PCAPP is a state-of-the-art facility built to destroy the chemical weapons stockpile stored at the U.S. Army Pueblo Chemical Depot in Pueblo, Colorado. The main plant will use neutralization followed by biotreatment to destroy the mustard agent stockpile, and the Explosive Destruction System will destroy problematic rounds not well-suited for the plant’s automated equipment. The safety of the workforce, as well as of the neighboring communities, is the project’s most important priority.