Latitude 42°00'12", Longitude 88°07'10" NAD27
Cook County, Illinois , Hydrologic Unit 07120004
Well depth: 0250 feet Hole depth: 250 feet
Land surface altitude: 826
feet above NGVD29.
Well completed in "Silurian-Devonian aquifers" (N400SLRDVN) national aquifer.
Well completed in "Silurian System" (350SLRN) local aquifer