Water treatment facility protects the environment
U.S. Air Force Airman 1st Class Joseph Dickerson, 52nd Civil Engineer Squadron water and fuel system maintenance technician from Oklahoma City, Okla., extracts a portion of a wastewater sample at Spangdahlem Air Base, Germany, June 4, 2014. Airmen add a chemical oxygen demand reagent to the extracted sample to cause a chemical reaction that can be analyzed by testing equipment to ensure the proper levels are followed under German law. (U.S. Air Force photo by Senior Airman Gustavo Castillo/Released)

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Photo by: Senior Airman Gustavo CastilloReleased  |  VIRIN: 140604-F-VI983-021.JPG