The 451.400 is at 41 O'Connor Rd and the stated purpose on the license (WPYS810) is "Monitor activity on campus". 452.050 is also licensed to that site.
There are 2 more sites on the license: 120 E Main, East Rochester 452.250 and 25 O'Connor Rd 451.900.
I see DMR activity on all 4 frequencies but have not listened to confirm the use. It looks like 2 TGs and Slots per site.