Former Colton Manufactured Gas Plant

Former Colton Manufactured Gas Plant

The Gas Company has submitted a Removal Action Workplan (RAW) for remediation of contaminated soils at the Former Colton Manufactured Gas Plant (MGP) site (herein referred to as the Site). The Gas Company has submitted the RAW to the Department of Toxic Substances Control (DTSC) to comply in part with the Voluntary Cleanup Agreement (VCA), Docket No. HAS-A 00/01-230, issued by the DTSC to the The Gas Company dated March 2004, and under the authority of Chapter 6.5 of the California Health and Safety Code. The proposed remediation action will involve: excavation and removal of contaminated soils; transport of contaminated soils to an off-site treatment facility; and, backfilling of the site with clean soils. The site encompasses an area of approximately 8.5 acres, of which approximately 99,000 square feet (approximately 2.5 acres) will be excavated. The excavation depths would range from 1 to 6 feet below ground surface (bgs). The average depth of soils to be excavated is 4 feet bgs. The total amount of excavated soils is expected to be approximately 21,000 tons or 15,000 cubic yards.

Colton

San Bernardino

California Department of Parks and Recreation, California Department of Transportation, District 8 (DOT), California Highway Patrol, California Regional Water Quality Control Board, Los Angeles Region 4 (RWQCB), Department of Fish and Wildlife, Region 6, Department of Water Resources, Office of Historic Preservation, Resources Agency, California Native American Heritage Commission (NAHC)

California Native American Heritage Commission (NAHC)

Other (Restore land to near current conditions)

Removal Action

Aesthetics, Agriculture and Forestry Resources, Air Quality, Cultural Resources, Cumulative Effects, Flood Plain/Flooding, Geology/Soils, Hazards & Hazardous Materials, Hydrology/Water Quality, Land Use/Planning, Mineral Resources, Noise, Population/Housing, Public Services, Recreation, Transportation, Wetland/Riparian, Wildlife