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Application fees must be submitted with your permit application. The submittal cover page form will help you add up the points assigned to each type of permit application or request. Multiply the…

Public input is critical to the work that we do. We invite that input by soliciting comments on agency decisions, holding public informational meetings, and more.

The 2025 MPCA annual report on Brownfields celebrated numerous major achievements cleaning up and rehabilitating polluted properties.

Companies penalized for improperly releasing polluted stormwater at Xcel Energy’s St. Paul Service Center construction site on the east side of Saint Paul.

The disposable wipes toolkit includes free, customizable communications resources to help communities inform their residents about the hazards of flushing disposable wipes.

An index of biological integrity (IBI) is a particularly powerful tool that provides an accurate measure of the condition of the biological communities and are a direct determinant of the attainment of aquatic life uses.

The TMDL is based on 62 impairments for turbidity and total suspended solids along the Minnesota River and its tributaries and in the Greater Blue Earth River basin.

The effects of contaminants of emerging concern (CECs) on fish, wildlife, and humans are only partly understood. The MPCA has been collecting occurrence data for a diverse set of CECs, but toxicity…

Guidance for small businesses on reporting air emissions.

Residential wood burning has been increasing in Minnesota, both for home heating and recreation.

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.

Projects to prioritize environmental justice areas

MPCA staff studied the river during this summer's extreme drought conditions to see if tighter limits on phosphorus are protecting aquatic life.

The MPCA has released Minnesota’s PFAS Blueprint — a strategic, coordinated approach developed by multiple agencies to protect families and communities from per- and polyfluoroalkyl substances (PFAS).

MPCA sought proposals from qualified environmental contractors for a contract to support the agency's Watershed Division on statewide, basin-wide, water body, and watershed scale projects.

The MPCA studies, monitors, and regulates many land pollutants that affect the quality of life in Minnesota and the health of residents.

There are two types of federal air regulations, the National Emission Standards for Hazardous Air Pollutants (NESHAPs) and New Source Performance Standards (NSPSs). Either or both regulations may…

Sediment is composed of loose particles of sand, clay, silt, and other substances. Sediment flows into Minnesota lakes, rivers, and streams via runoff in both urban and rural areas.

With the end of the 2025 model year in the automobile industry, so ends Minnesota's Clean Cars rule.  The Clean Cars rule, adopted in 2020, had a goal of electric vehicles exceeding 6% of all…

Elevated levels of tetrachloroethylene and trichloroethylene have been found in soil vapor around this site in St. Paul.