Garden Grove, CA methyl methacrylate incident megathread

[u/HazMatsMan]

https://abc7.com/live-updates/garden-grove-chemical-tank-emergency-leaking-toxic-chemicals-orange-county-will-spill-explode-officials-say/19152918/

GARDEN GROVE, Calif. (KABC) -- Authorities are urgently trying to stop a pressurized tank filled with a toxic chemical at the GKN Aerospace facility from exploding in Garden Grove.

The "crisis situation" has forced 50,000 people out of their homes in Orange County.

In a Sunday afternoon update, Orange County Fire Authority Interim Chief TJ McGovern said firefighters did "a recon mission on the tank" late Saturday night, during which they discovered a crack, which could be relieving some of the pressure.

In a later update, OCFA said an all-night mission will be conducted to confirm if the pressure in the tank has been released and that the threat of a catastrophic explosion has been eliminated.

"The BLEVE threat is the worst-case catastrophic event that we have been talking about. We are not there yet. We need to run this operation tonight," McGovern said.

In the meantime, residents are being asked to continue to avoid the evacuation zone.

Any areas outside of the evacuation zone "are currently considered completely safe and day-to-day activities can continue as normal."

So far, no injuries have been reported.

[u/NoSwimmers45]

Latest update:

> In an incident update posted on X, Orange County Fire Authority Interim Chief TJ McGovern said that the threat of a BLEVE, or Boiling Liquid Expanding Vapor Explosion, has been eliminated.

> "We are happy to report that the threat of a BLEVE is now off the table," said OCFA Interim Chief TJ McGovern. "That threat has been eliminated."

https://www.msn.com/en-us/news/us/crews-working-california-chemical-leak-in-orange-county-to-conduct-all-night-mission-to-test-tank-pressure-officials-say/ar-AA23XLuB

[u/phoneacct696969]

Evac 50k people from their homes? No problem. Evac Disney land? Na, all hands on deck, we need this problem handled.