# GKN Aerospace Garden Grove hazmat settlement > Live situation record from CLSTR: https://clstr.news/situations/gkn-aerospace-garden-grove-hazmat-settlement > Updated: 2026-10-19T23:43:08.000Z. Sources: 3. Developments: 2. In May 2026, a hazardous materials incident occurred at a GKN Aerospace facility in Garden Grove when a malfunctioning cooling system and failed valve caused a 34,000-gallon storage tank of methyl methacrylate (MMA) to overheat. The threat of a catastrophic explosion prompted a state of emergency and the evacuation of approximately 50,000 residents and businesses across Garden Grove, Anaheim, Cypress, Stanton, Westminster, and Buena Park. Following the incident, the Orange County District Attorney’s Office proposed a $125 million settlement with GKN Aerospace and GKN Aerospace Transparency Systems, Inc. The settlement terms include up to $100 million for a claims program to assist evacuees with expenses, $15 million in civil penalties for consumer protection enforcement, and reimbursement for first responders and local agencies. Additionally, GKN is required to pay $1.4 million to fund seven years of independent safety monitoring. An Orange County Superior Court judge has since approved the agreement. ## Timeline ### 2026-10-19: GKN Aerospace settles for $125M over Garden Grove hazmat incident An Orange County judge approved a $125 million settlement with GKN Aerospace following a May hazmat incident that forced 50,000 residents to evacuate due to a chemical leak. 2 sources. https://clstr.news/cluster/gkn-aerospace-settles-for-125m-over-garden-grove-hazmat-incident ### 2026-10-12: GKN Aerospace reaches $125M settlement over Garden Grove hazmat incident GKN Aerospace has reached a proposed $125 million settlement with Orange County authorities following a May 2026 chemical emergency that evacuated 50,000 residents in Garden Grove, California. 3 sources. https://clstr.news/cluster/gkn-aerospace-reaches-125m-settlement-over-garden-grove-hazmat-incident --- Cite as: GKN Aerospace Garden Grove hazmat settlement. CLSTR, https://clstr.news/situations/gkn-aerospace-garden-grove-hazmat-settlement