Water and Related Wells in Illinois

The ISGS is an official repository for records of wells drilled in the state of Illinois. Paper records are archived for over 700,000 wells. Some of these records go back as far as the late 1800s. Water and related well data can be accessed for private water wells, engineering borings, and stratigraphic borings.

Digital Water Well Records

Well Records via Interactive Map
      Interactive Map
            How to use the map.
            Full map legend.
NOTE: This application will not work with Java 7; you must use Java 6.
      Well Records via Database Query

Related Information

Disable all POPUP BLOCKER software to access well records.

Data Disclaimer
Data Policies and Procedures
How Well Locations Are Described
Formation Description Abbreviations(PDF)
Water Well Data Elements (PDF)

For general inquiries, e-mail the ISGS Database Administrator.

To purchase data, call the ISGS Geologic Records Unit at 217-333-5109.

Updated 06/19/2012 ABL