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DESCRIPTION:

Latitude 41°40'37",   Longitude 87°31'59"   NAD27
Cook County, Illinois   , Hydrologic Unit 04040001

Well depth: 23 feet
Hole depth: 23 feet
Land surface altitude: 587 feet above NGVD29.
Well completed in "Sand and gravel aquifers (glaciated regions)" (N100GLCIAL) national aquifer.
Well completed in "Sand (Holocene and/or Pleistocene)" (110SANDP) local aquifer

AVAILABLE DATA:

Data Type	Begin Date	End Date	Count
Field groundwater-level measurements	1993-06-15	1993-06-15	1
Field/Lab water-quality samples	1993-06-15	1993-06-15	1
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