Superfund Site: PARA-CHEM SOUTHERN, INC., SIMPSONVILLE, SC
Superfund Site Profile
The Para-Chem Southern, Inc. site includes an active adhesives manufacturing facility on a 140.43-acre property located in Greenville County, Simpsonville, South Carolina. Para-Chem Southern, Inc. began operating the facility in 1965. Operations were transferred to Royal Adhesives and Sealants, LLC on December 13, 2010. Royal Adhesives and Sealants, LLC currently operates the adhesive manufacturing plant and is responsible for implementing the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) activities.
The EPA included the site on the Superfund National Priorities List (NPL) in 1990 due to contaminated groundwater, soil and surface water resulting from past waste disposal practices at the facility.
The EPA, the South Carolina Department of Health and Environmental Control (SCDHEC), and the site’s potentially responsible party (PRP) have investigated site conditions and taken steps to clean up the site in order to protect people and the environment from contamination. A water line connects the on-site facility to the public water supply. Site contamination does not currently threaten people living and working near the site. By treating and monitoring groundwater, placing institutional controls on the site property, and undertaking Five-Year Reviews, the EPA, SCDHEC and the site’s PRP continue to protect people and the environment from site contamination.
TOPICS IN FOCUS
At this time, the remedy at the Para-Chem Southern Inc. site currently protects human health and the environment because highly contaminated sludge and soil have been excavated and removed, groundwater recovery and treatment continues to effectively prevent downgradient migration and reduce contaminant concentrations in groundwater, and institutional controls have been implemented to restrict groundwater and soil exposure pathways.
However, in order to achieve the long term groundwater clean up goals, the groundwater extraction and treatment system must continue to be optimized and monitored. One current focus is on indentifying and treating residual source material that remains in the subsurface in order to reduce the mass of contaminants migrating to groundwater. To that end, three in-situ chemical oxidation systems (ISCO) are currently operating in conjunction with the groundwater extraction and treatment system. The purpose of the ISCO systems, which are part of a treatability study, is to determine whether ISCO is an effective method of reducting chlorinated solvents in the shallow saturating soil zone. The clean up team has made improvements to the extracting system to optimize the efficiency fo the system.
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