Appendix C Bear Valley Parkway Specific Alignment Plan Biological Resources Technical Report (October 2016)

APPENDICES Appendix C Bear Valley Parkway Specific Alignment Plan Biological Resources Technical Report (October 2016) 661 Bear Valley Parkway EIR March 2017 APPENDICES This page intentionally left blank 661 Bear Valley Parkway EIR March 2017 Bear Valley Parkway Specific Alignment Plan Biological Technical Report San Diego County, California Prepared for: Spieth-Wohlford Inc. P.O. Box 5005 No. 17 Rancho Santa Fe, California 92067 Contact: Mr. Burnet Wohlford Prepared by: 605 Third Street Encinitas, California 92024 Contact: Anita Hayworth 760.479.4239 OCTOBER 2016 Printed on 30% post-consumer recycled material. Bear Valley Parkway Specific Alignment Plan Biological Technical Report TABLE OF CONTENTS Section Page No. ACRONYMS AND ABBREVIATIONS ..................................................................................... V SUMMARY OF FINDINGS .....................................................................................................VII 1 INTRODUCTION..............................................................................................................1 2 PROJECT SETTING ........................................................................................................7 2.1 Environmental Setting ............................................................................................ 7 2.1.1 Soils............................................................................................................. 7 2.1.2 Hydrology ................................................................................................... 7 2.2 Applicable Regulations ........................................................................................... 8 2.2.1 Federal......................................................................................................... 8 2.2.2 State........................................................................................................... 14 2.2.3 Local/City of Escondido ........................................................................... 17 3 METHODS .......................................................................................................................21 3.1 Literature Review.................................................................................................. 21 3.2 Field Reconnaissance ............................................................................................ 21 3.2.1 Resource Mapping .................................................................................... 21 3.2.2 Flora .......................................................................................................... 22 3.2.3 Fauna ......................................................................................................... 22 3.2.4 Jurisdictional Wetlands Delineation ......................................................... 22 4 RESULTS OF SURVEY .................................................................................................27 4.1 Botany – Plant Communities and Floral Diversity ............................................... 27 4.1.1 Southern Coast Live Oak Riparian Forest (61310)................................... 27 4.1.2 Disturbed Habitat (11300) ........................................................................ 27 4.1.3 Developed Land (12000) .......................................................................... 28 4.1.4 Floral Diversity ......................................................................................... 28 4.2 Zoology – Wildlife Diversity ................................................................................ 28 4.2.1 Birds .......................................................................................................... 28 4.2.2 Reptiles and Amphibians .......................................................................... 29 4.2.3 Mammals................................................................................................... 29 4.2.4 Invertebrates .............................................................................................. 29 4.3 Special-Status Biological Resources/Regulated Resources .................................. 29 4.3.1 Special-Status Plant Species ..................................................................... 30 4.3.2 Special-Status Wildlife Species ................................................................ 30 7833-05 i October 2016 Bear Valley Parkway Specific Alignment Plan Biological Technical Report TABLE OF CONTENTS (CONTINUED) Section Page No. 4.3.3 Wildlife Corridors and Habitat Linkages .................................................. 31 4.3.4 Jurisdictional Aquatic Resources .............................................................. 32 5 ANTICIPATED PROJECT IMPACTS ........................................................................33 5.1 Direct Impacts ....................................................................................................... 33 5.1.1 Vegetation Communities .......................................................................... 33 5.1.2 Special-Status Plants ................................................................................. 33 5.1.3 Special-Status Wildlife ............................................................................. 34 5.1.4 Habitat Linkages/Wildlife Corridors ........................................................ 34 5.1.5 Jurisdictional Aquatic resources ............................................................... 34 5.2 Indirect Impacts .................................................................................................... 35 5.2.1 Vegetation Communities and Special-Status Plants ................................. 35 5.2.2 Special-Status Wildlife ............................................................................. 36 5.2.3 Habitat Linkages/Movement Corridors .................................................... 38 5.2.4 Jurisdictional Aquatic Resources .............................................................. 39 6 ANALYSIS OF SIGNIFICANCE ..................................................................................41 6.1 Explanation of Findings of Significance............................................................... 41 6.2 Vegetation Communities ...................................................................................... 42 6.3 Special-Status Plants ............................................................................................. 43 6.4 Special-Status Wildlife ......................................................................................... 43 6.5 Habitat Linkages/Wildlife Corridors .................................................................... 44 6.6 Jurisdictional Aquatic Resources .......................................................................... 44 7 MITIGATION ..................................................................................................................47 7.1 Vegetation Communities ...................................................................................... 47 7.2 Special-Status Plants ............................................................................................. 47 7.3 Special-Status Wildlife ......................................................................................... 47 7.4 Habitat Linkages/Wildlife Corridors .................................................................... 48 7.5 Jurisdictional Aquatic Resources .......................................................................... 48 8 ACKNOWLEDGMENTS ...............................................................................................49 9 LITERATURE CITED ...................................................................................................51 7833-05 ii October 2016 Bear Valley Parkway Specific Alignment Plan Biological Technical Report TABLE OF CONTENTS (CONTINUED) Page No. APPENDICES A Vascular Plant Species Observed within the Project Boundary B Cumulative List of Wildlife Species Observed within the Project Boundary C Special-Status Plant Species Potential to Occur D Special-Status Wildlife Potential to Occur E Routine Wetland Determination Data Forms FIGURES 1 Regional Map .......................................................................................................................3 2 Vicinity Map ........................................................................................................................5 3 Hydrologic Setting ...............................................................................................................9 4 Subarea Plan.......................................................................................................................19 5 Biological Resources .........................................................................................................25 TABLES 1 Impacts to Vegetation Communities and Land Covers .....................................................27 2 Jurisdictional Aquatic Resources .......................................................................................32 7833-05 iii October 2016 Bear Valley Parkway Specific Alignment Plan Biological Technical Report INTENTIONALLY LEFT BLANK 7833-05 iv October 2016 Bear Valley Parkway Specific Alignment Plan Biological Technical Report ACRONYMS AND ABBREVIATIONS Acronyms/Abbreviations Definition ACOE U.S. Army Corps of Engineers BCLA Biological Core and Linkage Area BMP best management practice CCR California Code of Regulations CDFW California

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