Environmental Impact Statement - Sonoma Land Trust

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California Department of Fish and Game U.S. Fish and Wildlife Service Table of Contents Relationship of the Project to Local, Regional, and National Plans.....................................................................................................1-10 San Francisco Bay Plan .................................................................1-10 San Francisco Estuary Project Comprehensive Conservation and Management Plan .............................................1-11 San Francisco Estuary Baylands Ecosystem Goals Project.............................................................................................1-11 San Francisco Bay Joint Venture Implementation Strategy ..........................................................................................1-12 Sonoma County General Plan and Zoning Ordinance ...................1-12 Bay Trail Plan and Sonoma Bay Trail Corridor Plan.......................1-13 Public Involvement................................................................................1-13 Restoration Plan Development .......................................................1-13 NEPA/CEQA...................................................................................1-14 Scoping...........................................................................................1-14 Notice of Preparation and Notice of Intent......................................1-14 Distribution and Review of this Draft EIR/EIS.................................1-15 Other Changes to the Draft EIR/EIS...............................................1-15 List of Local, State, and Federal Permits..............................................1-17 Organization of this EIR/EIS.................................................................1-18 Chapter 2 Alternatives ...........................................................................................2-1 Introduction.............................................................................................2-1 Alternatives Development.......................................................................2-1 Initial Alternatives Development .......................................................2-1 NEPA/CEQA Alternatives Development...........................................2-2 Description of Alternatives Evaluated in Detail.......................................2-3 Overview...........................................................................................2-3 No-Action Alternative ........................................................................2-3 Partial-Tidal Wetland Restoration (Proposed Project) ......................2-5 Full-Tidal Restoration Alternative....................................................2-34 Operation and Maintenance ...........................................................2-42 Alternatives Considered but Not Evaluated in Detail............................2-46 Muted-Tidal Alternative...................................................................2-46 Full Equilibrium Dredging Alternative..............................................2-46 Bayfront Spur Trail Alternative........................................................2-47 Dickson Ranch Alternative..............................................................2-47 Off-Site Alternative..........................................................................2-49 Chapter 3 Section 3.1 Affected Environment and Environmental Consequences ......................................................................................3-1 Introduction.............................................................................................3-1 Geology, Soils, and Paleontology....................................................3.1-1 Introduction..........................................................................................3.1-1 Affected Environment ..........................................................................3.1-1 Data Sources .................................................................................3.1-1 Regulatory Setting .........................................................................3.1-2 Regional Topography ....................................................................3.1-4 Sears Point Geology and Paleontology .........................................3.1-5 Sears Point Wetland and Watershed Restoration Project Final Environmental Impact Report/Environmental Impact Statement ii April 2012
California Department of Fish and Game U.S. Fish and Wildlife Service Table of Contents Soils ...............................................................................................3.1-5 Geologic Hazards ..........................................................................3.1-7 Landslides and Other Slope Stability Hazards ..............................3.1-9 Environmental Consequences and Mitigation Measures...................3.1-10 Approach and Methods................................................................3.1-10 Impact Mechanisms.....................................................................3.1-13 Thresholds of Significance...........................................................3.1-13 Impacts and Mitigation Measures ................................................3.1-13 Section 3.2 Section 3.3 Section 3.4 Surface-Water Hydrology, Tidal Hydraulics, and Sedimentation....................................................................................3.2-1 Introduction..........................................................................................3.2-1 Affected Environment ..........................................................................3.2-1 Data Sources .................................................................................3.2-1 Regulatory Setting .........................................................................3.2-2 Topography....................................................................................3.2-4 Climate...........................................................................................3.2-5 Regional Hydrology .......................................................................3.2-5 Surface-Water Drainage Patterns..................................................3.2-8 Flood Zoning and Risk...................................................................3.2-9 Environmental Consequences and Mitigation Measures...................3.2-10 Approach and Methods................................................................3.2-10 Impact Mechanisms.....................................................................3.2-10 Thresholds of Significance...........................................................3.2-11 Impacts and Mitigation Measures ................................................3.2-12 Water Quality......................................................................................3.3-1 Introduction..........................................................................................3.3-1 Affected Environment ..........................................................................3.3-1 Data Sources .................................................................................3.3-1 Regulatory Setting .........................................................................3.3-1 Regional Water Quality Conditions................................................3.3-6 Site-Specific Water Quality Conditions ..........................................3.3-8 Groundwater Quality......................................................................3.3-9 Wetland Water Quality.................................................................3.3-10 Environmental Consequences and Mitigation Measures...................3.3-10 Approach and Methods................................................................3.3-10 Impact Mechanisms.....................................................................3.3-11 Thresholds of Significance...........................................................3.3-13 Impacts and Mitigation Measures ................................................3.3-13 Public Health and Safety...................................................................3.4-1 Introduction..........................................................................................3.4-1 Affected Environment ..........................................................................3.4-1 Data Sources .................................................................................3.4-1 Regulatory Setting ........................................................................ 3.4-2 Mosquito Breeding and Control .....................................................3.4-2 Mosquito Control Criteria and Methods .........................................3.4-3 Mosquito Breeding Habitats in the Project Area ............................3.4-4 Public Safety..................................................................................3.4-4 Sears Point Wetland and Watershed Restoration Project Final Environmental Impact Report/Environmental Impact Statement iii April 2012
Page 1 and 2: Sears Point Wetland and Watershed R
Page 3 and 4: Sears Point Wetland and Watershed R
Page 5: Contents List of Tables ...........
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Page 23 and 24: Executive Summary This summary prov
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California Department of Fish and G
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Table 2-2. Action Alternatives Cons
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Chapter 3 Affected Environment and
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Section 3.1 Geology, Soils, and Pal
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Section 3.2 Surface-Water Hydrology
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Section 3.3 Water Quality Introduct
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Table 3.5-2. Special-Status Species
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Section 3.6 Land Use and Public Uti
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Section 3.7 Agricultural Resources
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Section 3.11 Air Quality Introducti
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Section 3.12 Noise Introduction Thi
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Sonoma Land Trust Chapter 4. Consul
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Environmental Impact Statement - Sonoma Land Trust

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