40,000 Southern Californians ordered to evacuate amid threat of chemical explosion

NBC news ^ | 5/22/26

[CFW]

An estimated 40,000 people in Orange County, California, have been ordered to evacuate the area over fears that a tank containing a toxic chemical may explode, officials said Friday.

Authorities in Orange County said they’re unable to control the valves on a tank at an aerospace manufacturing facility in Garden Grove.

“It fails or it blows up,” said Craig Covey, the Orange County Fire Authority incident commander at the scene.

Initial evacuation orders were issued Thursday after a “vapor release” at the manufacturing site in Garden Grove. The situation seemed to be stable, but on Friday, the valve on a tank became inoperable, the Orange County Fire Authority said.

Covey said in a video update late Friday afternoon that the tank’s temperature has been stabilized by a curtain of sprayed water, reducing its volatility and buying time for a potential, long-term fix.

Experts from across the country are working on a solution that would “create something that’s never been done before … so that we don’t let this blow up,” he said.

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TOPICS: Business/Economy; News/Current Events; US: California
KEYWORDS: california; chemical; evacuation; stanton; toxic

[CFW]

Well, this is sorta concerning.

[CFW]

“At the request of the Orange County Fire Authority, buses from the Orange County Transportation Authority helped evacuate residents from an assisted living facility on Beach Boulevard.

The residents needed to be evacuated due to a potential explosion that could produce a toxic cloud on Friday following a malfunction in a 34,000-gallon tank containing an industrial chemical used in plastics and manufacturing at an aerospace plant in Garden Grove, officials said.”

https://www.ocregister.com/2026/05/22/oc-buses-help-evacuate-residents-of-stanton-assisted-living-facility-due-to-garden-grove-hazmat-emergency/

[Fai Mao]

An opportunity for the government to redevelopment the area for low income housing. Just like the fires two years ago.

[DoodleBob]

Prayers for all people impacted.

[CFW]

A video with update from authorities at this link:

https://www.foxla.com/video/fmc-nn9gda3i0v4t9ojd

[nwrep]

Garden Grove. Home of Crystal Cathedral.

[BlackVeil]

Very concerning! Prayers for the all residents, that they may soon return safely to their homes.

We will all be waiting for more information about the causes of this incident ... There have been so many accidents, fires and explosions this year ...

In Australia:

https://www.abc.net.au/news/2026-04-16/viva-energy-geelong-oil-refinery-fire-cause-petrol-prices/106570810

[CatOwner]

An opportunity for the government to redevelopment the area for low income housing. Just like the fires two years ago.

Orange County: "We're sorry, but your housing has been condemned. You will not be allowed to enter the buildings to retrieve anything as everything inside has become property of the county for the safety of all local citizens. Your check for 10% of the property value (as of December 31, 1989) will be sent to you within three years. Please be sure you submit your current property tax payments until you receive compensation. Thank you for your cooperation."

[PGalt]

Thanks for posting. BUMP!

[Da Coyote]

As CA further descends into third-world status.
Hope the conservatives get out.
As for the rest.........

[Freedom4US]

“Toxic chemical” and “Industrial chemical”

If only it had a name. I wonder what it is, specifically.

[Jeff Chandler]

Home of Crystal Cathedral

Don't you mean the Christ Cathedral?

[ClearCase_guy]

Probably Dihydrogen monoxide. Dangerous stuff, but it does have some uses.

[CFW]

The leaking substance is methyl methacrylate (MMA), a highly volatile, toxic, and flammable liquid used to make acrylic plastics.

[ridesthemiles]

SOOOOOOOOOOOOOO WHERE IS MAYOR BASS HIDING THIS TIME??/

[CFW]

Here is one hotel that is not taking advantage. Instead they are offering discounts to evacuees.

[Jet Jaguar]

Thanks for posting this.

[Drew68]

An opportunity for the government to redevelopment the area for low income housing. Just like the fires two years ago.

As well as an opportunity for the aerospace manufacturer to relocate to Tennessee or Alabama.

[CFW]

You’re welcome.

Steve Lookner of Agenda-free TV is reporting live on the incident.

https://www.youtube.com/watch?v=AoavUFoyHPI

[Yogafist]

Methyl methacrylate. Google Maps is showing road closures until May 25. That’s a huge area to be evacuated that long. From valley view to Dale is over three miles.

https://www.nbcnews.com/news/us-news/california-evacuation-chemical-explosion-rcna346582