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Answers to common questions about the Construction Stormwater Permit application

Tools to help small businesses determine if they need an air emissions permit and/or track compliance with their current air emissions permit.

The Rainy River - Headwaters Watershed covers nearly 1.9 million acres, starting in northern Cook and Lake Counties and flowing west/northwesterly into St. Louis County and the Canadian border waters.

Question and answer session with Addison Otto, a rule coordinator with the MPCA, about her work with the agency and how her hobby farm informs her work.

Across the state, water softeners contribute significantly to chloride pollution. Here’s how to make sure your water softener isn’t sending excess salt into the environment

Resources and best management practices to help protect water quality on construction sites.

A gateway to common regulatory information that affects stationary engines.

The chemical 1,4-dioxane, a likely carcinogen, was detected in a private residential well in the Eastbrook Terrace area in Andover.

Complying with the MS4 general permit

To reduce contamination at compost facilities, Minnesota’s compostable product labeling law requires all bags, packaging, and food service products labeled as “compostable” and sold in Minnesota after Jan. 1, 2025, to meet certain requirements.

Some pollutants attach to suspended particles in the water and subsequently settle out to the bottom sediment. At elevated concentrations, contaminated sediments can contribute to fish…

A cumulative impacts analysis provides a comprehensive look at all burdens that affect a community or neighborhood.

The MPCA provides financial and technical assistance to local government and other water resource managers to address nonpoint-source water pollution.

The PFAS guidance document uses an evidence-based approach that builds upon the framework and strategies presented in previous MPCA publications.

The discharges in summer 2024 happened during the construction of the MnDOT truck facility in Eden Prairie, Minnesota.

This training program focuses on the implementation of best management practices for lawn/turf care maintenance.

Smart Salting is a suite of techniques that minimize the environmental and economic impacts of chloride while still meeting public needs.

Advising farmers about seeds, fertilizers, and other decisions, crop consultants have potential to promote sustainable practices to benefit water and soil health, and impact climate change.

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.

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