Nyanza Chemical Waste Dump
NPL SiteAshland, MA
According to the EPA Superfund Enterprise Management System, Nyanza Chemical Waste Dump in Ashland, MA is listed with NPL status NPL Site. Its Hazard Ranking System (HRS) score is 69.22. The public extract catalogs 159 contaminant records for this site. 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 |
|---|---|
| 1,1,1-TRICHLOROETHANE | Groundwater |
| 1,1-DICHLOROETHENE | Surface Water |
| 1,2,4-TRICHLOROBENZENE | Groundwater |
| 1,2,4-TRICHLOROBENZENE | Sediment |
| 1,2,4-TRICHLOROBENZENE | Soil Gas |
| 1,2-DICHLOROBENZENE | Groundwater |
| 1,2-DICHLOROBENZENE | Sediment |
| 1,2-DICHLOROBENZENE | Soil Gas |
| 1,2-DICHLOROBENZENE | Surface Water |
| 1,2-DICHLOROETHENE (CIS AND TRANS MIXTURE) | Groundwater |
| 1,2-DICHLOROETHENE (CIS AND TRANS MIXTURE) | Sediment |
| 1,2-DICHLOROETHENE (CIS AND TRANS MIXTURE) | Surface Water |
| 1,3-DICHLOROBENZENE | Groundwater |
| 1,3-DICHLOROBENZENE | Sediment |
| 1,4-DICHLOROBENZENE | Groundwater |
| 1,4-DICHLOROBENZENE | Sediment |
| 1,4-DICHLOROBENZENE | Soil Gas |
| 1,4-DICHLOROBENZENE | Surface Water |
| 2-BUTANONE (METHYL ETHYL KETONE) | Groundwater |
| 2-BUTANONE (METHYL ETHYL KETONE) | Sediment |
| 2-CHLOROPHENOL | Groundwater |
| 2-METHYLNAPHTHALENE | Sediment |
| 4-(4-AMINO-3-METHYLPHENYL)-2-METHYLANILINE | Groundwater |
| 4-CHLOROANILINE | Groundwater |
| 4-METHYLPHENOL (P-CRESOL) | Fish Tissue |
| ACENAPHTHYLENE | Sediment |
| ACETONE | Fish Tissue |
| ALDRIN | Fish Tissue |
| ALUMINUM | Sediment |
| ALUMINUM | Surface Water |
| ANILINE | Groundwater |
| ANTHRACENE | Sediment |
| ANTIMONY | Fish Tissue |
| ANTIMONY | Groundwater |
| ANTIMONY | Sediment |
| AROCLOR 1254 | Fish Tissue |
| AROCLOR 1254 | Sediment |
| AROCLOR 1260 | Fish Tissue |
| ARSENIC | Fish Tissue |
| ARSENIC | Groundwater |
| ARSENIC | Sediment |
| ARSENIC | Sludge |
| ARSENIC | Soil |
| ARSENIC | Surface Water |
| BARIUM | Sediment |
| BARIUM | Surface Water |
| BENZENE | Groundwater |
| BENZENE | Sediment |
| BENZENE | Soil Gas |
| BENZIDINE | Groundwater |
| BENZO(B)FLUORANTHENE | Sediment |
| BENZO(GHI)PERYLENE | Sediment |
| BENZO(K)FLUORANTHENE | Sediment |
| BENZO[A]ANTHRACENE | Sediment |
| BENZO[A]PYRENE | Sediment |
| BERYLLIUM | Groundwater |
| BERYLLIUM | Sediment |
| BERYLLIUM | Surface Water |
| BIS(2-ETHYLHEXYL)PHTHALATE | Fish Tissue |
| BIS(2-ETHYLHEXYL)PHTHALATE | Sediment |
| BIS(2-ETHYLHEXYL)PHTHALATE | Surface Water |
| CADMIUM | Fish Tissue |
| CADMIUM | Groundwater |
| CADMIUM | Sediment |
| CADMIUM | Sludge |
| CADMIUM | Soil |
| CADMIUM | Surface Water |
| CHLORDANE | Fish Tissue |
| CHLOROBENZENE | Groundwater |
| CHLOROBENZENE | Sediment |
| CHLOROBENZENE | Soil Gas |
| CHLOROBENZENE | Surface Water |
| CHLOROETHENE (VINYL CHLORIDE) | Groundwater |
| CHLOROETHENE (VINYL CHLORIDE) | Sediment |
| CHLOROETHENE (VINYL CHLORIDE) | Soil Gas |
| CHLOROFORM | Groundwater |
| CHROMIUM | Fish Tissue |
| CHROMIUM | Groundwater |
| CHROMIUM | Sediment |
| CHROMIUM | Sludge |
| CHROMIUM | Soil |
| CHROMIUM | Surface Water |
| CHROMIUM (III) | Sediment |
| CHRYSENE | Sediment |
| COPPER | Fish Tissue |
| COPPER | Groundwater |
| COPPER | Sediment |
| COPPER | Surface Water |
| DIBENZO(A,H)ANTHRACENE | Sediment |
| DIBUTYL PHTHALATE | Sediment |
| DICHLOROMETHANE (METHYLENE CHLORIDE) | Fish Tissue |
| DICHLOROMETHANE (METHYLENE CHLORIDE) | Groundwater |
| DIELDRIN | Fish Tissue |
| DIELDRIN | Groundwater |
| DIMETHYLMERCURY | Sediment |
| ENDOSULFAN (I OR II) | Fish Tissue |
| FLUORANTHENE | Sediment |
| HEPTACHLOR | Fish Tissue |
| HEPTACHLOR | Groundwater |
| INDENO(1,2,3-CD)PYRENE | Sediment |
| LEAD | Fish Tissue |
| LEAD | Groundwater |
| LEAD | Sediment |
| LEAD | Sludge |
| LEAD | Soil |
| LEAD | Surface Water |
| MANGANESE | Fish Tissue |
| MANGANESE | Groundwater |
| MANGANESE | Sediment |
| MANGANESE | Surface Water |
| MERCURY | Fish Tissue |
| MERCURY | Groundwater |
| MERCURY | Sediment |
| MERCURY | Sludge |
| MERCURY | Soil |
| MERCURY | Surface Water |
| METHYL MERCURY | Fish Tissue |
| METHYL MERCURY | Sediment |
| N,N-DIPHENYLNITROUS AMIDE | Groundwater |
| NAPHTHALENE | Groundwater |
| NAPHTHALENE | Sediment |
| NICKEL | Fish Tissue |
| NICKEL | Groundwater |
| NICKEL | Sediment |
| NICKEL | Surface Water |
| NITROBENZENE | Fish Tissue |
| NITROBENZENE | Groundwater |
| NITROBENZENE | Sediment |
| NITROBENZENE | Soil Gas |
| P,P'-DDD | Fish Tissue |
| P,P'-DDD | Sediment |
| P,P'-DDE | Fish Tissue |
| P,P'-DDE | Sediment |
| P,P'-DDT | Fish Tissue |
| P,P'-DDT | Sediment |
| PENTACHLOROPHENOL | Groundwater |
| PHENANTHRENE | Sediment |
| PHENOL | Fish Tissue |
| POLYCHLORINATED BIPHENYLS (PCBs) | Fish Tissue |
| PYRENE | Sediment |
| SELENIUM | Fish Tissue |
| SELENIUM | Sediment |
| SILVER | Fish Tissue |
| SILVER | Surface Water |
| TETRACHLOROETHENE | Groundwater |
| THALLIUM | Fish Tissue |
| THALLIUM | Sediment |
| TOLUENE | Groundwater |
| TRICHLOROETHANE (MIXED ISOMERS) | Groundwater |
| TRICHLOROETHENE | Groundwater |
| TRICHLOROETHENE | Sediment |
| TRICHLOROETHENE | Soil Gas |
| TRICHLOROETHENE | Surface Water |
| VANADIUM | Fish Tissue |
| VANADIUM | Sediment |
| VANADIUM | Surface Water |
| ZINC | Fish Tissue |
| ZINC | Sediment |
| ZINC | Surface Water |
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, Nyanza Chemical Waste Dump ranks #3 by score (69.22).
Either side of it: Industri-Plex (72.42), GE - Housatonic River (70.71), Baird & McGuire (66.35), Creese & Cook Tannery (Former) (60.57)
Frequently Asked Questions
What is the Nyanza Chemical Waste Dump Superfund site? ▼
What does NPL listing mean for Nyanza Chemical Waste Dump? ▼
What is the HRS score for Nyanza Chemical Waste Dump? ▼
What contaminants are at the Nyanza Chemical Waste Dump site? ▼
What is the cleanup status of Nyanza Chemical Waste Dump? ▼
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.