EMPLOYEE WAS LIFTING A PUMP OUT OF A CONTINUOUS MINER WHEN HE FELT PAIN IN HIS GROIN. HE FINISHED HIS SHIFT WITHOUT ANY PROBLEM AND WORKED UNTIL THE 30TH OF JANUARY WITHOUT MISSING A SHIFT. HE SOUGHT MEDICAL ATTENTION ON JAN. 28 AT WHICH TIME HE WAS TOLD HE HAD A HERNIA AND WOULD NEED SURGERY. HE WORKED UNTIL THE DAY OF THE SURGERY - JAN. 30, 2004 (THE DAY LOST TIME BEGAN).