GKN Aerospace’s 15‑acre site in Garden Grove has been rattled by a series of incidents, most notably a 2023 spill of 200 gallons of methyl methacrylate (MMA) that forced the evacuation of 50,000 residents on Memorial Day weekend. City inspectors have documented repeated violations, from white sludge in sewers to hazardous dust handling, raising questions about the plant’s safety culture.

2023 MMA Spill Prompted Mass Evacuation of 50,000 Residents

According to a city hazardous spill report, 200 gallons of MMA overflowed from a containment unit into a concrete berm in October 2023. The report, cited by the source, noted no injuries or waterway contamination. However, the same source reports that a tank holding 7,000 gallons of MMA overheated on May 21, threatening an explosion and prompting a city‑wide evacuation of 50 ,000 people.

City Inspectors Uncover 15‑Acre Site Violations in 2023

Pictures taken during a 2023 inspection revealed rusted containers, barrels, and sewer grates,with green water pooling and white residue visible. The source says the plant had been cited for sending white sludge into the sewer system and for handling acrylic dust and hazardous materials without the required secondary containment. City officials ordered the firm to improve housekeeping after these findings.

Culture of “Just Brushing It Off” According to Former Employee

A former product quality inspection employee, Osvaldo Cortes, 42, told the source that complaints were routinely brushed aside. He described a workplace where the priority was keeping the plant open rather than addressing safety issues, a sentiment echoed by other insiders who see a pattern of neglect.

GKN’s Public Response and Ongoing Audits

In an emailed statement on June 4, GKN Aerospace said it takes employee and community safety seriously, is continually evaluating operations, and is regularly audited by state and federal agencies. The source notes that inspection photos taken in 2025 show a neater property, suggesting some corrective action has been taken.

Key Questions Still Unanswered

What specific measures has GKN implemented to prevet future MMA spills? How will the plant’s safety protocols change after the 2023 incidents? And will city officials enforce stricter penalties if violations recur?