Latitude 42°01'06", Longitude 88°06'33" NAD27
Cook County, Illinois , Hydrologic Unit 07120004
Well depth: 0256 feet Hole depth: 256 feet
Land surface altitude: 800
feet above NGVD29.
Well completed in "Silurian-Devonian aquifers" (N400SLRDVN) national aquifer.
Well completed in "Silurian System" (350SLRN) local aquifer