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The MPCA issued the most recent municipal stormwater general permit (MNR040000) in November 2020.

The StormReady designation recognizes the MPCA’s commitment to emergency management planning and continuity of operations during an emergency.

Tools to help small businesses determine if they need an air emissions permit and/or track compliance with their current air emissions permit.

Training resources for feedlot officers in Minnesota.

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.

In Minnesota, wastewater treatment operators must be certified to ensure that facilities meet operational requirements.

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.

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

Question and answer session with Addison Otto, a rule coordinator with the MPCA, about her work with the agency and how her hobby farm informs her work.

Across the state, water softeners contribute significantly to chloride pollution. Here’s how to make sure your water softener isn’t sending excess salt into the environment

A gateway to common regulatory information that affects stationary engines.

Less than three years after Minnesota passed the country's first ban on TCE, a carcinogenic solvent, facilities around the state have removed it from their processes.

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

Permits for wastewater treatment require monthly, quarterly, or annual reporting of discharge monitoring results

MPCA's leadership team.

Excess phosphorus is harming Minnesota waters. Phosphorus comes from both regulated and non-regulated sources. A quarter of Minnesota lakes have high levels of phosphorus, which means that they do…

Thermal paper is thin with a slick feel or sheen finish and discolors easily when scratched.

To reduce contamination at compost facilities, Minnesota’s compostable product labeling law requires all bags, packaging, and food service products labeled as “compostable” and sold in Minnesota after Jan. 1, 2025, to meet certain requirements.

The Minnesota Department of Natural Resources (DNR) and Minnesota Pollution Control Agency (MPCA) sample and test fish in bodies of water where known pollution issues may be a concern for human health through fish consumption.

MPCA's fish sampling process and why we do it