Contra Costa County Hazardous Materials Program

Flames seen billowing from a stack during a prior incident at the Tesoro Refinery. (CBS)

Power Outage Causes Flaring At Tesoro Refinery; Black Smoke Reported

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.


ConocoPhillips refinery

Gas Leak Contained At Conoco Refinery In Rodeo

Contra Costa County hazardous materials officials said Sunday that a gas leak in a water tank at a ConocoPhillips refinery in Rodeo had been contained.


Phillips refinery in Rodeo during a sulfur leak in 2012. (CBS).

10 Sickened By Leak At Rodeo Refinery

Contra Costa County hazardous materials officials said at least 10 people have reported nausea, throat irritation and respiratory symptoms due to gas released in the air from a water tank rupture Thursday at the ConocoPhillips refinery in Rodeo.