State environmental geologist Kris Roberts said the 20,600-barrel spill, among the largest recorded in the state, was discovered on Sept. 29 by a farmer harvesting wheat about nine miles south of Tioga.
“The farmer was harvesting his wheat and started smelling oil,” Roberts said. “It went from there.”
Mpls StarTribune has the story:https://www.startribune.com/business/227257911.html