵĞƚŽ ŚǇĚƌŽŵŽĚŝĨŝĐĂƚŝŽŶƚƚĂĐŚŝŶͲƐƚƌĞĂŵĐŽŶƚƌŽůDWƐĞůĞĐƚŝŽŶĂŶĚĞǀĂůƵĂƚŝŽŶƚŽƚŚŝƐtYDW ϲ/Ɛ&Žƌŵϰ͘ϮͲϮ/ƚĞŵϭϭůĞƐƐƚŚĂŶŽƌĞƋƵĂůƚŽϱй͗zĞƐEŽ /ĨǇĞƐ͕,KƉĞƌĨŽƌŵĂŶĐĞĐƌŝƚĞƌŝĂŝƐĂĐŚŝĞǀĞĚ͘/ĨŶŽ͕ƐĞůĞĐƚŽŶĞŽƌŵŽƌĞŵŝƚŝŐĂƚŝŽŶŽƉƚŝŽŶƐďĞůŽǁ͗ x ĞŵŽŶƐƚƌĂƚĞŝŶĐƌĞĂƐĞŝŶƚŝŵĞŽĨĐŽŶĐĞŶƚƌĂƚŝŽŶĂĐŚŝĞǀĞĚďǇƉƌŽƉŽƐĞĚ>/ƐŝƚĞĚĞƐŝŐŶ͕>/DW͕ĂŶĚĂĚĚŝƚŝŽŶĂůŽŶͲƐŝƚĞ ŽƌŽĨĨͲƐŝƚĞƌĞƚĞŶƚŝŽŶDW DWƵƉƐƚƌĞĂŵŽĨĂǁĂƚĞƌďŽĚǇƐĞŐŵĞŶƚǁŝƚŚĂƉŽƚĞŶƚŝĂů,KŵĂǇďĞƵƐĞĚƚŽĚĞŵŽŶƐƚƌĂƚĞŝŶĐƌĞĂƐĞĚƚŝŵĞŽĨĐŽŶĐĞŶƚƌĂƚŝŽŶƚŚƌŽƵŐŚ ŚǇĚƌŽŐƌĂƉŚĂƚƚĞŶƵĂƚŝŽŶ;ŝĨƐŽ͕ƐŚŽǁƚŚĂƚƚŚĞŚǇĚƌĂƵůŝĐƌĞƐŝĚĞŶĐĞƚŝŵĞƉƌŽǀŝĚĞĚŝŶDWĨŽƌĂϮͲǇĞĂƌƐƚŽƌŵĞǀĞŶƚŝƐĞƋƵĂůŽƌŐƌĞĂƚĞƌ ƚŚĂŶƚŚĞĂĚĚŝƚŝŽŶƚŝŵĞŽĨĐŽŶĐĞŶƚƌĂƚŝŽŶƌĞƋƵŝƌĞŵĞŶƚŝŶ&Žƌŵϰ͘ϮͲϰ/ƚĞŵϭϱͿ x /ŶĐƌĞĂƐĞƚŝŵĞŽĨĐŽŶĐĞŶƚƌĂƚŝŽŶďǇƉƌĞƐĞƌǀŝŶŐƉƌĞͲĚĞǀĞůŽƉĞĚĨůŽǁƉĂƚŚĂŶĚͬŽƌŝŶĐƌĞĂƐĞƚƌĂǀĞůƚŝŵĞďǇƌĞĚƵĐŝŶŐƐůŽƉĞ ĂŶĚŝŶĐƌĞĂƐŝŶŐĐƌŽƐƐͲƐĞĐƚŝŽŶĂůĂƌĞĂĂŶĚƌŽƵŐŚŶĞƐƐĨŽƌƉƌŽƉŽƐĞĚŽŶͲƐŝƚĞĐŽŶǀĞǇĂŶĐĞĨĂĐŝůŝƚŝĞƐ x /ŶĐŽƌƉŽƌĂƚĞĂƉƉƌŽƉƌŝĂƚĞŝŶͲƐƚƌĞĂŵĐŽŶƚƌŽůƐĨŽƌĚŽǁŶƐƚƌĞĂŵǁĂƚĞƌďŽĚǇƐĞŐŵĞŶƚƚŽƉƌĞǀĞŶƚŝŵƉĂĐƚƐĚƵĞƚŽ ŚǇĚƌŽŵŽĚŝĨŝĐĂƚŝŽŶ͕ŝŶĂƉůĂŶĂƉƉƌŽǀĞĚĂŶĚƐŝŐŶĞĚďǇĂůŝĐĞŶƐĞĚĞŶŐŝŶĞĞƌŝŶƚŚĞ^ƚĂƚĞŽĨĂůŝĨŽƌŶŝĂ ϳ&Žƌŵϰ͘ϮͲϮ/ƚĞŵϭϮůĞƐƐƚŚĂŶŽƌĞƋƵĂůƚŽϱй͗zĞƐ EŽ /ĨǇĞƐ͕,KƉĞƌĨŽƌŵĂŶĐĞĐƌŝƚĞƌŝĂŝƐĂĐŚŝĞǀĞĚ͘/ĨŶŽ͕ƐĞůĞĐƚŽŶĞŽƌŵŽƌĞŵŝƚŝŐĂƚŝŽŶŽƉƚŝŽŶƐďĞůŽǁ͗ x ĞŵŽŶƐƚƌĂƚĞƌĞĚƵĐƚŝŽŶŝŶƉĞĂŬƌƵŶŽĨĨĂĐŚŝĞǀĞĚďǇƉƌŽƉŽƐĞĚ>/ƐŝƚĞĚĞƐŝŐŶ͕>/DWƐ͕ĂŶĚĂĚĚŝƚŝŽŶĂůŽŶͲƐŝƚĞŽƌŽĨĨͲ ƐŝƚĞƌĞƚĞŶƚŝŽŶDWƐ DWƐƵƉƐƚƌĞĂŵŽĨĂǁĂƚĞƌďŽĚǇƐĞŐŵĞŶƚǁŝƚŚĂƉŽƚĞŶƚŝĂů,KŵĂǇďĞƵƐĞĚƚŽĚĞŵŽŶƐƚƌĂƚĞĂĚĚŝƚŝŽŶĂůƉĞĂŬƌƵŶŽĨĨƌĞĚƵĐƚŝŽŶ ƚŚƌŽƵŐŚŚǇĚƌŽŐƌĂƉŚĂƚƚĞŶƵĂƚŝŽŶ;ŝĨƐŽ͕ĂƚƚĂĐŚƚŽƚŚŝƐtYDW͕ĂŚǇĚƌŽŐƌĂƉŚĂŶĂůǇƐŝƐƐŚŽǁŝŶŐŚŽǁƚŚĞƉĞĂŬƌƵŶŽĨĨǁŽƵůĚďĞƌĞĚƵĐĞĚ ĚƵƌŝŶŐĂϮͲǇƌƐƚŽƌŵĞǀĞŶƚͿ x /ŶĐŽƌƉŽƌĂƚĞĂƉƉƌŽƉƌŝĂƚĞŝŶͲƐƚƌĞĂŵĐŽŶƚƌŽůƐĨŽƌĚŽǁŶƐƚƌĞĂŵǁĂƚĞƌďŽĚǇƐĞŐŵĞŶƚƚŽƉƌĞǀĞŶƚŝŵƉĂĐƚƐĚƵĞƚŽ ŚǇĚƌŽŵŽĚŝĨŝĐĂƚŝŽŶ͕ŝŶĂƉůĂŶĂƉƉƌŽǀĞĚĂŶĚƐŝŐŶĞĚďǇĂůŝĐĞŶƐĞĚĞŶŐŝŶĞĞƌŝŶƚŚĞ^ƚĂƚĞŽĨĂůŝĨŽƌŶŝĂ Ϭ͘ϬϬ ϮKŶͲƐŝƚĞƌĞƚĞŶƚŝŽŶǁŝƚŚƐŝƚĞĚĞƐŝŐŶŚǇĚƌŽůŽŐŝĐƐŽƵƌĐĞĐŽŶƚƌŽů͕ŝŶĨŝůƚƌĂƚŝŽŶ͕ĂŶĚ ^ƵŵŽĨ&Žƌŵϰ͘ϯͲϵ/ƚĞŵƐϮ͕ϯ͕ĂŶĚϰ ǀĂůƵĂƚĞŽƉƚŝŽŶƚŽŝŶĐƌĞĂƐĞŝŵƉůĞŵĞŶƚĂƚŝŽŶŽĨŽŶͲƐŝƚĞƌĞƚĞŶƚŝŽŶŝŶ&ŽƌŵƐϰ͘ϯͲϮ͕ϰ͘ϯͲϯ͕ ĂŶĚϰ͘ϯͲϰŝŶĞǆĐĞƐƐŽĨ>/sƚŽǁĂƌĚĂĐŚŝĞǀŝŶŐ,KǀŽůƵŵĞƌĞĚƵĐƚŝŽŶ Ϭ͘ϬϬ ŚĂƌǀĞƐƚĂŶĚƵƐĞ>/DW;ĨƚϯͿ͗13160.53 tĂƚĞƌYƵĂůŝƚǇDĂŶĂŐĞŵĞŶƚWůĂŶ;tYDWͿ ϰͲϮϱ͘ϭ &Žƌŵϰ͘ϯͲϭϬ,ǇĚƌŽŵŽĚŝĨŝĐĂƚŝŽŶŽŶƚƌŽůDWƐ;η5Ϳ ϭsŽůƵŵĞƌĞĚƵĐƚŝŽŶŶĞĞĚĞĚĨŽƌ,K ƉĞƌĨŽƌŵĂŶĐĞĐƌŝƚĞƌŝĂ;ĨƚϯͿ͗ ;&Žƌŵϰ͘ϮͲϮ/ƚĞŵϰΎϬ͘ϵϱͿʹ&Žƌŵϰ͘ϮͲϮ/ƚĞŵϭ ϯZĞŵĂŝŶŝŶŐǀŽůƵŵĞĨŽƌ,K ǀŽůƵŵĞĐĂƉƚƵƌĞ;ĨƚϯͿ͗ /ƚĞŵϭʹ /ƚĞŵϮ ϰsŽůƵŵĞĐĂƉƚƵƌĞƉƌŽǀŝĚĞĚďǇŝŶĐŽƌƉŽƌĂƚŝŶŐĂĚĚŝƚŝŽŶĂůŽŶͲƐŝƚĞŽƌŽĨĨͲƐŝƚĞƌĞƚĞŶƚŝŽŶDWƐ ;ĨƚϯͿ͗ ǆŝƐƚŝŶŐĚŽǁŶƐƚƌĞĂŵDWŵĂǇďĞƵƐĞĚƚŽĚĞŵŽŶƐƚƌĂƚĞĂĚĚŝƚŝŽŶĂůǀŽůƵŵĞĐĂƉƚƵƌĞ;ŝĨ ƐŽ͕ĂƚƚĂĐŚƚŽƚŚŝƐtYDWĂŚǇĚƌŽůŽŐŝĐĂŶĂůǇƐŝƐƐŚŽǁŝŶŐŚŽǁƚŚĞĂĚĚŝƚŝŽŶĂůǀŽůƵŵĞǁŽƵůĚďĞƌĞƚĂŝŶĞĚ ĚƵƌŝŶŐĂϮͲǇƌƐƚŽƌŵĞǀĞŶƚĨŽƌƚŚĞƌĞŐŝŽŶĂůǁĂƚĞƌƐŚĞĚͿ ϱ/Ĩ/ƚĞŵϰŝƐůĞƐƐƚŚĂŶ/ƚĞŵϯ͕ŝŶĐŽƌƉŽƌĂƚĞŝŶͲƐƚƌĞĂŵĐŽŶƚƌŽůƐŽŶĚŽǁŶƐƚƌĞĂŵǁĂƚĞƌďŽĚǇƐĞŐŵĞŶƚƚŽƉƌĞǀĞŶƚŝŵƉĂĐƚƐĚƵĞƚŽ ŚǇĚƌŽŵŽĚŝĨŝĐĂƚŝŽŶƚƚĂĐŚŝŶͲƐƚƌĞĂŵĐŽŶƚƌŽůDWƐĞůĞĐƚŝŽŶĂŶĚĞǀĂůƵĂƚŝŽŶƚŽƚŚŝƐtYDW ϲ/Ɛ&Žƌŵϰ͘ϮͲϮ/ƚĞŵϭϭůĞƐƐƚŚĂŶŽƌĞƋƵĂůƚŽϱй͗zĞƐEŽ /ĨǇĞƐ͕,KƉĞƌĨŽƌŵĂŶĐĞĐƌŝƚĞƌŝĂŝƐĂĐŚŝĞǀĞĚ͘/ĨŶŽ͕ƐĞůĞĐƚŽŶĞŽƌŵŽƌĞŵŝƚŝŐĂƚŝŽŶŽƉƚŝŽŶƐďĞůŽǁ͗ x ĞŵŽŶƐƚƌĂƚĞŝŶĐƌĞĂƐĞŝŶƚŝŵĞŽĨĐŽŶĐĞŶƚƌĂƚŝŽŶĂĐŚŝĞǀĞĚďǇƉƌŽƉŽƐĞĚ>/ƐŝƚĞĚĞƐŝŐŶ͕>/DW͕ĂŶĚĂĚĚŝƚŝŽŶĂůŽŶͲƐŝƚĞ ŽƌŽĨĨͲƐŝƚĞƌĞƚĞŶƚŝŽŶDW DWƵƉƐƚƌĞĂŵŽĨĂǁĂƚĞƌďŽĚǇƐĞŐŵĞŶƚǁŝƚŚĂƉŽƚĞŶƚŝĂů,KŵĂǇďĞƵƐĞĚƚŽĚĞŵŽŶƐƚƌĂƚĞŝŶĐƌĞĂƐĞĚƚŝŵĞŽĨĐŽŶĐĞŶƚƌĂƚŝŽŶƚŚƌŽƵŐŚ ŚǇĚƌŽŐƌĂƉŚĂƚƚĞŶƵĂƚŝŽŶ;ŝĨƐŽ͕ƐŚŽǁƚŚĂƚƚŚĞŚǇĚƌĂƵůŝĐƌĞƐŝĚĞŶĐĞƚŝŵĞƉƌŽǀŝĚĞĚŝŶDWĨŽƌĂϮͲǇĞĂƌƐƚŽƌŵĞǀĞŶƚŝƐĞƋƵĂůŽƌŐƌĞĂƚĞƌ ƚŚĂŶƚŚĞĂĚĚŝƚŝŽŶƚŝŵĞŽĨĐŽŶĐĞŶƚƌĂƚŝŽŶƌĞƋƵŝƌĞŵĞŶƚŝŶ&Žƌŵϰ͘ϮͲϰ/ƚĞŵϭϱͿ x /ŶĐƌĞĂƐĞƚŝŵĞŽĨĐŽŶĐĞŶƚƌĂƚŝŽŶďǇƉƌĞƐĞƌǀŝŶŐƉƌĞͲĚĞǀĞůŽƉĞĚĨůŽǁƉĂƚŚĂŶĚͬŽƌŝŶĐƌĞĂƐĞƚƌĂǀĞůƚŝŵĞďǇƌĞĚƵĐŝŶŐƐůŽƉĞ ĂŶĚŝŶĐƌĞĂƐŝŶŐĐƌŽƐƐͲƐĞĐƚŝŽŶĂůĂƌĞĂĂŶĚƌŽƵŐŚŶĞƐƐĨŽƌƉƌŽƉŽƐĞĚŽŶͲƐŝƚĞĐŽŶǀĞǇĂŶĐĞĨĂĐŝůŝƚŝĞƐ x /ŶĐŽƌƉŽƌĂƚĞĂƉƉƌŽƉƌŝĂƚĞŝŶͲƐƚƌĞĂŵĐŽŶƚƌŽůƐĨŽƌĚŽǁŶƐƚƌĞĂŵǁĂƚĞƌďŽĚǇƐĞŐŵĞŶƚƚŽƉƌĞǀĞŶƚŝŵƉĂĐƚƐĚƵĞƚŽ ŚǇĚƌŽŵŽĚŝĨŝĐĂƚŝŽŶ͕ŝŶĂƉůĂŶĂƉƉƌŽǀĞĚĂŶĚƐŝŐŶĞĚďǇĂůŝĐĞŶƐĞĚĞŶŐŝŶĞĞƌŝŶƚŚĞ^ƚĂƚĞŽĨĂůŝĨŽƌŶŝĂ ϳ&Žƌŵϰ͘ϮͲϮ/ƚĞŵϭϮůĞƐƐƚŚĂŶŽƌĞƋƵĂůƚŽϱй͗zĞƐ EŽ /ĨǇĞƐ͕,KƉĞƌĨŽƌŵĂŶĐĞĐƌŝƚĞƌŝĂŝƐĂĐŚŝĞǀĞĚ͘/ĨŶŽ͕ƐĞůĞĐƚŽŶĞŽƌŵŽƌĞŵŝƚŝŐĂƚŝŽŶŽƉƚŝŽŶƐďĞůŽǁ͗ x ĞŵŽŶƐƚƌĂƚĞƌĞĚƵĐƚŝŽŶŝŶƉĞĂŬƌƵŶŽĨĨĂĐŚŝĞǀĞĚďǇƉƌŽƉŽƐĞĚ>/ƐŝƚĞĚĞƐŝŐŶ͕>/DWƐ͕ĂŶĚĂĚĚŝƚŝŽŶĂůŽŶͲƐŝƚĞŽƌŽĨĨͲ ƐŝƚĞƌĞƚĞŶƚŝŽŶDWƐ DWƐƵƉƐƚƌĞĂŵŽĨĂǁĂƚĞƌďŽĚǇƐĞŐŵĞŶƚǁŝƚŚĂƉŽƚĞŶƚŝĂů,KŵĂǇďĞƵƐĞĚƚŽĚĞŵŽŶƐƚƌĂƚĞĂĚĚŝƚŝŽŶĂůƉĞĂŬƌƵŶŽĨĨƌĞĚƵĐƚŝŽŶ ƚŚƌŽƵŐŚŚǇĚƌŽŐƌĂƉŚĂƚƚĞŶƵĂƚŝŽŶ;ŝĨƐŽ͕ĂƚƚĂĐŚƚŽƚŚŝƐtYDW͕ĂŚǇĚƌŽŐƌĂƉŚĂŶĂůǇƐŝƐƐŚŽǁŝŶŐŚŽǁƚŚĞƉĞĂŬƌƵŶŽĨĨǁŽƵůĚďĞƌĞĚƵĐĞĚ ĚƵƌŝŶŐĂϮͲǇƌƐƚŽƌŵĞǀĞŶƚͿ x /ŶĐŽƌƉŽƌĂƚĞĂƉƉƌŽƉƌŝĂƚĞŝŶͲƐƚƌĞĂŵĐŽŶƚƌŽůƐĨŽƌĚŽǁŶƐƚƌĞĂŵǁĂƚĞƌďŽĚǇƐĞŐŵĞŶƚƚŽƉƌĞǀĞŶƚŝŵƉĂĐƚƐĚƵĞƚŽ ŚǇĚƌŽŵŽĚŝĨŝĐĂƚŝŽŶ͕ŝŶĂƉůĂŶĂƉƉƌŽǀĞĚĂŶĚƐŝŐŶĞĚďǇĂůŝĐĞŶƐĞĚĞŶŐŝŶĞĞƌŝŶƚŚĞ^ƚĂƚĞŽĨĂůŝĨŽƌŶŝĂ Ϭ͘ϬϬ ϮKŶͲƐŝƚĞƌĞƚĞŶƚŝŽŶǁŝƚŚƐŝƚĞĚĞƐŝŐŶŚǇĚƌŽůŽŐŝĐƐŽƵƌĐĞĐŽŶƚƌŽů͕ŝŶĨŝůƚƌĂƚŝŽŶ͕ĂŶĚ ^ƵŵŽĨ&Žƌŵϰ͘ϯͲϵ/ƚĞŵƐϮ͕ϯ͕ĂŶĚϰ ǀĂůƵĂƚĞŽƉƚŝŽŶƚŽŝŶĐƌĞĂƐĞŝŵƉůĞŵĞŶƚĂƚŝŽŶŽĨŽŶͲƐŝƚĞƌĞƚĞŶƚŝŽŶŝŶ&ŽƌŵƐϰ͘ϯͲϮ͕ϰ͘ϯͲϯ͕ ĂŶĚϰ͘ϯͲϰŝŶĞǆĐĞƐƐŽĨ>/sƚŽǁĂƌĚĂĐŚŝĞǀŝŶŐ,KǀŽůƵŵĞƌĞĚƵĐƚŝŽŶ Ϭ͘ϬϬ ŚĂƌǀĞƐƚĂŶĚƵƐĞ>/DW;ĨƚϯͿ͗1656.80 tĂƚĞƌYƵĂůŝƚǇDĂŶĂŐĞŵĞŶƚWůĂŶ;tYDWͿ ϰͲϮϱ͘ϭ &Žƌŵϰ͘ϯͲϭϬ,ǇĚƌŽŵŽĚŝĨŝĐĂƚŝŽŶŽŶƚƌŽůDWƐ;η6Ϳ ϭsŽůƵŵĞƌĞĚƵĐƚŝŽŶŶĞĞĚĞĚĨŽƌ,K ƉĞƌĨŽƌŵĂŶĐĞĐƌŝƚĞƌŝĂ;ĨƚϯͿ͗ ;&Žƌŵϰ͘ϮͲϮ/ƚĞŵϰΎϬ͘ϵϱͿʹ&Žƌŵϰ͘ϮͲϮ/ƚĞŵϭ ϯZĞŵĂŝŶŝŶŐǀŽůƵŵĞĨŽƌ,K ǀŽůƵŵĞĐĂƉƚƵƌĞ;ĨƚϯͿ͗/ƚĞŵϭʹ /ƚĞŵϮ ϰsŽůƵŵĞĐĂƉƚƵƌĞƉƌŽǀŝĚĞĚďǇŝŶĐŽƌƉŽƌĂƚŝŶŐĂĚĚŝƚŝŽŶĂůŽŶͲƐŝƚĞŽƌŽĨĨͲƐŝƚĞƌĞƚĞŶƚŝŽŶDWƐ ;ĨƚϯͿ͗ǆŝƐƚŝŶŐĚŽǁŶƐƚƌĞĂŵDWŵĂǇďĞƵƐĞĚƚŽĚĞŵŽŶƐƚƌĂƚĞĂĚĚŝƚŝŽŶĂůǀŽůƵŵĞĐĂƉƚƵƌĞ;ŝĨ ƐŽ͕ĂƚƚĂĐŚƚŽƚŚŝƐtYDWĂŚǇĚƌŽůŽŐŝĐĂŶĂůǇƐŝƐƐŚŽǁŝŶŐŚŽǁƚŚĞĂĚĚŝƚŝŽŶĂůǀŽůƵŵĞǁŽƵůĚďĞƌĞƚĂŝŶĞĚ ĚƵƌŝŶŐĂϮͲǇƌƐƚŽƌŵĞǀĞŶƚĨŽƌƚŚĞƌĞŐŝŽŶĂůǁĂƚĞƌƐŚĞĚͿ ϱ/Ĩ/ƚĞŵϰŝƐůĞƐƐƚŚĂŶ/ƚĞŵϯ͕ŝŶĐŽƌƉŽƌĂƚĞŝŶͲƐƚƌĞĂŵĐŽŶƚƌŽůƐŽŶĚŽǁŶƐƚƌĞĂŵǁĂƚĞƌďŽĚǇƐĞŐŵĞŶƚƚŽƉƌĞǀĞŶƚŝŵƉĂĐƚƐĚƵĞƚŽ ŚǇĚƌŽŵŽĚŝĨŝĐĂƚŝŽŶƚƚĂĐŚŝŶͲƐƚƌĞĂŵĐŽŶƚƌŽůDWƐĞůĞĐƚŝŽŶĂŶĚĞǀĂůƵĂƚŝŽŶƚŽƚŚŝƐtYDW ϲ/Ɛ&Žƌŵϰ͘ϮͲϮ/ƚĞŵϭϭůĞƐƐƚŚĂŶŽƌĞƋƵĂůƚŽϱй͗zĞƐEŽ /ĨǇĞƐ͕,KƉĞƌĨŽƌŵĂŶĐĞĐƌŝƚĞƌŝĂŝƐĂĐŚŝĞǀĞĚ͘/ĨŶŽ͕ƐĞůĞĐƚŽŶĞŽƌŵŽƌĞŵŝƚŝŐĂƚŝŽŶŽƉƚŝŽŶƐďĞůŽǁ͗ x ĞŵŽŶƐƚƌĂƚĞŝŶĐƌĞĂƐĞŝŶƚŝŵĞŽĨĐŽŶĐĞŶƚƌĂƚŝŽŶĂĐŚŝĞǀĞĚďǇƉƌŽƉŽƐĞĚ>/ƐŝƚĞĚĞƐŝŐŶ͕>/DW͕ĂŶĚĂĚĚŝƚŝŽŶĂůŽŶͲƐŝƚĞ ŽƌŽĨĨͲƐŝƚĞƌĞƚĞŶƚŝŽŶDW DWƵƉƐƚƌĞĂŵŽĨĂǁĂƚĞƌďŽĚǇƐĞŐŵĞŶƚǁŝƚŚĂƉŽƚĞŶƚŝĂů,KŵĂǇďĞƵƐĞĚƚŽĚĞŵŽŶƐƚƌĂƚĞŝŶĐƌĞĂƐĞĚƚŝŵĞŽĨĐŽŶĐĞŶƚƌĂƚŝŽŶƚŚƌŽƵŐŚ ŚǇĚƌŽŐƌĂƉŚĂƚƚĞŶƵĂƚŝŽŶ;ŝĨƐŽ͕ƐŚŽǁƚŚĂƚƚŚĞŚǇĚƌĂƵůŝĐƌĞƐŝĚĞŶĐĞƚŝŵĞƉƌŽǀŝĚĞĚŝŶDWĨŽƌĂϮͲǇĞĂƌƐƚŽƌŵĞǀĞŶƚŝƐĞƋƵĂůŽƌŐƌĞĂƚĞƌ ƚŚĂŶƚŚĞĂĚĚŝƚŝŽŶƚŝŵĞŽĨĐŽŶĐĞŶƚƌĂƚŝŽŶƌĞƋƵŝƌĞŵĞŶƚŝŶ&Žƌŵϰ͘ϮͲϰ/ƚĞŵϭϱͿ x /ŶĐƌĞĂƐĞƚŝŵĞŽĨĐŽŶĐĞŶƚƌĂƚŝŽŶďǇƉƌĞƐĞƌǀŝŶŐƉƌĞͲĚĞǀĞůŽƉĞĚĨůŽǁƉĂƚŚĂŶĚͬŽƌŝŶĐƌĞĂƐĞƚƌĂǀĞůƚŝŵĞďǇƌĞĚƵĐŝŶŐƐůŽƉĞ ĂŶĚŝŶĐƌĞĂƐŝŶŐĐƌŽƐƐͲƐĞĐƚŝŽŶĂůĂƌĞĂĂŶĚƌŽƵŐŚŶĞƐƐĨŽƌƉƌŽƉŽƐĞĚŽŶͲƐŝƚĞĐŽŶǀĞǇĂŶĐĞĨĂĐŝůŝƚŝĞƐ x /ŶĐŽƌƉŽƌĂƚĞĂƉƉƌŽƉƌŝĂƚĞŝŶͲƐƚƌĞĂŵĐŽŶƚƌŽůƐĨŽƌĚŽǁŶƐƚƌĞĂŵǁĂƚĞƌďŽĚǇƐĞŐŵĞŶƚƚŽƉƌĞǀĞŶƚŝŵƉĂĐƚƐĚƵĞƚŽ ŚǇĚƌŽŵŽĚŝĨŝĐĂƚŝŽŶ͕ŝŶĂƉůĂŶĂƉƉƌŽǀĞĚĂŶĚƐŝŐŶĞĚďǇĂůŝĐĞŶƐĞĚĞŶŐŝŶĞĞƌŝŶƚŚĞ^ƚĂƚĞŽĨĂůŝĨŽƌŶŝĂ ϳ&Žƌŵϰ͘ϮͲϮ/ƚĞŵϭϮůĞƐƐƚŚĂŶŽƌĞƋƵĂůƚŽϱй͗zĞƐ EŽ /ĨǇĞƐ͕,KƉĞƌĨŽƌŵĂŶĐĞĐƌŝƚĞƌŝĂŝƐĂĐŚŝĞǀĞĚ͘/ĨŶŽ͕ƐĞůĞĐƚŽŶĞŽƌŵŽƌĞŵŝƚŝŐĂƚŝŽŶŽƉƚŝŽŶƐďĞůŽǁ͗ x ĞŵŽŶƐƚƌĂƚĞƌĞĚƵĐƚŝŽŶŝŶƉĞĂŬƌƵŶŽĨĨĂĐŚŝĞǀĞĚďǇƉƌŽƉŽƐĞĚ>/ƐŝƚĞĚĞƐŝŐŶ͕>/DWƐ͕ĂŶĚĂĚĚŝƚŝŽŶĂůŽŶͲƐŝƚĞŽƌŽĨĨͲ ƐŝƚĞƌĞƚĞŶƚŝŽŶDWƐ DWƐƵƉƐƚƌĞĂŵŽĨĂǁĂƚĞƌďŽĚǇƐĞŐŵĞŶƚǁŝƚŚĂƉŽƚĞŶƚŝĂů,KŵĂǇďĞƵƐĞĚƚŽĚĞŵŽŶƐƚƌĂƚĞĂĚĚŝƚŝŽŶĂůƉĞĂŬƌƵŶŽĨĨƌĞĚƵĐƚŝŽŶ ƚŚƌŽƵŐŚŚǇĚƌŽŐƌĂƉŚĂƚƚĞŶƵĂƚŝŽŶ;ŝĨƐŽ͕ĂƚƚĂĐŚƚŽƚŚŝƐtYDW͕ĂŚǇĚƌŽŐƌĂƉŚĂŶĂůǇƐŝƐƐŚŽǁŝŶŐŚŽǁƚŚĞƉĞĂŬƌƵŶŽĨĨǁŽƵůĚďĞƌĞĚƵĐĞĚ ĚƵƌŝŶŐĂϮͲǇƌƐƚŽƌŵĞǀĞŶƚͿ x /ŶĐŽƌƉŽƌĂƚĞĂƉƉƌŽƉƌŝĂƚĞŝŶͲƐƚƌĞĂŵĐŽŶƚƌŽůƐĨŽƌĚŽǁŶƐƚƌĞĂŵǁĂƚĞƌďŽĚǇƐĞŐŵĞŶƚƚŽƉƌĞǀĞŶƚŝŵƉĂĐƚƐĚƵĞƚŽ ŚǇĚƌŽŵŽĚŝĨŝĐĂƚŝŽŶ͕ŝŶĂƉůĂŶĂƉƉƌŽǀĞĚĂŶĚƐŝŐŶĞĚďǇĂůŝĐĞŶƐĞĚĞŶŐŝŶĞĞƌŝŶƚŚĞ^ƚĂƚĞŽĨĂůŝĨŽƌŶŝĂ Ϭ͘ϬϬ ϮKŶͲƐŝƚĞƌĞƚĞŶƚŝŽŶǁŝƚŚƐŝƚĞĚĞƐŝŐŶŚǇĚƌŽůŽŐŝĐƐŽƵƌĐĞĐŽŶƚƌŽů͕ŝŶĨŝůƚƌĂƚŝŽŶ͕ĂŶĚ ^ƵŵŽĨ&Žƌŵϰ͘ϯͲϵ/ƚĞŵƐϮ͕ϯ͕ĂŶĚϰ ǀĂůƵĂƚĞŽƉƚŝŽŶƚŽŝŶĐƌĞĂƐĞŝŵƉůĞŵĞŶƚĂƚŝŽŶŽĨŽŶͲƐŝƚĞƌĞƚĞŶƚŝŽŶŝŶ&ŽƌŵƐϰ͘ϯͲϮ͕ϰ͘ϯͲϯ͕ ĂŶĚϰ͘ϯͲϰŝŶĞǆĐĞƐƐŽĨ>/sƚŽǁĂƌĚĂĐŚŝĞǀŝŶŐ,KǀŽůƵŵĞƌĞĚƵĐƚŝŽŶ Ϭ͘ϬϬ ŚĂƌǀĞƐƚĂŶĚƵƐĞ>/DW;ĨƚϯͿ͗7674.75 Water Quality Management Plan (WQMP) 4-26 4.4 Alternative Compliance Plan (if applicable) Describe an alternative compliance plan (if applicable) for projects not fully able to infiltrate, harvest and use, or biotreat the DCV via on-site LID practices. A project proponent must develop an alternative compliance plan to address the remainder of the LID DCV. Depending on project type some projects may qualify for water quality credits that can be applied to reduce the DCV that must be treated prior to development of an alternative compliance plan (see Form 2.4-1, Water Quality Credits). Form 4.3-9 Item 8 includes instructions on how to apply water quality credits when computing the DCV that must be met through alternative compliance. Alternative compliance plans may include one or more of the following elements: •On-site structural treatment control BMP - All treatment control BMP should be located as close to possible to the pollutant sources and should not be located within receiving waters; •Off-site structural treatment control BMP - Pollutant removal should occur prior to discharge of runoff to receiving waters; •Urban runoff fund or In-lieu program, if available Depending upon the proposed alternative compliance plan, approval by the executive officer may or may not be required (see Section 6 of the TGD for WQMP). Water Quality Management Plan (WQMP) 5-1 Section 5 Inspection and Maintenance Responsibility for Post Construction BMP All BMP included as part of the project WQMP are required to be maintained through regular scheduled inspection and maintenance (refer to Section 8, Post Construction BMP Requirements, in the TGD for WQMP). Fully complete Form 5-1 summarizing all BMP included in the WQMP. Attach additional forms as needed. The WQMP shall also include a detailed Operation and Maintenance Plan for all BMP and may require a Maintenance Agreement (consult the jurisdiction’s LIP). If a Maintenance Agreement is required, it must also be attached to the WQMP. OWNER - Fontana lodging LLC Form 5-1 BMP Inspection and Maintenance (use additional forms as necessary) BMP Reponsible Party(s) Inspection/ Maintenance Activities Required Minimum Frequency of Activities INFILTRA- TION BMP Owner as mentioned above. 1. Inspect flow entrances, ponding areas and surface areas. 2. Prune and remove dead vegetation as needed. 3. Inspect overflow device for obstructions, debris etc. 4. irrigate vegetation as needed during prolonged dry periods. ANNUALLY N1- EDUCATION FOR PROPERTY OWNER Owner as mentioned above. 1.Train employees janitorial staff to dispose of floor cleaning in sewer line, not into parking lot. 2.Discontinue all non-storm water discharges to the storm drain system. It is prohibited to discharge any chemicals, wastes or wastewater into the gutter, street or storm drain. 3.Store material safely. 4.Properly cleanup and dispose of material per San Bernardino County recycling and disposal information, 909.386.8401. Train staff once a year in January, and train new staff as hired. N2-ACTIVITY RESTRICTIONS Owner as mentioned above. As specified by owner.Throughout the life of project. Water Quality Management Plan (WQMP) N3 LANDSCAPE MAINTENANCE (BMP ID = SC-73) Owner as mentioned above 1.Keep landscaping materials away from street, gutter and storm drains. Stockpiles shall be covered with plastic sheeting. 2.Conserve water and prevent runoff. Periodically inspect, fix leaks. 3.Recycle yard waste. 4.Refer to Landscape Maintenance Handout provided in attachment below, SC-73. Practice throughout the life of project. N11 LITTER CONTROL (BMP ID = SC-60 ) Owner as mentioned above 1.Remove debris in a timely manner. 2.Establish a daily checklist of office, yard and plant areas to confirm cleanliness and adherence to proper storage and security. Specific employees should be assigned specific inspection responsibilities and given the authority to remedy the problem. 3.Dispose of wash water, sweeping, and sediment properly. 4.Train employees per N-1 listed above. 5.Refer to Housekeeping Practices (SC-60) Sweep and clean at the first of each month. N12 EMPLOYEE TRAINING Owner as mentioned above 1.Refer to N-1 listed above.Train staff once a year in January. N14 CATCH BASIN INSPECTION (BMP ID = SC-74) Owner as mentioned above 1.Immediate repair of anydeterioration threateningstructural integrity. 2.Cleaning before the sump is 40% full. 3.Keep accurate log of the number of catch basins cleaned and record amount of waste collected. 4.Store wastes collected from cleaning activities of the drainage system in appropriate containers or temporary storage sites in a Inspect in January and August, and before and after any rainfall events. 5-2 manner that prevents discharge to the storm drain system. 5.Cleaning equipment may be used such a vacuums.6.Clean up hot spots and storm drainage where illegal dumping and disposal occurs and development a system tracking that includes the following: illegal dumping hot spots, type and quantities, patterns in time of occurrence, mode of dumping andresponsible parties. 7.Refer to Drainage system Maintenance (SC-74) N15 VACUUM SWEEP PRIVATE STREETS AND PARKING LOTS (BMP ID = SC-43 & SC-70) Owner as mentioned above 1.Sweep, shovel and dispose of litter in trash. 2.Use dry cleaning methods to prevent discharge of pollutants. 3.If water is used; block the storm drain inlet and collect and pump the wash water to the sanitary sewer. 4.Dispose of parking lot sweeping debris and dirt at a landfill. 5.Clean oil spots with absorbent materials. 6.Train employees in proper maintenance activities per NS 1 above. 7.Refer to Parking Storage Area maintenance (SC-43) and Road & Street Maintenance (SC-70)provided in attachment. Sweep and clean parking lots prior to the wet season, and once in January and June. S-3 TRASH ENCLOSURE TO REDUCE POLLUTANT (BMP ID = SD-32) Owner as mentioned above 1.The integrity of structural elements that are subject to damage must be maintained and replaced if necessary. 2.Refer to Trash Storage Areas (SD-32) provided in attachment below. Inspect trash enclosures twice a year, once in January and in June. Replace parts as necessary. S4 & S13 USE EFFICIENT IRRIGATION SYSTEMS AND LANDSCAPE DESIGN (BMP ID = SC-12 & SD-10) Owner as mentioned above 1.Replanting shall match the original plant or be drought tolerant and eliminate the use of fertilizers or pesticides. 2.Refer to Efficient irrigation (SD-12); and Site Design And Landscape Planning (SD-10) provided below. Efficient irrigation should be used throughout life of the project. 5-3 Water Quality Management Plan (WQMP) 6-1 Section 6 WQMP Attachments 6.1. Site Plan and Drainage Plan Include a site plan and drainage plan sheet set containing the following minimum information: 6.2 Electronic Data Submittal Minimum requirements include submittal of PDF exhibits in addition to hard copies. Format must not require specialized software to open. If the local jurisdiction requires specialized electronic document formats (as described in their local Local Implementation Plan), this section will describe the contents (e.g., layering, nomenclature, geo-referencing, etc.) of these documents so that they may be interpreted efficiently and accurately. 6.3 Post Construction Attach all O&M Plans and Maintenance Agreements for BMP to the WQMP. 6.4 Other Supporting Documentation ▪BMP Educational Materials ▪Activity Restriction – C, C&R’s & Lease Agreements ▪Project location ▪Site boundary ▪Land uses and land covers, as applicable ▪Suitability/feasibility constraints ▪Structural Source Control BMP locations ▪Site Design Hydrologic Source Control BMP locations ▪LID BMP details ▪Drainage delineations and flow information ▪Drainage connections Phone: (909) 350-7640 Fax: (909) 350-7676 Name: Address: Phone: The Engineer below certifies that all WQMP BMP components have been installed and are fully functional according to the approved WQMP report. Engineer: Title: Company: Address: Email: Telephone: Signature: Date: BMP Locations: City of Fontana C A L I F O R N I A WQMP CERTIFICATION FOR BMP COMPLETION Project Data WQMP ID No: Grading Permit No(s): Building Permit No(s): Address: Tract/Parcel Map: WDID No.: BMP Types: 8353 Sierra Ave, Fontana, CA 92335 NWC CITRUS AND SOUTH HIGHLAND AVENUE N/A 0228-301-01 N/A N/AN/A INFILTRATION BASINS 5 BASINS ALONG THE S. HIGHLAND AVENUE, AND 1 BASIN AT THE NE CORNER OF CITRUS AVENUE BMP Maintenance and Responsibility Information NWC CITRUS AND SOUTH HIGHLAND AVENUE 760-832-1760 JASPAL SINGH SIDHU PRINCIPAL ACE DESIGN LLC 1024 IRON POINT ROAD, SUITE NO. 146, FOLSOM, CA 95630 jaspal@aceengineering.us 702-429-7355 JINDER SINGH EXHIBIT "A" LEGAL DESCRIPTION Order No.:19000481298 Escrow No.:19000481298 The land referred to herein is situated in the State of California, County of San Bernardino, and described as follows: Parcel 1: Lots 14, 15, 16, 33, 162, 163, 164, 165, 166, 167, 168, 169, 170, 171, 173, 174, 175, 176 and 177 of Tract No. 3348, Highland Haven, in the City of Fontana, County of San Bernardino, State of California, as per plat filed in Book 47, Page(s) 14, 15 and 16, Records of said County. Parcel 2: Lot 17 of Tract No. 3348, Highland Haven, in the City of Fontana, County of San Bernardino, State of California, as per plat filed in Book 47, Page(s) 14, 15 and 16, Records of said County. Excepting therefrom 1/2 of all petroleum, oil, natural gas and all other hydrocarbons and minerals of every kind and nature, and products derived therefrom, within, on or underlying said land or that may be produced therefrom, and all rights thereto, as reserved by the Sunland Development Corporation, a corporation, in the Deed recorded October 16, 1958 in Book 4630, Page(s) 340 of Official Records. Parcel 3: Lot 18 Tract No. 3348, Highland Haven, in the City of Fontana, County of San Bernardino, State of California, as per plat filed in Book 47, Page(s) 14, 15 and 16, Records of said County. Excepting therefrom 1/2 of all petroleum, oil, natural gas and all other hydrocarbons and minerals of every kind and nature, and products derived therefrom, within, on or underlying said land or that may be produced therefrom, and all rights thereto, as reserved by the Sunland Development Corporation, a corporation, in the Deed recorded January 9, 1959 in Book 4697, Page(s) 507 of Official Records. Parcel 4: Lot 19 Tract No. 3348, Highland Haven, in the City of Fontana, County of San Bernardino, State of California, as per plat filed in Book 47, Page(s) 14, 15 and 16, Records of said County. Excepting therefrom 1/2 of all petroleum, oil, natural gas and all other hydrocarbons and minerals of every kind and nature, and products derived therefrom, within, on or underlying said land or that may be produced therefrom, and all rights thereto, as reserved by the Illiana Corporation, a corporation, in the Deed recorded November 29, 1955 in Book 3799, Page(s) 328 of Official Records. Parcel 5: Lot 20 Tract No. 3348, Highland Haven, in the City of Fontana, County of San Bernardino, State of California, as per plat filed in Book 47, Page(s) 14, 15 and 16, Records of said County. Excepting therefrom 1/2 of all petroleum, oil, natural gas and all other hydrocarbons and minerals of every kind and nature, and products derived therefrom, within, on or underlying said land or that may be produced therefrom, and all rights thereto, as reserved by the Sunland Development Corporation, a corporation, in the Deed recorded March 21, 1958 in Book 4465, Page(s) 560 of Official Records. Parcel 6: All those portions of Lots 21 through 31 of Tract No. 3348, Highland Haven, in the City of Fontana, County of San Bernardino, State of California, as per plat filed in Book 47, Page(s) 14, 15 and 16, records of said County, more particularly described as follows: Beginning at a point on the West line of said Lot 21, distant thereon, South 0°15'26" East, 0.197 meters (0.65 feet) from the Northwest corner thereof, said point also being on a non-tangent curve concave southerly and having a radius of 335.860 meters (1101.90 feet); Thence easterly along said curve from a tangent bearing of South 79°46'36" East, through a central angle of 05°37'20", an arc length of 32.957 meters (108.26 feet) to the beginning of a compound curve, having a radius of 30.480 meters (100.00 feet); Thence along said curve, through a central angle of 29°54'03", an arc length of 15.906 meters (52.18 feet); Thence South 44°15'13" East, 13.497 meters (44.29) feet) to the beginning of a curve, concave northwesterly and having a radius of 15.240 meters (50.00 feet); Thence southeasterly, easterly, northeasterly, northerly and northwesterly along said curve, through a central angle of 208°45'25", an arc length of 55.527 meters (182.17 feet) to the beginning of Course 'A'; Thence along said Course 'A' South 89°28'57" East, 115.516 meters (378.99 feet) to the East line of Lot 30 of said tract and the beginning of Course 'B'; Thence along said Course 'B', South 70°37'46" East, 19.738 meters (64.76 feet) to the East line of said Lot 31; Thence along last said East line South 0°15'51" East, 35.051 meters (115.00 feet) to the Southeast corner of said Lot 31; Thence South 89°44'20" West, 204.489 meters (670.90 feet) to the Southwest corner of said Lot 21; Thence along the West line of said Lot 21, North 0°15'26" West, 43.514 meters (142.76 feet) to the Point of Beginning. Excepting therefrom 1/2 of all petroleum, oil, natural gas and all other hydrocarbons and minerals of every kind and nature, and products derived therefrom, within on or underlying said land or that may be produced therefrom, and all rights thereto, as reserved by the Sunland Development Corporation, a corporation, in the deed recorded June 17, 1958 in Book 4532 Page 176, recorded October 8, 1958 in Book 4623 Page 416 and recorded May 7, 1959 in Book 4811, Page(s) 482, and July 28, 1961 in Book 5470, Page(s) 24. Excepting therefrom 1/2 of all petroleum, oil, natural gas and all other hydrocarbons and minerals of every kind and nature, and products derived therefrom, within, on or underlying said land or that may be produced therefrom, all rights thereto, as reserved by the Illiana Corporation, a corporation, in the Deed recorded February 3, 1956 in Book 3848, Page(s) 538 and recorded July 22, 1957 in Book 4284, Page(s) 226, both of Official Records. Parcel 7: Lot 32 of Tract No. 3348, Highland Haven, in the City of Fontana, County of San Bernardino, State of California, as per plat filed in Book 47, Page(s) 14, 15 and 16, records of said County. Excepting therefrom the land described in Quitclaim Deed to the State of California, recorded March 23, 2004 as Instrument No. 04-196460 of Official Records. Excepting therefrom 1/2 of all petroleum, oil, natural gas and all other hydrocarbons and minerals of every kind and nature, and products derived therefrom, within, on or underlying said land or that may be produced therefrom, all rights thereto, as reserved by Harry Pon and Angela Pon, husband and wife, in the Deed recorded November 21, 1957 in Book 4373, Page(s) 477 of Official Records. Parcel 8: Lot 34 of Tract No. 3348, Highland Haven, in the City of Fontana, State of California, as per plat filed in Book 47, Page(s) 14, 15 and 16, records of said County. Excepting therefrom the land described in Quitclaim Deed to the State of California, recorded March 23, 2004 as Instrument No. 04-196457 of Official Records. Parcel 9: Lot 35 of Tract No. 3348, Highland Haven, in the City of Fontana, State of California, as per plat filed in Book 47, Page(s) 14, 15 and 16, records of said County. Excepting therefrom the land described in Quitclaim Deed to the State of California, recorded March 23, 2004 as Instrument No. 196467 of Official Records. Parcel 10: Lot 161 of Tract No. 3348, Highland Haven, in the City of Fontana, County of San Bernardino, State of California, as per plat filed in Book 47, Page(s) 14, 15 and 16, records of said County. Excepting therefrom 1/2 of all petroleum, oil, natural gas and all other hydrocarbons and minerals of every kind and nature, and products derived therefrom, within, on or underlying said land or that may be produced therefrom, and all rights thereto, as reserved in the deed recorded September 23, 1955 in Book 3746, Page(s) 457 of Official Records. Parcel 11: Lot 172 of Tract No. 3348, Highland Haven, in the City of Fontana, County of San Bernardino, State of California, as per plat filed in Book 47, Page(s) 14, 15 and 16, records of said County. Excepting therefrom 1/2 of all petroleum, oil, natural gas and other hydrocarbons and minerals of every kind and nature, and products derived therefrom, within, on or under said land, waiving all right of ingress and egress for purposes of mining or drilling, as reserved in the deed from Sunland Development Corporation, dated July 15, 1958 and recorded July 29, 1958 in Book 4564, Page(s) 517 of Official Records. Parcel 12: A portion of Lot 178 of Tract No. 3348, Highland Haven, in the City of Riverside, County of San Bernardino, State of California, as per plat filed in Book 47, Page(s) 14, 15 and 16, records of said County, more particularly described as follows: Beginning at the most northerly corner of said lot; Thence South 0°09'00" East 63.10 feet (19.233 meters) along the easterly line of said lot, to a point in a non-tangent curve concave northerly and having a radius of 798.00 feet (243.231 meters), and to which a radial line bears South 6°05'28" West, said curve also lying 52.00 feet (15.850 meters) northerly from and concentric with the centerline of South Highland Avenue, as shown on a survey filed Book 116, pages 47 through 51 of Records of Survey; Thence westerly 80.04 feet (24.396 meters) along said curve, through a central angle of 5°44'49", to the Northwesterly line of said lot; Thence North 57°18'00" East 93.72 feet (28.566 meters) along said line, to the Point of Beginning. Parcel 13: Lot 13 of Tract No. 3348, Highland Haven, in the City of Fontana, County of San Bernardino, State of California, as per plat filed in Book 47, Page(s) 14, 15 and 16, records of said County. Excepting therefrom 1/2 of all petroleum, oil, natural gas and other hydrocarbons and minerals of every kind and nature, and products derived therefrom, within, on or under said land or that may be produced therefrom, and all rights thereto, as reserved by the Illiana Corporation in the deed recorded July 3, 1953 in Book 3199 page 317 of Official Records. APNs: 0228-301-01-0000, 0228-301-02-0000, 0228-301-03-0000, 0228-301-04-0000, 0228-301-05-0000, 0228-301-06-0000, 0228-301-07-0000, 0228-301-08-0000, 0228-301-20-0000, 0228-301-21-0000, 0228-301-22-0000, 0228-301-23-0000, 0228-301-33-0000, 0228-301-34-0000, 0228-301-35-0000, 0228-301-36-0000, 0228-301-37-0000, 0228-301-38-0000, 0228-301-39-0000, 0228-301-40-0000, 0228-301-41-0000, 0228-301-42-0000, 0228-301-43-0000, 0228-301-44-0000, 0228-301-45-0000, 0228-301-46-0000, 0228-301-47-0000, 0228-301-48-0000, 0228-301-49-0000, 0228-301-51-0000, and 0228-301-52-0000 (End of Legal Description) NORTHPROJECT Attachment 1: Storm Water BMP Educational Materials For more information about how you can prevent stormwater pollution: www.sbcountystormwater.org For more information about how you can prevent stormwater pollution: www.sbcountystormwater.org For more information about how you can prevent stormwater pollution: www.sbcountystormwater.org For more information about how you can prevent stormwater pollution: www.sbcountystormwater.org Landscape Maintenance SC-73 January 2003 California Stormwater BMP Handbook 1 of 6 Municipal www.cabmphandbooks.com Description Landscape maintenance activities include vegetation removal; herbicide and insecticide application; fertilizer application; watering; and other gardening and lawn care practices. Vegetation control typically involves a combination of chemical (herbicide) application and mechanical methods. All of these maintenance practices have the potential to contribute pollutants to the storm drain system. The major objectives of this BMP are to minimize the discharge of pesticides, herbicides and fertilizers to the storm drain system and receiving waters; prevent the disposal of landscape waste into the storm drain system by collecting and properly disposing of clippings and cuttings, and educating employees and the public. Approach Pollution Prevention Implement an integrated pest management (IPM) program. IPM is a sustainable approach to managing pests by combining biological, cultural, physical, and chemical tools. Choose low water using flowers, trees, shrubs, and groundcover. Consider alternative landscaping techniques such as naturescaping and xeriscaping. Conduct appropriate maintenance (i.e. properly timed fertilizing, weeding, pest control, and pruning) to help preserve the landscapes water efficiency. Objectives Contain Educate Reduce/Minimize Product Substitution Targeted Constituents Sediment ; Nutrients ; Trash ; Metals Bacteria Oil and Grease Organics Oxygen Demanding ; Housekeeping Practices SC-60 January 2003 California Stormwater BMP Handbook 1 of 3 Municipal www.cabmphandbooks.com Description Promote efficient and safe housekeeping practices (storage, use, and cleanup) when handling potentially harmful materials such as fertilizers, pesticides, cleaning solutions, paint products, automotive products, and swimming pool chemicals. Related information is provided in BMP fact sheets SC-11 Spill Prevention, Control & Cleanup and SC-34 Waste Handling & Disposal. Approach Pollution Prevention Purchase only the amount of material that will be needed for foreseeable use. In most cases this will result in cost savings in both purchasing and disposal. See SC-61 Safer Alternative Products for additional information. Be aware of new products that may do the same job with less environmental risk and for less or the equivalent cost. Total cost must be used here; this includes purchase price, transportation costs, storage costs, use related costs, clean up costs and disposal costs. Suggested Protocols General Keep work sites clean and orderly. Remove debris in a timely fashion. Sweep the area. Dispose of wash water, sweepings, and sediments, properly. Recycle or dispose of fluids properly. Establish a daily checklist of office, yard and plant areas to confirm cleanliness and adherence to proper storage and security. Specific employees should be assigned specific inspection responsibilities and given the authority to remedy any problems found. Post waste disposal charts in appropriate locations detailing for each waste its hazardous nature (poison, corrosive, flammable), prohibitions on its disposal (dumpster, drain, sewer) and the recommended disposal method (recycle, sewer, burn, storage, landfill). Summarize the chosen BMPs applicable to your operation and post them in appropriate conspicuous places. Objectives Cover Contain Educate Reduce/Minimize Product Substitution Targeted Constituents Sediment ; Nutrients ; Trash ; Metals ; Bacteria ; Oil and Grease ; Organics ; Oxygen Demanding ; SC-60 Housekeeping Practices 2 of 3 California Stormwater BMP Handbook January 2003 Municipal www.cabmphandbooks.com Require a signed checklist from every user of any hazardous material detailing amount taken, amount used, amount returned and disposal of spent material. Do a before audit of your site to establish baseline conditions and regular subsequent audits to note any changes and whether conditions are improving or deteriorating. Keep records of water, air and solid waste quantities and quality tests and their disposition. Maintain a mass balance of incoming, outgoing and on hand materials so you know when there are unknown losses that need to be tracked down and accounted for. Use and reward employee suggestions related to BMPs, hazards, pollution reduction, work place safety, cost reduction, alternative materials and procedures, recycling and disposal. Have, and review regularly, a contingency plan for spills, leaks, weather extremes etc. Make sure all employees know about it and what their role is so that it comes into force automatically. Training Train all employees, management, office, yard, manufacturing, field and clerical in BMPs and pollution prevention and make them accountable. Train municipal employees who handle potentially harmful materials in good housekeeping practices. Train personnel who use pesticides in the proper use of the pesticides. The California Department of Pesticide Regulation license pesticide dealers, certify pesticide applicators and conduct onsite inspections. Train employees and contractors in proper techniques for spill containment and cleanup. The employee should have the tools and knowledge to immediately begin cleaning up a spill if one should occur. Spill Response and Prevention Refer to SC-11, Spill Prevention, Control & Cleanup. Keep your Spill Prevention Control and Countermeasure (SPCC) plant up-to-date, and implement accordingly. Have spill cleanup materials readily available and in a known location. Cleanup spills immediately and use dry methods if possible. Properly dispose of spill cleanup material. Other Considerations There are no major limitations to this best management practice. There are no regulatory requirements to this BMP. Existing regulations already require municipalities to properly store, use, and dispose of hazardous materials Housekeeping Practices SC-60 January 2003 California Stormwater BMP Handbook 3 of 3 Municipal www.cabmphandbooks.com Requirements Costs Minimal cost associated with this BMP. Implementation of good housekeeping practices may result in cost savings as these procedures may reduce the need for more costly BMPs. Maintenance Ongoing maintenance required to keep a clean site. Level of effort is a function of site size and type of activities. Supplemental Information Further Detail of the BMP The California Integrated Waste Management Board’s Recycling Hotline, 1-800-553-2962, provides information on household hazardous waste collection programs and facilities. Examples There are a number of communities with effective programs. The most pro-active include Santa Clara County and the City of Palo Alto, the City and County of San Francisco, and the Municipality of Metropolitan Seattle (Metro). References and Resources British Columbia Lake Stewardship Society. Best Management Practices to Protect Water Quality from Non-Point Source Pollution. March 2000. http://www.nalms.org/bclss/bmphome.html#bmp King County Stormwater Pollution Control Manual - http://dnr.metrokc.gov/wlr/dss/spcm.htm Model Urban Runoff Program: A How-To Guide for Developing Urban Runoff Programs for Small Municipalities, Prepared by City of Monterey, City of Santa Cruz, California Coastal Commission, Monterey Bay National Marine Sanctuary, Association of Monterey Bay Area Governments, Woodward-Clyde, Central Coast Regional Water Quality Control Board. July, 1998, Revised by California Coastal Commission, February 2002. Orange County Stormwater Program http://www.ocwatersheds.com/stormwater/swp_introduction.asp San Mateo STOPPP - (http://stoppp.tripod.com/bmp.html) SC-73 Landscape Maintenance 2 of 6 California Stormwater BMP Handbook January 2003 Municipal www.cabmphandbooks.com Consider grass cycling (grass cycling is the natural recycling of grass by leaving the clippings on the lawn when mowing. Grass clippings decompose quickly and release valuable nutrients back into the lawn). Suggested Protocols Mowing, Trimming, and Weeding Whenever possible use mechanical methods of vegetation removal (e.g mowing with tractor- type or push mowers, hand cutting with gas or electric powered weed trimmers) rather than applying herbicides. Use hand weeding where practical. Avoid loosening the soil when conducting mechanical or manual weed control, this could lead to erosion. Use mulch or other erosion control measures when soils are exposed. Performing mowing at optimal times. Mowing should not be performed if significant rain events are predicted. Mulching mowers may be recommended for certain flat areas. Other techniques may be employed to minimize mowing such as selective vegetative planting using low maintenance grasses and shrubs. Collect lawn and garden clippings, pruning waste, tree trimmings, and weeds. Chip if necessary, and compost or dispose of at a landfill (see waste management section of this fact sheet). Place temporarily stockpiled material away from watercourses, and berm or cover stockpiles to prevent material releases to storm drains. Planting Determine existing native vegetation features (location, species, size, function, importance) and consider the feasibility of protecting them. Consider elements such as their effect on drainage and erosion, hardiness, maintenance requirements, and possible conflicts between preserving vegetation and the resulting maintenance needs. Retain and/or plant selected native vegetation whose features are determined to be beneficial, where feasible. Native vegetation usually requires less maintenance (e.g., irrigation, fertilizer) than planting new vegetation. Consider using low water use groundcovers when planting or replanting. Waste Management Compost leaves, sticks, or other collected vegetation or dispose of at a permitted landfill. Do not dispose of collected vegetation into waterways or storm drainage systems. Place temporarily stockpiled material away from watercourses and storm drain inlets, and berm or cover stockpiles to prevent material releases to the storm drain system. Reduce the use of high nitrogen fertilizers that produce excess growth requiring more frequent mowing or trimming. Landscape Maintenance SC-73 January 2003 California Stormwater BMP Handbook 3 of 6 Municipal www.cabmphandbooks.com Avoid landscape wastes in and around storm drain inlets by either using bagging equipment or by manually picking up the material. Irrigation Where practical, use automatic timers to minimize runoff. Use popup sprinkler heads in areas with a lot of activity or where there is a chance the pipes may be broken. Consider the use of mechanisms that reduce water flow to sprinkler heads if broken. Ensure that there is no runoff from the landscaped area(s) if re-claimed water is used for irrigation. If bailing of muddy water is required (e.g. when repairing a water line leak), do not put it in the storm drain; pour over landscaped areas. Irrigate slowly or pulse irrigate to prevent runoff and then only irrigate as much as is needed. Apply water at rates that do not exceed the infiltration rate of the soil. Fertilizer and Pesticide Management Utilize a comprehensive management system that incorporates integrated pest management (IPM) techniques. There are many methods and types of IPM, including the following: - Mulching can be used to prevent weeds where turf is absent, fencing installed to keep rodents out, and netting used to keep birds and insects away from leaves and fruit. - Visible insects can be removed by hand (with gloves or tweezers) and placed in soapy water or vegetable oil. Alternatively, insects can be sprayed off the plant with water or in some cases vacuumed off of larger plants. - Store-bought traps, such as species-specific, pheromone-based traps or colored sticky cards, can be used. - Slugs can be trapped in small cups filled with beer that are set in the ground so the slugs can get in easily. - In cases where microscopic parasites, such as bacteria and fungi, are causing damage to plants, the affected plant material can be removed and disposed of (pruning equipment should be disinfected with bleach to prevent spreading the disease organism). - Small mammals and birds can be excluded using fences, netting, tree trunk guards. - Beneficial organisms, such as bats, birds, green lacewings, ladybugs, praying mantis, ground beetles, parasitic nematodes, trichogramma wasps, seed head weevils, and spiders that prey on detrimental pest species can be promoted. Follow all federal, state, and local laws and regulations governing the use, storage, and disposal of fertilizers and pesticides and training of applicators and pest control advisors. SC-73 Landscape Maintenance 4 of 6 California Stormwater BMP Handbook January 2003 Municipal www.cabmphandbooks.com Use pesticides only if there is an actual pest problem (not on a regular preventative schedule). Do not use pesticides if rain is expected. Apply pesticides only when wind speeds are low (less than 5 mph). Do not mix or prepare pesticides for application near storm drains. Prepare the minimum amount of pesticide needed for the job and use the lowest rate that will effectively control the pest. Employ techniques to minimize off-target application (e.g. spray drift) of pesticides, including consideration of alternative application techniques. Fertilizers should be worked into the soil rather than dumped or broadcast onto the surface. Calibrate fertilizer and pesticide application equipment to avoid excessive application. Periodically test soils for determining proper fertilizer use. Sweep pavement and sidewalk if fertilizer is spilled on these surfaces before applying irrigation water. Purchase only the amount of pesticide that you can reasonably use in a given time period (month or year depending on the product). Triple rinse containers, and use rinse water as product. Dispose of unused pesticide as hazardous waste. Dispose of empty pesticide containers according to the instructions on the container label. Inspection Inspect irrigation system periodically to ensure that the right amount of water is being applied and that excessive runoff is not occurring. Minimize excess watering, and repair leaks in the irrigation system as soon as they are observed. Inspect pesticide/fertilizer equipment and transportation vehicles daily. Training Educate and train employees on use of pesticides and in pesticide application techniques to prevent pollution. Pesticide application must be under the supervision of a California qualified pesticide applicator. Train/encourage municipal maintenance crews to use IPM techniques for managing public green areas. Annually train employees within departments responsible for pesticide application on the appropriate portions of the agency’s IPM Policy, SOPs, and BMPs, and the latest IPM techniques. Landscape Maintenance SC-73 January 2003 California Stormwater BMP Handbook 5 of 6 Municipal www.cabmphandbooks.com Employees who are not authorized and trained to apply pesticides should be periodically (at least annually) informed that they cannot use over-the-counter pesticides in or around the workplace. Use a training log or similar method to document training. Spill Response and Prevention Refer to SC-11, Spill Prevention, Control & Cleanup Have spill cleanup materials readily available and in a know in location Cleanup spills immediately and use dry methods if possible. Properly dispose of spill cleanup material. Other Considerations The Federal Pesticide, Fungicide, and Rodenticide Act and California Title 3, Division 6, Pesticides and Pest Control Operations place strict controls over pesticide application and handling and specify training, annual refresher, and testing requirements. The regulations generally cover: a list of approved pesticides and selected uses, updated regularly; general application information; equipment use and maintenance procedures; and record keeping. The California Department of Pesticide Regulations and the County Agricultural Commission coordinate and maintain the licensing and certification programs. All public agency employees who apply pesticides and herbicides in “agricultural use” areas such as parks, golf courses, rights-of-way and recreation areas should be properly certified in accordance with state regulations. Contracts for landscape maintenance should include similar requirements. All employees who handle pesticides should be familiar with the most recent material safety data sheet (MSDS) files. Municipalities do not have the authority to regulate the use of pesticides by school districts, however the California Healthy Schools Act of 2000 (AB 2260) has imposed requirements on California school districts regarding pesticide use in schools. Posting of notification prior to the application of pesticides is now required, and IPM is stated as the preferred approach to pest management in schools. Requirements Costs Additional training of municipal employees will be required to address IPM techniques and BMPs. IPM methods will likely increase labor cost for pest control which may be offset by lower chemical costs. Maintenance Not applicable SC-73 Landscape Maintenance 6 of 6 California Stormwater BMP Handbook January 2003 Municipal www.cabmphandbooks.com Supplemental Information Further Detail of the BMP Waste Management Composting is one of the better disposal alternatives if locally available. Most municipalities either have or are planning yard waste composting facilities as a means of reducing the amount of waste going to the landfill. Lawn clippings from municipal maintenance programs as well as private sources would probably be compatible with most composting facilities Contractors and Other Pesticide Users Municipal agencies should develop and implement a process to ensure that any contractor employed to conduct pest control and pesticide application on municipal property engages in pest control methods consistent with the IPM Policy adopted by the agency. Specifically, municipalities should require contractors to follow the agency’s IPM policy, SOPs, and BMPs; provide evidence to the agency of having received training on current IPM techniques when feasible; provide documentation of pesticide use on agency property to the agency in a timely manner. References and Resources King County Stormwater Pollution Control Manual. Best Management Practices for Businesses. 1995. King County Surface Water Management. July. On-line: http://dnr.metrokc.gov/wlr/dss/spcm.htm Los Angeles County Stormwater Quality Model Programs. Public Agency Activities http://ladpw.org/wmd/npdes/model_links.cfm Model Urban Runoff Program: A How-To Guide for Developing Urban Runoff Programs for Small Municipalities. Prepared by City of Monterey, City of Santa Cruz, California Coastal Commission, Monterey Bay National Marine Sanctuary, Association of Monterey Bay Area Governments, Woodward-Clyde, Central Coast Regional Water Quality Control Board. July. 1998. Orange County Stormwater Program http://www.ocwatersheds.com/StormWater/swp_introduction.asp Santa Clara Valley Urban Runoff Pollution Prevention Program. 1997 Urban Runoff Management Plan. September 1997, updated October 2000. United States Environmental Protection Agency (USEPA). 2002. Pollution Prevention/Good Housekeeping for Municipal Operations Landscaping and Lawn Care. Office of Water. Office of Wastewater Management. On-line: http://www.epa.gov/npdes/menuofbmps/poll_8.htm Storm Drain Signage SD-13 January 2003 California Stormwater BMP Handbook 1 of 2 New Development and Redevelopment www.cabmphandbooks.com Description Waste materials dumped into storm drain inlets can have severe impacts on receiving and ground waters. Posting notices regarding discharge prohibitions at storm drain inlets can prevent waste dumping. Storm drain signs and stencils are highly visible source controls that are typically placed directly adjacent to storm drain inlets. Approach The stencil or affixed sign contains a brief statement that prohibits dumping of improper materials into the urban runoff conveyance system. Storm drain messages have become a popular method of alerting the public about the effects of and the prohibitions against waste disposal. Suitable Applications Stencils and signs alert the public to the destination of pollutants discharged to the storm drain. Signs are appropriate in residential, commercial, and industrial areas, as well as any other area where contributions or dumping to storm drains is likely. Design Considerations Storm drain message markers or placards are recommended at all storm drain inlets within the boundary of a development project. The marker should be placed in clear sight facing toward anyone approaching the inlet from either side. All storm drain inlet locations should be identified on the development site map. Designing New Installations The following methods should be considered for inclusion in the project design and show on project plans: Provide stenciling or labeling of all storm drain inlets and catch basins, constructed or modified, within the project area with prohibitive language. Examples include “NO DUMPING Design Objectives Maximize Infiltration Provide Retention Slow Runoff Minimize Impervious Land Coverage ; Prohibit Dumping of Improper Materials Contain Pollutants Collect and Convey SD-13 Storm Drain Signage 2 of 2 California Stormwater BMP Handbook January 2003 New Development and Redevelopment www.cabmphandbooks.com – DRAINS TO OCEAN” and/or other graphical icons to discourage illegal dumping. Post signs with prohibitive language and/or graphical icons, which prohibit illegal dumping at public access points along channels and creeks within the project area. Note - Some local agencies have approved specific signage and/or storm drain message placards for use. Consult local agency stormwater staff to determine specific requirements for placard types and methods of application. Redeveloping Existing Installations Various jurisdictional stormwater management and mitigation plans (SUSMP, WQMP, etc.) define “redevelopment” in terms of amounts of additional impervious area, increases in gross floor area and/or exterior construction, and land disturbing activities with structural or impervious surfaces. If the project meets the definition of “redevelopment”, then the requirements stated under “ designing new installations” above should be included in all project design plans. Additional Information Maintenance Considerations Legibility of markers and signs should be maintained. If required by the agency with jurisdiction over the project, the owner/operator or homeowner’s association should enter into a maintenance agreement with the agency or record a deed restriction upon the property title to maintain the legibility of placards or signs. Placement Signage on top of curbs tends to weather and fade. Signage on face of curbs tends to be worn by contact with vehicle tires and sweeper brooms. Supplemental Information Examples Most MS4 programs have storm drain signage programs. Some MS4 programs will provide stencils, or arrange for volunteers to stencil storm drains as part of their outreach program. Other Resources A Manual for the Standard Urban Stormwater Mitigation Plan (SUSMP), Los Angeles County Department of Public Works, May 2002. Model Standard Urban Storm Water Mitigation Plan (SUSMP) for San Diego County, Port of San Diego, and Cities in San Diego County, February 14, 2002. Model Water Quality Management Plan (WQMP) for County of Orange, Orange County Flood Control District, and the Incorporated Cities of Orange County, Draft February 2003. Ventura Countywide Technical Guidance Manual for Stormwater Quality Control Measures, July 2002. Trash Storage Areas SD-32 January 2003 California Stormwater BMP Handbook 1 of 2 New Development and Redevelopment www.cabmphandbooks.com Description Trash storage areas are areas where a trash receptacle (s) are located for use as a repository for solid wastes. Stormwater runoff from areas where trash is stored or disposed of can be polluted. In addition, loose trash and debris can be easily transported by water or wind into nearby storm drain inlets, channels, and/or creeks. Waste handling operations that may be sources of stormwater pollution include dumpsters, litter control, and waste piles. Approach This fact sheet contains details on the specific measures required to prevent or reduce pollutants in stormwater runoff associated with trash storage and handling. Preventative measures including enclosures, containment structures, and impervious pavements to mitigate spills, should be used to reduce the likelihood of contamination. Suitable Applications Appropriate applications include residential, commercial and industrial areas planned for development or redevelopment. (Detached residential single-family homes are typically excluded from this requirement.) Design Considerations Design requirements for waste handling areas are governed by Building and Fire Codes, and by current local agency ordinances and zoning requirements. The design criteria described in this fact sheet are meant to enhance and be consistent with these code and ordinance requirements. Hazardous waste should be handled in accordance with legal requirements established in Title 22, California Code of Regulation. Wastes from commercial and industrial sites are typically hauled by either public or commercial carriers that may have design or access requirements for waste storage areas. The design criteria in this fact sheet are recommendations and are not intended to be in conflict with requirements established by the waste hauler. The waste hauler should be contacted prior to the design of your site trash collection areas. Conflicts or issues should be discussed with the local agency. Designing New Installations Trash storage areas should be designed to consider the following structural or treatment control BMPs: Design trash container areas so that drainage from adjoining roofs and pavement is diverted around the area(s) to avoid run-on. This might include berming or grading the waste handling area to prevent run-on of stormwater. Make sure trash container areas are screened or walled to prevent off-site transport of trash. Design Objectives Maximize Infiltration Provide Retention Slow Runoff Minimize Impervious Land Coverage Prohibit Dumping of Improper Materials ; Contain Pollutants Collect and Convey SD-32 Trash Storage Areas 2 of 2 California Stormwater BMP Handbook January 2003 New Development and Redevelopment www.cabmphandbooks.com Use lined bins or dumpsters to reduce leaking of liquid waste. Provide roofs, awnings, or attached lids on all trash containers to minimize direct precipitation and prevent rainfall from entering containers. Pave trash storage areas with an impervious surface to mitigate spills. Do not locate storm drains in immediate vicinity of the trash storage area. Post signs on all dumpsters informing users that hazardous materials are not to be disposed of therein. Redeveloping Existing Installations Various jurisdictional stormwater management and mitigation plans (SUSMP, WQMP, etc.) define “redevelopment” in terms of amounts of additional impervious area, increases in gross floor area and/or exterior construction, and land disturbing activities with structural or impervious surfaces. The definition of “ redevelopment” must be consulted to determine whether or not the requirements for new development apply to areas intended for redevelopment. If the definition applies, the steps outlined under “designing new installations” above should be followed. Additional Information Maintenance Considerations The integrity of structural elements that are subject to damage (i.e., screens, covers, and signs) must be maintained by the owner/operator. Maintenance agreements between the local agency and the owner/operator may be required. Some agencies will require maintenance deed restrictions to be recorded of the property title. If required by the local agency, maintenance agreements or deed restrictions must be executed by the owner/operator before improvement plans are approved. Other Resources A Manual for the Standard Urban Stormwater Mitigation Plan (SUSMP), Los Angeles County Department of Public Works, May 2002. Model Standard Urban Storm Water Mitigation Plan (SUSMP) for San Diego County, Port of San Diego, and Cities in San Diego County, February 14, 2002. Model Water Quality Management Plan (WQMP) for County of Orange, Orange County Flood Control District, and the Incorporated Cities of Orange County, Draft February 2003. Ventura Countywide Technical Guidance Manual for Stormwater Quality Control Measures, July 2002. Efficient Irrigation SD-12 January 2003 California Stormwater BMP Handbook 1 of 2 New Development and Redevelopment www.cabmphandbooks.com Description Irrigation water provided to landscaped areas may result in excess irrigation water being conveyed into stormwater drainage systems. Approach Project plan designs for development and redevelopment should include application methods of irrigation water that minimize runoff of excess irrigation water into the stormwater conveyance system. Suitable Applications Appropriate applications include residential, commercial and industrial areas planned for development or redevelopment. (Detached residential single-family homes are typically excluded from this requirement.) Design Considerations Designing New Installations The following methods to reduce excessive irrigation runoff should be considered, and incorporated and implemented where determined applicable and feasible by the Permittee: Employ rain-triggered shutoff devices to prevent irrigation after precipitation. Design irrigation systems to each landscape area’s specific water requirements. Include design featuring flow reducers or shutoff valves triggered by a pressure drop to control water loss in the event of broken sprinkler heads or lines. Implement landscape plans consistent with County or City water conservation resolutions, which may include provision of water sensors, programmable irrigation times (for short cycles), etc. Design Objectives ; Maximize Infiltration ; Provide Retention ; Slow Runoff Minimize Impervious Land Coverage Prohibit Dumping of Improper Materials Contain Pollutants Collect and Convey SD-12 Efficient Irrigation 2 of 2 California Stormwater BMP Handbook January 2003 New Development and Redevelopment www.cabmphandbooks.com Design timing and application methods of irrigation water to minimize the runoff of excess irrigation water into the storm water drainage system. Group plants with similar water requirements in order to reduce excess irrigation runoff and promote surface filtration. Choose plants with low irrigation requirements (for example, native or drought tolerant species). Consider design features such as: -Using mulches (such as wood chips or bar) in planter areas without ground cover to minimize sediment in runoff -Installing appropriate plant materials for the location, in accordance with amount of sunlight and climate, and use native plant materials where possible and/or as recommended by the landscape architect -Leaving a vegetative barrier along the property boundary and interior watercourses, to act as a pollutant filter, where appropriate and feasible -Choosing plants that minimize or eliminate the use of fertilizer or pesticides to sustain growth Employ other comparable, equally effective methods to reduce irrigation water runoff. Redeveloping Existing Installations Various jurisdictional stormwater management and mitigation plans (SUSMP, WQMP, etc.) define “redevelopment” in terms of amounts of additional impervious area, increases in gross floor area and/or exterior construction, and land disturbing activities with structural or impervious surfaces. The definition of “ redevelopment” must be consulted to determine whether or not the requirements for new development apply to areas intended for redevelopment. If the definition applies, the steps outlined under “designing new installations” above should be followed. Other Resources A Manual for the Standard Urban Stormwater Mitigation Plan (SUSMP), Los Angeles County Department of Public Works, May 2002. Model Standard Urban Storm Water Mitigation Plan (SUSMP) for San Diego County, Port of San Diego, and Cities in San Diego County, February 14, 2002. Model Water Quality Management Plan (WQMP) for County of Orange, Orange County Flood Control District, and the Incorporated Cities of Orange County, Draft February 2003. Ventura Countywide Technical Guidance Manual for Stormwater Quality Control Measures, July 2002. TECHNICAL GUIDANCE DOCUMENT APPENDICES XIV-29 May 19, 2011 INF-3: Bioretention with no Underdrain Bioretention stormwater treatment facilities are landscaped shallow depressions that capture and filter stormwater runoff. These facilities function as a soil and plant-based filtration device that removes pollutants through a variety of physical, biological, and chemical treatment processes. The facilities normally consist of a ponding area, mulch layer, planting soils, and plants. As stormwater passes down through the planting soil, pollutants are filtered, adsorbed, and biodegraded by the soil and plants. For areas with low permeability native soils or steep slopes, bioretention areas can be designed with an underdrain system that routes the treated runoff to the storm drain system rather than depending entirely on infiltration. Feasibility Screening Considerations x Bioretention with no underdrains shall pass infiltration infeasibility screening criteria to be considered for use. Opportunity Criteria x Land use may include commercial, residential, mixed use, institutional, and subdivisions. Bioretention may also be applied in parking lot islands, cul-de-sacs, traffic circles, road shoulders, and road medians. x Drainage area is ≤ 5 acres, preferrably ≤ 1 acre. x Area available for infiltration. x Soils are adequate for infiltration or can be amended to improve infiltration capacity. Site slope is less than 15 percent. OC-Specific Design Criteria and Considerations □ Placement of BMPs should observe geotechnical recommendations with respect to geological hazards (e.g. landslides, liquefaction zones, erosion, etc.) and set-backs (e.g., foundations, utilities, roadways, etc.) □Depth to mounded seasonally high groundwater shall not be less than 5 feet. □ If sheet flow is conveyed to the treatment area over stabilized grassed areas, the site must begraded in such a way that minimizes erosive conditions; sheet flow velocities should not exceed1 foot per second. □Ponding depth should not exceed 18 inches; fencing may be required if ponding depth exceeds6 inches to mitigate the risk of drowning. □Planting/storage media shall be based on the recommendations contained in MISC-1:Planting/Storage Media □The minimum amended soil depth is 1.5 feet (3 feet is preferred). □The maximum drawdown time of the planting soil is 48 hours. Also known as: ¾Rain gardens ¾Infiltration planter Bioretention Source: Geosyntec Consultants TECHNICAL GUIDANCE DOCUMENT APPENDICES XIV-30 May 19, 2011 □ Infiltration pathways may need to be restricted due to the close proximity of roads, foundations, or other infrastructure. A geomembrane liner, or other equivalent water proofing, may be placed along the vertical walls to reduce lateral flows. This liner should have a minimum thickness of 30 mils. □ Plant materials should be tolerant of summer drought, ponding fluctuations, and saturated soil conditions for 48 hours; native plant species and/or hardy cultivars that are not invasive and do not require chemical fertilizers or pesticides should be used to the maximum extent feasible. □ The bioretention area should be covered with 2-4 inches (average 3 inches) of mulch at startup and an additional placement of 1-2 inches of mulch should be added annually. □ An optional gravel drainage layer may be installed below planting media to augment storage volume. □ An overflow device is required at the top of the ponding depth. □ Dispersed flow or energy dissipation (i.e. splash rocks) for piped inlets should be provided at basin inlet to prevent erosion. Simple Sizing Method for Bioretention with no Underdrain If the Simple Design Capture Volume Sizing Method described in Appendix III.3.1 is used to size a bioretention area with underdrains, the user calculates the DCV and designs the system with geometry required to draw down the DCV in 48 hours. The sizing steps are as follows: Step 1: Determine the Bioretention Design Capture Volume Calculate the DCV using the Simple Design Capture Volume Sizing Method described in Appendix III.3.1. Step 2: Determine the 48-hour Ponding Depth The depth of effective storage depth that can be drawn down in 48 hours can be calculated using the following equation: d48 = KDESIGN × 4 Where: d48 = bioretention 48-hour effective depth, ft KDESIGN = bioretention design infiltration rate, in/hr (See Appendix VII) This is the maximum effective depth of the basin below the overflow device to achieve drawdown in 48 hours. Effective depth includes ponding water and media/aggregate pore space. Step 3: Design System Geometry to Provide d48 Design system geometry such that d48 ≥ dEFFECTIVE = (dP + nMdM + nGdG) Where: d48 = depth of water that can drain in 48 hours dEFFECTIVE = total effective depth of water stored in bioretention area, ft dP = bioretention ponding depth, ft (should be less than or equal to 1.5 ft) nM = bioretention media porosity dM = bioretention media depth, ft TECHNICAL GUIDANCE DOCUMENT APPENDICES XIV-31 May 19, 2011 nG = bioretention gravel layer porosity; 0.35 may be assumed where other information is not available dG = bioretention gravel layer depth, ft Step 4: Calculate the Required Infiltrating Area The required infiltrating area (i.e. measured at the media surface) can be calculated using the following equation: A = DCV / dEFFECTIVE Where: A = required infiltrating area, sq-ft (measured as the media surface area) DCV = design capture volume, cu-ft (see Step 1) dEFFECTIVE = total effective depth of water stored in bioretention area, ft (from Step 3) This does not include the side slopes, access roads, etc. which would increase bioretention footprint. Capture Efficiency Method for Bioretention with no Underdrain If BMP geometry has already been defined and deviates from the 48 hour drawdown time, the designer can use the Capture Efficiency Method for Volume-Based, Constant Drawdown BMPs (See Appendix III.3.2) to determine the fraction of the DCV that must be provided to manage 80 percent of average annual runoff volume. This method accounts for drawdown time different than 48 hours. Step 1: Determine the drawdown time associated with the selected basin geometry DD = (dEFFECTIVE / KDESIGN) × 12 in/ft Where: DD = time to completely drain infiltration basin ponding depth, hours dEFFECTIVE ≤ (dP + nMdM + nGdG) dP = bioretention ponding depth, ft (should be less than or equal to 1.5 ft) nM = bioretention media porosity dM = bioretention media depth, ft nG = bioretention gravel layer porosity; 0.35 may be assumed where other information is not available dG = bioretention gravel layer depth, ft KDESIGN = basin design infiltration rate, in/hr (See Appendix VII) Step 2: Determine the Required Adjusted DCV for this Drawdown Time Use the Capture Efficiency Method for Volume-Based, Constant Drawdown BMPs (See Appendix III.3.2) to calculate the fraction of the DCV the basin must hold to achieve 80 percent capture of average annual stormwater runoff volume based on the basin drawdown time calculated above. Step 4: Check that the Bioretention Effective Depth Drains in no Greater than 96 Hours DD = (dEFFECTIVE / KDESIGN) × 12 Where: DD = time to completely drain bioretention facility, hours dEFFECTIVE = total effective depth of water stored in bioretention area, ft (from Step 3) KDESIGN = basin design infiltration rate, in/hr (See Appendix VII) TECHNICAL GUIDANCE DOCUMENT APPENDICES XIV-32 May 19, 2011 If DDALL is greater than 96 hours, adjust bioretention media depth and/or gravel layer depth until DD is less than 96 hours. This duration is based on preventing extended periods of saturation from causing plant mortality. Step 5: Determine the Basin Infiltrating Area Needed The required infiltrating area (i.e. the surface area of the top of the media layer) can be calculated using the following equation: A = DCV/ dEFFECTIVE Where: A = required infiltrating area, sq-ft (measured at the media surface) DCV = design capture volume, adjusted for drawdown time, cu-ft (see Step 1) dEFFECTIVE = total effective depth of water stored in bioretention area, ft (from Step 3) This does not include the side slopes, access roads, etc. which would increase bioretention footprint. If the area required is greater than the selected basin area, adjust surface area or adjust ponding depth and recalculate required area until the required area is achieved. Configuration for Use in a Treatment Train x Bioretention areas may be preceeded in a treatment train by HSCs in the drainage area, which would reduce the required volume of the bioretention cell. x Bioretention areas can be incorporated in a treatment train to provide enhanced water quality treatment and reductions in runoff volume and rate. For example, runoff can be collected from a roadway in a vegetated swale that then flows to a bioretention area. Similarly, bioretention could be used to manage overflow from a cistern. Additional References for Design Guidance x CASQA BMP Handbook for New and Redevelopment: http://www.cabmphandbooks.com/Documents/Development/TC-32.pdf x SMC LID Manual (pp 68): http://www.lowimpactdevelopment.org/guest75/pub/All_Projects/SoCal_LID_Manual/SoCalL ID_Manual_FINAL_040910.pdf x Los Angeles County Stormwater BMP Design and Maintenance Manual, Chapter 5: http://dpw.lacounty.gov/DES/design_manuals/StormwaterBMPDesignandMaintenance.pdf x San Diego County LID Handbook Appendix 4 (Factsheet 7): http://www.sdcounty.ca.gov/dplu/docs/LID-Appendices.pdf x Los Angeles Unified School District (LAUSD) Stormwater Technical Manual, Chapter 4. http://www.laschools.org/employee/design/fs-studies-and- reports/download/white_paper_report_material/Storm_Water_Technical_Manual_2009-opt- red.pdf?version_id=76975850 County of Los Angeles Low Impact Development Standards Manual, Chapter 5: http://dpw.lacounty.gov/wmd/LA_County_LID_Manual.pdf ATTACHMENT 2 RAINFALL DATA FROM NOAA ATLAS 14 AND INCLUDED