Latitude 41°37'53", Longitude 87°51'17" NAD27
Cook County, Illinois , Hydrologic Unit 07120004
Well depth: 0397 feet Hole depth: 397 feet
Land surface altitude: 710.00
feet above NGVD29.
Well completed in "Silurian-Devonian aquifers" (N400SLRDVN) national aquifer.
Well completed in "Silurian Dolomite" (350SIDO) local aquifer