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The MPCA 401 certification fills a unique niche in protecting water quality by applying state water quality standards to projects.
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 proposes adding 46 new impaired bodies of water and removing 45 impairments from bodies of water from the IWL, the most removals in a two-year cycle since the state began the IWL program in 1992.
MPCA is opening the rule that regulates about 17,000 animal feedlots.
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…
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.
In most of Minnesota’s livestock-dense counties, feedlot oversight is a cooperative effort between the MPCA and county government.
The AQI was developed to provide a simple, uniform way to report daily air quality conditions.
In karst landscapes, the distinction between groundwater and surface water is blurry.
Climate adaptation is about developing strategies to help human and natural systems become more resilient to the effects of climate change.
The MPCA has released the draft 2025 Minnesota Nutrient Reduction Strategy for public review and comment.
The Minnesota Pollution Control Agency seeks public comment on a draft industrial wastewater permit that provides various improvements to better protect the environment and human health at Northshore Mining Co.'s taconite processing facility and tailings basin in Silver Bay, Minnesota.
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.
Minnesota water infrastructure projects in St. Cloud and Pipestone garner EPA’s top awards for innovation, excellence in protecting environment, health.
The Minnesota Pollution Control Agency (MPCA) will host a public meeting to present information and hear comments on the environmental assessment worksheet (EAW) and feedlot permit for a proposed…
Guidance and recommendations for local officials dealing with public health issues related to blue-green algae.
MPCA established a network of long-term biological monitoring stations that represent a variety of stream types in their most natural condition.
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.
For more than 50 years, volunteers have gathered critically important water clarity data on Minnesota lakes and streams.