EPA Air · stack tests by state and year
Air-emissions stack tests in Montana, 2018
- 269Stack tests
A stack test measures what a source actually emits, at the stack, against the limit in its permit. Every stack test below was recorded against a source in Montana during 2018; one facility can appear more than once, because this is a record of what happened rather than a list of places.
Counties in Montana, 2018
- Yellowstone County 95
- Rosebud County 38
- Fallon County 32
- Glacier County 13
- Cascade County 11
- Richland County 8
- Phillips County 8
- Silver Bow County 8
- Deer Lodge County 7
- Valley County 6
- Carbon County 6
- Jefferson County 6
- Dawson County 5
- Big Horn County 5
- McCone County 4
- Flathead County 4
- Gallatin County 4
- Stillwater County 4
Montana, other years
Air-emissions stack tests recorded in Montana, 2018
| Date | Facility | Where | Kind | Agency |
|---|---|---|---|---|
| 2018-08-20 | COLSTRIP STEAM ELECTRIC STATION | COLSTRIP, Rosebud, MT | Fail | State |
| 2018-08-20 | COLSTRIP STEAM ELECTRIC STATION | COLSTRIP, Rosebud, MT | Fail | State |
| 2018-08-14 | ALLIED WASTE SYSTEMS | MISSOULA, Missoula, MT | Pass | State |
| 2018-08-09 | NORTHWESTERN ENERGY MAINLINE #1 | CUT BANK, Glacier, MT | Pass | State |
| 2018-08-09 | NORTHWESTERN ENERGY MAINLINE #1 | CUT BANK, Glacier, MT | Pass | State |
| 2018-08-09 | NORTHWESTERN ENERGY MAINLINE #1 | CUT BANK, Glacier, MT | Pass | State |
| 2018-08-09 | NORTHWESTERN ENERGY MAINLINE #1 | CUT BANK, Glacier, MT | Pass | State |
| 2018-08-09 | NORTHWESTERN ENERGY MAINLINE #1 | CUT BANK, Glacier, MT | Pass | State |
| 2018-08-09 | NORTHWESTERN ENERGY MAINLINE #1 | CUT BANK, Glacier, MT | Pass | State |
| 2018-08-06 | MDU - LEWIS & CLARK STATION | SIDNEY, Richland, MT | Pass | State |
| 2018-08-06 | MDU - LEWIS & CLARK STATION | SIDNEY, Richland, MT | Pass | State |
| 2018-08-02 | BILLINGS TRANSPORTATION OPERATIONS | BILLINGS, Yellowstone, MT | Pass | State |
| 2018-07-31 | CHS INC REFINERY LAUREL | LAUREL, Yellowstone, MT | Pass | State |
| 2018-07-31 | CHS INC REFINERY LAUREL | LAUREL, Yellowstone, MT | Pass | State |
| 2018-07-31 | CHS INC REFINERY LAUREL | LAUREL, Yellowstone, MT | Pass | State |
| 2018-07-31 | CHS INC REFINERY LAUREL | LAUREL, Yellowstone, MT | Pass | State |
| 2018-07-30 | MDU - LEWIS & CLARK STATION | SIDNEY, Richland, MT | Pass | State |
| 2018-07-30 | MDU - LEWIS & CLARK STATION | SIDNEY, Richland, MT | Pass | State |
| 2018-07-30 | BILLINGS REFINERY | BILLINGS, Yellowstone, MT | Pass | State |
| 2018-07-27 | WEYERHAEUSER-EVERGREEN — high-priority violation on file | KALISPELL, Flathead, MT | Pass | State |
| 2018-07-27 | TRIDENT | THREE FORKS, Gallatin, MT | Pass | State |
| 2018-07-27 | TRIDENT | THREE FORKS, Gallatin, MT | Pass | State |
| 2018-07-27 | TRIDENT | THREE FORKS, Gallatin, MT | Pass | State |
| 2018-07-23 | PAR MONTANA BILLINGS REFINERY | BILLINGS, Yellowstone, MT | Pass | State |
| 2018-07-23 | PAR MONTANA BILLINGS REFINERY | BILLINGS, Yellowstone, MT | Pass | State |
| 2018-07-20 | WILLISTON BASIN - HATHAWAY STATION | HATHAWAY, Rosebud, MT | Pass | State |
| 2018-07-20 | WILLISTON BASIN - HATHAWAY STATION | HATHAWAY, Rosebud, MT | Pass | State |
| 2018-07-20 | WILLISTON BASIN - CABIN CREEK | BAKER, Fallon, MT | Pass | State |
| 2018-07-20 | WBI SANDSTONE CREEK COMPRESSOR STATION | BAKER, Fallon, MT | Pass | State |
| 2018-07-20 | WILLISTON BASIN - VIDA STATION | VIDA, McCone, MT | Pass | State |
| 2018-07-20 | WILLISTON BASIN - VIDA STATION | VIDA, McCone, MT | Pass | State |
| 2018-07-19 | ASH GROVE CEMENT | CLANCY, Jefferson, MT | Pass | State |
| 2018-07-19 | ASH GROVE CEMENT | CLANCY, Jefferson, MT | Pass | State |
| 2018-07-19 | ASH GROVE CEMENT | CLANCY, Jefferson, MT | Pass | State |
| 2018-07-06 | CALUMET MONTANA REFINING — high-priority violation on file | GREAT FALLS, Cascade, MT | Pass | State |
| 2018-07-06 | CALUMET MONTANA REFINING — high-priority violation on file | GREAT FALLS, Cascade, MT | Pass | State |
| 2018-07-06 | CALUMET MONTANA REFINING — high-priority violation on file | GREAT FALLS, Cascade, MT | Pass | State |
| 2018-07-06 | CALUMET MONTANA REFINING — high-priority violation on file | GREAT FALLS, Cascade, MT | Pass | State |
| 2018-07-06 | CALUMET MONTANA REFINING — high-priority violation on file | GREAT FALLS, Cascade, MT | Pass | State |
| 2018-07-03 | ASH GROVE CEMENT | CLANCY, Jefferson, MT | Pass | State |
| 2018-06-28 | PAR MONTANA BULK TERMINAL | BILLINGS, Yellowstone, MT | Pass | State |
| 2018-06-22 | WILLISTON BASIN - FORT PECK STATION | NASHUA, Valley, MT | Pass | State |
| 2018-06-22 | BILLINGS REFINERY | BILLINGS, Yellowstone, MT | Pass | State |
| 2018-06-19 | SUN MOUNTAIN LUMBER | DEER LODGE, Powell, MT | Pass | State |
| 2018-06-15 | DRY CREEK FIELD STATION 056 | RED LODGE, Carbon, MT | Pass | State |
| 2018-06-15 | DRY CREEK FIELD STATION 056 | RED LODGE, Carbon, MT | Pass | State |
| 2018-06-15 | DRY CREEK FIELD STATION 056 | RED LODGE, Carbon, MT | Pass | State |
| 2018-06-14 | CALUMET MONTANA REFINING — high-priority violation on file | GREAT FALLS, Cascade, MT | Pass | State |
| 2018-06-11 | WILLISTON BASIN - FORT PECK STATION | NASHUA, Valley, MT | Pass | State |
| 2018-06-11 | WILLISTON BASIN - FORT PECK STATION | NASHUA, Valley, MT | Pass | State |
| 2018-06-11 | WILLISTON BASIN - SACO | SACO, Phillips, MT | Pass | State |
| 2018-06-11 | WILLISTON BASIN - SACO | SACO, Phillips, MT | Pass | State |
| 2018-06-11 | WILLISTON BASIN - SACO | SACO, Phillips, MT | Pass | State |
| 2018-06-11 | WILLISTON BASIN - SACO | SACO, Phillips, MT | Pass | State |
| 2018-06-05 | BARRICK GOLDEN SUNLIGHT MINE | WHITEHALL, Jefferson, MT | Pass | State |
| 2018-05-24 | CHS INC REFINERY LAUREL | LAUREL, Yellowstone, MT | Pass | State |
| 2018-05-24 | CHS INC REFINERY LAUREL | LAUREL, Yellowstone, MT | Pass | State |
| 2018-05-24 | CHS INC REFINERY LAUREL | LAUREL, Yellowstone, MT | Pass | State |
| 2018-05-24 | CHS INC REFINERY LAUREL | LAUREL, Yellowstone, MT | Pass | State |
| 2018-05-19 | YELLOWSTONE POWER PLANT — high-priority violation on file | BILLINGS, Yellowstone, MT | Pass | State |
| 2018-05-19 | YELLOWSTONE POWER PLANT — high-priority violation on file | BILLINGS, Yellowstone, MT | Pass | State |
| 2018-05-19 | YELLOWSTONE POWER PLANT — high-priority violation on file | BILLINGS, Yellowstone, MT | Pass | State |
| 2018-05-19 | YELLOWSTONE POWER PLANT — high-priority violation on file | BILLINGS, Yellowstone, MT | Pass | State |
| 2018-05-18 | CHS INC REFINERY LAUREL | LAUREL, Yellowstone, MT | Pass | State |
| 2018-05-18 | CHS INC REFINERY LAUREL | LAUREL, Yellowstone, MT | Pass | State |
| 2018-05-18 | CHS INC REFINERY LAUREL | LAUREL, Yellowstone, MT | Pass | State |
| 2018-05-18 | YELLOWSTONE POWER PLANT — high-priority violation on file | BILLINGS, Yellowstone, MT | Pass | State |
| 2018-05-17 | CHS INC REFINERY LAUREL | LAUREL, Yellowstone, MT | Fail | State |
| 2018-05-14 | WILLISTON BASIN - CABIN CREEK | BAKER, Fallon, MT | Pass | State |
| 2018-05-14 | WILLISTON BASIN - CABIN CREEK | BAKER, Fallon, MT | Pass | State |
| 2018-05-14 | WILLISTON BASIN - BAKER COMPRESSOR STA | BAKER, Fallon, MT | Pass | State |
| 2018-05-14 | WBI SANDSTONE CREEK COMPRESSOR STATION | BAKER, Fallon, MT | Pass | State |
| 2018-05-14 | WBI SANDSTONE CREEK COMPRESSOR STATION | BAKER, Fallon, MT | Pass | State |
| 2018-05-14 | WBI SANDSTONE CREEK COMPRESSOR STATION | BAKER, Fallon, MT | Pass | State |
| 2018-05-14 | WBI SANDSTONE CREEK COMPRESSOR STATION | BAKER, Fallon, MT | Pass | State |
| 2018-05-08 | STILLWATER MINING CO SMELTER | COLUMBUS, Stillwater, MT | Pass | State |
| 2018-05-08 | STILLWATER MINING CO SMELTER | COLUMBUS, Stillwater, MT | Pass | State |
| 2018-05-08 | STILLWATER MINING CO SMELTER | COLUMBUS, Stillwater, MT | Pass | State |
| 2018-05-08 | STILLWATER MINING CO SMELTER | COLUMBUS, Stillwater, MT | Pass | State |
| 2018-05-03 | CHS INC REFINERY LAUREL | LAUREL, Yellowstone, MT | Pass | State |
| 2018-05-03 | CHS INC REFINERY LAUREL | LAUREL, Yellowstone, MT | Pass | State |
| 2018-05-03 | CHS INC REFINERY LAUREL | LAUREL, Yellowstone, MT | Pass | State |
| 2018-05-03 | CHS INC REFINERY LAUREL | LAUREL, Yellowstone, MT | Pass | State |
| 2018-05-03 | CHS INC REFINERY LAUREL | LAUREL, Yellowstone, MT | Pass | State |
| 2018-05-03 | CHS INC REFINERY LAUREL | LAUREL, Yellowstone, MT | Pass | State |
| 2018-04-30 | MDU - LEWIS & CLARK STATION | SIDNEY, Richland, MT | Pass | State |
| 2018-04-30 | MDU - LEWIS & CLARK STATION | SIDNEY, Richland, MT | Pass | State |
| 2018-04-30 | BILLINGS REFINERY | BILLINGS, Yellowstone, MT | Pass | State |
| 2018-04-30 | BILLINGS REFINERY | BILLINGS, Yellowstone, MT | Fail | State |
| 2018-04-30 | BILLINGS REFINERY | BILLINGS, Yellowstone, MT | Fail | State |
| 2018-04-12 | CALUMET MONTANA REFINING — high-priority violation on file | GREAT FALLS, Cascade, MT | Pass | State |
| 2018-04-12 | CALUMET MONTANA REFINING — high-priority violation on file | GREAT FALLS, Cascade, MT | Pass | State |
| 2018-04-09 | MDU - LEWIS & CLARK STATION | SIDNEY, Richland, MT | Pass | State |
| 2018-04-09 | BILLINGS REFINERY | BILLINGS, Yellowstone, MT | Fail | State |
| 2018-03-27 | CHS INC REFINERY LAUREL | LAUREL, Yellowstone, MT | Pass | State |
| 2018-03-27 | CHS INC REFINERY LAUREL | LAUREL, Yellowstone, MT | Pass | State |
| 2018-03-20 | MSU - CENTRAL HEATING PLANT | BOZEMAN, Gallatin, MT | Pass | State |
| 2018-03-12 | WILLISTON BASIN - LITTLE BEAVER | BAKER, Fallon, MT | Pass | State |
| 2018-03-12 | WILLISTON BASIN - CABIN CREEK | BAKER, Fallon, MT | Pass | State |
| 2018-03-12 | WILLISTON BASIN - CABIN CREEK | BAKER, Fallon, MT | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.