Concerns over a possible explosion or leak prompted evacuation orders for tens of thousands of residents, many of whom are staying in shelters.

We are bringing people in from all over the country … trying to come up with additional options,’ a fire official said.

Officials who have been scrambling to find a safe resolution after a tank containing a hazardous chemical at a Southern California aerospace plant was damaged believe the risk of a catastrophic ...

The spill occurred during a routine effort to empty what the Orange County Health Care Agency called an "onsite ...

Uncontrolled polymerization in 7,000-gallon storage tank created dangerous pressure buildup and vapor release concerns.

Authorities in Southern California on Friday were racing to figure out how to prevent the explosion of a storage tank that has been leaking a hazardous chemical used to make plastic parts, as some 40, ...

All evacuation orders tied to a failing chemical tank in Southern California that sparked fears of a catastrophic explosion have been lifted, local authorities announced Tuesday evening. The Orange ...

Grave concerns over the possibility of an explosion that could send a toxic chemical plume into the air in Garden Grove weighed heavy on residents in the Orange County community and firefighters who ...