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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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Agent Operations Resume at Pueblo Destruction Facility

Published: June 15, 2018 | Category: PCAPP News
Ordnance technicians stand next to a pallet of reconfigured 155mm projectiles to commemorate the restart of agent operations at the Pueblo Chemical Agent-Destruction Pilot Plant June 13.

Ordnance technicians stand next to a pallet of reconfigured 155mm projectiles to commemorate the restart of agent operations at the Pueblo Chemical Agent-Destruction Pilot Plant June 13.

The Pueblo Chemical Agent-Destruction Pilot Plant resumed agent operations this week by sending mustard-filled munitions through its washout system and the drained mustard through the neutralization process.

“It has not been easy, but I am pleased to tell you we have reached the point in restarting operations where mustard agent is being neutralized and 155mm munitions are again being eliminated as part of the chemical demilitarization process,” said Greg Mohrman, site project manager, PCAPP.

A year after operations began and more than 43,000 munitions destroyed, most activities were paused Sept. 7, 2017, in part due to the impact of steam and solids on Agent Neutralization Reactors.

The first of two reactors was successfully tested and approved for use with agent June 12. Mohrman said the focus of the resumption of operations has been on the reactors, which required significant engineering and maintenance efforts to deal with steam-induced vibration and the failure of vibration isolators in reactor circulation systems.

“The PCAPP team has done a tremendous job working together to solve challenges, and has done so with professionalism and enthusiasm,” Mohrman said.

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
  • Ethylene glycol and monochlorobenzene are being used as mustard agent surrogates during testing of the Pueblo Chemical Agent-Destruction Pilot Plant’s Static Detonation Chamber units.

    Mustard Agent Alternatives Used in Testing

    Published: January 12, 2022
  • Control room footage shows Pueblo Chemical Agent-Destruction Pilot Plant workers preparing a cardboard box containing an empty, inert projectile for trial burn testing in a PCAPP Static Detonation Chamber unit.

    Detailed Timeline Guiding Pueblo Static Detonation Chamber Testing

    Published: December 2, 2021
  • Pueblo Chemical Agent-Destruction Pilot Plant ordnance technicians place an empty, inert projectile into a cardboard box to begin trial burn testing at the PCAPP Static Detonation Chamber.

    Pueblo Static Detonation Chamber Trial Burn Testing Begins

    Published: November 2, 2021
  • Three Static Detonation Chamber units at the Pueblo Chemical Agent-Destruction Pilot Plant will augment the main plant by destroying 4.2-inch mortar rounds containing mustard agent. Phase one testing of the units slated to begin in late 2021.

    First Phase of Pueblo Detonation Testing to Begin

    Published: October 8, 2021
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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)