Search
The Cedar River Watershed in Minnesota encompasses 454,029 acres in Mower, Freeborn, Dodge, and Steele counties. This watershed covers prime agricultural land with many streams and drainage ditches flowing into the river.
The MPCA closed 118 enforcement cases for water quality, air quality, waste, stormwater, and wastewater violations in the second half of 2023.
Environmental information and resources for gas stations.
A training and certification program for evaluating aquatic life in Minnesota’s rivers and streams.
Dentists in Minnesota must meet federal and state requirements to limit the amount of mercury in their wastewater.
Through a certificate of need process, MPCA is offering existing landfills the opportunity to expand their existing capacity.
Determine if your facility requires an air permit and, if so, which permit type may be the best fit for your business.
A watershed is the area of land where all of the water that drains off of it goes into the same place — a river, stream or lake.
The MPCA has begun work to implement a groundbreaking new law to remedy Minnesotans’ disproportionate exposure to pollutants.
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
Tools and materials for partners and stakeholders interested in minimizing the impact of chloride on Minnesota lakes, rivers, and groundwater.
First of a series of MPCA staff profiles. Kevin Stroom conducts research on streams and has published a report about Straight River.
The Clean Water Council was created to advise the Legislature and the governor on the administration and implementation of the 2006 Clean Water Legacy Act
Superfund requires specific investigation and cleanup processes, designates parties that are legally responsible for the cleanup, and provides funds for certain types of cleanups under Minnesota’s Environmental Response and Liability Act (MERLA).
The MPCA completed 78 enforcement cases for water quality, air quality, waste, stormwater, and wastewater violations in the second half of 2025, for a total of 146 for the year.
Environmental information and permits that affect grain elevators, feed mills and fertilizer mixing plants.
Certain proposed projects — based on their nature, size, location, or other factors — must go through an environmental review before any required permits or approvals are issued.
Information about the work to clean up the pollution from over 100 years of unregulated development and industrial practices.
Air quality dispersion modeling uses a computer model to estimate air pollution concentrations from regulated facilities and other sources of pollution.
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.…