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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 Cloquet River Watershed covers approximately 507,858 acres (794 square miles) and is located within portions of Lake and St. Louis Counties in northeastern Minnesota.

Addressing excess nutrient levels in Lake Pepin based on the site-specific water quality eutrophication criteria for the lake developed by the MPCA.

Heavy metals are an ill-defined group of inorganic chemical hazards that include lead, chromium, arsenic, and cadmium. They may leach into soil and water from industrial sites, mines or…

Underground storage tank (UST) facilities must designate owners, operators, or employees as Class A, Class B, and Class C operators.

The Southern Minnesota Beet Sugar Cooperative emitted higher levels of hydrogen sulfide than allowed from its Renville facility, resulting in a $1.15 million fine following an MPCA investigation.

U.S. Steel Corp. operates the Minntac Taconite processing facility near the city of Mountain Iron, where it produces taconite pellets that are shipped for use at steel mills. U.S. Steel has applied for a reissued air permit so it can replace existing emissions controls in its pellet plant with cartridge filters.

Thermal paper is thin with a slick feel or sheen finish and discolors easily when scratched.

Image Stormwater has an enormous impact on water quality in Minnesota, whether it's runoff from farm fields or from urban hardscapes. Rain and snow…

Carba, a Minnesota-based company focused on carbon-capture technology, took home the MPCA’s Green and Sustainable Chemistry Prize at the 2023 MN Cup

In most of Minnesota’s livestock-dense counties, feedlot oversight is a cooperative effort between the MPCA and county government.

Minnesota is the first state to require producers fund boat wrap collection and recycling.

The MPCA studies, monitors, and regulates many land pollutants that affect the quality of life in Minnesota and the health of residents.

Excess phosphorus is harming Minnesota waters. Phosphorus comes from both regulated and non-regulated sources. A quarter of Minnesota lakes have high levels of phosphorus, which means that they do…

Plastic can be recycled, but it’s often not, a situation the MPCA aims to resolve with grants to develop markets for recycled plastic.

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.

Properly trained and certified SSTS personnel are critical. What work duties can local program staff do before becoming certified, and how can that process be expedited?

The MPCA is offering rebates to small businesses across the state to buy and sell lead-free fishing tackle, part of the state’s Get the Lead Out program

The MPCA 401 certification fills a unique niche in protecting water quality by applying state water quality standards to projects.

Septic tanks must be registered in Minnesota to ensure they are watertight and have adequate structural integrity.