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The MPCA uses the Environmental Quality Information System (EQuIS) to store water quality data from more than 17,000 Minnesota sampling locations.
Surface water assessment grants (SWAG) provide local organizations and citizen volunteers with funds to complete the monitoring needed to meet assessment requirements on Minnesota lakes and streams. Assessment is usually the first step in protecting or restoring surface waters.
The MPCA has developed guidance on a number of topics to assist real estate developers, environmental engineers, remediation consultants, and others in addressing brownfields and contaminated sites.…
From the days when raw sewage flowed into rivers and lakes, Minnesota’s water bodies have come a long way. However, there is still work to be done in the restoration and protection of our waters.
Environmental information and permits that affect businesses that paint, coat, or strip surfaces.
Pollutant and runoff maps and data for major watersheds; watershed monitoring and assessment reports.
The MPCA and its many partners collect a wide variety of data on environmental conditions and pollution sources.
Permits help the MPCA protect the environment. A permit sets detailed goals for specific activities, including:preventing, controlling, or cleaning up pollutionlimiting releases of…
The MPCA 401 certification fills a unique niche in protecting water quality by applying state water quality standards to projects.
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.
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 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…
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.
Ready-to-run meteorological data suitable for AERMOD.
The MPCA's regulatory, cleanup, and monitoring programs create and maintain spatial data that serve our environmental protection work and can be shared with partners and researchers.
Researchers collect samples of sediment from the bottom of Lake of the Woods in 2024. (Photo courtesy of St. Croix Watershed Research Station) After years of study…
For more than 50 years, volunteers have gathered critically important water clarity data on Minnesota lakes and streams.
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.
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.