Latitude 41°28'58", Longitude 87°44'12" NAD27
Cook County, Illinois , Hydrologic Unit 07120003
Well depth: 418 feet Hole depth: 418 feet
Land surface altitude: 732.5
feet above NGVD29.
Well completed in "Silurian-Devonian aquifers" (N400SLRDVN) national aquifer.
Well completed in "Silurian System" (350SLRN) local aquifer