Marine Corps Lance Cpl. Rodrigo Ramos, left, supervises Lance Cpl. Chance Rogers, center, and Lance Cpl. Nicholas Kozlik taking fuel samples from a fuel pipeline at Marine Corps Air Station Camp Pendleton, California, Sept. 7, 2018. Ramos, Rogers and Kozlik are bulk fuel specialists assigned to Headquarters Squadron, Marine Corps Air Station. After taking samples, the Marines took the fuel to a lab to ensure that it is not contaminated, it is then stored for later review in case of aircraft malfunction. Marine Corps photo by Lance Cpl. Drake Nickels