EPA Air · stack tests by state, industry and year
NAICS 9999: stack tests in South Dakota, 2025
- 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 2025 at a South Dakota source whose primary industry code is NAICS 9999. A facility filing more than one industry code is counted under the first one on its record.
NAICS 9999 in South Dakota, other years
Other industries in South Dakota, 2025
- Utilities (NAICS 2211) 12
- Chemical manufacturing (NAICS 3251) 12
- Nonmetallic mineral product manufacturing (NAICS 3274) 4
- Nonmetallic mineral product manufacturing (NAICS 3273) 4
- Food manufacturing (NAICS 3112) 3
Air-emissions stack tests recorded in South Dakota, 2025
| Date | Facility | Where | Kind | Agency |
|---|---|---|---|---|
| 2025-12-02 | VALERO RENEWABLE FUELS COMPANY LLC — high-priority violation on file | AURORA, Brookings, SD | Pass | State |
| 2025-10-22 | NORTHWESTERN ENERGY PUBLIC SERVICE CORPORATION - ABERDEEN | ABERDEEN, Brown, SD | Pass | State |
| 2025-08-19 | VALERO RENEWABLE FUELS COMPANY LLC — high-priority violation on file | AURORA, Brookings, SD | Pass | State |
| 2025-02-05 | BLACK HILLS POWER, INC. - BEN FRENCH | RAPID CITY, Pennington, 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.