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A holistic approach to cleanup and restoration has put the Sheboygan River on the road to recovery. Thanks to federal funds and the hard work of many partners, PCBs and other contaminants have been removed and more than 34 acres of wetland and stream habitat have been restored, increasing the recreational and economic value of this important area.

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Contact information
For more information, please contact:
Camille Bruhn
Sheboygan River AOC coordinator
Wisconsin Dept. of Natural Resources
Plymouth WI

Sheboygan River


In 1987, the Sheboygan River was designated one of 43 Great Lakes Areas of Concern – areas that are severely degraded and fail to support aquatic life beneficial for human use (like fish and wildlife that are healthy to eat). The lower 14 miles of the Sheboygan River and the Sheboygan Harbor are included in the Sheboygan River Area of Concern for a number of reasons, but primarily due to:

  • contamination that persists in the environment from industrial waste – polychlorinated biphenyls, known as PCBs; and
  • polycyclic aromatic hydrocarbons, also called PAHs.

These contaminants are often associated with deposits of river sediment.

Because these contaminants exist within a dynamic river system, they can be moved and re–deposited by floods and other disturbances. The effects of these contaminants to species vary but include impacts to every level of the food chain from organisms that live in the river bottom, to aquatic insects, to microscopic plankton that fish rely upon for food. Impacts may also include impacts to fish and wildlife reproduction, decreased fish and wildlife populations, and fish tumors and other deformities. Because PCB’s are known to bioaccumulate as they move up the food chain, they present a carcinogenic risk to human health if they are present in fish or wildlife that is eaten. For that reason, the Wisconsin DNR in conjunction with the Wisconsin Division of Health have issued fish and wildlife consumption advisories which ask that people not eat resident fish and certain waterfowl from the lower 14 miles of the river. Other impairments identified for the Sheboygan River Area of Concern include eutrophication and undesirable algae and loss of fish and wildlife habitat.

The worst areas of contamination in the Sheboygan River are designated as Superfund sites. The Superfund program is a complex, long–term clean–up program for uncontrolled hazardous waste. It is headed by the U.S. Environmental Protection Agency (EPA) and includes:

  • removal of hazardous substances;
  • enforcement against potentially responsible parties;
  • community involvement;
  • state agency involvement; and
  • long–term protection.

The focus of the Superfund program is reducing risk to human health.

There are voluntary actions that can be sought through the federal Great Lakes Restoration Initiative and the EPA Legacy Act Program to further restore Great Lakes Areas of Concern and remove additional contamination. A variety of local groups and municipal officials have been active in the Sheboygan River Area of Concerns for years. In 2009, as Superfund actions for the lower river and inner harbor became better known, a local dredging workgroup was formed that included city, county, state and federal elected officials and staff along with representatives from local conservation groups, and potentially responsible parties. The workgroup pursued a betterment project under the EPA Legacy Act to remove additional contamination that would not be addressed by Superfund to speed up recovery of the river ecosystem. As a side benefit, the betterment action would also address impacts to future uses of the river caused by restrictions on dredging.

In order to address the fish and wildlife habitat, population and related issues, a technical advisory committee was formed to identify data needs, pursue funding for assessment work, and to identify habitat improvement projects.

Community engagement

Community Advisory Committee (CAC)

In the Sheboygan River AOC there are two advisory groups established to provide input on AOC issues and planning: the Fish and Wildlife Technical Advisory Committee (TAC) and the Community Advisory Committee (CAC).

  • Technical Advisory Committee – The Sheboygan River AOC Fish and Wildlife Technical Advisory Committee (F&W TAC) is made up of representatives from DNR, the Sheboygan River Basin Partnership, National Oceanic and Atmospheric Administration (NOAA), U.S. Fish and Wildlife Service (FWS), U.S. Bureau of Land Management (BLM), City of Sheboygan, Sheboygan County and University of Wisconsin – Extension (UWEX). The F&W TAC provides technical input on our two fish and wildlife related Beneficial Use Impairments in the Sheboygan AOC (degradation of fish and wildlife populations and loss of fish and wildlife habitat). The group worked together to prepare a fish and wildlife assessment project that was funded in 2010 through the Great Lakes Restoration Initiative and is now in progress. The group was also instrumental in developing and prioritizing fish and wildlife habitat conservation and restoration projects. As we work on these projects throughout the next year the F&W TAC will also provide input on plans requested by EPA, such as the Stage II RAP and Fish and Wildlife Habitat Restoration and Management Plan.
  • Community Advisory Committee – The new Sheboygan River AOC Community Advisory Committee (CAC) met for their inaugural meeting on August 4, 2011. In the past, CAC groups have convened during times of activity in the Sheboygan River AOC, but have not been sustained in periods of inactivity. This newly formed CAC is intended to be a larger and more diverse representation of the community including stakeholder groups, citizens, adjacent landowners, businesses and local government representatives. The purpose of the group is to provide feedback on projects, proposals, plans and educational materials. CAC members also have opportunities to learn about the Sheboygan River AOC and work being done to restore the beneficial uses of the river. CAC members also serve as ambassadors to the community at large on Sheboygan River issues.

Get involved

To learn more about AOC community events, volunteer opportunities and more check out our latest event listing. Don't forget to check back often for updates.

AOC newsletters


Beneficial Use Impairments

Fish Consumption Advisory
River Habitat

Areas were listed as Areas of Concern because beneficial uses of the river were believed to be impaired. These "beneficial use impairments" or BUIs are the issues that need to be addressed before the area can be delisted, or removed from the Area of Concern.

Of the 14 possible beneficial uses, nine are impaired for Sheboygan River.

  • Restrictions on fish and wildlife consumption
  • Eutrophication or undesirable algae
  • Degradation of fish and wildlife populations
  • Fish tumors or other deformities
  • Bird or animal deformities or reproduction problems
  • Degradation of benthos
  • Degradation of phytoplankton and zooplankton populations
  • Restrictions on dredging activities
  • Loss of fish and wildlife habitat

Final BUI removal package with cover letters.


Recently, there have been a lot of efforts to clean up the river and remove the nine Beneficial Use Impairments identified for the river. There is also much more work planned for the near future. Some of the projects include:

  • Sheboygan River & Harbor Superfund [exit DNR] (EPA site) – Sediments contaminated by PCBs or polychlorinated biphenyls are being removed from the lower portions of the river and floodplains in the upper river in 2011 and 2012. Areas in the upper river that were contaminated were cleaned up in 2006. The responsible party, Techumseh, funds this dredging work and is being carried out by Pollution Risk Services.
  • Campmarina Superfund alternative [exit DNR] (EPA site) – Sediments contaminated by coal tar by–products, known as PAHs or polycyclic aromatic hydrocarbons, are being cleaned up in the river in 2011. This site is located in the City of Sheboygan near Boat Island. Clean up work on the land portion of this site was completed in 2002. This work is funded and carried out by the responsible party, Wisconsin Public Service. The contamination happened while the Sheboygan Gas and Light Company operated on the site in the late 1800s and early 1900s.
  • Sheboygan River Legacy Act dredging project – As a betterment to the two Superfund dredging projects, a Legacy Act Dredging Project is being planned in 2011 for implementation in 2012. This project will clean up contaminated sediment that is left after the two Superfund projects have completed contaminated sediments they are responsible for under the Superfund program. The majority of this work will occur in the lower river between Kiwanis Park and the 8th Street Bridge. This work is funded by the Great Lakes Legacy Act with cost share from the Department of Natural Resources, Sheboygan County, the City of Sheboygan, WPS and the Superfund dredging projects.
  • Sheboygan Harbor Navigational Dredging – Sediments in the lower portion of the river between the 8th Street Bridge and the outer harbor will be dredged in 2012. This project will improve the navigation of this area of the river, which has very low levels of contamination. This work is funded through the Army Corps of Engineers and the Great Lakes Restoration Initiative.
  • Sheboygan River AOC Habitat Conservation and Restoration projects – Several habitat conservation and restoration projects were identified by the Fish and Wildlife Technical Advisory Committee as necessary to remove the fish and wildlife habitat related BUIs. These projects are being carried out in 2010, 2011 and 2012. These projects include Kiwanis Park Shoreline Restoration, Taylor Drive & Indiana Avenue Riparian Area and Wetland Restoration, Wildwood Island Area Restoration, Shoreline Stabilization in Problem Areas, In–Stream Habitat Improvements, Targeted Invasive Species Control and Schuchardt Property Conservation Planning. These projects are funded through a Great Lakes Restoration Initiative grant to the Department of Natural Resources.
  • Sheboygan River AOC Evaluation and Monitoring projects – Over the next several years there will be evaluation and monitoring projects that will measure whether BUIs can be removed in the Sheboygan River AOC. These include waterfowl contaminant monitoring, fish tumor incidence rate monitoring and evaluations of the plankton and benthic communities in the river. Recently an assessment of various other fish and wildlife species was completed throughout the AOC and in some tributary streams. These projects are funded through Great Lakes Restoration Initiative grants to the Department of Natural Resources.
  • Sheboygan River education & outreach [exit DNR]
Last revised: Thursday April 14 2016