Jump to main content.

Wheeler Pit

Site Information
Contact Information

Community Involvement Coordinator
Susan Pastor (pastor.susan@epa.gov)
312-353-1325 or 800-621-8431, ext. 31325

Remedial Project Manager
Karen Mason-Smith
312-886-6150 or 800-621-8431, ext. 66150


(where to view written records)

Hedberg Public Library
316 S. Main St.
Janesville, WI


The Wheeler Pit site, located at County Trunk Highways O and J in LaPrairie Township, Rock County, Wisconsin, is a 3.75-acre former disposal area. It lies within a 35-acre abandoned, unlined gravel pit. Wheeler Pit originally was mined for sand and gravel by the Chicago, Milwaukee, St. Paul, and Pacific Railroad Co. In 1956, General Motors Corp. leased a four-acre portion of the pit for waste disposal. GMC also used it to dispose of paint and waste water sludges from its Janesville auto assembly plant as well as coal ashes from power plant boilers. The sludge and ash were contained by a dike at the pit.

In 1971, a liquid was found seeping on the ground from the GMC disposal area. Disposal at Wheeler Pit stopped in 1974, and it was covered at the request of La Prairie Township. From 1974 to 1988, the site was monitored intermittently for ground water contamination from arsenic, chromium, zinc, and barium.

The cleanup, which was completed in 1992, consisted of a multilayer cap, a fence around the site, waste consolidation, long-term ground water monitoring, institutional controls, and natural processes. Wheeler Pit was deleted from the Superfund list in 2004.

Site Updates | Latest Update | Fact Sheets || Technical Documents || Five-Year Reviews || Legal Agreements

You will need the free Adobe Reader to view some of the files on this page. See EPA's PDF page to learn more.

Site Updates

January 2015

EPA completed a review of the site's cleanup in 2012. This type of review is required at least every five years where the cleanup is complete but hazardous waste remains managed on-site. These reviews are done to ensure that the cleanup continues to protect people and the environment.

The review included:

The review found that the cleanup continues to protect people and the environment. The next scheduled review will be in 2017.

Although the site use is consistent with current deed and land-use restrictions, referred to as institutional controls, EPA is working with the landfill’s owners and the Wisconsin Department of Natural Resources to review and update them, if necessary.

Top of page

Fact Sheets

Top of page

Technical Documents

Top of page

Five-Year Reviews

Top of page

Legal Agreements

Top of page

Local Navigation

Jump to main content.