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DESCRIPTION:

Latitude 42°17'17",   Longitude 87°59'37"   NAD27
Lake County, Illinois   , Hydrologic Unit 07120004

Well depth: 304 feet
Hole depth: 304 feet
Land surface altitude: 748 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	1966-10-15	1986-03-12	3
Field/Lab water-quality samples	1985-09-17	1986-03-12	2
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