EPA Superfund site
GARY DEVELOPMENT LANDFILL
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, there is insufficient data to make a human exposure evaluation (HEID) at the Gary Development Landfill Superfund Site. EPA is performing an ongoing remedial investigation for groundwater, as chemicals have been detected at concentrations posing potentially unacceptable risks to human health in samples from groundwater monitoring wells along the perimeter of the landfill waste boundary, and no wells have been sampled beyond the property boundary. Potential exposure from vapor intrusion has not been evaluated outside the source area. Despite this, there are no residents nearby the site, and community interest remains low. As part of OU-2 interim remedy, direct contact exposure from the landfill contaminants will be eliminated while OU-3 work continues. A supplemental groundwater RI, human health risk assessment, and an OU-3 record of decision will be developed when sufficient information is collected. EPA anticipates having sufficient information to make a human exposure determination by May 2038 as part of the selected final remedy for the site.