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Under the federal Clean Water Act, states must designate beneficial uses for all waters and develop water quality standards to protect each use.
Where possible, permit holders must use MPCA's e-Services to apply for reissuance and administrative amendments.
Hutchinson Utilities exceeded its permit limit for particulate matter during an air quality performance test. High levels of particulates are known to cause environmental harm and health problems.
Environmental information and permits that affect grain elevators, feed mills and fertilizer mixing plants.
A gateway to common regulatory information that affects stationary engines.
U.S. Steel Corp. operates a taconite mine and processing plant known as Keetac north of Keewatin, where it produces taconite pellets for use at iron and steel mills.
Installing an engineNo permit amendments are needed for holders of registration (Options C and D), capped, and general permits (state or Part 70) to install a non-emergency engine, if the total…
Learn about environmental regulations that may apply to your business. It is not an exhaustive list, so other regulations may apply.
In rules, an incorporation by reference states that the contents of another document are part of the rule, even though the text of the referenced document does not appear in the rule itself.
The St. Louis River Mercury TMDL will determine mercury reductions needed for lakes and rivers in the St. Louis River watershed.
MPCA established a network of long-term biological monitoring stations that represent a variety of stream types in their most natural condition.
An index of biological integrity (IBI) is a particularly powerful tool that provides an accurate measure of the condition of the biological communities and are a direct determinant of the attainment of aquatic life uses.
MPCA's leadership team.
Trichloroethylene (TCE) is a man-made chemical commonly found in wood finishes, glues and adhesives, paint or paint removers, and spot and metal cleaners. Exposure can have significant effects…
Ask the MPCA features questions Minnesotans have asked us, on the issues the agency works on, from waste disposal, water and air quality, and chemicals in products to recycling and reuse,…
Chemicals in the air toxics emission inventory.
The MPCA provides educational information about the status of Minnesota’s air, water, land, and climate and can point you toward beneficial actions you can take as students, teachers, and life-long learners interested in Minnesota’s sustainable future.
PolyMet Mining plans to develop a mine and processing plant to extract copper, nickel, and precious metals.
The Minnesota Pollution Control Agency has developed a draft air permit for MagIron LLC in Coleraine that will require a fugitive dust control plan to help reduce emissions of particulate matter from roads, storage, stockpiles, and exposed mining areas.
The U.S. EPA approved Minnesota's Statewide Mercury Total Maximum Daily Load study in March 2007.