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DESCRIPTION:

Latitude 41°59'30",   Longitude 88°11'06"   NAD27
Cook County, Illinois   , Hydrologic Unit 07120006

Well depth: 200 feet
Land surface altitude: 804 feet above NAVD88.
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	1984-09-18	1985-03-01	3
Field/Lab water-quality samples (Legacy QW is frozen as of March 2024, newer data may be found on MLP)	1984-09-18	2013-08-27	8
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