
(CALIFORNIA) — An “emergency hazmat incident” in California has prompted evacuations, with officials warning that a chemical tank at an aerospace facility is in “crisis” and will either fail or explode.
Firefighters initially responded to a leak at an aerospace manufacturing company in Garden Grove on Thursday, for vapor releasing from a 34,000-gallon tank containing methyl methacrylate, according to the Orange County Fire Authority.
Officials updated Friday that there is no active gas leak or plume, but that the tank is “actively in crisis” and unable to be secured. Damage to a valve on the tank has “created additional operational challenges,” city officials said.
“There are literally two options left remaining: one, the tank fails and spills a total of about 6- to 7,000 gallons of very bad chemicals into the parking lot in that area. Or two, the tank goes into a thermal runaway and blows up, affecting the tanks that are around them that have fuel or the chemicals in them as well,” Orange County Fire Authority Division Chief Craig Covey said in a video update Friday.
“Most importantly, right now, there is no active gas leak, no plume in the area. We are setting up these evacuations in preparation for these two options — it fails or it blows up,” he said.
Authorities have issued evacuation orders for the surrounding area. Over a dozen schools have temporarily closed, and those adjacent to the evacuation area are canceling outdoor activities “out of an abundance of caution,” the Garden Grove Unified School District said.
Methyl methacrylate is an industrial chemical used in plastics and manufacturing.
ABC News has reached out to the aerospace manufacturing company, GKN Aerospace, for comment.
California Gov. Gavin Newsom has been briefed on the incident, his office said.
The California Governor’s Office of Emergency Services said it is “closely monitoring the incident in Garden Grove and has deployed personnel to work alongside local partners.”
“Please heed all orders from local authorities — evacuation orders have expanded,” it said Friday.
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