Chris,
I haven't heard Plattekill Fire on that frequency. Under callsign WQGS626, they list the following...
000451.33750000 1 1 11 MO 100 6.000 6.000
000451.53750000 1 1 3 MO 100 6.000 6.000
000452.63750000 1 1 1 MO 100 6.000 6.000
000452.76250000 1 1 5 MO 100 6.000 6.000
000456.33750000 1 1 12 MO 100 6.000 6.000
000456.53750000 1 1 4 MO 100 6.000 6.000
000457.63750000 1 1 2 MO 100 6.000 6.000
000457.76250000 1 1 6 MO 100 6.000 6.000
000461.05000000 1 1 7 MO 100 50.000 50.000
000462.05000000 1 1 9 MO 100 50.000 50.000
000466.05000000 1 1 8 MO 100 50.000 50.000
000467.05000000 1 1 10 MO 100 50.000 50.000
I have confirmed that:
462.050 PL 136.5 is their Operations channel 1, in simplex.
467.050 PL 162.2 is their fireground channel 2, also in simplex. These two are 50 watts. All the others are 6 watts only and none of them are FB2's, so if you're hearing a link to 56 Control on 452.7625, they may have one of the 6 watt frequencies as a pyramid in vehicle repeater.