Carbon monoxide alarm at Discovery Bay home Heard on: Contra Costa County Fire Protection District 00:10 00:00 Engine 99, respond for hazardous conditions. 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 99, respond for hazardous conditions. 00:02 (number withheld) Starboard Court. 00:04 (number withheld) Sarver Court, closest Shaver Drive. 00:07 Carbon monoxide alarm, negative voice contact, calling by alarm company. 2026-11-07 22:57 UTC Fire Starboard Ct, Discovery Bay, CA 94505 View on map