Butterfield and Sentinel Quarry Expansion

Butterfield and Sentinel Quarry Expansion

The project is the proposed expansion of Omya's Butterfield and Sentinel Limestone Quarries. The project includes expansion of existing Butterfield and Sentinel quarries, expansion of associated overburden placement sites, additional internal access roads and ancillary facility areas. The project does not include any new quarries, new haul roads or new overburden sites. The proposed expansion would include 30.6 acres of new disturbance at the Butterfield Quarry, and 64.3 acres of new disturbance at the Sentinel Quarry area (94.9 total area of new disturbance). The expansion would add an additional 40-years life to the Butterfield quarry and an additional 20-years life to the Sentinel Quarry.

Big Bear Lake

San Bernardino

Mining (Limestone)

Use Permit, rec plan/POO

Aesthetics, Air Quality, Biological Resources, Cultural Resources, Cumulative Effects, Drainage/Absorption, Geology/Soils, Hazards & Hazardous Materials, Hydrology/Water Quality, Mineral Resources, Noise, Recreation, Wetland/Riparian, Wildfire

Air Resources Board, Major Industrial Projects, Cal Fire, California Department of Conservation (DOC), California Department of Parks and Recreation, California Department of Transportation, District 8 (DOT), California Native American Heritage Commission (NAHC), California Regional Water Quality Control Board, Colorado River Basin Region 7 (RWQCB), Colorado River Board, Department of Fish and Wildlife, Region 6, Department of Water Resources, Office of Historic Preservation, Resources Agency, Resources, Recycling and Recovery