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EPA Superfund Site

OCONOMOWOC ELECTROPLATING CO., INC.

WI | EPA ID WID006100275

Exposure status: insufficient data

About this site’s exposure pathways: As of August 2025, there is not sufficient information available to determine the site-wide Human Exposure Control status at Oconomowoc Electroplating Co., Inc. Superfund Site because of a newly identified emerging contaminant of concern in groundwater. The human exposure determination will be made after an additional round of samples are collected from residential wells and analyzed for Perfluoroalkyl and Polyfluoroalkyl Substances (PFAS) to determine if a human pathway exposure exists. A determination on the Human Exposure Control status is expected to be made by the end of June 2026.

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Data limitations: Proximity to a Superfund site boundary does not mean your property is contaminated. EPA site boundaries show the area designated for cleanup, not the full extent of contamination. Groundwater plumes can extend beyond site boundaries. This tool shows publicly available EPA federal data. It is not affiliated with or endorsed by EPA, and is not a substitute for a professional environmental assessment.

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