EPA Superfund site
FIVE POINTS PCE PLUME
Exposure status: insufficient data
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.
About this site's exposure pathways
As of August 2026, the Five Points PCE Plume Superfund site is considered “Insufficient Data to make a Human Exposure evaluation” (HEID) because of a newly identified exposure pathway and/or contaminant(s). Further characterization of the site found related soil and soil gas tetrachloroethylene (PCE) contamination, in addition to the already known groundwater plume. The site was previously categorized as Human Exposure Under Control because the groundwater plume did not impact residents’ drinking water. The new pathway does impact the selected remedy since new mediums will need to be addressed.
The EPA uses the HEID status when there is a lack of evidence to suggest that actual or reasonably anticipated human exposures are occurring and that those exposures are above acceptable risk-based levels. The planned activities to collect sufficient information to evaluate this new exposure pathway and/or contaminants(s) are to conduct further characterization of the soil and soil gas contamination through sampling and to evaluate for potential vapor intrusion occurring in buildings due to PCE soil gas. The EPA and the Utah Department of Environmental Quality (UDEQ) currently anticipate that there will be sufficient data to make a Human Exposure evaluation by 2031 because of the completion of the additional investigation and focused feasibility study.
The EPA and UDEQ are in continued communication with the dry cleaner owner and the property owner about current work underway at this site. The EPA performed an indoor air sampling event after confirmed soil gas samples were taken to evaluate potential vapor intrusion occurring in nearby properties. Although there was no immediate human risk, the EPA and UDEQ are conducting a widespread soil gas investigation to evaluate vapor intrusion human exposure pathway.