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Groundwater levels for the Nation

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  • 420523088055301
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USGS 420523088055301 42N10E-29.7e1

Cook County, Illinois
Hydrologic Unit Code 07120006
Latitude  42°05'23", Longitude  88°05'53" NAD27
Land-surface elevation 820.00 feet above NGVD29
The depth of the well is 1,392 feet below land surface.
The depth of the hole is 1,392 feet below land surface.
This well is completed in the Cambrian-Ordovician aquifer system (S300CAMORD) national aquifer.
This well is completed in the Ordovician-Cambrian Systems (367OVCB) local aquifer.
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Graph of groundwater level data at USGS 420523088055301 42N10E-29.7e1
Breaks in the plot represent a gap of at least one year between field measurements.
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