Latitude 41°12'09", Longitude 90°35'14" NAD27
Mercer County, Illinois , Hydrologic Unit 07080104
Well depth: 655 feet Land surface altitude: 794
feet above NAVD88.
Well completed in "Silurian-Devonian aquifers" (N400SLRDVN) national aquifer.
Well completed in "Silurian System" (350SLRN) local aquifer