Latitude 41°34'58", Longitude 87°33'00" NAD27
Cook County, Illinois , Hydrologic Unit 07120003
Well depth: 91 feet Hole depth: 91 feet
Land surface altitude: 603.23
feet above NGVD29.
Well completed in "Silurian-Devonian aquifers" (N400SLRDVN) national aquifer.
Well completed in "Niagaran Series" (355NIGR) local aquifer