Latitude 41°57'20", Longitude 87°58'46" NAD27
Dupage County, Illinois , Hydrologic Unit 07120004
Well depth: 135 feet Land surface altitude: 702.5
feet above NGVD29.
Well completed in "Silurian-Devonian aquifers" (N400SLRDVN) national aquifer.
Well completed in "Silurian System" (350SLRN) local aquifer