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The Legislature has given the MPCA the authority to develop rules to protect state environmental resources.
Nitrogen management plans help operators of wastewater treatment facilities understand the inputs of nitrogen to their facilities and evaluate options that can reduce the amount of nitrogen discharged.
The St. Louis River Watershed covers 3,584 square miles at the head of the Great Lakes and represents the extreme headwaters of the St. Lawrence River.
Some facilities may have air emissions low enough to qualify as "insignificant," and not be required to have an air permit.
Minnesota state agencies are working together to reduce greenhouse gas emissions that cause climate change.
An index of biological integrity (IBI) is a particularly powerful tool that provides an accurate measure of the condition of the biological communities and are a direct determinant of the attainment of aquatic life uses.
Per- and polyfluoroalkyl substances (PFAS) are a group of thousands of human-made chemicals that do not break down over time. PFAS are sometimes called “forever chemicals” due to their extreme…
Standard operating procedures (SOPs) reflect how agency staff and contracted partners complete agency-funded field activities.
This year’s theme is Advancing Nutrient Trading with Sustainable Farming and Conservation Practices.
This year’s forum will focus on ways to reduce nitrogen in Minnesota’s water, and ways that agricultural and urban partners are working together to improve water quality.
State and community leaders visited Faribault and Northfield to observe Minnesota climate resiliency efforts in action.
Reusing and recycling materials from construction and demolition (C&D) can help address pressing disposal and contamination issues in Minnesota, and have significant economic and environmental benefits.
The chemical 1,4-dioxane, a likely carcinogen, was found in private wells near Bunker Lake Blvd. and Crosstown Blvd.
The MPCA developed the Wastewater Nitrogen Reduction and Implementation Strategy to decrease the wastewater sector’s nitrogen loads for the protection and restoration of bodies of water in and downstream of Minnesota.
The MPCA plans to amend water quality standards (Minn. Rules chapter 7050) affecting Class 2 beneficial uses, which protect surface waters for aquatic life and recreation.
The MPCA has released the draft 2025 Minnesota Nutrient Reduction Strategy for public review and comment.
The MPCA works with industry, government, and residents to reduce and manage waste.
Feedlot nutrient and manure management
MPCA rules govern how septic systems are designed, installed, and managed.
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.