Latitude 41°30'38", Longitude 90°11'41" NAD27
Henry County, Illinois , Hydrologic Unit 07090007
Well depth: 400 feet Land surface altitude: 695
feet above NGVD29.
Well completed in "Silurian-Devonian aquifers" (N400SLRDVN) national aquifer.
Well completed in "Silurian System" (350SLRN) local aquifer