EPA Superfund site
BEHR DAYTON THERMAL SYSTEM VOC 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 September 2026, there is “Insufficient Data to make a Human Exposure evaluation” (HEID) at the Behr Dayton Site. The Site was identified as having vapor intrusion (VI) in the early 2000s due to trichloroethylene in groundwater. Investigations and mitigations have been ongoing since. EPA issued an interim Record of Decision in 2019 to treat the groundwater plume and conduct VI monitoring, mitigation, and maintenance. Approximately 250 structures have been equipped with mitigation systems to prevent inhalation of site contaminants in indoor air above screening levels but additional properties need to be sampled and operations and maintenance (O&M) of the existing systems need to be continued. Residents should contact EPA if concerned about the status of their property. EPA expects to make the Human Exposure determination by November 2032 after additional characterization, monitoring, and mitigation of VI in the area of concern, as needed, as well as O&M of existing systems.