Latitude 41°10'20", Longitude 90°59'40" NAD27
Mercer County, Illinois , Hydrologic Unit 07080104
Well depth: 138 feet Hole depth: 140 feet
Land surface altitude: 570
feet above NGVD29.
Well completed in "Sand and gravel aquifers (glaciated regions)" (N100GLCIAL) national aquifer.
Well completed in "Quaternary System" (110QRNR) local aquifer