Community Warning System

Contra Costa Officials Admit Flaws With Community Warning SystemContra Costa officials conceded on Tuesday that the phone ring-down system for their community warning system may never work perfectly in large emergency events.
More Contra Costa Residents Signing Up For Voice Alerts After Refinery FireThis week’s fire at the Chevron refinery in Richmond has led to an unprecedented number of residents in Contra Costa County signing up to be notified of emergencies with voice alerts.