Minnesota MPCA Earth Day Water Quality Improvements Scale Up

News release

April 22, 2026

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MPCA communications, news.mpca@state.mn.us

Earth Day: Cleaner water takes root across Minnesota

Solutions scale up statewide from farm fields to city streets and streams

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.

"Minnesotans want clean water, strong trout fishing, and access to the outdoors," said Katrina Kessler, commissioner of the Minnesota Pollution Control Agency. "We're seeing results. It's working, and the projects are growing. What we do upstream matters downstream."

Across the watershed of the Red River of the North, farmers in Minnesota and North Dakota are improving water quality. Cover crops, crop rotation, and reduced tillage keep living roots in the ground, hold soil in place, and reduce phosphorus flowing north to Lake Winnipeg.

This effort is accelerating: It started in 2024 and is on track to top 330,000 acres in 2026.

"Farmers are scaling  up solutions that work," said Minnesota Agriculture Commissioner Thom Peterson. "Healthy soil keeps nutrients out of rivers and helps producers handle weather extremes. These practices store carbon in the soil, reduce greenhouse gas emissions, and improve yields. Farmers are building for the future while helping Minnesota reach our climate goals."

Duluth protects trout, prepares for heavier rainfall

"Strengthening nutrient reduction isn't about a single fix. There is no silver bullet," said Carl Rosen, University of Minnesota researcher. "It's about better field management before, during, and after the growing season, targeted conservation, and measurable impacts scaled across millions of acres."

In Duluth, a road project by Hartley Park doubled as a water-quality upgrade. Crews added green infrastructure to treat stormwater before it reaches Tischer Creek, a coldwater trout stream that flows into Lake Superior.

The system will capture an estimated 22,000 pounds of sediment along with nitrogen and phosphorus each year while handling heavier rains.

"This is a win for the community," said Tom Johnson, senior engineer with the City of Duluth. "We're improving infrastructure and protecting a trout stream at the same time."

"Preparing for heavier rainfall by storing more water on land is a statewide priority," said John Jaschke of the Minnesota Board of Water and Soil Resources.

Less nutrients in the Mississippi River

In southern Minnesota, farmers are delivering results to the Mississippi River. Cover crops on tiled fields are cutting nitrate loss, storing carbon, and improving habitat in streams like Rice Creek in the Cannon River Watershed.

Water monitoring in the Cannon River Watershed from 2019 to 2025 shows 27% less nitrate in tile drainage where cover crops are used. Trout numbers are increasing. Pollution-sensitive insects are returning.

These efforts align with Minnesota's Nutrient Reduction Strategy released in early 2026, which guides work to cut excess nitrogen and phosphorus statewide.

"Water leaving Minnesota now carries 32% less phosphorus and 6% less nitrogen to the Gulf," Glenn Skuta, MPCA's watershed division director, said. "These projects add up to positive results."

Minnesota's Clean Water Fund: A key resource

Projects like Hartley Park and Rice Creek are supported by the Clean Water Fund, through the Clean Water, Land and Legacy Amendment, which provides dedicated funding for water-quality work statewide, Skuta said.

"Minnesota is making progress by targeting the right places and building partnerships," said University of Minnesota economist Jeff Peterson. "That helps farmers adopt practices that work for water quality and their bottom line."

Cleaner water starts upstream. Together, these efforts show how practical, locally led actions from farm fields to city parks can reduce nutrient pollution, build climate resilience, and protect the waters people downstream depend on.

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