Latitude 38°47'14.1", Longitude 89°58'53.0" NAD83 Madison County, Illinois, Hydrologic Unit 07140101
Land surface altitude: 555 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