EE WAS CHANGING OIL IN COAL REFUSE SCREEN EXCITERS ON REGULAR MAINTENANCE. HE WAS TRYING TO LIFT THE USED OIL OUT OF THE SCREEN WHEN HE FELT A SHARP SEVERE PAIN IN HIS LOWER BACK. TAKEN TO HOSPITAL, X-RAYS NEGATIVE & NO DIAGNOSIS COULD BE GIVEN. 10/15 MRI RESULTS SHOWED 2 HERNIATED DISCS & 1 BULGING DISC. SAFETY WAS NOTIFIED OF MRI RESULTS ON 10/21/2005