The San Jacinto Watershed Component of the Santa Ana Integrated Watershed Plan
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The San Jacinto Watershed Component of the Santa Ana Integrated Watershed Plan IRWM Plan Proposal for Integrated Regional Water Management Prop 50, Chapter 8 Planning Grant Application May 11, 2005 Submitted by: San Jacinto River Watershed Council Table of Contents ACRONYMS 5 A. BACKGROUND 7 Chapter 1 Executive Summary - Proposal Introduction and Objectives 7 Section 1 - Summary of Proposed Planning Grant Proposal 7 Section 2 - Why a Focused Component Plan? 9 Section 3 - Why Support This Proposal? 9 Chapter 2 - Regional Agency or Regional Water Management Group Description 11 Section 1 - Lead Agency 11 Section 2 - Funding Partners 11 Section 3 - Other Interested and Supporting Stakeholders 11 Section 4 - Plan for Adopting a Final Plan 12 Section 5 - Entities to Adopt Final Plan 12 Chapter 3 – Watershed Background 14 Section 1 - Overview of Project and Watershed Area 14 Section 2 - Physiographic Characteristics 16 Section 3 - Major Watershed Features 17 Gavilan Hills 19 Steele Peak 19 Motte-Rimrock Reserve 19 Section 4 - Internal Boundaries within the Region 21 Section 5 - Major Flood Control Infrastructure 21 Section 6 - Major Land Use Divisions 24 Section 7 - Description of Water Resources 26 Section 8 – Hydrometeorological Characteristics 29 Section 9 - Surface Water Quality 31 Section 10 - Water Supplies – Quantity and Quality 36 Section 11 - Areas of Special Biological Significance and other Sensitive Habitat 41 Section 12 - Values, Social and Cultural Makeup and Trends of the Regional Community 44 Section 13 - Economic Conditions and Disadvantaged Community Status 46 Section 14 - Trends 49 Section 15 - Benefits of Planning for this Region 49 Chapter 4 – Planning Objectives and Major Water Related Issues and Conflicts 51 Section 1 – Planning Objectives 51 Section 2 - Major Water Related Issues and Conflicts 51 Chapter 5 - Integration of Water Management Strategies 55 Section 1 - Water Management Strategies 55 Section 2 - Strategies to be Considered 55 Section 3 - How Strategies were Determined 57 Chapter 6 - Implementation 58 Section 1 –General San Jacinto Component Plan Implementation Scheduling 58 Section 2 – Specific Drivers for SJ Component Plan Implementation 58 Section 3 – Institutional Structure to ensure SJ Component Plan implementation 58 Section 4 – Adaptive Management of the San Jacinto Component Plan 59 Section 5 - NPS Pollution Control Activities 59 2 Program Goals: 60 Chapter 7 - Impacts and Benefits 61 Section 1 - Potential Impacts and Benefits of Plan Development and Implementation 61 Section 2- Description of Potential Impacts 61 Section 3 - CEQA Compliance 62 Chapter 8 - Data and Technical Analysis 63 Section 1 - Plan Development Support Data 63 Chapter 9 - Data Management 66 Section 1- Dissemination of Data 66 Section 2 - Support of Statewide Data Needs 66 Support of SWRCB Statewide Data Management Efforts 66 Chapter 10 - Stakeholder Involvement 67 Section 1- Incorporation of Stakeholder Involvement 67 Section 2 - Outreach 68 Section 3 - Proposed Stakeholders 68 Chapter 11 -Disadvantaged Communities 74 Section 1 - Extent of Disadvantaged Communities 74 Section 2 – Water Supply and Water Quality needs of Disadvantaged Communities 74 Section 3 - Benefits to Disadvantaged Communities 74 Section 4 - Involvement in Planning Process 74 Chapter 12 - Relation to Local Planning 74 Section 1 – Overview and Relation to local planning documents 74 Section 2 – Dynamics between local planning and San Jacinto Component Plan planning processes. 75 Chapter 13 - Agency Coordination 75 Section 1 - Coordination and Cooperation with Relevant Local, State and Federal Regulatory Agencies 75 Section 2 - Coordination with Local Land-Use Planning Decision-Makers 76 B - WORKPLAN 77 Task 1: Project Initiation (January 2006 through March 2006) 77 Task 2:Stakeholder Meetings & SJ Component IRWM Scope Refinement (February 2006-April 2006) 78 Task 3:Watershed Data Inventory (January 2006-April 2006) 79 Task 4: Specific Watershed Analyses (April 2006- July 2007) 80 Task 5: Development of General Watershed Strategies and Programs (April 2006 – July 2007) 83 Task 6: Draft Component Watershed Management Plan Development (January 2007 – September 2007) 84 Task 7: Finalization and Implementation/Adoption of Plan (September 2007- January 2008) 85 Task 8: Interim and Final Progress Reports (January 2006 – January 2008) 85 Task 9: Project Administration (January 2006-January 2008) 85 3 C. BUDGET 87 Funding Match Detail: 88 D. SCHEDULE 90 E. EXISTING SJRWC WATERSHED PLAN OUTLINE 91 Figures FIGURE 1 – LOCATION OF PROPOSED PLANNING PROJECTS WITHIN THE SAN JACINTO WATERSHED 8 FIGURE 2 - SAN JACINTO RIVER WATERSHED BOUNDARY 15 FIGURE 3 – RIVERSIDE COUNTY INTEGRATED PLAN PLANNING AREAS 18 FIGURE 4 – CITIES AND MAJOR COMMUNITIES WITHIN THE SAN JACINTO WATERSHED. 22 FIGURE 5 – WATER AGENCIES AND WASTEWATER AGENCIES WITHIN THE SAN JACINTO WATERSHED (BLUE BOUNDARY) 23 FIGURE 6 - LAND USE IN THE SAN JACINTO WATERSHED (SJNMP, TETRATECH, 2004) 25 FIGURE 7 - MAJOR WATER RESOURCES FEATURES IN THE WATERSHED. (SJNMP, TETRATECH, APRIL 2004) 27 FIGURE 8 – SAN JACINTO WATERSHED AVERAGE RAINFALL AND EVAPORATIVE LOSS 30 FIGURE 9 – GROUNDWATER BASINS IN THE SAN JACINTO WATERSHED (BLUE BOUNDARY) 37 FIGURE 10 – LAND USES IN THE SAN JACINTO WATERSHED 47 Tables TABLE 1 – LAND USE WITHIN THE SAN JACINTO WATERSHED (SJNMP, TETRATECH, 2004) 26 TABLE 2 – BENEFICIAL USES FOR LAKES AND RESERVOIRS IN THE SAN JACINTO RIVER WATERSHED 32 TABLE 3 – BENEFICIAL USES OF INLAND SURFACE STREAMS IN THE SAN JACINTO 33 TABLE 4 – CANYON LAKE AND LAKE ELSINORE TMDL TARGETS AND ACTUAL 34 CONCENTRATIONS 34 TABLE 5 – TMDL HYDROLOGIC CONDITION EXAMPLES 35 TABLE 6 – SAN JACINTO WATERSHED GROUNDWATER BASIN BENEFICIAL USES 38 TABLE 7 - DISADVANTAGED COMMUNITIES WITH THE SAN JACINTO WATERSHED 48 4 ACRONYMS AF acre-feet BMPs best management practices CAFO Confined Animal Feeding Operation CDFG Department of Fish and Game CDP Census Designated Places CETAP Community and Environmental Transportation Accessibility Process CEQA California Environmental Quality Act CL Canyon Lake CWA Clean Water Act DWR Department of Water Resources EMWD Eastern Municipal Water District EVMWD Elsinore Valley Municipal Water District GIS Geographic Information System HCP Habitat Conservation Plan IRWM Integrated Regional Watershed Management Plan IWP SAWPA’s Integrated Watershed Plan LE Lake Elsinore LESJWA Lake Elsinore San Jacinto Watershed Authority MSHCP Multi-Species Habitat Conservation Plan MS4 Municipal Separate Storm Sewer System MWD Metropolitan Water District NEPA National Environmental Policy Act NMP Nutrient Management Plan NPDES National Pollutant Discharge Elimination System NPS Non-point source RCD Resource Conservation District RCFC&WCD Riverside County Flood Control & Water Conservation District RWQCB Regional Water Quality Control Board SAMP Special Area Management Plan for the Santa Margarita and San Jacinto Watersheds SARWQCB Santa Ana Region Regional Water Quality Control Board SAWA Santa Ana Watershed Association of RCDs SAWPA Santa Ana Watershed Project Authority SJBRCD San Jacinto Basin RCD SJNMP San Jacinto Nutrient Management Plan SJPMP San Jacinto Pathogen Management Plan SJRWC San Jacinto River Watershed Council SWRCB State Water Resources Control Board TMDL Total Maximum Daily Loads TN total nitrogen TP total phosphorous TDS total dissolved solids UCR University of California, Riverside USACE United States Army Corps of Engineers 5 USBR United States Bureau of Reclamation USDA United States Department of Agriculture USEPA United States Environmental Protection Agency USFWS United States Fish and Wildlife Service WMI California State University, San Bernardino Water Management Institute WRCAC Western Riverside County Agriculture Coalition WMWD Western Municipal Water District WY water years 6 San Jacinto Component Plan of the Santa Ana Integrated Watershed Plan Planning Grant Proposal Authorized Under Proposition 50 Chapter 8 A. BACKGROUND Chapter 1 Executive Summary - Proposal Introduction and Objectives Section 1 - Summary of Proposed Planning Grant Proposal This grant proposal requests $500,000 to develop a focused component of the Santa Ana Watershed Project Authority’s (SAWPA) Santa Ana Integrated Watershed Plan (SAWPA IWP) specific to the 732 square mile San Jacinto Watershed. The focused component will build on the significant work done by the broader SAWPA IWP with regards to groundwater, surface water, reclaimed water and desalter water management. Specifically, this proposal would initiate a number of specific studies to develop implementation plans for: • Watershed and Waterbody water quality data collection • Lake Elsinore and Canyon Lake Nutrient and Canyon Lake Pathogen TMDLs • San Jacinto River Reach 4 Gap Analysis to address competing water quality, agriculture, water supply, habitat and flood control needs within this upper watershed area. • Septic System Management Plan In addition, the proposal includes funds to support: • Stakeholder involvement to identify (and fund) additional planning studies likely to focus on: o groundwater and/or reclaimed water management in order to reduce reliance on imported water supplies and to address a potential water supply deficiency during drought conditions in 2025 o Development of a integrated public education program focusing on watershed protection and management. Components for disadvantaged communities will specifically be considered. o Analysis of a complex flood management, critical habitat conservation, wetlands enhancement