Northwest Pipe & Casing/Hall Process Co
NPL SiteClackamas, OR
According to the EPA Superfund Enterprise Management System, Northwest Pipe & Casing/Hall Process Co in Clackamas, OR is listed with NPL status NPL Site. Its Hazard Ranking System (HRS) score is 51.09. The public extract catalogs 15 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 Oregon environmental agency.
What is the cleanup status of this Superfund site?
Contaminants
| Contaminant | Media |
|---|---|
| ARSENIC | Groundwater |
| BENZO(B)FLUORANTHENE | Soil |
| BENZO(K)FLUORANTHENE | Soil |
| BENZO[A]ANTHRACENE | Soil |
| BENZO[A]PYRENE | Soil |
| CHLOROETHENE (VINYL CHLORIDE) | Groundwater |
| CHLOROETHENE (VINYL CHLORIDE) | Soil |
| CHRYSENE | Soil |
| DIBENZO(A,H)ANTHRACENE | Soil |
| INDENO(1,2,3-CD)PYRENE | Soil |
| POLYCHLORINATED BIPHENYLS (PCBs) | Soil |
| TETRACHLOROETHENE | Groundwater |
| TETRACHLOROETHENE | Soil |
| TRICHLOROETHENE | Groundwater |
| TRICHLOROETHENE | Soil |
Location
Other Superfund Sites in Oregon
| Site Name | Status | HRS Score |
|---|---|---|
| Allied Plating, Inc. | Deleted NPL Site | 39.25 |
| Astoria Marine Construction Company | Proposed NPL Site | 50.00 |
| Black Butte Mine | NPL Site | 50.00 |
| Bradford Island | NPL Site | 50.00 |
| Formosa Mine | NPL Site | 50.00 |
| Fremont National Forest/White King and Lucky Lass Uranium Mines (USDA) | NPL Site | 50.00 |
| Gould, Inc. | Deleted NPL Site | 32.12 |
| Harbor Oil | Deleted NPL Site | 48.00 |
| J. H. Baxter | NPL Site | 31.70 |
| Joseph Forest Products | Deleted NPL Site | 32.60 |
How does this site's HRS score compare in Oregon?
Of the 21 Oregon Superfund sites with a scored Hazard Ranking System (HRS) evaluation, Northwest Pipe & Casing/Hall Process Co ranks #4 by score (51.09).
Either side of it: Reynolds Metals Company (70.71), Teledyne Wah Chang (54.27), Astoria Marine Construction Company (50.00), Black Butte Mine (50.00)
Frequently Asked Questions
What is the Northwest Pipe & Casing/Hall Process Co Superfund site? ▼
What does NPL listing mean for Northwest Pipe & Casing/Hall Process Co? ▼
What is the HRS score for Northwest Pipe & Casing/Hall Process Co? ▼
What contaminants are at the Northwest Pipe & Casing/Hall Process Co site? ▼
What is the cleanup status of Northwest Pipe & Casing/Hall Process Co? ▼
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.