Pueblo Chemical Depot
The depot houses 2,611 tons (2,369 metric tons) of mustard agent in approximately 780,000 munitions, equivalent to about seven percent of the original chemical material stockpile of the United States. The current course of action for the Pueblo Chemical Agent-Destruction Pilot Plant, included in the President's Fiscal Year 2010 Budget Request, will allow for acceleration of the project schedule. After systemization and pilot testing of the facility, full-scale destruction operations are expected to begin in 2014 and to be complete by 2017. The plant will operate until all the chemical weapons have been destroyed. Closure activities (shut-down, dismantling, and restoration of site) are slated to be wrapped up by 2020. The plant will use neutralization with a hot caustic solution followed by bacterial biotreatment to destroy mustard agent.  This is far outside the deadline set by the Chemical Weapons Convention (April 2012).