EPA Air · violations by state and year
High-priority air violations in Montana, 2017
- 16Violations
A high-priority violation is the most serious class of Clean Air Act non-compliance an agency records against a source; a federally reportable violation is the next step down in severity. Every violation below was recorded against a source in Montana during 2017; one facility can appear more than once, because this is a record of what happened rather than a list of places.
Counties in Montana, 2017
Montana, other years
High-priority air violations recorded in Montana, 2017
| Date | Facility | Where | Kind | Agency |
|---|---|---|---|---|
| 2017-12-04 | YELLOWSTONE POWER PLANT — high-priority violation on file | BILLINGS, Yellowstone, MT | Earliest FRV determination | State |
| 2017-11-22 | CHS INC REFINERY LAUREL | LAUREL, Yellowstone, MT | Earliest FRV determination | State |
| 2017-11-15 | CALUMET MONTANA REFINING — high-priority violation on file | GREAT FALLS, Cascade, MT | Earliest FRV determination | State |
| 2017-10-27 | BILLINGS TRANSPORTATION OPERATIONS | BILLINGS, Yellowstone, MT | HPV day-zero determination | State |
| 2017-09-27 | YELLOWSTONE POWER PLANT — high-priority violation on file | BILLINGS, Yellowstone, MT | Earliest FRV determination | State |
| 2017-09-21 | THREE FORKS MILL | THREE FORKS, Gallatin, MT | Earliest FRV determination | State |
| 2017-08-21 | PAR MONTANA BILLINGS REFINERY | BILLINGS, Yellowstone, MT | Earliest FRV determination | State |
| 2017-08-04 | SUN MOUNTAIN LUMBER | DEER LODGE, Powell, MT | Earliest FRV determination | State |
| 2017-07-21 | COLSTRIP ENERGY LTD PARTNERSHIP | COLSTRIP, Rosebud, MT | Earliest FRV determination | State |
| 2017-05-23 | YELLOWSTONE POWER PLANT — high-priority violation on file | BILLINGS, Yellowstone, MT | HPV day-zero determination | State |
| 2017-05-18 | YELLOWSTONE POWER PLANT — high-priority violation on file | BILLINGS, Yellowstone, MT | HPV day-zero determination | State |
| 2017-04-13 | DIAMOND HILL MINE | TOWNSEND, Broadwater, MT | Earliest FRV determination | State |
| 2017-03-17 | BILLINGS REFINERY | BILLINGS, Yellowstone, MT | Earliest FRV determination | State |
| 2017-03-14 | PAR MONTANA BILLINGS REFINERY | BILLINGS, Yellowstone, MT | Earliest FRV determination | State |
| 2017-03-01 | LEWIS AND CLARK COUNTY LANDFILL | HELENA, Lewis and Clark, MT | Earliest FRV determination | State |
| 2017-01-25 | BAKKEN GATHERING PLANT | SIDNEY, Richland, MT | Earliest FRV determination | State |
Dates as filed by the agency that recorded the violation. Figures from EPA’s ICIS-AIR download.
What this page shows
This page covers Clean Air Act facilities in the EPA air register with violations in MT in 2017. It lists 16 violations recorded in 2017.