These are very common low power frequencies, probably rented radios for a situation like that. Not sure if the TAFL would show who has access to this frequency but you can look it up if u want.
When Halton was still using its EDACS system the HRPD was extremely active, and a few talkgroups, like "Spec 3" would carry radio traffic. And transit and by-law are active.
To me it's boring, I don't bother to listen. A few years back Halton EMS had an interesting call, a few people felt sick from something they ate or drank, not sure what was going on if it was gas leak or food poisoning. Halton dispatched numerous EMS trucks to scene to help out with the bike units on site and they needed numerous Hamilton EMS to come and help out.
Not sure what was going on, I didn't remember reading about it in any newspaper and I can't remember if the EMS patched to JB, right next door.
Are you working as a volly? If so do u have a radio and close call? The company I just tempted for used 469.xxxx. Not sure of a repeater or tower but I used a MTX9250 some of the time. And I jotted down a few frequencies for different departments.
But it's not really worth submitting cause one of the departments at this job are getting a new radio system and I don't feel comfortable making public anything more than what I am saying.