Latitude 41°30'24", Longitude 87°32'51" NAD27
Cook County, Illinois , Hydrologic Unit 07120003
Well depth: 350 feet Hole depth: 350 feet
Land surface altitude: 630
feet above NGVD29.
Well completed in "Silurian-Devonian aquifers" (N400SLRDVN) national aquifer.
Well completed in "Silurian System" (350SLRN) local aquifer