The Pueblo Chemical Agent-Destruction Pilot Plant, or PCAPP, was built to safely and efficiently destroy the stockpile of chemical weapons currently in storage at the U.S. Army Pueblo Chemical Depot. The pilot plant is using neutralization followed by biotreatment as the technology to destroy munitions containing 2,600 tons of mustard agent. Additionally, the Army’s Explosive Destruction System, or EDS, is on stand-by to augment the main plant to destroy problematic chemical munitions that cannot be easily processed using its automated equipment.
In September 2002, the Bechtel Pueblo Team was awarded the systems contract to design, construct, systemize, pilot test, operate and close the plant. The Program Executive Office, Assembled Chemical Weapons Alternatives program, known as PEO ACWA, is the Department of Defense agency responsible for managing the destruction of the Pueblo chemical weapons stockpile and oversees the Bechtel Pueblo contract.