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Groundwater levels for the Nation

! Important: Next Generation Monitoring Location Page

USGS 401802090032809 21N9W-1.1f9

Mason County, Illinois
Latitude  40°18'02", Longitude  90°03'28" NAD27
Land-surface elevation 470 feet above NGVD29
The depth of the well is 84 feet below land surface.
The depth of the hole is 84 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
2007-08-29 2007-08-29 1

 
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