EPA Air · stack tests by state, industry and year
Pipeline transportation (NAICS 4862): stack tests in Minnesota, 2026
- 4Stack 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 2026 at a Minnesota source whose primary industry code is NAICS 4862. A facility filing more than one industry code is counted under the first one on its record.
Pipeline transportation (NAICS 4862) in Minnesota, other years
Other industries in Minnesota, 2026
- Utilities (NAICS 2211) 22
- Chemical manufacturing (NAICS 3251) 8
- Petroleum and coal products manufacturing (NAICS 3241) 8
- Food manufacturing (NAICS 3112) 6
- Food manufacturing (NAICS 3113) 5
- Mining and quarrying (NAICS 2123) 4
- Food manufacturing (NAICS 3116) 3
Air-emissions stack tests recorded in Minnesota, 2026
| Date | Facility | Where | Kind | Agency |
|---|---|---|---|---|
| 2026-04-14 | NORTHERN NATURAL GAS CO - NORTH BRANCH | HARRIS, Chisago, MN | Pass | State |
| 2026-02-26 | NORTHERN NATURAL GAS CO - HINCKLEY | HINCKLEY, Pine, MN | Pass | State |
| 2026-02-19 | NORTHERN NATURAL GAS - FARMINGTON | FARMINGTON, Dakota, MN | Pass | State |
| 2026-02-18 | NORTHERN NATURAL GAS CO - CARVER | CARVER, Carver, MN | 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.