Draft Environmental Assessment for the Shiloh Iii Wind Plant Project Habitat Conservation Plan
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DRAFT ENVIRONMENTAL ASSESSMENT FOR THE SHILOH III WIND PLANT PROJECT HABITAT CONSERVATION PLAN P REPARED BY: U.S. Fish & Wildlife Service 2800 Cottage Way, W-2650 Sacramento, CA 95825 Contact: Mike Thomas, Chief Habitat Conservation Planning Branch W ITH TECHNICAL ASSISTANCE FROM: ICF International 630 K Street, Suite 400 Sacramento, CA 95814 Contact: Brad Schafer 916.737.3000 February 2011 U.S. Fish and Wildlife Service. 2011. Draft Environmental Assessment for the Shiloh III Wind Plant Project Habitat Conservation Plan. February. (ICF 00263.09). Sacramento, CA. With technical assistance from ICF International, Sacramento, CA. Contents Chapter 1 Purpose and Need ........................................................................................................... 1‐1 1.1 Background ................................................................................................................................ 1‐1 1.2 Species Covered by the HCP ...................................................................................................... 1‐2 1.3 Proposed Action Addressed in this EA ....................................................................................... 1‐2 1.4 Purpose of and Need for the Proposed Action .......................................................................... 1‐2 Chapter 2 Proposed Action and Alternatives .................................................................................. 2‐1 2.1 Alternative 1: Proposed Action .................................................................................................. 2‐1 2.2 Alternative 2: No Action ............................................................................................................. 2‐9 2.3 Alternatives Eliminated from Further Consideration ................................................................ 2‐9 Chapter 3 Affected Environment and Environmental Consequences ........................................... 3‐1 3.1 Aesthetics ................................................................................................................................ 3.1‐1 3.2 Agricultural Resources ............................................................................................................ 3.2‐1 3.3 Air Quality and Climate Change .............................................................................................. 3.3‐1 3.4 Biological Resources ................................................................................................................ 3.4‐1 3.5 Cultural Resources .................................................................................................................. 3.5‐1 3.6 Geology, Minerals, and Paleontological Resources ................................................................ 3.6‐1 3.7 Hazardous Materials ............................................................................................................... 3.7‐1 3.8 Hydrology and Water Quality ................................................................................................. 3.8‐1 3.9 Land Use and Planning ............................................................................................................ 3.9‐1 3.10 Noise ................................................................................................................................... 3.10‐1 3.11 Public Health Hazards ......................................................................................................... 3.11‐1 3.12 Recreation ........................................................................................................................... 3.12‐1 3.13 Traffic and Transportation .................................................................................................. 3.13‐1 3.14 Utilities and Public Service Systems .................................................................................... 3.14‐1 Chapter 4 Other Required Analysis ................................................................................................. 4‐1 4.1 Unavoidable Adverse Effects ..................................................................................................... 4‐1 4.2 Irreversible and Irretrievable Commitments of Resources ........................................................ 4‐1 4.3 Short‐Term Uses versus Long‐Term Productivity ...................................................................... 4‐1 4.4 Cumulative Effects ..................................................................................................................... 4‐1 4.5 Environmentally Preferable Alternative .................................................................................... 4‐6 Chapter 5 List of Preparers .............................................................................................................. 5‐1 Draft Environmental Assessment i February 2011 ICF 00263.09 Tables 3.3‐1 Applicable Federal and State Ambient Air Quality Standards ............................................. 3.3‐1 3.3‐2 Federal de Minimis Threshold Levels for Criteria Pollutants in Nonattainment Areas ....... 3.3‐3 3.3‐3 Federal de Minimis Threshold Levels for Criteria Pollutants in Maintenance Areas .......... 3.3‐4 3.3‐4 Ambient Air Quality Monitoring Data Measured at the Fairfield‐Chadbourne and Vallejo Monitoring Stations ................................................................................................. 3.3‐6 3.3‐5 Summary of Construction Equipment ............................................................................... 3.3‐10 3.3‐6 Summary of Construction Emissions (tons) ...................................................................... 3.3‐10 3.3‐7 Summary of GHG Emissions from Construction Activities (metric tons) .......................... 3.3‐11 3.4‐1 Special‐Status Wildlife Species Potentially Occurring in the Montezuma Hills Region ........................................................................................ follows 3.4‐6 3.4‐2 Special‐Status Plants Potentially Occurring in the Montezuma Hills Region ......... follows 3.4‐6 3.5‐1 Previous Cultural Resource Studies Conducted in the Plan Area and 1‐Mile Buffer Area .......................................................................................................................... 3.5‐6 3.5‐2 Previously Recorded Archaeological Resources in the 1‐Mile Buffer Area ......................... 3.5‐8 3.10‐1 Definition of Acoustical Terms .......................................................................................... 3.10‐1 3.10‐2 Typical Noise Levels ........................................................................................................... 3.10‐2 3.10‐3 Construction Noise Levels ................................................................................................. 3.10‐5 3.10‐4 Amount of Noise Reduction (dB) Required to Achieve 50 dBA CNEL Criterion ................ 3.10‐6 Draft Environmental Assessment ii February 2011 ICF 00263.09 Figures Follows Page 1‐1 Project Location ...................................................................................................................... 1‐2 1‐2 Montezuma Hills Wind Resource Area ................................................................................... 1‐2 2‐1 Turbine Options ...................................................................................................................... 2‐2 2‐2 Impact Analysis Schematic ..................................................................................................... 2‐2 2‐3 Shiloh III Wind Plant Project Features .................................................................................... 2‐2 3.1‐1 Locations of Visual Simulation Viewpoints .......................................................................... 3.1‐4 3.1‐2 Existing and Simulated Views .............................................................................................. 3.1‐4 3.4‐1 Biological Resources in the Plan Area ................................................................................. 3.4‐4 3.10‐1 Locations of Long‐Term Measurement Sites and Sensitive Receptors ............................. 3.10‐4 3.10‐2 Predicted Noise Levels and Criteria at Area Residences ................................................... 3.10‐6 Draft Environmental Assessment iii February 2011 ICF 00263.09 Acronyms and Abbreviations AB Assembly Bill AFB Air Force Base ANSI American National Standards Institute APN Assessor’s Parcel Number area of impact area of potential effects BGEPA Bald and Golden Eagle Protection Act BMPs best management practices CAISO California Independent System Operator Cal-OSHA California Occupational Safety and Health Administration CDC California Department of Conservation CEC California Energy Commission CNDDB California Natural Diversity Database CNEL Community Noise Equivalent Level CNPS California Native Plant Society County Solano County CRHR California Register of Historical Resources CTS California tiger salamander CWA Clean Water Act dB decibel DFG California Department of Fish and Game EA environmental assessment EIR environmental impact report ESA Endangered Species Act FAA Federal Aviation Administration FEMA Federal Emergence Management Agency FHWA Federal Highway Administration FMMP Farmland Mapping and Monitoring Program Frac-out drilling fluid leak GIS geographic information system HCP Habitat Conservation Plan HDD horizontal directional drilling ITP incidental take permit kV kilovolt Draft Environmental