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Malvern TCE

U.S. Environmental Protection Agency Announces Record of Decision for the Malvern TCE Superfund Site On November 26, 1997, the U.S. Environmental Protection Agency (EPA) issued the Record of Decision (ROD) for the Malvern TCE Superfund Site located in East Whiteland Township, Chester County, PA. The ROD details the final selected remedy for the site. The remedy includes the following major components:

Water Supply
Installation of a waterline to prevent contact with groundwater contamination at residences affected or potentially affected by the Site.
Main Plant Area Soils
Installation of a cap to prevent direct contact with contaminated soils at the Main Plant and to reduce the potential migration of these contaminants to the groundwater.
Main Plant Area Groundwater Plume
Extraction and treatment of groundwater via air stripping followed by carbon adsorption or ultraviolet oxidation and subsequent reinjection of treated water to the aquifer to restore the Site groundwater to beneficial use by reducing contaminated concentrations to Maximum Contaminant Levels established by the Safe Drinking Water Act.
Former Disposal Area/Mounded Area Soils
Excavation, off-site treatment and disposal of contaminated soils to reduce the potential for continued migration of contaminants in these soils to groundwater.
Former Disposal Area/Mounded Area Groundwater Plume
Implementation of a natural attenuation program to monitor reduction of contaminant concentrations in groundwater to Maximum Contaminant Levels established by the Safe Drinking Water Act.

These remedial actions were selected in accordance with the Comprehensive Environmental Response, Compensation, and Liability Act of 1980 (CERCLA), as amended by the Superfund Amendments and Reauthorization Act of 1986 (SARA) and the National Oil and Substances Pollution Contingency Plan (NCP). The EPA believes that the selected remedy will comply with all federal and state requirements that are legally applicable or relevant and appropriate to the remedial action. The selected remedy utilizes a cost effective, permanent solution to the maximum extent practicable and satisfies the statutory preference for a remedy that reduces toxicity, mobility, or volume while protecting human health and the environment. 

Because this remedy will result in hazardous substances remaining on-site, above health-based levels, a review by the EPA will be conducted within five years after initiation of the remedial action to ensure that the remedy continues to provide adequate protection of human health and the environment. 

The Administrative Record is available for review at:

Chester County Library 
400 Exton Square Parkway 
Exton, PA 19341 
610-363-0884 

U.S. EPA Region III Library 
1650 Arch St.
Philadelphia, PA 19103-2029
Hours: 8:00 a.m. to 4:00 p.m., 
Monday - Friday 
Contact: Ms. Anna Butch
215-814-3157
butch.anna@epa.gov

For More Information, Contact:

Ms. Linda Dietz
Remedial Project Manager, 3HW21 
215-814-3195
dietz.linda@epa.gov
U.S. EPA Region III 
1650 Arch St.
Philadelphia, PA 19103-2029

Mr. David B. Polish
Community Involvement Coordinator, 3HW43 
215-814-3327
polish.david@epa.gov
U.S. EPA Region III 
1650 Arch St.
Philadelphia, PA 19103-2029

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