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Groundwater levels for the Nation

! Important: Next Generation Monitoring Location Page

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USGS 415940088102501 41N 9E-35.4d1

Cook County, Illinois
Hydrologic Unit Code 07120006
Latitude  41°59'40", Longitude  88°10'25" NAD27
Land-surface elevation 787 feet above NAVD88
The depth of the well is 115 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 415940088102501 41N 9E-35.4d1
Breaks in the plot represent a gap of at least one year between field measurements.
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