I think this is how emergency services are provided in Groton CT as of Dec 2013.
Groton is a Town of approx 40,000 people in a 45 square mile area. If you dial 911 from inside Groton, you are connected to the Groton Town 911 Center (which is operated by the Town of Groton EMA). The Groton Town 911 Center dispatches all emergency services in Groton CT except the Navy Base PD, Pfeiser Security, ? Groton / New London Airport Security, and GE Electric Boat Security. Groton Town 911 dispatchs the following agencies - Groton Town PD - Groton City PD - Groton Long Point PD - Mystic Ambulance - Groton Ambulance - Center Groton Fire District - Groton City FD - Groton Long Point FD - Mystic Fire District - Noank Fire District - Old Mystic Fire District - Poquonnock Bridge Fire District - Groton Navy Submarine Base FD - GE Electric Boat FD - Pfizer Chemical FD - Groton New London Airport FD
Fire / Ambulance units are all dispatched on 151.295. Groton Town PD is on 852.7875R?. Groton City PD is on 156.18R?. Groton Long Point PD is on 453.55R?.. Submarine Base PD is on XXX. Pfeizer Security is on XXX. Groton/New London Airport Security uses 453.50R?. GE Electric Boat Security uses ???
Groton Amb covers the weest half of Groton. Mystic Amb covers the east half of Groton (and Stonington). Mystic FD and Old Mystic FD both cover parts of Stonington. Both ambu;ance services are independent not for profit organizations.
Groton Town 911 also dispatches for (is the PSAP for) the Town of North Stonington.
Groton Long Point is a borough located within, but separate from, the Town of Groton. Groton Long Point has its own PD and FD.
The City of Groton is a City (of 3 square miles and 10,000 population) located within, but separate from, the Town of Groton. The City of Groton has their own FT PD, FT/PT FD, and DPW.
Navy Base FD operates on 142.20R PL 103.5
Pfeizer FD also operates on 464.4625 PL 186.2
GE Electric Boat FD also operates on 152.9975 PL 100.0
Navy Base FD, Pfeizer FD, and GE Electric Boat FD also operate ambulances.
(what happens if you call 911 from a cellphone?)
Other law enforcement agencies operating in Groton might include - State Police (800TRS) - State Enviro Rangers - FBI - Naval Intelligence - Amtrak PD? (161.295R)
Mumford Cove Fire District is served by Noank FD
West Pleasant Valley Fire District is served by Groton City FD
There was a Fieldcrest FPD back in 1983 - apparently it was disbanded somewhere between 1983 and 2013
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Dec 21 2013 - listening to radio traffic via a scanner feed - EMS calls seem to get assigned to Tac 2 - I think that deal is - paging on Ch 1 - response and ops on Tac 2 - maybe a 2nd call at the same time would get Tac 3
Fire / Ambulance Radio Channels
Fire and Ambulance Dispatch - 151.295 - DPL 025
MAYBE - 151.085 is primary tac
MAYBE - 151.46 is alternate tac (per feed 12/2013)
Tac 2 - Groton City FD Ops - 155.94 - PL 156.7 (maybe is actually a EMA freq)
Tac 3 - Poquonock Bridge FD Ops - 151.46 - DPL 025 - (? formerly 151.085 PL 156.7 ?)
Tac 4 - ? FAST - 153.83 ?HT - PL 156.7
Tac 5 - Old Mystic FD Ops - 154.22 DPL 025
Tac 6 - Mystic FD Ops - 154.07 R PL 156.7 (input is 150.775)
Tac 7 - ?? - 154.34 DPL 025
Tac 8 - ?? - 159.42 R PL 156.7
Tac 9 - ?
Tac 10 - ?
Tac 11 - ?
Tac 12 - ?
Tac 13 - ?
Tac 14 - EMS Tac - 155.025 PL 156.7 (maybe is actually a EMA freq)
Fire Police 154.355 DPL 025
151.1525 R - ???
156.24 M - maybe is input to 151.1525 R
159.285 - 300 HT 5/5 + 15 MO3 2/2
166.25 - 50 HT 5/5 + 6 MO3 2/2