SWCall is monitored by each of the 100 county 911 dispatcher offices, plus cities with their own dispatcher offices 24/7. So they have to be affiliated with each of those. The State EOC which is located in the basement of the NCEM building in Raleigh is used by various state level teams such as the 7 Regional Hazmat Response Teams, SMAT Medical teams, Swift Water Rescue Teams, Emergency Management Area Coordinators when they respond to events in the state. After they check in with the EOC they get assigned to one of the VIPER Event talkgroups. So you're best bet is to scan all of them, plus the DPRR talkgroups. Those are assigned on a regional type basis, and get used now and then for special events. Elizabeth City used DPRR East 5 for their July 4th festival this year as an example. Like I said, you should monitor your location and see what comes up. Even some of the 8TAC and 7TAC frequencies have local repeaters that get used now and then. Look at the NIFOG, it's available with a Google search online