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DESCRIPTION:

Latitude 41°32'49",   Longitude 87°36'12"   NAD27
Cook County, Illinois   , Hydrologic Unit 07120003

Well depth: 1776 feet
Hole depth: 1776 feet
Land surface altitude: 618.00 feet above NGVD29.

AVAILABLE DATA:

Data Type	Begin Date	End Date	Count
Field groundwater-level measurements	1964-02-15	1964-02-15	1
Field/Lab water-quality samples	1964-03-01	1983-02-15	10
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