At 2:00 p.m. on November 28, 2017, Employee #1 and a coworker were looking for drainage valves at a mine water treatment pond facility. Employee #1 went down a ladder into a manhole next to one of the ponds to look for the valve. Employee#1 fell off of the ladder as soon as his head got to ground level. He fell into the bottom of the twelve-foot deep manhole and collapsed against a wall.
