Twin Cities Army Ammunition Plant

Restoration Advisory Board (RAB)

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Meeting Summaries

Next RAB Meeting:

The Army is hosting a RAB meeting on Sep. 17, 2024, at 7:00 p.m. CST to update the community on the latest status of cleanup at TCAAP.

The RAB meeting will be held virtually on MS Teams and in person at the Arden Hills City Hall Community Room, 1245 West Highway 96, Arden Hills, MN 55112. 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 when available. The Feb. 20, 2024 presentation can be found below and minutes will be provided when finalized.

Last RAB Meeting:

The TCAAP RAB Meeting was held virtually on Feb. 20, 2024. This RAB meeting provided updates on TCAAP OU1, OU2, and OU3 cleanup/monitoring and groundwater sampling. The Army also presented updates on SGRS and TGRS. USGS provided an update on the groundwater model and Site K study, and the continuing remedial design at Round Lake was discussed.

Previous RAB Meetings:



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