Health Consultation: Evaluation of Indoor Air Settlement Program Data on Tetrachloroethane, Schlage Lock Company, Security, El Paso County, Colorado. EPA Facility ID: COD082657420, December 10, 2008.

摘要

Schlage Lock Company (Schlage) operates a manufacturing facility in Security, Colorado. In the late 1980s, the organic solvent tetrachloroethene, or PCE, was discovered in the subsurface soil on their property. Further investigation revealed that PCE had migrated to the Widefield Aquifer, which is a source of drinking water for the surrounding communities of Security, Widefield, and Fountain. Schlage entered into a Compliance Order on Consent with the Hazardous Waste and Waste Management Division of the Colorado Department of Public Health and Environment (CDPHE) in June 1990, which was amended in August 1998, and a variety of remedial measures have occurred since that time to remove PCE from the Widefield Aquifer. Remedial actions appear to be working as marked decreases of PCE in the aquifer have been measured. Clean-up and removal of PCE is ongoing. On January 8, 2007, Schlage Lock entered into a class action settlement. As part of the settlement agreement, residents were offered the opportunity to have their indoor air tested for PCE. A total of 115 homeowners responded and requested an indoor air test. Two area schools were also evaluated as part of a separate agreement between Schlage Lock and the Widefield School District.