Program Environmental Impact Report for Humboldt Bay Sediment Management

Program Environmental Impact Report for Humboldt Bay Sediment Management

This Draft PEIR assesses the potential environmental effects of implementing the Humboldt Bay Sediment Management Program. This PEIR explores four alternatives and provides an environmental analysis of dredging methods, sediment processing, and sediment placement at beneficial use sites that will guide implementation of the Coastal Regional Sediment Management Plan for the Eureka Littoral Cell and steer sediment management for Locally Maintained Sites (LMS). The Project is located in Humboldt Bay and consists of 25 sites where dredging may occur, three sites where sediment may be dewatered and temporarily stockpiled and 76 sites where sediment may be beneficially used. Under Alternative 1 the method of sediment removal at LMSs would be suction dredging only and Alternative 2 considers only using clamshell bucket dredging for sediment removal. Under Alternative 3 the method of dredging may be either via suction or clamshell bucket dredging. In this scenario, dewatering and stockpiling of sediments at upland locations for future transport to a beneficial use site would not be conducted. Sediment would be piped directly to beneficial use sites, under this Alternative. The No-Project Alternative assumes that LMSs would continue to be dredged by their respective responsible entities, but there would be no comprehensive plan for dredging LMSs in Humboldt Bay. Dredged sediments would likely continue to be disposed of at the HOODS rather than used for beneficial projects around the bay.

Arcata, Eureka

Humboldt

California Air Resources Board (ARB), California Coastal Commission (CCC), California Department of Conservation (DOC), California Department of Fish and Wildlife, Marin Region 7 (CDFW), California Department of Fish and Wildlife, Northern and Eureka Region 1 (CDFW), California Department of Forestry and Fire Protection (CAL FIRE), California Department of Parks and Recreation, California Department of State Parks, Division of Boating and Waterways, California Department of Toxic Substances Control (DTSC), California Department of Transportation, District 1 (DOT), California Department of Transportation, Division of Aeronautics (DOT), California Department of Water Resources (DWR), California Governor's Office of Emergency Services (OES), California Highway Patrol (CHP), California Native American Heritage Commission (NAHC), California Natural Resources Agency, California Regional Water Quality Control Board, North Coast Region 1 (RWQCB), California State Lands Commission (SLC), Office of Historic Preservation, State Water Resources Control Board, Division of Water Quality