Air Force Plant PJKS

NPL Site
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Waterton, CO

According to the EPA Superfund Enterprise Management System, Air Force Plant PJKS in Waterton, CO is listed with NPL status NPL Site. Its Hazard Ranking System (HRS) score is 42.93. The public extract catalogs 10 contaminant records for this site. EPA marks construction of the cleanup remedy as complete. NPL listing is a cleanup-authority designation, not a measured health-risk score.

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Superfund National Priorities List inclusion (status and HRS score shown above) is the EPA's formal designation that a contaminated site qualifies for long-term federal cleanup authority under the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA). A federal-facility classification means the site is owned or operated by a federal agency, which routes cleanup responsibility differently than a privately owned site.

"Construction Complete" (status shown above) is an EPA milestone marking that the physical remedy work is finished, not that the site has exited EPA oversight; long-term monitoring can continue afterward. Deletion from the NPL is a separate, later step the EPA takes only once it determines every planned response action is finished.

NPL listing is a cleanup-authority designation in the EPA record, not a quantitative health-risk score. HRS scores of 28.50 or above qualify a site for the NPL under the EPA screening model (toxicity, pathways, waste quantity, and affected population factors). For current site conditions and official community notices, see the EPA Regional Superfund profile and the Colorado environmental agency.

What is the cleanup status of this Superfund site?

NPL Status
NPL Site
Federal Facility
No
Construction Complete
Yes
HRS Score
42.93
Deleted from NPL
No

Contaminants

Contaminant Media
1,1-DICHLOROETHENE Groundwater
AROCLOR 1016 Soil
AROCLOR 1254 Soil
AROCLOR 1260 Soil
CHLOROETHENE (VINYL CHLORIDE) Groundwater
CIS-1,2-DICHLOROETHENE Groundwater
N-NITROSODIMETHYLAMINE Groundwater
POLYCHLORINATED BIPHENYLS (PCBs) Soil
TRANS-1,2-DICHLOROETHENE Groundwater
TRICHLOROETHENE Groundwater

Location

City
Waterton
Coordinates
39.5142, -105.1337

Other Superfund Sites in Colorado

Site Name Status HRS Score
Bonita Peak Mining District NPL Site 50.00
Broderick Wood Products NPL Site 35.13
California Gulch NPL Site 55.84
Captain Jack Mill NPL Site 50.56
Central City, Clear Creek NPL Site 51.39
Chemical Sales Co. NPL Site 37.93
Colorado Smelter NPL Site 50.00
Denver Radium Site NPL Site 44.11
Eagle Mine NPL Site 47.19
Lincoln Park NPL Site 31.31

How does this site's HRS score compare in Colorado?

Of the 24 Colorado Superfund sites with a scored Hazard Ranking System (HRS) evaluation, Air Force Plant PJKS ranks #19 by score (42.93).

Either side of it: Denver Radium Site (44.11), Uravan Uranium Project (Union Carbide Corp.) (43.53), Chemical Sales Co. (37.93), Broderick Wood Products (35.13)

Frequently Asked Questions

What is the Air Force Plant PJKS Superfund site?
Air Force Plant PJKS, in Waterton, CO, sits toward the lower end of Colorado's Hazard Ranking System scores (HRS 42.93, rank #19 of 24 scored sites) among the state's Superfund sites. A lower HRS rank within the state does not mean no cleanup obligation -- Superfund sites are contaminated locations identified by the EPA for long-term cleanup under CERCLA regardless of relative score.
What does NPL listing mean for Air Force Plant PJKS?
According to the EPA, National Priorities List (NPL) listing designates a site for long-term federal Superfund cleanup authority. It is a programmatic status in the Superfund Enterprise Management System, not a quantitative health-risk score for nearby residents. EPA records mark construction of the cleanup remedy as complete at this site. Site-specific conditions and community guidance are published by EPA Regional Superfund offices and the relevant state environmental agency.
What is the HRS score for Air Force Plant PJKS?
Air Force Plant PJKS's Hazard Ranking System (HRS) score is 42.93, placing it #19 of 24 Colorado Superfund sites with a scored HRS evaluation -- among the lower-scored sites in the state. Sites with a score of 28.50 or greater qualify for the NPL; the model weighs contaminant toxicity, waste quantity, release likelihood, and affected population, and is not a community health diagnosis.
What contaminants are at the Air Force Plant PJKS site?
The EPA public Superfund extract catalogs 10 contaminants at Air Force Plant PJKS, documented through the remedial investigation process. Counts reflect listed records in that extract, not a complete inventory of every substance ever present.
What is the cleanup status of Air Force Plant PJKS?
Air Force Plant PJKS is currently NPL Site on the National Priorities List. Construction of the cleanup remedy has been completed. The EPA Superfund cleanup process includes phases from preliminary assessment through post-construction completion.

NPL listing is a cleanup-authority designation in the EPA record, not a quantitative health-risk score. See Superfund Sites Explained for how the National Priorities List, Hazard Ranking System, and cleanup phases work.

Related

Data sourced from the U.S. Environmental Protection Agency (EPA). See our methodology for details. Retrieved and formatted by PlainEnviro