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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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Pueblo Plant Achieves Chemical Agent Destruction Milestone

Published: April 2, 2019 | Category: Events, PCAPP News
A Pueblo Chemical Agent-Destruction Pilot Plant worker inspects 155mm projectiles Nov. 13, 2018, in the Agent Processing Building. With more than 660 U.S. tons of mustard agent destroyed, PCAPP has eliminated 25% of the chemical munitions stockpile that has been stored at the Pueblo Chemical Depot since the 1950s.

A Pueblo Chemical Agent-Destruction Pilot Plant worker inspects 155mm projectiles Nov. 13, 2018, in the Agent Processing Building. With more than 660 U.S. tons of mustard agent destroyed, PCAPP has eliminated 25% of the chemical munitions stockpile that has been stored at the Pueblo Chemical Depot since the 1950s.

The acting site project manager for the Pueblo Chemical Agent-Destruction Pilot Plant announced April 1 that 25% of the mustard agent stockpile stored at the Pueblo Chemical Depot has been destroyed.

“While we still have much work ahead of us, this achievement demonstrates our continued commitment to the international community to safely eliminate all chemical weapons in the U.S. inventory,” said Walton Levi, acting site project manager, PCAPP.

The depot houses the largest portion of the United States’ remaining chemical weapons stockpile, safely storing more than 780,000 mustard agent-filled munitions in the form of 155mm and 105mm projectiles as well as 4.2-inch mortars since the early 1950s.

Recently the plant reported passing the 100,000 mark in terms of destruction of 155mm munitions in the plant. As of March 31, that number had surpassed 112,400.

“With the destruction of each 155mm munition, we also eliminate 11.7 pounds of mustard agent,” Levi said. “Destroying more than 112,400 projectiles in the plant also marks the eradication of more than 660 U.S. tons of agent, and that amount exceeds 25% of the more than 2,600 tons of chemical agent in the PCD stockpile.”

The site started agent destruction operations in March 2015 with the activation of the U.S. Army’s Explosive Destruction System, followed by start-up of the main plant in September 2016 using chemical and biochemical processes to eliminate mustard agent.

The team is working toward the safe elimination of chemical weapons in the U.S. stockpile by a congressionally-mandated deadline of Dec. 31, 2023.

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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Other Recent PCAPP News

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    Pueblo Static Detonation Chamber Team Demonstrates Operations

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