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 tier below it. 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.