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While hundreds of fish kills occur in Minnesota every year, mostly in lakes and ponds, fish kills on trout streams in southeast Minnesota are much less common.
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
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
What consumers should know about new Minnesota laws prohibiting PFAS in consumer products and the MPCA’s efforts to minimize PFAS pollution by keeping it out of commonly used household products.
What to consider when cold weather has you looking into home weatherization projects
Environmental information and resources for the automotive industry
Environmental information and resources for the aggregate industry.
To make electric school buses more affordable to school districts, the MPCA started a grant program that puts more of the cleaner buses on routes across the state.
In Minnesota, wastewater treatment operators must be certified to ensure that facilities meet operational requirements.
The MPCA closed 118 enforcement cases for water quality, air quality, waste, stormwater, and wastewater violations in the second half of 2023.
The MPCA recognized 236 wastewater facilities for outstanding operations in 2024.
Environmental information and permits that affect grain elevators, feed mills and fertilizer mixing plants.
MPCA recognized 253 municipal and industrial wastewater treatment plants for outstanding operations in 2023.
Frequently asked questions about SSTS certification and licensing.
Information for cannabis growers and processors to understand environmental regulations and permits that may apply to their businesses.
From January through March 2025, MPCA air monitoring data showed elevated lead levels that exceeded national ambient air quality standards near the facility. An MPCA inspection of Gopher Resource in spring 2025 confirmed that the source of the elevated lead levels was addressed.