I took a look at my Splunk logs from Trunk Recorder to find other recordings from those RIDs. 1806614
called into county as ‘34 Fire’, so possibly a chief or officer? Either way, not sure what that TG is used for. They do mention ’Interop’ when they first used it today.
Edit: when I said “so it’s Bridgewater” that’s a guesstimate. They easily could be Bridgewater radios in use for another purpose