Good stuff, thanks. I'll have to update the information for the SDS and 325P2.
A couple of notes.
Friday I heard fire training evolutions on TG 4359, which I have tagged as Hazmat Ops 1. I was driving on the wilds of Louis Henna Blvd, so didn't have an opportunity to investigate further.
I'm consistently hearing Cedar Park Fire dispatched on TG4632, which I have tagged (per the RRDB) as Cedar Park Dispatch 2. I've had 4679 tagged as Cedar Park Fire 1, per hearing it referred to that way on dispatch locution. I'll have to add TG 4680 as I don't have it programmed in any scanner.
4470 and 4471 I have programmed as Cedar Park Fire 1 and Cedar Park Fire 2, but have never heard any traffic on them. I'll relabel them for Liberty Hill and see if I hear anything, although it doesn't seem likely.
I have heard Taylor locution as you describe, but couldn't figure out why that was happening.
I've heard Jollyville and Sam Bass on I think TG 4518 and will try to pay closer attention. As you know, they aren't all that busy. It's an oddity of the "Auto Aid" dispatch model that sometimes multiple ESDs are dispatched to an incident and cross not only ESD boundaries, but cross over into adjacent counties.
TG 4504 is active and is the first TG used by Hutto Fire when they get on scene In my scanner I have it tagged as "Hutto Fire 1". That's different than what you have below. I don't know that I've heard 4505 yet, but will listen for it. Hutto is pretty busy these days, so it shouldn't take long to confirm what they are using.
I'll update as I get more information and get what I have more sorted. I think I've reprogrammed Williamson County three or four times since I moved here in November of 2023.
I had some free time and was able to identify that these old channels have been repurposed based on dispatching channel assignments and subsequent matching fireground traffic:
4470 Liberty Hill Fire 1 -> West Fire 3
4471 Liberty Hill Fire 2 -> West Fire 4
4480 CP Fire 1 -> West Fire 1
4481 CP Fire 2 -> West Fire 2
4504 Hutto Fire 1 -> East Fire 1
4505 Hutto Fire 2 -> East Fire 2
New TGs id'd
4679 CP Fire 1
4680 CP Fire 2
I also found that 4951 in the database as Taylor Fire 2 is locution dispatching for Taylor only, but seems to be possibly patched to WC E DISP, or maybe not. There are some calls for Taylor only that aren't also recorded on WC E DISP, but that could just be a busy node. What it looks like ultimately is that most of the old 4400 talkgroups for department only Med/Fire tacs have been all repurposed to regional Med/Fire groups, and groups in the 4500's and above are the newer department specific ones.
Another thing that I am hoping to accomplish is getting each WC dispatch figured out for which all departments are handled. So far I know:
West: Liberty Hill, Leander
Central: Jarrell, Granger, Weir, Florence
East: Hutto, Taylor, ESD 10, Bartlett
Not sure: Sam Bass, Jollyville
Department Only: Round Rock, Cedar Park, Georgetown