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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 Plant Achieves Monthly Processing Record

Published: July 16, 2020 | Category: Environment, PCAPP News, Technology
An ordnance technician uses a lift-assist device at the Pueblo Chemical Agent-Destruction Pilot Plant to place a 155mm projectile containing mustard agent onto a conveyor belt in the Enhanced Reconfiguration Building.

An ordnance technician uses a lift-assist device at the Pueblo Chemical Agent-Destruction Pilot Plant to place a 155mm projectile containing mustard agent onto a conveyor belt in the Enhanced Reconfiguration Building. Munitions are transported into the Explosion Containment Room for the removal of explosives. June 2020 saw the plant hit a new record number of munitions processed, with 14,126 155mm projectiles eliminated from the stockpile.

The Pueblo Chemical Agent-Destruction Pilot Plant reported its best month ever for processing munitions at the end of June 2020.

“We processed 14,126 of the 155mm projectiles in June,” said Walton Levi, site project manager, PCAPP. “That’s a substantial reduction in the stockpile of aging munitions containing mustard agent.”

Obsolete weapons containing HD and HT mustard blister agent have been stored at the U.S. Army Pueblo Chemical Depot since the 1950s, and are being destroyed along with the rest of the remaining U.S. chemical munitions stockpile at the Blue Grass Army Depot near Richmond, Kentucky, in accordance with global treaty obligations and a Congressional mandate.

The 155mm destruction campaign is on track to be completed later this year. After that, the main plant will be reconfigured to destroy 105mm projectiles. A third group of weapons, 4.2-inch mortar rounds, have been unboxed, prepped and stored for destruction later in three Static Detonation Chamber units that will be ready for operation later this year. The SDC units will also destroy any other problematic lots of munitions not suited for processing in the main plant.

“The main plant achieved this record performance in June while overcoming technical challenges and proceeding safely with operations during the COVID-19 pandemic utilizing the universal Centers for Disease Control and Prevention guidance,” Levi said.

PCAPP Technology Articles

  • A Pueblo Chemical Agent-Destruction Pilot Plant ordnance technician and baseline reconfiguration team member removes the rear assembly from a 4.2-inch mortar round in June of 2020. The plant received state approval Jan. 20 to destroy the HT 4.2-inch mortars in the main plant using Improved Cavity Access Machines.

    Full Approval Granted, Pueblo Plant Destroying First of Two Mortar Types

    Published: January 30, 2023
  • Two members of the Pueblo Chemical Agent-Destruction Pilot Plant’s Static Detonation Chamber crew unload 4.2-inch mortar rounds for elimination on December 7 as part of the complex’s best two months of destruction numbers for this category of munitions.

    Pueblo Static Detonation Chamber Complex Marks Best Month

    Published: January 18, 2023
  • A PCAPP crew assesses a pallet of 4.2-inch mortar rounds as part of the start of the second phase of the final campaign in the elimination of the Colorado Chemical weapons stockpile, which began on Dec. 1 using improved technology.

    Pueblo Plant Begins Second Phase of Final Destruction Campaign

    Published: December 8, 2022
  • Cavity Access Machines recently went through a significant redesign to accommodate 4.2-inch mortar round processing in the main plant, resulting in the development of Improved Cavity Access Machines, or ICAMs.

    Pueblo Plant Preparing to Destroy Mortar Rounds

    Published: October 27, 2022
  • A pallet of previously rejected 155mm projectiles awaits destruction. Approximately 200 of the 155mm projectiles were rejected by the plant’s automated robotic destruction systems. The rejected munitions have been re-introduced into the system, now upgraded with the devices.

    Safe Destruction of Previously Rejected Projectiles Moves Forward in Pueblo Plant

    Published: September 13, 2022
  • The Improved Cavity Access Machine was proposed to safely destroy 4.2-inch mortar rounds in the Pueblo Chemical Agent-Destruction Pilot Plant automated process. Based on existing Cavity Access Machine technology, the ICAM uses a vacuum-powered probe to remove agent.

    Improved Equipment Could Accelerate Destruction at Pueblo Plant

    Published: July 5, 2022
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