BRIEF DESCRIPTION:
� PRP for this portion of River is Tecumseh Products, Inc. (Sheboygan Falls, Wisconsin).
� Site extends ~14 miles through Sheboygan Falls, Kohler, and Sheboygan, Wisconsin.
� Technically complicated river PCB site.
� Host of complicating factors: issuance of new model CD during moratorium, National Academy of Sciences/National Research Counsel report on river PCB sites, and difficulties resolving issues with State.
� Includes Sheboygan Harbor, and lower Sheboygan River, which discharges into Sheboygan Harbor.
� Sheboygan River drains into Lake Michigan; source of drinking water for ~58,000 people within Sheboygan/Sheboygan Falls/Kohler metropolitan area.
� Sediments are contaminated with PCBs and a wide variety of heavy metals.
� Soils & surface H2O contaminated with PCBs and heavy metals (As, Chr, Cu, Pb, & Zn).
� Fish and wildlife contaminated with PCBs.
BACKGROUND:
� 1977: State of Wisconsin detected PCBs during routine sampling of fish.
� Since then, PCBs have been detected in fish, wildlife, surface water, sediments in harbor and river, and in flood plain soils.
� Highest concentrations of PCBs detected in sediments immediately downstream from die-casting plant in Sheboygan Falls. Concentrations decline farther downstream from plant.
� 1978: PRP excavated PCB-contaminated soils from its property and disposed off-site.
� 1978: State advised residents not to eat fish from the Sheboygan River and