EPA Air · violations by state and year

High-priority air violations in South Dakota, 2026

35Violations

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 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

South Dakota, other years

High-priority air violations recorded in South Dakota, 2026

Date	Facility	Where	Kind	Agency
2026-08-31	HURON ENERGY LLC, DBA GLACIAL LAKES ENERGY LLC — high-priority violation on file	HURON, Beadle, SD	Earliest FRV determination	State
2026-08-28	HUB CITY ENERGY, LLC — high-priority violation on file	ABERDEEN, Brown, SD	Earliest FRV determination	State
2026-08-28	ABERDEEN ENERGY, LLC — high-priority violation on file	MINA, Edmunds, SD	Earliest FRV determination	State
2026-08-21	NORTH CENTRAL FOAM — high-priority violation on file	HURON, Beadle, SD	Earliest FRV determination	State
2026-08-21	UNIVERSITY OF SOUTH DAKOTA — high-priority violation on file	VERMILLION, Clay, SD	Earliest FRV determination	State
2026-07-01	VALLEY QUEEN CHEESE FACTORY INC. — high-priority violation on file	MILBANK, Grant, SD	Earliest FRV determination	State
2026-06-30	WOODLAND CABINETRY — high-priority violation on file	SISSETON, Roberts, SD	Earliest FRV determination	State
2026-06-25	ABERDEEN ENERGY, LLC — high-priority violation on file	MINA, Edmunds, SD	Earliest FRV determination	State
2026-06-15	POET BIOPROCESSING - CHANCELLOR, LLC — high-priority violation on file	CHANCELLOR, Turner, SD	Earliest FRV determination	State
2026-06-15	POET RESEARCH CENTER - SCOTLAND — high-priority violation on file	SCOTLAND, Bon Homme, SD	Earliest FRV determination	State
2026-06-15	RED RIVER ENERGY, LLC — high-priority violation on file	ROSHOLT, Roberts, SD	Earliest FRV determination	State
2026-06-15	REDFIELD ENERGY LLC — high-priority violation on file	REDFIELD, Beadle, SD	Earliest FRV determination	State
2026-06-15	SOLVENTUM US LLC — high-priority violation on file	BROOKINGS, Brookings, SD	Earliest FRV determination	State
2026-06-15	VALERO RENEWABLE FUELS COMPANY LLC — high-priority violation on file	AURORA, Brookings, SD	Earliest FRV determination	State
2026-06-15	WOODLAND CABINETRY — high-priority violation on file	SISSETON, Roberts, SD	Earliest FRV determination	State
2026-06-10	HUB CITY ENERGY, LLC — high-priority violation on file	ABERDEEN, Brown, SD	Earliest FRV determination	State
2026-06-09	ABERDEEN ENERGY, LLC — high-priority violation on file	MINA, Edmunds, SD	Earliest FRV determination	State
2026-06-03	GCC DACOTAH — high-priority violation on file	RAPID CITY, Pennington, SD	Earliest FRV determination	State
2026-05-28	TRUSSBILT, LLC — high-priority violation on file	HURON, Beadle, SD	Earliest FRV determination	State
2026-05-28	REDFIELD ENERGY LLC — high-priority violation on file	REDFIELD, Beadle, SD	Earliest FRV determination	State
2026-05-11	CRETE READY FOAM LLC — high-priority violation on file	WESSINGTON SPRINGS, Jerauld, SD	Earliest FRV determination	State
2026-05-11	ABERDEEN ENERGY, LLC — high-priority violation on file	MINA, Edmunds, SD	Earliest FRV determination	State
2026-05-07	RING NECK ENERGY & FEED LLC — high-priority violation on file	ONIDA, Sully, SD	Earliest FRV determination	State
2026-05-06	3M COMPANY - ABERDEEN — high-priority violation on file	ABERDEEN, Brown, SD	Earliest FRV determination	State
2026-05-06	HUB CITY ENERGY, LLC — high-priority violation on file	ABERDEEN, Brown, SD	Earliest FRV determination	State
2026-05-06	ABERDEEN ENERGY, LLC — high-priority violation on file	MINA, Edmunds, SD	Earliest FRV determination	State
2026-05-06	NUGEN ENERGY LLC — high-priority violation on file	MARION, Turner, SD	Earliest FRV determination	State
2026-05-04	FORT PIERRE POWER AND LIGHT PLANT — high-priority violation on file	FORT PIERRE, Stanley, SD	Earliest FRV determination	State
2026-04-17	HUB CITY ENERGY, LLC — high-priority violation on file	ABERDEEN, Brown, SD	Earliest FRV determination	State
2026-04-17	HUB CITY ENERGY, LLC — high-priority violation on file	ABERDEEN, Brown, SD	Earliest FRV determination	State
2026-03-06	ABERDEEN ENERGY, LLC — high-priority violation on file	MINA, Edmunds, SD	Earliest FRV determination	State
2026-02-24	HUB CITY ENERGY, LLC — high-priority violation on file	ABERDEEN, Brown, SD	Earliest FRV determination	State
2026-02-10	HUB CITY ENERGY, LLC — high-priority violation on file	ABERDEEN, Brown, SD	Earliest FRV determination	State
2026-01-18	ABERDEEN ENERGY, LLC — high-priority violation on file	MINA, Edmunds, SD	Earliest FRV determination	State
2026-01-07	HENKEL US OPERATIONS CORPORATION — high-priority violation on file	BRANDON, Minnehaha, SD	Earliest FRV determination	State

Dates as filed by the agency that recorded the violation. Figures from EPA’s ICIS-AIR download.