A sprinkler head prepares to activate on Laughlin Air Force Base, Texas, April 29, 2013. To conserve water, the 47th Civil Engineer Squadron began to only irrigate the priority roads on base. The base's water coverage was decreased from 300 to 60 acres, saving the base thousands of dollars each year. (U.S. Air Force photo/Airman 1st Class Jimmie D. Pike)