Download complete raw data set as an Excel file        Download soil samples only        Download water & groundwater samples only

Instructions: Click on a for data corresponding to a single sample location. Or, click on a cluster to reveal samples that are grouped close together. Clicking “View contaminant details” will reveal a full page showing the contamination found at each location.

The sample data contained on this map was originally created by contractors employed by the responsible parties (ExxonMobil and CBS/Viacom). The data was obtained from the IL EPA via the Freedom of Information Act and was then digitized by a team of Northwestern University interns. Read more.