Firefighters in Garden Grove are working to stabilize the failing tank holding methyl methacrylate while seeking solutions to avert disaster.
Authorities said the 17- and 18-year-old assailants were believed to have met online and were radicalized by hate-related ideology on the internet.
‘This is every community’s worst nightmare,’ San Diego Police Chief Scott Wahl said.
The woman has agreed to plead guilty to one felony count.

Local officials said Chinese Americans should be careful to avoid being exploited by the CCP.
Dana Williamson pleaded guilty to charges of conspiracy to commit bank, wire, and tax fraud.
Eileen Wang’s case is part of the Justice Department’s work to counter ‘China’s efforts to corrupt our institutions,’ said one federal official.
Stephen Cloobeck is accused of threatening victims of his influencer fiancée, who is suspected of stealing from men she met online.
Her former campaign treasurer was already convicted on the same charge.
The arrests were made during a yearlong investigation dubbed ‘Operation Volcano’ in California’s Riverside County.
Eileen Wang, mayor of Arcadia, faces up to 10 years in prison.
The verdict came after a years-long investigation into the man’s California-based scheme, but his involvement in a suspected biolab remains unresolved.
Abbas Ali Haider faces up to 10 years in federal prison for taking $40,000 each from Pakistani people to help them illegally cross the U.S. southern border.
Updated regulations aim to enhance safety and oversight.
The men were accused of taking part in throwing debris and fireworks over an overpass onto law enforcement below.
The Mexican Mafia sold illegal drugs in Orange County and ran illicit gambling businesses in commercial strip malls and private residences, authorities said.