Latitude 38°30'51.8", Longitude 89°26'28.3" NAD83 Clinton County, Illinois, Hydrologic Unit 07140202
Land surface altitude: 414 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