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Final Interim Remedial Investigation Data Summary Report Approved by SCDHEC

December 31, 2018 by Westinghouse Electric Company
Categories: Columbia Community

The South Carolina Department of Health and Environmental Control (SCDHEC) has reviewed and approved the final interim remedial investigation (RI) data summary report related to our Consent Agreement (CA). DHEC and CFFF entered a Consent Agreement to comprehensively evaluate potential environmental impacts from current and historical operations, including an additional assessment of the known effects. The agreement abides by EPA Comprehensive Environmental Response and Liability process (CERCLA)

The remedial investigation is an iterative data-driven process and an essential first phase in the CA designed to determine the source, nature, and extent of all COPCs. We submitted Phase I of this report on July 15th, which included investigative actions performed from June 2019 through January 2020. The investigation evaluated the extent of previously identified groundwater impacts; areas of the plant operations that had not been previously assessed; potential surface water and sediment impacts; potential sources of Tc-99 soil impacts, the depths of surface water bodies and private water supply wells.

The executive summary provides several conclusions, including:

Our next stage is submitting the second phase (Phase II) of the RI work plan to SCDHEC, which will contain additional investigative measures stipulated in the CA.

The completion of Phase I puts Westinghouse one step closer to building a stronger culture by aligning our company goals and values with our operations to achieve world-class quality while operating in a safe, transparent, environmentally sound, and socially responsible manner.