EPA Air · by state and industry
Mining and quarrying (NAICS 2122) air sources in Montana
- 5Facilities
Permitted air-emissions sources in Montana whose primary industry code is NAICS 2122. A facility filing more than one industry code is counted under the first one on its record, so a plant with several lines appears once, under the line EPA lists first.
Inspections of mining and quarrying (naics 2122) in Montana, by year
A compliance evaluation is the on-site or file review a state, local or federal air agency records against a permitted source.
Facilities
| Facility↑↓ | Classification↑↓ | HPV |
|---|---|---|
| BARRICK GOLDEN SUNLIGHT MINE | Major source | No |
| BLACK BUTTE COPPER PROJECT | Major source | No |
| BUTTE HIGHLANDS PROJECT | Major source | No |
| DIAMOND HILL MINE | Synthetic minor source | No |
| STILLWATER MINE | Major source | No |
Primary NAICS code as filed on the facility record. Figures from EPA’s ICIS-AIR download.