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Answers to questions frequently asked by municipalities about management of contaminated sediments in stormwater collection systems that they own and operate.
Minnesota has enacted laws to end avoidable uses of PFAS in Minnesota by 2032.
We have some suggestions for avoiding disposable items, excessive packaging, and single-use plastics when shopping for your everyday needs.
New major-emitting industrial facilities and major modifications of existing facilities must obtain a permit before construction and include the best pollution-control technology available if they significantly increase emissions.
This feature summarizes findings from four WRAPS reports in 2024: Root River, Mississippi River-St. Cloud, Pomme de Terre River, and Mississippi River-Lake Pepin Tributaries.
Long-term lake management considers the unique environmental, cultural, and biological factors affecting the lake and sets a priority on finding lasting solutions.
Details on sampling and monitoring requirements of your industrial stormwater permit.
The MPCA's chloride reduction program assists communities and organizations across Minnesota in identifying sources of chloride.
In 2023, Minnesota saw more air quality alerts covering more days than ever before. Smoke from Canadian wildfires throughout the summer caused many of the alerts, though climate change is playing a growing role in Minnesota's air quality.
The MPCA completed 68 enforcement cases for water quality, air quality, hazardous waste, stormwater, and wastewater violations in the first half of 2025.
“Area C” is the name given to Ford Motor Company’s former industrial waste dump on the floodplain of the Mississippi River, at the base of the bluff below the former Twin Cities Assembly Plant in Saint Paul.
Water softeners produce much of the chloride that pollutes Minnesota’s waters. An MPCA grant aims to reduce that pollution with water softener replacement rebate programs.
Many industrial by-products are good candidates for land application based on their nutrient content.
The MPCA completed 78 enforcement cases for water quality, air quality, waste, stormwater, and wastewater violations in the second half of 2025, for a total of 146 for the year.
MPCA completed 100 enforcement cases for water quality, air quality, waste, stormwater, and wastewater violations in the first half of 2024
The MPCA recognized 236 wastewater facilities for outstanding operations in 2024.
MPCA recognized 253 municipal and industrial wastewater treatment plants for outstanding operations in 2023.
Status of total maximum daily load (TMDL) projects in Minnesota.