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S.M. Hentges & Sons, a Jordan-based construction company, paid $13,078 for construction stormwater violations for a project in Chaska.

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.

Nearly all feedlot owners are required to register with the state and update their registration information every four years, unless they have applied for a permit recently. This page includes information about how to register.

The MPCA Brownfield Program is a fee-for-service program that provides assistance to promote the investigation, cleanup, and redevelopment of property that is contaminated with petroleum and hazardous substances.

MPCA and the Minnesota Department of Health continue to sample private residential wells, municipal wells, and non-community public wells (e.g., small businesses, churches, schools) in the East Metro area for per- and polyfluoroalkyl substances (PFAS)

Hear Josh Krenz's story about protecting water in Minnesota at We Are Water MN, a traveling exhibit and community engagement program that explores Minnesotans’ relationships with water. You can visit the exhibit from March 2 through April 24 at the Sherburne History Center in Becker, Minn.

Minnesota participates in this statistical survey of the condition of our nation's lakes, ponds, and reservoirs.

MPCA investigation found that Shearer’s Foods operated without an air permit and submitted incomplete applications during the permit process.

BNSF Railway Company paid a fine of $20,000 for industrial stormwater and wastewater permit violations at its Willmar facility.

Al-Corn Clean Fuel, LLC, an ethanol plant in Dodge County, paid $40,427 in fines for air permit violations.

To help you quickly determine whether this permit affects you, what your requirements are, and what to do next, the MPCA has developed an Applicability flow chart

This long-term data gathering initiative helps track trends in water bodies around the state. The MPCA is grateful for every volunteer who has dedicated time to monitoring their favorite lake or stream.

The health of Minnesota's large rivers is a reflection of how well we are protecting overall water quality.

Phosphorus management plans help wastewater treatment facility operators and managers evaluate pollution prevention and and management options that can reduce the amount of phosphorus discharged to Minnesota waters.

The MPCA has a variety of educational displays, programs, and materials about chloride pollution. We encourage our partners to utilize these resources to engage with their community.

What is a stormwater catch basin, and should I be worried about it?

The MPCA created a statewide inventory of streams that have been hydrologically modified: channelized, ditched, or impounded

Complying with the MS4 general permit

Carbon monoxide (CO) is a product of the incomplete combustion of carbon-based fuels—including gasoline, diesel fuel, crude oil, and wood—and other natural and synthetic products. Breathing in…

Apply for the 2025-2026 Minnesota GreenCorps program and spend a year working on environmental issues and making a difference in communities around the state.