Town of Discovery Bay CSD Community Alert System:
Coming Soon!
Contra Costa County Community Warning System:
The County’s Community Warning System is designed to notify the public in case of toxic spills, floods, fires and other disasters. There are sirens installed near plants from Oakley to
Emergency officials use a number of tools to alert you, including radio and TV, phone calls from the TENS (computerized telephone system that warns residents of a problem in their area) and the public can register for cell and pager e-mail alerts at www.incident.com. You can also buy a weather radio and program it to receive the emergency alerts. Instructions can be found at www.cococaer.org.
Siren testing is scheduled for the first Wednesday of each month at 11:00 a.m. For more information about the “Shelter, Shut & Listen” response, call 925-313-9622.

