Latitude 41°43'15", Longitude 87°31'31" NAD27 Cook County, Illinois, Hydrologic Unit 04040001
Well depth: 45 feet Hole depth: 45 feet Land surface altitude: 592feet above sea level NAVD88. Well completed in "Sand and gravel aquifers (glaciated regions)" (N100GLCIAL) national aquifer. Well completed in "Quaternary System" (110QRNR) local aquifer