Admin Draft July 2017 THE OC PLAN. Integrated Regional Water Management for the North and Central Orange County Watershed Management Areas

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2 Admin Draft July 2017 THE OC PLAN Integrated Regional Water Management for the North and Central Orange County Watershed Management Areas Public Review Draft November 7, 2017

3 The OC Plan Contacts County of Orange Orange County Watersheds Orange County Department of Public Works 2301 N. Glassell Street Orange, California Orange County Water District Ward Street Fountain Valley, California (714) Orange County Sanitation District Ellis Avenue Fountain Valley, California (714)

4 TABLE OF CONTENTS TABLE OF CONTENTS... TOC-1 LIST OF ACRONYMS... AC-1 1 REGIONAL PLANNING, OUTREACH, GOVERNANCE AND COORDINATION Introduction History of Integrated Regional Water Management Planning in the North and Central Orange County Watershed Management Areas Governance IRWM Plan Development IRWM Plan Development Process IRWM Plan Adoption Regional Water Management Group Advisory Committee to the Regional Water Management Group Planning Group Stakeholders Group Ad Hoc Working Groups Roles and Responsibilities for Regional Water Management Jurisdictional Participants in the IRWM Region Additional Organization Outreach and Participation in the IRWM Region Framework for Decision Making Appropriateness of Region and Geographic Boundaries Watershed Management Challenges Plan Focus Outreach Coordination REGION DESCRIPTION North and Central Orange County IRWM Region Watersheds, Adjoining IRWM Regions and Overlapping Efforts North Orange County Watershed Management Area Anaheim Bay-Huntington Harbor Watershed Lower San Gabriel River/Coyote Creek Watershed Santa Ana River Watershed Central Orange County Watershed Management Area Newport Bay Watershed Newport Coast Watershed Integrated Watershed Management in Region Social and Culture Economic Conditions Water Supplies Groundwater Imported Water Recycled Water Projected Water Supplies Potential New or Expanded Water Supplies Projected Water Demands TOC-1

5 2.1.8 Water Related Objectives and Conflicts Water Quality Jurisdictional Boundaries Open Space and Land Use Parks, Forests, Refuges, and Areas of Special Biological Significance Ecosystem Processes, Habitat and Vegetation Geology and Hydrology Soils Biological Resources Wildlife Climate Change Impacts on Region GOALS, OBJECTIVES, AND STRATEGIES Regional Vision, Mission and Goals Methodology for Determining Goals and Objectives Water Management Issues in Objective Areas Water Supplies Water Quality Ecosystems and Native Habitat Flood Management Quality of Life in Orange County Climate Change Regional Goals Objectives and Strategies Prioritization and Weighting of Objectives Benefits of Integration to Meet Objectives Potential Climate Change Impacts Considered in Objectives REGIONAL WATER MANAGEMENT Process to Consider Resource Management Strategies Resource Management Strategies Applicable to the Region Resource Management Strategies Not Applicable to the Region Regional Strategies Provide Adequate and Reliable Water Supplies Strategies Protect and Enhance Water Quality Strategies Restore Ecosystems and Improve Native Habitat Strategies Integrate Flood Management Strategies Improve the Quality of Life in Orange County Strategies Address Climate Change Strategies Impacts and Benefits Regional and Inter-Regional Benefits DAC/Environmental Justice Benefits Environmental Impacts and Benefits to Other Resources PROJECTS Project Solicitation and Prioritization Framework Ranking Criteria Development Regional/Local Objectives Weighting TOC-2

6 5.3 Contribution to State Agency Priorities The OC Plan and State Agency Priorities Project Integration IMPLEMENTATION Introduction Finance Funding Data Management Data Collection and Needs Within the Region Data Gaps Data Management System and Dissemination State Data Management Programs Plan Performance and Monitoring Plan Implementation and Performance Through Measurable Objectives Adaptive Management and Climate Change TABLES Table 1-1: Jurisdictional North and Central OC IRWM Region Members Table 2-1: OCWD Monitoring Programs for the Orange County Basin Table 2-2: Orange County Basin Water Budget Future Projection Average Rainfall Table 2-3: North and Central OC Targeted New Water Supplies Table 2-4: North and Central OC Local (Non-Imported) Potable Water Supply by Water Agency Table 2-5: North and Central OC Local Non-Potable (Recycled) Supply Projections Table 2-6: North and Central OC Water Demand Projections by Basin Region Table 2-7: Beneficial Uses of Water Bodies in North and Central OC WMA Table 2-8: Definition of Beneficial Uses of Water Table 2-9: 2012 Clean Water Act Section 303(d) List of Water Quality Limited Segments Requiring TMDLs in the North and Central OC WMAs Region Table 2-10: Untreated Groundwater Quality in OCWD Service Area Table 2-11: Federal, State and Local Agencies with Jurisdiction in the IRWM Region Table 2-12: Climate Change Vulnerability Assessment: Prioritized Issues in the Region Table 2-13: IRWM Plan Standards: Climate Change Table 2-14: Projected Effects of Climate Change on the Region by 2050 and Table 3-1: Statewide Priorities Table 3-2: Statewide Priorities Relevant to North and Central OC IRWM Region Table 3-3: Statewide Resource Management Strategies Relevant to North and Central OC IRWM Region Table 4-1: CWP Update 2013 Resource Management Strategies Table 4-2: Relation of RMS to The OC Plan Regional Objectives Table 5-1: Basis for Goals and Strategies Weighting and Scoring for Project Prioritization TOC-3

7 FIGURES Figure 1-1: North and Central OC Watershed Management Areas Figure 1-2: The OC Plan Governance Figure 2-1: North and Central OC IRWM Region and Regional Location Figure 2-2: Watersheds in the IRWM Region Figure 2-3: Primary Topographic Features Figure 2-4: North OC Watershed Management Area Location Figure 2-5: North OC Watersheds Figure 2-6: Santa Ana River Watershed Figure 2-7: Central OC Watershed Management Area Location Figure 2-8: Central OC Watersheds Figure 2-9: Surface Waterbodies Figure 2-10: Disadvantaged Communities Figure 2-11: Basin 8-1 Basin Boundary Figure 2-12: Basin 8-1 Management Areas Figure 2-13: Major Water Systems Infrastructure Figure 2-14: Wastewater Boundaries and Transmission Lines Figure 2-15: Regional Water Quality Control Boards Figure 2-16: Impaired Water Bodies Figure 2-17: Production Wells with Arsenic and Perchlorate Concentrations Above the MCL Figure 2-18: Areas of Nitrate-N Above the MCL Figure 2-19: Flood Control Infrastructure Figure 2-20: City and Unincorporated Jurisdictional Boundaries Figure 2-21: OCWD and MWDOC Jurisdictional Boundaries Figure 2-22: Water Agencies Cities and Water Districts Figure 2-23: Land Use Figure 2-24: Areas of Special Biological Significance Figure 2-25: Habitat and Vegetation Figure 2-26: Potential and Observed Climate Change Impacts on Water Resources in California Figure 3-1: The OC Plan Goals Figure 6-1: Data Management APPENDICES Appendix A: Resolutions/Letters of IRWM Plan Adoption/Acceptance/Support (will be completed in early 2018) Appendix B: Basin 8-1 Alternative ( Appendix C: Orange County Stormwater Resource Plan ( Appendix D: The OC Plan Project List (will be developed in early 2018) Appendix E: Weighting of Goals and Strategies Appendix F: Project Solicitation Notice and Application Form (under development) Appendix G: Ranking and Prioritization of Goals and Strategies TOC-4

8 List of Acronyms Subsection AB Assembly Bill ACOE Army Corps of Engineers AF Acre Feet AFY Acre Feet per Year AMP Allen-McColloch Pipeline ASBS Areas of Special Biological Significance BMP Best Management Practice BP Before Present CalWEP California Water Efficiency Partnership CARB California Air Resources Board CASGEM California Statewide Groundwater Evaluation Monitoring CAT Climate Action Team CCA Critical Coastal Area CCWMP Coyote Creek Watershed Management Plan CDFG California Department of Fish and Game (now CDFW) CDFW California Department of Fish and Wildlife CEDEN California Environmental Data Exchange Network CEQA California Environmental Quality Act cfs Cubic Feet per Second CRA Colorado River Aqueduct CWA Clean Water Act CWC California Water Code CWP California Water Plan DAC Disadvantaged Communities DAMP Drainage Area Management Plan DMM Demand Management Measures DMS Data Management System DRPP Demand, Runoff, and Pollution Prevention DWR Department of Water Resources EDA Economically Distressed Areas EIR Environmental Impact Report AC-1

9 EIS EWMP EPA ET ETWD FEMA GAMA GIS GHG GMZ GSP GSWC GWRS HCP IPCC IRP IRWD IRWM LID LIP LAWRP LRP MAF MEP MCL MGD mg/l MHI MOU MPA MS4 MSAA MWDOC Environmental Impact Statement Efficient Water Management Practices Environmental Protection Agency Evapotranspiration El Toro Water District Federal Emergency Management Agency Groundwater Ambient Monitoring and Assessment Geographic Information System Greenhouse Gas Groundwater Management Zone Groundwater Sustainability Plan Golden State Water Company Groundwater Replenishment System Habitat Conservation Plan Intergovernmental Panel on Climate Change Integrated Water Resources Plan Irvine Ranch Water District Integrated Regional Water Management Low-Impact Development Local Implementation Plan Los Alisos Water Reclamation Plant Local Resources Program Million Acre Feet Maximum Extent Practicable Maximum Contaminant Level Million gallons per day Milligrams Per Liter Median Household Income Memorandum of Understanding Marine Protected Area Municipal Separate Storm Sewer System Master Streambed Alteration Agreement Municipal Water District of Orange County AC-2

10 MWRP NCC NCCP NEPA NGO NPDES NRCS NROC O&M OC OCFCD OCSD OCSP OCWD OCPW OPR PBDE PCB POTW ppb QA/QC RMS ROWD RWMG RWQCB SAMP SAR SARWQCB SAWPA SB SCAG SCCWRP SCSC Michelson Water Reclamation Plant Natural Communities Coalition Natural Communities Conservation Plan National Environmental Policy Act Non-Governmental Organization National Pollutant Discharge Elimination System Natural Resource Conservation Service Nature Reserve of Orange County Operations and Maintenance Orange County Orange County Flood Control District Orange County Sanitation District Orange County Stormwater Program Orange County Water District Orange County Public Works Department Office of Planning and Research Polybrominated Diphenyl Ethers Polychlorinated Biphenyls Publicly Owned Treatment Works Parts Per Billion Quality Assurance/Quality Control Resource Management Strategies Report of Wastewater Discharge Regional Watershed Management Group Regional Water Quality Control Board Special Area Management Plan Santa Ana River Santa Ana Regional Water Quality Control Board Santa Ana Watershed Project Authority Senate Bill Southern California Association of Governments Southern California Coastal Water Research Project Southern California Salinity Coalition AC-3

11 SDP SGMA SFHA SMC SNMP SOCWA SRF SWAMP SWRCB SWP SWRP TDS TIN TMDL TMP USACE USBR USDA USGS UWMP VOC WDL WDR WIHMP WMA WMP WQMP WUE Seawater Desalination Program Sustainable Groundwater Management Act Special Flood Hazard Area Stormwater Monitoring Coalition Salt and Nutrient Management Plan South Orange County Wastewater Authority State Revolving Fund Surface Water Ambient Monitoring Program State Water Resources Quality Control Board State Water Project Stormwater Resource Plan Total Dissolved Solids Total Inorganic Nitrogen Total Maximum Daily Load Trash Management Plan United States Army Corps of Engineers (The Corps) United States Bureau of Reclamation United States Department of Agriculture United States Geological Survey Urban Water Management Plan Volatile Organic Compound Water Data Library Waste Discharge Requirement Watershed Infiltration and Hydromodification Management Plan Watershed Management Area Watershed Management Plan Water Quality Management Plan Water Use Efficiency AC-4