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CAER News and Events

For ongoing hazardous materials incidents please refer to the county's website at

Contra Costa Community Warning System

Contra Costa County's Community Warning System (CWS) helps you, your family and your community learn how to prepare for and handle emergencies.

CWS alert buttonRegister to receive voice,
text and email alerts from the Contra Costa County CWS

weather radio buttonWeather radios receive hazarous materials alerts. Learn how to purchase one

CAER in the Classroom

Wally Wise

Let Wally Wise show you how to be safe

Wally Wise Guy is often spotted in local classrooms, letting students know the best way to prepare and handle Shelter-in-Place emergencies.

Dear Wally

“I love you! I would like to invite you to
my house to play. We learned how to
stay safe.”

"I gave you a hug. I noticed your big shoes"

"When I hear the siren, I listen and go inside. I shelter and shut."