Final Environmental Impact Report

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3 Final Environmental Impact Report TIJUANA RIVER VALLEY WETLANDS MITIGATION PROJECT for the SAN DIEGO COUNTY WATER AUTHORITY State Clearinghouse Number Prepared for: San Diego County Water Authority 4677 Overland Avenue San Diego, California Contact: Don Chadwick (858) Prepared by: 605 Third Street Encinitas, California (760) DECEMBER 2008

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5 Table of Contents TABLE OF CONTENTS Section Page No. ACRONYMS AND ABBREVIATIONS...v EXECUTIVE SUMMARY...ES-1 ES-1 Project Objectives...ES-1 ES-2 Project Overview...ES-2 ES-3 Areas of Known Controversy...ES-3 ES-4 Issues to be Resolved...ES-3 ES-5 Project Alternatives...ES-4 ES-6 Summary of Environmental Impacts, Mitigation Measures and Level of Significance after Mitigation...ES INTRODUCTION Project Background Purpose and Use of the EIR Scoping Process Document Organization Incorporation by Reference Availability of the EIR PROJECT DESCRIPTION Project Location and Environmental Setting Project Objectives Project Characteristics General Conditions / Standard Specifications and Project Design Features Discretionary Actions and Approvals ENVIRONMENTAL ANALYSIS Agricultural Resources Recreation Water Resources Biological Resources Cultural Resources Geology and Soils Tijuana River Valley i December 2008

6 Table of Contents TABLE OF CONTENTS Section Page No. 4.0 CUMULATIVE IMPACTS Introduction Cumulative Projects Cumulative Impact Analysis GROWTH INDUCING EFFECTS OTHER MANDATORY CONSIDERATIONS Effects Not Found to Be Significant Unavoidable Significant Effects PROJECT ALTERNATIVES Introduction Alternatives Considered but Rejected Alternatives Under Consideration Alternatives Summary and Environmentally Superior Alternative ORGANIZATIONS AND PERSONS CONSULTED LIST OF PREPARERS Lead Agency San Diego County Water Authority Environmental Consultant/EIR Preparation Dudek Technical Report Preparation REFERENCES APPENDICES (BOUND SEPARATELY) Appendix A Appendix B Appendix C Appendix D Appendix E Appendix F Appendix G Scoping Report Conceptual Wetlands Mitigation Plan Land Evaluation Site Assessment (LESA) Model Worksheets Hydrology and Water Quality Studies Biological Resources Reports Cultural Resources Report Phase I Environmental Site Assessment and Hazardous Materials Letters Tijuana River Valley ii December 2008

7 Table of Contents TABLE OF CONTENTS (Cont.) Page No. LIST OF FIGURES 2-1 Regional Map Vicinity Map Site Photographs Site Photographs Surrounding Uses Conceptual Mitigation Design Conceptual Mitigation Acreage Layout Berm Extension Site CA Department of Conservation Farmlands TRVRP Formal Trails Network TRNERR Trails Network Year Floodplain Biological Resources Berm Extension Site Vegetation Jurisdictional Wetlands On-Site Soils Cumulative Projects Land Use Jurisdictions Zoning Map Proposed Project Site and Alternatives LIST OF TABLES ES-1 ES-2 Summary of Alternatives' Impacts...ES-6 Summary of Environmental Impacts and Mitigation Measures...ES Acreage Summary Net Mitigation Credits Potential Discretionary Actions and Approvals Tijuana River Valley iii December 2008

8 Table of Contents TABLE OF CONTENTS (Cont.) Page No (d) List of Impaired Water Permanent and Temporary Habitat Impacts (Acres) Vegetation Communities and Land Covers Impacted by the Berm Extension Mitigation Summary Permanent Direct Impacts and Required Mitigation Cumulative Projects Considered Construction GHG Emissions Operational GHG Emissions Summary of Alternatives' Impacts Tijuana River Valley iv December 2008

9 ACRONYMS AND ABBREVIATIONS Acronyms and Abbreviations AAQS AB ACOE AEP ALUCP AMSL APCD ARB ASMD BGS BMP CAFE CalEPA CAPCOA CARB CBP CCC CCT CDC CDFG CEQA CNPS CPUC CSP CWA DEH DHS EIR EPA ESL ESP FMMP GAO GHG Ambient Air Quality Standards Assembly Bill Army Corps of Engineers Association of Environmental Professionals Airport Land Use Compatibility Plan Above Mean Sea Level Air Pollution Control District Air Resources Board Area Specific Management Directives Below Ground Surface Best Management Practice Federal Corporate Average Fuel Economy Standards California Environmental Protection Agency California Air Pollution Control Officers Association California Air Resources Board U.S. Customs and Border Protection California Coastal Commission California Coastal Trail California Department of Conservation California Department of Fish and Game California Environmental Quality Act California Native Plant Society California Public Utilities Commission Carryover Storage Project Clean Water Act Department of Environmental Health Department of Homeland Security Environmental Impact Report Environmental Protection Agency Environmentally Sensitive Lands Emergency Storage Project Farmland Mapping and Monitoring Program General Accounting Office Greenhouse Gas Tijuana River Valley v December 2008

10 ACRONYMS AND ABBREVIATIONS Acronyms and Abbreviations GSA GWP HA HSA HMMD HMP HU IBWC LESA LOS LCFS MBTA MHPA MMRP MS4 MSCP MWD NAHC NCCP NEPA NOP NOI NOLF NPDES POE RAQS RPW RWQCB RPS SANDAG SBIWTP SBWRP General Services Administration Global Warming Potential Hydrologic Area Hydrologic Subarea Hazardous Materials Management Division Habitat Management Plan Hydrologic Unit International Boundary and Water Commission Land Evaluation and Site Assessment Level of Service Low Carbon Fuel Standard Migratory Bird Treaty Act Multi Habitat Planning Area Mitigation, Monitoring, and Reporting Program Municipal Separate Storm Sewer System Multiple Species Conservation Program Metropolitan Water District of Southern California Native American Heritage Commission Natural Communities Conservation Program National Environmental Policy Act Notice of Preparation Notice of Intent Naval Outlying Field National Pollutant Discharge Elimination System Port of Entry Regional Air Quality Strategies Relatively Permanent Waters Regional Water Quality Control Board Renewable Portfolio Standards San Diego Association of Governments South Bay International Wastewater Treatment Plant South Bay Water Reclamation Plant Tijuana River Valley vi December 2008

11 ACRONYMS AND ABBREVIATIONS Acronyms and Abbreviations SBOO SCIC SDAB SDSU SIP SLF SUSMP SWAS SWMP SWRCB SWPPP TCMs TDS TETRP TMDL TNW TRNERR TRVRP UNFCCC USEPA USFWS WOUS YBP South Bay Ocean Outfall South Coastal Information Center San Diego Air Basin San Diego State University State Implementation Plan Sacred Lands File Standard Urban Storm Water Municipal Plan Storm Water Sampling and Analysis Strategy Storm Water Management Plan State Water Resources Control Board Storm Water Pollution Prevention Plan Transportation Control Measures Total Dissolved Solids Tijuana Estuary Tidal Restoration Project Total Maximum Daily Load Traditionally Navigable Waters Tijuana River National Estuarine Research Reserve Tijuana River Valley Regional Park United Nations Framework Convention on Climate Change United States Environmental Protection Agency United States Fish and Wildlife Service Waters of the U.S. Years Before Present Tijuana River Valley vii December 2008

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