Wright County approves amendment letting Twin Rivers test closer to road structures with $110,000 permit fee

Wright County supervisors voted to amend the county road-use agreement with Twin Rivers Exploration, approving a permit fee of $110,000 and allowing the company’s vibroseis seismic testing vehicles to operate as close as 25 feet from roadway structures so long as monitoring shows peak particle velocity (PPV) does not exceed 0.5 inches per second. The board’s motion passed 3–1 with one member absent.