Site Plain EPA Superfund sites near you, in plain language

EPA Superfund Site

COLONIAL CREOSOTE

LA | EPA ID LAN000607134

Exposure status: insufficient data

About this site’s exposure pathways: As of August 2025, the Colonial Creosote Superfund Site is considered 'Insufficient Data to make a Human Exposure evaluation' (HEID). A phased Remedial Investigation/Feasibility Study (RI/FS) was initiated in June 2017 and is ongoing. The site is enclosed with a fence and locked gate, minimizing potential exposure to possible subsurface soil contaminants. Efforts are ongoing in implementing the phased RI/FS, with the Human Health Risk Assessment being conducted as part of this process. The RI/FS is expected to be completed by the end of 2026, and EPA anticipates that sufficient data will be available to make a Human Exposure determination shortly after that time.

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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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