Great question, sadly we haven't gotten to the point of operating our transmitter yet so we don't know if co-channel interference is going to be a significant issue or not. I can say tho that neither KAIA or KCAQ come through clearly within our contour.
replyTest it ASAP -- I'm an 80s/90s kid, I loved Pump Up The Volume and I did a little umm broadcasting of my own (so I love your vision) but I would have concerns that even if the larger FM stations aren't coming through there can still be enough power there (you should be able to test that though) to nix out your low-power signal.
replyAlso:
> Stations authorized in the LPFM service will operate with effective radiated
> powers (ERP) between 1 watt (0.001 kW) and 100 watts (0.100 kW). In any case,
> the distance to the 1 mV/m (60 dBu) contour from an LPFM station or
> application will not be permitted to exceed a reference distance of 5.6 km.
Your area map seems a little big(?)
Good luck!