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Image Air quality is expected to reach the orange AQI category for all of Minnesota, which is unhealthy for sensitive groups.The Minnesota Pollution…
The MPCA proposes to adopt the U.S. EPA's 2013 national recommended water quality criteria for ammonia as its Class 2 ammonia water quality standards for the protection of aquatic life.
The Minnesota Pollution Control Agency places members with host sites throughout Minnesota each year. Members serve full-time for 11 months (Sept. 2026 through Aug. 20227) at environmental nonprofits, government agencies, and educational institutions.
Minnesota’s Continuous Nitrate Sensor Network generates publicly available water quality data on nitrate levels in our surface water.
This permit aims to reduce phosphorus discharged by point sources to the Minnesota River Basin. This webpage contains links to the permit and its associated forms and fact sheets.
Contact the Minnesota Pollution Control Agency by phone or online form. This page includes office locations and options to requests for assistance or report emergencies.
Data shows that ice cover on Minnesota's lakes doesn't last as long as it used to. That means a shorter ice fishing season, yes, but it also has implications for the environment and Minnesota's fish and wildlife.
Thirty TMDLs undertaken in the Mississippi River - Twin Cities Watershed to address excess nutrients, turbidity, bacteria, and more.
Minnesota is a national leader in ensuring healthy air quality. The Clean Air Act requires states to take significant responsibility for preventing and controlling air pollution. States must pass…
The Minnesota Retiree Environmental Technical Assistance Program (RETAP) employs skilled, retired professionals to provide facility assessments to small businesses, institutions, and city and county governments in Minnesota.
We Are Water next visits Ortonville and the Big Stone Lake area March 15 through April 21.
Reducing campus discards and raising awareness of sustainability through outreach and community engagement
Environmental information and resources for gas stations.
The MPCA completed 75 enforcement cases for water quality, air quality, waste, stormwater, and wastewater violations in the second half of 2024.
The frequent wildfires in California and elsewhere, brought on by climate change, are affecting air quality for thousands of miles. That includes Minnesota.
Hot, sunny weather brings the possibility of air quality alerts due to ozone. But what exactly is ozone?
To make electric school buses more affordable to school districts, the MPCA started a grant program that puts more of the cleaner buses on routes across the state.
Details on sampling and monitoring requirements of your industrial stormwater permit.
When temperatures climb, conditions are ripe for Minnesota lakes to produce algae blooms, some of which can be harmful to pets and humans.
Minnesota law requires that people notify the MPCA (through the Minnesota Duty Officer) immediately when more than five gallons of petroleum or any amount of any substance under their control is released into the environment that could cause pollution of waters of the state.