THE EMPLOYEE STATED HE WAS CLEANING THE LUNCH ROOM ON THE FOURTH FLOOR OF THE PLANT WHEN THE MOP BUCKET TIPPED OVER AND SPLASHED SOME DETERGENT WATER ON HIS LEG. THE EE DID NOT REPORT THIS ON THIS SHIFT. THE EMPLOYEE HAS A PRE-EXISTING CONDITION ON HIS LEG WHICH WAS IRRITATED. THE EE STARTED MISSING WORK ON 9-27-01.