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 |
|---|---|---|---|---|
| 2017-05-10 | YELLOWSTONE POWER PLANT — high-priority violation on file | BILLINGS, Yellowstone, MT | Pass | State |
| 2017-05-10 | YELLOWSTONE POWER PLANT — high-priority violation on file | BILLINGS, Yellowstone, MT | Pass | State |
| 2017-05-10 | YELLOWSTONE POWER PLANT — high-priority violation on file | BILLINGS, Yellowstone, MT | Pass | State |
| 2017-05-10 | YELLOWSTONE POWER PLANT — high-priority violation on file | BILLINGS, Yellowstone, MT | Pass | State |
| 2017-05-05 | CALUMET MONTANA REFINING — high-priority violation on file | GREAT FALLS, Cascade, MT | Pass | State |
| 2017-05-05 | CALUMET MONTANA REFINING — high-priority violation on file | GREAT FALLS, Cascade, MT | Pass | State |
| 2017-05-04 | CALUMET MONTANA REFINING — high-priority violation on file | GREAT FALLS, Cascade, MT | Pass | State |
| 2017-05-04 | PAR MONTANA BILLINGS REFINERY | BILLINGS, Yellowstone, MT | Pass | State |
| 2017-05-04 | PAR MONTANA BILLINGS REFINERY | BILLINGS, Yellowstone, MT | Pass | State |
| 2017-05-04 | PAR MONTANA BILLINGS REFINERY | BILLINGS, Yellowstone, MT | Pass | State |
| 2017-05-01 | CALUMET MONTANA REFINING — high-priority violation on file | GREAT FALLS, Cascade, MT | Pass | State |
| 2017-04-28 | CALUMET MONTANA REFINING — high-priority violation on file | GREAT FALLS, Cascade, MT | Pass | State |
| 2017-04-27 | YELLOWSTONE POWER PLANT — high-priority violation on file | BILLINGS, Yellowstone, MT | Pass | State |
| 2017-04-19 | CALUMET MONTANA REFINING — high-priority violation on file | GREAT FALLS, Cascade, MT | Pass | State |
| 2017-04-19 | CALUMET MONTANA REFINING — high-priority violation on file | GREAT FALLS, Cascade, MT | Pass | State |
| 2017-04-19 | CALUMET MONTANA REFINING — high-priority violation on file | GREAT FALLS, Cascade, MT | Pass | State |
| 2017-04-18 | COLSTRIP ENERGY LTD PARTNERSHIP | COLSTRIP, Rosebud, MT | Pass | State |
| 2017-04-18 | COLSTRIP ENERGY LTD PARTNERSHIP | COLSTRIP, Rosebud, MT | Pass | State |
| 2017-04-18 | YELLOWSTONE POWER PLANT — high-priority violation on file | BILLINGS, Yellowstone, MT | Pass | State |
| 2017-04-18 | YELLOWSTONE POWER PLANT — high-priority violation on file | BILLINGS, Yellowstone, MT | Pass | State |
| 2017-04-17 | BLAINE COUNTY #1 | CHINOOK, Blaine, MT | Pass | State |
| 2017-04-17 | BLAINE COUNTY #1 | CHINOOK, Blaine, MT | Pass | State |
| 2017-04-17 | BLAINE COUNTY #1 | CHINOOK, Blaine, MT | Pass | State |
| 2017-04-17 | COLSTRIP ENERGY LTD PARTNERSHIP | COLSTRIP, Rosebud, MT | Pass | State |
| 2017-04-17 | YELLOWSTONE POWER PLANT — high-priority violation on file | BILLINGS, Yellowstone, MT | Pass | State |
| 2017-04-13 | N. BORDER PIPELINE CO STA. 3 | CULBERTSON, Roosevelt, MT | Pass | State |
| 2017-04-06 | ROCKY MOUNTAIN POWER | HARDIN, Big Horn, MT | Pass | State |
| 2017-03-29 | MDU - LEWIS & CLARK STATION | SIDNEY, Richland, MT | Pass | State |
| 2017-03-29 | MDU - LEWIS & CLARK STATION | SIDNEY, Richland, MT | Pass | State |
| 2017-03-24 | CALUMET MONTANA REFINING — high-priority violation on file | GREAT FALLS, Cascade, MT | Pass | State |
| 2017-03-24 | CALUMET MONTANA REFINING — high-priority violation on file | GREAT FALLS, Cascade, MT | Pass | State |
| 2017-03-24 | CALUMET MONTANA REFINING — high-priority violation on file | GREAT FALLS, Cascade, MT | Pass | State |
| 2017-03-24 | COBB STORAGE FIELD STATION 017 | CUT BANK, Glacier, MT | Pass | State |
| 2017-03-24 | COBB STORAGE FIELD STATION 017 | CUT BANK, Glacier, MT | Pass | State |
| 2017-03-24 | COBB STORAGE FIELD STATION 017 | CUT BANK, Glacier, MT | Pass | State |
| 2017-03-24 | COBB STORAGE FIELD STATION 017 | CUT BANK, Glacier, MT | Pass | State |
| 2017-03-24 | COBB STORAGE FIELD STATION 017 | CUT BANK, Glacier, MT | Pass | State |
| 2017-03-24 | COBB STORAGE FIELD STATION 017 | CUT BANK, Glacier, MT | Pass | State |
| 2017-03-24 | COBB STORAGE FIELD STATION 017 | CUT BANK, Glacier, MT | Pass | State |
| 2017-03-24 | COBB STORAGE FIELD STATION 017 | CUT BANK, Glacier, MT | Pass | State |
| 2017-03-24 | COBB STORAGE FIELD STATION 017 | CUT BANK, Glacier, MT | Pass | State |
| 2017-03-24 | COBB STORAGE FIELD STATION 017 | CUT BANK, Glacier, MT | Pass | State |
| 2017-03-23 | MSU - CENTRAL HEATING PLANT | BOZEMAN, Gallatin, MT | Pass | State |
| 2017-03-17 | BILLINGS REFINERY | BILLINGS, Yellowstone, MT | Pass | State |
| 2017-03-17 | BILLINGS REFINERY | BILLINGS, Yellowstone, MT | Pass | State |
| 2017-03-16 | BILLINGS REFINERY | BILLINGS, Yellowstone, MT | Pass | State |
| 2017-03-16 | BILLINGS REFINERY | BILLINGS, Yellowstone, MT | Pass | State |
| 2017-03-14 | PRAIRIE DELL CASCADE GAS PLANT | SHELBY, Toole, MT | Pass | State |
| 2017-03-09 | COLSTRIP STEAM ELECTRIC STATION | COLSTRIP, Rosebud, MT | Pass | State |
| 2017-03-09 | COLSTRIP STEAM ELECTRIC STATION | COLSTRIP, Rosebud, MT | Pass | State |
| 2017-03-09 | COLSTRIP STEAM ELECTRIC STATION | COLSTRIP, Rosebud, MT | Pass | State |
| 2017-03-09 | COLSTRIP STEAM ELECTRIC STATION | COLSTRIP, Rosebud, MT | Pass | State |
| 2017-03-09 | COLSTRIP STEAM ELECTRIC STATION | COLSTRIP, Rosebud, MT | Pass | State |
| 2017-03-09 | COLSTRIP STEAM ELECTRIC STATION | COLSTRIP, Rosebud, MT | Pass | State |
| 2017-03-09 | COLSTRIP STEAM ELECTRIC STATION | COLSTRIP, Rosebud, MT | Pass | State |
| 2017-03-09 | COLSTRIP STEAM ELECTRIC STATION | COLSTRIP, Rosebud, MT | Pass | State |
| 2017-03-08 | COLSTRIP STEAM ELECTRIC STATION | COLSTRIP, Rosebud, MT | Pass | State |
| 2017-03-08 | COLSTRIP STEAM ELECTRIC STATION | COLSTRIP, Rosebud, MT | Pass | State |
| 2017-03-08 | COLSTRIP STEAM ELECTRIC STATION | COLSTRIP, Rosebud, MT | Pass | State |
| 2017-03-08 | COLSTRIP STEAM ELECTRIC STATION | COLSTRIP, Rosebud, MT | Pass | State |
| 2017-03-01 | BASIN CREEK POWER SERVICES | BUTTE, Silver Bow, MT | Pass | State |
| 2017-03-01 | BASIN CREEK POWER SERVICES | BUTTE, Silver Bow, MT | Pass | State |
| 2017-03-01 | BASIN CREEK POWER SERVICES | BUTTE, Silver Bow, MT | Pass | State |
| 2017-03-01 | BASIN CREEK POWER SERVICES | BUTTE, Silver Bow, MT | Pass | State |
| 2017-03-01 | BASIN CREEK POWER SERVICES | BUTTE, Silver Bow, MT | Pass | State |
| 2017-03-01 | BASIN CREEK POWER SERVICES | BUTTE, Silver Bow, MT | Pass | State |
| 2017-03-01 | BASIN CREEK POWER SERVICES | BUTTE, Silver Bow, MT | Pass | State |
| 2017-03-01 | BASIN CREEK POWER SERVICES | BUTTE, Silver Bow, MT | Pass | State |
| 2017-03-01 | BASIN CREEK POWER SERVICES | BUTTE, Silver Bow, MT | Pass | State |
| 2017-02-24 | NORTHWESTERN ENERGY MAINLINE #1 | CUT BANK, Glacier, MT | Pass | State |
| 2017-02-24 | NORTHWESTERN ENERGY MAINLINE #1 | CUT BANK, Glacier, MT | Pass | State |
| 2017-02-24 | NORTHWESTERN ENERGY MAINLINE #1 | CUT BANK, Glacier, MT | Pass | State |
| 2017-02-24 | NORTHWESTERN ENERGY MAINLINE #1 | CUT BANK, Glacier, MT | Pass | State |
| 2017-02-24 | NORTHWESTERN ENERGY MAINLINE #1 | CUT BANK, Glacier, MT | Pass | State |
| 2017-02-24 | NORTHWESTERN ENERGY MAINLINE #1 | CUT BANK, Glacier, MT | Pass | State |
| 2017-02-24 | NORTHWESTERN ENERGY MAINLINE #1 | CUT BANK, Glacier, MT | Pass | State |
| 2017-02-24 | NORTHWESTERN ENERGY MAINLINE #1 | CUT BANK, Glacier, MT | Pass | State |
| 2017-02-22 | YELLOWSTONE POWER PLANT — high-priority violation on file | BILLINGS, Yellowstone, MT | Fail | State |
| 2017-02-15 | CALUMET MONTANA REFINING — high-priority violation on file | GREAT FALLS, Cascade, MT | Pass | State |
| 2017-02-12 | BILLINGS REFINERY | BILLINGS, Yellowstone, MT | Pass | State |
| 2017-02-09 | DRY CREEK FIELD STATION 056 | RED LODGE, Carbon, MT | Pass | State |
| 2017-02-08 | WESTERN SUGAR COOPERATIVE — high-priority violation on file | BILLINGS, Yellowstone, MT | Pass | State |
| 2017-02-08 | WESTERN SUGAR COOPERATIVE — high-priority violation on file | BILLINGS, Yellowstone, MT | Pass | State |
| 2017-02-03 | MONTANA SULPHUR & CHEMICAL | BILLINGS, Yellowstone, MT | Pass | State |
| 2017-02-01 | ALLIED WASTE SYSTEMS | MISSOULA, Missoula, MT | Pass | State |
| 2017-01-31 | CALUMET MONTANA REFINING — high-priority violation on file | GREAT FALLS, Cascade, MT | Pass | State |
| 2017-01-31 | BILLINGS REFINERY | BILLINGS, Yellowstone, MT | Pass | State |
| 2017-01-31 | BILLINGS REFINERY | BILLINGS, Yellowstone, MT | Pass | State |
| 2017-01-31 | BILLINGS REFINERY | BILLINGS, Yellowstone, MT | Pass | State |
| 2017-01-31 | BILLINGS REFINERY | BILLINGS, Yellowstone, MT | Pass | State |
| 2017-01-30 | AUGUSTA MAIN LINE #3 (STA 051) | AUGUSTA, Lewis and Clark, MT | Pass | State |
| 2017-01-30 | AUGUSTA MAIN LINE #3 (STA 051) | AUGUSTA, Lewis and Clark, MT | Pass | State |
| 2017-01-30 | AUGUSTA MAIN LINE #3 (STA 051) | AUGUSTA, Lewis and Clark, MT | Pass | State |
| 2017-01-30 | AUGUSTA MAIN LINE #3 (STA 051) | AUGUSTA, Lewis and Clark, MT | Pass | State |
| 2017-01-30 | AUGUSTA MAIN LINE #3 (STA 051) | AUGUSTA, Lewis and Clark, MT | Pass | State |
| 2017-01-30 | AUGUSTA MAIN LINE #3 (STA 051) | AUGUSTA, Lewis and Clark, MT | Pass | State |
| 2017-01-30 | MDU - LEWIS & CLARK STATION | SIDNEY, Richland, MT | Pass | State |
| 2017-01-30 | MDU - LEWIS & CLARK STATION | SIDNEY, Richland, MT | Pass | State |
| 2017-01-26 | WEYERHAEUSER-EVERGREEN — high-priority violation on file | KALISPELL, Flathead, MT | Pass | State |
| 2017-01-26 | WEYERHAEUSER-EVERGREEN — high-priority violation on file | KALISPELL, Flathead, MT | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.