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DESCRIPTION:

Latitude 41°40'09",   Longitude 87°36'42"   NAD27
Cook County, Illinois   , Hydrologic Unit 07120003

Well depth: not determined.
Hole depth: 85 feet
Land surface altitude: 591.62 feet above NGVD29.
Well completed in "Silurian-Devonian aquifers" (N400SLRDVN) national aquifer.
Well completed in "Racine Formation" (355RCIN) local aquifer

AVAILABLE DATA:

Data Type	Begin Date	End Date	Count
Field groundwater-level measurements	1987-11-05	1988-05-12	5
Field/Lab water-quality samples	1993-06-24	1993-06-24	1
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