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Minnesota’s air currently meets all federal air quality standards. However, even levels of air pollution below the standards can affect people’s health, including levels currently found in parts of Minnesota.

Researchers collect samples of sediment from the bottom of Lake of the Woods in 2024. (Photo courtesy of St. Croix Watershed Research Station) After years of study…

Conditionally exempt facilities do not need an air quality permit if they follow specific requirements.

Determine what type(s) of water quality permit is required at facilities that mine construction sand and gravel; industrial sand; quarry limestone, granite or dimension stone; operate hot mix asphalt production areas; produce concrete block, brick and other products; and/or produce ready-mix concrete.

A dedicated stakeholder advisory group was assembled from sectors that will be affected by PFAS at remediation sites to establish guidance for PFAS investigation and cleanup.

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.

Each year, Minnesotans throw away more than 850,000 tons of recyclables, worth around $153 million. Here's how we're reducing those numbers in Greater Minnesota.

Two small creeks in the Nemadji River watershed are cleaner, and some fish have returned, after restoration work that the MPCA took part in.

In Minnesota, certain tasks in the design, installation, repair, maintenance, operation, or inspection of septic systems can only be done by certified individuals. Find out what training, experience, and exams are required to fulfill the requirements for certification.

Residents' guide to stormwater permitting.

Septic tanks must be registered in Minnesota to ensure they are watertight and have adequate structural integrity.

Bagnado, a 25-foot-tall spinning tornado of plastic bags, will return to Eco Experience at the Minnesota State Fair

AccessibilityThe Minnesota Pollution Control Agency is committed to accessibility on its website. As part of that commitment, the MPCA makes every effort to comply with the State of Minnesota…

The Two Rivers Watershed is part of the Red River Basin in northwestern Minnesota. Two Rivers actually consists of three branches: the North, Middle, and South Branch.

Minnesota rules require many facilities that produce air emissions to conduct performance testing.

In Minnesota, backyard burning is illegal for most homeowners. Change disposal habits to protect human health and reduce pollution.

Keep It Clean focuses on the growing problem of garbage and human waste left on the ice by anglers and other visitors during ice fishing season.

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).

A new $75,000 grant from the MPCA will help the U of M’s Forever Green Initiative make camelina a viable crop for sustainable aviation fuel.

For National Farmers Day, a profile of pork and crop farmer Randy Spronk of Edgerton, Minnesota, and his sustainable ag practices.