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DESCRIPTION:

Latitude 42°08'31",   Longitude 87°55'55"   NAD27
Cook County, Illinois   , Hydrologic Unit 07120004

Well depth: 1355 feet
Hole depth: 1355 feet
Land surface altitude: 651.00 feet above NGVD29.
Well completed in "Cambrian-Ordovician aquifer system" (S300CAMORD) national aquifer.
Well completed in "Ordovician System" (360ODVC) local aquifer

AVAILABLE DATA:

Data Type	Begin Date	End Date	Count
Field groundwater-level measurements	1964-05-01	1964-05-01	1
Field/Lab water-quality samples	1964-05-01	1983-04-27	5
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