EE WAS WALKING TOWARD THE SECTION TAILPIECE AT THE TIME OF THIS INCIDENT. HE STATED THAT THE MINE FLOOR WAS WET. HE WAS WALKING AROUND THE WATER PUMP WHEN HE FELT A POP IN HIS KNEE AND HE FELL TO THE GROUND. HE IS NOT SURE IF HE STEPPED ON A WATER LINE OR JUST WET UNEVEN MINE FLOOR.