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The MPCA completed 78 enforcement cases for water quality, air quality, waste, stormwater, and wastewater violations in the second half of 2025, for a total of 146 for the year.
Unauthorized releases of untreated wastewater in October 2024 and January and February 2025, as well as failure to notify the Minnesota Duty Officer in a timely manner.
The MPCA investigates sites where hazardous substances have been or could be released to identify risks and appropriate remediation plans.
What consumers should know about new Minnesota laws prohibiting PFAS in consumer products and the MPCA’s efforts to minimize PFAS pollution by keeping it out of commonly used household products.
Hot mix asphalt plants in Minnesota must follow federal and state air standards.
A transport truck released fugitive lime dust that drifted and deposited on area school playground equipment, vehicles, and vegetation near its paper production facility in International Falls, Minn., in October 2023.
Ready-to-run meteorological data suitable for AERMOD.
New major-emitting industrial facilities and major modifications of existing facilities must obtain a permit before construction and include the best pollution-control technology available if they significantly increase emissions.
Minnesota industrial facilities that are required to submit Form R reports for Toxic Release Inventory (TRI) chemicals under the state and federal Emergency Planning and Community Right-to-Know Act (…
Elevated levels of trichloroethylene (TCE) are present in soil, soil vapor, and groundwater around this site in New Hope.
Phosphorus management plans help wastewater treatment facility operators and managers evaluate pollution prevention and and management options that can reduce the amount of phosphorus discharged to Minnesota waters.
Most AST systems that contain liquid capable of polluting the waters of the state are subject to state rules and permits.
Superfund requires specific investigation and cleanup processes, designates parties that are legally responsible for the cleanup, and provides funds for certain types of cleanups under Minnesota’s Environmental Response and Liability Act (MERLA).
The MPCA plans to amend Minnesota Rules chapter 7050, which establishes beneficial uses and water quality standards to protect those uses, and designates where the uses occur in waters of the state.
We Are Water next visits Ortonville and the Big Stone Lake area March 15 through April 21.
While hundreds of fish kills occur in Minnesota every year, mostly in lakes and ponds, fish kills on trout streams in southeast Minnesota are much less common.
James Wooton puts his scuba diving skills to work monitoring for aquatic invasive species in Otter Tail County lakes.
First of a series of MPCA staff profiles. Kevin Stroom conducts research on streams and has published a report about Straight River.
Where possible, permit holders must use MPCA's e-Services to apply for reissuance and administrative amendments.
The MPCA has released Minnesota’s PFAS Blueprint — a strategic, coordinated approach developed by multiple agencies to protect families and communities from per- and polyfluoroalkyl substances (PFAS).