Dutchtown Treatment Plant
Deleted NPL SiteAscension Parish, LA
According to the EPA Superfund Enterprise Management System, Dutchtown Treatment Plant in Ascension Parish, LA is listed with NPL status Deleted NPL Site. Its Hazard Ranking System (HRS) score is 36.41. The public extract catalogs 3 contaminant records for this site. EPA marks construction of the cleanup remedy as complete. The site has been deleted from the NPL in the EPA record. 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 Louisiana environmental agency.
What is the cleanup status of this Superfund site?
Contaminants
| Contaminant | Media |
|---|---|
| BENZENE | Groundwater |
| ETHYLBENZENE | Groundwater |
| STYRENE | Groundwater |
Location
Other Superfund Sites in Louisiana
| Site Name | Status | HRS Score |
|---|---|---|
| Agriculture Street Landfill | NPL Site | 50.00 |
| American Creosote DeRidder | NPL Site | 50.00 |
| American Creosote Works, Inc. (Winnfield Plant) | NPL Site | 50.70 |
| Bayou Bonfouca | NPL Site | 29.78 |
| Bayou Sorrel | Deleted NPL Site | 34.69 |
| Capitol Lakes | NPL Site | 50.00 |
| Central Wood Preserving Co. | Deleted NPL Site | 48.53 |
| Cleve Reber | Deleted NPL Site | 48.80 |
| Colonial Creosote | NPL Site | 50.00 |
| Combustion, Inc. | NPL Site | 33.79 |
How does this site's HRS score compare in Louisiana?
Of the 29 Louisiana Superfund sites with a scored Hazard Ranking System (HRS) evaluation, Dutchtown Treatment Plant ranks #23 by score (36.41).
Either side of it: Petro-Processors of Louisiana, Inc. (41.44), PAB Oil & Chemical Service, Inc. (38.94), Bayou Sorrel (34.69), Combustion, Inc. (33.79)
Frequently Asked Questions
What is the Dutchtown Treatment Plant Superfund site? ▼
What does NPL listing mean for Dutchtown Treatment Plant? ▼
What is the HRS score for Dutchtown Treatment Plant? ▼
What contaminants are at the Dutchtown Treatment Plant site? ▼
What is the cleanup status of Dutchtown Treatment Plant? ▼
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.