EPA Air · inspections by state and year
Air-emissions inspections in South Dakota, 2026
- 75Inspections
A compliance evaluation is the on-site or file review a state, local or federal air agency records against a permitted source. Every inspection below was recorded against a source in South Dakota during 2026; 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, 2026
- Brown County 8
- Beadle County 7
- Davison County 6
- Brookings County 5
- Pennington County 5
- Codington County 4
- Clay County 4
- Grant County 4
- Hamlin County 3
- Clark County 3
South Dakota, other years
Air-emissions inspections recorded in South Dakota, 2026
| Date | Facility | Where | Kind | Agency |
|---|---|---|---|---|
| 2026-09-02 | MIDWEST MANUFACTURING DBA DAKOTA PANEL | RAPID CITY, Pennington, SD | FCE On-Site | State |
| 2026-09-01 | NORTHERN BORDER PIPELINE COMPANY - WETONKA COMPRESSOR | WETONKA, Edmunds, SD | FCE On-Site | State |
| 2026-08-26 | BASIN ELECTRIC POWER COOPERATIVE SPIRIT MOUND STAT | VERMILLION, Clay, SD | FCE On-Site | State |
| 2026-08-26 | POET BIOREFINING - HUDSON, LLC | HUDSON, Lincoln, SD | FCE On-Site | State |
| 2026-08-25 | BASIN ELECTRIC POWER COOPERATIVE GROTON GENERATING | GROTON, Brown, SD | FCE On-Site | State |
| 2026-08-25 | POET BIOREFINING - BIG STONE, LLC | BIG STONE CITY, Grant, SD | FCE On-Site | State |
| 2026-08-12 | VF RENEWABLE ENERGY, LLC | REVILLO, Grant, SD | FCE On-Site | State |
| 2026-08-12 | OTTER TAIL POWER COMPANY | BIG STONE CITY, Grant, SD | FCE On-Site | State |
| 2026-08-11 | NORTHWESTERN ENERGY PUBLIC SERVICE CORPORATION - CLARK | CLARK, Clark, SD | FCE On-Site | State |
| 2026-08-11 | WESTERN MINNESOTA MUNICIPAL POWER AGENCY - WATERTOWN | WATERTOWN, Codington, SD | FCE On-Site | State |
| 2026-08-11 | MAGELLAN PIPELINE COMPANY LP - WATERTOWN TERMINAL | WATERTOWN, Codington, SD | FCE On-Site | State |
| 2026-08-11 | GLACIAL LAKES ENERGY LLC | WATERTOWN, Codington, SD | FCE On-Site | State |
| 2026-07-30 | NUSTAR PIPELINE OPERATING PARTNERSHIP LP - ABERDEEN | ABERDEEN, Brown, SD | FCE On-Site | State |
| 2026-07-30 | SHOWPLACE WOOD PRODUCTS INC | HARRISBURG, Lincoln, SD | FCE On-Site | State |
| 2026-07-30 | SANFORD USD MEDICAL CENTER | SIOUX FALLS, Minnehaha, SD | FCE On-Site | State |
| 2026-07-29 | AG PROCESSING INC. | ABERDEEN, Brown, SD | FCE On-Site | State |
| 2026-07-29 | NORTHWESTERN ENERGY PUBLIC SERVICE CORPORATION - ABERDEEN | ABERDEEN, Brown, SD | FCE On-Site | State |
| 2026-07-29 | DAKOTA FOUNDRY, INC. | WEBSTER, Day, SD | FCE On-Site | State |
| 2026-07-15 | PACER CORPORATION - WHITE BEAR MICA PLANT | CUSTER, Custer, SD | FCE On-Site | State |
| 2026-07-15 | EVANS POST AND POLE | PRINGLE, Custer, SD | PCE On-Site | State |
| 2026-07-14 | DRUMGOON DIGESTER RENEWABLE ENERGY, LLC | LAKE NORDEN, Hamlin, SD | FCE On-Site | State |
| 2026-07-14 | TRI-CROSS RENEWABLE ENERGY, LLC | VIBORG, Turner, SD | FCE On-Site | State |
| 2026-07-10 | WILLOW LAKE COMPRESSOR STATION | WILLOW LAKE, Clark, SD | FCE On-Site | State |
| 2026-07-10 | WILLOW LAKE COMPRESSOR STATION | WILLOW LAKE, Clark, SD | FCE On-Site | State |
| 2026-07-07 | OTTER TAIL POWER COMPANY - ASTORIA STATION | ASTORIA, Deuel, SD | FCE On-Site | State |
| 2026-07-01 | BENCHMARK FOAM, INC. | WATERTOWN, Codington, SD | FCE On-Site | State |
| 2026-07-01 | VALLEY QUEEN CHEESE FACTORY INC. — high-priority violation on file | MILBANK, Grant, SD | FCE On-Site | State |
| 2026-06-30 | RED RIVER ENERGY, LLC — high-priority violation on file | ROSHOLT, Roberts, SD | FCE On-Site | State |
| 2026-06-30 | WOODLAND CABINETRY — high-priority violation on file | SISSETON, Roberts, SD | FCE On-Site | State |
| 2026-06-29 | AGROPUR INC., LAKE NORDEN FACILITY | LAKE NORDEN, Hamlin, SD | FCE On-Site | State |
| 2026-06-29 | AGROPUR INC., LAKE NORDEN FACILITY | LAKE NORDEN, Hamlin, SD | FCE On-Site | State |
| 2026-06-25 | NORTH CENTRAL FOAM — high-priority violation on file | HURON, Beadle, SD | FCE On-Site | State |
| 2026-06-22 | SOUTH DAKOTA STATE UNIVERSITY | BROOKINGS, Brookings, SD | FCE On-Site | State |
| 2026-06-22 | UNIVERSITY OF SOUTH DAKOTA — high-priority violation on file | VERMILLION, Clay, SD | FCE On-Site | State |
| 2026-06-16 | NORTHWESTERN ENERGY PUBLIC SERVICE CORPORATION - FAULKTON | FAULKTON, Faulk, SD | FCE On-Site | State |
| 2026-06-16 | NORTHWESTERN ENERGY PUBLIC SERVICE CORPORATION - FAULKTON | FAULKTON, Faulk, SD | FCE On-Site | State |
| 2026-06-10 | SOUTH DAKOTA SOYBEAN PROCESSORS - VOLGA | VOLGA, Brookings, SD | FCE On-Site | State |
| 2026-06-10 | JERRY'S ELECTRIC, INC | COLMAN, Moody, SD | FCE On-Site | State |
| 2026-06-09 | SOLVENTUM US LLC — high-priority violation on file | BROOKINGS, Brookings, SD | FCE On-Site | State |
| 2026-06-09 | VALERO RENEWABLE FUELS COMPANY LLC — high-priority violation on file | AURORA, Brookings, SD | FCE On-Site | State |
| 2026-06-09 | GCC DACOTAH | VOLGA, Brookings, SD | FCE On-Site | State |
| 2026-06-09 | MADISON GENERATION PLANT | MADISON, Lake, SD | FCE On-Site | State |
| 2026-06-04 | WAUSAU SUPPLY | RAPID CITY, Pennington, SD | FCE On-Site | State |
| 2026-06-03 | SIMON CONTRACTORS OF SD INC. | RAPID CITY, Pennington, SD | FCE On-Site | State |
| 2026-06-03 | GCC DACOTAH — high-priority violation on file | RAPID CITY, Pennington, SD | FCE On-Site | State |
| 2026-05-28 | TRUSSBILT, LLC — high-priority violation on file | HURON, Beadle, SD | FCE On-Site | State |
| 2026-05-28 | HMMI, LLC (FORMERLY HORIZONTAL MACHINING & MANUFACTURING, INC.) | HURON, Beadle, SD | FCE On-Site | State |
| 2026-05-28 | REDFIELD ENERGY LLC — high-priority violation on file | REDFIELD, Beadle, SD | FCE On-Site | State |
| 2026-05-19 | CCL LABEL | SIOUX FALLS, Minnehaha, SD | FCE On-Site | State |
| 2026-05-11 | CRETE READY FOAM LLC — high-priority violation on file | WESSINGTON SPRINGS, Jerauld, SD | FCE On-Site | State |
| 2026-05-07 | RING NECK ENERGY & FEED LLC — high-priority violation on file | ONIDA, Sully, SD | FCE On-Site | State |
| 2026-05-06 | UPLAND COLONY | ARTESIAN, Sanborn, SD | FCE On-Site | State |
| 2026-05-06 | HUB CITY ENERGY, LLC — high-priority violation on file | ABERDEEN, Brown, SD | FCE On-Site | State |
| 2026-05-06 | 3M COMPANY - ABERDEEN — high-priority violation on file | ABERDEEN, Brown, SD | FCE On-Site | State |
| 2026-05-06 | POET BIOREFINING - MITCHELL LLC | MITCHELL, Davison, SD | FCE On-Site | State |
| 2026-05-06 | MITCHELL CONCRETE INC. | MITCHELL, Davison, SD | FCE On-Site | State |
| 2026-05-06 | KNIFE RIVER | PARKSTON, CITY OF, Hutchinson, SD | FCE On-Site | State |
| 2026-05-06 | ABERDEEN ENERGY, LLC — high-priority violation on file | MINA, Edmunds, SD | FCE On-Site | State |
| 2026-05-06 | NUGEN ENERGY LLC — high-priority violation on file | MARION, Turner, SD | FCE On-Site | State |
| 2026-05-05 | AVERA ST LUKES HOSPITAL | ABERDEEN, Brown, SD | FCE On-Site | State |
| 2026-05-05 | POET BIOREFINING - GROTON | GROTON, Brown, SD | FCE On-Site | State |
| 2026-05-04 | FORT PIERRE POWER AND LIGHT PLANT — high-priority violation on file | FORT PIERRE, Stanley, SD | FCE On-Site | State |
| 2026-04-30 | NORTHWESTERN ENERGY PUBLIC SERVICE CORPORATION - HURON | HURON, Beadle, SD | FCE On-Site | State |
| 2026-04-30 | NUSTAR PIPELINE OPERATING PARTNERSHIP LP - WOLSEY | WOLSEY, Beadle, SD | FCE On-Site | State |
| 2026-04-30 | HURON ENERGY LLC, DBA GLACIAL LAKES ENERGY LLC — high-priority violation on file | HURON, Beadle, SD | FCE On-Site | State |
| 2026-04-16 | SOUTH DAKOTA SCHOOL OF MINES & TECHNOLOGY | RAPID CITY, Pennington, SD | FCE On-Site | State |
| 2026-04-14 | VERMEER CORPORATION | FREEMAN, Hutchinson, SD | FCE On-Site | State |
| 2026-04-08 | UNIVERSITY OF SOUTH DAKOTA — high-priority violation on file | VERMILLION, Clay, SD | FCE On-Site | State |
| 2026-04-08 | UNIVERSITY OF SOUTH DAKOTA — high-priority violation on file | VERMILLION, Clay, SD | FCE On-Site | State |
| 2026-03-11 | POET RESEARCH CENTER - SCOTLAND — high-priority violation on file | SCOTLAND, Bon Homme, SD | FCE On-Site | State |
| 2026-03-11 | POET RESEARCH CENTER - SCOTLAND — high-priority violation on file | SCOTLAND, Bon Homme, SD | FCE On-Site | State |
| 2026-02-04 | HIGH PLAINS PROCESSING, LLC, A DELAWARE LIMITED LIABILITY | MITCHELL, Davison, SD | FCE On-Site | State |
| 2026-02-03 | NUSTAR PIPELINE OPERATING PARTNERSHIP LP - MITCHELL | MITCHELL, Davison, SD | FCE On-Site | State |
| 2026-02-03 | TRAIL KING INDUSTRIES INC - WEST PLANT | MITCHELL, Davison, SD | FCE On-Site | State |
| 2026-02-03 | RDU, LLC DBA BOYDS' GUNSTOCK INDUSTRIES | MITCHELL, Davison, SD | FCE On-Site | State |
Dates as filed by the agency that recorded the inspection. Figures from EPA’s ICIS-AIR download.