Homestake Mining Co.
NPL SiteMilan, NM
According to the EPA Superfund Enterprise Management System, Homestake Mining Co. in Milan, NM is listed with NPL status NPL Site. Its Hazard Ranking System (HRS) score is 34.21. The public extract catalogs 1 contaminant record 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 Mexico environmental agency.
What is the cleanup status of this Superfund site?
Contaminants
| Contaminant | Media |
|---|---|
| RADON | Air |
Location
Other Superfund Sites in New Mexico
| Site Name | Status | HRS Score |
|---|---|---|
| AT & SF (Clovis) | Deleted NPL Site | 33.62 |
| AT&SF (Albuquerque) | NPL Site | 50.00 |
| Cal West Metals (USSBA) | Deleted NPL Site | 59.37 |
| Carlisle Village Cleaners | NPL Site | 50.00 |
| Chevron Questa Mine | NPL Site | 50.00 |
| Cimarron Mining Corp. | Deleted NPL Site | 38.93 |
| Cleveland Mill | Deleted NPL Site | 40.37 |
| Eagle Picher Carefree Battery | NPL Site | 50.00 |
| Fruit Avenue Plume | NPL Site | 50.00 |
| Grants Chlorinated Solvents Plume | NPL Site | 50.00 |
How does this site's HRS score compare in New Mexico?
Of the 21 New Mexico Superfund sites with a scored Hazard Ranking System (HRS) evaluation, Homestake Mining Co. ranks #18 by score (34.21).
Either side of it: Cimarron Mining Corp. (38.93), Pagano Salvage (35.57), AT & SF (Clovis) (33.62), United Nuclear Corp. (30.36)
Frequently Asked Questions
What is the Homestake Mining Co. Superfund site? ▼
What does NPL listing mean for Homestake Mining Co.? ▼
What is the HRS score for Homestake Mining Co.? ▼
What contaminants are at the Homestake Mining Co. site? ▼
What is the cleanup status of Homestake Mining 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.