A power outage caused flaring early Friday afternoon at the Tesoro Refinery in Contra Costa County. No shelter in place was ordered, but there are concerns over the black, smoke emissions for those with respiratory problems.
More than 9,000 people sought treatment at local hospitals for health problems stemming from the massive fire at the Chevron refinery in Richmond last week, according to a county health official.
Air readings show the leak from the 16-inch pipeline does not pose a significant health threat but is releasing a sulfurous odor. However, when the repair process begins, the odor may intensify.