EE WAS OPERATING A WATER TRUCK. HE WAS THEN TOLD TO HAUL OVERBURDEN MATERIAL. AT APPROX 11:45 A.M. HE WAS TOLD TO OPERATE THE WATER TRUCK THROUGH THE DINNER PERIOD & REMAINDER OF THE DAY. HE D ROVE HIS PERSONAL VEHICLE, A JEEP WRANGLER, TO THE WATER TRUCK. AS HE WAS GETTING OUT OF JEEP HE FELL STRIKING HIS HEAD ON THE GROUND. HE WAS UNCONSCIOUS BREIF PERIOD AND TAKEN TO HOSPITAL.