Browse Environmental Hazards
346 toxic release records found.
| Facility | City | State | Chemical | Carcinogen | Total Releases (lbs) | Industry |
|---|---|---|---|---|---|---|
| HARDIN GENERATING STATION | HARDIN | Montana | Manganese | No | 24,612 | Electric Utilities |
| HARDIN GENERATING STATION | HARDIN | Montana | Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | No | 24,299 | Electric Utilities |
| CHS INC. LAUREL REFINERY | LAUREL | Montana | Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | No | 21,593 | Petroleum |
| PAR MONTANA BILLINGS REFINERY | BILLINGS | Montana | n-Hexane | No | 20,105 | Petroleum |
| LUBRIZOL | VICTOR | Montana | Xylene (mixed isomers) | No | 20,046 | Miscellaneous Manufacturing |
| SMC NYE MINE SITE | NYE | Montana | Nitrate compounds (water dissociable; reportable only when in aqueous solution) | No | 19,187 | Metal Mining |
| COLSTRIP STEAM ELECTRIC STATION | COLSTRIP | Montana | Arsenic And Arsenic Compounds | No | 18,200 | Electric Utilities |
| PAR MONTANA BILLINGS REFINERY | BILLINGS | Montana | Ammonia | No | 16,900 | Petroleum |
| LFM LAUREL WEST | LAUREL | Montana | Styrene | No | 16,385 | Plastics and Rubber |
| COLSTRIP STEAM ELECTRIC STATION | COLSTRIP | Montana | Thallium And Thallium Compounds | No | 16,221 | Electric Utilities |
| CHS INC. LAUREL REFINERY | LAUREL | Montana | Propylene | No | 16,003 | Petroleum |
| CALUMET MONTANA REFINING LLC. | GREAT FALLS | Montana | Ethylene | No | 15,747 | Petroleum |
| MONTANA SULPHUR & CHEMICAL CO | BILLINGS | Montana | Hydrogen sulfide | No | 15,248 | Chemicals |
| COLSTRIP ENERGY LP ROSEBUD POWER PLANT | COLSTRIP | Montana | Zinc compounds | No | 15,137 | Electric Utilities |
| US ARMY NATIONAL GUARD LIMESTONE HILLS RANGES | TOWNSEND | Montana | Copper | No | 14,719 | Other |
| GCC-THREE FORKS LLC | THREE FORKS | Montana | Lead And Lead Compounds | No | 14,328 | Nonmetallic Mineral Product |
| COLSTRIP STEAM ELECTRIC STATION | COLSTRIP | Montana | Cobalt And Cobalt Compounds | No | 13,330 | Electric Utilities |
| COLSTRIP STEAM ELECTRIC STATION | COLSTRIP | Montana | Hydrogen fluoride | No | 13,000 | Electric Utilities |
| PHILLIPS 66 CO BILLINGS REFINERY | BILLINGS | Montana | Xylene (mixed isomers) | No | 12,794 | Petroleum |
| PHILLIPS 66 CO BILLINGS REFINERY | BILLINGS | Montana | Toluene | No | 11,881 | Petroleum |
| CHS INC. LAUREL REFINERY | LAUREL | Montana | n-Hexane | No | 11,634 | Petroleum |
| PHILLIPS 66 CO BILLINGS REFINERY | BILLINGS | Montana | n-Hexane | No | 11,339 | Petroleum |
| PHILLIPS 66 CO BILLINGS REFINERY | BILLINGS | Montana | Nitrate compounds (water dissociable; reportable only when in aqueous solution) | No | 11,002 | Petroleum |
| CALUMET MONTANA REFINING LLC. | GREAT FALLS | Montana | Ammonia | No | 10,515 | Petroleum |
| COLSTRIP STEAM ELECTRIC STATION | COLSTRIP | Montana | Selenium And Selenium Compounds | No | 10,410 | Electric Utilities |
| PHILLIPS 66 CO BILLINGS REFINERY | BILLINGS | Montana | Propylene | No | 9,532 | Petroleum |
| CHS INC. LAUREL REFINERY | LAUREL | Montana | Zinc compounds | No | 9,460 | Petroleum |
| AMERICAN CHEMET CORP | EAST HELENA | Montana | Copper And Copper Compounds | No | 9,251 | Chemicals |
| PAR MONTANA BILLINGS REFINERY | BILLINGS | Montana | Toluene | No | 8,917 | Petroleum |
| PAR MONTANA BILLINGS REFINERY | BILLINGS | Montana | Xylene (mixed isomers) | No | 8,851 | Petroleum |
| HEXION INC. | MISSOULA | Montana | Formaldehyde | No | 8,413 | Chemicals |
| PAR MONTANA BILLINGS REFINERY | BILLINGS | Montana | Ethylene | No | 8,301 | Petroleum |
| LFM LAUREL EAST | LAUREL | Montana | Styrene | No | 8,231 | Plastics and Rubber |
| PAR MONTANA BILLINGS REFINERY | BILLINGS | Montana | Diethanolamine | No | 8,210 | Petroleum |
| SMC NYE MINE SITE | NYE | Montana | Lead compounds | No | 7,713 | Metal Mining |
| HEXION INC. | MISSOULA | Montana | Methanol | No | 7,457 | Chemicals |
| PAR MONTANA BILLINGS REFINERY | BILLINGS | Montana | Hydrogen sulfide | No | 7,452 | Petroleum |
| CHS INC. LAUREL REFINERY | LAUREL | Montana | Xylene (mixed isomers) | No | 6,967 | Petroleum |
| CHS INC. LAUREL REFINERY | LAUREL | Montana | Hydrogen sulfide | No | 6,766 | Petroleum |
| ASH GROVE CEMENT CO MONTANA CITY PLANT | CLANCY | Montana | Lead compounds | No | 6,443 | Nonmetallic Mineral Product |
| US ARMY NATIONAL GUARD FORT HARRISON RANGES | FORT HARRISON | Montana | Lead | No | 6,419 | Other |
| CALUMET MONTANA REFINING LLC. | GREAT FALLS | Montana | Toluene | No | 6,235 | Petroleum |
| JUPITER SULPHUR LLC | BILLINGS | Montana | Hydrogen sulfide | No | 6,170 | Chemicals |
| BAKKEN GAS PLANT | SIDNEY | Montana | Methanol | No | 6,150 | Natural Gas Processing |
| COLSTRIP STEAM ELECTRIC STATION | COLSTRIP | Montana | Beryllium And Beryllium Compounds | No | 5,790 | Electric Utilities |
| MONTANA SILVERSMITHS | COLUMBUS | Montana | Dichloromethane | No | 5,678 | Miscellaneous Manufacturing |
| CHS INC. LAUREL REFINERY | LAUREL | Montana | Methanol | No | 5,293 | Petroleum |
| PAR MONTANA BILLINGS REFINERY | BILLINGS | Montana | Propylene | No | 5,203 | Petroleum |
| CHS INC. LAUREL REFINERY | LAUREL | Montana | Toluene | No | 4,767 | Petroleum |
| PHILLIPS 66 CO BILLINGS REFINERY | BILLINGS | Montana | Ethylene | No | 4,655 | Petroleum |