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The MPCA gave an environmental award to the Evangelical Lutheran Good Samaritan Society, which sold land so it could become a watershed wetland in Baxter. The project is being finalized in summer 2024.
Trichloroethylene (TCE) is a man-made chemical commonly found in wood finishes, glues and adhesives, paint or paint removers, and spot and metal cleaners. Exposure can have significant effects…
The MPCA regulates waste, recycling, and disposal activities in Minnesota. MPCA permits are required for the design, construction, and operation of solid waste management facilities where storage, collection, transportation, processing or reuse, conversion, or disposal of solid waste occurs.
A watershed is the area of land where all of the water that drains off of it goes into the same place — a river, stream or lake.
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 is committed to engaging broadly with the public and ensuring that residents affected by its decisions have a voice in its processes.
The MPCA added three bodies of water to the impaired waters list for PFAS contamination. Which are they? How did they get polluted? And how much PFAS does it take to contaminate a body of water?
Petroleum spills from pipelines, trains, trucks, storage tanks, and other sources have damaged natural resources throughout Minnesota.
The MPCA completed 68 enforcement cases for water quality, air quality, hazardous waste, stormwater, and wastewater violations in the first half of 2025.
The MPCA issued a new air quality permit for this manufacturing facility in White Bear Township.
1,4-dioxane was mainly used as a stabilizer for chlorinated solvent 1,1,1-trichloroethane. 1,4-dioxane can also be an unintended contaminant in the production of certain products, including some…
Determine what type(s) of water quality permit is required at facilities that mine construction sand and gravel; industrial sand; quarry limestone, granite or dimension stone; operate hot mix asphalt production areas; produce concrete block, brick and other products; and/or produce ready-mix concrete.
In Minnesota, wastewater treatment operators must be certified to ensure that facilities meet operational requirements.
Ready-to-run meteorological data suitable for AERMOD.
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.
Polycyclic aromatic hydrocarbons (PAHs) are a class of more than 100 chemicals that occur naturally in coal, crude oil, and gasoline, and are also present in products made from fossil fuels, such as…
The MPCA had approximately $2 million to support projects that focus on sustainable building and materials management strategies that reduce waste and increase deconstruction, salvage, and reuse.
Ground-level ozone is a secondary pollutant formed through chemical reactions between nitrogen oxides (NOx) and volatile organic compounds (VOCs). Ozone can irritate the eyes, nose and throat,…
The MPCA is investigating the source of the chemical 1,4-dioxane in private wells in Gem Lake.
A water quality variance is a temporary change in a state's water quality standard for a specific pollutant and its relevant criteria, allowing deviation from meeting a water quality-based effluent limit for a particular discharger.