Cardiac arrest reported at Arnold Drive in Riverside Heard on: Fire RRU-1 - West Dispatch 00:06 Responding to a cardiac arrest at Riverside, (number withheld) Arnold Drive, RBC Route 30 . 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. Responding to a cardiac arrest at Riverside, (number withheld) Arnold Drive, RBC Route 30 . 9/4/2026 06:23 PM Medical Emergency Arnold Dr, March Air Reserve Base, CA 92518 View on map