Federal crews are keeping an eye on a fuel spill from a navy ship in B-C waters between Vancouver Island and the Lower Mainland. H-M-C-S Calgary was sailing near the Georgia Strait traffic lanes on the weekend when 30-thousand litres of fuel spilled from the vessel. Maritime Forces Pacific has launched an investigation to determine the cause of the spill, which involved F76 light naval fuel — a fuel officials say is very similar to kerosene and will readily evaporate in the marine setting. The navy says it has booms and pads ready for cleanup, but it’s likely that most of the fuel has already evaporated.