ASTSWMO’s Sediments Focus Group developed this report to evaluate efforts coordinated across CERCLA and Clean Water Act authorities that were aimed at preventing sediment recontamination. The Focus Group presents several case studies of CERCLA sites that involve a component of sediment remediation through which to explore application of collaborative recommendations jointly developed by several EPA offices.
The ASTSWMO Sediments Focus Group developed this report for environmental authorities over both the CWA and Comprehensive Environmental Response, Compensation and Liability Act (CERCLA) in a jurisdiction including State, federal, Territorial and/or tribal decision makers. This paper suggests a planning method to help identify possible sources of pollutants that could prevent a site from reaching remedial cleanup levels, remedial action objectives and/or from being recontaminated following the implementation of a successful remedial action.
The ASTSWMO Sediments Focus Group has produced this document that discusses causes and issues related to recontamination. Discussion topics include new contamination of sediment sites from both known sources and newly identified sources, including contamination from new chemicals or those not addressed in previous assessments, and identification of pollutants most commonly found in areas where recontamination has occurred. Also included are case studies at sediment remediation sites where inadequate source control and/or recontamination have been documented after remedy efforts have commenced.