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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
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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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Environmental Activities at PCAPP

  • PCAPP Project Stages
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  • Public Involvement at PCAPP
  • PCAPP Media Library
    • PCAPP News
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    • PCAPP Briefings, Reports, and Downloads
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  • PCAPP Destruction Technologies
    • Neutralization Followed by Biotreatment
    • Explosive Destruction System
    • Static Detonation Chamber
  • Contingency Planning for Off-site Shipment of Hydrolysate at Pueblo Chemical Depot
  • National Environmental Policy Act (NEPA) Background Information
  • PCAPP Public Involvement Meeting Summaries
  • Environmental Activities at PCAPP
    • Archive: Environmental Activities at PCAPP
Home Pueblo Chemical Agent-Destruction Pilot Plant (PCAPP) Environmental Activities at PCAPP

The Pueblo Chemical Agent-Destruction Pilot Plant team is committed to destroying the chemical weapons stockpile at the U.S. Army Pueblo Chemical Depot while protecting the workforce, public and environment.

The PCAPP team fulfills this commitment by adhering to numerous local, state and federal laws and regulations. This includes the Resource Conservation and Recovery Act, which gives the U.S. Environmental Protection Agency authority to control hazardous waste, including generation, transportation, treatment, storage and disposal, to protect human health and the environment.

In addition, PCAPP operates under a hazardous waste permit from the Colorado Department of Public Health and Environment. This permit was granted after numerous Army studies determined the destruction of the stockpile would have no significant impacts to human health or the environment. Throughout the lifecycle of the plant, any major permit modifications require a public comment period and approval by the state. We welcome your feedback and encourage your participation in this process.

Learn more about our permits and environmental activities by accessing the links and information on this page, or by contacting the Pueblo Chemical Stockpile Outreach Office at pueblooutreach@iem.com or (719) 546-0400.

Recent Permitting Activity

The U.S. Army and Bechtel are applying for the Class 2 Permit Modification Request B046, Waste Analysis Plan, to address the increase in maintenance interference observed during the analysis of Depot Area Air Monitoring System samples.

  • PCAPP Permit Modification B046
  • Final_PM-B046 Public Mailer
  • Final_PM-B046 Newspaper

The U.S. Army and Bechtel are applying for a Class 2 Permit Modification Request S006, proposed revisions to include laboratory method improvements to address increase in instrument maintenance.

  • PCD Permit Modification S006
  • Final_PM-S006 Public Mailer
  • Final_PM-S006 Newspaper

The public comment period for PMR B046 and S006 is from April 21, 2022, through June 20, 2022. Written comments regarding this permit modification request must be submitted to:

Mr. Kevin Mackey, Colorado Department of Public Health and Environment
Hazardous Materials and Waste Management Division
HMWMD-B2, 4300 Cherry Creek Drive South
Denver, Colorado 80246-1530
Email: Kevin.Mackey@state.co.us

The U.S. Army and Bechtel are applying for a Class 2 Permit Modification, B050 FOAK 155mm, to install a First-of-a-Kind 155mm Cavity Access Machine in the Munitions Washout System.

  • FINAL_PM-B050 Mailer
  • FINAL_PM-B050 Newspaper

The public comment period is from May 10, 2022, through July 09, 2022. Written comments regarding this permit modification request must be submitted to:

Mr. Kevin Mackey, Colorado Department of Public Health and Environment
Hazardous Materials and Waste Management Division
HMWMD-B2, 4300 Cherry Creek Drive South
Denver, Colorado 80246-1530
Email: Kevin.Mackey@state.co.us

The U.S. Army and Bechtel are applying for a Class 2 Permit Modification S011, Leaker and Reject Processing.

  • FINAL_PM-S011 Mailer
  • FINAL_PM-S011 Newspaper

The public comment period is from May 10, 2022, through July 09, 2022. Written comments regarding this permit modification request must be submitted to:

Mr. Kevin Mackey, Colorado Department of Public Health and Environment
Hazardous Materials and Waste Management Division
HMWMD-B2, 4300 Cherry Creek Drive South
Denver, Colorado 80246-1530
Email: Kevin.Mackey@state.co.us

The U.S. Army and Bechtel are applying for a Class 2 Permit Modification, B052 Leaker and Reject Processing.

  • FINAL_PM-B052 Mailer
  • FINAL_PM-B052 Newspaper

The public comment period is from May 10, 2022, through July 09, 2022. Written comments regarding this permit modification request must be submitted to:

Mr. Kevin Mackey, Colorado Department of Public Health and Environment
Hazardous Materials and Waste Management Division
HMWMD-B2, 4300 Cherry Creek Drive South
Denver, Colorado 80246-1530
Email: Kevin.Mackey@state.co.us

The U.S. Army and Bechtel are applying for a Class 2 Permit Modification, B055 Flushing Activities for Yard Piping-Revised

  • FINAL_PM-B055 Newspaper
  • FINAL_PM-B055 Mailer

The public comment period is from May 10, 2022, through July 09, 2022. Written comments regarding this permit modification request must be submitted to:

Mr. Kevin Mackey, Colorado Department of Public Health and Environment
Hazardous Materials and Waste Management Division
HMWMD-B2, 4300 Cherry Creek Drive South
Denver, Colorado 80246-1530
Email: Kevin.Mackey@state.co.us

Key Permit Documents:

Resource Conservation and Recovery Act Permit

Download PDF

Environmental Impact Statement

Download PDF

Explore PCAPP Permitting History:

Archives

Colorado Environmental Oversight Links:

  • CDPHE PCAPP Program Page
  • CDPHE Colorado Chemical Demilitarization Citizens’ Advisory Commission Page

Get involved.

Public Meetings:

Plant and permitting updates are provided during public meetings known as the Colorado Chemical Demilitarization Citizens’ Advisory Commission. Please see below for future meeting dates and forums.

May 25, 2022 – Colorado PWG/BUG/CAC

Permitting Working Group, Biotreatment Utilization Group and Colorado Citizens’ Advisory Commission Meetings will be held online on May 25, 2022, at 2 p.m. MDT.

Computer: Zoom – https://us02web.zoom.us/j/85125795932
Phone: 1 346 248 7799 Meeting ID: ‪851 2579 5932#

For information, please contact the Pueblo Chemical Stockpile Outreach Office at (719) 546‑0400, or pueblooutreach@iem.com

June 1, 2022 – Colorado permit modification request public meetings

There will be a series of public meetings to discuss multiple Permit Modification Requests on June 1, 2022, starting at 1:30 p.m. MDT. The in-person meeting will be held at the Pueblo Chemical Stockpile Outreach Office, 104 W. B St., Pueblo.

For information, please contact the Pueblo Chemical Stockpile Outreach Office at (719) 546‑0400, or pueblooutreach@iem.com

June 29, 2022 – Colorado PWG/BUG/CAC

Permitting Working Group, Biotreatment Utilization Group and Colorado Citizens’ Advisory Commission Meetings will be held on June 29, 2022.
For information, please contact the Pueblo Chemical Stockpile Outreach Office at (719) 546‑0400, or pueblooutreach@iem.com

July 27, 2022 – Colorado PWG/BUG/CAC

Permitting Working Group, Biotreatment Utilization Group and Colorado Citizens’ Advisory Commission Meetings will be held on July 27, 2022.
For information, please contact the Pueblo Chemical Stockpile Outreach Office at (719) 546‑0400, or pueblooutreach@iem.com

Sept. 28, 2022 – Colorado PWG/BUG/CAC

Permitting Working Group, Biotreatment Utilization Group and Colorado Citizens’ Advisory Commission Meetings will be held on Sept. 28, 2022.
For information, please contact the Pueblo Chemical Stockpile Outreach Office at (719) 546‑0400, or pueblooutreach@iem.com

Oct. 26, 2022 – Colorado PWG/BUG/CAC

Permitting Working Group, Biotreatment Utilization Group and Colorado Citizens’ Advisory Commission Meetings will be held on Oct. 26, 2022.
For information, please contact the Pueblo Chemical Stockpile Outreach Office at (719) 546‑0400, or pueblooutreach@iem.com

Dec. 14, 2022 – Colorado PWG/BUG/CAC

Permitting Working Group, Biotreatment Utilization Group and Colorado Citizens’ Advisory Commission Meetings will be held on Dec. 14, 2022.
For information, please contact the Pueblo Chemical Stockpile Outreach Office at (719) 546‑0400, or pueblooutreach@iem.com

View meeting summaries from previous CAC meetings.

Information Repositories:

Information regarding the Pueblo Chemical Agent-Destruction Pilot Plant project is available at various community locations. Masks are recommended but no longer required at all repository locations. Inquiries should be directed to Ron Eccher, Public Outreach Manager, ronald.eccher@iem.com.

  • The official and primary information repository for the PCAPP project can be found at Robert Hoag Rawlings Public Library located at 100 E. Abriendo Ave., Pueblo, Colorado, 81004. This repository has every current document associated with the Resource Conservation and Recovery Act (RCRA) process as it pertains to the PCAPP project.
  • The Pueblo Chemical Stockpile Outreach Office, located at 104 W. B St. in Pueblo, Colorado, which also houses a project information repository, is open to the public during normal business hours. Please call us at (719) 546-0400 with questions.
  • Additional repositories are located in the following locations:
    • McHarg Park Community Center
      405 2nd Lane
      Avondale, CO 81022
    • Boone Community Center
      421 E. First St.
      Boone, CO 81025

For a complete list of documents available at the Information Repositories, please see the Index.

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