Draft Environmental Impact Report Bogle Wind Turbine Project State Clearinghouse No.: 2015102072 Yolo County Department of Community Services Technical Assistance Provided by: Aspen Environmental Group March 2017 DRAFT Environmental Impact Report Bogle Wind Turbine Project State Clearinghouse No. 2015102072 Prepared for: Yolo County Department of Community Services Technical Assistance Provided by: March 2017 Bogle Wind Turbine Project CONTENTS Contents Executive Summary .................................................................................................................................................................................................. ES-1 ES.1 Introduction ................................................................................................................................................................................................. ES-1 ES.2 Project Overview ..................................................................................................................................................................................... ES-1 ES.3 Summary of Public Involvement ................................................................................................................................................. ES-2 ES.4 Areas of Controversy ............................................................................................................................................................................ ES-2 ES.5 Issues to Be Resolved ........................................................................................................................................................................... ES-3 ES.6 Summary of Impacts ............................................................................................................................................................................. ES-3 ES.7 Summary of Alternatives .................................................................................................................................................................. ES-5 ES.8 EIR Conclusions: Environmentally Superior Alternative .......................................................................................... ES-6 1. Introduction .............................................................................................................................................................................................................. 1-1 1.1 Background and Project Overview .............................................................................................................................................. 1-1 1.2 Project Objectives ..................................................................................................................................................................................... 1-1 1.3 Public Participation .................................................................................................................................................................................. 1-2 1.3.1 Scoping ............................................................................................................................................................................................ 1-2 1.4 Agency Use of the EIR ............................................................................................................................................................................ 1-2 1.5 Document Organization ....................................................................................................................................................................... 1-2 2. Project Description ............................................................................................................................................................................................ 2-1 2.1 Introduction ................................................................................................................................................................................................... 2-1 2.2 Project Location.......................................................................................................................................................................................... 2-1 2.3 Project Components ............................................................................................................................................................................... 2-2 2.4 Construction .................................................................................................................................................................................................. 2-2 2.5 Operation and Maintenance............................................................................................................................................................ 2-3 2.6 Decommissioning ...................................................................................................................................................................................... 2-3 3. Environmental Analysis ................................................................................................................................................................................ 3-1 3.1 Approach to Environmental Analysis ........................................................................................................................................ 3-1 3.2 Resource Areas with Impacts Found Not to be Significant ..................................................................................... 3-2 3.2.1 Agriculture .................................................................................................................................................................................... 3-2 3.2.2 Air Quality ..................................................................................................................................................................................... 3-4 3.2.3 Greenhouse Gas Emissions ............................................................................................................................................. 3-6 3.2.4 Land Use and Planning ....................................................................................................................................................... 3-7 3.2.5 Mineral Resources ................................................................................................................................................................. 3-8 3.2.6 Population/Housing .............................................................................................................................................................. 3-9 3.2.7 Public Services ........................................................................................................................................................................... 3-9 3.2.8 Recreation ................................................................................................................................................................................. 3-10 3.2.9 Transportation and Traffic ........................................................................................................................................... 3-10 3.2.10 Utilities and Service Systems ...................................................................................................................................... 3-12 3.3 Aesthetics ..................................................................................................................................................................................................... 3-13 3.4 Biological Resources ............................................................................................................................................................................ 3-28 3.5 Cultural Resources and Tribal Cultural Resources ....................................................................................................... 3-53 3.6 Geology and Soils ................................................................................................................................................................................... 3-60 3.7 Hazards and Hazardous Materials ............................................................................................................................................ 3-67 3.8 Hydrology and Water Quality ...................................................................................................................................................... 3-74 3.9 Noise and Vibration .............................................................................................................................................................................. 3-82 3.10 Cumulative Effects ................................................................................................................................................................................ 3-92 3.10.1 Approach .................................................................................................................................................................................... 3-92 3.10.2 Cumulative Effects Analysis ......................................................................................................................................... 3-94 March 2017 i Draft EIR Bogle Wind Turbine Project CONTENTS 4. 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