Aviation Boatswain's Mate (Fuel) 3rd Class Matthew Wilson, of Naval Air Facility Atsugi's Fuel Farm, prepares to test a batch of JP5 jet fuel in the facility's quality assurance laboratory. The facility routinely tests the fuel for sediment and water to insure it's safety and quality. (U.S. Navy photo by Mass Communication Specialist 1st Class Barry A. Riley/RELEASED)