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An index of biological integrity (IBI) is a particularly powerful tool that provides an accurate measure of the condition of the biological communities and are a direct determinant of the attainment of aquatic life uses.
Karst near Oxbow Park and Zollman Zoo, host of the We Are Water MN traveling exhibit. Phil George, who lives in rural Byron, Minnesota, has always felt a deep…
The MPCA has released the draft 2025 Minnesota Nutrient Reduction Strategy for public review and comment.
The AQI was developed to provide a simple, uniform way to report daily air quality conditions.
MPCA is opening the rule that regulates about 17,000 animal feedlots.
The MPCA is committed to engaging broadly with the public and ensuring that residents affected by its decisions have a voice in its processes.
We come from the stars Nibi Walks: A prayer for the water
Public input is critical to the work that we do. We invite that input by soliciting comments on agency decisions, holding public informational meetings, and more.
The Clean Water Council was created to advise the Legislature and the Governor on the administration and implementation of the 2006 Clean Water Legacy Act
A water quality variance is a temporary change in a state's water quality standard for a specific pollutant and its relevant criteria, allowing deviation from meeting a water quality-based effluent limit for a particular discharger.
The MPCA has important roles in protecting and restoring waters in degraded conditions.
The MPCA studies, monitors, and regulates water pollutants to protect human health and the environment. Minnesota water quality standards strives to protect water for use, measures health of waters, and guides limits on what regulated facilities can discharge to surface waters.
The MPCA studies, monitors, and regulates numerous water pollutants to protect human health and the environment. At the state level, three agencies share the monitoring and control of pollutants:…
Standard operating procedures (SOPs) reflect how agency staff and contracted partners complete agency-funded field activities.
Protecting and restoring water quality is one of the MPCA's core areas of focus.
Clean Water Fund dollars come from the Clean Water, Land and Legacy Amendment that Minnesotans approved in 2008.
State agencies, counties, municipalities, nonprofit organizations, and many others are engaged in protecting Minnesota lakes.
Under the federal Clean Water Act, states must designate beneficial uses for all waters and develop water quality standards to protect each use.
The MPCA plans to amend Minnesota Rules chapter 7050, which establishes beneficial uses and water quality standards to protect those uses, and designates where the uses occur in waters of the state.
The MPCA 401 certification fills a unique niche in protecting water quality by applying state water quality standards to projects.