EPA Air · stack tests by state, industry and year
Chemical manufacturing (NAICS 3251): stack tests in South Dakota, 2026
- 5Stack 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 South Dakota source whose primary industry code is NAICS 3251. A facility filing more than one industry code is counted under the first one on its record.
Chemical manufacturing (NAICS 3251) in South Dakota, other years
Other industries in South Dakota, 2026
- Food manufacturing (NAICS 3112) 12
- Utilities (NAICS 2211) 6
- Nonmetallic mineral product manufacturing (NAICS 3274) 5
- Nonmetallic mineral product manufacturing (NAICS 3273) 3
Air-emissions stack tests recorded in South Dakota, 2026
| Date | Facility | Where | Kind | Agency |
|---|---|---|---|---|
| 2026-06-24 | POET BIOREFINING - MITCHELL LLC | MITCHELL, Davison, SD | Pass | State |
| 2026-06-23 | POET BIOREFINING - MITCHELL LLC | MITCHELL, Davison, SD | Pass | State |
| 2026-02-11 | NUGEN ENERGY LLC — high-priority violation on file | MARION, Turner, SD | Pass | State |
| 2026-01-27 | REDFIELD ENERGY LLC — high-priority violation on file | REDFIELD, Beadle, SD | Pass | State |
| 2026-01-07 | HUB CITY ENERGY, LLC — high-priority violation on file | ABERDEEN, Brown, SD | 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.