The Contra Costa County Board of Supervisors on Tuesday appointed San Francisco's former public health director to oversee its own county health department. Dr. Grant Colfax, who stepped down in ...

The Contra Costa County Health Department has since identified the substances released in the smoke. Health officials say the fire started during planned maintenance when hydrocarbons leaked and ...

Contra Costa County officials have lifted a shelter-in-place order that was placed after a fire erupted Saturday at the Martinez Refining Co., injuring at least six people. A public health advisory ...

CONTRA COSTA COUNTY, CA — The City of Martinez reported a County Warning System Level 1 alert, and reports of petroleum smell from the PBF Energy refinery. According to city officials, Contra Costa ...