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The triennial standards review (TSR) gives the public a formal opportunity to provide wide-ranging comments about water quality standards.
The MPCA has a wide range of educational displays, programs, and materials about chloride pollution. We encourage our partners to utilize these resources to engage with their community.
New reports detail impairments affecting recreation, and fish and aquatic insect communities in the Redwood River Watershed in southwestern Minnesota.
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?
BALMM emphasizes land use practices to improve or protect water quality, particularly in the areas of watershed management, aquifer protection and floodplain management.
The MPCA's chloride reduction program assists communities and organizations across Minnesota in identifying sources of chloride.
Mesabi Metallics is currently constructing a new taconite mine and taconite pellet production facility on the site of the former Butler Taconite Mining Company facility near Nashwauk.
MPCA staff studied the river during this summer's extreme drought conditions to see if tighter limits on phosphorus are protecting aquatic life.
A project to address excess sediment and turbidity in the Mississippi River, from Fort Snelling at St. Paul to upper Lake Pepin at Red Wing, based on a site-specific standard developed by the MPCA and Wisconsin Department of Natural Resources.
The majority of monitored streams and lakes in the Blue Earth River Watershed in south-central Minnesota are not meeting water quality standards.
Volunteer-collected data are regularly used in decision-making and conservation efforts. Find a program that excites you and join in.
The St. Louis River watershed covers 3,584 square miles at the head of the Great Lakes and represents the extreme headwaters of the St. Lawrence River.
Minnesota’s 24-Hour Nitrate Network generates publicly available water quality data on nitrate levels in our surface water.
Mike Hirst Mike Hirst lives in northwest Minnesota, near the border between the U.S. and Canada. Like many locals, Mike likes to fish on Lake of the Woods, which…
Application forms and instructions for applying for wastewater permits.
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 MPCA developed the Wastewater Nitrogen Reduction and Implementation Strategy to decrease the wastewater sector’s nitrogen loads for the protection and restoration of bodies of water in and downstream of Minnesota.
Minnesota's large rivers — the Mississippi, Minnesota, Rainy, Red, and St. Croix — are prized for recreation, and serve as water supplies and engines of commerce. They also connect us to other states…
The MPCA's regulatory, cleanup, and monitoring programs create and maintain spatial data that serve our environmental protection work and can be shared with partners and researchers.
An index of biological integrity (IBI) is a particularly powerful tool that provides an accurate measure of the condition of the biological communities and are a direct determinant of the attainment of aquatic life uses.