USG Plaster City Quarry Expansion and Well No. 3 Project

USG Plaster City Quarry Expansion and Well No. 3 Project

The proposed project consists of approval of a Conditional Use Permit from Imperial County for the development of a new production well, Well No. 3, and an associated pipeline to provide water to the USG Quarry. Additional land use entitlements from the County are not needed for mining and reclamation activities under the Quarry expansion. However, because Well No. 3 would provide water to support Quarry operations, the DSEIR evaluates potential environmental impacts associated with mining and reclamation activities under the Quarry expansion, for full disclosure and to provide the appropriate CEQA review for responsible agencies. The DSEIR also evaluates potential environmental impacts associated with the restoration of the Viking Ranch site (207 acres) and preservation of the Old Kane Springs Road site (121 acres). USG identified these sites for preservation to provide compensatory mitigation for impacts to 139 acres of waters of the United States at the Quarry. Although the Viking Ranch restoration site and Old Kane Springs Road preservation site would not require entitlements from Imperial County, the DSEIR evaluates the environmental impacts of these actions for full disclosure and to provide the appropriate CEQA review for responsible agencies.

Imperial, San Diego

Southern California, Unincorporated

California Air Resources Board (ARB), California Department of Conservation (DOC), California Department of Fish and Wildlife, Inland Deserts Region 6 (CDFW), California Department of Parks and Recreation, California Department of Resources Recycling and Recovery, California Department of Transportation, District 11 (DOT), California Department of Water Resources (DWR), California Native American Heritage Commission (NAHC), California Natural Resources Agency, California Public Utilities Commission (CPUC), California Regional Water Quality Control Board, Colorado River Basin Region 7 (RWQCB), California Regional Water Quality Control Board, San Diego Region 9 (RWQCB), Colorado River Board, Department of Toxic Substances Control, Office of Historic Preservation, State Water Resources Control Board, Division of Drinking Water, State Water Resources Control Board, Division of Water Rights, California Department of Fish and Wildlife, South Coast Region 5 (CDFW)

California Department of Fish and Wildlife, South Coast Region 5 (CDFW)

Water Facilities (Well and 3.5 mile water line)(Type Well and pipe, MGD 0.023), Mining (Mineral gypsum), Other (Restoration)

Use Permit, Major Grading Permit

Air Quality, Biological Resources, Cultural Resources, Cumulative Effects, Drainage/Absorption, Greenhouse Gas Emissions, Hydrology/Water Quality, Land Use/Planning, Tribal Cultural Resources, Vegetation, Wetland/Riparian