Latitude 41°40'24", Longitude 87°36'48" NAD27
Cook County, Illinois , Hydrologic Unit 07120003
Well depth: not determined. Land surface altitude: 586.13
feet above NGVD29.
Well completed in "Silurian-Devonian aquifers" (N400SLRDVN) national aquifer.
Well completed in "Racine Formation" (355RCIN) local aquifer