Commercial fire alarm at building supply store Heard on: Frederick MD Fire Dispatch Group Calls 00:48 00:00 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 00:18 Engine 281 , truck five two, Builders FirstSource, point of rocks, (number withheld) rock hall road, commercial fire alarm nine charlie 1935 . 00:33 Hazmat 33 in quarters, engine company staff. 00:39 Hazmat 33 in quarters, 1935 . 00:45 Engine 200 and eighty-one, truck five, responding. 7/25/2026 04:34 PM Fire Rock Hall Rd, Point of Rocks, MD 21777 View on map