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DESCRIPTION:

Latitude 41°53'22",   Longitude 87°53'41"   NAD27
Cook County, Illinois   , Hydrologic Unit 07120004

Well depth: 1960 feet
Hole depth: 1965 feet
Land surface altitude: 645.00 feet above NGVD29.

AVAILABLE DATA:

Data Type	Begin Date	End Date	Count
Field groundwater-level measurements	1964-01-01	1964-01-01	1
Field/Lab water-quality samples	1964-01-01	1987-12-22	19
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