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The MPCA fines American Crystal Sugar in Moorhead $16,000 for wastewater violations.
Pretreatment by commercial facilities and other non-domestic wastewater sources removes harmful pollutants before the wastewater is discharged to a municipal sewer system. The U.S. EPA has delegated MPCA the authority to approve pretreatment programs at the local level and oversee statewide pretreatment activities.
MPCA investigation determined that construction sediment was discharged into the Blue Earth River and a county ditch.
In October 2023, New Ulm Steel failed a noise test at its facility. New Ulm Steel was also fined for dust escaping the facility and settling on a public road.
Chrome-plating facility in St. Louis Park is the alleged source of pollution in local lakes.
DENCO II LLC failed a stack test in April, 2024, that showed that the facility exceeded its permit limit for particulate matter by more than 170%.
Nottingham Construction failed to notify the MPCA that it was demolishing a property in Mahtomedi that contained asbestos and failed to send the asbestos demolition debris to a permitted facility.
Cities fined over $12,000 apiece for municipal wastewater violations
S.M. Hentges & Sons, a Jordan-based construction company, paid $13,078 for construction stormwater violations for a project in Chaska.
KODA Energy violated its air permit in Scott County from June 2023 to February 2024, according to a Minnesota Pollution Control Agency (MPCA) enforcement investigation. The investigation found KODA energy was burning waste-treated corn and should have submitted a major permit amendment before burning an industrial solid as a waste-to-energy incineration facility.
Sandblasted material from a construction site was deposited on a parking ramp next door.
Wastewater treatment plant in Elk River paid a $15,000 fine for consistently discharging fecal coliform and phosphorus into nearby Tibbets Brook.
Violated Minnesota rules and federal standards on several occasions at a barley malting facility located in Moorhead, Minnesota.
The Meadows Mobile Home Park discharged untreated sewage to the ground in two separate violations in 2025.
An inspection in 2024 discovered multiple violations at this site in , including failure to conduct testing of tank systems that prevent leaks and corrosion and a broken gauge used in tank leak detection tests.
MPCA investigation found that Shearer’s Foods operated without an air permit and submitted incomplete applications during the permit process.
New Flyer of America, a bus assembly plant in Saint Cloud, paid $12,112.50 for hazardous waste violations.
Central Bi-Products emitted higher levels of hydrogen sulfide than is allowed, causing odor complaints in the community of Long Prairie and resulting in a $3 million fine. Central Bi-Products has agreed to spend a minimum of $4.4 million on a supplemental environmental project that will improve its wastewater treatment.
Sugar beet processing facility emitted higher levels of hydrogen sulfide and particulates than its permit allows between 2020 and 2022. The Polk-Norman-Mahnomen Community Health Board will receive 40% of the $350,000 penalty according to a new Minnesota statute enacted in 2023.
An MPCA investigation determined that General Mills violated state rule at its oat processing facility in Fridley on several occasions from 2019 through 2023.