EPA Air · stack tests by state, industry and year
Utilities (NAICS 2211): stack tests in South Dakota, 2026
- 6Stack 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 2211. A facility filing more than one industry code is counted under the first one on its record.
Utilities (NAICS 2211) in South Dakota, other years
Other industries in South Dakota, 2026
- Food manufacturing (NAICS 3112) 12
- Chemical manufacturing (NAICS 3251) 5
- 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 |
|---|---|---|---|---|
| 2026-06-16 | OTTER TAIL POWER COMPANY | BIG STONE CITY, Grant, SD | Pass | State |
| 2026-06-03 | OTTER TAIL POWER COMPANY - ASTORIA STATION | ASTORIA, Deuel, SD | Pass | State |
| 2026-05-19 | NORTHERN STATES POWER COMPANY | SIOUX FALLS, Minnehaha, SD | Pass | State |
| 2026-05-06 | BLACK HILLS POWER, INC. (LANGE) | RAPID CITY, Pennington, SD | Pass | State |
| 2026-04-28 | OTTER TAIL POWER COMPANY - ASTORIA STATION | ASTORIA, Deuel, SD | Pass | State |
| 2026-03-31 | BASIN ELECTRIC POWER COOPERATIVE GROTON GENERATING | GROTON, 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.