Oh and Mystic is a village, but is not its own municipality. Mystic it self spans both Groton Town to the west and Stonington to the east, separated by the river. The Aquarium and Seaport are Stonington, the main drag over the bridge is in Groton.
Mystic should not be confused with Old Mystic , which is a village wholly within Groton Town.
Groton, for more fun is a Town, but within the Town is the City of Groton with its own government, own mayor, own independent police force. Within Groton Town is Long Point, its own boro, with its own pseudo government, the Long Point Association, which is a municipal corporation, as well Long Point has its own own independent police department.
Within Groton you’ll find 10 fire and EMS departments, as well as three FDs not part of the town, Navy SubBase Fire, Electric Boat Fire and Pfizer Fire. Unit IDs in Groton are “G” , SubBase units are “N” (although their dispatch is Station C) , Electric Boat dispatch is Station D.
Stonington is Station T, North Stonigton is Station H.
The “hundred” units are ambulances, such as G300, T100. G, Groton Ambulance 300, unit 300, T being Stonington, Ambulance unit 100.
Rigs in the region are typically first number identifies the department, second number identifies the rig. Typically
1 - 4 = Engine
5 = Truck
6 = Utility
7 = Rescue
There are some variants to this, but for example N67 is
N = SubBase
6 = SubBase department number within the town of Groton is 6
7 = Rescue