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

MPCA issues coverage to construction site owners and their operators to prevent stormwater pollution during and after construction, and protect Minnesota's water resources.

Unsuspecting homeowners everywhere are falling victim to vampires…energy vampires! Find out how to slay these energy vampires by turning off electronic devices that keep drawing power even when they are turned off.

In October 2023, New Ulm Steel failed a noise test at its facility. New Ulm Steel was also fined for dust escaping the facility and settling on a public road.

Answers to questions frequently asked by municipalities about management of contaminated sediments in stormwater collection systems that they own and operate.

MPCA investigation found stormwater permit violations that occurred during a construction project in 2025, with sediment-laden stormwater entering a stream at a construction site in Chaska.

Helping Minnesota businesses comply with environmental rules, reduce wastes and emissions, and reduce regulatory obligations.

Information about the work to clean up the pollution from over 100 years of unregulated development and industrial practices.

Young Life Castaway Club violated several wastewater regulations, mainly modifying wastewater treatment systems without approval, between 2019 and 2022 at its youth and family camp on Pelican Lake, just south of Detroit Lakes. These violations carry serious risks of harm to the environment.

Although the impacts from Minnesota’s changing climate are touching all of us, some groups of people are more at risk.

Environmental information for craft breweries, distilleries, wineries, and cideries, and for home brewers who want to start commercial production.

Under the new EPR program, Minnesota is phasing out all product packaging sold in our state that is not refillable, reusable, recyclable, or compostable by 2032.

MPCA investigation determined Derek Vekich committed stormwater and wetland violations in 2024.

We have some suggestions for avoiding disposable items, excessive packaging, and single-use plastics when shopping for your everyday needs.

MPCA investigation in 2025 found that Sheldahl Flexible Technologies submitted incorrect permit applications and failed to obtain MPCA approval prior to installing or modifying three pieces of industrial mixing equipment.

In 2009, a federal court ruled that NPDES permits were required for all biological and chemical pesticide applications that leave a residue in water when applications are made in, over, or near waters of the United States.

In Minnesota, certain tasks in the design, installation, repair, maintenance, operation, or inspection of septic systems can only be done by certified individuals. Find out what training, experience, and exams are required to fulfill the requirements for certification.

Resources for the dry cleaning industry

Nitrogen, like phosphorus, is a nutrient that pollutes in state waters, and its concentration in many rivers has been increasing from historic natural levels over time due to human influences.…

Prevent costly sewer clogs by keeping grease out of sinks and by not flushing disposable wipes.