Region 8
Superfund Program
National Information
Regional Information
Site Information
National Priorities List (NPL) History
Proposed Date
12/30/1982
Final Date
9/8/1983
Construction Completion Date
9/29/1994
Deletion Date
12/20/1996
Sand Creek Industrial
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Site Type: Deleted NPL City: Commerce City County: Adams Street Address: 33rd and Dahlia Zip Code: 80022 EPA ID: COD980717953 SSID: 0814 Site Aliases: Acid Neutralization Pits (L-C Corp.), others Congressional Districts: 1, 7 |
Site Description
The Sand Creek Industrial site occupies about 550 acres in Denver and Commerce City, Colorado. Four sources of contamination, all now inactive, were known to exist: an oil refinery, a pesticide manufacturing facility, acid pits and a landfill.
EPA conducted sampling at the site and found the soil and groundwater contaminated with volatile organic compounds (VOCs), pesticides, herbicides and arsenic. Exposure to such contaminated groundwater or soil could cause serious health problems, such as cancer and damage to the liver, central nervous and respiratory systems. People also could be exposed by inhaling contaminated dust and vapors. EPA proposed the site for the Superfund National Priorities List (NPL) in December 1982 and added the site in September 1983. It was deleted from the NPL in December 1996 after completion of the cleanup. Various parcels of land have recently been sold for redevelopment.
Post-Construction Activities
Current operation and maintenance (O&M) activities include:
- Operating the landfill system
- Maintaining the fence around the landfill
- Maintaining the vegetative cover over the landfill
- Monitoring groundwater throughout the site
Site Risk
Results of the most recent five-year review completed September 17, 2010 indicated that the remedy currently protects human health and the environment.
| Media Affected | Contaminants | Source of Contamination |
| soil, solid waste, liquid waste, groundwater, surface water, air, debris | VOCs, pesticides, herbicides and arsenic | an oil refinery, a pesticide manufacturing facility, acid pits and a landfill |
Cleanup Progress
Cleanup Completed
These cleanup activities have been completed:
- Installation of a methane gas collection/treatment system at the landfill in 1991
- Removal of four buildings, four rail cars, two concrete tanks and 13 steel tanks in 1992
- Treatment of subsurface soils, using soil vapor extraction in 1994
- Removal of oily liquids floating on groundwater in two localized areas, using dual vapor extraction in 1995
- Treatment of surface soils, using low temperature thermal treatment in 1994
Community Involvement
Community comment was solicited for the five-year review completed in September 2010. The next five-year review will be completed by September 2015.
Site Documents
Annual Update to the Five-Year Review, July 2011 (PDF, 1 pg, 17K, About PDF)
Fourth Five-Year Review Report, September 2010 (PDF, 108 pp, 4.3MB, About PDF)
Contacts
EPA
Armando Saenz
EPA Superfund Project Manager
U.S. Environmental Protection Agency, Region 8
1595 Wynkoop Street (8EPR-SR)
Denver, CO 80202-1129
303-312-6559 or
800-227-8917 ext. 312-6559 (toll free Region 8 only)
saenz.armando@epa.gov
CDPHE
Fonda Apostolopoulos
State Project Officer
Colorado Department of Public Health and Environment
4300 Cherry Creek Drive South
Denver, CO 80246-1530
303-692-3411
888-569-1831 ext. 3411 (toll free)
fonda.apostolopoulos@state.co.us
Warren Smith
Community Involvement Manager
Colorado Department of Public Health and Environment
4300 Cherry Creek Drive South
Denver, CO 80246-1530
303-692-3373
888-569-1831 ext. 3373 (toll free)
warren.smith@state.co.us
View Documents at:
EPA Superfund Records Center
1595 Wynkoop Street
Denver, CO 80202-1129
303-312-6473 or
800-227-8917 ext. 312-6473 (toll free Region 8 only)
Colorado Department of Public Health and Environment
Hazardous Material and Waste Management Division
4300 Cherry Creek Drive South
Denver, CO 80246-1530
303-629-3331
888-569-1831 (toll free)