Site Plain EPA Superfund sites near you, in plain language

EPA Superfund Site

ST. LOUIS RIVER SITE

MN | EPA ID MND039045430

Human exposure is NOT currently under control

About this site’s exposure pathways: As of July 2024, the St. Louis River Superfund site is considered “Current Human Exposure Not Under Control” because trespassing recreational users of both the St. Louis River/US Steel and St. Louis River/Interlake/Duluth Tar (SLRIDT) portions of the Site can be exposed through direct contact to contaminated soil and sediments (US Steel) and tar seeps. Sediment operable units at the site are currently the subject of a cleanup under the Great Lakes Legacy Act; the rest of the site is currently designated as State Enforcement Lead. Contaminated portions of both areas are fenced to prevent access; however, there is evidence of site trespassing. The potentially responsible parties (PRPs) have completed several phases of cleanup under State oversight in both areas. Tar seep cleanup at SLRIDT and sediment cleanup at US Steel are expected to be completed by PRP actions in the coming several years, but the remaining soil cleanup at US Steel is expected to continue until December 2030.

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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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