The 2024 Draft Impaired Waters List prepared by the Minnesota Pollution Control Agency includes 6,345 instances of impairments; note that a water body can have one or more impairments. In the 2024 draft, 222 additional pollutants or stressors instances were identified in Minnesota waters, while 27 were removed.
As required by the federal Clean Water Act, the Minnesota Pollution Control Agency (MPCA) assesses all waters of the state and creates a list of impaired waters every two years. This list includes waters that fail to meet water quality standards and uphold that water body’s designated use.
The 2024 Draft Impaired Waters List includes 6,345 instances of impairments; note that a water body can have one or more impairments. In the 2024 draft, 222 additional pollutants or stressors instances were identified in Minnesota waters, while 27 were removed.
Summary information along with a chart of pollutants and stressors can be seen here. The full Draft 2024 Impaired Waters List is available in Excel format along with much more on MPCA’s Impaired Waters List page.
You also may find interesting insights in the MPCA’s Report to Congress dated November 2023 including special state concerns and recommendations regarding Endocrine active chemicals (EAC’s) and Per- and polyfluoroalkyl substances (PFA’s).