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DESCRIPTION:

Latitude 40°25'30",   Longitude 89°46'42"   NAD27
Mason County, Illinois   , Hydrologic Unit 07130004

Well depth: 100 feet
Hole depth: 100 feet
Land surface altitude: 490.00 feet above NGVD29.
Well completed in "Sand and gravel aquifers (glaciated regions)" (N100GLCIAL) national aquifer.
Well completed in "Quaternary System" (110QRNR) local aquifer

AVAILABLE DATA:

Data Type	Begin Date	End Date	Count
Field groundwater-level measurements	1967-05-11	1985-02-28	5
Field/Lab water-quality samples	1984-05-17	1985-02-28	4
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