Chemical Tank Leak in Garden Grove Prompts Evacuation of 40,000 Residents

A hazardous chemical leak at an aerospace facility in Garden Grove, California, has led to the evacuation of approximately 40,000 residents across six cities. The incident involves a 34,000-gallon storage tank containing methyl methacrylate, a volatile chemical used in plastic manufacturing, which began overheating and venting vapors on Thursday.

Orange County Fire Authority Division Chief Craig Covey stated that the tank is "actively in crisis" and could either fail, releasing thousands of gallons of chemicals, or explode, potentially affecting nearby tanks containing fuel or other chemicals.

Evacuation orders have been issued for parts of Garden Grove, Cypress, Stanton, Anaheim, Buena Park, and Westminster. Over a dozen schools have temporarily closed, and outdoor activities in adjacent areas have been canceled as a precaution.

Firefighters are working to stabilize the tank's temperature by directing water at it, buying time to determine a resolution. Covey emphasized the urgency, stating, "This thing is going to fail, and we don't know when."

Methyl methacrylate is a flammable chemical that can cause respiratory issues upon exposure. Health officials have warned that an explosion could release the chemical as a vapor, posing severe respiratory risks.

Authorities have not provided a timeline for when residents can safely return to their homes. The California Governor's Office of Emergency Services is closely monitoring the situation and has deployed personnel to assist local efforts.