INJURED STATED THAT ON 5-15-02 HE WAS MUCKING ON THE BELTLINE & HIS BACK STARTED HURTING. HIS FIRST DAY OFF DUE TO THE INJURY WAS ON 7-11-02. THE DATE OF INJURY WAS DISCOVERED BY COMPANY ON 7- 18-02 WHEN INJURED WENT TO THE OFFICE & FILE AN ACCIDENT REPORT.