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Groundwater levels for the Nation

! Important: Next Generation Monitoring Location Page

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Agency code = usgs
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  • 401802090032809
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USGS 401802090032809 21N9W-1.1f9

Mason County, Illinois
Hydrologic Unit Code 07130003
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.
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Graph of groundwater level data at USGS 401802090032809 21N9W-1.1f9
Breaks in the plot represent a gap of at least one year between field measurements.
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