Gallup's Quarry
NPL SitePlainfield, CT
According to the EPA Superfund Enterprise Management System, Gallup's Quarry in Plainfield, CT is listed with NPL status NPL Site. Its Hazard Ranking System (HRS) score is 46.29. The public extract catalogs 77 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 Connecticut environmental agency.
What is the cleanup status of this Superfund site?
Contaminants
| Contaminant | Media |
|---|---|
| 1,1,2,2-TETRACHLOROETHANE | Soil |
| 1,1-DICHLOROETHENE | Groundwater |
| 1,2-DICHLOROETHANE | Groundwater |
| 1,2-DICHLOROETHENE (CIS AND TRANS MIXTURE) | Groundwater |
| 1,2-DICHLOROPROPANE | Groundwater |
| 1,2-DIHYDROACENAPHTHYLENE | Sediment |
| 1,4-DICHLOROBENZENE | Groundwater |
| 1-METHYLNAPHTHALENE | Sediment |
| 2-METHYLNAPHTHALENE | Soil |
| 9H-FLUORENE | Sediment |
| ACENAPHTHYLENE | Sediment |
| ALPHA-CHLORDANE | Sediment |
| ALUMINUM | Sediment |
| ANTIMONY | Sediment |
| AROCLOR 1242 | Groundwater |
| AROCLOR 1242 | Soil |
| AROCLOR 1248 | Soil |
| AROCLOR 1254 | Sediment |
| AROCLOR 1254 | Soil |
| AROCLOR 1260 | Sediment |
| AROCLOR 1260 | Soil |
| ARSENIC | Groundwater |
| ARSENIC | Sediment |
| ARSENIC | Soil |
| BENZENE | Groundwater |
| BENZO(B)FLUORANTHENE | Sediment |
| BENZO(GHI)PERYLENE | Sediment |
| BENZO(GHI)PERYLENE | Soil |
| BENZO(K)FLUORANTHENE | Sediment |
| BENZO[A]ANTHRACENE | Sediment |
| BENZO[A]PYRENE | Sediment |
| BERYLLIUM | Groundwater |
| BERYLLIUM | Sediment |
| BERYLLIUM | Soil |
| BIS(2-ETHYLHEXYL)PHTHALATE | Groundwater |
| CARBON TETRACHLORIDE | Groundwater |
| CHLOROETHENE (VINYL CHLORIDE) | Groundwater |
| CHLOROFORM | Groundwater |
| CHLOROMETHANE | Soil |
| CHROMIUM | Groundwater |
| CHRYSENE | Sediment |
| CYANIDE | Soil |
| DI-N-OCTYL PHTHALATE | Groundwater |
| DIBUTYL PHTHALATE | Groundwater |
| DIBUTYL PHTHALATE | Soil |
| DICHLOROMETHANE (METHYLENE CHLORIDE) | Groundwater |
| DIELDRIN | Soil |
| ENDOSULFAN SULFATE | Sediment |
| ENDRIN KETONE | Sediment |
| ETHYLBENZENE | Soil |
| FLUORANTHENE | Sediment |
| INDENO(1,2,3-CD)PYRENE | Sediment |
| IRON | Groundwater |
| IRON | Sediment |
| IRON | Soil |
| LEAD | Groundwater |
| LEAD | Sediment |
| LEAD | Soil |
| MANGANESE | Groundwater |
| MANGANESE | Sediment |
| NAPHTHALENE | Sediment |
| P,P'-DDD | Sediment |
| P,P'-DDE | Sediment |
| P,P'-DDT | Sediment |
| PHENANTHRENE | Groundwater |
| PHENANTHRENE | Sediment |
| PHENANTHRENE | Soil |
| POLYCHLORINATED BIPHENYLS (PCBs) | Soil |
| SILVER | Groundwater |
| TETRACHLOROETHENE | Groundwater |
| THALLIUM | Soil |
| TRICHLOROETHENE | Groundwater |
| TRICHLOROETHENE | Soil |
| VANADIUM | Groundwater |
| XYLENE (MIXED ISOMERS) | Groundwater |
| XYLENE (MIXED ISOMERS) | Soil |
| ZINC | Groundwater |
Location
Other Superfund Sites in Connecticut
| Site Name | Status | HRS Score |
|---|---|---|
| Barkhamsted-New Hartford Landfill | NPL Site | 38.05 |
| Beacon Heights Landfill | NPL Site | 46.77 |
| Cheshire Ground Water Contamination | Deleted NPL Site | 35.57 |
| Durham Meadows | NPL Site | 33.94 |
| Kellogg-Deering Well Field | NPL Site | 39.92 |
| Laurel Park, Inc. | NPL Site | 0.00 |
| Linemaster Switch Corp. | NPL Site | 33.71 |
| New London Submarine Base | NPL Site | 36.53 |
| Nutmeg Valley Road | Deleted NPL Site | 42.69 |
| Old Southington Landfill | Deleted NPL Site | 54.35 |
How does this site's HRS score compare in Connecticut?
Of the 17 Connecticut Superfund sites with a scored Hazard Ranking System (HRS) evaluation, Gallup's Quarry ranks #5 by score (46.29).
Either side of it: Precision Plating Corp. (49.10), Beacon Heights Landfill (46.77), Solvents Recovery Service of New England (44.93), Nutmeg Valley Road (42.69)
Frequently Asked Questions
What is the Gallup's Quarry Superfund site? ▼
What does NPL listing mean for Gallup's Quarry? ▼
What is the HRS score for Gallup's Quarry? ▼
What contaminants are at the Gallup's Quarry site? ▼
What is the cleanup status of Gallup's Quarry? ▼
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.