Latitude 41°39'30", Longitude 87°36'25" NAD27
Cook County, Illinois , Hydrologic Unit 07120003
Well depth: 20 feet Hole depth: 20 feet
Land surface altitude: 587
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