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 |
|---|---|---|---|---|
| 2017-12-26 | BILLINGS REFINERY | BILLINGS, Yellowstone, MT | Pass | State |
| 2017-12-26 | BILLINGS REFINERY | BILLINGS, Yellowstone, MT | Pass | State |
| 2017-12-26 | BILLINGS REFINERY | BILLINGS, Yellowstone, MT | Pass | State |
| 2017-12-26 | BILLINGS REFINERY | BILLINGS, Yellowstone, MT | Pass | State |
| 2017-12-26 | BILLINGS REFINERY | BILLINGS, Yellowstone, MT | Pass | State |
| 2017-12-26 | BILLINGS REFINERY | BILLINGS, Yellowstone, MT | Pass | State |
| 2017-12-26 | BILLINGS REFINERY | BILLINGS, Yellowstone, MT | Pass | State |
| 2017-12-26 | BILLINGS REFINERY | BILLINGS, Yellowstone, MT | Fail | State |
| 2017-12-26 | BILLINGS REFINERY | BILLINGS, Yellowstone, MT | Pass | State |
| 2017-12-26 | BILLINGS REFINERY | BILLINGS, Yellowstone, MT | Pass | State |
| 2017-12-26 | BILLINGS REFINERY | BILLINGS, Yellowstone, MT | Pass | State |
| 2017-12-26 | BILLINGS REFINERY | BILLINGS, Yellowstone, MT | Pass | State |
| 2017-12-26 | BILLINGS REFINERY | BILLINGS, Yellowstone, MT | Pass | State |
| 2017-12-26 | BILLINGS REFINERY | BILLINGS, Yellowstone, MT | Pass | State |
| 2017-12-22 | ROCKY MOUNTAIN POWER | HARDIN, Big Horn, MT | Pass | State |
| 2017-12-22 | ROCKY MOUNTAIN POWER | HARDIN, Big Horn, MT | Pass | State |
| 2017-12-22 | ROCKY MOUNTAIN POWER | HARDIN, Big Horn, MT | Pass | State |
| 2017-12-22 | ROCKY MOUNTAIN POWER | HARDIN, Big Horn, MT | Pass | State |
| 2017-12-19 | WILLISTON BASIN - CABIN CREEK | BAKER, Fallon, MT | Pass | State |
| 2017-12-19 | WILLISTON BASIN - CABIN CREEK | BAKER, Fallon, MT | Pass | State |
| 2017-12-19 | WILLISTON BASIN - CABIN CREEK | BAKER, Fallon, MT | Pass | State |
| 2017-12-19 | WBI SANDSTONE CREEK COMPRESSOR STATION | BAKER, Fallon, MT | Pass | State |
| 2017-12-19 | WBI SANDSTONE CREEK COMPRESSOR STATION | BAKER, Fallon, MT | Pass | State |
| 2017-12-19 | WBI SANDSTONE CREEK COMPRESSOR STATION | BAKER, Fallon, MT | Pass | State |
| 2017-12-19 | WBI SANDSTONE CREEK COMPRESSOR STATION | BAKER, Fallon, MT | Pass | State |
| 2017-12-19 | WBI SANDSTONE CREEK COMPRESSOR STATION | BAKER, Fallon, MT | Pass | State |
| 2017-12-19 | WBI SANDSTONE CREEK COMPRESSOR STATION | BAKER, Fallon, MT | Pass | State |
| 2017-12-19 | WBI SANDSTONE CREEK COMPRESSOR STATION | BAKER, Fallon, MT | Pass | State |
| 2017-12-19 | WILLISTON BASIN - FORT PECK STATION | NASHUA, Valley, MT | Pass | State |
| 2017-12-19 | WILLISTON BASIN - FORT PECK STATION | NASHUA, Valley, MT | Pass | State |
| 2017-12-19 | WILLISTON BASIN - FORT PECK STATION | NASHUA, Valley, MT | Pass | State |
| 2017-12-19 | WILLISTON BASIN - SACO | SACO, Phillips, MT | Pass | State |
| 2017-12-19 | WILLISTON BASIN - SACO | SACO, Phillips, MT | Pass | State |
| 2017-12-19 | WILLISTON BASIN - SACO | SACO, Phillips, MT | Pass | State |
| 2017-12-19 | WILLISTON BASIN - SACO | SACO, Phillips, MT | Pass | State |
| 2017-12-12 | COLSTRIP STEAM ELECTRIC STATION | COLSTRIP, Rosebud, MT | Pass | State |
| 2017-12-12 | COLSTRIP STEAM ELECTRIC STATION | COLSTRIP, Rosebud, MT | Pass | State |
| 2017-12-12 | COLSTRIP STEAM ELECTRIC STATION | COLSTRIP, Rosebud, MT | Pass | State |
| 2017-12-12 | COLSTRIP STEAM ELECTRIC STATION | COLSTRIP, Rosebud, MT | Pass | State |
| 2017-12-10 | BILLINGS REFINERY | BILLINGS, Yellowstone, MT | Pass | State |
| 2017-11-29 | BLAINE COUNTY #1 | CHINOOK, Blaine, MT | Pass | State |
| 2017-11-29 | BLAINE COUNTY #1 | CHINOOK, Blaine, MT | Pass | State |
| 2017-11-29 | BLAINE COUNTY #1 | CHINOOK, Blaine, MT | Pass | State |
| 2017-11-29 | BLAINE COUNTY #1 | CHINOOK, Blaine, MT | Pass | State |
| 2017-11-29 | BLAINE COUNTY #1 | CHINOOK, Blaine, MT | Pass | State |
| 2017-11-29 | BLAINE COUNTY #1 | CHINOOK, Blaine, MT | Pass | State |
| 2017-11-27 | DRY CREEK FIELD STATION 056 | RED LODGE, Carbon, MT | Pass | State |
| 2017-11-27 | DRY CREEK FIELD STATION 056 | RED LODGE, Carbon, MT | Pass | State |
| 2017-11-27 | DRY CREEK FIELD STATION 056 | RED LODGE, Carbon, MT | Pass | State |
| 2017-11-27 | IFG-KAMP, LLC | SAINT REGIS, Mineral, MT | Pass | State |
| 2017-11-27 | IFG-KAMP, LLC | SAINT REGIS, Mineral, MT | Pass | State |
| 2017-11-16 | WEYERHAEUSER-EVERGREEN — high-priority violation on file | KALISPELL, Flathead, MT | Pass | State |
| 2017-11-16 | WEYERHAEUSER-CFALLS — high-priority violation on file | COLUMBIA FALLS, Flathead, MT | Pass | State |
| 2017-11-16 | WEYERHAEUSER-CFALLS — high-priority violation on file | COLUMBIA FALLS, Flathead, MT | Pass | State |
| 2017-11-16 | WEYERHAEUSER-CFALLS — high-priority violation on file | COLUMBIA FALLS, Flathead, MT | Pass | State |
| 2017-11-14 | N. BORDER PIPELINE CO STA. 3 | CULBERTSON, Roosevelt, MT | Pass | State |
| 2017-11-14 | BASIN ELECTRIC POWER COOPERATIVE | BAINVILLE, Roosevelt, MT | Pass | State |
| 2017-11-13 | WILLISTON BASIN - HATHAWAY STATION | HATHAWAY, Rosebud, MT | Pass | State |
| 2017-11-13 | WILLISTON BASIN - CABIN CREEK | BAKER, Fallon, MT | Pass | State |
| 2017-11-13 | WILLISTON BASIN - BAKER COMPRESSOR STA | BAKER, Fallon, MT | Pass | State |
| 2017-11-13 | ASH GROVE CEMENT | CLANCY, Jefferson, MT | Pass | State |
| 2017-11-13 | ASH GROVE CEMENT | CLANCY, Jefferson, MT | Pass | State |
| 2017-11-13 | WILLISTON BASIN - VIDA STATION | VIDA, McCone, MT | Pass | State |
| 2017-11-13 | WILLISTON BASIN - VIDA STATION | VIDA, McCone, MT | Pass | State |
| 2017-11-13 | YELLOWSTONE POWER PLANT — high-priority violation on file | BILLINGS, Yellowstone, MT | Pass | State |
| 2017-11-10 | CHS INC REFINERY LAUREL | LAUREL, Yellowstone, MT | Pass | State |
| 2017-11-06 | ASH GROVE CEMENT | CLANCY, Jefferson, MT | Pass | State |
| 2017-10-30 | BAKKEN GATHERING PLANT | SIDNEY, Richland, MT | Pass | State |
| 2017-10-23 | YELLOWSTONE POWER PLANT — high-priority violation on file | BILLINGS, Yellowstone, MT | Pass | State |
| 2017-10-23 | YELLOWSTONE POWER PLANT — high-priority violation on file | BILLINGS, Yellowstone, MT | Pass | State |
| 2017-10-23 | YELLOWSTONE POWER PLANT — high-priority violation on file | BILLINGS, Yellowstone, MT | Pass | State |
| 2017-10-10 | COLSTRIP STEAM ELECTRIC STATION | COLSTRIP, Rosebud, MT | Pass | State |
| 2017-10-10 | COLSTRIP STEAM ELECTRIC STATION | COLSTRIP, Rosebud, MT | Fail | State |
| 2017-10-10 | COLSTRIP STEAM ELECTRIC STATION | COLSTRIP, Rosebud, MT | Pass | State |
| 2017-10-10 | COLSTRIP STEAM ELECTRIC STATION | COLSTRIP, Rosebud, MT | Pass | State |
| 2017-09-29 | BLAINE COUNTY #1 | CHINOOK, Blaine, MT | Pass | State |
| 2017-09-29 | BLAINE COUNTY #1 | CHINOOK, Blaine, MT | Pass | State |
| 2017-09-29 | BLAINE COUNTY #1 | CHINOOK, Blaine, MT | Pass | State |
| 2017-09-26 | PAR MONTANA BILLINGS REFINERY | BILLINGS, Yellowstone, MT | Pass | State |
| 2017-09-25 | PAR MONTANA BILLINGS REFINERY | BILLINGS, Yellowstone, MT | Pass | State |
| 2017-09-22 | NORTHWESTERN ENERGY MAINLINE #1 | CUT BANK, Glacier, MT | Pass | State |
| 2017-09-22 | NORTHWESTERN ENERGY MAINLINE #1 | CUT BANK, Glacier, MT | Pass | State |
| 2017-09-22 | NORTHWESTERN ENERGY MAINLINE #1 | CUT BANK, Glacier, MT | Pass | State |
| 2017-09-22 | NORTHWESTERN ENERGY MAINLINE #1 | CUT BANK, Glacier, MT | Pass | State |
| 2017-09-22 | NORTHWESTERN ENERGY MAINLINE #1 | CUT BANK, Glacier, MT | Pass | State |
| 2017-09-22 | NORTHWESTERN ENERGY MAINLINE #1 | CUT BANK, Glacier, MT | Pass | State |
| 2017-09-22 | NORTHWESTERN ENERGY MAINLINE #1 | CUT BANK, Glacier, MT | Pass | State |
| 2017-09-22 | NORTHWESTERN ENERGY MAINLINE #1 | CUT BANK, Glacier, MT | Pass | State |
| 2017-09-22 | TELSTAD FIELD STATION 033 | SHELBY, Toole, MT | Pass | State |
| 2017-09-22 | TELSTAD FIELD STATION 033 | SHELBY, Toole, MT | Pass | State |
| 2017-09-18 | CHS INC. | GLENDIVE, Dawson, MT | Pass | State |
| 2017-09-18 | WEYERHAEUSER-CFALLS — high-priority violation on file | COLUMBIA FALLS, Flathead, MT | Pass | State |
| 2017-09-18 | WEYERHAEUSER-CFALLS — high-priority violation on file | COLUMBIA FALLS, Flathead, MT | Pass | State |
| 2017-09-18 | MDU - LEWIS & CLARK STATION | SIDNEY, Richland, MT | Pass | State |
| 2017-09-13 | COLSTRIP STEAM ELECTRIC STATION | COLSTRIP, Rosebud, MT | Pass | State |
| 2017-09-13 | COLSTRIP STEAM ELECTRIC STATION | COLSTRIP, Rosebud, MT | Pass | State |
| 2017-09-13 | COLSTRIP STEAM ELECTRIC STATION | COLSTRIP, Rosebud, MT | Pass | State |
| 2017-09-13 | COLSTRIP STEAM ELECTRIC STATION | COLSTRIP, Rosebud, 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 |
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Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.