Latitude 41°42'38", Longitude 87°54'39" NAD83
Cook County, Illinois , Hydrologic Unit 07120004
Well depth: 170 feet Hole depth: 170 feet
Land surface altitude: 655
feet above NGVD29.
Well completed in "Silurian-Devonian aquifers" (N400SLRDVN) national aquifer.
Well completed in "Silurian System" (350SLRN) local aquifer