GARDEN GROVE, Calif. (AP) — About 40,000 people were under evacuation orders and schools shut down Friday in Southern California after a storage tank continued to leak a hazardous chemical used to make plastic parts that officials said could rupture or explode.A storage tank holding between 6,000 and 7,000 gallons (22,700 and 26,500 liters) of methyl methacrylate overheated Thursday and began venting vapors into the air at an aerospace plastics facility in Garden Grove, a city in Orange County, the county’s fire authority said.Officials ordered residents in Garden Grove to leave and expanded evacuations orders Friday to some residents of five other Orange County cities — Cypress, Stanton, Anaheim, Buena Park and Westminster — after being unable to stop the leak overnight on the tank at GKN Aerospace, which makes parts for commercial and military aircraft.
“This is not precautionary. … This thing is going to fail, and we don’t know when,” said Garden Grove Fire Chief Craig Covey during a Friday afternoon press conference. “We’re doing our best to figure out when or how we can prevent it.”
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Covey said the tank could fail and crack, releasing the chemical onto the ground, or it could explode.“We understand that this is frightening,” Garden Grove Mayor Stephanie Klopfenstein said at the news conference. “But the evacuation orders are in place for your safety.”
