Carbon monoxide alarm on La Chelle Drive Heard on: St. Louis County Fire and EMS - South 00:10 00:00 2234, carbon monoxide alarm. 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 2234, carbon monoxide alarm. 00:03 (number withheld) La Chelle Drive. 00:05 Cross street is Paradise Court. 00:07 2234, respond on South Main. 8/16/2026 02:45 PM Fire La Chelle Dr, St. Louis, MO 63146 View on map