| Polluter | Pollutants | Sources | Emissions |
|---|---|---|---|
| American Colloid_west Colony | 10 | 14 | 109,527.60 |
| American Colloid_east Colony | 9 | 12 | 282,282.81 |
| Belle Fourche Pipeline_donkey Creek | 1 | 7 | 485,200.00 |
| Bentonite Corp_colony Plant | 3 | 3 | 65,800.00 |
| Moorcroft Sanitary Landfill #2 | 28 | 28 | 411.96 |
| Neiman Sawmill | 3 | 8 | 270,400.00 |
| Sundance Sanitary Landfill | 28 | 28 | 441.68 |