The Minnesota Department of Natural Resources has issued its annual ice safety warning for lakes with winter aeration systems.

The updated list of aerated lakes and more information is available on the DNR website.

The DNR permits aeration systems to help prevent winterkill of fish populations by adding oxygen to the lake and, in certain situations, to protect shorelines and structures from ice damage. They are generally operated from the time the lakes freeze until the ice breaks up in the spring. 

A permit from the DNR is required to install and operate an aeration system.