09/24/2021 | Press release | Distributed by Public on 09/24/2021 12:30
COMMONWEALTH OF PENNSYLVANIA
Dept. of Environmental Protection
Commonwealth News Bureau
Room 308, Main Capitol Building
Harrisburg PA., 17120
Jamar Thrasher, DEP
717-319-1758
Norristown, PA - The Pennsylvania Department of Environmental Protection (DEP), under the authority of the Hazardous Sites Cleanup Act, is proposing a remedial response action to address soil, groundwater, and surface water contamination, and an impacted residential drinking water supply at the site of the former Bishop Tube facility in East Whiteland Township, Chester County.
Several industrial businesses manufactured stainless steel tubes at the 13.7-acre Bishop Tube HSCA Site from the 1950s until 1999. Trichloroethylene (TCE) is considered the primary site-related contaminant of concern because its concentrations within soil, groundwater, and surface water are generally higher than other chlorinated solvents at the site and it poses the most substantial threat to human health and the environment. TCE is a commercial-grade solvent that was commonly used as a degreasing agent for manufactured metal parts. Besides being a known carcinogen, prolonged exposure to TCE can result in serious neurological, cardiac, reproductive, and developmental health problems.
DEP is proposing to remediate the site to a combination of background, statewide health, and site-specific standards in accordance with the Land Recycling Program. After considering several courses of action, DEP is proposing a combination of in situ chemical injections, soil mixing, engineering practices, institutional controls, and long-term monitoring to address the soil, groundwater and surface water contamination. The residences with the impacted well would be connected to an existing public water line.
The injection of chemical oxidants creates a chemical reaction that destroys harmful contaminants and produces harmless byproducts. It is commonly described as "in situ" because it is conducted in place, without having to excavate soil or pump out groundwater for aboveground cleanup.
"The combination and implementation of these proposed measures would protect public health and the environment," said DEP Secretary Patrick McDonnell. "This plan is also more cost-effective than other considered alternatives. The total estimated cost of the proposed final remedial response action is $8.1 million."
###