EPA Air · stack tests by state and year
Air-emissions stack tests in Montana, 2017
- 332Stack 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 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
- Yellowstone County 105
- Rosebud County 42
- Glacier County 26
- Fallon County 25
- Cascade County 20
- Phillips County 12
- Blaine County 12
- Richland County 11
- Flathead County 10
- Silver Bow County 9
- Valley County 9
- Jefferson County 7
- Carbon County 7
- Lewis and Clark County 7
- Gallatin County 6
- Big Horn County 5
- Roosevelt County 4
- McCone County 4
- Toole County 3
Montana, other years
Air-emissions stack tests recorded in Montana, 2017
| Date | Facility | Where | Kind | Agency |
|---|---|---|---|---|
| 2017-09-11 | CHS INC REFINERY LAUREL | LAUREL, Yellowstone, MT | Pass | State |
| 2017-09-11 | CHS INC REFINERY LAUREL | LAUREL, Yellowstone, MT | Pass | State |
| 2017-09-11 | CHS INC REFINERY LAUREL | LAUREL, Yellowstone, MT | Pass | State |
| 2017-09-11 | CHS INC REFINERY LAUREL | LAUREL, Yellowstone, MT | Pass | State |
| 2017-09-11 | CHS INC REFINERY LAUREL | LAUREL, Yellowstone, MT | Pass | State |
| 2017-08-24 | CALUMET MONTANA REFINING — high-priority violation on file | GREAT FALLS, Cascade, MT | Pass | State |
| 2017-08-22 | GRAYMONT WESTERN US INC | TOWNSEND, Broadwater, MT | Pass | State |
| 2017-08-17 | WEYERHAEUSER-CFALLS — high-priority violation on file | COLUMBIA FALLS, Flathead, MT | Pass | State |
| 2017-08-14 | BILLINGS REFINERY | BILLINGS, Yellowstone, MT | Pass | State |
| 2017-08-14 | BILLINGS REFINERY | BILLINGS, Yellowstone, MT | Pass | State |
| 2017-08-11 | CHS INC REFINERY LAUREL | LAUREL, Yellowstone, MT | Pass | State |
| 2017-08-08 | CALUMET MONTANA REFINING — high-priority violation on file | GREAT FALLS, Cascade, MT | Pass | State |
| 2017-08-07 | TRIDENT | THREE FORKS, Gallatin, MT | Pass | State |
| 2017-08-07 | TRIDENT | THREE FORKS, Gallatin, MT | Pass | State |
| 2017-08-07 | TRIDENT | THREE FORKS, Gallatin, MT | Pass | State |
| 2017-08-07 | TRIDENT | THREE FORKS, Gallatin, MT | Pass | State |
| 2017-08-04 | ALLIED WASTE SYSTEMS | MISSOULA, Missoula, MT | Pass | State |
| 2017-08-03 | HELENA PRODUCT TERMINAL | HELENA, Lewis and Clark, MT | Pass | State |
| 2017-07-21 | COLSTRIP ENERGY LTD PARTNERSHIP | COLSTRIP, Rosebud, MT | Pass | State |
| 2017-07-21 | COLSTRIP ENERGY LTD PARTNERSHIP | COLSTRIP, Rosebud, MT | Pass | State |
| 2017-07-21 | COLSTRIP ENERGY LTD PARTNERSHIP | COLSTRIP, Rosebud, MT | Pass | State |
| 2017-07-21 | PAR MONTANA BILLINGS REFINERY | BILLINGS, Yellowstone, MT | Pass | State |
| 2017-07-20 | CHS INC REFINERY LAUREL | LAUREL, Yellowstone, MT | Pass | State |
| 2017-07-20 | CHS INC REFINERY LAUREL | LAUREL, Yellowstone, MT | Pass | State |
| 2017-07-20 | CHS INC REFINERY LAUREL | LAUREL, Yellowstone, MT | Pass | State |
| 2017-07-20 | CHS INC REFINERY LAUREL | LAUREL, Yellowstone, MT | Pass | State |
| 2017-07-20 | CHS INC REFINERY LAUREL | LAUREL, Yellowstone, MT | Pass | State |
| 2017-07-20 | CHS INC REFINERY LAUREL | LAUREL, Yellowstone, MT | Pass | State |
| 2017-07-20 | CHS INC REFINERY LAUREL | LAUREL, Yellowstone, MT | Pass | State |
| 2017-07-20 | CHS INC REFINERY LAUREL | LAUREL, Yellowstone, MT | Pass | State |
| 2017-07-14 | YELLOWSTONE POWER PLANT — high-priority violation on file | BILLINGS, Yellowstone, MT | Pass | State |
| 2017-07-14 | YELLOWSTONE POWER PLANT — high-priority violation on file | BILLINGS, Yellowstone, MT | Fail | State |
| 2017-07-14 | YELLOWSTONE POWER PLANT — high-priority violation on file | BILLINGS, Yellowstone, MT | Pass | State |
| 2017-07-14 | YELLOWSTONE POWER PLANT — high-priority violation on file | BILLINGS, Yellowstone, MT | Fail | State |
| 2017-07-13 | WILLISTON BASIN - VIDA STATION | VIDA, McCone, MT | Pass | State |
| 2017-07-13 | MDU - LEWIS & CLARK STATION | SIDNEY, Richland, MT | Pass | State |
| 2017-07-13 | MDU - LEWIS & CLARK STATION | SIDNEY, Richland, MT | Pass | State |
| 2017-07-13 | MDU - LEWIS & CLARK STATION | SIDNEY, Richland, MT | Pass | State |
| 2017-07-12 | PAR MONTANA BULK TERMINAL | BILLINGS, Yellowstone, MT | Pass | State |
| 2017-07-07 | CHS INC REFINERY LAUREL | LAUREL, Yellowstone, MT | Pass | State |
| 2017-07-07 | CHS INC REFINERY LAUREL | LAUREL, Yellowstone, MT | Pass | State |
| 2017-07-07 | CHS INC REFINERY LAUREL | LAUREL, Yellowstone, MT | Pass | State |
| 2017-07-07 | CHS INC REFINERY LAUREL | LAUREL, Yellowstone, MT | Pass | State |
| 2017-07-07 | CHS INC REFINERY LAUREL | LAUREL, Yellowstone, MT | Pass | State |
| 2017-06-27 | DRY CREEK FIELD STATION 056 | RED LODGE, Carbon, MT | Pass | State |
| 2017-06-27 | DRY CREEK FIELD STATION 056 | RED LODGE, Carbon, MT | Pass | State |
| 2017-06-27 | DRY CREEK FIELD STATION 056 | RED LODGE, Carbon, MT | Pass | State |
| 2017-06-23 | COLSTRIP STEAM ELECTRIC STATION | COLSTRIP, Rosebud, MT | Pass | State |
| 2017-06-23 | COLSTRIP STEAM ELECTRIC STATION | COLSTRIP, Rosebud, MT | Pass | State |
| 2017-06-23 | COLSTRIP STEAM ELECTRIC STATION | COLSTRIP, Rosebud, MT | Pass | State |
| 2017-06-23 | COLSTRIP STEAM ELECTRIC STATION | COLSTRIP, Rosebud, MT | Pass | State |
| 2017-06-23 | COLSTRIP STEAM ELECTRIC STATION | COLSTRIP, Rosebud, MT | Pass | State |
| 2017-06-23 | COLSTRIP STEAM ELECTRIC STATION | COLSTRIP, Rosebud, MT | Pass | State |
| 2017-06-21 | ASH GROVE CEMENT | CLANCY, Jefferson, MT | Pass | State |
| 2017-06-21 | ASH GROVE CEMENT | CLANCY, Jefferson, MT | Pass | State |
| 2017-06-21 | ASH GROVE CEMENT | CLANCY, Jefferson, MT | Pass | State |
| 2017-06-21 | BARRICK GOLDEN SUNLIGHT MINE | WHITEHALL, Jefferson, MT | Pass | State |
| 2017-06-21 | ROCKY MOUNTAIN LABORATORIES FACILITY | HAMILTON, Ravalli, MT | Pass | State |
| 2017-06-21 | ROCKY MOUNTAIN LABORATORIES FACILITY | HAMILTON, Ravalli, MT | Pass | State |
| 2017-06-16 | CHS INC REFINERY LAUREL | LAUREL, Yellowstone, MT | Pass | State |
| 2017-06-16 | CHS INC REFINERY LAUREL | LAUREL, Yellowstone, MT | Pass | State |
| 2017-06-16 | CHS INC REFINERY LAUREL | LAUREL, Yellowstone, MT | Pass | State |
| 2017-06-16 | CHS INC REFINERY LAUREL | LAUREL, Yellowstone, MT | Pass | State |
| 2017-06-16 | CHS INC REFINERY LAUREL | LAUREL, Yellowstone, MT | Pass | State |
| 2017-06-16 | CHS INC REFINERY LAUREL | LAUREL, Yellowstone, MT | Pass | State |
| 2017-06-15 | WBI SANDSTONE CREEK COMPRESSOR STATION | BAKER, Fallon, MT | Pass | State |
| 2017-06-15 | WILLISTON BASIN - VIDA STATION | VIDA, McCone, MT | Pass | State |
| 2017-06-15 | WILLISTON BASIN - FORT PECK STATION | NASHUA, Valley, MT | Pass | State |
| 2017-06-15 | WILLISTON BASIN - FORT PECK STATION | NASHUA, Valley, MT | Pass | State |
| 2017-06-15 | WILLISTON BASIN - FORT PECK STATION | NASHUA, Valley, MT | Pass | State |
| 2017-06-15 | WILLISTON BASIN - SACO | SACO, Phillips, MT | Pass | State |
| 2017-06-15 | WILLISTON BASIN - SACO | SACO, Phillips, MT | Pass | State |
| 2017-06-15 | WILLISTON BASIN - SACO | SACO, Phillips, MT | Pass | State |
| 2017-06-15 | WILLISTON BASIN - SACO | SACO, Phillips, MT | Pass | State |
| 2017-06-14 | N. BORDER PIPELINE CO STA. 3 | CULBERTSON, Roosevelt, MT | Pass | State |
| 2017-06-02 | MDU - LEWIS & CLARK STATION | SIDNEY, Richland, MT | Pass | State |
| 2017-06-02 | MDU - LEWIS & CLARK STATION | SIDNEY, Richland, MT | Pass | State |
| 2017-06-01 | WILLISTON BASIN - CABIN CREEK | BAKER, Fallon, MT | Pass | State |
| 2017-05-30 | CHS INC REFINERY LAUREL | LAUREL, Yellowstone, MT | Pass | State |
| 2017-05-30 | CHS INC REFINERY LAUREL | LAUREL, Yellowstone, MT | Pass | State |
| 2017-05-30 | CHS INC REFINERY LAUREL | LAUREL, Yellowstone, MT | Pass | State |
| 2017-05-26 | CHS INC REFINERY LAUREL | LAUREL, Yellowstone, MT | Pass | State |
| 2017-05-26 | CHS INC REFINERY LAUREL | LAUREL, Yellowstone, MT | Pass | State |
| 2017-05-26 | CHS INC REFINERY LAUREL | LAUREL, Yellowstone, MT | Pass | State |
| 2017-05-26 | YELLOWSTONE POWER PLANT — high-priority violation on file | BILLINGS, Yellowstone, MT | Pass | State |
| 2017-05-19 | TRIDENT | THREE FORKS, Gallatin, MT | Pass | State |
| 2017-05-12 | WILLISTON BASIN - HATHAWAY STATION | HATHAWAY, Rosebud, MT | Pass | State |
| 2017-05-12 | WILLISTON BASIN - HATHAWAY STATION | HATHAWAY, Rosebud, MT | Pass | State |
| 2017-05-12 | WILLISTON BASIN - CABIN CREEK | BAKER, Fallon, MT | Pass | State |
| 2017-05-12 | WILLISTON BASIN - BAKER COMPRESSOR STA | BAKER, Fallon, MT | Pass | State |
| 2017-05-12 | WBI SANDSTONE CREEK COMPRESSOR STATION | BAKER, Fallon, MT | Pass | State |
| 2017-05-12 | WBI SANDSTONE CREEK COMPRESSOR STATION | BAKER, Fallon, MT | Pass | State |
| 2017-05-12 | WBI SANDSTONE CREEK COMPRESSOR STATION | BAKER, Fallon, MT | Pass | State |
| 2017-05-11 | MALMSTROM AFB | GREAT FALLS, Cascade, MT | Pass | State |
| 2017-05-11 | CHS INC REFINERY LAUREL | LAUREL, Yellowstone, MT | Pass | State |
| 2017-05-11 | CHS INC REFINERY LAUREL | LAUREL, Yellowstone, MT | Pass | State |
| 2017-05-11 | CHS INC REFINERY LAUREL | LAUREL, Yellowstone, MT | Pass | State |
| 2017-05-11 | CHS INC REFINERY LAUREL | LAUREL, Yellowstone, MT | Pass | State |
| 2017-05-11 | CHS INC REFINERY LAUREL | LAUREL, Yellowstone, MT | Pass | State |
| 2017-05-11 | CHS INC REFINERY LAUREL | LAUREL, Yellowstone, MT | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.