Senior Airman Jordan Loveless, the Bioenvironmental Engineering special surveillance program manager assigned to the 28th Medical Operations Squadron, tests the pH of a water sample inside a lab at Ellsworth Air Force Base, S.D., Oct. 27, 2017. Airmen from BE are responsible for monitoring water quality on base monthly as well as during contingencies. (U.S. Air Force photo by Airman 1st Class Randahl J. Jenson)