Tens of thousands of Southern California residents remained displaced Friday as emergency crews worked desperately to contain a dangerous chemical leak that threatens to explode without warning.
Emergency officials issued mandatory evacuation orders for approximately 40,000 people after a storage vessel containing 6,000 to 7,000 gallons of methyl methacrylate began overheating and releasing toxic vapors Thursday at an aerospace plastics manufacturing plant in Garden Grove, Orange County.
The leak originated at GKN Aerospace, a facility that produces components for both commercial and military aircraft. When overnight efforts to stop the chemical release failed, authorities expanded evacuation zones Friday to include portions of five additional Orange County communities: Cypress, Stanton, Anaheim, Buena Park and Westminster.
Garden Grove Fire Chief Craig Covey delivered a stark warning during Friday’s afternoon briefing, emphasizing the gravity of the situation.
“This is not precautionary. … This thing is going to fail, and we don’t know when,” Covey stated. “We’re doing our best to figure out when or how we can prevent it.”
The fire chief explained that the compromised tank faces two catastrophic scenarios: it could crack and spill the hazardous substance onto the ground, or it could detonate entirely.
Garden Grove Mayor Stephanie Klopfenstein acknowledged residents’ concerns during the press conference, saying, “We understand that this is frightening. But the evacuation orders are in place for your safety.”
Emergency responders have constructed protective barriers using sandbags around the facility to contain any potential chemical release and prevent contamination from reaching storm drainage systems, waterways, or the Pacific Ocean.
Covey described methyl methacrylate as extremely volatile, poisonous, and combustible.
“We are setting up these evacuations in preparation for these two options: it fails, or it blows up,” the fire chief explained in a social media video update. “Please follow our requests and orders for evacuations.”
While emergency teams successfully neutralized one damaged storage vessel initially, Covey announced Friday morning that the second tank had entered what he called “the biggest crisis.”
Authorities reported no casualties or fatalities related to the incident. Educational institutions throughout the affected area suspended operations as a safety precaution.
