PEO Assembled Chemical Weapons Alternatives

PEO Assembled Chemical Weapons Alternatives Welcome to the official Program Executive Office, Assembled Chemical Weapons Alternatives Facebook Army Pueblo Chemical Depot, now known as the U.S.

Welcome to the Program Executive Office, Assembled Chemical Weapons Alternatives’ (PEO ACWA) official page. Our mission was the safe and environmentally sound destruction of the chemical weapons stockpiles stored at the Blue Grass Army Depot in Kentucky and the U.S. Chemical Materials Activity–West, completed in Colorado in June 2023, and at the Blue Grass Army Depot in Kentucky in July 2

023. We are now responsible for the closure of the Pueblo and Blue Grass plants. We hope you'll join the conversation here on Facebook and check out our profiles on Flickr and YouTube. www.flickr.com/photos/acwa/
www.youtube.com/peoacwa

For more information, please visit our website: www.peoacwa.army.mil

General Information:
While this is an open forum, it's also a family friendly one, so please keep your comments and wall posts clean. In addition to keeping it family friendly, we ask that you follow our posting guidelines noted below. If you do not comply, your message will be removed:

-We do not allow graphic, obscene, explicit or racial comments or submissions, nor do we allow comments that are abusive, hateful or intended to defame any individual(s) or organization.

-We do not allow solicitations or advertisements. This includes promotion or endorsement of any financial, commercial or non-governmental agency. Similarly, we do not allow attempts to defame or defraud any financial, commercial or non-governmental agency.

-We do not allow comments that suggest or encourage illegal activity.

-You participate at your own risk, taking personal responsibility for your comments, your username and any information provided. ACWA also retains the right to delete any comments that may not be covered by these guidelines. Also, the appearance of external links on this site does not constitute official endorsement on behalf of the U.S. Army or Department of Defense (DOD). For more information, visit the DOD Social Media user agreement at:
http://www.defense.gov/socialmedia/user-agreement.aspx.

The skyline at the Blue Grass plant is changing. Demolition of main plant support structures, such as the filter banks, ...
05/14/2026

The skyline at the Blue Grass plant is changing. Demolition of main plant support structures, such as the filter banks, hydrolysate storage tanks, medical building and other buildings, is well underway.

Demolition began April 15 on the facility that was the centerpiece of chemical weapons destruction at the Blue Grass pla...
04/28/2026

Demolition began April 15 on the facility that was the centerpiece of chemical weapons destruction at the Blue Grass plant.

“It’s hard to believe we are almost at the end,” said Shannon Pendergrass, site project manager, Blue Grass Chemical Agent-Destruction Pilot Plant, or BGCAPP. “This milestone has been the goal for Blue Grass plant personnel for more than two years. An incredible amount of focus and coordination was required to get to this point.”

The demolition subcontractor, Independence Excavating, is tearing down the main plant. The first structures to come down were the Munitions Demilitarization Building filter bank clean-air exhaust stacks.

“Demolition is the most visible work activity in the closure phase,” said Joe Curcio, project manager, Bechtel Parsons Blue Grass, or BPBG, the systems contractor chosen by the Program Executive Office, Assembled Chemical Weapons Alternatives to design, build, test, operate and close BGCAPP. “Through every phase of our project safety has been the constant theme and it remains the focus during demolition.”

This point was the culmination of dozens of small milestones, each step focused on safety. The work was guided by a detailed permit approved and monitored by the Kentucky Department for Environmental Protection, or KDEP.

As those milestones were reached, equipment was cleaned and dismantled and rooms were decontaminated of chemical agent, the results were confirmed by unventilated monitoring tests. KDEP officials have verified that BGCAPP is free from any chemical-agent liability.

Decommissioning and decontaminating the main plant began a few days after the last chemical weapon was destroyed July 7, 2023. In the months since then, workers and operators performed almost 1,500 entries in Demilitarization Protective Ensembles and more than 3,000 protectively masked entries to effectively decontaminate and in many cases, remove agent-contaminated equipment, said Mike Noyes, plant manager, BPBG.

The final steps before demolition began were removing universal and electronic waste, capping off water lines and fire suppression systems and shutting off the electricity.

The two Static Detonation Chamber units, where drained, containerized rocket warheads, classified as agent-contaminated secondary waste, were processed, are also ready for demolition.

The team remains vigilant for the safety of the workforce, the community and the environment.

The BGCAPP team destroyed more than 523 tons of mustard and nerve agent stored at the depot since the 1940s. The demolition stage is expected to be complete in 2027, followed by administrative close-out in 2028.

04/20/2026

A significant milestone was reached at the Blue Grass plant. On April 16, the demolition stage began with the felling of the clean-air exhaust stacks. These stacks served as an integral part of the cascading air ventilation system at the main plant.

This point is the culmination of dozens of small milestones, each step focused on safety.

✅ Equipment was cleaned and dismantled
✅ Rooms were decontaminated of chemical agent and the results were confirmed by unventilated monitoring tests
✅ Kentucky Department for Environmental Protection verified the Blue Grass plant is free from all chemical agent and ready for demolition

A portion of this video was blurred in accordance with Department of War guidelines.

This month’s Colorado Chemical Demilitarization Citizens’ Advisory Commission public meeting will be held online tomorro...
02/24/2026

This month’s Colorado Chemical Demilitarization Citizens’ Advisory Commission public meeting will be held online tomorrow at 3 p.m. MT. Contact outreach staff at (719) 289-3761 or email [email protected] prior to the meeting to obtain a telephone number or link to join online. 💻

02/23/2026

PEO ACWA is scheduled to start demolition of the Blue Grass and Pueblo plants later this year. Watch our final annual program video to see the closure milestones ACWA achieved in 2025. 🔊

As of today, Feb. 2, 2026, the PEO ACWA Flickr account will no longer be updated and will be deactivated at the end of t...
02/02/2026

As of today, Feb. 2, 2026, the PEO ACWA Flickr account will no longer be updated and will be deactivated at the end of the month.

Thank you for engaging with us on Flickr, and please continue to visit our page for future program closure updates.

As closure activities continue at the Pueblo plant, the first building to leave the plant’s footprint was transferred on...
01/28/2026

As closure activities continue at the Pueblo plant, the first building to leave the plant’s footprint was transferred on Jan. 13, when the Biotreatment Area Mobile Laboratory left the property for a move to PuebloPlex, the local redevelopment authority.

01/21/2026

A Colorado public meeting will be held online via the Zoom platform at 2 p.m. MT Jan. 21 to discuss Permit Modification Request B084, Fixative Application to Duct Work.

To participate, click this link or call 1 (719) 359-4580, and enter Meeting ID: 857 9355 0081 #

The public comment period for B084 runs through Feb. 26, 2026. Contact Venissa Ledesma at (303) 692-3432 if you have special accessibility needs. 💻
https://us02web.zoom.us/j/84432791550

01/05/2026

The Blue Grass plant team completed a busy year of closure activities in 2025, reaching several milestones while completing the destruction of the remaining drained, containerized rocket warheads.

Watch our final annual video to see plant accomplishments and milestones throughout the year. 🔊

12/11/2025

The appearance of the Pueblo plant changed dramatically in 2025 as workers continued to safely close the site that destroyed Colorado’s stockpile of weaponized chemical agent.

Press play to view our final annual video of PCAPP’s milestones and accomplishments.▶️

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Aberdeen Proving Ground, MD

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