THE EE REPORTED WHILE DRAGGING A WATER HOSE BACK TOITS HANGER IN THE SOUTH END OF THE MILL BASEMENT NEAR THE ROD MILL DISCHARGE. HE STEPPED INTO A 12"" DIAMETER BY 6"" DEEP HOLE IN THE CONCRETE. HE SPRAINED HIS KNEE AND FELL TO THE FLOOR ON HIS LEFT SHOULDERT. THE EE SAW DR. ON 10-12-01. THE EE BEGAN PHYSICAL THERAPY ON 10-17-01, TWO TIMES A WEEK FOR THREE WEEKS.