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DENCO II LLC failed a stack test in April, 2024, that showed that the facility exceeded its permit limit for particulate matter by more than 170%.
The Upper Red River of the North Watershed drains an area of 371,689 acres in the Glacial Lake Agassiz Plain, while the extreme southeastern portion of the basin lies in the North Central Hardwoods ecoregion. The Red River begins its course just below Breckenridge, Minn.
MPCA investigation in 2025 found that Sheldahl Flexible Technologies submitted incorrect permit applications and failed to obtain MPCA approval prior to installing or modifying three pieces of industrial mixing equipment.
The Shell Rock River begins at Albert Lea Lake in Freeborn County in south-central Minnesota, a few miles from the Iowa border. It flows 113 miles into Iowa, where it enters the Cedar River. In Minnesota, the Shell Rock drains 246 square miles (160,000 acres), all in Freeborn County.
MPCA collects information about the sale and use of greenhouse gases with high global warming potential.
The National Crude Oil Spill Research Site near Bemidji was formed after a pipeline break released 10,000 barrels of crude oil in 1979.
The Mississippi River - Headwaters Watershed consists of 1.26 million acres (1,961 square miles) and contains the headwaters of the Mississippi River at Lake Itasca in Itasca State Park. The watershed includes parts of Becker, Beltrami, Cass, Clearwater, Hubbard and Itasca counties.
New reports from the MPCA highlight restoration investments and improved water quality while calling for continued work to address persistent challenges in southeastern Minnesota.
To best serve the needs of all Minnesotans for healthy air, sustainable lands, clean water, and a better climate, the MPCA has committed to building a diverse, equitable, and inclusive workforce that…
Use these checklists to speed review and approval of wastewater design documents
The Lower St. Croix Watershed covers 585,735 acres and is located in northwest Wisconsin and east-central Minnesota.
The Meadows Mobile Home Park discharged untreated sewage to the ground in two separate violations in 2025.
MPCA investigation in May 2024 found violations related to stormwater at three facilities.
Businesses face challenges from climate change's impacts, but they can also take steps to reduce their contributions to climate change.
Hot, sunny weather brings the possibility of air quality alerts due to ozone. But what exactly is ozone?
To ensure that every person in Minnesota has healthy air to breathe, the MPCA studies, monitors, and regulates air pollutants, primarily in three categories: criteria pollutants, air toxics, and greenhouse gases.
The Leech Lake Band of Ojibwe has hosted five MN GreenCorps members to help install solar panels and electric vehicle charges, promote food sovereignty, and more.
The Minnesota Pollution Control Agency (MPCA) today announced a new initiative to monitor water quality throughout the entire Mississippi River within Minnesota’s borders for the first time in a single year.
The MPCA works with city and county governments, watershed districts, consultants, and others on monitoring, protecting, and restoring water quality. This is a repository of guidance and technical resources for agency partners.
Helping Minnesota businesses comply with environmental rules, reduce wastes and emissions, and reduce regulatory obligations.