EPA Air · by county and classification
Major sources in Yellowstone County, Montana
- 10Facilities
Sources in Yellowstone County, Montana that EPA records under the major source classification. The classification is a size band, set by a source’s potential to emit: a major source is large enough to require a Title V operating permit, a synthetic minor source has accepted enforceable limits that keep it under that threshold, and a minor source sits below it without needing them.
Other classifications in Yellowstone County
- Minor source 12
Facilities
| Facility↑↓ | Classification↑↓ | HPV |
|---|---|---|
| BILLINGS REFINERY | Major source | No |
| BILLINGS TRANSPORTATION OPERATIONS | Major source | No |
| CHS INC REFINERY LAUREL | Major source | No |
| CITY OF BILLINGS REGIONAL LANDFILL | Major source | No |
| MONTANA SULPHUR & CHEMICAL | Major source | No |
| PAR MONTANA BILLINGS REFINERY | Major source | No |
| PAR MONTANA BULK TERMINAL | Major source | No |
| WESTERN SUGAR COOPERATIVE | Major source | Yes |
| YELLOWSTONE COUNTY GENERATING STATION | Major source | No |
| YELLOWSTONE POWER PLANT | Major source | Yes |
Classification as filed on the facility record. Figures from EPA’s ICIS-AIR download.