Commercial fire alarm on 6th Street Heard on: San Bernardino County CA Fire Dispatch 00:11 Commercial fire alarm, medic engine 174, investigator 2150, 9810, 6th Street between Archibald Avenue and Lucas Ranch Road. Transcript This transcript is auto-generated from live dispatch audio and may be incomplete or inaccurate. It is not an official report and may change. Commercial fire alarm, medic engine 174, investigator 2150, 9810, 6th Street between Archibald Avenue and Lucas Ranch Road. 2026-10-22 07:53 UTC Fire 6th St, Rancho Cucamonga, CA 91730 View on map