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Mccoy Solar Energy Project Draft PA/EIS C-1 May 2012 Appendix C Biological Resources

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Mccoy Solar Energy Project Draft PA/EIS C-1 May 2012 Appendix C Biological Resources APPENDIX C Biological Resources C-1. Biological Resources Technical Report McCoy Solar Energy Project Draft PA/EIS C-1 May 2012 Appendix C Biological Resources This page intentionally left blank McCoy Solar Energy Project Draft PA/EIS C-2 May 2012 Biological Resources Technical Report McCoy Solar Energy Project Riverside County, CA Prepared By: 143 Union Boulevard, Suite 1010 Lakewood, CO 80228 and Alice E. Karl, Ph.D. P.O. Box 74006 Davis, CA 95617 Prepared For: McCoy Solar, LLC August 2011 C-3 This page intentionally left blank C-4 McCoy Solar Energy Project Biological Resources Technical Report EXECUTIVE SUMMARY McCoy Solar, LLC (McCoy Solar) is proposin g to develop the McCoy Solar En ergy Project (MSEP or Project), a photovoltaic (PV) solar power pla nt, in Riverside County, California (Figure 1). The MSEP is an up to 750 me gawatt PV solar power plant that will provide renewable energy to t he California electrical grid throu gh an inter connection at Southern California Edison’s proposed Colorado River Substation. To comply with federal, state, and local laws, natura l resource s must be evaluated at t he Project. As part of evaluating t he Project’s potential effects on species persist ence and/or recovery, the presence of federally listed, state - listed, and o ther special-status plants and animals must be identified a nd their dist ribution and approximate abundance determined. To meet these objectives, comprehensive surveys fo r biological resources were conducted during Spring 2011 of the proposed Solar Plant Site and Linear Corridor. This document describes t he method s and results of tho se surveys. Environmental review for the MSEP will consi st of a joint National Environmenta l Policy Act/ California Environmental Quality Act (NEPA/CEQA) process. The Bureau of Land Management (BLM) will be the lead NEPA agency; Riverside County will be the CEQA lead. Vegetation Vegetation communities in t he P roject Area include u pland vegetation, char acterized by associations (i.e., sub sets) of the Cr eosote Bush-White Burr Sage ( Larrea tridentata-Ambrosia dumosa) Scrub Alliance and large expanses of desert pavement on the Solar Plant Site, and agricultural areas, inter mittent, loo se, shallow sand sh eets and dun es, and small, expose d basins alon g the Linear Corridor. Upland veg etation is la rgely confined to drainages on the Project Area, probably because most of the available water is in the drainages due to the low regional rainfall and su bstrate and soil quality. An occasio nal palo verde (Parkinsonia florida [=Cercidium floridum]) or ironwood (Olneya tesota), or patches of a few individuals, can also be found in some swales or in the more well-developed parts of some runnels. Special-status Species The federally and state -threatened desert tort oise was o bserved within the Project Area in Spring 2010, as well as the state-th reatened Swainson’s h awk (migrant). Other sp ecial-status species observed within the Project Area include the Moja ve fringe-toed lizard ( Uma scoparia), burrowing owl ( Athene cunicularia), Brewer’s sparrow ( Spizella breweri), Le Conte’s thrasher (Toxostoma lecontei), loggerhea d shrike ( Lanius ludovicianus), northern harrier ( Circus cyaneus), priairie falcon (Falco mexicanus), American badg er (Taxidea taxus, digs only). Two golden eagles ( Aquila chrysaetos) were observed flying near the Project Area; however, n o active golden eagle nests or territories were found in or near the Project Area. Also observed within the Project Area was a hide of the burro deer ( Odocoileus hemionus eremicus; a managed game species), wild burro scat ( Equus asinus; managed by BLM ); and desert kit fo x (Vulpus macrotis; protected by California Department of Fish and Game code) natal dens. Six California Native Plant Society-ranked plants were o bserved wit hin the Pro ject Area: Harwood’s phlox ( Eriastrum harwoodii), Harwood’s milkvetch ( Astragalus insularis var. harwoodii), Las Animas colubrin a ( Colubrina californica), Utah cynanchum (Funastrum utahense), ribbed crypt antha ( Cryptantha costata), and d esert unicor n plant ( Proboscidea althaeifolia). ES-1 August 2011 C-5 This page intentionally left blank C-6 TABLE OF CONTENTS EXECUTIVE SUMMARY .............................................................................................................. 1 1.0 INTRODUCTION...............................................................................................................1 1.1 Project Description and Terminology .......................................................................1 1.2 Construction Schedule .............................................................................................2 2.0 PROJECT SETTING.........................................................................................................2 2.1 Project Location ........................................................................................................2 2.2 Environmental Setting ..............................................................................................2 3.0 REGULATORY SETTING.................................................................................................5 3.1 Federal Laws and Regulations.................................................................................5 3.2 State Laws and Regulations.....................................................................................7 3.3 Relevant Management Plans ...................................................................................8 4.0 SURVEY METHODS ......................................................................................................10 4.1 Literature Review ...................................................................................................10 4.2 Field Surveys..........................................................................................................17 4.2.1 Preliminary Surveys....................................................................................17 4.2.2 Rare Plant and Vegetation Surveys, Spring 2011 ......................................17 4.2.2.1 Special-status Plant Species .........................................................17 4.2.2.2 Species Protected by the California Desert Native Plants Act ......19 4.2.2.3 Vegetation Communities and Habitats ..........................................19 4.2.2.4 Non-native Plants ..........................................................................19 4.2.3 Wildlife Surveys, Spring 2011.....................................................................19 4.2.3.1 Desert Tortoise ..............................................................................20 4.2.3.2 Mojave Fringe-toed Lizard .............................................................21 4.2.3.3 Couch’s Spadefoot ........................................................................21 4.2.3.4 Burrowing Owl ...............................................................................22 4.2.3.5 Golden Eagle.................................................................................23 4.2.3.6 Other Avian Surveys .....................................................................24 4.2.3.7 Bats ...............................................................................................25 4.2.3.8 Other Special-status Wildlife .........................................................25 4.2.3.9 Small Mammals .............................................................................26 4.2.3.10 Invertebrates .................................................................................26 5.0 SURVEY RESULTS AND DISCUSSION........................................................................26 5.1 Rare Plants and Vegetation ...................................................................................26 5.1.1 Special-status Plant Species ......................................................................26 5.1.2 CDNPA Species .........................................................................................30 5.1.3 Sensitive Plant Communities ......................................................................30 5.1.4 Non-Native Plants.......................................................................................31 5.2 Wildlife ....................................................................................................................31 5.2.1 Listed Species ............................................................................................31 5.2.1.1 Desert Tortoise ..............................................................................31 5.2.1.2 Swainson’s hawk...........................................................................35 5.2.1.3 Gila Woodpecker and Gilded Flicker .............................................37 5.2.2 Non-listed, Special-status Species .............................................................38 5.2.2.1 Reptiles and Amphibians ...............................................................38 i August 2011 C-7 5.2.2.2 Birds ..............................................................................................39 5.2.2.3 Special-status Mammals ............................................................... 48 5.2.2.4 Small Mammals ............................................................................. 50 5.2.2.5 Invertebrates ................................................................................. 51 5.3 Potential for Other Special-status Species to Occur .............................................
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