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The Upper Iowa River is a 156-mile-long tributary of the Mississippi River that rises in Mower County in southeastern Minnesota near the Iowa border. It then flows south through three Iowa counties before flowing into the Mississippi. It drains nearly 641,000 acres (1,005 square miles).
A program to provide sustainable, longer-term funding a select number watersheds to make measurable and visible progress.
Only a very small portion of the 1.35-million-acre Upper Big Sioux River Watershed is located in Lincoln County in western Minnesota; the vast majority is located in eastern South Dakota.
The Little Sioux River Watershed covers more than 1.8 million acres in southwestern Minnesota. Its small prairie streams flow through the southern portions of Nobles and Jackson counties and into Iowa.
MPCA rules govern how septic systems are designed, installed, and managed in Minnesota.
This watershed is located in the southeastern tip of Minnesota, known for its scenic bluffs. More than 900,000 acres drain to the Mississippi River at Reno, Minn., but only 117,000 of those acres are in Minnesota.
Within the three major watersheds that cover the Twin Cities area, there are 33 smaller watersheds managed by their own watershed district or watershed management organization.
The Big Fork River Watershed covers more than 1.3 million acres that include some of the state’s most pristine wilderness. The river flows north 165 miles from Dora Lake (45 miles northeast of Bemidji in north-central Itasca County) to the Rainy River, which forms the Minnesota-Canada border.
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.
Image Whenever feedlot construction or expansion is proposed, the MPCA or delegated county feedlot officer must be notified, even if a permit is not…
In 2009, a federal court ruled that NPDES permits were required for all biological and chemical pesticide applications that leave a residue in water when applications are made in, over, or near waters of the United States.
Pesticide NPDES Permit Steps to Compliance Step 2: submit a notice of intent
Permits help the MPCA protect the environment.
The Mississippi River - Winona Watershed covers 419,200 acres in the southeast Minnesota counties of Wabasha, Winona, and Olmsted. A majority of the watershed is cropland, with forest and grassland covering large portions as well.
Technical assistance to small, rural, and Tribal wastewater facilities
Launched in 2022, the PFAS monitoring plan lays out a path for PFAS monitoring at solid waste, wastewater, and stormwater facilities; hazardous waste landfills; facilities with air emissions; and…
Profile of Julia Dady, a volunteer water monitor for Battle Creek in Saint Paul.
The Air We Breathe report looks at public health and air quality data to gauge how air pollution is affecting our health in Minnesota.
Sulfur dioxide (SO2), a foul-smelling toxic gas, is part of a larger group of chemicals called sulfur oxides. These gases, especially SO2, are emitted by the burning of fossil fuels or other…
The Rock River watershed covers more than 1 million acres in Rock, Nobles, Pipestone and Murray counties in southwestern Minnesota. It is the largest of the four watersheds in Minnesota that are part of the Missouri River Basin, extending south into Iowa.