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State agencies, counties, municipalities, nonprofit organizations, and many others are engaged in protecting Minnesota lakes.

What is the blue-green scum that looks like spilled paint? In lakes that are over-enriched with phosphorus and nitrogen, algae tend to prosper and create algae blooms. Blue-green algae and one type…

We come from the stars Nibi Walks: A prayer for the water Water is a relative A river provides…

The MPCA has important roles in protecting and restoring waters in degraded conditions.

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:…

The MPCA has issued a new air quality permit for Water Gremlin, a manufacturing facility in White Bear Township.

Under the federal Clean Water Act, states must designate beneficial uses for all waters and develop water quality standards to protect each use.

Clean Water Fund dollars come from the Clean Water, Land and Legacy Amendment that Minnesotans approved in 2008.

The MPCA 401 certification fills a unique niche in protecting water quality by applying state water quality standards to projects.

Minnesotans cherish their access to clean water. Protecting and restoring water quality is therefore one of the MPCA's core areas of focus. Through intensive water-quality monitoring, we protect…

Water quality trading is a market-based approach to the protection and restoration of surface waters, another tool to be used in conjunction with existing voluntary, regulatory, and financial assistance programs.

For 50 years, volunteers have gathered critically important water clarity data on Minnesota lakes and streams.