Central Bi-Products Fined $3 Million for Air Quality Violations in Long Prairie, Minnesota

Central Bi-Products in Long Prairie, Minnesota, has been fined $3 million for exceeding hydrogen sulfide emission limits. The facility will also invest over $4 million to enhance its wastewater treatment. The Todd County Community Health & Human Services department will receive $1.2 million from the fine for local projects.

Published Mar 28, 2026

Central Bi-Products in Long Prairie, Minnesota, has been fined $3 million for air quality violations related to excessive hydrogen sulfide emissions, leading to odor complaints. The violations occurred between fall 2023 and 2024.

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The Todd County Community Health & Human Services department will receive $1.2 million to support local initiatives. In addition, Central Bi-Products will invest at least $4.4 million in a supplemental environmental project to improve wastewater treatment and control hydrogen sulfide emissions moving forward.