Under the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA), the U.S. Department of the Interior (DOI), in cooperation with the California Department of Toxic Substances Control (DTSC), has completed a Five-Year Review process that reviewed the groundwater remedy implemented at the Topock Compressor Station in San Bernardino County, California.
The selected remedy for groundwater includes the use of in-situ treatment with fresh water flushing for groundwater contamination associated with Solid Waste Management Unit (SWMU) 1/Area of Concern (AOC) 1 and AOC 10.
The purpose of the Five-Year Review is to ensure that the implemented remedy functions as intended and is protective of human health and the environment. Five-Year Reviews will continue for the life of the site until hazardous substances, pollutants, or contaminants no longer remain on-site at levels that do not allow for unlimited use and unrestricted exposure.
The Public Notice of Completion can be found here.
The First Five-Year Review on the Groundwater Remedy can be found here.