Alameda Naval Air Station

NPL Site
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Alameda, CA

According to the EPA Superfund Enterprise Management System, Alameda Naval Air Station in Alameda, CA is listed with NPL status NPL Site. Its Hazard Ranking System (HRS) score is 50.00. The public extract catalogs 106 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 California environmental agency.

What is the cleanup status of this Superfund site?

NPL Status
NPL Site
Federal Facility
No
Construction Complete
No
HRS Score
50.00
Deleted from NPL
No

Contaminants

Contaminant Media
1,1-DICHLOROETHANE Groundwater
1,1-DICHLOROETHENE Groundwater
1,1-DICHLOROETHENE Surface Water
1,2,4-TRIMETHYLBENZENE Soil
1,2-DICHLOROETHANE Groundwater
1,2-DICHLOROETHENE (CIS AND TRANS MIXTURE) Groundwater
1,2-DIHYDROACENAPHTHYLENE Soil
1,3-DICHLOROBENZENE Groundwater
1,4-DICHLOROBENZENE Groundwater
1,4-DICHLOROBENZENE Soil
2,4-DIMETHYLPHENOL Surface Water
2-METHOXY-2-METHYLPROPANE (MTBE) Groundwater
2-METHYLNAPHTHALENE Soil
9H-CARBAZOLE Soil
9H-FLUORENE Soil
ACENAPHTHYLENE Soil
ALDRIN Groundwater
ALDRIN Soil
ALPHA-CHLORDANE Groundwater
ALPHA-HEXACHLOROCYCLOHEXANE Groundwater
ANTHRACENE Soil
AROCLOR 1016 Soil
AROCLOR 1254 Soil
AROCLOR 1260 Soil
ARSENIC Groundwater
ARSENIC Soil
BENZENE Groundwater
BENZENE Surface Water
BENZO(B)FLUORANTHENE Soil
BENZO(GHI)PERYLENE Soil
BENZO(K)FLUORANTHENE Soil
BENZO[A]ANTHRACENE Soil
BENZO[A]PYRENE Soil
BENZO[A]PYRENE EQUIVALENTS (BaPEq) Soil
BETA-HEXACHLOROCYCLOHEXANE Groundwater
BIS(2-CHLOROETHYL)ETHER Surface Water
BIS(2-ETHYLHEXYL)PHTHALATE Surface Water
CADMIUM Sediment
CADMIUM Soil
CESIUM-137 Soil
CESIUM-137 Solid Waste
CHLOROBENZENE Groundwater
CHLOROETHENE (VINYL CHLORIDE) Groundwater
CHLOROETHENE (VINYL CHLORIDE) Surface Water
CHROMIUM Soil
CHROMIUM(VI) Soil
CHRYSENE Soil
CIS-1,2-DICHLOROETHENE Groundwater
COBALT Soil
COBALT-60 Soil
COBALT-60 Solid Waste
COPPER Groundwater
CYANIDE Groundwater
DDT AND METABOLITES Sediment
DDT AND METABOLITES Soil
DIBENZO(A,H)ANTHRACENE Soil
DIBENZOFURAN Soil
DICHLOROMETHANE (METHYLENE CHLORIDE) Groundwater
DIELDRIN Groundwater
DIELDRIN Soil
ENDRIN Groundwater
ETHYLBENZENE Groundwater
ETHYLBENZENE Soil
FLUORANTHENE Soil
GAMMA-CHLORDANE Groundwater
HEPTACHLOR Groundwater
HEPTACHLOR Soil
HEPTACHLOR EPOXIDE Groundwater
HEPTACHLOR EPOXIDE Soil
INDENO(1,2,3-CD)PYRENE Soil
IRON Soil
LEAD Sediment
LEAD Soil
MOLYBDENUM Soil
NAPHTHALENE Groundwater
NAPHTHALENE Soil
NICKEL Groundwater
P,P'-DDE Groundwater
P,P'-DDT Groundwater
PESTICIDES Sediment
PHENANTHRENE Soil
POLYCHLORINATED BIPHENYLS (PCBs) Sediment
POLYCHLORINATED BIPHENYLS (PCBs) Soil
PYRENE Soil
RADIUM-226 Buildings/Structures
RADIUM-226 Sediment
RADIUM-226 Soil
RADIUM-226 Solid Waste
STRONTIUM-90 Soil
STRONTIUM-90 Solid Waste
TETRACHLOROETHENE Groundwater
TETRACHLOROETHENE Soil
THALLIUM Soil
THORIUM-232 Soil
THORIUM-232 Solid Waste
TOLUENE Groundwater
TRANS-1,2-DICHLOROETHENE Groundwater
TRICHLOROETHENE Groundwater
TRICHLOROETHENE Soil
TRICHLOROETHENE Surface Water
URANIUM-238 Soil
URANIUM-238 Solid Waste
VANADIUM Soil
VOC Groundwater
XYLENE (MIXED ISOMERS) Groundwater
ZINC Soil

Location

City
Alameda
Coordinates
37.7889, -122.3300

Other Superfund Sites in California

Site Name Status HRS Score
Advanced Micro Devices, Inc. NPL Site 37.93
Advanced Micro Devices, Inc. (Building 915) NPL Site 31.94
Aerojet General Corp. NPL Site 54.63
Afterthought Mine NPL Site 50.00
Alark Hard Chrome NPL Site 50.50
AMCO Chemical NPL Site 50.00
Applied Materials NPL Site 31.94
Argonaut Mine NPL Site 58.31
Atlas Asbestos Mine NPL Site 45.55
Barstow Marine Corps Logistics Base NPL Site 37.93

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

Of the 116 California Superfund sites with a scored Hazard Ranking System (HRS) evaluation, Alameda Naval Air Station ranks #15 by score (50.00).

Either side of it: Blue Ledge Mine (50.28), Afterthought Mine (50.00), AMCO Chemical (50.00), Concord Naval Weapons Station (50.00)

Frequently Asked Questions

What is the Alameda Naval Air Station Superfund site?
Alameda Naval Air Station is one of the higher hazard-ranked Superfund sites EPA tracks in California (HRS 50.00, rank #15 of 116 scored sites in the state), located in Alameda, CA. Superfund sites are contaminated locations identified by the EPA for long-term cleanup under CERCLA; a higher HRS rank reflects the EPA's scoring model, not a certified danger level.
What does NPL listing mean for Alameda Naval Air Station?
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 Alameda Naval Air Station?
Alameda Naval Air Station's Hazard Ranking System (HRS) score is 50.00, placing it #15 of 116 California Superfund sites with a scored HRS evaluation -- among the higher-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 Alameda Naval Air Station site?
The EPA public Superfund extract catalogs 106 contaminants at Alameda Naval Air Station, 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 Alameda Naval Air Station?
Alameda Naval Air Station 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