Residents living near the Santa Clara Valley Water District’s Santa Teresa plant were told to stay in their homes on Sunday after ammonia was found leaking from a 5,000 gallon holding tank in the plant. Some 250 gallons of corrosive aqueous ammonia are believed to have leaked before the hole was sealed. The plant was closed for renovations at the time.
Firefighters first appeared on the scene at approximately 11:15am on Sunday. By noon they were going door to door to the surrounding homes, telling them about the incident. People in about 25 homes on Graystone Lane, Rosalind Lane, Skuse Court, and Carriage Hill Drive were warned to stay indoors while the firefighters worked. By 2:15pm the shelter-in-place warning was lifted.