County Of Otter Tail issued the following announcement on Jan. 13.
Otter Tail County residents test your home for radon! Visit the Public Health Department in Fergus Falls or NY Mills and get your no-cost radon test kit. We used a test and the instructions were easy to follow-only took about 5 minutes to complete.
Now we wait a few days and mail it in. mn.gov/radon
Original source can be found here