150818-HD670-101 FORT HUNTER LIGGETT, Calif. (August 18, 2015) – Utilitiesman 1st Class Glenn Jackson and Utilitiesman Constructionman Robert Douglas, both assigned to Naval Mobile Construction Battalion (NMCB) 4, communicate steps for water well drilling during training. The goal of the training is to drill a well at 600ft in order to produce 45 gallons per minute utilizing three, six-man crews to cover around the clock operation. NMCB 4 is currently homeported in Port Hueneme, Calif., in a training cycle in preparation for their upcoming 2016 deployment. (U.S. Navy photo by Utilitiesman 3rd Class Stephen Sisler/Released)