Latitude 42°04'10", Longitude 87°57'11" NAD27
Cook County, Illinois , Hydrologic Unit 07120004
Well depth: 1950 feet Hole depth: 1950 feet
Land surface altitude: 693.00
feet above NGVD29.
Well completed in "Silurian-Devonian aquifers" (N400SLRDVN) national aquifer.
Well completed in "Devonian-Silurian System" (340DVSL) local aquifer