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

The Mississippi River - Headwaters Watershed consists of 1.26 million acres (1,961 square miles) and contains the headwaters of the Mississippi River at Lake Itasca in Itasca State Park. The watershed includes parts of Becker, Beltrami, Cass, Clearwater, Hubbard and Itasca counties.

The MPCA is collaborating with many federal, Tribal, state, and local partners to clean up contaminated sites in the Duluth harbor and St. Louis River.

The MPCA's new online training will help small businesses adapt to the effects of climate change and become more resilient.

Intense storms of late spring can wash soil and other pollutants into rivers. Producers can use several techniques to protect their soil and water quality.

The MPCA provides climate change technical assistance to Minnesotan, including one-on-one consultation or small group facilitation, to assess current capacity, build on strengths, and address underlying needs.

Emissions generated from gasoline and diesel powered vehicles are the greatest source of air pollution in Minnesota

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.

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

MPCA permits are required to both build and operate landfills in Minnesota.

Residents' guide to stormwater permitting.

Thanks to years of restoration efforts, the MPCA confirmed the Kabekona River meets water quality standards for recreation and proposed its removal from the 2026 impaired waters list.

A cumulative impacts analysis provides a comprehensive look at all burdens that affect a community or neighborhood.

Implementing water quality standards come with tangible costs and benefits. Costs such as taxes to residents, regulated parties, and communities help achieve benefits such as increased property values, tourism, and protecting human health.

Nitrogen, like phosphorus, is a nutrient that pollutes in state waters, and its concentration in many rivers has been increasing from historic natural levels over time due to human influences.…

The Cedar River Watershed in Minnesota encompasses 454,029 acres in Mower, Freeborn, Dodge, and Steele counties. This watershed covers prime agricultural land with many streams and drainage ditches flowing into the river.

The Minnesota Pollution Control Agency (MPCA) will host a public meeting to present information and hear comments on the environmental assessment worksheet (EAW) and feedlot permit for a proposed…

The MPCA provides assistance and training for program managers and operators of household hazardous waste (HHW) facilities to ensure compliance with environmental and worker protection laws and regulations.

Medicines flushed down the drain can contaminate water, which can hurt fish and other aquatic wildlife, and end up in our drinking water.

This long-term data gathering initiative helps track trends in water bodies around the state. The MPCA is grateful for every volunteer who has dedicated time to monitoring their favorite lake or stream.