EMPLOYEE ALLEGES THAT WHILE MANEUVERING A 130LB.PORTABLE GENERATOR TO THE TAILGATE OF A PICK UP TRUCK, THE GENERATOR SLIPPED CAUSING MUSCLE STR.TO HIS BACK AND NECK. EMPLOYEES DUTIES AT THE TIME OF THE ACCIDENT WAS MONITORING WATER ELEVA-TIONS AND VOLUMES IN PIEZOMETERS OUTSIDE ACTIVE MINING.