Staff Sgt. Paul Bauer, 9th Civil Engineer Squadron water and fuels system maintenance journeyman, oversees the trickling filter, which is used as a bio-filtration system, at the waste water facility on Beale Air Force Base, Calif., March 5, 2013. The facility safely treats waste water on Beale and provides clean drinking water. (U.S. Air Force photo by Airman 1st Class Bobby Cummings/Released)
Staff Sgt. Paul Bauer, 9th Civil Engineer Squadron water and fuels system maintenance journeyman, collects a sample of bio-solids at the waste water facility on Beale Air Force Base, Calif., March 5, 2013. The facility safely treats waste water on Beale and provides clean drinking water. (U.S. Air Force photo by Airman 1st Class Bobby Cummings/Released)
Staff Sgt. Paul Bauer, 9th Civil Engineer Squadron water and fuels system maintenance journeyman, collects a sample of bio-solids from the primary clarifier at the waste water facility on Beale Air Force Base, Calif., March 5, 2013. The facility safely treats waste water on Beale and provides clean drinking water. (U.S. Air Force photo by Airman 1st Class Bobby Cummings/Released)
Staff Sgt. Paul Bauer, 9th Civil Engineer Squadron water and fuels system maintenance journeyman, prepares to bake a sample of bio-solid in an oven set to 265 degrees Celsius at the waste water facility on Beale Air Force Base, Calif., March 5, 2013. Through this scientific process the facility is able to determine how much bacteria is being removed from the bio-solid. (U.S. Air Force photo by Airman 1st Class Bobby Cummings/Released)
Staff Sgt. Paul Bauer, 9th Civil Engineer Squadron water and fuels system maintenance journeyman, prepares to heat a sample of bio-solid in a furnace at 550 degrees Celsius at the waste water facility on Beale Air Force Base, Calif., March 5, 2013. The scientific process burns off volatile solids in the sample. (U.S. Air Force photo by Airman 1st Class Bobby Cummings/Released)
Staff Sgt. Paul Bauer, 9th Civil Engineer Squadron water and fuels system maintenance journeyman, measures the weight of a bio-solid at the waste water facility on Beale Air Force Base, Calif., March 5, 2013. The process helps determine the amount of bacteria removed from the solid. (U.S. Air Force photo by Airman 1st Class Bobby Cummings/Released)