A. O. Polymer
NPL SiteSparta Township, NJ
According to the EPA Superfund Enterprise Management System, A. O. Polymer in Sparta Township, NJ is listed with NPL status NPL Site. Its Hazard Ranking System (HRS) score is 28.91. The public extract catalogs 50 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 New Jersey environmental agency.
What is the cleanup status of this Superfund site?
Contaminants
| Contaminant | Media |
|---|---|
| 1,1,1-TRICHLOROETHANE | Groundwater |
| 1,1,1-TRICHLOROETHANE | Surface Water |
| 1,1,2-TRICHLOROETHANE | Groundwater |
| 1,1,2-TRICHLOROETHANE | Surface Water |
| 1,1-DICHLOROETHANE | Groundwater |
| 1,1-DICHLOROETHANE | Surface Water |
| 1,1-DICHLOROETHENE | Groundwater |
| 1,1-DICHLOROETHENE | Surface Water |
| 1,2-DICHLOROBENZENE | Groundwater |
| 1,2-DICHLOROETHENE (CIS AND TRANS MIXTURE) | Groundwater |
| 1,2-DICHLOROETHENE (CIS AND TRANS MIXTURE) | Surface Water |
| 1,2-DICHLOROPROPANE | Groundwater |
| 2-BUTANONE (METHYL ETHYL KETONE) | Groundwater |
| 2-BUTANONE (METHYL ETHYL KETONE) | Surface Water |
| 2-HEXANONE | Groundwater |
| 4-METHYL-2-PENTANONE (METHYL ISOBUTYL KETONE) | Groundwater |
| 4-METHYLPHENOL (P-CRESOL) | Groundwater |
| ACETONE | Groundwater |
| ACETONE | Surface Water |
| ALPHA-HEXACHLOROCYCLOHEXANE | Groundwater |
| BENZENE | Groundwater |
| BENZENE | Surface Water |
| BENZOIC ACID | Groundwater |
| BETA-HEXACHLOROCYCLOHEXANE | Groundwater |
| BIS(2-ETHYLHEXYL)PHTHALATE | Groundwater |
| CARBON DISULFIDE | Groundwater |
| CARBON DISULFIDE | Surface Water |
| CARBON TETRACHLORIDE | Groundwater |
| CARBON TETRACHLORIDE | Surface Water |
| CHLOROBENZENE | Groundwater |
| CHLOROBENZENE | Surface Water |
| CHLOROETHENE (VINYL CHLORIDE) | Surface Water |
| CHLOROFORM | Groundwater |
| CHLOROFORM | Surface Water |
| DIBUTYL PHTHALATE | Groundwater |
| DICHLOROMETHANE (METHYLENE CHLORIDE) | Groundwater |
| DICHLOROMETHANE (METHYLENE CHLORIDE) | Surface Water |
| ETHYLBENZENE | Groundwater |
| ETHYLBENZENE | Surface Water |
| PHENOL | Groundwater |
| POLYCYCLIC AROMATIC HYDROCARBONS (PAHS) | Groundwater |
| TETRACHLOROETHENE | Groundwater |
| TETRACHLOROETHENE | Surface Water |
| TOLUENE | Groundwater |
| TOLUENE | Surface Water |
| TRICHLOROETHENE | Groundwater |
| TRICHLOROETHENE | Surface Water |
| TRICHLOROFLUOROMETHANE | Groundwater |
| XYLENE (MIXED ISOMERS) | Groundwater |
| XYLENE (MIXED ISOMERS) | Surface Water |
Location
Other Superfund Sites in New Jersey
| Site Name | Status | HRS Score |
|---|---|---|
| American Cyanamid Co. | NPL Site | 50.28 |
| Asbestos Dump | Deleted NPL Site | 39.61 |
| Atlantic Resources Corporation | NPL Site | 50.00 |
| Beachwood/Berkley Wells | Deleted NPL Site | 42.24 |
| Bog Creek Farm | NPL Site | 43.23 |
| Brick Township Landfill | NPL Site | 58.13 |
| Bridgeport Rental & Oil Services | NPL Site | 60.73 |
| Brook Industrial Park | NPL Site | 58.12 |
| Burnt Fly Bog | NPL Site | 59.16 |
| Caldwell Trucking Co. | NPL Site | 58.30 |
How does this site's HRS score compare in New Jersey?
Of the 153 New Jersey Superfund sites with a scored Hazard Ranking System (HRS) evaluation, A. O. Polymer ranks #143 by score (28.91).
Either side of it: Diamond Head Oil Refinery Div. (30.00), Naval Weapons Station Earle (Site A) (29.65), Dover Municipal Well 4 (28.90), Garden State Cleaners Co. (28.90)
Frequently Asked Questions
What is the A. O. Polymer Superfund site? ▼
What does NPL listing mean for A. O. Polymer? ▼
What is the HRS score for A. O. Polymer? ▼
What contaminants are at the A. O. Polymer site? ▼
What is the cleanup status of A. O. Polymer? ▼
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.