EPA Superfund site
MAGNA METALS
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 May 2026, the Magna Metals Superfund site is considered “Insufficient Data to make a Human Exposure evaluation” (HEID). This status does not necessarily mean that unacceptable exposures are occurring. Sampling indicates that soil, groundwater, a nearby stream, and sediments contain metals and volatile organic compounds (VOCs). Some homes near the brook have contaminated soil and are close to contaminated sediment. Affected residents have received their soil results and short‑term exposure‑reduction guidance. Current information is not sufficient to determine whether actual or reasonably anticipated human exposures are occurring above acceptable risk‑based levels across all pathways and areas (e.g., direct contact with contaminated soil and sediment, contact with surface water, and use of groundwater).
EPA uses this Human Exposure status when data are insufficient to determine if exposures are occurring above acceptable levels. Planned activities to collect sufficient information include completing the comprehensive Remedial Investigation/Feasibility Study (RI/FS) initiated in 2024 by the potentially responsible parties (PRPs). Components of the RI/FS include installing and sampling additional groundwater monitoring wells to delineate plume extent and migration; collecting additional soil, sediment, groundwater, porewater, and surface water samples in residential areas near the brook and downstream; and preparing a Human Health Risk Assessment (HHRA) to evaluate exposure pathways for nearby residents, recreational users, and current/future workers. If warranted by site conditions, EPA will also screen for vapor intrusion (VI) in nearby buildings.
EPA currently anticipates there will be sufficient data to make a Human Exposure determination by September 2028 because the RI/FS and HHRA are expected to be completed and EPA will have the information needed to select a remedy by that time.
If you live or work near the site, you can reduce your exposure by avoiding contact with bare soils and sediments near the brook, keeping children and pets away from disturbed soils, and washing hands after outdoor activities. For more information, contact the EPA Community Involvement Coordinator Joel Waddell via the site webpage or (212) 637-3590 or [email protected]. EPA will continue to meet with residents and stakeholders, issue public notices and updated fact sheets, and keep the site profile on EPA’s website up to date.