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The MPCA is planning new rules governing air quality. The main purpose is to adopt new rules to implement and govern regulation of facilities that emit air toxics.
A 2008 law requires the MPCA to analyze and consider “cumulative levels and effects of past and current pollution” for air permits in a specific part of south Minneapolis.
Air quality alert issued due to ozone for Tuesday, June 9, for the Twin Cities and central Minnesota
Air quality is expected to reach the orange AQI category, which is unhealthy for sensitive groups, in the Twin Cities and central Minnesota
Chrome-plating facility in St. Louis Park is the alleged source of pollution in local lakes.
The MPCA and its many partners collect a wide variety of data on environmental conditions and pollution sources.
Hot, sunny weather brings the possibility of air quality alerts due to ozone. But what exactly is ozone?
The MPCA's chloride reduction program assists communities and organizations across Minnesota in identifying sources of chloride.
The MPCA is working with the city of Minneapolis to identify sources of air pollution in North Minneapolis and find strategies to reduce emissions.
Minnesota continues to reduce industrial and transportation air pollutants that have the highest potential health risks. Investment in clean air for all Minnesotans is a top priority for the MPCA and Governor Walz.
After many years of investigation, design work and construction, the Great Lakes Legacy Act remediation projects at these sites near Duluth, Minnesota, are complete.
The northeast region of Minnesota is home to the state’s metallic mining industry. The "Iron Range" has a history of iron ore (“ferrous”) mining dating back to the late 1800s and includes the large…
Image Air quality is expected to reach the orange AQI category for much of Minnesota, which is unhealthy for sensitive groupsThe Minnesota Pollution…
The Minnesota State Implementation Plan (SIP) is focused on the six criteria air pollutants regulated by national ambient air quality standards (NAAQS): ground-level ozone, fine particles, lead, nitrogen dioxide, carbon monoxide, and sulfur dioxide.
Environmental information and permits that affect businesses using stationary engines or generators.
MPCA studies shows 75% of Minnesota lakes meet standards for recreation. Clean Water Fund dollars help answer water quality questions.
Resources for wastewater clients.
The Minnesota Pollution Control Agency (MPCA)’s draft wastewater permit for the 3M facility at Cottage Grove adds new water quality protections for the Mississippi River and improves accountability through monitoring and reporting requirements. The draft permit is one of the most rigorous in state history and mandates the removal of certain per- and polyfluoroalkyl substances (PFAS) to levels below detection.
The MPCA sought proposals from qualified responders to conduct an environmental forensics evaluation using non-targeted analysis techniques for identifying sources of non-aqueous film forming foam (non-AFFF) per- and polyfluoroalkyl substances (PFAS) contamination in water.
MPCA sought proposals from qualified responders for a contract conducting a waste characterization study evaluating the types of materials generated and discarded in Minnesota and their relative prominence in Minnesota’s waste streams.
The MPCA completed 78 enforcement cases for water quality, air quality, waste, stormwater, and wastewater violations in the second half of 2025, for a total of 146 for the year.