Iron Horse Park
NPL SiteBillerica, MA
According to the EPA Superfund Enterprise Management System, Iron Horse Park in Billerica, MA is listed with NPL status NPL Site. Its Hazard Ranking System (HRS) score is 42.93. The public extract catalogs 150 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.
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?
Contaminants
| Contaminant | Media |
|---|---|
| (Z)-1,3-DICHLORO-1-PROPENE | Groundwater |
| 1,1,1-TRICHLOROETHANE | Sludge |
| 1,1,1-TRICHLOROETHANE | Soil |
| 1,1,2,2-TETRACHLOROETHANE | Groundwater |
| 1,1,2-TRICHLOROETHANE | Groundwater |
| 1,1,2-TRICHLOROETHANE | Soil |
| 1,1-DICHLOROETHANE | Sludge |
| 1,1-DICHLOROETHENE | Groundwater |
| 1,2-DICHLOROBENZENE | Soil |
| 1,2-DICHLOROETHANE | Groundwater |
| 1,2-DICHLOROETHENE (CIS AND TRANS MIXTURE) | Groundwater |
| 1,2-DIHYDROACENAPHTHYLENE | Soil |
| 1,4-DICHLOROBENZENE | Groundwater |
| 2-BUTANONE (METHYL ETHYL KETONE) | Sediment |
| 2-BUTANONE (METHYL ETHYL KETONE) | Soil |
| 2-METHYLNAPHTHALENE | Sludge |
| 2-METHYLNAPHTHALENE | Soil |
| 4-(4-AMINO-3-CHLOROPHENYL)-2-CHLOROANILINE | Sediment |
| 9H-CARBAZOLE | Soil |
| 9H-FLUORENE | Soil |
| ACENAPHTHYLENE | Soil |
| ACETONE | Sediment |
| ACETONE | Soil |
| ALDRIN | Groundwater |
| ALDRIN | Soil |
| ANTHRACENE | Soil |
| ANTIMONY | Sludge |
| ANTIMONY | Soil |
| ARSENIC | Groundwater |
| ARSENIC | Sediment |
| ARSENIC | Sludge |
| ARSENIC | Soil |
| ATRAZINE | Groundwater |
| BARIUM | Groundwater |
| BARIUM | Sludge |
| BARIUM | Soil |
| BENZENE | Groundwater |
| BENZENE | Sediment |
| BENZENE | Sludge |
| BENZO(B)FLUORANTHENE | Sludge |
| BENZO(B)FLUORANTHENE | Soil |
| BENZO(GHI)PERYLENE | Soil |
| BENZO(K)FLUORANTHENE | Sludge |
| BENZO(K)FLUORANTHENE | Soil |
| BENZO[A]ANTHRACENE | Soil |
| BENZO[A]PYRENE | Sludge |
| BENZO[A]PYRENE | Soil |
| BENZOIC ACID | Sediment |
| BENZOIC ACID | Soil |
| BERYLLIUM | Groundwater |
| BERYLLIUM | Sludge |
| BERYLLIUM | Soil |
| BIS(2-CHLOROETHYL)ETHER | Groundwater |
| BIS(2-CHLOROETHYL)ETHER | Soil |
| BIS(2-ETHYLHEXYL)PHTHALATE | Groundwater |
| BIS(2-ETHYLHEXYL)PHTHALATE | Sediment |
| BIS(2-ETHYLHEXYL)PHTHALATE | Sludge |
| BIS(2-ETHYLHEXYL)PHTHALATE | Soil |
| BROMODICHLOROMETHANE | Sludge |
| BUTYL BENZYL PHTHALATE | Sediment |
| BUTYL BENZYL PHTHALATE | Soil |
| CADMIUM | Groundwater |
| CADMIUM | Sludge |
| CADMIUM | Soil |
| CARBON TETRACHLORIDE | Groundwater |
| CHLOROBENZENE | Sludge |
| CHLOROETHENE (VINYL CHLORIDE) | Groundwater |
| CHLOROFORM | Sludge |
| CHLOROFORM | Soil |
| CHLOROMETHANE | Sludge |
| CHROMIUM | Sediment |
| CHROMIUM | Sludge |
| CHROMIUM | Soil |
| CHRYSENE | Soil |
| COPPER | Sediment |
| COPPER | Sludge |
| COPPER | Soil |
| CYANIDE | Sludge |
| CYANIDE | Soil |
| DI-N-OCTYL PHTHALATE | Sediment |
| DIBENZO(A,H)ANTHRACENE | Groundwater |
| DIBENZO(A,H)ANTHRACENE | Soil |
| DIBENZOFURAN | Soil |
| DIBUTYL PHTHALATE | Sediment |
| DIBUTYL PHTHALATE | Soil |
| DICHLOROMETHANE (METHYLENE CHLORIDE) | Groundwater |
| DICHLOROMETHANE (METHYLENE CHLORIDE) | Soil |
| DIELDRIN | Groundwater |
| DIETHYL PHTHALATE | Sediment |
| ENDRIN | Soil |
| ENDRIN ALDEHYDE | Soil |
| ENDRIN KETONE | Soil |
| ETHYLBENZENE | Groundwater |
| ETHYLBENZENE | Sludge |
| ETHYLBENZENE | Soil |
| FLUORANTHENE | Sludge |
| FLUORANTHENE | Soil |
| INDENO(1,2,3-CD)PYRENE | Soil |
| IRON | Soil |
| LEAD | Sediment |
| LEAD | Sludge |
| LEAD | Soil |
| MANGANESE | Groundwater |
| MERCURY | Sludge |
| MERCURY | Soil |
| METHOXYCHLOR | Soil |
| N,N-DIPHENYLNITROUS AMIDE | Sludge |
| N,N-DIPHENYLNITROUS AMIDE | Soil |
| NAPHTHALENE | Soil |
| NICKEL | Sludge |
| NICKEL | Soil |
| P,P'-DDD | Sediment |
| P,P'-DDE | Sediment |
| P,P'-DDT | Soil |
| PENTACHLOROPHENOL | Groundwater |
| PENTACHLOROPHENOL | Soil |
| PHENANTHRENE | Sludge |
| PHENANTHRENE | Soil |
| POLYCHLORINATED BIPHENYLS (PCBs) | Groundwater |
| POLYCHLORINATED BIPHENYLS (PCBs) | Sediment |
| POLYCYCLIC AROMATIC HYDROCARBONS (PAHS) | Sediment |
| POLYCYCLIC AROMATIC HYDROCARBONS (PAHS) | Soil |
| PYRENE | Sludge |
| PYRENE | Soil |
| SELENIUM | Sludge |
| SELENIUM | Soil |
| SILVER | Sludge |
| SILVER | Soil |
| TETRACHLOROETHENE | Groundwater |
| TETRACHLOROETHENE | Sludge |
| TETRACHLOROETHENE | Soil |
| THALLIUM | Groundwater |
| TOLUENE | Groundwater |
| TOLUENE | Sludge |
| TOLUENE | Soil |
| TOTAL PETROLEUM HYDROCARBONS (TPH) | Soil |
| TRANS-1,2-DICHLOROETHENE | Sludge |
| TRICHLOROETHENE | Groundwater |
| TRICHLOROETHENE | Sludge |
| TRICHLOROETHENE | Soil |
| VANADIUM | Sediment |
| VANADIUM | Sludge |
| VANADIUM | Soil |
| XYLENE (MIXED ISOMERS) | Groundwater |
| XYLENE (MIXED ISOMERS) | Sediment |
| XYLENE (MIXED ISOMERS) | Sludge |
| XYLENE (MIXED ISOMERS) | Soil |
| ZINC | Sediment |
| ZINC | Sludge |
| ZINC | Soil |
Location
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, Iron Horse Park ranks #25 by score (42.93).
Either side of it: Otis Air National Guard Base/Camp Edwards (45.92), Hocomonco Pond (44.80), Silresim Chemical Corp. (42.72), Wells G&H (42.71)
Frequently Asked Questions
What is the Iron Horse Park Superfund site? ▼
What does NPL listing mean for Iron Horse Park? ▼
What is the HRS score for Iron Horse Park? ▼
What contaminants are at the Iron Horse Park site? ▼
What is the cleanup status of Iron Horse Park? ▼
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.
Read our methodology - how this data is sourced, computed, and verified.