Latitude 41°45'38", Longitude 87°54'55" NAD27
Cook County, Illinois , Hydrologic Unit 07120004
Well depth: 365 feet Hole depth: 365 feet
Land surface altitude: 700
feet above NGVD29.
Well completed in "Silurian-Devonian aquifers" (N400SLRDVN) national aquifer.
Well completed in "Silurian System" (350SLRN) local aquifer