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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.
When leaves fall on streets, sidewalks, and other hardscapes in urban areas, they wash into the storm drains and end up in lakes and rivers where they feed algae growth. The algae then decomposes and uses up oxygen that fish and native plants need.
Cleaner water is taking hold across Minnesota this Earth Day as farmers and communities scale up solutions that protect rivers, strengthen soil, and build resilience from headwaters to downstream lakes.
The MPCA’s Smart Salting program helps cut down on chloride pollution by training snowplow drivers and municipalities to use less salt on the roadways.
A stormwater system upgrade in Duluth was expanded with the help of an MPCA employee who tapped into available funding. It protects Lake Superior and can serve as an example for other cities and counties.
MPCA awards $2.4 million to eight organizations for projects focused on sustainable building and materials management strategies that reduce waste and increase deconstruction, salvage, and reuse in Minnesota.
Volunteer-collected data are regularly used in decision-making and conservation efforts. Find a program that excites you and join in.
Excess phosphorus is harming Minnesota waters. Phosphorus comes from both regulated and non-regulated sources. A quarter of Minnesota lakes have high levels of phosphorus, which means that they do…
Designing stormwater systems to handle the challenges of climate change differs in every community across the state. Here’s how one community is meeting that challenge
Spilled mercury, even small quantities in the home, should be cleaned up quickly and properly so that people don't come in contact with it or breathe its vapors.
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 completed 75 enforcement cases for water quality, air quality, waste, stormwater, and wastewater violations in the second half of 2024.
Kate Knuth's career in addressing climate change, which took her to the Minnesota Capitol as a state legislator, has now led her to the MPCA as its new climate director.
Permits for wastewater treatment require monthly, quarterly, or annual reporting of discharge monitoring results
Important details to help make your e-Service submittal go as smoothly as possible.
To make electric school buses more affordable to school districts, the MPCA started a grant program that puts more of the cleaner buses on routes across the state.
The MPCA has announced 13 grant recipients that will receive a total of nearly $4.8 million for projects that will keep good food from going to waste in Minnesota while diverting usable food to people in need.
MPCA’s community air monitoring pilot grant program will provide $4.85 million to build more networks of community air sensors in the Twin Cities metro area.
The Mississippi River - Lake Pepin Watershed includes 205,747 acres that drain several small, coldwater streams in bedrock-dominated bluff country.
From January through March 2025, MPCA air monitoring data showed elevated lead levels that exceeded national ambient air quality standards near the facility. An MPCA inspection of Gopher Resource in spring 2025 confirmed that the source of the elevated lead levels was addressed.