Eielson's waste water treatment plant

U.S. Air Force Airman 1st Class Jacob Hull, a 354th Civil Engineer Squadron waste water plant operator, pours water into a vial Oct. 19, 2017, at Eielson Air Force Base, Alaska. Waste water can be hazardous to the environment, but once it is processed through the plant it becomes safe to release without the risk of causing harm. (U.S. Air Force photo by Airman 1st Class Eric M. Fisher)

U.S. Air Force Airman 1st Class Jacob Hull, a 354th Civil Engineer Squadron waste water plant operator, records gauge readings on a clipboard Oct. 19, 2017, at Eielson Air Force Base, Alaska. Hull reads and records water pressure levels throughout the plant to ensure the equipment is working properly. (U.S. Air Force photo by Airman 1st Class Eric M. Fisher)

U.S. Air Force Airman 1st Class Jacob Hull, a 354th Civil Engineer Squadron waste water plant operator, records gauge readings on a clipboard Oct. 19, 2017, at Eielson Air Force Base, Alaska. Hull read and recorded temperature and pressure gauges in the plant to ensure the equipment is working properly. (U.S. Air Force photo by Airman 1st Class Eric M. Fisher)

Beakers of pH buffer solution sit on a paper towel Oct. 19, 2017, at Eielson Air Force Base, Alaska. The pH buffer solution calibrates the equipment used to test water samples at the waste water plant. (U.S. Air Force photo by Airman 1st Class Eric M. Fisher)

U.S. Air Force Airman 1st Class Jacob Hull, a 354th Civil Engineer Squadron waste water plant operator, poses for a photo Oct. 19, 2017, at Eielson Air Force Base, Alaska. Eielson’s waste water plant is one of five in the Air Force. (U.S. Air Force photo by Airman 1st Class Eric M. Fisher)

U.S. Air Force Airman 1st Class Jacob Hull, a 354th Civil Engineer Squadron waste water plant operator, gathers water for testing Oct. 19, 2017, at Eielson Air Force Base, Alaska. Waste water plant operators conduct tests three times daily to check water for its pH levels. (U.S. Air Force photo by Airman 1st Class Eric M. Fisher)