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OC toxic tank on path to spill or explode; crews find crack in tank that could be relieving pressure

Last updated: Sunday, May 24, 2026 7:37PM GMT
Leak or explosion? OC remains on edge over chemical tank crisis

GARDEN GROVE, Calif. (KABC) -- An urgent situation is unfolding in Garden Grove, where a chemical tank at the GKN Aerospace facility has been unstable for several days and is on a path to imminent failure.

Authorities say it will likely either spill thousands of gallons of a highly toxic chemical or, even worse, explode if it fails.

The "crisis situation" has forced 50,000 people out of their homes, leaving them wondering when this will all end. Some schools were also closed on Friday.

The Orange County Fire Authority (OCFA) says a crew was able to see an internal temperature gauge, showing that the temperature has been rising about one degree per hour since Thursday morning.

Now, authorities are preparing for the tank to fail, as well as talking to experts from across the country to find any alternative solutions.

Gov. Gavin Newsom has declared a state of emergency in Orange County, making additional state resources and shelter sites available.

So far, no injuries have been reported.

It was unclear what initially caused the material in the tank to overheat.

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KABC logo
May 24, 2026, 4:28 AM

Map shows evacuation order impacting 50,000 Orange County residents

The evacuation zone for a "crisis situation" in Garden Grove spans several blocks. Authorities say 50,000 residents are impacted. They are urging everyone in the zone to leave for their safety immediately.

The evacuation zone covers the area north of Trask Avenue, south of Ball Road, east of Valley View Street and west of Dale Street.

Small portions of West Anaheim, Cypress and Buena Park are also included in the evacuation zone, as well as the city of Stanton.

The Garden Grove Police Department said they did reverse 911 calls and went door to door, urging people to leave. They said as of Friday afternoon, there was about a 15% refusal rate.

A public information hotline was established at 714-628-7085. Another 24-hour call center is available at 714-741-5444.

City News Service contributed to this report.

KABC logo
1 hour and 42 minutes ago

Crews find crack in tank, gain positive intel that could shift response strategy

Firefighters gathered "positive intel" during an overnight operation that could shift the response strategy for the chemical tank crisis in Garden Grove, officials said during a Sunday morning update posted on social media.

A specialized team of subject matter experts developed a plan to get eyes on the tank. During the operation, firefighters were able to visually examine the tank and discovered a potential crack, which may be helping relieve pressure.

"During that operation, our firefighters went in, and they were able to visualize the tank," said Interim Orange County Fire Authority Chief TJ McGovern. "What they found was a potential crack in the tank, which could potentially be relieving some of the pressure in there."

He said officials are now reviewing and confirming that information, which could play a key role in determining how crews move forward.

"We took that information, we got data on it, and right now this morning, what we're doing is we are vetting and validating that information," McGovern said. "With this new information, it could change our trajectory and our strategy to this event."

McGovern said the operation was successful, although the situation is not yet resolved.

"We're not there yet, but this was a step in a right direction, and there's going to be a lot more coming shortly," he said.

"Your protection, your life safety is our paramount responsibility right now," McGovern added. "We know you're out of your homes, we want to get you back, but we cannot do that until it's deemed safe."

KABC logo
2 hours and 16 minutes ago

Resources for residents evacuated due to chemical tank crisis

About 50,000 residents are under mandatory evacuation orders due to the ongoing chemical tank crisis in Garden Grove.

Here is a list of resources for evacuees:

  • Garden Grove Emergency Hotline: 714-741-5444
  • O.C. Public Information Hotline: 714-628-7085

12:51 PM GMT

List of school closures in evacuation zone

The following schools will be closed until further notice.

Garden Grove School District:

  • Barker Elementary School
  • Bryant
  • Carver
  • Enders Elementary School
  • Garden Park
  • Lawrence Elementary School
  • Wakeham Elementary School
  • Patton Elementary School
  • Bell Intermediate School
  • Alamitos Intermediate
  • Pacifica High School
  • Rancho Alamitos High School
  • Skylark Preschool
  • Maintenance and Operations Facility
  • Lampson Bus Yard

Magnolia School District:

  • Esther L. Walter School (students relocated to Jonas E. Salk)
  • Robert M. Pyles STEM Academy (students relocated to Mattie Lou Maxwell Elementary)

Savanna School District:

  • Hansen Elementary (students were split between Holder School and Twila Reid Elementary School)

Westminster School District:

  • Finley, Johnson, and Sequoia Schools relocated to Stacy Middle School
  • Anderson, Fryberger, Meairs, and Schmitt relocated to Warner Middle School

Cypress School District:

  • Frank Vessels Elementary
  • Juliet Morris Elementary

City News Service, Inc. contributed to this report.

ABCNews logo
12:45 PM GMT

Some 50,000 residents under evacuation orders

Mandatory evacuations have expanded for some 50,000 residents in the Garden Grove area, according to an internal briefing memo reviewed by ABC News.

There are multiple public facilities nearby -- including schools, hospitals, nursing homes, fire and law enforcement stations -- critical infrastructure, and essential services, all currently subject to mandatory evacuation and ongoing response operations.

Multiple roads have also been closed off in the evacuation zone. Evacuation centers have been established across Garden Grove, Cypress, Stanton City Hall, Anaheim, and Buena Park, the memo said.

ABC News contributed to this report.