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DESCRIPTION:

Latitude 41°38'40",   Longitude 87°49'40"   NAD27
Cook County, Illinois   , Hydrologic Unit 07120004

Well depth: 1683 feet
Hole depth: 1683 feet
Land surface altitude: 712.00 feet above NGVD29.

AVAILABLE DATA:

Data Type	Begin Date	End Date	Count
Field groundwater-level measurements	1979-10-16	1984-11-14	4
Field/Lab water-quality samples	1984-06-05	1984-11-14	3
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