Latitude 38°38'47.0", Longitude 90°00'35.2" NAD83 St Clair County, Illinois, Hydrologic Unit 07140101
Land surface altitude: 445 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