Thirty Years of the Chemical Weapons Convention. How Far We’ve Come: The Colorado Experience

Abstract This chapter reflects on Colorado's eight-decade involvement with chemical weapons and chronicles the state's pivotal role in implementing the Chemical Weapons Convention over the past thirty years. Focusing on the Pueblo Chemical Depot, it details the community-led resistance to incineration-based destruction methods and the eventual adoption of a neutralization and biotreatment approach under the Assembled Chemical Alternatives (ACWA) program. The chapter traces the complex, decades-long journey—from initial public distrust and environmental concerns to successful demilitarization of over 780,000 mustard agent-filled munitions. Key challenges included securing sustained funding, navigating environmental permitting, and adapting operations during the COVID-19 pandemic. The successful completion of the destruction in 2023 underscores how government transparency, public engagement, and innovative engineering can achieve both safety and environmental stewardship. Looking ahead, the chapter highlights the challenges and opportunities of depot cleanup and redevelopment, emphasizing a long-term vision to transform the site into an economic and community asset for future generations.