Biological Resources Assessment

Biological Resources Assessment

Biological Resources Assessment 1434 Grove Street Healdsburg, California Prepared For: City of Healdsburg August 20, 2019 ECORP Consulting, Inc. has assisted public and private land owners with environmental regulation compliance since 1987. We offer full service capability, from initial baseline environmental studies through environmental planning review, permitting negotiation, liaison to obtain legal agreements, mitigation design, and monitoring and compliance reporting. Citation: ECORP Consulting, Inc. (ECORP). 2019. Biological Resources Assessment for the 1434 Grove Street Project. Prepared for City of Healdsburg, California. August. Biological Resources Assessment for the 1434 Grove Street Project CONTENTS 1.0 INTRODUCTION ................................................................................................................................................................... 1 1.1 Project Location and Description.................................................................................................................. 1 1.2 Purpose of this Biological Resources Assessment ................................................................................. 1 2.0 REGULATORY SETTING ...................................................................................................................................................... 3 2.1 Federal Regulations ............................................................................................................................................ 3 2.1.1 Endangered Species Act .................................................................................................................. 3 2.1.2 Migratory Bird Treaty Act ................................................................................................................ 5 2.1.3 Clean Water Act .................................................................................................................................. 5 2.2 State and Local Regulations ........................................................................................................................... 6 2.2.1 California Endangered Species Act .............................................................................................. 6 2.2.2 Native Plant Protection Act ............................................................................................................ 6 2.2.3 California Fish and Game Code Special Protections for Birds .......................................... 6 2.2.4 Lake or Streambed Alteration Agreements ............................................................................. 7 2.2.5 Porter-Cologne Water Quality Act .............................................................................................. 7 2.2.6 California Environmental Quality Act.......................................................................................... 7 2.2.7 City of Healdsburg General Plan 2030 .................................................................................... 10 3.0 METHODS ............................................................................................................................................................................ 10 3.1 Literature Review .............................................................................................................................................. 10 3.2 Field Surveys Conducted ............................................................................................................................... 11 3.3 Special-Status Species Considered for the Project ............................................................................. 11 4.0 RESULTS ................................................................................................................................................................................ 11 4.1 Site Characteristics and Land Use .............................................................................................................. 11 4.2 Vegetation Communities .............................................................................................................................. 12 4.3 Soils ....................................................................................................................................................................... 12 4.4 Potential Waters of the U.S. ......................................................................................................................... 15 4.4.1 Wetlands ............................................................................................................................................. 15 4.4.2 Other Waters. .................................................................................................................................... 15 4.4.3 Wildlife ................................................................................................................................................. 15 4.5 Evaluation of Special-Status Species Identified in the Literature Search ................................... 16 4.5.1 Special-Status Plants ...................................................................................................................... 26 4.5.2 Special-Status Animals .................................................................................................................. 26 4.5.3 Birds ...................................................................................................................................................... 30 4.5.4 Mammals ............................................................................................................................................ 31 4.6 Wildlife Movement/Corridors ..................................................................................................................... 31 ECORP Consulting, Inc. August 20, 2019 i 1434 Grove Street Project 2019-040 Biological Resources Assessment for the 1434 Grove Street Project 4.7 Critical Habitat ................................................................................................................................................... 32 5.0 RECOMMENDATIONS ..................................................................................................................................................... 32 5.1 Waters of the U.S. ............................................................................................................................................ 32 5.2 Special-Status Plants ....................................................................................................................................... 32 5.3 Special-Status Invertebrate .......................................................................................................................... 34 5.4 Special-Status Fish ........................................................................................................................................... 34 5.5 Special-Status Amphibians ........................................................................................................................... 34 5.6 Special-Status Reptiles ................................................................................................................................... 35 5.7 Special-Status Birds and MBTA-Protected Birds (including Raptors).......................................... 35 5.8 Special-Status Mammals ............................................................................................................................... 35 5.9 Tree/Riparian Impacts .................................................................................................................................... 36 6.0 REFERENCES ........................................................................................................................................................................ 37 LIST OF TABLES Table 1. Potential Waters of the U.S. ......................................................................................................................................... 15 Table 2. Potentially Occurring Special-Status Species ........................................................................................................ 16 LIST OF FIGURES Figure 1. Project Location and Vicinity ........................................................................................................................................ 2 Figure 2. Natural Resources Conservation Service Soil Types ......................................................................................... 13 Figure 3. Aquatic Resources Delineation ................................................................................................................................. 14 Figure 4. Site Plan .............................................................................................................................................................................. 33 LIST OF ATTACHMENTS Attachment A – Representative Site Photographs Attachment B - Plant List Attachment C – Special-Status Species Searches (9-Quad CNPS Search, 9-Quad CNNDB Search, and Project Area IPaC Search) ECORP Consulting, Inc. August 20, 2019 ii 1434 Grove Street Project 2019-040 Biological Resources Assessment for the 1434 Grove Street Project LIST OF ACRONYMS AND ABBREVIATIONS ARD Aquatic Resources Delineation BRA Biological Resources Assessment CDFW California Department of Fish and Wildlife CEQA California

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