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Information about the work to clean up the pollution from over 100 years of unregulated development and industrial practices.
Permit applications must include detailed emissions calculations to help determine which permit type or permit amendment is needed.
Chloride is a problem for wastewater facilities and stormwater permittees.
How to prepare recycling for the curb
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.
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 in…
Per- and polyfluoroalkyl substances (PFAS) are a group of thousands of human-made chemicals that do not break down over time. PFAS are sometimes called “forever chemicals” due to their extreme…
The MPCA is collaborating with many federal, Tribal, state, and local partners to clean up contaminated sites in the Duluth harbor and St. Louis River.
James Wooton puts his scuba diving skills to work monitoring for aquatic invasive species in Otter Tail County lakes.
Findings underscore need to reduce use of “forever chemicals”
The MPCA uses the EQuIS database to store and manage monitoring data and associated laboratory results from streams, lakes, groundwater, ambient air, soil, sediment, and gas, collected through MPCA programs and partnerships.
Facilities that produce air emissions can benefit by proposing limits on their own operations to avoid certain types of regulatory requirements. You might accept limits to stay under emission…
Water quality trades that have been arranged in Minnesota illustrate many opportunities to enhance pollution reduction efforts while offering flexibility and cost savings to regulated municipalities and industries.
Answers to common questions about the Construction Stormwater Permit application
The StormReady designation recognizes the MPCA’s commitment to emergency management planning and continuity of operations during an emergency.
MPCA’s community air monitoring pilot grant program will provide $4.85 million to build more networks of community air sensors in the Twin Cities metro area.
The Rainy River - Headwaters Watershed covers nearly 1.9 million acres, starting in northern Cook and Lake Counties and flowing west/northwesterly into St. Louis County and the Canadian border waters.
Minnesota passed a law in 2023 that restricts the use of lead and cadmium in 15 categories of consumer products, including toys and school supplies.
Kohlman Lake, one of 27 bodies of water to come off the impaired waters list this year, did so with substantial help from the Clean Water Fund.
Question and answer session with Addison Otto, a rule coordinator with the MPCA, about her work with the agency and how her hobby farm informs her work.