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Mercury

Mercury is a naturally occurring element that is toxic to humans and animals. At room temperature, mercury is a silvery, liquid metal, but it can also evaporate and become airborne. Mercury does not…

Here, fishy, fishy: What counting fish can reveal about stream health

MPCA's fish sampling process and why we do it

To counter climate change-related flooding, communities across Minnesota get creative

Designing stormwater systems to handle the challenges of climate change differs in every community across the state. Here’s how one community is meeting that challenge

Steps to construction

Owners/operators of construction activity must complete several steps before completing a permit application and beginning construction. These steps also help owners/operators determine their eligibility for coverage under the general permit.

Water quality variances

A water quality variance is a temporary change in a state's water quality standard for a specific pollutant and its relevant criteria, allowing deviation from meeting a water quality-based effluent limit for a particular discharger.

AERMOD-ready meteorological data

Ready-to-run meteorological data suitable for AERMOD.

Closed: High-emitting vehicle repair grant

The MPCA sought applications from contractors to partner with auto repair shops, dealerships, tech colleges or other entities to identify and fix high-emitting vehicles.