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EPA Superfund Site

US OIL RECOVERY

TX | EPA ID TXN000607093

Human exposure is NOT currently under control

About this site’s exposure pathways: As of September 2022, based on data collected for the Remedial Investigation for OU1, exposure pathways exist and therefore the site is considered "Human Exposure Not Under Control (HENC)". Concentrations of some contaminants in the uppermost groundwater bearing unit exceed drinking water standards; however shallow groundwater is not used and will not be used as a drinking water source in the future (prevented by institutional controls for on-property and off-property). Exposure to off-property groundwater potentially poses a risk to construction workers that may contact shallow groundwater. Arsenic, aldrin, pesticides exceed risk levels in on-property and off-property soil. The sediments adjacent to the USOR property show elevated levels of metals such as antimony, arsenic, and mercury, pesticides and herbicides such as aldrin, dieldrin, and heptachlor epoxide. The contaminated sediment area is about 1/3 of an acre compared to the approximately 38 acres of the bayou and existing on-site contamination acts as a source contamination to the bayou and sediments. Fishing is observed in the Bayou adjacent to the Site and fish ingestion exposure pathways exist. The RI/FS for OU1 is expected to be completed FY 2023. The RI/FS for OU-2 is underway and is expected to be completed in FY 2025.

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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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