The guy that run's the Waterloo feed here has the regions 900 codes on his website (along with alot of other useful info like CNI flags, division/patrol/unit codes, 10 codes what whatnot). The site is where he ran the same feed from before RR's services came along. Been handy to refer to a few times. Might be useful to you (which by the codes you provided seems like what you're looking for)...
I wont provide a direct link as I don't know if his site is run on his home connection like his feed used to but if you do a google search for "waterloo police codes" and you should find it rather easily.