Amador County General Plan Final Environmental Impact Report

Transcription

1 ENVIRONMENTAL IMPACT REPORT FINAL JULY 2016

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3 Amador County General Plan Final Environmental Impact Report Prepared for: Amador County 810 Court Street Jackson, CA Contact: Susan Grijalva Planning Director209/ Prepared by: 2020 L Street, Suite 400 Sacramento, CA Contact: Mat Hertel Project Manager 916/ July 2016

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5 Section 1 INTRODUCTION Type of EIR Tiering and Streamlining Purpose and Intended Uses of the EIR Scope of the EIR Geographic Scope Environmental Issues Addressed Required EIR Contents Notice of Preparation Organization of the EIR Availability of the Draft EIR Agencies Expected to Use this EIR EXECUTIVE SUMMARY Introduction Summary of the Project Description Summary of Significant Impacts and Mitigation Measures Summary of Project Alternatives Alternative 1 No Project/Existing General Plan Alternative 2 City- and Community-Centered Growth Alternative 3 Restricted Growth Environmentally Superior Alternative Areas of Controversy and Issues to be Resolved Public Participation and Additional Steps in the CEQA Process PROJECT DESCRIPTION Background Regional Setting Planning Area Community Vision Preamble Community Character Resources Services Project Objectives Project Characteristics Land Use Element Circulation and Mobility Element Economic Development Element Conservation Element Open Space Element Governance Element Safety Element Table of Contents v County of Amador

6 3.6.8 Noise Element ENVIRONMENTAL IMPACT ANALYSIS Approach to the Environmental Impact Analysis Scope and Level of Detail Structure Determining Level of Significance Format of Impacts and Mitigation Measures Significant and Unavoidable Effects Aesthetics Regulatory Setting Environmental Setting Impacts and Mitigation Measures Agricultural and Forest Resources Regulatory Setting Environmental Setting Impacts and Mitigation Measures Air Quality Regulatory Setting Environmental Setting Impacts and Mitigation Measures Biological Resources Regulatory Setting Environmental Setting Impacts and Mitigation Measures Cultural Resources Regulatory Setting Environmental Setting Impacts and Mitigation Measures Geology, Soils, Mineral Resources, and Paleontological Resources Regulatory Setting Environmental Setting Impacts and Mitigation Measures Greenhouse Gas Emissions Regulatory Setting Environmental Setting Impacts and Mitigation Measures Hazards and Hazardous Materials Regulatory Setting Environmental Setting Impacts and Mitigation Measures Hydrology and Water Quality Regulatory Setting Environmental Setting Impacts and Mitigation Measures Table of Contents vi County of Amador

7 4.10 Land Use and Planning Regulatory Setting Environmental Setting Impacts and Mitigation Measures Noise Regulatory Setting Environmental Setting Impacts and Mitigation Measures Population and Housing Regulatory Setting Environmental Setting Impacts and Mitigation Measures Public Services and Utilities Regulatory Setting Environmental Setting Impacts and Mitigation Measures Transportation Regulatory Setting Environmental Setting Impacts and Mitigation Measures Theoretical Buildout Aesthetics Agricultural and Forest Resources Air Quality Biological Resources Cultural Resources Geology/Soils Greenhouse Gas Emissions Hazards and Hazardous Materials Hydrology and Water Quality Land Use and Planning Noise Population, Employment, and Housing Public Services and Utilities Traffic and Transportation ALTERNATIVES CEQA Requirements and approach For Alternatives Selection Alternatives considered and rejected Alternatives Considered in Detail Alternative 1 No Project/Existing General Plan Alternative 2 City- and Community-Centered Growth Alternative 3 Restricted Growth Relative Impacts of the Alternatives Aesthetics Agricultural and Forest Resources County of Amador vii Table of Contents

8 5.4.3 Air Quality Biological Resources Cultural Resources Geology, Soils, and Mineral and Paleontological Resources Greenhouse Gas Emissions Hazards and Hazardous Materials Hydrology and Water Quality Land Use and Planning Noise Population and Housing Public Services and Utilities Transportation Summary of Comparative Effects of the Alternatives Environmentally Superior Alternative Comparison of Alternatives and Project Objectives OTHER CEQA CONSIDERATIONS Cumulative Effects Methods of Analysis Regional Growth Projections Geographic Scope Cumulative Impacts Growth-Inducing Effects Significant Irreversible Environmental Changes Significant and Unavoidable Effects REPORT PREPARATION REFERENCES LIST OF ACRONYMS AND ABBREVIATIONS COMMENTS AND RESPONSES Introduction List of Commenters on the Environmental Impact Report Master Responses Comments on the DEIR and Responses Appendices A B C D E F G H NOP and Responses Air Quality and Greenhouse Gas Data Biological Resources Cultural Resources Noise Modeling and Results Transportation Data Mitigation Monitoring and Reporting Program Energy Impacts Table of Contents viii County of Amador

9 Exhibits 3-1 Amador County Location Draft Land Use Diagram Circulation Diagram Farmland Williamson Act Lands Timberland Production Zone Existing Land Use Emissions Inventory for Amador County Critical Habitat Vegetation Map Ione Chaparral Special-Status Species Occurrences a Special-Status Species Occurrences North Detail b Special-Status Species Occurrences South Detail National Wetlands Inventory REDACTED Cultural Resource Sensitivity Erosion and Landslide Hazards Soil Limitations Geologic Map b Geological Legend Mineral Resources California Greenhouse Gas Emissions by Category Fire Hazard Severity Zones Westover Field Safety Zones Airports Flood Zones Amador County Airport Noise Contours Typical Noise Levels Existing Noise Contours Existing Stationary Sources Traffic Noise Contours Water Service Areas County of Amador ix Table of Contents

10 Tables 1-1 Analyses Required by the State CEQA Guidelines Comparison of Environmental Impacts of Alternatives to the Draft General Plan Summary of Environmental Impacts and Mitigation Measures Expected Development under the Draft General Plan Town Centers, Regional Service Center, and Special Planning Area Development through Major Routes and Roadways Amador County Crop Acreage Summary of Agricultural Land Conversion in Amador County, Forest- and Timberland in Amador County, Forest Types in Amador County, Comparison of Acres of Important Farmland Converted to Nonagricultural Use in the Planning Area National and California Ambient Air Quality Standards Amador County Ambient Air Quality Summary Summary of Modeled Maximum Annual Criteria Air Pollutant and Precursor Emissions Associated with Construction Activities of the Draft General Plan Summary of Modeled Long-Term Operational Emissions Under the Draft General Plan Major Habitat Types in Amador County Special-Status Plant Species Known to Occur or Potentially Occurring in Amador County Special-Status Wildlife Species Known to Occur or Potentially Occurring in Amador County Known Sites in Amador County Modified Mercalli Index Rock Formations and Paleontological Sensitivity Estimated Annual GHG Emissions Metrics Estimated Annual GHG Emissions Metrics DTSC Hazardous Waste and Substances Sites within the Planning Area SWRCB (Hazardous and Non-Hazardous) Materials Discharge Sites within the Planning Area Amador County Schools Beneficial Uses of Amador County Waterbodies and Groundwater Historic Groundwater Levels in Cosumnes Subbasin Impaired Water Bodies within Amador County Zoning Districts Zoning District-General Plan Designation Consistency Land Use Compatibility for Community Noise Environments Noise Level Performance Standards for Non-Transportation Noise Sources Subjective Reaction to Changes in Noise Levels of Similar Sources Human Response to Different Levels of Groundborne Noise and Vibration Table of Contents x County of Amador

11 Summary of Roadway Traffic Noise Modeling under Existing Conditions Summary of Railway Traffic Noise Modeling under Existing Conditions Summary of Stationary Source Short-Term (ST) Noise Monitoring Summary of Community Noise Survey Long-Term Measurements Construction Equipment Noise Levels (General Plan Implementation Plan Table D-11-1) Significant Change in Ambient Noise Levels Predicted Traffic Noise Levels Existing Conditions and Future 2030 General Plan Update Buildout Conditions Sample Interior Noise Control Measures Allowable Increases in Hourly Ambient Noise Levels Representative Vibration Source Levels for Construction Equipment Projected Population Growth Amador County Housing Stock, Amador County Vacancy Rates, 2000 and Vacancy by Tenure Existing and Projected Water Demand by Sector for the AWA (afy) Existing and Projected Surface and Groundwater Demand for the AWA (afy) Existing and Projected Surface and Groundwater Supplies for the AWA (afy) AWA Water Treatment Plant Capacities, Average Day Demands, and Peak Day Demands, Normal-Year and Dry-Year Comparison of Water Supply and Demand in the AWA ( ) AWA Wastewater Collection, Conveyance, Treatment, and Disposal Systems Current and Projected Wastewater Collection and Treatment for the AWA (afy) Sutter Creek Wastewater Treatment Plant Flow Projections (mgd) Amador Fire Protection District Locations and Equipment Amador County Unified School District Enrollment, Summary of Parks and Recreation Facilities in Unincorporated Amador County Projected Generation of Solid Waste Under the Draft General Plan Generalized Level of Service Conditions Typical Two-Lane Rural Roadways Generalized Level of Service Conditions Typical Urban Roadways (35 to 45 mph Posted Speed) Generalized Level of Service ADT Conditions Typical Urban Roadways (35 to 45 mph Posted Speed) Estimated Level of Service Results Summary of Locations That Project Would Cause to Exceed LOS Threshold Targets or Would Worsen Already Unacceptable LOS Comparison between the Theoretical Buildout Scenario and the Draft General Plan for the Planning Area Comparison of Population, Residential Development, and Commercial/Industrial Growth ( ) Alternative 2 Residential Units Estimated Level of Service Comparison County of Amador xi Table of Contents

12 5-4 Comparison of Environmental Impacts of Alternatives to the Draft General Plan Comparison of Project Objectives of Alternatives to the Draft General Plan Cumulative Growth Projections Geographic Scope of Cumulative Impacts List of Impacts Found to Be Significant and Unavoidable List of Commenters on the DEIR Table of Contents xii County of Amador