San Luis & Delta-Mendota Water Authority 2019 Westside-San Joaquin Integrated Regional Water Management Plan January 2019 Prepared by: The 2019 Westside-San Joaquin Integrated Regional Water Management Plan was funded in part under the Water Quality, Supply, and Infrastructure Improvement Act of 2014 (Proposition 1), administered by the State of California, Department of Water Resources. 2019 Westside-San Joaquin Integrated Regional Water Management Plan Table of Contents Final Table of Contents Chapter 1 Governance ............................................................................................................................ 1-1 1.1 Regional Water Management Group ............................................................................................ 1-1 1.2 History of IRWM Planning ............................................................................................................. 1-4 1.3 Governance ................................................................................................................................... 1-5 1.4 Coordination ................................................................................................................................. 1-8 1.5 WSJ IRWMP Adoption, Interim Changes, and Future Updates .................................................. 1-11 Chapter 2 Region Description ................................................................................................................. 2-1 2.1 IRWM Regional Boundary ............................................................................................................. 2-1 2.2 Quality and Quantity of Water Resources .................................................................................. 2-15 2.3 Water Supplies and Demands ..................................................................................................... 2-26 2.4 Social and Cultural Makeup ........................................................................................................ 2-34 2.5 Climate Change Impacts ............................................................................................................. 2-40 2.6 Dependency on the Sacramento-San Joaquin Delta .................................................................. 2-41 Chapter 3 Goals and Objectives .............................................................................................................. 3-1 3.1 Region’s Objectives ....................................................................................................................... 3-1 3.2 Regional Priorities ......................................................................................................................... 3-9 Chapter 4 Resource Management Strategies ......................................................................................... 4-1 4.1 Climate Change Considerations for the Region ............................................................................ 4-5 4.2 Agricultural Water Use Efficiency ................................................................................................. 4-5 4.3 Urban Water Use Efficiency .......................................................................................................... 4-6 4.4 Conveyance – Delta ...................................................................................................................... 4-6 4.5 Conveyance – Regional/Local ....................................................................................................... 4-7 4.6 System Reoperation ...................................................................................................................... 4-7 4.7 Water Transfers ............................................................................................................................ 4-8 4.8 Conjunctive Management and Groundwater ............................................................................... 4-8 4.9 Desalination – Brackish and Seawater .......................................................................................... 4-9 4.10 Precipitation Enhancement ....................................................................................................... 4-9 4.11 Recycled Municipal Water ......................................................................................................... 4-9 4.12 Surface Storage – CALFED ........................................................................................................ 4-10 January 2019 i 2019 Westside-San Joaquin Integrated Regional Water Management Plan Table of Contents Final 4.13 Surface Storage – Regional/Local ............................................................................................ 4-10 4.14 Drinking Water Treatment and Distribution ............................................................................ 4-10 4.15 Groundwater and Aquifer Remediation .................................................................................. 4-10 4.16 Matching Quality to Use .......................................................................................................... 4-11 4.17 Pollution Prevention ................................................................................................................ 4-11 4.18 Salt and Salinity Management ................................................................................................. 4-11 4.19 Urban Runoff Management ..................................................................................................... 4-12 4.20 Agricultural Land Stewardship ................................................................................................. 4-12 4.21 Economic Incentives (Loans, Grants, and Water Pricing) ........................................................ 4-12 4.22 Ecosystem Restoration ............................................................................................................. 4-13 4.23 Forest Management ................................................................................................................. 4-13 4.24 Land Use Planning and Management ...................................................................................... 4-13 4.25 Recharge Area Protection ........................................................................................................ 4-13 4.26 Water-Dependent Recreation .................................................................................................. 4-14 4.27 Sediment Management ........................................................................................................... 4-14 4.28 Watershed Management ......................................................................................................... 4-14 4.29 Flood Management .................................................................................................................. 4-15 4.30 Water and Culture and Outreach and Engagement ................................................................ 4-15 4.31 Other Strategies ....................................................................................................................... 4-15 Chapter 5 Integration ............................................................................................................................. 5-1 Chapter 6 Project Solicitation and Prioritization .................................................................................... 6-1 6.1 Project Solicitation and Review .................................................................................................... 6-1 6.2 Project Integration, Prioritization, and Project List Updates ........................................................ 6-3 6.3 Impacts and Benefits .................................................................................................................... 6-8 Chapter 7 Plan Performance and Monitoring ........................................................................................ 7-1 7.1 Project Monitoring ........................................................................................................................ 7-1 7.2 Plan Implementation Monitoring ................................................................................................. 7-2 7.3 Project Implementation to Date through IRWM Grant Program ................................................. 7-4 Chapter 8 Data Management ................................................................................................................. 8-1 8.1 Data Needs .................................................................................................................................... 8-1 8.2 Data Collection, Maintenance, and Dissemination....................................................................... 8-2 January 2019 ii 2019 Westside-San Joaquin Integrated Regional Water Management Plan Table of Contents Final Chapter 9 Financing ................................................................................................................................ 9-1 9.1 IRWM Planning Financing ............................................................................................................. 9-1 9.2 Project Financing ........................................................................................................................... 9-1 Chapter 10 Technical Analysis ...........................................................................................................