Latitude 41°41'40", Longitude 87°42'19" NAD27
Cook County, Illinois , Hydrologic Unit 07120003
Well depth: 21 feet Hole depth: 24 feet
Land surface altitude: 624.31
feet above NGVD29.
Well completed in "Sand and gravel aquifers (glaciated regions)" (N100GLCIAL) national aquifer.
Well completed in "Clay (Holocene and/or Pleistocene)" (110CLAY) local aquifer