Hundreds lined up and passed through security screening devices before entering a meeting where they could learn about the compensation program for losses suffered in what could have been one of the worst industrial disasters in Orange County history.  

These residents and business owners were in the danger zone when a large chemical tank at the GKN Aerospace plant in Garden Grove began to dangerously overheat on May 21, 2026. The mandatory evacuation order lasted five days, impacting 50,000 residents and businesses in six cities. The emergency response alone would generate $8,471,385.50 in costs.

An explosion of the highly volatile material – methyl methacrylate (MMA) – might have sent a plume of toxic chemicals over a huge area. Parts of Garden Grove, Westminster, Buena Park, Anaheim, Cypress, and almost all of Stanton were potentially affected. GKN manufactures parts for commercial airplanes, military aircraft and spacecraft. Its Garden Grove plant specializes in aircraft windows, cockpit windshields and protective cockpit canopies, including the canopy used on the F-35 fighter jet. 

The October 27 town hall at Delta Hotels Anaheim/Garden Grove coincided with the opening of a court-approved compensation program online claims portal. Ernst & Young, a global accounting and professional services firm, is the independent administrator of GKN’s compensation program. The firm will evaluate and process claims independently of GKN under what is called a “special master.” In this case, that job will be done by retired U.S. District Judge Andrew Guilford, according to program documents.

GKN Aerospace and Ernst & Young staff outlined the program offering up to $100 million to eligible residents and businesses affected by the company’s chemical-tank emergency.

The program is part of a settlement approved October 19 between GKN and the Orange County District Attorney’s Office following the incident. Eligible households can receive $500 for loss of use of their homes, in addition to other qualifying compensation. Benefits include lodging reimbursement generally capped at $300 a night for five nights, with up to $500 a night or additional nights allowed under specified circumstances.

The program also provides $50 per person daily for meals for up to five days and $20 per household daily for transportation, increasing to as much as $50 with supporting documentation. Qualifying hourly workers may recover lost wages of up to $500 daily for three days. Eligible businesses may receive up to $5,000 daily in documented lost profits, according to program guidelines.

Eligibility depends on an applicant’s address within the mandatory evacuation zone and other program requirements, rather than residence in a particular city. Applications will be accepted for six months or until $100 million in claims has been approved, whichever comes first, presenters’ materials stated.

Participation is voluntary, and submitting a claim does not waive legal rights. Accepting an offer, however, requires signing a settlement and release that dismisses existing incident-related litigation and forfeits participation in future litigation or settlements against GKN concerning the incident.

Questions from the audience included how losses greater than the published caps would be handled. According to GKN and Ernst and Young staff, the special master will not have the authority to go over the established limits. 

GKN’s Garden Grove plant had a documented history of workplace-safety citations and substantial air-quality compliance problems before the May 2026 emergency. There were questions about previous safety violations and penalties assessed against GKN. Stanton City Council member Donald Torres wanted to know why the public should regard new safety assurances as credible.

Steve Carlin, GKN Aerospace’s senior vice president who oversees the Garden Grove site, said that the court-approved safety plan includes upgraded monitoring equipment, revised operating and emergency procedures, employee training and independent audits. The company said the tank involved in the emergency will not be used again.

Following last night’s GKN town hall, residents face an important choice: submitting a compensation claim preserves legal rights, but accepting a settlement requires releasing incident-related claims against GKN and related parties. Review the terms carefully before signing.

Claims can be submitted at GKNGGClaimsProgram.com. Assistance is available in English, Spanish, Vietnamese and Korean at 657-526-7470, weekdays from 9 am to 5 pm. GKN said details about a staffed, in-person claims center would be announced later.