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Groundwater levels for the Nation

! Important: Next Generation Monitoring Location Page

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USGS 420538088024301 42N10E-27.1g3

Cook County, Illinois
Hydrologic Unit Code 07120004
Latitude  42°05'38", Longitude  88°02'43" NAD27
Land-surface elevation 740 feet above NGVD29
The depth of the well is 225 feet below land surface.
The depth of the hole is 225 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 420538088024301 42N10E-27.1g3
Breaks in the plot represent a gap of at least one year between field measurements.
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