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DESCRIPTION:

Latitude 41°52'28",   Longitude 87°52'04"   NAD27
Cook County, Illinois   , Hydrologic Unit 07120004

Well depth: 1845 feet
Hole depth: 1845 feet
Land surface altitude: 627.00 feet above NGVD29.

AVAILABLE DATA:

Data Type	Begin Date	End Date	Count
Field groundwater-level measurements	1972-07-15	1972-07-15	1
Field/Lab water-quality samples	1971-07-01	1987-12-22	13
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