Elmendorf Air Force Base

NPL Site
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Greater Anchorage Borough, AK

According to the EPA Superfund Enterprise Management System, Elmendorf Air Force Base in Greater Anchorage Borough, AK is listed with NPL status NPL Site. Its Hazard Ranking System (HRS) score is 45.91. The public extract catalogs 65 contaminant records for this site. 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 Alaska environmental agency.

What is the cleanup status of this Superfund site?

NPL Status
NPL Site
Federal Facility
No
Construction Complete
No
HRS Score
45.91
Deleted from NPL
No

Contaminants

Contaminant Media
1,1,1-TRICHLOROETHANE Groundwater
1,1,2,2-TETRACHLOROETHANE Groundwater
1,1,2-TRICHLOROETHANE Groundwater
1,1-DICHLOROETHENE Groundwater
1,1-DICHLOROETHENE Soil
1,2-DIBROMOETHANE Groundwater
1,2-DICHLOROETHANE Groundwater
AROCLOR 1016 Soil
AROCLOR 1260 Groundwater
AROCLOR 1260 Soil
ARSENIC Groundwater
ARSENIC Soil
ARSENIC Surface Water
BENZENE Groundwater
BENZENE Soil
BENZENE Surface Water
BENZO(B)FLUORANTHENE Soil
BENZO(K)FLUORANTHENE Soil
BENZO[A]ANTHRACENE Soil
BENZO[A]PYRENE Soil
BERYLLIUM Groundwater
BIS(2-ETHYLHEXYL)PHTHALATE Groundwater
CARBON TETRACHLORIDE Groundwater
CHLOROETHENE (VINYL CHLORIDE) Groundwater
CHLOROFORM Groundwater
CHLOROMETHANE Groundwater
CIS-1,2-DICHLOROETHENE Groundwater
CIS-1,2-DICHLOROETHENE Sediment
CIS-1,2-DICHLOROETHENE Soil
DIBENZO(A,H)ANTHRACENE Soil
DICHLOROMETHANE (METHYLENE CHLORIDE) Groundwater
DIELDRIN Groundwater
DIESEL FUEL Soil
ETHYLBENZENE Groundwater
ETHYLBENZENE Soil
ETHYLBENZENE Surface Water
GASOLINE Groundwater
GASOLINE Soil
INDENO(1,2,3-CD)PYRENE Soil
LEAD Groundwater
LEAD Sediment
LEAD Soil
MANGANESE Groundwater
MANGANESE Surface Water
MERCURY Soil
ORGANICS Groundwater
TETRACHLOROETHENE Groundwater
TETRACHLOROETHENE Soil
THALLIUM Groundwater
THALLIUM Surface Water
TOLUENE Groundwater
TOLUENE Soil
TOLUENE Surface Water
TOTAL PETROLEUM HYDROCARBONS (TPH) Groundwater
TOTAL PETROLEUM HYDROCARBONS (TPH) Sediment
TOTAL PETROLEUM HYDROCARBONS (TPH) Soil
TOTAL PETROLEUM HYDROCARBONS (TPH) Surface Water
TRICHLOROETHENE Groundwater
TRICHLOROETHENE Sediment
TRICHLOROETHENE Soil
TRICHLOROETHENE Soil Gas
VOC Soil
XYLENE (MIXED ISOMERS) Groundwater
XYLENE (MIXED ISOMERS) Soil
XYLENE (MIXED ISOMERS) Surface Water

Location

City
Greater Anchorage Borough
State
Coordinates
61.2542, -149.7917

Other Superfund Sites in Alaska

Site Name Status HRS Score
Adak Naval Air Station NPL Site 51.37
Alaska Battery Enterprises Deleted NPL Site 30.98
Arctic Surplus Deleted NPL Site 42.24
Eielson Air Force Base NPL Site 48.14
Fort Richardson (USARMY) NPL Site 50.00
Fort Wainwright NPL Site 42.40
Salt Chuck Mine NPL Site 50.00
Standard Steel & Metal Salvage Yard (USDOT) Deleted NPL Site 46.25

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

Of the 9 Alaska Superfund sites with a scored Hazard Ranking System (HRS) evaluation, Elmendorf Air Force Base ranks #6 by score (45.91).

Either side of it: Eielson Air Force Base (48.14), Standard Steel & Metal Salvage Yard (USDOT) (46.25), Fort Wainwright (42.40), Arctic Surplus (42.24)

Frequently Asked Questions

What is the Elmendorf Air Force Base Superfund site?
Elmendorf Air Force Base is an active National Priorities List (NPL) Superfund site located in Greater Anchorage Borough, AK. It has a Hazard Ranking System (HRS) score of 45.91 (rank #6 of 9 scored Alaska sites). Superfund sites are contaminated locations identified by the EPA for long-term cleanup under CERCLA.
What does NPL listing mean for Elmendorf Air Force Base?
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. Construction-complete status is not marked in the EPA record for 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 Elmendorf Air Force Base?
Elmendorf Air Force Base's Hazard Ranking System (HRS) score is 45.91, placing it #6 of 9 Alaska Superfund sites with a scored HRS evaluation. 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 Elmendorf Air Force Base site?
The EPA public Superfund extract catalogs 65 contaminants at Elmendorf Air Force Base, 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 Elmendorf Air Force Base?
Elmendorf Air Force Base is currently NPL Site on the National Priorities List. 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