California Governor Gavin Newsom declared a state of emergency in Orange County on Saturday after hazardous conditions at an aerospace facility prompted mass evacuations. Over 40,000 residents were displaced following warnings that a chemical tank could explode or spill thousands of gallons of toxic substances, risking an environmental disaster.
The emergency proclamation activated the California Governor’s Office of Emergency Services (Cal OES) and state resources to support Orange County response efforts. Newsom emphasized resident safety as the top priority, stating that all available state assets would be mobilized to ensure community protection.
Orange County Fire Authority Division Chief Craig Covey confirmed critical developments during Saturday morning updates: The tank’s temperature rose from 77 degrees to 90 degrees after officials incorrectly measured external vessel temperatures using a drone instead of the liquid interior. Covey explained that the substance—a highly volatile and flammable chemical known as methyl methacrylate—increases by approximately one degree per hour. Fire crews have stabilized the tank’s temperature but warned it remains at risk of either rupturing and spilling 6,000 to 7,000 gallons of toxic chemicals into nearby areas or undergoing thermal runaway that could trigger an explosion affecting adjacent tanks.
Orange County Rep. Derek Tran highlighted additional complications, noting two other tanks at the Garden Grove facility contain 30,000 gallons of the same chemical. “While those tanks are not failing, they contain significant quantities of the same toxic chemicals,” Tran stated in Saturday’s press conference.
Covey stressed the uncertainty around timelines and outcomes: “We don’t know when it’s going to end. We’re not giving up—we’re not letting this just go.” Emergency teams are actively seeking solutions through state and national expert networks, but officials acknowledged no immediate resolution exists. The situation remains unstable as crews monitor conditions 24 hours a day.