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Environmental rules and regulations are essential tools used to protect Minnesota’s environment, setting standards for environmental quality and limits on pollutants that can be discharged from facilities. The MPCA helps protect our environment by writing and enforcing these rules and regulations.
In the management of construction stormwater, MPCA recognizes Southwest Light Rail Extension project for responsible development through stormwater controls.
Initial screening information for a contaminant of emerging concern, perfluorooctane sulfonate.
The Upper Iowa River is a 156-mile-long tributary of the Mississippi River that rises in Mower County in southeastern Minnesota near the Iowa border. It then flows south through three Iowa counties before flowing into the Mississippi. It drains nearly 641,000 acres (1,005 square miles).
Businesses like grocery, liquor, and convenience stores depend on refrigeration systems. Some of these systems, however, can prove expensive to operate and harmful to the environment.
A TMDL addressing excess bacteria in 22 stream reaches and protection strategies for 29 stream and river reaches in the Upper Mississippi River watershed.
Green and safer product chemistry is formulating or designing a new product (or reformulating an existing one) to reduce harmful environmental, workplace, human health, and energy use effects over the product's entire life cycle.
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…
MPCA's fish sampling process and why we do it
Young Life Castaway Club violated several wastewater regulations, mainly modifying wastewater treatment systems without approval, between 2019 and 2022 at its youth and family camp on Pelican Lake, just south of Detroit Lakes. These violations carry serious risks of harm to the environment.
Forms and guidance for local partners submitting surface water data, QA/QC information and progress reports to MPCA.
Feedlot nutrient and manure management
Northshore Mining Company has applied for updated wastewater and air quality permits for its Silver Bay taconite processing plant and Mile Post 7 tailings basin.
Industrial Stormwater Steps to Compliance Step 4: Create SWPPP, choose BMPs
The PFAS guidance document uses an evidence-based approach that builds upon the framework and strategies presented in previous MPCA publications.
As part of the PFAS pollution prevention law called Amara’s Law, manufacturers are required to report intentionally added PFAS in products sold in Minnesota and pay a fee. The Minnesota Pollution Control Agency has extended the reporting due date to Sept. 15, 2026.
Our strategic plan has six broad goals that, when taken together, map our work for five years. MPCA’s strategic plan guides the agency’s work from Jan. 1, 2024, to Dec. 31, 2028. These goals are…
The St. Louis River Mercury TMDL will determine mercury reductions needed for lakes and rivers in the St. Louis River watershed.
Cleveland-Cliffs owns the Minorca Mine northeast of Virginia, Minnesota. The mine’s two taconite mining pits are about one mile southeast of the plant.
The MPCA has actively been developing methods and building capacity to improve our ability to monitor and assess wetlands to protect and restore them.