Alameda Countywide Clean Water Program Stormwater Resource Plan
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ALAMEDA COUNTYWIDE CLEAN WATER PROGRAM STORM WATER RESOURCE PLAN MEMBER AGENCIES: Alameda Albany PUBLIC RELEASE Berkeley Dublin DRAFT Emeryville Fremont Hayward Livermore Newark Oakland Piedmont Pleasanton San Leandro Union City County of Alameda Alameda County Flood Control and Water Conservation District Zone 7 Water Agency October 2018 Table of Contents Table of Contents ..................................................................................................................... 2 1. Introduction ...................................................................................................................... 5 1.1 Purpose of the Plan .................................................................................................... 5 1.2 Alameda County’s Watersheds: Approach and Characterization ................................ 5 1.3 Water Quality Issues And Regulatory Requirements .................................................. 5 1.4 Organization of the SWRP .......................................................................................... 6 2. Coordination and Collaboration ...................................................................................... 7 2.1 Entities Involved in Plan Development ........................................................................ 7 2.2 Coordination of Cooperating Entities and Stakeholders .............................................. 7 2.3 Relationship with Existing Planning Documents .......................................................... 7 2.3.1 San Francisco Bay Area Integrated Regional Water Management Plan ................. 7 2.3.2 Other Plans ............................................................................................................. 7 3. Alameda Watersheds Characterization .......................................................................... 9 3.1 SWRP Area ................................................................................................................ 9 3.2 Alameda County Water Suppliers ..............................................................................13 3.3 Watersheds Characterizations ...................................................................................18 3.3.1 Western Alameda County Watersheds ..................................................................20 Alameda Creek Watershed ................................................................................29 Eastern Alameda County Watersheds ...............................................................37 4. Water Quality Concerns and Regulatory Requirements .............................................. 42 4.1 Pollutant Generating Activities ...................................................................................42 4.2 Pollutants of Concern ................................................................................................42 4.2.1 Applicable Permits and TMDLs ..............................................................................43 4.3 Alameda County Water Quality Compliance Strategies and the SWRP .....................46 5. Identification, Quantification of Multiple Benefits, and Prioritization of Projects ...... 49 5.1 Overview of Approach ...............................................................................................49 5.2 Identification of Project Opportunities ........................................................................50 5.2.1 Planned Project Opportunities ...............................................................................50 5.2.2 Potential Project Opportunities ...............................................................................50 5.3 Project Classification .................................................................................................52 5.3.1 Green Infrastructure Projects .................................................................................52 5.3.2 Infiltration Feasibility ..............................................................................................52 5.3.3 Facility Type ..........................................................................................................53 PUBLIC DRAFT SWRP 2 October 2018 Alameda Countywide Clean Water Program 5.3.4 Project Drainage Area............................................................................................54 5.4 Identified Project Database ........................................................................................54 5.5 Metrics-Based Multi-Benefit Evaluation and Project Prioritization ..............................55 5.5.1 Multiple Benefit Evaluation .....................................................................................55 5.6 Prioritization of Scored Projects .................................................................................58 5.6.1 Prioritized List of Project Opportunities ..................................................................59 6. Education, Outreach, and Public Participation ............................................................ 60 6.1 Overview of Stakeholder Outreach and Coordination Strategy ..................................60 6.1.1 Purpose of the Stakeholder Outreach and Coordination Strategy ..........................60 6.1.2 Outreach Approach ................................................................................................60 6.1.3 Key Stakeholder Audiences ...................................................................................60 6.1.4 Matrix of Outreach Methods ...................................................................................61 6.2 Summary of Outreach Activities .................................................................................62 6.2.1 GI Work Group Meetings and Mailing List ..............................................................62 6.2.2 E-mail List and Targeted E-mail Messages ............................................................63 6.2.3 ACCWP SWRP Web Page ....................................................................................63 6.2.4 Social Media ..........................................................................................................63 6.2.5 Bay Area IRWM Group ..........................................................................................63 7. Implementation Strategy for SWRP .............................................................................. 65 7.1 SWRP Implementation ..............................................................................................65 7.1.1 Responsible Entities ..............................................................................................65 7.1.2 Implementation Schedule ......................................................................................65 7.1.3 Community Participation ........................................................................................66 7.2 Decision Support Tools for Plan Implementation .......................................................66 7.3 Project Implementation Tracking and Data Management ...........................................66 7.3.1 Tracking and Managing GI Projects .......................................................................67 7.3.2 Pollutant Load Reduction Accounting ....................................................................67 7.3.3 Reasonable Assurance Analysis ............................................................................67 7.4 Water Quality Monitoring ...........................................................................................68 7.4.1 ACCWP Monitoring Program .................................................................................68 7.4.2 Regional Monitoring Program ................................................................................69 7.5 Funding Needs ..........................................................................................................69 8. References ...................................................................................................................... 71 PUBLIC DRAFT SWRP 3 October 2018 Alameda Countywide Clean Water Program Appendix 1. Stormwater Resource Plan Checklist and Self Certification ....................... A1-1 Appendix 2. Project Request for Alameda Countywide Clean Water Program Stormwater Resource Plan ................................................................................................................... A2-1 Appendix 3. Alameda Countywide Clean Water Program Stormwater Resource Plan Outreach Strategy ............................................................................................................... A3-1 Appendix 4. Public Comment and Response Matrix ........................................................ A4-1 Appendix 5. Database of Prioritized Project Lists ............................................................ A5-1 PUBLIC DRAFT SWRP 4 October 2018 Alameda Countywide Clean Water Program 1. Introduction 1.1 PURPOSE OF THE PLAN The Alameda Countywide Clean Water Program (ACCWP) Storm Water Resource Plan (SWRP) was created to facilitate the identification, development and implementation of stormwater management projects and programs that provide multiple benefits including improved water quality, reduced localized flooding, increased water supplies for beneficial uses, and community enhancement. Pursuant to Senate Bill 985 (SB 985), a SWRP must be developed in order to receive grant funding for storm water and dry weather runoff capture projects from any voter-approved