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The Minnesota Pollution Control Agency (MPCA) has issued an air quality alert for north and central Minnesota. The alert runs until 11 p.m. on Wednesday, July 30. Fine particle levels are expected to reach the red air quality index (AQI) category, a level considered unhealthy for everyone, across north central, northwest, northeast, and east central Minnesota, and the orange AQI category, a level considered unhealthy for sensitive groups, across central, east central, west central, north central, and northwest Minnesota.
Image Many commercial buildings in Anoka, Carver, Dakota, Hennepin, Ramsey, Scott, and Washington counties are required to recycle at least three of the…
The MPCA Brownfield Program is a fee-for-service program that provides assistance to promote the investigation, cleanup, and redevelopment of property that is contaminated with petroleum and hazardous substances.
We Are Water next visits Ely April 24 through June 16.
The Mississippi River - Sartell Watershed covers approximately 652,800 acres (1,020 sq. miles) in the central part of the Upper Mississippi River Basin. The watershed includes parts of Benton, Crow Wing, Mille Lacs, Morrison, Stearns, and Todd counties.
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 solicited project proposals to distribute $10 million to communities for projects to prepare local wastewater infrastructure for the impacts of climate change. These projects are specifically meant to protect water quality and increase resilience.
The PFAS guidance document uses an evidence-based approach that builds upon the framework and strategies presented in previous MPCA publications.
Under the federal Clean Water Act, states must designate beneficial uses for all waters and develop water quality standards to protect each use.
A permit by rule (PBR) means a facility or activity meets the requirements outlined in Minnesota rules and is deemed to have obtained a solid waste management facility permit without making application for it.
Water scientists from the MPCA published four watershed reports in 2025, updating the data we need to keep Minnesota’s waters clean and protected.
Waterways in the northeastern part of the state are generally in better condition than those in the southern, central, and western regions.
Air quality dispersion modeling uses a computer model to estimate air pollution concentrations from regulated facilities and other sources of pollution.
Minnesota’s air currently meets all federal air quality standards. However, even levels of air pollution below the standards can affect people’s health, including levels currently found in parts of Minnesota.
Details on major and minor modifications of a solid waste management facility permit.
Sustainable aviation fuel (SAF) is low-carbon synthetic fuel made from non-petroleum sources that is blended with traditional jet fuel to reduce greenhouse gas emissions from air transportation.
Environmental information and resources for the aggregate industry.
Minnesota businesses, organizations, and municipalities seeking or holding MPCA wastewater permits are charged two basic types of permit fees: application fees and annual fees.
Guidance on NPDES/SDS construction stormwater requirements
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.