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Addressing excess nutrient levels in Lake Pepin based on the site-specific water quality eutrophication criteria for the lake developed by the MPCA.

Details on sampling and monitoring requirements of your industrial stormwater permit.

The MPCA administers programs that are governed by 45 chapters of rules. The MPCA periodically conducts a “housekeeping” rulemaking to make minor corrections and clarifications to the rules or to repeal rules that have become obsolete.

Investments in electric vehicle charging stations around Minnesota.

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.

When temperatures climb and the summer sun beats down, conditions are ripe for Minnesota lakes to produce harmful algae blooms, some of which can be harmful to pets and humans.

In Minnesota, about 18,000 regulated underground storage tanks (UST) are in use. State rules specify requirements for underground storage tanks (UST) that store petroleum or hazardous substances, and any piping or other structures that are part of the tank systems.

MPCA's fish sampling process and why we do it

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.

Ready-to-run meteorological data suitable for AERMOD.