Prospect Island Tidal Habitat Restoration Project
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RECIRCULATED ◦ FEBRUARY 2019 Partial Recirculation of Draft Environmental Impact Report: Prospect Island Tidal Habitat Restoration Project DRAFT Partial Recirculation of Draft Environmental Impact Report Prospect Island Tidal Habitat Restoration Project Partial Recirculation of Draft Environmental Impact Report: Prospect Island Tidal Habitat Restoration Project Prepared by: California Department of Water Resources Fish Restoration Program, Division of Environmental Services West Sacramento, CA and California Department of Fish and Wildlife Fish Restoration Program, Bay Delta Region (Region 3) Stockton, CA February 2019 February 2019 DRAFT Partial Recirculation of Draft Environmental Impact Report Prospect Island Tidal Habitat Restoration Project Partial Recirculation of Draft Environmental Impact Report: Prospect Island Tidal Habitat Restoration Project Lead Agency: California Department of Water Resources The following individuals may be contacted for additional information concerning this document: Dan Riordan California Department of Water Resources 3500 Industrial Blvd. West Sacramento, CA 95691 (916) 376-9738 February2019 DRAFT Partial Recirculation of Draft Environmental Impact Report Prospect Island Tidal Habitat Restoration Project Suggested Citation: Department of Water Resources and Department of Fish and Wildlife. 2019. Partial Recirculation of Draft Environmental Impact Report: Prospect Island Tidal Habitat Restoration Project. Prepared by California Department of Water Resources, Fish Restoration Program, Division of Environmental Services, West Sacramento, CA and California Department of Fish and Wildlife, Fish Restoration Program, Bay Delta Region (Region 3), Stockton, CA. February. February 2019 DRAFT Partial Recirculation of Draft Environmental Impact Report Prospect Island Tidal Habitat Restoration Project Table of Contents 1 INTRODUCTION AND BACKGROUND ...................................................... 1-1 2 RECIRCULATION ........................................................................................ 2-1 3 PROJECT DESCRIPTION ........................................................................... 3-1 4 SUMMARY OF CHANGES .......................................................................... 4-1 4.1 Access to Technical Reports .......................................................... 4-2 4.2 Proposed Project ............................................................................. 4-4 4.3 Hydrology ......................................................................................... 4-5 4.4 Water Quality .................................................................................... 4-7 4.5 Air Quality ......................................................................................... 4-8 4.6 Noise ................................................................................................. 4-9 4.7 Transportation and Traffic .............................................................. 4-9 4.8 Alternatives .................................................................................... 4-10 5 RECIRCULATED PORTIONS OF THE DEIR .............................................. 5-1 5.1 Revisions to the DEIR Proposed Project Description .................. 5-1 2 Proposed Project Description .............................................................. 5-1 2.1 Proposed Project ............................................................................. 5-1 2.1.1 Proposed Project location ..................................................... 5-1 2.1.2 Site history ............................................................................. 5-5 2.1.3 Current land use and ownership .......................................... 5-6 2.1.4 Surrounding properties ......................................................... 5-9 2.1.5 Proposed Project context within Delta regional restoration efforts ................................................................................... 5-10 2.2 Proposed Project Actions ............................................................... 5-12 2.2.1 Summary ............................................................................... 5-12 2.2.2 Anticipated future habitat conditions, Proposed Project . 5-18 2.2.3 Description of Proposed Project components and construction activities ......................................................... 5-22 5.2 Revisions to the DEIR Hydrology Analysis ................................. 5-57 3 ENVIRONMENTAL SETTING, IMPACTS, AND MITIGATION MEASURES .......................................................................................... 5-57 3.1 Hydrology ....................................................................................... 5-57 3.1.1 Setting .................................................................................. 5-57 3.1.2 Significance criteria............................................................. 5-78 3.1.3 Impacts and mitigation ........................................................ 5-79 5.3 Revisions to the DEIR Water Quality Analysis ............................ 5-91 3.2 Water Quality .................................................................................. 5-91 3.2.1 Setting .................................................................................. 5-91 3.2.2 Significance criteria........................................................... 5-119 February 2019 i DRAFT Partial Recirculation of Draft Environmental Impact Report Prospect Island Tidal Habitat Restoration Project 3.2.3 Impacts and mitigation ...................................................... 5-120 5.4 Revisions to the DEIR Air Quality Analysis ............................... 5-135 3.7 Air Quality ..................................................................................... 5-135 3.7.1 Setting ................................................................................. 5-135 3.7.2 Significance criteria ............................................................. 5-148 3.7.3 Impacts and mitigation ........................................................ 5-149 5.5 Revisions to the DEIR Noise Analysis ....................................... 5-158 3.10 Noise ............................................................................................. 5-158 3.10.1 Setting ................................................................................. 5-160 3.10.2 Significance criteria .............................................................. 5-164 3.10.3 Impacts and mitigation ......................................................... 5-165 5.6 Revisions to the Transportation and Traffic Analysis .............. 5-170 3.17 Transportation and Traffic .......................................................... 5-170 3.17.1 Setting ................................................................................. 5-170 3.17.2 Significance criteria .............................................................. 5-173 3.17.3 Impacts and mitigation ......................................................... 5-173 5.7 Revisions to the DEIR Alternatives Analysis ................................. 5-177 4 ALTERNATIVES ................................................................................. 5-178 4.1 Introduction .................................................................................. 5-178 4.2 Development of Alternatives Considered in this EIR ............... 5-179 4.2.1 Phase 1 screening of conceptual alternatives ..................... 5-179 4.2.2 DRERIP technical review, October 2012 ............................ 5-180 4.2.3 Phase 2 screening of conceptual alternatives ..................... 5-180 4.2.4 Selection of Proposed Project and EIR alternatives ............ 5-180 4.2.5 Alternatives considered and rejected .................................. 5-181 4.3 Alternatives Considered in this EIR ........................................... 5-182 4.4 Alternative 1: No Project ............................................................. 5-183 4.4.1 Description .......................................................................... 5-183 4.4.2 Environmental impacts ........................................................ 5-183 4.5 Alternative 2: Two Breaches and Weir ....................................... 5-188 4.5.1 Description .......................................................................... 5-188 4.5.2 Environmental impacts ........................................................ 5-192 4.6 Alternative 3: Three Breaches .................................................... 5-204 4.6.1 Description .......................................................................... 5-204 4.6.2 Environmental impacts ........................................................ 5-206 4.7 Comparison of Alternatives and Identification of Environmentally Superior Alternative..................................................................... 5-214 6 REFERENCES ............................................................................................. 6-1 7 ATTACHMENTS ........................................................................................ 7-12 February 2019 ii DRAFT Partial Recirculation of Draft Environmental Impact Report Prospect Island Tidal Habitat Restoration Project List of Tables Table 2.2-1. Restoration Activities and Features of the Proposed Project and Alternatives ....................................................................... 5-15 Table 2.2-2. Prospect Island Natural Communities: Existing, As-Built, and Future—Proposed Project