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Minnesota state agencies are working together to reduce greenhouse gas emissions that cause climate change.

Air quality dispersion modeling uses a computer model to estimate air pollution concentrations from regulated facilities and other sources of pollution.

Increasing organics collection and processing infrastructure is necessary to meet statewide recycling goals

Minnesota businesses, organizations, and municipalities seeking or holding MPCA wastewater permits are charged two basic types of permit fees: application fees and annual fees.

Wild rice is an important part of the biological community in many Minnesota lakes, streams, and wetlands, and a cultural resource to many, particularly members of the Dakota and Ojibwe Tribal Nations in Minnesota.

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%.

Chrome-plating facility in St. Louis Park is the alleged source of pollution in local lakes.

Permit addresses the most common causes of contaminated groundwater, including releases of petroleum, volatile organic compounds, and other hazardous substances.

With 100 days until a law aimed at removing PFAS from consumer products goes into effect, state leaders celebrate three Minnesota-based companies already offering goods made without PFAS.

Northshore Mining operates the Peter Mitchell Mine, a taconite ore mining operation, in Babbitt. It sends the ore that it mines there via rail to a processing plant in Silver Bay, which is a separate facility with its own individual air permit.

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.

Important details to help make your e-Service submittal go as smoothly as possible.

Image Stormwater has an enormous impact on water quality in Minnesota, whether it's runoff from farm fields or from urban hardscapes. Rain and snow…

Minnesota's strategic, coordinated approach to protecting families and communities from per- and polyfluoroalkyl substances.

The TMDL is based on 62 impairments for turbidity and total suspended solids along the Minnesota River and its tributaries and in the Greater Blue Earth River basin.

The Watershed Pollutant Load Monitoring Network (WPLMN) is a partnership that collects data on water quality and flow in Minnesota.

The Meadows Mobile Home Park discharged untreated sewage to the ground in two separate violations in 2025.

The MPCA must complete assessments to gather critical information too inform the development of the EPR program statewide.

Some facilities may have air emissions low enough to qualify as "insignificant," and not be required to have an air permit.

Collaboration and engagement have been keys to progress in the St. Louis River AOC.