| Polluter | Pollutants | Sources | Emissions |
|---|---|---|---|
| Absarokee #054-1 | 5 | 11 | 0.00 |
| Blackstone Operating | 6 | 13 | 0.00 |
| Montana Silversmiths | 1 | 1 | 33,408.00 |
| Smc Nye Mine Site | 3 | 4 | 17.60 |
| Smc Precious Metals Smelter & Base Metal Refy. | 3 | 6 | 302.00 |
| Stillwater Mine | 6 | 76 | 904,000.00 |
| Stillwater Mining Co Smelter | 5 | 88 | 66,000.00 |