Houston County is exploring a permanent ban on new frack sand mining.
Houston County commissioners have voted to extend a moratorium on new sand mining through March 2015. County commissioners are also asking state officials for guidance on how to implement a permanent prohibition.
Commissioner Justin Zmyewski says his constituents are concerned about heavy truck traffic from sand mining, as well as any environmental impact on trout streams and other natural resources.
Zmyewski tells Minnesota Public Radio Newsthat he's not sure the county, with its small tax base, will be able to raise the money needed for road repairs if truck traffic causes damage.