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Groundwater levels for the Nation

! Important: Next Generation Monitoring Location Page

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USGS 413043087391201 35N14E-20.8d1

Cook County, Illinois
Hydrologic Unit Code 07120003
Latitude  41°30'43", Longitude  87°39'12" NAD27
Land-surface elevation 665.00 feet above NGVD29
The depth of the well is 406 feet below land surface.
The depth of the hole is 406 feet below land surface.
This well is completed in the Silurian-Devonian aquifers (N400SLRDVN) national aquifer.
This well is completed in the Silurian System (350SLRN) local aquifer.
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Graph of groundwater level data at USGS 413043087391201 35N14E-20.8d1
Breaks in the plot represent a gap of at least one year between field measurements.
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