Chuck Hand, Project Solutions Inc. manager for the base’s waste water treatment facility, watches as a step screen sorts through solids found in waste water during water treatment at Ellsworth Air Force Base, S.D., April 26, 2012. When non-soluble waste is flushed down toilets they must be processed out of the water, creating extra work for members of the waste water treatment facility. (U.S. Air Force photo by Airman 1st Class Alystria Maurer/Released)