Hatheway and Patterson Company

Deleted NPL Site
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Mansfield, MA

According to the EPA Superfund Enterprise Management System, Hatheway and Patterson Company in Mansfield, MA is listed with NPL status Deleted NPL Site. Its Hazard Ranking System (HRS) score is 56.60. The public extract catalogs 100 contaminant records for this site. EPA marks construction of the cleanup remedy as complete. The site has been deleted from the NPL in the EPA record. 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 Massachusetts environmental agency.

What is the cleanup status of this Superfund site?

NPL Status
Deleted NPL Site
Federal Facility
No
Construction Complete
Yes
HRS Score
56.60
Deleted from NPL
Yes

Contaminants

Contaminant Media
1,1-DICHLOROETHANE Sediment
1,2-DIHYDROACENAPHTHYLENE Sediment
1-PHENYLETHANONE Sediment
2,4,5-TRICHLOROPHENOL Sediment
2,4,6-TRICHLOROPHENOL Groundwater
2,6-DINITROTOLUENE Surface Water
2-METHYL-4,6-DINITROPHENOL (4,6-DINITRO-O-CRESOL) Surface Water
2-METHYLNAPHTHALENE Groundwater
2-METHYLNAPHTHALENE Sediment
2-METHYLPHENOL (O-CRESOL) Sediment
3,5,5-TRIMETHYLCYCLOHEX-2-EN-1-ONE Surface Water
4-METHYLPHENOL (P-CRESOL) Sediment
9H-CARBAZOLE Sediment
9H-CARBAZOLE Surface Water
9H-FLUORENE Sediment
ACENAPHTHYLENE Sediment
ACETONE Sediment
ALDRIN Sediment
ALUMINUM Sediment
ALUMINUM Surface Water
ANTHRACENE Sediment
ANTIMONY Sediment
ARSENIC Groundwater
ARSENIC Sediment
ARSENIC Soil
ATRAZINE Surface Water
BARIUM Sediment
BARIUM Surface Water
BENZO(B)FLUORANTHENE Groundwater
BENZO(B)FLUORANTHENE Sediment
BENZO(B)FLUORANTHENE Surface Water
BENZO(GHI)PERYLENE Sediment
BENZO(GHI)PERYLENE Surface Water
BENZO(K)FLUORANTHENE Sediment
BENZO(K)FLUORANTHENE Surface Water
BENZO[A]ANTHRACENE Groundwater
BENZO[A]ANTHRACENE Sediment
BENZO[A]ANTHRACENE Surface Water
BENZO[A]PYRENE Groundwater
BENZO[A]PYRENE Sediment
BENZO[A]PYRENE Soil
BENZO[A]PYRENE Surface Water
BERYLLIUM Sediment
BIS(2-ETHYLHEXYL)PHTHALATE Surface Water
CADMIUM Sediment
CADMIUM Surface Water
CARBON DISULFIDE Sediment
CHLOROETHENE (VINYL CHLORIDE) Groundwater
CHROMIUM Groundwater
CHROMIUM Sediment
CHROMIUM Soil
CHRYSENE Sediment
CHRYSENE Surface Water
COBALT Sediment
COPPER Sediment
CUMENE Sediment
CYCLOHEXANE Sediment
DIBENZO(A,H)ANTHRACENE Groundwater
DIBENZO(A,H)ANTHRACENE Sediment
DIBENZO(A,H)ANTHRACENE Surface Water
DIBENZOFURAN Groundwater
DIETHYL PHTHALATE Sediment
DIMETHYL PHTHALATE Sediment
DIOXINS (CHLORINATED DIBENZODIOXINS) Groundwater
DIOXINS (CHLORINATED DIBENZODIOXINS) Soil
ENDRIN Sediment
FLUORANTHENE Sediment
GAMMA-CHLORDANE Sediment
INDENO(1,2,3-CD)PYRENE Sediment
INDENO(1,2,3-CD)PYRENE Surface Water
IRON Sediment
IRON Surface Water
LEAD Sediment
LEAD Surface Water
MANGANESE Groundwater
MANGANESE Sediment
MANGANESE Surface Water
MERCURY Sediment
METHYL ACETATE Sediment
N,N-DIPROPYLNITROUS AMIDE Sediment
NAPHTHALENE Sediment
NICKEL Sediment
P,P'-DDD Sediment
P,P'-DDE Sediment
PENTACHLOROPHENOL Groundwater
PENTACHLOROPHENOL Sediment
PENTACHLOROPHENOL Soil
PENTACHLOROPHENOL Surface Water
PHENANTHRENE Sediment
PYRENE Sediment
PYRENE Surface Water
SELENIUM Sediment
SILVER Sediment
STYRENE Sediment
THALLIUM Groundwater
THALLIUM Sediment
TRICHLOROETHENE Groundwater
VANADIUM, METAL AND/OR ALLOY Sediment
XYLENE (MIXED ISOMERS) Sediment
ZINC Sediment

Location

City
Mansfield
Coordinates
42.0382, -71.2225

Other Superfund Sites in Massachusetts

Site Name Status HRS Score
Atlas Tack Corp. NPL Site 42.60
Baird & McGuire NPL Site 66.35
BJAT LLC NPL Site 41.91
Blackburn and Union Privileges NPL Site 50.00
Cannon Engineering Corp. (CEC) Deleted NPL Site 39.89
Charles-George Reclamation Trust Landfill NPL Site 47.20
Creese & Cook Tannery (Former) NPL Site 60.57
Fort Devens NPL Site 42.24
Fort Devens-Sudbury Training Annex Deleted NPL Site 35.57
GE - Housatonic River Proposed NPL Site 70.71

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

Of the 41 Massachusetts Superfund sites with a scored Hazard Ranking System (HRS) evaluation, Hatheway and Patterson Company ranks #10 by score (56.60).

Either side of it: Walton & Lonsbury Inc. (58.30), Sutton Brook Disposal Area (57.12), Plymouth Harbor/Cannon Engineering Corp. (54.82), Blackburn and Union Privileges (50.00)

Frequently Asked Questions

What is the Hatheway and Patterson Company Superfund site?
Hatheway and Patterson Company is one of the higher hazard-ranked Superfund sites EPA tracks in Massachusetts (HRS 56.60, rank #10 of 41 scored sites in the state), located in Mansfield, MA. 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 Hatheway and Patterson Company?
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 Hatheway and Patterson Company?
Hatheway and Patterson Company's Hazard Ranking System (HRS) score is 56.60, placing it #10 of 41 Massachusetts 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 Hatheway and Patterson Company site?
The EPA public Superfund extract catalogs 100 contaminants at Hatheway and Patterson Company, 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 Hatheway and Patterson Company?
Hatheway and Patterson Company is currently Deleted NPL Site on the National Priorities List. Construction of the cleanup remedy has been completed. The site has been deleted from the NPL, indicating EPA has determined all response actions are complete. 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