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Environmental Quality Control (EQC)

Congaree River Sediment Cleanup

Administrative Record

The documents listed below serve as DHEC’s Administrative Record for the assessment and cleanup alternatives evaluated for the Congaree River sediments and soils. These documents include investigation activities, sampling results, work plans, and cost analyses. This information is also available for review at the main branch of the Richland County Public Library located at 1431 Assembly Street, Columbia, SC 29201. Interested persons are encouraged to review these documents to learn more about this site.

January 2013
Summary of cleanup options evaluated by DHEC.
March 2012
Summary of all 5 phases of assessment and discussion of results.
September 2011
Assessment Report for Phase 5 Proposed Activities.
August 2011
Assessment Report for Phase 4 Proposed Activities.
Assessment Report for Phase 3 Proposed Activities.
December 2010
Assessment Report for Phase 2 Proposed Activities.
September 2010
Initial Assessment Work Plan to collect sediment samples in the Congaree River.
August 2002
Agreement between DHEC and South Carolina Electric & Gas for additional assessment and/or remediation at the site of the former Huger Street Manufactured Gas Plant (MGP)

For questions or additional information about this webpage, please contact Donna Moye, DHEC Public Participation Coordinator, at (803) 896-4281, or by e-mail at