MADISON, Wis. (AP) -- The state Department of Natural Resources is investigating a spill at a Jackson County frac sand mine.
The Wisconsin State Journal reports the spill occurred Saturday at the 670-acre Wisconsin Proppants Hixton mine in the town of Curran northwest of Black River Falls.
Town Chairman Dwight Swenson says he saw signs of a spill Saturday morning on Curran Coulee Creek and notified the DNR. He took photos of orange-colored water in the creek and about 2 miles downstream where the creek enters the Trempealeau River.
DNR spokesman Andrew Savagian says it's unclear what sort of material was released or how much. Investigators took water samples Tuesday and planned to return to the site Wednesday.
Plant manager Hamilton White referred questions to the DNR, saying he wasn't at liberty to comment.