Plano is in Collin County and Denton County
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from Plano Fire Department website Aug 21 2022
they have 13 engines - all 13 are ALS with 4 man crews - each engine has at least 2 medics - so in total each rig has 2 medics and 2 non
medics - and all 4 of them are also trained as firefighters
they also have 5 ALS ladders with the same crews - 2 medics and 2 non medics
they also have 8 ALS ambulances - with crews of 1 EMT and 1 medic - plus 2 weekday ambulances
bottom line - all front line units are ALS - (except maybe Heavy Rescue 4)
Squad 4 is an SUV with a rookie medic and a experienced medic - they respond to all serious calls in the city
HazMat 5 is possibly cross staffed by other units
Heavy Rescue 4 specializes in technical rescue incidents - possibly have a 4 person crew 24/7
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Sunday aug 21 2022 - from radio traffic via broadcastify - 630 AM local - all stations acknowledge a radio test - Sta 2 thru Sta 13 - dispatcher IDs as "Communications"