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The kind of permit a facility needs depends on how much air pollution the facility could emit based on its equipment or processes.

This long-term data gathering initiative helps track trends in water bodies around the state. The MPCA is grateful for every volunteer who has dedicated time to monitoring their favorite lake or stream.

The MPCA's chloride reduction program assists communities and organizations across Minnesota in identifying sources of chloride.

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.

This page provides assistance for local units of government with development and implementation of their SSTS program.

A training and certification program for evaluating aquatic life in Minnesota’s rivers and streams.

Help your school get a recycling program organized and operating successfully.

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

We come from the stars Nibi Walks: A prayer for the water

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

Permits help the MPCA protect the environment.

Protecting and restoring water quality is one of the MPCA's core areas of focus.

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.

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

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

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…

Southeastern Minnesota is characterized by an unusual type of geography called karst, where the distinction between groundwater and surface water is blurry.

The MPCA is authorized to develop numeric water quality criteria that apply specifically to a water body or region where the pollutant is found, using data from that water body or region.

The MPCA monitors and assesses lakes around the state to determine if they meet water quality standards.

Guidance and recommendations for local officials dealing with public health issues related to blue-green algae.