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Initial screening information for a contaminant of emerging concern, perfluorooctane sulfonate.

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

In 2009, a federal court ruled that NPDES permits were required for all biological and chemical pesticide applications that leave a residue in water when applications are made in, over, or near waters of the United States.

The Lower Rainy River Watershed is composed of a conglomeration of tributaries to the Rainy River, from International Falls and west to the Rainy River's pour point at the Lake of the Woods.

The Cloquet River Watershed covers approximately 507,858 acres (794 square miles) and is located within portions of Lake and St. Louis Counties in northeastern Minnesota.

The Big Fork River Watershed covers more than 1.3 million acres that include some of the state’s most pristine wilderness. The river flows north 165 miles from Dora Lake (45 miles northeast of Bemidji in north-central Itasca County) to the Rainy River, which forms the Minnesota-Canada border.

Minnesota rules require that anyone installing, repairing, or removing regulated underground storage tanks be certified by the MPCA.

This year’s theme is Advancing Nutrient Trading with Sustainable Farming and Conservation Practices.

East Side Jersey Dairy Inc., doing business as Prairie Farms Dairy Inc., had several liquid sugar spills they failed to report to the Minnesota Duty Officer in 2022 and 2023. The spills created a potential for harm to the environment and aquatic life had they reached wetlands near the company’s facility in Woodbury, Minnesota.

Image Air quality is expected to reach the red AQI category in north central and northwest Minnesota, which is unhealthy for everyone.The Minnesota…

Minnesota’s Continuous Nitrate Sensor Network generates publicly available water quality data on nitrate levels in our surface water.

The MPCA works with industry, government, and residents to reduce and manage waste.

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.

MPCA rules govern how septic systems are designed, installed, and managed.

Minnesota prohibits rechargeable batteries and products with non-removable rechargeable batteries from being disposed of in mixed municipal waste.

Funded projects to remove older diesel buses from service and replace them with new, cleaner models.

The Minnesota River - Yellow Medicine River Watershed (1.3 million acres) has traditionally been managed as two separate watersheds, the Hawk Creek Watershed to the north of the Minnesota River and the Yellow Medicine River Watershed to the south.

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

Under the Minnesota Electronics Recycling Act, the MPCA wishes to shift the responsibility for paying for collection and recycling of "covered electronic devices" away from the public sector, specifically local government.

The Minnesota Pollution Control Agency's Emergency Response Program (ERP) oversees the cleanup of all types of spills and environmental emergencies.