A crew in charge of monitoring chemicals at the Pueblo Chemical Depot detected and confirmed the presence of mustard agent vapor.
The crew detected the vapor inside a chemical storage igloo that contains 105 mm projectiles. They found it during routine operations.
Passive carbon filters prevent that contaminated air from getting out of the igloo. Crews are now installing 1,000 cubic ft./minute air filters to lower the levels of the contaminated air. They'll do this before a crew goes inside the igloo wearing protective equipment. They'll search for a possible leak.
Federal, state and Pueblo County officials were told about the vapor immediately. The Depot says, "All operations associated with finding the leaking munitions will be completed under strict engineering controls, protecting the environment and safety of all depot employees and surrounding communities."
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