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Groundwater levels for Illinois

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USGS 415941087584601 41N11E-28.1a

Cook County, Illinois
Latitude  41°59'41.0", Longitude  87°58'46.0" NAD83
Land-surface elevation 716 feet above NGVD29
The depth of the well is 16.1 feet below land surface.
The depth of the hole is 16.1 feet below land surface.
This well is completed in the Sand and gravel aquifers (glaciated regions) (N100GLCIAL) national aquifer.
This well is completed in the Quaternary System (110QRNR) local aquifer.

Period of record
Begin Date End Date Levels
2012-04-23 2013-03-25 6

 
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