Twin Cities Army Ammunition Plant

Restoration Advisory Board (RAB)

Landscape with trees and fog

Meeting Summaries

Next RAB Meeting:

The Army is hosting a RAB meeting on Mar. 15, 2022, at 7:00 p.m. CST to update the community on the latest status of cleanup at TCAAP. This meeting is being conducted virtually to maintain social distancing and protect the health of the community during the Coronavirus Disease 2019 (COVID-19) public health emergency.

The RAB meeting will be held on MS teams. If you’d prefer you can also dial into a teleconference line. Please contact Kay Toye at (520) 903-4363 or email: for information on how to access the RAB meeting via internet or phone.

The presentation slides can be downloaded below before the meeting. Draft minutes from the Dec. 14, 2021 meeting are also available for review and feedback.

Last RAB Meeting:

  • 7/20/2021 – The Army hosted an Open House at the Arden Hills Army Training Site.  Army personnel (as well as other government agency representatives and Army contractors) answered questions about the Proposed Plan to address contamination in Round Lake. Poster stations were set up in the AHATS gymnasium with some of the same information presented at the RAB meeting later that evening.
  • 7/20/21 – A TCAAP RAB Meeting was held virtually. This RAB meeting focused on cleanup activities related to Round Lake. The Army responded to questions on the Supplemental RI/FS, provided an explanation of the Round Lake Proposed Plan, and responded to questions on the Proposed Plan.  At the end of the RAB meeting the Army accepted oral comments on the Proposed Plan to address contamination in Round Lake.  Written comments were accepted as part of the public comment period from Jul. 9 – Aug. 13, 2021.
  • 9/21/2021 – A TCAAP RAB Meeting was held virtually. The Army introduced the new contractor supporting cleanup activities at the former TCAAP and provided a groundwater sampling update, update on the well inspection report, a summary of actions taken since April 2021, an update on the optimization projects for OU1 and OU2, results of the Vapor Intrusion study at OU2 Site A, an update on the Site K treatability study plans, and a summary of the Round Lake Supplemental Remedial Investigation and Feasibility. At this meeting the RAB members agreed to meet on Dec. 14, 2021 as well as Mar. 15, Jun. 21, May 17, and Aug. 16 in 2022
    • RAB Presentation Sep. 21, 2021
    • Meeting Minutes – Sep. 21, 2021
  • 12/14/2021 – A TCAAP RAB Meeting was held virtually. The Army provided a groundwater sampling update, update on the well inspection report, a summary of actions taken since April 2021, an update on the optimization projects for OU1 and OU2, results of the Site A investigation, and updated on the Round Lake ROD. USGS provided a presentation on the treatability study at Site K.
    • RAB Presentation – Dec. 14, 2021
    • USGS Presentation on Site K – Dec. 14, 2021
    • Meeting Minutes – Dec. 14, 2021
    • Stakeholder Meeting Presentation – Dec. 15, 2021

Previous RAB Meetings:


NOTE: Additional documents related to the Round Lake remediation are available on the Resources Page.


The TCAAP RAB was established in 1996. It remained active until 2015. The RAB was never dissolved or adjourned. The Army solicited for interest in participating on the TCAAP RAB in April 2020 but did not receive sufficient interest. However, in October 2020 the Army began receiving emails from interested community members and had sufficient interest to continue the RAB. The Army contacted other local stakeholders to solicit their interest in participating and held the first TCAAP RAB meeting in more than five years in January 2021.
The Mission Statement and  Operating Procedures from the former TCAAP RAB are available for review, as well as a list of former members. If you are interested in participating on the RAB, please see below How to Get Involved in the RAB.


What is a Restoration Advisory Board or RAB?

A RAB is a stakeholder group that meets on a regular basis to discuss environmental restoration at a specific property that is either currently or was formerly owned by the Department of Defense (DoD), but where DoD oversees the environmental restoration process. RABs enable people interested in the environmental cleanup at a specific installation to exchange information with representatives of regulatory agencies, the Army, and the community. While the general public can comment on DoD’s environmental restoration program, RABs offer a focused and interactive opportunity to participate in the environmental restoration process.

The RAB provides the community with the opportunity to become involved in the environmental restoration process at the former Twin Cities Army Ammunition Plant either as a RAB member or through attendance at RAB meetings. RABs offer members the opportunity to influence cleanup decisions through discussion and to provide input to the Army’s decision makers. Because representatives of the environmental agencies overseeing cleanup participate in the RAB, the RAB offers members and the public the opportunity to share their questions, concerns, and ideas with agencies involved in the cleanup.

What does the RAB do?

The RAB reviews documents prepared by the Army about the environmental restoration process taking place at the former TCAAP and provides an opportunity for local citizen input into the cleanup process. The status of each of the sites undergoing cleanup is available on this website. Community input is critical to ensure understanding and acceptance of the decisions made by the U.S. Army, the MPCA, and the U.S. EPA. Please review the mission statement and operating procedures or minutes of previous meetings (below) for more information.

How do I get involved in the RAB?

RAB members have been selected and are representative of the affected community near the former Twin Cities Army Ammunition Plant. RAB meetings are open to the public. Meetings are being held virtually during the COVID pandemic to help keep everyone healthy and safe. Meetings are announced on this RAB page, on the front page of the website, and in local newspapers. When there are vacancies on the RAB, the Army will solicit for new members on the website, in local newspapers, and through current RAB members.

If you would like to be on the Mailing List and receive information by email or if you have any questions, please contact:
Cathy Kropp, Environmental PA Specialist

Mail: U.S. Army Environmental Command
2455 Reynolds Road, Mailstop 112
ATTN: Cathy Kropp
JBSA Fort Sam Houston, TX 78234-7558