EE WAS CONDUCTING A PRE-OPERATIONAL INSPECTION OF A WATER TRUCK USED FOR DUST CONTROL ON THE ROAD ADJACENT TO OUR AREA ""C"" OVERLAND CONVEYOR BELT. WHILE PEROFRMING THE INSPECTION, HE STEPPED O N UNEVEN GROUND OR SOMEHOW TWISTED HIS KNEE. ALTHOUGH IT IS BEING TREATED CONSERVATIVELY NOW, FURTHER DIAGNOSIS OR TREATMENT MAY BE NEEDED. THE EE HAS BEEN PLACE ON RESTRICTED DUTY FOR 2 WKS