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After many years of investigation, design work and construction, the Great Lakes Legacy Act remediation projects at these sites near Duluth, Minnesota, are complete.
The northeast region of Minnesota is home to the state’s metallic mining industry. The "Iron Range" has a history of iron ore (“ferrous”) mining dating back to the late 1800s and includes the large…
The MPCA's chloride reduction program assists communities and organizations across Minnesota in identifying sources of chloride.
MPCA studies shows 75% of Minnesota lakes meet standards for recreation. Clean Water Fund dollars help answer water quality questions.
Resources for wastewater clients.
Environmental information and permits that affect businesses using stationary engines or generators.
Phosphorus management plans help wastewater treatment facility operators and managers evaluate pollution prevention and and management options that can reduce the amount of phosphorus discharged to Minnesota waters.
MPCA evaluates water quality by measuring and monitoring the health of fish, macroinvertebrates, and plants.
Lake of the Woods is a big lake with a big problem caused by one of nature’s smallest organisms: algae. Scientists from the MPCA and the Science Museum are working together to understand why.
The Minnesota Pollution Control Agency (MPCA), the Department of Agriculture (MDA), and the Department of Natural Resources (DNR) are launching a new public awareness campaign in May to help protect…
The Minnesota Pollution Control Agency (MPCA)’s draft wastewater permit for the 3M facility at Cottage Grove adds new water quality protections for the Mississippi River and improves accountability through monitoring and reporting requirements. The draft permit is one of the most rigorous in state history and mandates the removal of certain per- and polyfluoroalkyl substances (PFAS) to levels below detection.
The MPCA closed 173 enforcement cases for water quality, air quality, waste, stormwater, and wastewater violations in the first half of 2023.
Investigation determined that PFAS pollution came from firefighting foam used at the college’s Emergency Response Training Center
The MPCA completed 68 enforcement cases for water quality, air quality, hazardous waste, stormwater, and wastewater violations in the first half of 2025.
Conditionally exempt facilities do not need an air quality permit if they follow specific requirements.
Groundwater is not a static thing, but moves around in the layers of rock and soil beneath our feet. How does this affect the work to treat contaminated groundwater and protect drinking water?
The MPCA sought a contractor to lead the effort to identify and replace tribal members' old wood stoves that are not certified by the U.S. EPA.
MPCA closed 153 enforcement cases for water quality, air quality, waste, stormwater, and wastewater violations in the second half of 2022.
The time that Andy Vig spends along the Minnesota River near Hoċokata Ṫi, cultural center of the Shakopee Mdewakanton Sioux Community, serves as a reminder of where his water comes from and a…
MPCA online services give users online access to apply for permits and licenses, submit required information, and pay fees and invoices.