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DESCRIPTION:

Latitude 41°33'48",   Longitude 87°39'57"   NAD27
Cook County, Illinois   , Hydrologic Unit 07120003

Well depth: 1691 feet
Land surface altitude: 625 feet above NGVD29.
Well completed in "Cambrian-Ordovician aquifer system" (S300CAMORD) national aquifer.
Well completed in "St. Peter Sandstone" (365STPR) local aquifer

AVAILABLE DATA:

Data Type	Begin Date	End Date	Count
Field groundwater-level measurements	1948-07-19	1948-07-19	1
Field/Lab water-quality samples	1937-07-12	1946-04-12	2
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