Latitude 41°12'09", Longitude 90°35'15" NAD27
Mercer County, Illinois , Hydrologic Unit 07080104
Well depth: 651 feet Land surface altitude: 795
feet above NGVD29.
Well completed in "Silurian-Devonian aquifers" (N400SLRDVN) national aquifer.
Well completed in "Silurian System" (350SLRN) local aquifer