Latitude 41°49'38", Longitude 88°03'55" NAD27
Dupage County, Illinois , Hydrologic Unit 07120004
Well depth: 250 feet Hole depth: 250 feet
Land surface altitude: 700
feet above NGVD29.
Well completed in "Silurian-Devonian aquifers" (N400SLRDVN) national aquifer.
Well completed in "Silurian System" (350SLRN) local aquifer