Senior Airman Janiza Rivas-Murphy, 30th Civil Engineer Squadron engineering journeyman, uses an automatic level Nov. 5, 2019, at March Air Reserve Base, Calif. The 30th CES conducted over 96 hours of bivouac, or deployment condition, training to improve readiness from Nov. 4 – 8, 2019. (U.S. photo by Senior Airman Clayton Wear)