A damaged storage tank at GKN Aerospace in Southern California has sparked widespread concerns. This incident, involving methyl methacrylate, has led to the evacuation of tens of thousands of residents in Garden Grove, Orange County.
The Chemical Threat
The tank contains approximately 6,000 to 7,000 gallons of methyl methacrylate, a flammable and hazardous chemical used in plastic production. When the tank overheated last week, vapors began to vent into the surrounding area. Authorities warn that if the tank overheats further, it might leak all its contents or even explode.
The Environmental Protection Agency (EPA) describes methyl methacrylate as a colorless liquid that can irritate the lungs, eyes, and skin. High doses can lead to reduced lung function, dizziness, and memory issues. Prolonged exposure risks serious respiratory problems or unconsciousness. Despite this, tests show air pollution in the evacuation zone remains within normal limits.
Tank Concerns and Firefighter Response
The tank’s drainage valves are reportedly not functioning, posing risks of a significant chemical spill or explosion. Firefighters are actively cooling the tank to keep its temperature below 85 degrees Fahrenheit. A crack discovered in the tank over the weekend might alleviate pressure, reducing explosion risks.
No injuries have been reported so far. Over 50,000 residents were asked to evacuate during the Memorial Day weekend. The situation is monitored closely by the EPA and local officials, who are prepared for a controlled, low-volume chemical release to manage the threat.
Potential Explosion Impact
If the temperature inside the tank rises, pressure will increase as the liquid converts to gas, heightening explosion risks. Such an explosion could ignite nearby tanks, releasing hazardous vapors over a wider area. While Disneyland’s parks in Anaheim remain unaffected, nearby streets are largely deserted, with shelters available for evacuees.
Ongoing Measures
The crack in the tank is expected to lessen explosion risks. The Orange County Fire Authority is assessing whether pressure has been adequately relieved. Their goal is to prevent the worst-case scenario.
EPA chief Lee Zeldin highlighted the importance of monitoring and neutralizing any threats. GKN Aerospace continues to coordinate with local authorities to resolve the situation safely.