EPA Air · stack tests by state, industry and year
Oil and gas extraction (NAICS 2111): stack tests in Montana, 2021
- 20Stack tests
A stack test measures what a source actually emits, at the stack, against the limit in its permit. Each row is one stack test recorded during 2021 at a Montana source whose primary industry code is NAICS 2111. A facility filing more than one industry code is counted under the first one on its record.
Oil and gas extraction (NAICS 2111) in Montana, other years
Other industries in Montana, 2021
- Petroleum and coal products manufacturing (NAICS 3241) 66
- Pipeline transportation (NAICS 4862) 46
- Utilities (NAICS 2211) 46
- Nonmetallic mineral product manufacturing (NAICS 3273) 14
- Food manufacturing (NAICS 3113) 5
- Wood product manufacturing (NAICS 3212) 4
- Wood product manufacturing (NAICS 3211) 4
- Merchant wholesalers, nondurable goods (NAICS 4247) 3
- Chemical manufacturing (NAICS 3251) 3
Air-emissions stack tests recorded in Montana, 2021
| Date | Facility | Where | Kind | Agency |
|---|---|---|---|---|
| 2021-11-16 | WILLISTON BASIN - SACO | SACO, Phillips, MT | Pass | State |
| 2021-11-16 | WILLISTON BASIN - SACO | SACO, Phillips, MT | Pass | State |
| 2021-11-16 | WILLISTON BASIN - SACO | SACO, Phillips, MT | Pass | State |
| 2021-11-16 | WILLISTON BASIN - SACO | SACO, Phillips, MT | Pass | State |
| 2021-10-26 | NORTHWESTERN ENERGY MAINLINE #1 | CUT BANK, Glacier, MT | Pass | State |
| 2021-10-26 | NORTHWESTERN ENERGY MAINLINE #1 | CUT BANK, Glacier, MT | Pass | State |
| 2021-10-26 | NORTHWESTERN ENERGY MAINLINE #1 | CUT BANK, Glacier, MT | Pass | State |
| 2021-10-26 | NORTHWESTERN ENERGY MAINLINE #1 | CUT BANK, Glacier, MT | Pass | State |
| 2021-10-26 | NORTHWESTERN ENERGY MAINLINE #1 | CUT BANK, Glacier, MT | Pass | State |
| 2021-10-26 | NORTHWESTERN ENERGY MAINLINE #1 | CUT BANK, Glacier, MT | Pass | State |
| 2021-05-06 | WILLISTON BASIN - SACO | SACO, Phillips, MT | Pass | State |
| 2021-05-06 | WILLISTON BASIN - SACO | SACO, Phillips, MT | Pass | State |
| 2021-05-06 | WILLISTON BASIN - SACO | SACO, Phillips, MT | Pass | State |
| 2021-05-06 | WILLISTON BASIN - SACO | SACO, Phillips, MT | Pass | State |
| 2021-02-22 | NORTHWESTERN ENERGY MAINLINE #1 | CUT BANK, Glacier, MT | Pass | State |
| 2021-02-22 | NORTHWESTERN ENERGY MAINLINE #1 | CUT BANK, Glacier, MT | Pass | State |
| 2021-02-22 | NORTHWESTERN ENERGY MAINLINE #1 | CUT BANK, Glacier, MT | Pass | State |
| 2021-02-22 | NORTHWESTERN ENERGY MAINLINE #1 | CUT BANK, Glacier, MT | Pass | State |
| 2021-02-22 | NORTHWESTERN ENERGY MAINLINE #1 | CUT BANK, Glacier, MT | Pass | State |
| 2021-02-22 | NORTHWESTERN ENERGY MAINLINE #1 | CUT BANK, Glacier, MT | Pass | State |
Primary NAICS code as filed on the facility record; dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.