THREE EMPLOYEES WERE DEWINTERIZING THE PLANT USING THE JON BOAT TO DO SO. THE BOAT WAS CRANKED; IT WAS IN GEAR WITH THE THROTTLE WIDE OPEN. THE BOAT LUNGED FORWARD, EJECTING TWO EMPLOYEES INTO THE WATER. THE BOAT STRUCK THE STRIPPING BARGE &SMASHED INJURED'S THUMB OFF. THE THIRD EMPLOYEE PULLED BOTH VICTIMS OUT OF THE WATER. INJURED ALSO HAD A HAIRLINE FRACTURE TO THE LEFT WRIST.