California declares state of emergency after toxic chemical leak in Orange County
Firefighters report that a fissure in the damaged vessel may be relieving internal pressure, though the cause of the initial leak remains unknown and evacuees are still barred from returning home.
California authorities have declared a state of emergency following the discovery of a crack in a damaged storage tank containing 7,000 gallons of methyl methacrylate, a volatile chemical used in plastic manufacturing. The leak, which began on Friday in Garden Grove, Orange County, prompted the evacuation of approximately 40,000 residents from the densely populated area located roughly five miles from Disneyland.
On Sunday, officials confirmed that firefighters had observed the crack in the tank on Saturday, a development that has alleviated immediate concerns regarding a catastrophic explosion. TJ McGovern, interim fire chief for the Orange County Fire Authority, described the observation as providing "positive intel" to guide decision-making. He stated that the fissure may be relieving pressure within the vessel, calling it a "step in a right direction," although experts continue to study the data collected during the operation.
The tank, which contains methyl methacrylate, had been heating up, raising fears of a blast and prompting firefighters to spray water on the structure to cool it down. While the leak was initially reported on Thursday, the evacuation order was issued on Friday after fumes spread across the region. McGovern did not comment on whether the discovered crack was directly linked to the initial leak or if it formed subsequently, and the cause of the original breach remains unknown.
The US Environmental Protection Agency has classified methyl methacrylate as irritating to the skin, eyes, and mucous membranes, with potential for respiratory and neurological reactions during acute or prolonged exposure. Orange County Health Officer Regina Chinsio-Kwong stated that the large exclusion zone around the tank was a necessary precaution to protect public health.
As of Sunday, there was no indication that evacuees would be permitted to return home, and shelters have been opened to accommodate those displaced. Containment barriers are being installed to prevent spilled material from entering storm drains or river channels that flow into the ocean. Meanwhile, Disneyland officials confirmed that the resort remains open to guests while monitoring the situation.
