Person injured at assisted living on Potomac Drive Heard on: Montgomery County MD Fire Dispatch 00:12 00:00 Trivium Black Hill Assisted Living, (number withheld) Potomac Drive, Unit (number withheld), Cross Street, Crystal Rock Drive. 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 Trivium Black Hill Assisted Living, (number withheld) Potomac Drive, Unit (number withheld), Cross Street, Crystal Rock Drive. 00:06 Injured person, BLS routine response. 00:08 Ambulance Seven Hundred and Twenty Nine, proceed to Alpha One, Box Area Twenty Nine Nine, Nineteen Fifty One. 2026-09-30 23:49 UTC Medical Emergency Potomac Crest Dr, Potomac, MD 20854 View on map