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DESCRIPTION:

Latitude 41°42'40.34",   Longitude 87°40'33.47"   NAD83
Cook County, Illinois   , Hydrologic Unit 07120003

Well depth: 90 feet
Hole depth: 90 feet
Land surface altitude: 664 feet above NGVD29.
Well completed in "Sand and gravel aquifers (glaciated regions)" (N100GLCIAL) national aquifer.
Well completed in "Quaternary System" (110QRNR) local aquifer

AVAILABLE DATA:

Data Type	Begin Date	End Date	Count
Field groundwater-level measurements	1992-06-23	2015-12-17	70
Field/Lab water-quality samples	1993-06-21	1993-06-22	2
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