Latitude 41°39'36", Longitude 87°59'55" NAD27
Cook County, Illinois , Hydrologic Unit 05140206
Well depth: 1658 feet Land surface altitude: 735
feet above NGVD29.
Well completed in "Cambrian-Ordovician aquifer system" (S300CAMORD) national aquifer.
Well completed in "Ordovician-Cambrian Systems" (367OVCB) local aquifer