Person having a seizure at Slate Quarry Road Heard on: Frederick County Sheriff, Fire and EMS, State Police 00:26 00:00 (number withheld) Slate Quarry Road off Thurston Road, Seizure Nine Bravo, 1704 . 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 (number withheld) Slate Quarry Road off Thurston Road, Seizure Nine Bravo, 1704 . 00:18 Ambulance C39 responding. 00:20 (number withheld) Slate Quarry Road off Thurston Road. 00:22 C39 Bravo, 1704. 00:24 This is Frederick County. 9/5/2026 02:01 PM Medical Emergency Slate Quarry Rd, Dickerson, MD 20842 View on map