Latitude 41°44'29", Longitude 87°56'11" NAD27
Dupage County, Illinois , Hydrologic Unit 07120004
Well depth: 320 feet Hole depth: 320 feet
Land surface altitude: 720
feet above NGVD29.
Well completed in "Silurian-Devonian aquifers" (N400SLRDVN) national aquifer.
Well completed in "Silurian System" (350SLRN) local aquifer