ELECTRICIAN WAS HELPING HANG MINER CABLE AND WATER LINE. HE SAID HE PULLED SOMETHING IN HIS LOWER BACK. HE FINISHED HIS REGULAR SHIFT AND SAID HE DIDN'T NEED ANY MEDICAL ATTENTION. NEXT DAY HE WENT TO HOSPITAL BUT CONTINUED WORKING. THE DOCTOR NOW RECOMMENDS HE HAS BACK SURGERY SO AS OF 5/13/02 HE IS OFF WORK.