The U.S. Environmental Protection Agency has removed the landfill portion of the Lake Sandy Jo Superfund site in Gary from the National Priorities List, a list of the nation’s most contaminated sites.
The EPA and the Indiana Department of Environmental Management said the soil cleanup at the landfill portion of the site has met all the cleanup requirements set in 1986, but the groundwater portion of the site and several properties near the landfill will remain on the National Priorities List until cleanups are completed there.
The site was excavated for construction materials between 1971 and 1980, then used as a landfill.
Soil, sediment and groundwater at the 50-acre site were found to be contaminated with toxic polycyclic aromatic compounds (PAHs), volatile organic compounds, heavy metals and other chemical substances.
The site was then closed by the state and added to the National Priorities List in 1983.
A five-year review of the site’s cleanup will be released in July.