Latitude 41°25'53", Longitude 90°24'57" NAD27
Henry County, Illinois , Hydrologic Unit 07090005
Well depth: 427 feet Land surface altitude: 710
feet above NGVD29.
Well completed in "Silurian-Devonian aquifers" (N400SLRDVN) national aquifer.
Well completed in "Silurian System" (350SLRN) local aquifer