People in buildings 825 and 826, both housing facilities, sheltered in place while repairs were being made, Vanover said. Air handling systems at Wright-Patterson Medical Center were also shut off, with the exception of operating rooms.
An “all clear” was given at 2:15 p.m. But, at 2:50 p.m. another cylinder was found to have been leaking and people in buildings 825 and 826 were told to shelter in place. The base hospital’s air system was also shut off again temporarily, according to the base.
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No injuries were reported though two contractors were evaluated on scene and cleared for any possible contamination from the chlorine. The area has been contained and has returned to normal operations, according to the base.
The chlorine cylinders are hydrostatically inspected by the supply vendor every five years, by law, and are tagged accordingly. Additionally, they are checked by certified water operators daily as part of their operating protocol, a spokesman said.
People on base were alerted via the base’s emergency notification system which sends popups on computer screens, e-mails, text messages and robo-calls based on the user’s preference.
A chemical spill a year ago prompted a similar response at Wright-Patt.
On May 18, emergency medical technicians evaluated nine people after 55 gallons of phosphoric acid spilled near the Air Force Research Laboratory’s building 620 in Area B, a base spokeswoman said at the time.
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