Small map of BAAP installationWhen operating, Badger Army Ammunition Plant (AAP) was located on 7,275.24 acres of land in Sauk County, Wisconsin. The installation was bordered to the north by Devil's Lake State Park; to the east by farmland, State Highway 78 and the Wisconsin River; to the south by farmland; and to the west by U.S. Highway 12. The city of Baraboo is located north of the former Badger AAP, and Sauk City and Prairie du Sac are located to the south. Bluffview, a residential area, is located across Highway 12 directly west of Badger AAP's main gate. There are several unincorporated residential developments east of the former Badger AAP between Highway 78 and the Wisconsin River. The Army has transferred more than 6,740 acres primarily to the U.S. Department of Agriculture; the U.S. Department of Interior (Ho-Chunk Nation) and the State of Wisconsin Department of Natural Resources (Sauk Prairie Recreation Area).

Next Meeting Date:

October 20, 2022 at 6 p.m

There will be an administrative meeting at 5 p.m. to continue updating the operating procedures, vote on RAB membership and consider other administrative items.

The former Badger AAP cleanup update meting will begin at 6 p.m. Both meetings are open to the public.

The meetings will be held both in person at the Sauk Prairie Schools District Office Board Room, 440 13th Street in Prairie du Sac and virtually using meeting software to maintain social distancing and protect the health of the community.  You do not have to download the software to participate online (you can access through your browser). You may also call in with a telephone. If you are a RAB member you will receive an invite with the call in and meeting information. 

The meeting is open to the public. If you are not a RAB member but would like to participate, please contact Kay Toye at 302-313-1770 or and she will provide information on how to join the virtual meeting.


For more information, contact Cathy Kropp, 443-243-0313 or email

What is Expected Next?

Results from August and September groundwater monitoring.

Based on USGS Trends Analysis Report the Army has developed a plan to optimize the groundwater monitoring network. Once Army review/approvals are obtained, it will be forwarded to the Wisconsin Department of Natural Resources and the community for review and feedback. The Army will also be developing a single site-wide groundwater monitoring plan.

Contract to be awarded to refine the conceptual site model for Gruber's Grove Bay, address data gaps, evaluate remedial action alternatives, and evaluate the risk to human health and the environment.

Proposed Plan for groundwater at Badger AAP will be released to WDNR and the community and a public comment period and meeting will be hosted by the Army.

The Army will expand the site inspection to include final creek and settling ponds 1, 2, and 3.


Latest Updates:

Information and presentations from previous meetings are available here

August 2022 RAB meeting recording

Badger AAP Groundwater Quality Data Storymap

Army presentation from August RAB meeting

USGS presentation from August RAB meeting

June 2022 Groundwater Monitoring Results

April 2022 Groundwater Monitoring Results

Admin Record Repository Listing

Other reports are available here.