Orange County officials reveal ‘critical’ update on Garden Grove chemical tank threatening to explode

Officials in Orange County say a major shift in conditions at a Garden Grove chemical facility has significantly reduced the immediate risk of a catastrophic explosion.

In a joint statement from the city of Westminster and the Westminster Police Department, experts described the situation as “critically positive.”

The update comes after emergency crews reported a pressurized chemical tank developed a structural issue, prompting fears earlier in the week that it could explode.

But authorities now say the situation has improved after a key change inside the container.

“OCFA has reported the tank has cracked and released some pressure, taking away the potential of a catastrophic explosion.

“There is no leak of chemical substance. This is a new positive development and the science experts are still evaluating this,” according to the city and police officials.

“We do not know when the community will be returned to normal or when evacuations will be lifted, but we will report an update as soon as it is available. Safety is the number one priority for all of us. Thank you for your patience and understanding.”

The incident is still being monitored by the Orange County Fire Authority (OCFA) and environmental safety specialists.

OCFA Interim Fire Chief TJ McGovern said crews entered the site late Saturday to conduct a close visual inspection of the tank.

“We developed a plan to go do an operation last night, late night to go get eyes and do a reconnaissance on the tank.

“During that operation, our firefighters went in and they were able to visualize the tank. What they found was a potential crack in the tank, which could potentially be relieving some of the pressure in there,” McGovern.

“With this new information, it could change our trajectory and our strategy to this event. Last night was a successful operation for this emerging incidence in this ongoing incident,” he added.

Officials say the new information is now being carefully verified as engineers and hazardous materials specialists reassess the stability of the tank and what the apparent crack could mean for overall risk levels at the facility.

“I know this is a disruption. Your protection, your life safety is our paramount responsibility right now. We know you’re out of your homes. We want to get you back, but we cannot do that until it’s deemed safe,” the interim fire chief said.

Air quality sensors placed around the site have not detected any toxic releases, despite the structural change in the tank.

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“Crack discovered at top of tank; releasing pressure – NOT chemicals,” the latest update said, emphasizing that the relief in pressure appears to have reduced the most dangerous risk scenario.

Despite the improvement, evacuation orders have not been lifted and no changes have been made to the affected zones.

Authorities say the precaution remains in place while engineers and hazardous materials teams continue to assess whether the tank is fully stable.

A temporary care center has been opened at the Westminster Senior Center in nearby Westminster to support displaced residents during the ongoing emergency.

For now, emergency managers stress that while the most severe explosion risk appears to have eased, the situation is still considered active and under close watch across Garden Grove and surrounding parts of Orange County.