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Hazmat Incident

Mercury Leak Reported from Thermostat

Contractor on scene reported mercury leaking from an old thermostat. City of Watertown Fire Engine 2 dispatched to the incident.

Closed Apr 28, 2026 u{007907} 1:57 PM City of Watertown Fire
231 Winslow Street, Watertown, NY

Incident Report

**Watertown Fire Responds to Mercury Leak at Winslow Street Residence**

City of Watertown Fire Engine 2 was dispatched at 1:57 p.m. to 231 Winslow Street in Watertown, New York, for a reported mercury leak from an old thermostat, according to dispatch radio traffic. A contractor on scene notified authorities of the hazmat incident, prompting the initial response from fire personnel.

Around 2:40 p.m., responders reported Engine 2 requiring assistance from Watertown Police Department units with a non-cooperative and disorderly subject at the location. Police units 19-1-5, 19-0-6, and 19-0-7 were dispatched code 1 to aid fire crews. By 3:40 p.m., dispatch confirmed the male subject was no longer on scene, with PD units clearing the disorderly call. Officers continued a brief search for the individual at nearby locations including 448 South Mass Street and along Mill Street, yielding negative results.

The incident was cleared at 4:07 p.m. after Watertown PD unit 19-1-5 reported clear and returned to property checks, according to radio updates. The response lasted approximately 129 minutes.

Dispatch Audio

Initial 1:57:37 PM

Mercury Leak Reported from Thermostat

View Transcript
City fire alarm engine two, respond. 231 Winslow Street. Contractor on scene stating mercury leaked from a thermostat. Repaying city fire alarm engine two. 231 Winslow Street contractor on scene found mercury leaking from an old thermostat. Crosses are in clay and hand

City of Watertown Fire

Incident Timeline (5 events)

1
Mercury Leak Reported from Thermostat 1:57:37 PM

Contractor on scene reported mercury leaking from an old thermostat. City of Watertown Fire Engine 2 dispatched to the incident.

City fire alarm engine two, respond. 231 Winslow Street. Contractor on scene stating mercury leaked from a thermostat. Repaying city fire alarm engine two. 231 Winslow Street contractor on scene found mercury leaking from an old thermostat. Crosses are in clay and hand
2
Engine 2 aids PD with non-coop subject 2:40:29 PM

Engine 2 with law enforcement for non-cooperative individual.

2:40:23 PM JE Dispatch Dispatch on for last unit. Can you re identify and go ahead with your traffic?
2:40:29 PM Unit The engine two, pretty law enforcement for non cooperative individual.
2:40:30 PM Unit Copy.
3
PD units assist fire with disorderly subject 2:40:47 PM

Watertown PD units 19-1-5, 19-0-6, and 19-0-7 dispatched code 1 to assist fire with disorderly subject at 231 Winslow Street.

2:40:47 PM JE Dispatch 399, any available unit assist fire for disorderly subject, Winfield Street.
2:40:50 PM JE 19-1-5 94.
2:40:54 PM JE 19-0-6 99.
2:41:03 PM JE Dispatch 9499, respond. 231 Winslow Street. Fire department on scene stating there's a disorderly subject.
2:41:10 PM JE 19-0-6 97.
2:41:15 PM JE 19-1-5 Four copy. They need a code or is code one fine?
2:41:23 PM JE Dispatch They're on scene. They're just requesting PD at this time.
2:41:33 PM JE 19-0-7 530.
2:41:55 PM JE 19-1-5 4, sir. Do they need us emergency response, or is code one fine?
2:42:10 PM JE Dispatch They just requested patrols standby on the priority.
2:42:18 PM JE Dispatch That's gonna be for '19.
4
PD clears disorderly at Winslow hazmat 3:40:13 PM

19-0-7 en route to Ohio. Dispatch confirms male no longer on scene. 19-1-5 clear 40.

3:40:09 PM JE 19-0-7 I'll be en route to Ohio.
3:40:13 PM JE Dispatch Copy. Thank you. Mail is no longer on scene.
3:40:28 PM JE 19-1-5 Four c.
5
19-1-5 clears 40, on property 4:07:20 PM

Watertown PD 19-1-5 clears code 40 and reports on property.

4:06:56 PM JE 19-1-5 40.
4:07:16 PM JE 19-1-5 947.
4:07:17 PM Unit 94.
4:07:20 PM JE 19-1-5 19 on property.
4:07:23 PM JE Dispatch Copy.
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