Emergency response to alarm with symptoms at Lake Forest address Heard on: Lake Forest Fire 00:20 00:00 Ambulance 421 and Engine 421 to ACO alarm with symptoms. 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 Ambulance 421 and Engine 421 to ACO alarm with symptoms. 00:06 Grid 15 at (number withheld) East Onwensia Road, at (number withheld) East Onwensia Road. 00:13 Grid 15, ACO alarm with symptoms. 00:17 Ambulance 421 and engine 421. 5/9/2026 08:35 PM Medical Emergency E Onwentsia Rd, Lake Forest, IL 60045 View on map