Fire alarm reset at college building Heard on: Los Angeles County CA Fire Dispatch ยท Countywide Dispatch 00:07 00:00 Engine 146, Fire Alarm with Reset, Mount San Antonio College, 1100 Grand Avenue, 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. 00:00 Engine 146, Fire Alarm with Reset, Mount San Antonio College, 1100 Grand Avenue, 00:06 Building (number withheld). 2026-11-03 03:59 UTC Fire N Grand Ave, Walnut, CA 91789 View on map