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DESCRIPTION:

Latitude 41°33'33",   Longitude 87°41'18"   NAD27
Cook County, Illinois   , Hydrologic Unit 07120003

Well depth: not determined.
Hole depth: 1713 feet
Land surface altitude: 660.00 feet above NGVD29.

AVAILABLE DATA:

Data Type	Begin Date	End Date	Count
Field groundwater-level measurements	1968-10-22	1968-10-22	1
Field/Lab water-quality samples	1968-10-01	1980-10-30	8
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