52nd CES Airmen make water safe for the environment
SPANGDAHLEM AIR BASE, Germany – Airmen 1st Class David Gregory, left, and Andrew Herget, 52nd Civil Engineer Squadron water and fuel systems maintenance apprentices, conduct a visibility test in the clarifier tank at the water treatment facility here June 6. The facility processes wastewater from the base to remove hazardous chemicals before it is released back into the environment. (U.S. Air Force photo/Airman 1st Class Matthew B. Fredericks)