Latitude 38°45'14.8", Longitude 89°59'18.5" NAD83 Madison County, Illinois, Hydrologic Unit 07140101
Land surface altitude: 545 feet above sea level NGVD29. Well completed in "Sand and gravel aquifers (glaciated regions)" (N100GLCIAL) national aquifer. Well completed in "QUATERNARY SYSTEM" (110QRNR) local aquifer