The recent incident at GKN Aerospace in Garden Grove brought the dangers of methyl methacrylate into sharp focus. This chemical, capable of causing severe respiratory issues and even explosions, is stored at 14 facilities across California. The near-disaster in Garden Grove highlighted the potential risks and the need for stricter regulations and emergency preparedness.
The Department of Fire in Orange County narrowly averted a catastrophe when a tank at GKN Aerospace cracked, releasing pressure. Governor Gavin Newsom declared a state of emergency, and multiple agencies are investigating the incident. However, the danger persists, as similar facilities continue to store significant quantities of this hazardous chemical.
The Scope of the Problem
A CalMatters analysis of federal data revealed that in 2026, 14 facilities in California reported storing methyl methacrylate. Four of these sites stored amounts comparable to or larger than the quantity involved in the Garden Grove emergency. The chemical is not regulated by the EPA’s Risk Management Program or California’s CalARP program, leaving a significant gap in oversight.
The facilities storing this chemical are often located near residential areas, raising concerns about public safety. For instance, Rohm & Haas Chemicals in HaywardEngineered Polymer Solutions in Commerceand Plaskolite West in Compton each reported storing between 1 million and 10 million pounds of methyl methacrylate. The Arkema Coating Resins Plant in Torrance stored amounts similar to GKN Aerospace.
Community Concerns and Regulatory Gaps
Community advocates and environmental justice groups have long raised alarms about the lack of regulation and emergency planning for hazardous chemicals. Ivana Castellanostoxics program manager with Physicians for Social Responsibility Los Angelesemphasized the widespread nature of the problem: “This could happen anywhere. There are so many facilities handling hazardous materials, and it’s very easy for something to go wrong.”
The incident in Garden Grove exposed the shortcomings in hazardous chemical oversight. Many residents were unaware of the risks posed by nearby facilities. Cynthia Babichexecutive director of the Del Amo Action Committeeexpressed her concerns: “When incidents like the one in Orange County happen, they bring to light all the fears our community has: that people aren’t prepared, that we aren’t protected, and that there are really dangerous chemicals in our community.”
Facility Responses and Safety Measures
In response to the Garden Grove incident, several facilities have reviewed and updated their safety protocols. Roger Hamiltonvice president of operations at Plaskolite Weststated that the company conducts annual reviews of its emergency plans and has implemented additional measures in light of the recent incident. The facility uses inhibitors to prevent chemical reactions and conducts regular training and monitoring.
Glynna Mayersa representative for Rohm & Haas Chemicalsassured that the Hayward site complies with all applicable storage and handling requirements. The facility stores the chemical in a concrete-surrounded tank with a fire suppression system and conducts regular drills with local emergency responders. “Our priority remains the safety and security of our employees, neighbors, and the environment,” Mayers said.
Dave Schradera representative for Arkema’s Torrance facility, highlighted the company’s strong record on safety and environmental compliance. The facility conducts emergency response drills several times a year and trains with local emergency responders annually. “Arkema and the Torrance plant are very rigorous about safety and environmental compliance,” Schrader stated.
The Engineered Polymer Solutions facility in Commerce, which reported storing between 1 million and 10 million pounds of methyl methacrylate, did not respond to requests for comment.
The near-disaster in Garden Grove serves as a stark reminder of the potential risks posed by hazardous chemicals. While facilities are taking steps to enhance safety measures, the lack of comprehensive regulation and emergency planning remains a significant concern. Community advocates continue to push for stricter oversight and better preparedness to protect residents from future incidents.
