EPA Air · by county
Air-emissions sources in Fremont County, Wyoming
- 20Facilities
Every stationary source in Fremont County, Wyoming that holds a Clean Air Act permit or is otherwise tracked by an air agency — planned, under construction, operating, seasonal or temporarily closed. Sources EPA records as permanently closed are not listed.
By emissions classification in Fremont County
A source’s classification is the size band its potential emissions put it in: a major source is large enough to need a Title V operating permit, a synthetic minor has accepted limits to stay below that line, and a minor source sits below it outright.
Inspections in Fremont County, by year
A compliance evaluation is the on-site or file review a state, local or federal air agency records against a permitted source.
- 2026 — inspections 4
- 2024 — inspections 4
- 2023 — inspections 3
- 2021 — inspections 4
- 2019 — inspections 4
- 2017 — inspections 5
Facilities
| Facility↑↓ | Classification↑↓ | HPV |
|---|---|---|
| AMOCO WINKLEMAN DOME | Minor source | No |
| BEAVER CREEK COMPRESSOR STATION (DENBURY ONSHORE, LLC) | Major source | No |
| BIGHORN DIVIDE & WY RAIL BONNEVILLE TRAN | Minor source | No |
| CHEMTRADE REFINERY SERVICES INC. (RIVERTON, WYOMING, SULFURIC ACID MANUFACTURING | Synthetic minor source | No |
| CIRCLE RIDGE TANK BATTERY | Minor source | No |
| COLORADO INTERSTATE GAS_LOST CABIN/MADDE | Minor source | No |
| CURLY 10-22 (AETHON ENERGY OPERATING LLC) | Minor source | No |
| LEGACY RES OP LP LONGS CREEK COMP STATIO | Minor source | No |
| LOST CABIN GAS PLANT (CONTANGO RESOURCES, LLC.) | Major source | Yes |
| MAVERICK SPRINGS TANK BATTERY | Minor source | No |
| MONETA COMPRESSOR STATION (AETHON ENERGY OPERATING LLC) | Minor source | No |
| PAVILLION COMPRESSOR STATION (ENCANA OIL AND GAS) | Minor source | No |
| RIVERTON DOME FACILITY | Major source | No |
| SAND DRAW COMPRESSOR STATION (BLACK HILLS GAS DISTRIBUTION LLC) | Minor source | No |
| SAND DRAW LANDFILL (FREMONT COUNTY SOLID WASTE DISPOSAL DISTRICT) | Minor source | No |
| SHOSHONI GROWING FACILITY (ROCKY MT. MUSHROOMS) | Minor source | No |
| STEAMBOAT BUTTE C1/C3 TANK BATTERY | Major source | No |
| STEAMBOAT BUTTE E5 TANK BATTERY | Major source | No |
| THOROFARE RESOURCES SOUTH SAND DRAW CS | Minor source | No |
| WESTERN WYOMING CONSTRUCTION: RE-25 | Minor source | No |
County as filed on the facility record. Figures from EPA’s ICIS-AIR download.