Latitude 42°01'20", Longitude 88°05'28" NAD27
Cook County, Illinois , Hydrologic Unit 07120004
Well depth: 0260 feet Hole depth: 260 feet
Land surface altitude: 820
feet above NGVD29.
Well completed in "Silurian-Devonian aquifers" (N400SLRDVN) national aquifer.
Well completed in "Silurian System" (350SLRN) local aquifer