Public Notice: EPA Begins Second Review of Eagle Zinc Superfund Site

Summary

The U.S. EPA is conducting the second five-year review of Operable Unit 1 and 2 of the Eagle Zinc Superfund site in Hillsboro, Illinois. The Superfund law requires regular checkups of sites that have been cleaned up – with waste managed on-site – to make sure the cleanup continues to protect people and the environment. A summary of the cleanup activities and an evaluation of the protectiveness of the implemented cleanup remedies will be included in the five-year review report.

OU1 addressed the contaminants associated with several dozen abandoned and dilapidated buildings at the Site. The EPA’s selected remedy for OU1 included the demolition of on-property buildings and off-site disposal, recycling, or on-site containment of the building debris as appropriate.

OU2 addressed the contaminants in manufacturing residues, soil, surface water, sediment at the site, building debris from OU1, and excavation and off-site disposal of contaminated residential soil. The EPA’s selected remedy for OU2 also included the treatment of leachable residues using immobilization, excavation and on-site consolidation into a newly constructed cell of contaminated residues, soil, and sediment, and installing a soil cover over the containment cell. 

The five-year review at the Eagle Zinc Superfund site gives the public an opportunity to comment about site conditions or concerns. This is the second five-year review of the Eagle Zinc Superfund site. Its completion is expected by July 2025.