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DESCRIPTION:

Latitude 41°42'38",   Longitude 87°54'39"   NAD83
Cook County, Illinois   , Hydrologic Unit 07120004

Well depth: 170 feet
Hole depth: 170 feet
Land surface altitude: 655 feet above NGVD29.
Well completed in "Silurian-Devonian aquifers" (N400SLRDVN) national aquifer.
Well completed in "Silurian System" (350SLRN) local aquifer

AVAILABLE DATA:

Data Type	Begin Date	End Date	Count
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