Latitude 41°40'21", Longitude 87°36'43" NAD27
Cook County, Illinois , Hydrologic Unit 07120003
Well depth: 20 feet Hole depth: 22 feet
Land surface altitude: 593.16
feet above NGVD29.
Well completed in "Sand and gravel aquifers (glaciated regions)" (N100GLCIAL) national aquifer.
Well completed in "Quaternary System" (110QRNR) local aquifer