Dennis Daugaard, Governor of South Dakota, speaks at a ceremony for the opening of the Box Elder Regional Wastewater Treatment Facility in Box Elder, S.D., Sept. 11, 2014. The state-of-the-art treatment plant runs wastewater through a variety of systems to produce fresh water using ultraviolet light rather than chlorine during the final stage of treatment. (U.S. Air Force photo by Senior Airman Hailey R. Staker/Released)