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Program Executive Office, Assembled Chemical Weapons Alternatives (PEO ACWA)Program Executive Office, Assembled Chemical Weapons Alternatives (PEO ACWA)Program Executive Office, Assembled Chemical Weapons Alternatives (PEO ACWA)Program Executive Office, Assembled Chemical Weapons Alternatives (PEO ACWA)
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      Program Executive Office, Assembled Chemical Weapons Alternatives (PEO ACWA)


      Mission: The safe elimination of chemical weapons at Pueblo and Blue Grass by Sept. 30, 2023

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      Blue Grass Chemical Agent-Destruction Pilot Plant (BGCAPP)

      BGCAPP is safely destroying the chemical weapons stockpile currently in storage at the Blue Grass Army Depot near Richmond, Kentucky.

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      Pueblo Chemical Agent-Destruction Pilot Plant (PCAPP)

      PCAPP is safely destroying the chemical weapons stockpile currently in storage at the U.S. Army Pueblo Chemical Depot in Colorado.

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Mission to Eliminate 2,613 Tons of Agent

Published: September 7, 2017 | Category: PCAPP News, Technology
PCAPP: From Storage to Destruction

On approximately 85 acres of prairie land in Southeastern Colorado, hundreds of trained technicians are operating a first-of-a-kind plant designed and built to methodically disassemble and destroy World War II-era chemical weapons containing the blister agent, mustard. The chemical agent, which is contained within thousands of projectiles and mortars, has been safely stored at the U.S. Army Pueblo Chemical Depot since the early 1950s.

The Pueblo Chemical Agent-Destruction Pilot Plant began chemical agent destruction operations on Sept. 7, 2016. The Bechtel Pueblo Team, which includes engineers, munitions transporters, surety specialists and lab technicians, is responsible for safely destroying what is now the largest remaining chemical weapons stockpile in the United States. The plant is using the destruction technology neutralization followed by biotreatment to destroy the chemical agent.

This infographic highlights the total amount of chemical agent in Pueblo’s original stockpile; the amount of chemical agent and munitions destroyed by PCAPP to date; and, lastly, the amount of chemical weapons destroyed by an alternative system at the depot called the Explosive Destruction System.

Infographic: One Year of Agent Destruction Operations at PCAPP
Download Infographic

More PCAPP Technology Articles

  • Agent-filled 4.2-inch mortar rounds are monitored during Static Detonation Chamber agent trial testing operations at the Pueblo Chemical Agent-Destruction Pilot Plant.

    Static Detonation Chamber Trial Testing Concludes

    Published: May 13, 2022
  • After a chemical weapon is drained of agent and rinsed with high-pressure hot water, Agent Washwater Separator tanks collect fluid before sending it to Agent Neutralization Reactors to destroy the mustard agent. The Pueblo Chemical Agent-Destruction Pilot Plant has two tanks, providing the plant with redundancy when neutralizing agent.

    Backup Systems Allow for Safe Repairs

    Published: March 28, 2022
  • All chemical weapons from the Colorado stockpile are sorted into four color-coded lots to reduce delays in destruction due to problematic munitions.

    Color Coding Boosts Chemical Weapon Destruction

    Published: March 23, 2022
  • A Pueblo Chemical Agent-Destruction Pilot Plant ordnance technician holds the first 4.2-inch mortar round to be processed in the Static Detonation Chamber complex.

    First Agent Destroyed in Static Detonation Chamber

    Published: February 22, 2022
  • Static Detonation Chamber ordnance technicians Rachelle S. and Mike W. remove a 57mm conventional ammunition round from its fiber tube during SDC non-agent Trial Burn Testing.

    Conventional Explosives Demonstrate Static Detonation Chamber Capability

    Published: February 15, 2022
  • Munitions transporters unload inert 4.2-inch mortar rounds from the back of a Modified Ammunition Vehicle during Integrated Operations Demonstrations. (Portions of this photograph have been blurred in accordance with Department of Defense guidelines)

    Pueblo Static Detonation Chamber Team Demonstrates Operations

    Published: February 2, 2022
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Recent PCAPP Articles

  • Colorado Commission Welcomes New Member

    Colorado Commission Welcomes New Member

    May 4, 2022
  • Backup Systems Allow for Safe Repairs

    Backup Systems Allow for Safe Repairs

    March 28, 2022
  • Plant Closely Monitors Permit Requirements

    Plant Closely Monitors Permit Requirements

    February 24, 2022
  • New Bechtel Pueblo Team Manager Takes Helm

    New Bechtel Pueblo Team Manager Takes Helm

    November 18, 2021
  • Redevelopment CEO Appointed to Colorado Advisory Commission

    Redevelopment CEO Appointed to Colorado Advisory Commission

    October 28, 2021
  • Mentorship Critical to Pueblo Plant Maintenance

    Mentorship Critical to Pueblo Plant Maintenance

    August 30, 2021

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Program Executive Office, Assembled Chemical Weapons Alternatives (PEO ACWA)