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DESCRIPTION:

Latitude 41°59'24",   Longitude 88°09'28"   NAD27
Cook County, Illinois   , Hydrologic Unit 07120006

Well depth: 1310 feet
Hole depth: 1434 feet
Land surface altitude: 820.00 feet above NGVD29.
Well completed in "Cambrian-Ordovician aquifer system" (S300CAMORD) national aquifer.
Well completed in "Ordovician-Cambrian Systems" (367OVCB) local aquifer

AVAILABLE DATA:

Data Type	Begin Date	End Date	Count
Field groundwater-level measurements	1968-01-04	1968-01-04	1
Field/Lab water-quality samples	1968-03-01	1983-09-19	12
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