11 facilities in Montana reported releasing a combined 358.1k pounds of ammonia to air, water, and land in 2024.
| Facility | City | On-site (lb) |
|---|---|---|
| Jupiter Sulphur Llc | Billings | 139.0k |
| Chs Inc. Laurel Refinery | Laurel | 62.2k |
| Weyerhaeuser Nr | Columbia Falls | 46.7k |
| Western Sugar Cooperative.130130 | Billings | 30.4k |
| Gcc-Three Forks Llc | Three Forks | 28.4k |
| Dave Gates Generating Station | Anaconda | 23.5k |
| Calumet Montana Refining Llc. | Great Falls | 9.2k |
| Par Montana Billings Refinery | Billings | 8.1k |
| Phillips 66 Co Billings Refinery | Billings | 4.5k |
| American Chemet Corp | East Helena | 3.4k |
| Rec Silicon | Butte | 2.9k |
← All Ammonia releases nationwide · Montana pollution overview