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DESCRIPTION:

Latitude 41°52'14",   Longitude 87°54'11"   NAD27
Cook County, Illinois   , Hydrologic Unit 07120004

Well depth: 1970 feet
Hole depth: 1970 feet
Land surface altitude: 668.97 feet above NGVD29.

AVAILABLE DATA:

Data Type	Begin Date	End Date	Count
Field groundwater-level measurements	1940-06-08	1940-06-08	1
Field/Lab water-quality samples	1940-09-01	1940-09-01	1
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