HONOLULU—An investigation found that a spill of about 1,300 gallons of fire suppressant at a fuel facility in Hawaii was caused by a maintenance contractor improperly installing an air vacuum valve, U.S. military officials said Friday.
Aqueous Film Forming Foam, which is used to suppress fires caused by flammable liquids, contain PFAS, a class of chemicals that are slow to degrade in the environment.
The firefighting foam liquid concentrate was spilled in November at the Red Hill Bulk Storage Facility near Pearl Harbor. The concentrate pooled on the floor inside the facility and then seeped under a door and onto a paved access road and soil, the military said….