Yes, it goes back to the days when they had a separate EDACS system on those frequencies:
Live Oak EDACS
That system was solely for Live Oak, Selma, Converse, Cibolo, Schertz and Universal City. Randolph Metro municipalities. They eventually merged with the LCRA system during the P25 700 MHz rollout. That’s why that site has so many frequencies compared to the others around it. With the switch to Phase 2 happening, the capacity of those frequencies essentially doubles, minus the active control channel.