Koppers Coke
NPL SiteSt. Paul, MN
According to the EPA Superfund Enterprise Management System, Koppers Coke in St. Paul, MN is listed with NPL status NPL Site. Its Hazard Ranking System (HRS) score is 55.05. The public extract catalogs 33 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 Minnesota environmental agency.
What is the cleanup status of this Superfund site?
Contaminants
| Contaminant | Media |
|---|---|
| 1,1,1-TRICHLOROETHANE | Groundwater |
| 1,2-DICHLOROBENZENE | Groundwater |
| 1,2-DIHYDROACENAPHTHYLENE | Groundwater |
| 2,4-DIMETHYLPHENOL | Groundwater |
| 2-BUTANONE (METHYL ETHYL KETONE) | Groundwater |
| 9H-FLUORENE | Groundwater |
| ACETONE | Groundwater |
| ANTHRACENE | Groundwater |
| ANTIMONY | Groundwater |
| BIS(2-ETHYLHEXYL)PHTHALATE | Groundwater |
| CADMIUM | Groundwater |
| CHLOROBENZENE | Groundwater |
| CHROMIUM(VI) | Groundwater |
| CHRYSENE | Groundwater |
| COPPER | Groundwater |
| CYANIDE | Groundwater |
| DIMETHYL PHTHALATE | Groundwater |
| ETHYLBENZENE | Groundwater |
| FLUORANTHENE | Groundwater |
| HEXACHLOROETHANE | Groundwater |
| LEAD | Groundwater |
| MERCURY | Groundwater |
| N,N-DIPHENYLNITROUS AMIDE | Groundwater |
| NAPHTHALENE | Groundwater |
| NICKEL | Groundwater |
| PHENOL | Groundwater |
| POLYCYCLIC AROMATIC HYDROCARBONS (PAHS) | Groundwater |
| PYRENE | Groundwater |
| SELENIUM | Groundwater |
| SILVER | Groundwater |
| THALLIUM | Groundwater |
| TOLUENE | Groundwater |
| XYLENE (MIXED ISOMERS) | Groundwater |
Location
Other Superfund Sites in Minnesota
| Site Name | Status | HRS Score |
|---|---|---|
| Adrian Municipal Well Field | Deleted NPL Site | 33.62 |
| Agate Lake Scrapyard | Deleted NPL Site | 29.68 |
| Arrowhead Refinery Co. | Deleted NPL Site | 43.75 |
| Baytown Township Ground Water Plume | NPL Site | 35.62 |
| Boise Cascade/Onan Corp./Medtronics, Inc. | Deleted NPL Site | 50.06 |
| Burlington Northern (Brainerd/Baxter Plant) | NPL Site | 46.77 |
| Dakhue Sanitary Landfill | Deleted NPL Site | 42.24 |
| East Bethel Demolition Landfill | Deleted NPL Site | 28.75 |
| FMC Corp. (Fridley Plant) | NPL Site | 65.50 |
| Freeway Sanitary Landfill | NPL Site | 45.91 |
How does this site's HRS score compare in Minnesota?
Of the 49 Minnesota Superfund sites with a scored Hazard Ranking System (HRS) evaluation, Koppers Coke ranks #4 by score (55.05).
Either side of it: New Brighton/Arden Hills/TCAAP (USARMY) (59.16), Oakdale Dump (55.71), St. Regis Paper Co. (52.88), Pine Bend Sanitary Landfill (52.11)
Frequently Asked Questions
What is the Koppers Coke Superfund site? ▼
What does NPL listing mean for Koppers Coke? ▼
What is the HRS score for Koppers Coke? ▼
What contaminants are at the Koppers Coke site? ▼
What is the cleanup status of Koppers Coke? ▼
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.