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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: Destroy Chemical Weapons Stockpile

      Vision: Chemical Weapons Free by 2023

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  • BLUE GRASS
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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
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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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PCAPP Project Stages

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    • Neutralization Followed by Biotreatment
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  • Contingency Planning for Off-site Shipment of Hydrolysate at Pueblo Chemical Depot
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Home Pueblo Chemical Agent-Destruction Pilot Plant (PCAPP) PCAPP Project Stages

The Pueblo Chemical Agent-Destruction Pilot Plant is safely and efficiently destroying the stockpile of chemical weapons stored at the U.S. Army Pueblo Chemical Depot. The pilot plant is using neutralization followed by biotreatment as the technology to destroy munitions containing more than 2,600 tons of mustard agent. Additionally, construction continues for three Static Detonation Chamber units that will augment the main plant by destroying problematic chemical munitions that cannot be easily processed using the main plant’s automated equipment.

In September 2002, the Bechtel Pueblo Team was awarded the systems contract to design, construct, systemize, pilot test, operate and close the plant. The Program Executive Office, Assembled Chemical Weapons Alternatives program, known as PEO ACWA, is the Department of Defense agency responsible for managing the destruction of the Pueblo chemical weapons stockpile and oversees the Bechtel Pueblo Team contract.

Six Project Stages

Stage 1: DESIGN

Facility is specifically designed to safely and efficiently destroy chemical weapons.

Status: Complete

Stage 2: CONSTRUCTION

Construction was led by a team that has successfully designed, built and/or operated all of the existing chemical destruction facilities in the United States.

Status: Complete

Stage 3: SYSTEMIZATION

All machinery, equipment and processes were operated and tested with water or simulants to ensure each functions together as an integrated system.

Status: Complete

Stage 4: PILOT TESTING

Pilot testing in the main plant began on Sept. 7, 2016, with the gradual introduction of actual agent-filled munitions into the automated system.

Pilot testing in the main plant is complete and in compliance with all safety requirements. Environmental permits are pending. The remaining agent-filled projectiles are being destroyed.

Status: Complete

Stage 5: OPERATIONS

Operations at the Pueblo plant denotes that the plant is performing as it was designed, with munitions being destroyed via neutralization followed by biotreatment. The main plant functions as a fully operational facility with certification under a Resource Conservation and Recovery Act Part B Permit.

Status: Underway

Stage 6: CLOSURE

Operations are complete, and the facility is closed. Equipment is dismantled, decontaminated and removed in accordance with agreements between the State of Colorado and the U.S. Army.

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