Latitude 38°54'46.1", Longitude 90°01'58.5" NAD83 Madison County, Illinois, Hydrologic Unit 07110009
Land surface altitude: 525 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