Environmental Impact Statement - Sonoma Land Trust

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Table ES-1. Continued Page 2 of 1412 Impact Significance Determination Mitigation Measure Surface Water Hydrology, Tidal Hydraulics, and Sedimentation No-Action Alternative No Impact Proposed Project/Full-Tidal Alternative Impact HYD-1: Potential Impacts from Tidal Flooding. Impact HYD-2: Potential Erosion and Sedimentation Impacts in the Tidal Basin. Impact HYD-3: Potential Changes in Tolay Creek Flood Risk. Less than Significant None Required N/A Less than Significant Less than SignificantBeneficial Impact None RequiredMitigation Measure HYD- MM-1: Implement Erosion Protection Measures None Required Impact HYD-4: Consistency with Flood Zoning No Impact None Required N/A Impact HYD-5: Modification to San Pablo Bay Tidal Circulation Impact HYD-6: Modification to Tolay Creek Morphology and Sedimentation Processes Impact HYD-7: Modification to San Pablo Bay Morphology and Sedimentation Processes. Less than Significant None Required N/A Proposed Project: Significant and Unavoidable (Option 1 & 2) Less than Significant (Option 3) Full-Tidal: Significant Proposed Project: None Proposed (Option 1 & 2); None Required (Option 3) Full Tidal: Mitigation Measure HYD-MM- 2: Expand Tolay Creek Widening and Deepening to1: Avoid IncreasedUnacceptable Levels of Tidal Muting. in Tolay Creek Less than Significant None Required N/A Significance Determination with Mitigation Incorporation Less than SignificantN/A N/A Proposed Project: Significant and Unavoidable (Option 1 &2); N/A (Option 3) Full-Tidal: Less than Significant
Table ES-1. Continued Page 3 of 1412 Impact Significance Determination Mitigation Measure Impact HYD-8: Impact of Sea Level Rise on Marsh Formation and on Levee Protection Less than Significant Mitigation Measure HYD-MM-3: Monitor Sea Level Rise and Raise the Flood Protection Levee as Needed to Protect the SMART Line and the Agricultural Land East of the SMART Line Mitigation Measure HYD-MM-4: Monitor Marsh Formation and Consider Adaptive Management Actions to Maintain Tidal Marsh and/or Allow Inland Migration of the Tidal Marsh in Light of Ongoing Sea Level Rise.None Required. Significance Determination with Mitigation Incorporation N/A Less than Significant Water Quality No-Action Alternative No Impact Proposed Project/Full-Tidal Alternative Impact WQ-1: Degradation of Surface Water and Sediment Quality due to release of Pollutants during construction. Impact WQ-2: Degradation of Surface Water and Sediment Quality due to Increase Methyl Mercury formation Significant Significant Mitigation Measure WQ-MM-1: Prepare and Implement Revised Corrective Action Plan for Sports Club Shooting Range Site. Mitigation Measure WQ-MM-21: Implement Water Quality Control Measures for Project Construction. Significant Mitigation Measure WQ-MM-3: 2: Development and Implement a Methyl Mercury Adaptive Management Plan Impact WQ-3: Degradation of Groundwater Quality Less than Significant None Required N/A Impact WQ-4: Changes in Dissolved Oxygen Concentration in Receiving Waters Impact WQ-5: Potential Turbidity Impacts due to Dredging and Placement of Dredged Material Impact WQ-6: Degradation of Water Quality due to Inundation of Formerly Drained Wetlands Less than Significant None Required N/A Significant Mitigation Measure WQ-MM-43: Implement Water Quality Control Measures for Project Dredging Less than Significant None Required N/A Less than Significant Less than Significant Less than Significant Less than Significant
Page 1 and 2: Sears Point Wetland and Watershed R
Page 3 and 4: Sears Point Wetland and Watershed R
Page 5 and 6: Contents List of Tables ...........
Page 7 and 8: California Department of Fish and G
Page 23 and 24: Executive Summary This summary prov
Page 31: Table ES-1. Summary of Impacts and
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Page 69 and 70: Table 2-2. Action Alternatives Cons
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California Department of Fish and G
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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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Section 3.4 Public Health and Safet
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Table 3.5-2. Special-Status Species
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Table 3.5-2. Continued Page 3 of 12
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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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Table 3.11-1. Ambient Air Quality S
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Table 3.11-32, Continued Page 2 of
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Section 3.12 Noise Introduction Thi
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Section 3.14 Aesthetics Introductio
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Section 3.15 Environmental Justice
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Chapter 4 Consultation and Other Re
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Sonoma Land Trust Chapter 4. Consul
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Chapter 5 Public Involvement and Sc
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Sonoma Land Trust Chapter 7. Refere
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Environmental Impact Statement - Sonoma Land Trust

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