San Diego County Water Authority Subregional Natural Community Conservation Plan/ Habitat Conservation Plan (NCCP/HCP) 2018 ANNUAL REPORT Prepared April 2019 SAN DIEGO COUNTY WATER AUTHORITY SUBREGIONAL NATURAL COMMUNITY CONSERVATION PLAN/ HABITAT CONSERVATION PLAN (NCCP/HCP) 2018 ANNUAL REPORT Prepared for: U.S. Fish and Wildlife Service and California Department of Fish and Wildlife Prepared by: San Diego County Water Authority and AECOM April 2019 TABLE OF CONTENTS Section Page ACRONYMS AND DEFINITIONS .............................................................................................. v CHAPTER 1.0 – INTRODUCTION .............................................................................................. 1 1.1 NCCP/HCP Background ......................................................................................... 1 1.1.1 Elements of the Plan and Implementing Agreement ...................................2 1.1.2 Plan Area Monitoring and Reporting ...........................................................3 1.2 Previous Revisions and Amendments to the Plan................................................... 5 1.3 Annual Report Summary ........................................................................................ 5 CHAPTER 2.0 – COVERED ACTIVITIES AND COMPLIANCE MONITORING ................... 9 2.1 CIP Covered Activities ........................................................................................... 9 2.1.1 Completed CIP Covered Activities ............................................................14 2.1.2 Ongoing CIP Covered Activities ...............................................................29 2.1.3 CIP Covered Activities Initiated during Reporting Period ........................29 2.2 Operation and Maintenance Covered Activities ................................................... 33 2.2.1 North County Distribution Pipeline Cathodic Protection (Q0206) ...........35 2.2.2 March 2018 Draindown (N0521/Q0207) ...................................................35 2.2.3 Tri-Agency Pipeline Blowoff Structure (Q0212) ......................................36 2.2.4 August 2018 Draindown (N0521) .............................................................36 2.2.5 ROW Tree Trimming and Removal ..........................................................36 2.3 Near-Term Planned Covered Activities and Other CIP Projects .......................... 36 2.3.1 Northern First Aqueduct Structures and Lining Rehabilitation (Q0204) ......................................................................................................38 2.3.2 Hauck Mesa Storage Tank Replacement (N0504) .....................................39 2.3.3 Mission Trails Flow Regulatory System II (C0603) (Existing Project) .......................................................................................................39 2.3.4 Emergency Water Storage Project North County Pump Stations and Associated Improvements (G1801, G1803, and G1804) (Existing Projects) ......................................................................................40 2.3.5 Future Planned CIP Covered Activities .....................................................40 CHAPTER 3.0 – MITIGATION AND EFFECTIVENESS/VALIDATION MONITORING ................................................................................................................. 43 3.1 Crestridge HMA.................................................................................................... 47 3.1.1 PAMP Development and Objectives .........................................................52 3.1.2 Management and Monitoring Activities ....................................................52 San Diego County Water Authority 2018 NCCP/HCP Annual Report Page i NCCP_Rpt_2018_65013.docx 4/5/2019 3.2 Rancho Cañada HMA ........................................................................................... 53 3.2.1 PAMP Development and Objectives .........................................................54 3.2.2 Management and Monitoring Activities ....................................................55 3.3 San Miguel HMA (Conservation Bank) ............................................................... 55 3.3.1 PAMP Development and Objectives .........................................................56 3.3.2 Management and Monitoring Activities ....................................................56 3.4 Manchester HMA.................................................................................................. 57 3.5 San Luis Rey River HMA ..................................................................................... 57 3.6 Tijuana River Valley HMA .................................................................................. 58 3.7 Funding ................................................................................................................. 58 CHAPTER 4.0 – PLAN UPDATES ............................................................................................. 61 4.1 General Plan Implementation Updates ................................................................. 61 4.2 Current Year Revisions and Amendments to the Plan ......................................... 62 4.3 Changed Circumstances ........................................................................................ 62 4.4 Unforeseen Circumstances.................................................................................... 62 4.5 Agency coordination and Clarifications ............................................................... 62 4.6 Funding Updates ................................................................................................... 63 CHAPTER 5.0 – COMPLIANCE WITH PREEXISTING BIOLOGICAL OPINIONS ............. 65 5.1 Emergency Water Storage Project (B.O. 1-6-97-F-13) ........................................ 65 5.2 Flow Regulatory Structure and Pipeline Tunnel at Mission Trails (B.O. 2007-B-14/2007-F-22) .......................................................................................... 66 5.3 Carryover Storage Project (B.O. 2008B0061-2008F0732) .................................. 67 CHAPTER 6.0 – REFERENCES ................................................................................................. 69 Page ii San Diego County Water Authority 2018 NCCP/HCP Annual Report NCCP_Rpt_2018_65013.docx 4/5/2019 APPENDICES A HMA Credit Ledger Sheets B Summary of Previous NCCP/HCP Revisions, Amendments, and Clarifications C Impacts to Covered Wildlife Species Resulting from CIP Covered Activities D Impacts to Covered Plant Species Resulting from CIP Covered Activities E Measures Implemented for Capital Improvement Program (CIP) Covered Activities F Measures Implemented for Operation and Maintenance (O&M) Covered Activities G Vegetation Communities / Land Cover Types and Tier Levels H Covered Species Status by HMA LIST OF FIGURES Figure Page 2-1 Location of Covered Activities ..........................................................................................11 3-1 Location of Habitat Management Areas (HMAs) and Mitigation Management Areas (MMAs) ...................................................................................................................44 San Diego County Water Authority 2018 NCCP/HCP Annual Report Page iii NCCP_Rpt_2018_65013.docx 4/5/2019 LIST OF TABLES Table Page 1-1 Summary of Vegetation Community/Land Cover Impacts – CIP and O&M Covered Activities ...............................................................................................................6 2-1 CIP Covered Activities – Active Construction Phase January 1 through December 31, 2018 ............................................................................................................10 2-2 Summary of Projected Impacts and Mitigation Requirements for CIP Covered Activities Initiated during Reporting Period ......................................................................13 2-3 Pipeline 3 Relining Project Lake Murray to Sweetwater Reservoir Vegetation Community/Land Cover As-Built Impacts ........................................................................17 2-4 Pipeline 3 Relining Project Lake Murray to Sweetwater Reservoir Off-site Mitigation ...........................................................................................................................18 2-5 Helix 2 FCF Decommissioning and Repurposing Project Vegetation Community/Land Cover As-Built Impacts ........................................................................19 2-6 Helix 2 FCF Demolition and Repurposing Project Off-site Mitigation ............................20 2-7 Moosa Canyon Erosion Control Project Vegetation Community/Land Cover As-Built Impacts ................................................................................................................24 2-8 Moosa Canyon Erosion Control Project Jurisdictional Waters of the U.S. and State As-Built Impacts .......................................................................................................25 2-9 Moosa Canyon Erosion Control Project Jurisdictional Wetlands/Riparian Impacts Permit Comparison ............................................................................................................26 2-10 Moosa Canyon Erosion Control Project Off-site Mitigation .............................................28 2-11 Pipeline 5 Relining from Delivery Point to Sage Road Projected Impact Summary ........31 2-12 O&M Covered Activities Implemented January 1 through December 31, 2018 ..............33 2-13