EPA Air · stack tests by county and year
Air-emissions stack tests in Pennington County, South Dakota, 2025
- 13Stack tests
A stack test measures what a source actually emits, at the stack, against the limit in its permit. Each row below is one stack test recorded against a source in Pennington County, South Dakota during 2025. A facility can appear several times: this is the year’s record of what happened, not a list of places. The sources themselves are on the Pennington County facility page.
Pennington County, South Dakota, 2025
Air-emissions stack tests in Pennington County, other years
Air-emissions stack tests recorded in Pennington County, South Dakota, 2025
| Date | Facility | Kind | Agency |
|---|---|---|---|
| 2025-11-11 | PETE LIEN & SONS, INC. MAIN PLANT | Pass | State |
| 2025-10-21 | CITY OF RAPID CITY SOLID WASTE DIVISION | Pass | State |
| 2025-09-10 | BLACK HILLS POWER, INC. (LANGE) | Pass | State |
| 2025-06-19 | GCC DACOTAH — high-priority violation on file | Pass | State |
| 2025-06-17 | BLACK HILLS POWER, INC. (LANGE) | Pass | State |
| 2025-06-17 | GCC DACOTAH — high-priority violation on file | Pass | State |
| 2025-06-17 | GCC DACOTAH — high-priority violation on file | Pass | State |
| 2025-05-30 | GCC DACOTAH — high-priority violation on file | Pass | State |
| 2025-05-14 | PETE LIEN & SONS, INC. MAIN PLANT | Pass | State |
| 2025-05-13 | PETE LIEN & SONS, INC. MAIN PLANT | Pass | State |
| 2025-05-07 | MIDWEST MANUFACTURING DBA DAKOTA PANEL | Pass | State |
| 2025-04-08 | PETE LIEN & SONS, INC. MAIN PLANT | Pass | State |
| 2025-02-05 | BLACK HILLS POWER, INC. - BEN FRENCH | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.
What this page shows
This page covers Clean Air Act facilities in the EPA air register with stack tests in Pennington county, SD, for 2025. It lists 13 stack tests recorded in 2025.