Latitude 41°28'14", Longitude 90°22'00" NAD27
Henry County, Illinois , Hydrologic Unit 07090007
Well depth: 455 feet Land surface altitude: 573
feet above NGVD29.
Well completed in "Silurian-Devonian aquifers" (N400SLRDVN) national aquifer.
Well completed in "Silurian System" (350SLRN) local aquifer