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Ater Resource Plan Functionally Equivalent Document S E P T E M B E R 2 0 1 7 MARIN COUNTY STORMWATER POLLUTION PREVENTION PROGRAM Storm Water Resource Plan Functionally Equivalent Document prepared by This page intentionally left blank Table of Contents 1. Introduction ........................................................................................................................ 1-1 1.1 Organization of Report ................................................................................................ 1-1 2. Organization, Coordination, Collaboration (Guidelines Section VI.B) ........................ 2-1 2.1 Stakeholder/Public Participation and Outreach Efforts ............................................... 2-1 2.1.1 MCSTOPPP Monthly Agency Staff Committee Meetings ..................................... 2-1 2.1.2 North Bay Watershed Association Board of Directors Meetings ............................ 2-2 2.1.3 MCSTOPPP Citizen Advisory Committee (CAC) Meetings .................................. 2-2 2.1.4 MCSTOPPP Website ............................................................................................... 2-3 2.2 Required Decisions that Must be Made by Local, State or Federal Agencies ............. 2-3 2.3 Stormwater and Dry Weather Runoff Management Objectives .................................. 2-4 2.4 Relationships to Other Plans ........................................................................................ 2-4 2.4.1 San Francisco Bay Area Integrated Regional Water Management Plan ................. 2-4 2.4.2 Other Plans ............................................................................................................... 2-4 3. Watershed Identification (Guidelines Section VI.A) ...................................................... 3-1 3.1 Watersheds and Subwatersheds Descriptions .............................................................. 3-1 3.1.1 Gallinas Creek .......................................................................................................... 3-5 3.1.2 Miller Creek ............................................................................................................. 3-8 3.1.3 Novato Creek ......................................................................................................... 3-10 3.1.4 Richardson Bay ...................................................................................................... 3-12 3.1.5 Ross Valley ............................................................................................................ 3-15 3.1.6 San Rafael .............................................................................................................. 3-18 3.1.7 Southern Coastal Creeks (Alder Creek) ................................................................. 3-20 3.1.8 Stinson Beach Watershed ...................................................................................... 3-23 3.1.9 Lagunitas Creek Watershed (West Marin) ............................................................ 3-25 4. Water Quality Compliance (Guidelines Section V) ........................................................ 4-1 4.1 Applicable Permits and Plans ...................................................................................... 4-1 4.2 Pollutant-Generating Activities ................................................................................... 4-2 5. Quantitative Methods (Guidelines Section VI.C) and Identification and Prioritization of Projects (Guidelines Section VI.D)....................................................................................... 5-1 5.1 Project Opportunities ................................................................................................... 5-1 5.1.1 MCSTOPPP Member Agencies Planned Projects ................................................... 5-2 MCSTOPPP i September2017 Storm Water Resource Plan Functionally Equivalent Document 5.1.2 Project Opportunity Analysis ................................................................................... 5-2 5.1.3 Flood Control ........................................................................................................... 5-3 5.1.4 Water Supply ........................................................................................................... 5-3 5.1.5 Restoration and Rehabilitation ................................................................................. 5-3 5.1.6 Source Control ......................................................................................................... 5-3 5.2 Design Criteria and Best Management Practices ......................................................... 5-3 5.3 Integrated Metric-Based Analysis and Prioritization Process ..................................... 5-4 5.3.1 Potential Project Multiple Benefit Evaluation Methodology................................... 5-4 5.3.2 Water Quality ........................................................................................................... 5-9 5.3.3 Stormwater Capture and Use ................................................................................. 5-10 5.3.4 Water Supply and Flood Management .................................................................. 5-10 5.3.5 Environmental and Community Benefits............................................................... 5-11 5.4 Project Prioritization .................................................................................................. 5-11 5.4.1 Project Prioritization and Selection ....................................................................... 5-11 5.4.2 Selected Projects .................................................................................................... 5-12 5.4.3 Quantitative Analysis of Pollutant Load Reductions and Stormwater Capture from Selected Potential Projects ................................................................................................. 5-17 5.4.4 Results of Quantification ....................................................................................... 5-19 5.5 Data Management ...................................................................................................... 5-23 6. Implementation Strategy and Schedule (Guidelines Section VI.E)............................... 6-1 6.1 Resources for Plan Implementation ............................................................................. 6-1 6.2 Plan Implementation and Achievement of Multiple Benefits...................................... 6-1 6.3 Decision Support Tools and Supporting Data ............................................................. 6-2 6.4 Implementation Strategy, Timeline, and Tracking ...................................................... 6-2 7. Education, Outreach, Public Participation (Guidelines Section VI.F) ......................... 7-1 7.1 Plan Implementation .................................................................................................... 7-1 7.2 Project Design and Implementation ............................................................................. 7-1 8. References ........................................................................................................................... 8-1 MCSTOPPP ii September2017 Storm Water Resource Plan Functionally Equivalent Document List of Appendices Appendix A: Checklist and Self-Certification Appendix B: Equivalency Table Appendix C: Public Engagement Documentation Appendix D: Summary of Land Use Categorization Appendix E: Database of Potential Projects List of Acronyms ASBS Area of Biological Significance BASMAA Bay Area Stormwater Management Agencies Association BCPUD Bolinas Community Public Utility District BMP Best Management Practice CAC Citizen Advisory Committee CIP Capital Improvement Project COW Conserving Our Watersheds DACs Disadvantaged Communities EMC Event Mean Concentration GIS Geographic Information System ICWMP Integrated Coastal Watershed Management Plan LGVSD Las Gallinas Valley Sanitary District LID Low Impact Development MCSTOPPP Marin County Stormwater Pollution Prevention Program MMWD Marin Municipal Water District MRCD Marin Resource Conservation District MS4 Municipal Separate Storm Sewer System NCEI National Center for Environmental Information NOAA National Oceanic and Atmospheric Administration NPDES National Pollutant Discharge Elimination System NWPRR Northwest Pacific Railroad PAHs Polycyclic Aromatic Hydrocarbons ROW Right-of-Way SFRWQCB San Francisco Bay Regional Water Quality Control Board SWRCB State Water Resources Control Board SWRP Storm Water Resource Plan TBWC Tomales Bay Watershed Council TMDL Total Maximum Daily Load TSS Total Suspended Sediment URL Uniform Resource Locators WLA Waste Load Allocation MCSTOPPP iii September2017 Storm Water Resource Plan Functionally Equivalent Document List of Tables Table 3-1. Marin County Watersheds .......................................................................................... 3-1 Table 5-1. Points Applied to Regional Project Locations ............................................................ 5-7 Table 5-2. Points Applied to Parcel-Based Project Locations ..................................................... 5-8 Table 5-3. Points Applied to Green Street (in the ROW) Project Locations ............................... 5-9 Table 5-4: Selected Projects for Water Quality Benefit Quantification .................................... 5-13 Table 5-5. Marin County Gauges Mean Annual Rainfall .......................................................... 5-18 Table 5-6. Land Use Based Assumptions Used
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