40-year-old man injured leg at Chestnut Avenue Heard on: Contra Costa CA Fire Dispatch Group Calls 00:05 00:00 Medic 20, code 2, (number withheld) Chestnut 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 Medic 20, code 2, (number withheld) Chestnut Avenue. 00:04 40 year old male with a leg injury. 7/9/2026 10:10 PM Medical Emergency Chestnut Ave, Concord, CA 94519 View on map