Latitude 41°40'11", Longitude 87°34'30" NAD83
Cook County, Illinois , Hydrologic Unit 04040001
Well depth: 15 feet Hole depth: 20 feet
Land surface altitude: 589
feet above NGVD29.
Well completed in "Sand and gravel aquifers (glaciated regions)" (N100GLCIAL) national aquifer.
Well completed in "Equality Formation-Dolton Member" (112EQLD) local aquifer