Domingo Duran, Assistant Fire Chief, MCLBB Fire and Emergency Services Division, reports simulated rail tanker car gas leak during Exercise Haber Rail aboard Marine Corps Logistics Base Barstow, Calif., March 19. - Domingo Duran, Assistant Fire Chief, MCLBB Fire and Emergency Services Division, reports simulated rail tanker car gas leak during Exercise Haber Rail aboard Marine Corps Logistics Base Barstow, Calif., March 19.