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National Information |
National Priorities List (NPL) HistoryProposed Date Final Date |
Superfund Program
Chemical Sales Company
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Site Type: Completed NPL |
Site Description
The Chemical Sales Company (CSC) site covers about five square miles in a mainly light- industrial area of northeastern Denver. The company was a wholesale distributor of commercial/industrial chemicals, detergents and water leisure products.
Groundwater studies by EPA led to the discovery of CSC as a source of contamination in the area by volatile organic compounds (VOCs). The 1990 Risk Assessment showed that use of the contaminated ground water for drinking, cooking or bathing could increase the chance of developing cancer. Breathing indoor air poses a potential risk if residents use the contaminated water for showering, bathing or cooking.
The next five-year review is due by the end of 2012.
EPA proposed the CSC site for its National Priorities List in June 1988 and finalized the listing in August 1990.
Site Risk
| Media Affected | Contaminants | Source of Contamination |
| Ground water, air, soil, liquid waste, solid waste | DCA, DCE, total 1, 2-DCE, TCA, TCE, PCE, BZ, VC | Distributor of commercial/industrial chemicals, detergents and water leisure products |
Cleanup Progress
These cleanup activities have been completed:- Connection of over 400 residences to the South Adams County Water and Sanitation District (SACWSD) municipal supply in 1986, 1992 and 1995.
- Construction of the Klein Treatment Plant for SACWSD in 1989.
- Removal of leaking and corroded drums from the CSC property in 1989.
- Construction of an air sparging/soil-vapor extraction system in 2000 to clean up the source area.
Site Documents
The documents below are Adobe PDF files (about PDF files)Annual Update to the Five-Year Review December 2007 (PDF, 3 pp, 43K)
Five-Year Review, August 2007 (PDF, 65 pp, 2.24 MB)
Community Involvement
Community comment was solicited for the five-year review completed in August 2007.Contacts
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EPA Armando Saenz John Dalton |
Colorado Jeannine Natterman Fonda Apostolopoulos |
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View Documents at: EPA Superfund Records Center Colorado Dept. Public Health & Environment (CDPHE) |
