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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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      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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Destruction Campaign Progresses at Pueblo Plant

Published: November 15, 2019 | Category: Events, PCAPP News
An ordnance technician at the Pueblo Chemical Agent-Destruction Pilot Plant reconfigures a 4.2-inch mortar round from its ready-to-use state to one ready for processing and destruction.

An ordnance technician at the Pueblo Chemical Agent-Destruction Pilot Plant reconfigures a 4.2-inch mortar round from its ready-to-use state to one ready for processing and destruction.

The U.S. Army Pueblo Chemical Depot is home to three types of munitions filled with mustard agent, and the Pueblo Chemical Agent-Destruction Pilot Plant is working to destroy the weapons in three campaigns to meet its goal of finishing by Dec. 31, 2023.

The first of these campaigns, now underway after starting in 2016, is destroying the depot’s store of 155mm projectiles. The 155mm campaign surpassed 50% of munitions destroyed this summer. When that’s done, the plant’s equipment will be reconfigured to dismantle, drain and recycle the smaller 105mm projectiles in a second campaign.

“That will most likely happen at the end of calendar year 2020,” said Kim Jackson, plant manager, at the Sept. 25 Colorado Chemical Demilitarization Citizens’ Advisory Commission meeting in Boone, Colorado.

A third campaign will destroy the depot’s 4.2-inch mortar rounds, which are not suitable for the main plant’s automated processing systems. The rounds are being baseline reconfigured – unpacked from their wooden storage boxes and removed from cylindrical fiberboard storage tubes before having their energetic components removed. They then are packed away in covered pallets for destruction later in Static Detonation Chambers, three of which will be assembled near the plant.

More than half of the 4.2-inch mortars have gone through the reconfiguration process already. The 105mm projectiles also had to go through baseline reconfiguration before they were considered ready for their future journey through the main plant’s robotic lines.

“Campaigns give us measurable milestones to celebrate as we operate the plant safely and continue eliminating the chemical weapons stockpile in Colorado,” said Walton Levi, site project manager, PCAPP.

Two earlier campaigns, from March 2015 to December 2018, eliminated 951 weapons and 3.82 U.S. tons of agent using the Explosive Destruction System, a transportable device housed within an environmental enclosure with its own air filtration system.

PCAPP Event Articles

  • Pueblo Chemical Agent-Destruction Pilot Plant workers celebrate the destruction of 50% of the mustard agent in the Colorado chemical weapons stockpile on Feb. 26. An April 4 public celebration to mark the milestone has been canceled due to the COVID-19 pandemic.

    Pueblo Event Marking Mustard Agent Milestone Canceled

    Published: March 17, 2020
  • An ordnance technician at the Pueblo Chemical Agent-Destruction Pilot Plant reconfigures a 4.2-inch mortar round from its ready-to-use state to one ready for processing and destruction.

    Destruction Campaign Progresses at Pueblo Plant

    Published: November 15, 2019
  • Static Detonation Chamber components are placed on their concrete pad at the Pueblo Chemical Agent-Destruction Pilot Plant in Colorado. Three SDC units will be assembled to aid the main plant in its mission to destroy the chemical weapons stockpile at the U.S. Army Pueblo Chemical Depot.

    Pueblo Plant Begins Static Detonation Chamber Assembly

    Published: November 12, 2019
  • The Pueblo Chemical Agent-Destruction Pilot Plant is pursuing a final Part B Hazardous Waste Operating Permit, which will govern the processing of the remaining chemical munitions stockpile.

    Pueblo Plant Pursues Final Operating Permit for Main Process

    Published: November 8, 2019
  • Pleasant View Middle School students, along with teacher Todd Seip, watch training specialist Kent Ladd point out the parts and contents of a chemical weapon during a Pueblo Chemical Agent-Destruction Pilot Plant Training Facility tour.

    Chemical Demilitarization in the Classroom

    Published: October 30, 2019
  • A worker at the Pueblo Chemical Agent-Destruction Pilot Plant places 105mm projectiles that have been unboxed and reconfigured for processing on a pallet using a motorized lift assist.

    Pueblo Plant Destroys More Than 1,000 U.S. Tons of Chemical Warfare Agent

    Published: October 2, 2019
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