However, I also see this system: CRESA 911 Trunking System, Vancouver, Washington - Scanner Frequencies
This appears to be a new system for your county, but possibly not yet in use, or at least no talkgroups other than one for testing have been submitted to the database. You might be better off on getting information on this in the Washington State forum. To have your post moved, click on the red outlined triangle in one of your posts and make the request to move the thread to the state forum. If, as it appears, your county services will be migrating to that new system, you would need a P25 Phase II capable scanner. Your Pro-107 would not work on the new system. , though it can work on the old trunked system up until migration takes place. Correctly programmed, it would still work for the conventional channels that may stay in use, as long as they remain analog (not digital).