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DESCRIPTION:

Latitude 42°18'03",   Longitude 87°55'48"   NAD27
Lake County, Illinois   , Hydrologic Unit 07120004

Well depth: 242 feet
Hole depth: 242 feet
Land surface altitude: 670 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	1959-05	1959-05	1
Field/Lab water-quality samples	1985-08-07	2002-01-14	2
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