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DESCRIPTION:

Latitude 41°30'37",   Longitude 90°11'35"   NAD27
Henry County, Illinois   , Hydrologic Unit 07090007

Well depth: 400 feet
Land surface altitude: 660 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/Lab water-quality samples	1987-02-25	1987-02-25	1
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