Latitude 41°40'18", Longitude 87°36'45" NAD27
Cook County, Illinois , Hydrologic Unit 07120003
Well depth: 69.7 feet Hole depth: 70 feet
Land surface altitude: 595.14
feet above NGVD29.
Well completed in "Silurian-Devonian aquifers" (N400SLRDVN) national aquifer.
Well completed in "Racine Formation" (355RCIN) local aquifer