EE WAS ADDING HYDRAULIC FLUID TO THE LOADER. HE PLACED THE HOSE INTO THE TANK AND TRIED TO PUMP FLUID BUT IT DID NOT WORK. HE WENT AROUND TO THE OIL STORAGE CONTAINMENT AREA, WHICH IS 14' WIDE BY 36' LONG AND 2' HIGH. HE NOTICED THE AIRLINE WAS DISCONNECTED FROM THE SUPPLY LINE LOCATED ONT HE SIDE WALL OF THE SHOP. HE THEN STEPPED ONTO THE CONTAINMENT WALL AND WALKED OUT APPROX. 10