EPA Superfund site
HERCULES INC
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 2024, the Hercules Inc. Superfund site is considered “Insufficient Data to make a Human Exposure evaluation” (HEID). Hercules Inc. was finalized on the NPL on 20 December 2022 and there has not yet been an evaluation of the human health exposure risks.
EPA uses this Human Exposure status when there is insufficient data/evidence to determine whether actual or reasonably anticipated human exposures are occurring, and/or whether those exposures are above acceptable risk-based levels. The planned activities to collect sufficient information to make a human exposure evaluation began with Vapor Intrusion sampling in the adjacent residential area and the December 2023 start of the Remedial Investigation to collect data on the soil, sediments and groundwater so that a determination can be made on all actual and potential human interactions with contaminated media through a Human Health Risk Assessment (HHRA). EPA currently anticipates that there will be sufficient data to make a Human Exposure determination by September 2028 because the Remedial Investigation/Feasibility Study (RI/FS) and the HHRA should be completed by that date.