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Groundwater levels for Illinois

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USGS 401322089153901 21N 1W-31.8a

Logan County, Illinois
Hydrologic Unit Code 07130009
Latitude  40°13'22.1", Longitude  89°15'39.5" NAD83
Land-surface elevation 600 feet above NGVD29
The depth of the well is 16.0 feet below land surface.
The depth of the hole is 19.5 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.
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Graph of groundwater level data at USGS 401322089153901 21N 1W-31.8a
Breaks in the plot represent a gap of at least one year between field measurements.
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