About 50 gallons of water spilled into a storm drain at GKN Aerospace in Garden Grove, and testing is underway to see if the water contained any toxic chemicals, Orange County health officials said Friday. Specifically, officials are searching for any trace of methyl methacrylate, or MMA. Approximately 7,000 gallons of that same chemical were in a tank at the facility that went into crisis in late May, creating a risk of explosion that forced the evacuation of 50,000 people in portions of Garden Grove, Stanton, Anaheim, Buena Park, Cypress and Westminster. The threat subsided on May 26 after officials confirmed that the tank had cracked and was no longer pressurized. The water spill occurred during a routine effort to empty what the Orange County Health Care Agency called an “onsite stormwater/condensation tank located in an area unrelated to the incident site.”

Other water pollution news:

• Redheaded Blackbelt (Phillipsville, Calif.): Drilling slurry believed source of white plume in Redwood Creek; agencies investigating​