CES Airmen walk on water Published Feb. 16, 2017 By Senior Airman James L. Miller 28th Bomb Wing Public Affairs ELLSWORTH AIR FORCE BASE, S.D. -- Tech. Sgt. Teddy Wagoner, a program management non-commissioned officer in charge assigned to the 28th Civil Engineer Squadron, drills a hole through an iced over lake at the Prairie Ridge golf course, in Box Elder, S.D., Feb. 14, 2017. Drilling through the ice allows water level measurements to be taken and compared through different seasons.