Violation page
Clean Air Act violations in South Dakota
South Dakota facilities in the imported ECHO data show air-program oversight, inspections, or noncompliance signals.
Recent actions
What the page calls out
Last recorded inspection: 2026-01-07.
Last recorded inspection: 2025-09-04.
Last recorded inspection: 2025-10-09.
Facilities
Profiles tied to this violation theme
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Ag Processing, Inc.- Aberdeen Soybean Processing Plant
Significant noncompliance across 4 of the last 12 quarters in the imported ECHO record.
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Wharf Resources (u S A ) Inc
No Violation Identified across 3 of the last 12 quarters in the imported ECHO record.
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Smithfield Packaged Meats Corp. - Sioux Falls, Sd
Violation Identified across 2 of the last 12 quarters in the imported ECHO record.
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South Dakota Soybean Processors
No Violation Identified across 2 of the last 12 quarters in the imported ECHO record.
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Novita Aurora, Llc
Violation Identified across 2 of the last 12 quarters in the imported ECHO record.
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Otter Tail Power Co - Big Stone Power Plant
No Violation Identified. Last recorded ECHO inspection: 2025-09-10.