Hazardous duty
DOVER AIR FORCE BASE, Del. -- 512th Civil Engineer Squadron firefighters, Senior Airman Mike Gavaghan (left) and Staff Sgt. Francis Fajardo repair a valve leak on a simulated 150 pound corrosive cylinder as 512th CES firefighter, Tech Sgt. Todd Schoemeerlen, inspects their work. Hazardous material handling training was held Aug. 17 here for both the 436th CES and the 512th CES. (U.S. Air Force photo/Staff Sgt. Steve Lewis)