Latitude 42°02'38", Longitude 88°02'29" NAD27
Cook County, Illinois , Hydrologic Unit 07120004
Well depth: 0265 feet Hole depth: 265 feet
Land surface altitude: 740
feet above NGVD29.
Well completed in "Silurian-Devonian aquifers" (N400SLRDVN) national aquifer.
Well completed in "Silurian System" (350SLRN) local aquifer