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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…

A project to address high levels of suspended sediment in the Minnesota River and the South Metro portion of the Mississippi River.

The MPCA issued the most recent municipal stormwater general permit (MNR040000) in November 2020.

State government agencies, in collaboration with local partners, are leading trailblazing work to protect Minnesotans from per- and polyfluoroalkyl substances (PFAS) pollution.

Information for cannabis growers and processors to understand environmental regulations and permits that may apply to their businesses.

Profile on Bridging, a Twin Cities based nonprofit that keeps goods with more life out of landfills and that donates them to families in need.

Smart Salting is a suite of techniques that minimize the environmental and economic impacts of chloride while still meeting public needs.

Answers to frequently asked questions about compliance and MPCA's enforcement of environmental rules in Minnesota.

Stormwater runoff is a leading source of water pollution, and the state general permit is designed to reduce the amount of sediment and other pollutants entering state waters.

The MPCA regulates the design, construction, and operation of treatment facilities for municipal and industrial wastewater in Minnesota.

Del Zotto tanks had weep holes drilled near the bottom of tanks to drain rainwater from the tanks while they are stored to prevent freezing and they will offer a warranty to replace tanks bought with weep holes for owners of its 2,500-gallon tanks.

The MPCA is committed to engaging broadly with the public and ensuring that residents affected by its decisions have a voice in its processes.

The MPCA issued a new air quality permit for this manufacturing facility in White Bear Township.

BMPs required to manage the slurry to comply with Minnesota statute and agency rules to protect water quality.

In 2010, the MPCA began receiving public inquiries about projects to mine silica sand for use in hydraulic fracturing, or “fracking,” a drilling method used for natural gas and oil wells.

Minnesota has a growing salty water problem that threatens its freshwater fish and other aquatic life. Chloride from both de-icing salt and water softener salt gets into lakes and streams, and…

Any facility that emits air pollutants above certain levels is required to have an air quality permit.

There are two types of federal air regulations, the National Emission Standards for Hazardous Air Pollutants (NESHAPs) and New Source Performance Standards (NSPSs). Either or both regulations may…

Groundwater is the source of drinking water for about 75% of all Minnesotans and provides almost all of the water used to irrigate crops. Its purity and availability is critical to the health of the state.

An air emission permit is a legal document that describes how a facility must operate to meet state and federal air regulations, and to minimize the impact of air emissions on people and the…