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Residents of Orange County, California, are anxiously awaiting the outcome of an all-night mission to determine if pressure has been relieved from a chemical tank at GKN Aerospace in Garden Grove. The "crisis situation" has led to the evacuation of over 50,000 people since Friday (May 22). The Orange County Fire Authority (OCFA) remains concerned about the potential explosion of the pressurized tank filled with methyl methacrylate, a toxic chemical.
A crack discovered in the tank late Saturday night (May 23) might be relieving some of the pressure, according to OCFA Interim Chief TJ McGovern. However, the situation remains critical, and an all-night operation is underway to confirm if the threat of a catastrophic explosion has been mitigated. Residents have been advised to stay out of the evacuation zone, which spans several blocks and includes parts of West Anaheim, Cypress, Buena Park, and Stanton.
Firefighters have been using drones to monitor the tank's temperature every 10 minutes, focusing on keeping it cool. "Resources with all different agencies, including chemists and scientists, are working around the clock to find the best solution," said OCFA's Wayhowe Huang. The Orange County District Attorney's Office has launched an investigation and set up an anonymous tip hotline to gather information about the incident.
The cause of the overheating remains unclear, but the tank's drainage valves are not functioning, complicating efforts to manage the situation. The Environmental Protection Agency has set up monitoring stations, and so far, no fumes have been detected. Governor Gavin Newsom has declared an emergency in response to the crisis.
The tank, containing approximately 7,000 gallons of methyl methacrylate, poses a significant risk due to its highly volatile nature. If the temperature inside the tank rises, it could lead to an explosion, potentially impacting nearby neighborhoods. OCFA Chief Craig Covey stated that a slow leak might be preferable to an explosion, as it would reduce the explosive hazard.
As the situation unfolds, the OCFA and other agencies continue to work tirelessly to protect residents and the environment from potential harm.