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DESCRIPTION:

Latitude 42°07'53",   Longitude 87°55'41"   NAD27
Cook County, Illinois   , Hydrologic Unit 07120004

Well depth: 241 feet
Hole depth: 245 feet
Land surface altitude: 646 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
Field groundwater-level measurements	1955-07-14	1955-07-14	1
Revisions	Loading...

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