EPA Air · violations by state and year
High-priority air violations in South Dakota, 2025
- 44Violations
A high-priority violation is the most serious class of Clean Air Act non-compliance an agency records against a source; a federally reportable violation is the next step down in severity. Every violation below was recorded against a source in South Dakota during 2025; one facility can appear more than once, because this is a record of what happened rather than a list of places.
Counties in South Dakota, 2025
- Minnehaha County 6
- Brookings County 6
- Turner County 4
- Harding County 4
- Pennington County 4
- Brown County 4
- Beadle County 3
South Dakota, other years
High-priority air violations recorded in South Dakota, 2025
| Date | Facility | Where | Kind | Agency |
|---|---|---|---|---|
| 2025-11-20 | REDFIELD ENERGY LLC — high-priority violation on file | REDFIELD, Beadle, SD | Earliest FRV determination | State |
| 2025-10-23 | HURON ENERGY LLC, DBA GLACIAL LAKES ENERGY LLC — high-priority violation on file | HURON, Beadle, SD | Earliest FRV determination | State |
| 2025-09-23 | SIMON CONTRACTORS OF SD INC. | RAPID CITY, Pennington, SD | Earliest FRV determination | State |
| 2025-09-23 | MAGELLAN PIPELINE COMPANY, LP - RAPID CITY TERMINAL | RAPID CITY, Pennington, SD | Earliest FRV determination | State |
| 2025-09-22 | POET BIOPROCESSING - CHANCELLOR, LLC — high-priority violation on file | CHANCELLOR, Turner, SD | Earliest FRV determination | State |
| 2025-09-11 | NUGEN ENERGY LLC — high-priority violation on file | MARION, Turner, SD | Earliest FRV determination | State |
| 2025-09-11 | SANFORD USD MEDICAL CENTER | SIOUX FALLS, Minnehaha, SD | Earliest FRV determination | State |
| 2025-09-11 | SHOWPLACE WOOD PRODUCTS INC | HARRISBURG, Lincoln, SD | Earliest FRV determination | State |
| 2025-09-10 | BASIN ELECTRIC - DEER CREEK STATION | ELKTON, Brookings, SD | Earliest FRV determination | State |
| 2025-09-10 | T&R ELECTRIC SUPPLY COMPANY | COLMAN, Moody, SD | Earliest FRV determination | State |
| 2025-09-09 | BASIN ELECTRIC POWER COOPERATIVE GROTON GENERATING | GROTON, Brown, SD | Earliest FRV determination | State |
| 2025-09-09 | AGTEGRA COOPERATIVE - CRAVEN | IPSWICH, Edmunds, SD | Earliest FRV determination | State |
| 2025-09-02 | SIOUX FALLS WATER RECLAMATION | SIOUX FALLS, Minnehaha, SD | Earliest FRV determination | State |
| 2025-08-29 | KNTC LLC DBA SIOUX MARBLE INC. | BRANDON, Minnehaha, SD | Earliest FRV determination | State |
| 2025-08-28 | SMITHFIELD PACKAGED MEATS CORP. | SIOUX FALLS, Minnehaha, SD | Earliest FRV determination | State |
| 2025-08-21 | PRAIRIE AQUATECH MANUFACTURING, LLC DBA HOUDEK MANUFACTURING | VOLGA, Brookings, SD | Earliest FRV determination | State |
| 2025-08-21 | SOUTH DAKOTA STATE UNIVERSITY | BROOKINGS, Brookings, SD | Earliest FRV determination | State |
| 2025-07-25 | CONTINENTAL RESOURCES - SOUTH BUFFALO (CTB#11) | NEAR BUFFALO, Harding, SD | Earliest FRV determination | State |
| 2025-07-25 | CONTINENTAL RESOURCES - WEST BUFFALO (CTB25) | NEAR BUFFALO, Harding, SD | Earliest FRV determination | State |
| 2025-07-25 | CONTINENTAL RESOURCES - SOUTH BUFFALO (CTB#3) | NEAR BUFFALO, Harding, SD | Earliest FRV determination | State |
| 2025-07-25 | CONTINENTAL RESOURCES - BUFFALO (CTB#1) | NEAR BUFFALO, Harding, SD | Earliest FRV determination | State |
| 2025-07-10 | UNIVERSITY OF SOUTH DAKOTA — high-priority violation on file | VERMILLION, Clay, SD | Earliest FRV determination | State |
| 2025-06-26 | POET RESEARCH CENTER - SCOTLAND — high-priority violation on file | SCOTLAND, Bon Homme, SD | HPV day-zero determination | State |
| 2025-06-25 | NUSTAR PIPELINE OPERATING PARTNERSHIP LP - YANKTON | YANKTON, Yankton, SD | Earliest FRV determination | State |
| 2025-06-20 | JACK LINK'S BEEF JERKY | ALPENA, Jerauld, SD | Earliest FRV determination | State |
| 2025-06-18 | 3M COMPANY - ABERDEEN — high-priority violation on file | ABERDEEN, Brown, SD | Earliest FRV determination | State |
| 2025-06-17 | ABERDEEN ENERGY, LLC — high-priority violation on file | MINA, Edmunds, SD | Earliest FRV determination | State |
| 2025-06-17 | HUB CITY ENERGY, LLC — high-priority violation on file | ABERDEEN, Brown, SD | Earliest FRV determination | State |
| 2025-06-03 | NOVITA AURORA, LLC | AURORA, Brookings, SD | Earliest FRV determination | State |
| 2025-06-02 | NUGEN ENERGY LLC — high-priority violation on file | MARION, Turner, SD | Earliest FRV determination | State |
| 2025-06-02 | BLACK HILLS POWER, INC. (LANGE) | RAPID CITY, Pennington, SD | Earliest FRV determination | State |
| 2025-06-02 | GCC DACOTAH — high-priority violation on file | RAPID CITY, Pennington, SD | Earliest FRV determination | State |
| 2025-06-02 | MASTERBRAND CABINETS LLC | SIOUX FALLS, Minnehaha, SD | Earliest FRV determination | State |
| 2025-06-02 | MIDWEST RAILCAR REPAIR INC | CORSON, Minnehaha, SD | Earliest FRV determination | State |
| 2025-06-02 | NOVITA AURORA, LLC | AURORA, Brookings, SD | Earliest FRV determination | State |
| 2025-06-02 | POET BIOPROCESSING - CHANCELLOR, LLC — high-priority violation on file | CHANCELLOR, Turner, SD | Earliest FRV determination | State |
| 2025-06-02 | POET BIOREFINING - MITCHELL LLC | MITCHELL, Davison, SD | Earliest FRV determination | State |
| 2025-06-02 | POET RESEARCH CENTER - SCOTLAND — high-priority violation on file | SCOTLAND, Bon Homme, SD | Earliest FRV determination | State |
| 2025-06-02 | REDFIELD ENERGY LLC — high-priority violation on file | REDFIELD, Beadle, SD | Earliest FRV determination | State |
| 2025-06-02 | RING NECK ENERGY & FEED LLC — high-priority violation on file | ONIDA, Sully, SD | Earliest FRV determination | State |
| 2025-06-02 | UNIVERSITY OF SOUTH DAKOTA — high-priority violation on file | VERMILLION, Clay, SD | Earliest FRV determination | State |
| 2025-06-02 | VALERO RENEWABLE FUELS COMPANY LLC — high-priority violation on file | AURORA, Brookings, SD | Earliest FRV determination | State |
| 2025-04-08 | POET BIOREFINING - MITCHELL LLC | MITCHELL, Davison, SD | Earliest FRV determination | State |
| 2025-03-11 | AG PROCESSING INC. | ABERDEEN, Brown, SD | Earliest FRV determination | State |
Dates as filed by the agency that recorded the violation. Figures from EPA’s ICIS-AIR download.