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BIOLOGICAL TECHNICAL REPORT for the Otay 250 SPA Project PDS2015-SPA15-001

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BIOLOGICAL TECHNICAL REPORT for the Otay 250 SPA Project PDS2015-SPA15-001 BIOLOGICAL TECHNICAL REPORT for the Otay 250 SPA Project PDS2015-SPA15-001 Prepared by: 2442 Second Avenue San Diego, California 92101 (619) 232-9200 Project Proponent: Andrea Rosati Sunroad Enterprises 4445 Eastgate Mall, Suite 400 San Diego, CA 92121 Elyssa Robertson Principal, County QCL Biologist Catherine MacGregor Senior Biologist March 2017 CONTENTS GLOSSARY OF TERMS AND ACRONYMS SUMMARY 1.0 INTRODUCTION ........................................................................................................ 1 1.1 Purpose of the Report................................................................................................ 1 1.2 Project Location and Description.............................................................................. 1 1.3 Survey Methods ........................................................................................................ 2 1.4 Environmental Setting .............................................................................................. 8 1.4.1 Regional Context ............................................................................................... 9 1.4.2 Vegetation/Land Cover Categories .................................................................... 9 1.4.2.1 Wetland Vegetation Categories .................................................................... 10 1.4.2.2 Upland Vegetation Categories ...................................................................... 13 1.4.2.3 Other Upland Land Cover Categories .......................................................... 14 1.4.2.4 Vegetation Categories Included in the 2000 FSEIR but No Longer Present on the Site .................................................................................................................. 15 1.4.3 Flora ................................................................................................................. 16 1.4.4 Fauna ................................................................................................................ 16 1.4.5 Special-status Plant Species ............................................................................. 16 1.4.5.1 Special-status Plant Species Documented Onsite ......................................... 17 1.4.5.2 Special-status Plant Species with Moderate to High Potential to Occur Onsite ........................................................................................................................ 19 1.4.6 Special-status Animal Species ......................................................................... 19 1.4.6.1 Special-status Animal Species Observed on or over the Site ........................ 19 1.4.6.2 Special-status Animal Species with High Potential to Occur Onsite ........... 24 1.4.6.3 Special-status Animal Species with Moderate Potential to Occur Onsite .... 24 1.4.6.4 Special-status Animal Species with Assumed Presence Onsite .................... 24 1.4.6.5 Other Special-status Animal Species with Project Significance ................... 25 1.4.6.6 Other Federal and State Protection for Birds .............................................. 26 1.4.7 Wetlands / Jurisdictional Waters ..................................................................... 26 1.4.7.1 County of San Diego Wetlands/Waters ......................................................... 26 1.4.7.2 US Army Corps of Engineers (USACE) Wetlands/Waters ........................... 28 1.4.7.3 California Waters of the State....................................................................... 29 1.4.7.4 California Department of Fish and Wildlife (CDFW) Lakes and Streams ... 30 Otay 250 SPA Project i REC Consultants, Inc. Biological Technical Report March 2017 1.4.8 Habitat Connectivity, Wildlife Corridors, and Nursery Sites .......................... 30 1.5 Applicable Regulations ........................................................................................... 31 1.5.1 Federal Regulations and Standards .................................................................. 32 1.5.2 California Regulations and Standards .............................................................. 33 1.5.1 Local Regulations and Standards ..................................................................... 34 2.0 PROJECT EFFECTS .................................................................................................. 37 2.1 Direct Impacts ......................................................................................................... 37 2.1.1 Direct Vegetation/Habitat Impacts .................................................................. 37 2.1.2 Direct Special-status Species Impacts ............................................................. 39 2.2 Indirect Impacts ...................................................................................................... 39 2.3 Cumulative Impacts ................................................................................................ 40 3.0 SPECIAL-STATUS SPECIES ................................................................................... 44 3.1 Guidelines for the Determination of Significance for Special-status Species ........ 44 3.2 Analysis of Project Effects for Special-Status Species ........................................... 45 3.3 Cumulative Impact Analysis for Special-Status Species ........................................ 52 3.4 Mitigation Measures and Design Considerations for Special-Status Species ........ 53 3.4.1 Mitigation Measures for Plant Species ............................................................ 53 3.4.1.1 Variegated dudleya mitigation measures...................................................... 53 3.4.1.2 San Diego button-celery mitigation measures .............................................. 56 3.4.1.3 Coast Barrel Cactus mitigation measures .................................................... 57 3.4.1.4 Special-status plant indirect impacts mitigation measures .......................... 57 3.4.2 Mitigation Measures for Animal Species ........................................................ 62 3.4.2.1 San Diego and Riverside fairy shrimp .......................................................... 62 3.4.2.2 White-tailed kite: ........................................................................................... 63 3.4.2.3 Northern harrier: .......................................................................................... 63 3.4.2.4 Burrowing owl: ............................................................................................. 64 3.4.2.5 Turkey vulture: .............................................................................................. 64 3.4.2.6 Loggerhead shrike: ....................................................................................... 64 3.4.2.7 Black-tailed jackrabbit: ................................................................................ 65 3.4.2.8 Raptors:......................................................................................................... 65 3.4.2.9 Quino Checkerspot Butterfly: ....................................................................... 65 3.4.2.10 Cumulative impacts to special-status species: ............................................ 65 3.5 Conclusions for Special Status Species .................................................................. 66 4.0 RIPARIAN HABITAT OR SENSITIVE NATURAL COMMUNITIES .................. 67 Otay 250 SPA Project ii REC Consultants, Inc. Biological Technical Report March 2017 4.1 Guidelines for the Determination of Significance for Riparian or Sensitive Natural Communities ................................................................................................................. 67 4.2 Analysis of Project Effects for Riparian or Sensitive Natural Communities .......... 68 4.3 Cumulative Impact Analysis for Riparian or Sensitive Natural Communities ....... 70 4.4 Mitigation Measures and Design Considerations for Riparian or Sensitive Natural Communities ................................................................................................................. 70 4.5 Conclusions for Riparian or Sensitive Natural Communities ................................. 75 5.0 JURISDICTIONAL WETLANDS AND WATERWAYS ........................................ 76 5.1 Guidelines for the Determination of Significance for Federal Jurisdictional Wetlands ....................................................................................................................... 76 5.2 Analysis of Project Effects to Federal Jurisdictional Wetlands ......................... 76 5.3 Cumulative Impact Analysis for Federal Jurisdictional Wetlands ......................... 77 5.4 Mitigation Measures and Design Considerations for Federal Jurisdictional Wetlands ....................................................................................................................... 77 5.5 Conclusions for Federal Jurisdictional Wetlands ................................................... 78 6.0 WILDLIFE MOVEMENT AND NURSERY SITES ................................................ 79 6.1 Guidelines for the Determination of Significance for Wildlife Movement and Nursery Sites ................................................................................................................. 79 6.2 Analysis of Project Effects for Wildlife Movement and Nursery Sites .................. 79 6.3 Cumulative Impact Analysis for Wildlife Movement and Nursery Sites ............... 81 6.4 Mitigation Measures and Design Considerations for
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