U.S. Marines and Sailors with Marine Wing Support Squadron

U.S. Marines and Sailors with Marine Wing Support Squadron 171, test for free floating chlorine at Marine Corps Air Station Iwakuni, Japan, June 12, 2019. The Marines purified approximately 80,000 gallons of water over the course of three days, validating Marine Aircraft Group 12's capabilities to provide potable water during crisis or contingency operations. (U.S. Marine Corps photo by Lance Cpl. Tyler Harmon)