4 facilities in Montana reported releasing a combined 12.8M pounds of manganese compounds to air, water, and land in 2024.
| Facility | City | On-site (lb) |
|---|---|---|
| Montana Resources Llc | Butte | 11.8M |
| Colstrip Steam Electric Station | Colstrip | 1.0M |
| Smc Precious Metals Smelter & Base Metals Refinery | Columbus | 5 |
| Chs Great Falls Feed | Great Falls | 0 |
← All Manganese compounds releases nationwide · Montana pollution overview