GKN Aerospace Incident and Government Response
Emergency responders arrived on May 21 after vapor release, but containment failed due to a damaged valve.
Methyl methacrylate is a volatile, flammable liquid used in resins and plastics.
California officials said no exposure is expected if evacuation orders are followed, with shelters 30 miles southeast of LA.
Gov. Gavin Newsom declared a state of emergency in Orange County, requesting President Trump's emergency declaration.
EPA Administrator Lee Zeldin confirmed involvement, and the District Attorney set up an anonymous tip line.
A class-action lawsuit against GKN Aerospace (UK-based) was filed as investigators use anonymous reporting systems.
Evacuation compliance remains the primary protection measure.
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