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Groundwater levels for the Nation

! Important: Next Generation Monitoring Location Page

USGS 412841087422701 35N13E-35.6e1

Cook County, Illinois
Latitude  41°28'41", Longitude  87°42'27" NAD27
Land-surface elevation 730 feet above NGVD29
The depth of the well is 0,558 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.

Period of record
Begin Date End Date Levels
1986-12-12 1986-12-12 1

 
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