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DESCRIPTION:

Latitude 42°02'20",   Longitude 87°58'32"   NAD27
Cook County, Illinois   , Hydrologic Unit 07120004

Well depth: 1440 feet
Hole depth: 1440 feet
Land surface altitude: 690.00 feet above NGVD29.

AVAILABLE DATA:

Data Type	Begin Date	End Date	Count
Field groundwater-level measurements	1973-10-16	1973-10-16	1
Field/Lab water-quality samples	1973-12-04	1982-08-23	4
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