LAUGHLIN AIR FORCE BASE, Texas – Airman 1st Class Tyler Stoltz, a bioenvironmental engineer technician with the 47th Medical Group, completes proficiency training by testing for copper nitrate in an unknown sample here Aug. 4. Airmen from 47th Medical Group’s Bioenvironmental Engineering shop perform a multitude of duties including testing Laughlin’s drinking water to ensure its safety, performing gas mask fit tests and responding to hazardous incidents that might involve chemical, biological, radiological or nuclear substances. (U.S. Air Force photo by Airman 1st Class Sara Csurilla)
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