Sharpe Army Depot

NPL Site
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Lathrop, CA

According to the EPA Superfund Enterprise Management System, Sharpe Army Depot in Lathrop, CA is listed with NPL status NPL Site. Its Hazard Ranking System (HRS) score is 42.24. The public extract catalogs 73 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 California environmental agency.

What is the cleanup status of this Superfund site?

NPL Status
NPL Site
Federal Facility
No
Construction Complete
Yes
HRS Score
42.24
Deleted from NPL
No

Contaminants

Contaminant Media
1,1,1,2-TETRACHLOROETHANE Groundwater
1,1,1,2-TETRACHLOROETHANE Soil
1,1,1-TRICHLOROETHANE Soil
1,1,2,2-TETRACHLOROETHANE Groundwater
1,1,2-TRICHLOROETHANE Groundwater
1,1-DICHLOROETHANE Groundwater
1,1-DICHLOROETHANE Soil
1,1-DICHLOROETHENE Groundwater
1,1-DICHLOROETHENE Soil
1,2-DICHLOROPROPANE Groundwater
1,3-DICHLOROBENZENE Soil
1,3-DICHLOROPROPENE (EZ MIXTURE) Groundwater
3-(4-CHLOROPHENYL)-1,1-DIMETHYLUREA Soil
ALUMINUM Soil
ANTHRACENE Soil
ANTIMONY Soil
ARSENIC Soil
BARIUM Soil
BENZENE Groundwater
BENZENE Soil
BENZO(K)FLUORANTHENE Soil
BERYLLIUM Soil
BETA-HEXACHLOROCYCLOHEXANE Soil
BIS(2-ETHYLHEXYL)PHTHALATE Soil
BROMACIL Soil
BROMODICHLOROMETHANE Groundwater
BROMOFORM Groundwater
CADMIUM Soil
CALCIUM Soil
CARBON TETRACHLORIDE Groundwater
CHLORDANE Soil
CHLOROBENZENE Soil
CHLOROETHENE (VINYL CHLORIDE) Groundwater
CHLOROETHENE (VINYL CHLORIDE) Soil
CHLOROFORM Groundwater
CHLOROFORM Soil
CHROMIUM Soil
CHRYSENE Soil
COPPER Soil
DI-N-OCTYL PHTHALATE Soil
DIBROMOCHLOROMETHANE Groundwater
DICHLOROBENZENE (MIXED ISOMERS) Groundwater
DICHLOROBENZENE (MIXED ISOMERS) Soil
DICHLORODIFLUOROMETHANE Soil
DICHLOROMETHANE (METHYLENE CHLORIDE) Groundwater
DIELDRIN Soil
ETHYLBENZENE Soil
FLUORANTHENE Soil
GAMMA-HEXACHLOROCYCLOHEXANE (LINDANE) Soil
IRON Soil
LEAD Soil
MAGNESIUM Soil
MANGANESE Soil
MOLYBDENUM Soil
NICKEL Soil
P,P'-DDD Soil
P,P'-DDE Soil
P,P'-DDT Soil
PHENANTHRENE Soil
POTASSIUM Soil
PYRENE Soil
SILVER Soil
SODIUM Soil
TETRACHLOROETHENE Soil
THALLIUM Soil
TOLUENE Soil
TRANS-1,2-DICHLOROETHENE Soil
TRICHLOROETHENE Groundwater
TRICHLOROETHENE Soil
TRICHLOROETHENE Soil Gas
VANADIUM Soil
XYLENE (MIXED ISOMERS) Soil
ZINC Soil

Location

City
Lathrop
Coordinates
37.8292, -121.2672

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
Alameda Naval Air Station 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

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

Of the 116 California Superfund sites with a scored Hazard Ranking System (HRS) evaluation, Sharpe Army Depot ranks #52 by score (42.24).

Either side of it: San Gabriel Valley (Area 1) (42.24), San Gabriel Valley (Area 2) (42.24), T.H. Agriculture & Nutrition Co. (42.24), McColl (41.77)

Frequently Asked Questions

What is the Sharpe Army Depot Superfund site?
Sharpe Army Depot is an active National Priorities List (NPL) Superfund site located in Lathrop, CA. It has a Hazard Ranking System (HRS) score of 42.24 (rank #52 of 116 scored California sites). Superfund sites are contaminated locations identified by the EPA for long-term cleanup under CERCLA.
What does NPL listing mean for Sharpe Army Depot?
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 Sharpe Army Depot?
Sharpe Army Depot's Hazard Ranking System (HRS) score is 42.24, placing it #52 of 116 California 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 Sharpe Army Depot site?
The EPA public Superfund extract catalogs 73 contaminants at Sharpe Army Depot, 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 Sharpe Army Depot?
Sharpe Army Depot 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