Argonaut Mine Tailings Feasibility Study/Remedial Action Workplan

Argonaut Mine Tailings Feasibility Study/Remedial Action Workplan

The Department of Toxic Substances Control (DTSC) is in the process of approving the Argonaut Mine Tailings Site Feasibility Study/Remedial Action Plan (FS/RAP) for stormwater management immediately downstream of the Argonaut Dam (proposed project site) located in Jackson, California. The Proposed Project Site is located in the City of Jackson at the intersection of Argonaut Drive and Sutter Street. The Project would convey stormwater to Jackson Creek following the retrofit design of the Eastwood Concrete Multiple Arch (CMA) Dam located on the Argonaut Mine Site in Jackson, California. The Concrete Multiple Arch Dam, also known as the Argonaut Dam, was built in 1916 and stands 46 feet in height and spans over 400 feet in length. Argonaut Dam was constructed as part of a historical gold mining operation and has impounded arsenic-contaminated mine tailings as a result of sediment runoff from more than 50 acres of private land in the city of Jackson. The project aims to provide conveyance of stormwater to Jackson Creek. Activities associated with the Feasibility Study/Remedial Action Plan would occur over an approximately 3-month period.

Jackson

Amador

Citywide

California Air Resources Board (ARB), California Department of Fish and Wildlife, North Central Region 2 (CDFW), California Department of Forestry and Fire Protection (CAL FIRE), California Department of Parks and Recreation, California Department of Toxic Substances Control (DTSC), California Department of Transportation, District 6 (DOT), California Department of Transportation, Division of Aeronautics (DOT), California Department of Transportation, Division of Transportation Planning (DOT), California Department of Water Resources (DWR), California Highway Patrol (CHP), California Native American Heritage Commission (NAHC), California Natural Resources Agency, Central Valley Flood Protection Board, Office of Historic Preservation, Sierra Nevada Conservancy, State Water Resources Control Board, Division of Drinking Water, State Water Resources Control Board, Divison of Financial Assistance, California Regional Water Quality Control Board, Central Valley Sacramento Region 5 (RWQCB)

California Regional Water Quality Control Board, Central Valley Sacramento Region 5 (RWQCB)

Other (stormwater infrastructure )

stormwater infrastructure

Aesthetics, Agriculture and Forestry Resources, Air Quality, Biological Resources, Cultural Resources, Cumulative Effects, Drainage/Absorption, Energy, Flood Plain/Flooding, Geology/Soils, Greenhouse Gas Emissions, Growth Inducement, Hazards & Hazardous Materials, Hydrology/Water Quality, Land Use/Planning, Mandatory Findings of Significance, Mineral Resources, Noise, Population/Housing, Public Services, Recreation, Schools/Universities, Solid Waste, Transportation, Tribal Cultural Resources, Utilities/Service Systems, Vegetation, Wetland/Riparian, Wildfire