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DESCRIPTION:

Latitude 41°30'29",   Longitude 87°35'30"   NAD27
Cook County, Illinois   , Hydrologic Unit 07120003

Well depth: 1858 feet
Hole depth: 1858 feet
Land surface altitude: 665.00 feet above NGVD29.

AVAILABLE DATA:

Data Type	Begin Date	End Date	Count
Field groundwater-level measurements	1965-02-08	1965-02-08	1
Field/Lab water-quality samples	1965-02-01	1983-01-19	8
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