Latitude 41°29'19", Longitude 87°38'08" NAD27
Cook County, Illinois , Hydrologic Unit 07120003
Well depth: not determined. Land surface altitude: 710
feet above NGVD29.
Well completed in "Silurian-Devonian aquifers" (N400SLRDVN) national aquifer.
Well completed in "Silurian Dolomite" (350SIDO) local aquifer