EE CLAIMS THAT WHILE DRIVING A HAUL UNIT UP A RAMP FROM A SLURRY POND, THE LEFT REAR TIRE HIT A HOLE IN THE GROUND, CAUSING THE FRONT OF THE HAUL UNIT TO COME OFF THE GROUND AND WHEN IT CAME B ACK DOWN, HE FELT A BURNING PAIN TO HIS LOWER BACK. HE WAS SEEN BY HIS PERSONAL PHYSICAN ON 7-12-01 AND EXCUSED FROM DUTY UNTIL 7-15-01.