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DESCRIPTION:

Latitude 41°46'33",   Longitude 88°08'05"   NAD27
Dupage County, Illinois   , Hydrologic Unit 07120004

Well depth: 189 feet
Hole depth: 190 feet
Land surface altitude: 698.00 feet above NGVD29.
Well completed in "Silurian-Devonian aquifers" (N400SLRDVN) national aquifer.
Well completed in "Silurian System" (350SLRN) local aquifer

AVAILABLE DATA:

Data Type	Begin Date	End Date	Count
Field groundwater-level measurements	1931-01-07	1987-05-12	24
Field/Lab water-quality samples	1984-05-24	1991-11-20	12
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