EPA Air · by state
Air-emissions sources in Montana
- 167Facilities
By emissions classification in Montana
High-priority violations in Montana
5 sources in Montana carry a current high-priority Clean Air Act violation.
Counties in Montana
- Big Horn County 4
- Cascade County 12
- Custer County 3
- Fallon County 5
- Flathead County 7
- Gallatin County 11
- Glacier County 5
- Jefferson County 3
- Lewis and Clark County 13
- Madison County 3
- Missoula County 18
- Powell County 3
- Richland County 4
- Roosevelt County 7
- Rosebud County 3
- Silver Bow County 3
- Stillwater County 5
- Toole County 4
- Yellowstone County 24
Industries in Montana
Sources are grouped by the first industry code on the facility record.
- NAICS 9999 30
- Pipeline transportation (NAICS 4862) 22
- Utilities (NAICS 2211) 14
- Waste management and remediation (NAICS 5622) 7
- Merchant wholesalers, durable goods (NAICS 4239) 7
- Petroleum and coal products manufacturing (NAICS 3241) 7
- Merchant wholesalers, nondurable goods (NAICS 4247) 7
- Oil and gas extraction (NAICS 2111) 6
- Repair and maintenance (NAICS 8111) 6
- Chemical manufacturing (NAICS 3251) 5
- Mining and quarrying (NAICS 2122) 5
- Utilities (NAICS 2212) 4
- Fabricated metal product manufacturing (NAICS 3323) 3
Air inspections in Montana, by year
A compliance evaluation is the on-site or file review a state, local or federal air agency records against a permitted source.
Facilities
| Facility↑↓ | Classification↑↓ | HPV |
|---|---|---|
| MERIWETHER COMPRESSOR STATION | Synthetic minor source | No |
| MISSOULA RNG | Minor source | No |
| MONTANA AIR NATIONAL GUARD | Synthetic minor source | No |
| MONTANA DEPARTMENT OF TRANSPORTATION | Minor source | No |
| MONTANA FIBERGLASS INC | Major source | No |
| MONTANA SILVERSMITHS INC | Major source | No |
| MONTANA SULPHUR & CHEMICAL | Major source | No |
| MOUNTAIN STATES COLLISION REPAIR, INC. | Minor source | No |
| MPC - MISSOULA DIVISION | Minor source | No |
| MRL GREAT FALLS RENEWABLE FUELS PLANT | Major source | No |
| MSU - CENTRAL HEATING PLANT | Synthetic minor source | No |
| MT WASTE SYSTEMS - HIGH PLAINS LANDFILL | Major source | No |
| N. BORDER PIPELINE CO STA. 3 | Major source | No |
| NORTH MOULTON FIELD | Synthetic minor source | No |
| NORTHERN BORDER COMPRESSOR STATION #2 | Major source | No |
| NORTHERN BORDER PIPELINE CO STA 1 | Major source | No |
| NORTHWEST AUTOMOTIVE INC. | Minor source | No |
| NORTHWESTERN ENERGY MAINLINE #1 | Major source | No |
| O'DELL'S APPLIANCE | Minor source | No |
| OLD IRON RECYCLING | Minor source | No |
| PACIFIC RECYCLING | Minor source | No |
| PACIFIC RECYCLING | Minor source | No |
| PACIFIC RECYCLING | Minor source | No |
| PACIFIC STEEL & RECYCLING | Minor source | No |
| PACIFIC STEEL/HIDES RECYCLING | Minor source | No |
| PACIFIC STEEL/HIDES/FURS RECYCLING | Minor source | No |
| PAR MONTANA BILLINGS REFINERY | Major source | No |
| PAR MONTANA BULK TERMINAL | Major source | No |
| PHILLIPS 66 COMPANY - MISSOULA | Major source | No |
| PLATINUM CHEVROLET | Minor source | No |
| POLY CONOCO AUTO REPAIR | Minor source | No |
| PRAIRIE DELL CASCADE GAS PLANT | Synthetic minor source | No |
| PRO TECH MECHANICAL INC. | Minor source | No |
| QUALA SERVICES | Synthetic minor source | No |
| QUEEN CITY ICE PALACE | Minor source | No |
| RASSLER HEATING & AIR CONDITIONING INC | Minor source | No |
| RATHERT FOX FORD MERCURY, INC. | Minor source | No |
| ROCKY MOUNTAIN LABORATORIES FACILITY | Major source | No |
| ROCKY MOUNTAIN POWER | Major source | No |
| SILENT KNIGHT | Minor source | No |
| SOUTHGATE MALL | Minor source | No |
| STEEL ETC | Minor source | No |
| STILLWATER MINE | Major source | No |
| STILLWATER MINING CO SMELTER | Synthetic minor source | No |
| SUN MOUNTAIN LUMBER | Major source | No |
| TELSTAD FIELD STATION 033 | Synthetic minor source | No |
| THREE FORKS MILL | Major source | No |
| TRANSCO RAILWAY PRODUCTS | Synthetic minor source | No |
| TREASURE STATE CONCRETE, INC. | Minor source | No |
| TRIDENT | Major source | No |
| TRUENORTH STEEL - BILLINGS | Synthetic minor source | No |
| US ANTIMONY MINE & MILL | Minor source | No |
| V.W. ICE, INC. | Minor source | No |
| WBI SANDSTONE CREEK COMPRESSOR STATION | Minor source | No |
| WESTERN SUGAR COOPERATIVE | Major source | Yes |
| WEYERHAEUSER-CFALLS | Major source | Yes |
| WEYERHAEUSER-EVERGREEN | Major source | Yes |
| WILLISTON BASIN - BAKER COMPRESSOR STA | Major source | No |
| WILLISTON BASIN - CABIN CREEK | Major source | No |
| WILLISTON BASIN - FORT PECK STATION | Major source | No |
| WILLISTON BASIN - HATHAWAY STATION | Major source | No |
| WILLISTON BASIN - LITTLE BEAVER | Major source | No |
| WILLISTON BASIN - MONARCH STATION | Synthetic minor source | No |
| WILLISTON BASIN - SACO | Synthetic minor source | No |
| WILLISTON BASIN - VIDA STATION | Synthetic minor source | No |
| YELLOWSTONE COUNTY GENERATING STATION | Major source | No |
| YELLOWSTONE POWER PLANT | Major source | Yes |
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Figures from EPA’s ICIS-AIR download.