Search
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.
Allows new and expanding wastewater treatment facilities to receive a discharge permit prior to completion of an applicable phosphorus-related TMDL. Through pre-TMDL phosphorus trading a, a new or expanding facility may increase its phosphorus discharge by purchasing a phosphorus reduction from another source.
Improving water quality in Lake George has required treating phosphorus in the water and filtering pollutants out of urban stormwater.
Removing Middle Lake from the impaired waters list required wrangling with a bottom feeder, the invasive carp.
Profile of Julia Dady, a volunteer water monitor for Battle Creek in Saint Paul.
Air quality dispersion modeling uses a computer model to estimate air pollution concentrations from regulated facilities and other sources of pollution.
The Mississippi River - Winona Watershed covers 419,200 acres in the southeast Minnesota counties of Wabasha, Winona, and Olmsted. A majority of the watershed is cropland, with forest and grassland covering large portions as well.
Initial screening information for a contaminant of emerging concern, Perfluorohexane sulfonic acid.
Volatile organic compounds (VOCs) are a group of chemicals that can vaporize into air. VOCs are in thousands of daily use products, including paint, varnish, wax, and various cleaning, degreasing,…
Approximately $1.3 million in funding was available for local climate action planning and implementation projects.
The Climate Smart Food Systems initiative, funded by the U.S. EPA’s Climate Pollution Reduction Grants program, positions Minnesota as a national model for transforming our food system from farm to freezer.
The MPCA completed 68 enforcement cases for water quality, air quality, hazardous waste, stormwater, and wastewater violations in the first half of 2025.
What is a stormwater catch basin, and should I be worried about it?
Industrial Stormwater Steps to Compliance - Step 5: Gather application materials before applying, use the e-Service to apply or modify coverage
Heavy metals are an ill-defined group of inorganic chemical hazards that include lead, chromium, arsenic, and cadmium. They may leach into soil and water from industrial sites, mines or…
Riverview LLP is seeking to expand its existing West River Dairy facility near Morris from 7,855 cows to a total capacity of 18,855 cows.
Sustained efforts by cities and water management organizations have restored water quality in two Dakota County lakes.
Ten TMDL projects undertaken in the Lower St. Croix River Watershed to address nutrient, biota, bacteria, and other impairments.
Financing is available for public entities in Minnesota to expand or improve stormwater infrastructure.
The MPCA is seeking public comment on a draft wastewater permit and accompanying environmental assessment worksheet (EAW) for a new regional sanitary district to serve the communities of Goodhue, Wanamingo, Zumbrota, and Pine Island.