Minn. Stat. § 103I.113

The provisions of this chapter do not apply to mining activities within a mining area described in a permit to mine issued under section 93.481 except a well or boring from which water is withdrawn. The provisions of this chapter do not apply to borings made within an area for which a conditional use permit for kaolin clay extraction has been obtained from the appropriate permitting authority when the kaolin clay extraction activity will remove all of the materials in which the borings occurred except a well or boring from which water is withdrawn.