Blue Grass Chemical Weapons Stockpile Destruction – Richmond, Kentucky

  • Department Of Defense - Program Executive Office Assembled Chemical Weapons Alternatives
Project Value

$1.1B Parsons/$5.3B Joint Venture


Federal Infrastructure


Engineering, Program/Construction Management (PM/CM)

The Blue Grass Chemical Agent Pilot Plant is a 73-acre site located within the Blue Grass Army Depot in Richmond, Kentucky. The project processed 523 tons of chemical weapons that had been stored on the Depot. The Chemical Weapons Convention Treaty, an international arms control treaty the United States ratified in 1997, prohibits the development, production, acquisition, stockpiling, retention, transfer, or use of chemical weapons by all members.

On July 7, 2023, the U.S. announced the final munition in the nation’s obsolete stockpile of chemical weapons was safely destroyed, an accomplishment months ahead of schedule.

Under the Chemical Weapons Convention Treaty, the U.S. was obligated to destroy its stockpile of chemical warfare agents. The stockpile in Richmond, KY was the most technically challenging due to the type of agents, how they were weaponized, and the deteriorated condition the stockpile. The agents consisted of the blister agent Mustard in 155mm projectiles, the nerve agent Saran (GB) contained in 8-inch projectiles and M55 rockets, and the nerve agent VX contained in 155mm projectiles and M55 rockets.

Overcoming Safety Concerns

Concerns over safety prompted the Department of Defense to pursue innovative technologies, as opposed to incineration, to destroy the remaining chemical weapons. Parsons was on the joint-venture project team that designed unique processes incorporating first-of-a-kind technologies necessary to complete the mission safely:

  • Static detonation chambers
  • Robotic reverse assembly systems
  • Chemical neutralization
  • Thermal decontamination
  • X-ray inspection systems
  • Multiple agent monitoring systems
  • Explosive containment structures
  • Cascade ventilation systems for agent containment

Our Role In The U.S. Chemical Weapons Destruction

We were responsible for planning and executing the design, construction, systemization, demonstration, operation, and closure of the facility, incorporating these technologies. All work was completed under the observation of a rotating group of international treaty inspectors.

Project Scope

  • Designer of record
  • Provide first-of-a-kind (FOAK) agent processing equipment
  • Environmental permitting
  • Environmental compliance
  • System Safety
  • Waste Management
  • 1/3 of operations Staffing

Innovative Technology At Work

Most of the chemical weapons stored at the Blue Grass Army Depot were destroyed using neutralization; however, the use of an explosive destruction technology (EDT) was necessary to destroy a portion of the inventory that presented a problem to process in the main plant. Learn more about these technologies below.

Learn More

Parsons has an extensive history of delivering solutions to our federal clients that make the world a safer place and benefit the environment. Learn more about our complex infrastructure delivery solutions to treat munitions production waste safely and effectively.

Be the first to receive updates about Parsons news, events, and innovations. Subscribe Today!

Back to top
facebook-pixel linkedin-pixel linkedin pixel focused image