Emergency crews in Sonoma County responded Thursday to help identify and remove five 55-gallon containers filled with used cannabis oil by-product and ethanol. On ...

A tanker overturned on the Richmond Parkway overpass above Interstate Highway 80 Thursday morning, causing the spilling of liquid asphalt and prompting a ...

A Facebook spokesman said authorities have found no dangerous substances in a mail and package room at the tech giant’s Menlo Park campus ...

Hazardous materials specialists from the California National Guard’s 95th Civil Support Team have been called in to assess a suspicious package shipped to ...

Emergency crews evacuated four of Facebook’s buildings in Menlo Park Monday morning after the possible presence of a chemical weapon was detected on ...

Emergency crews have evacuated Facebook’s package handling facility in Menlo Park after the possible detection of a chemical weapon on mail delivered by ...

Firefighters with hazardous materials training are setting up at Facebook’s shipping and receiving building in Menlo Park after crews operating a security machine ...

Pool chemicals that spilled onto a Vacaville intersection Monday morning were cleaned up and all streets were reopened around noon, according to police. Vacaville ...

A “hazardous materials incident” has prompted the closure of an intersection in Vacaville on Monday morning, police said. Vacaville police wrote on Twitter at ...

The Fairfield Police Department says Madison Street is closed between Texas and Missouri streets for a hazardous materials incident involving the apparent dumping ...

An oily sheen on Lake Merritt was reported Wednesday evening to Oakland fire officials.

San Jose firefighters have canceled a hazardous material evacuation at a Google office building Tuesday morning after crews found no dangerous materials during ...

San Jose firefighters are asking people to avoid the area around 75 E. Trimble Road on Tuesday morning while they investigate a hazardous ...

A hazardous materials spill led to a shelter-in-place order in Menlo Park Tuesday, according to Menlo Park Fire Protection District Chief Harold Schapelhouman.

Twenty people have been hospitalized at a swim club in San Jose because of a hazardous materials situation.

A substance found Wednesday in a package sent to the Stanford University professor responsible for leading the recall campaign against Judge Aaron Persky ...

A hazardous materials crew tonight is attempting to find the source of an unknown substance at a department store in Antioch, which sickened ...

Two people were hospitalized Friday morning after a hazmat incident at a recycling center at San Francisco's Pier 96.

Hazardous materials officials lifted a health alert this afternoon for the Rodeo community in Contra Costa County.

About 40 people, mostly children, fell ill Thursday afternoon due to a possible chemical exposure.

A suspicious smell shut down the Kaiser Hospital in Santa Clara and made one man ill this evening, according to the Fire Department.

Hazmat teams are cleaning an oil spill after a tractor-trailer slid off Interstate Highway 680 during heavy rains this morning in Sunol, an ...

A hazardous materials team left an area in San Francisco's Sunset District this evening after taking two people to a hospital, a fire ...

A hazardous materials incident in Hayward this afternoon has prompted a widespread shelter-in-place order and a road closure off of state Highway 92, ...

A man was found dead at an Outer Richmond home where there was a possible hazardous materials incident.

FBI seeks public's help finding Ryan Kelly Chamberlain II, 42, who is considered armed and dangerous.