At 1:00 p.m. on Wednesday, October 15, 2008 EPA OSC Melanie Morash responded to a release of several thousand gallons of a diluted hydrofluoric-sulfuric-nitric acid mixture at the Evergreen Solar facility (a solar panel manufacturer) in Devens, MA, near the former Fort Devens Military Base. Approximately 458 gallons overflowed a containment area under an air scrubber unit, flowing across a parking lot to a storm drain, then to a man-made vegetated retention pond where the liquid was apparently contained.