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Any facility that emits air pollutants above certain levels is required to have an air quality permit.

Edina-based startup, Naware, recently took the $10,000 Green and Sustainable Chemistry Prize, sponsored by the MPCA as part of the MN Cup, for combining two unlikely technologies to replace herbicides in lawncare with a more environmentally friendly alternative.

Controlling phosphorus is an important part of protecting Minnesota waters.

Minnesota passed a law in 2023 that restricts the use of lead and cadmium in 15 categories of consumer products, including toys and school supplies.

Feedlot nutrient and manure management

When people think of sources of air pollution, they typically think about buildings with big smokestacks like power plants and factories. Only about a quarter of the air pollution in Minnesota comes…

Willernie-based Revitri won the MPCA’s Green and Sustainable Chemistry Prize for its innovative manufactured glass beads

Studies of Minnesota’s waters show that contaminants of emerging concern are widespread in the state’s lakes and rivers.

Minnesota’s policy is to eliminate or reduce the use, generation, and release of toxic pollutants and hazardous wastes at their source.

The Floristic Quality Assessment (FQA) is a vegetation-based ecological assessment approach that can be used for wetland quality monitoring and assessment.

Whether they are called sloughs, swamps, bogs, or potholes, these are all wetlands and they provide many environmental benefits and contribute to watershed health. Though Minnesota has lost almost half of its wetland acreage over time, the quality of the remaining wetlands is good overall.

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.

Although the impacts from Minnesota’s changing climate are touching all of us, some groups of people are more at risk.

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%.

MPCA investigation in 2025 found that Sheldahl Flexible Technologies submitted incorrect permit applications and failed to obtain MPCA approval prior to installing or modifying three pieces of industrial mixing equipment.

Businesses face challenges from climate change's impacts, but they can also take steps to reduce their contributions to climate change.

By taking steps beyond compliance to reduce your business's energy use and transportation impact and increasing the sustainability of your business's operations, your business can see tangible benefits.

The MPCA works with city and county governments, watershed districts, consultants, and others on monitoring, protecting, and restoring water quality. This is a repository of guidance and technical resources for agency partners.

Al-Corn Clean Fuel, LLC, an ethanol plant in Dodge County, paid $40,427 in fines for air permit violations.

The MPCA created a statewide inventory of streams that have been hydrologically modified: channelized, ditched, or impounded