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Groundwater levels for the Nation

! Important: Next Generation Monitoring Location Page

USGS 413919087405001 37N13E-36.1e1

Cook County, Illinois
Latitude  41°39'19", Longitude  87°40'50" NAD27
Land-surface elevation 636 feet above NGVD29
The depth of the well is 1,649 feet below land surface.
This well is completed in the Cambrian-Ordovician aquifer system (S300CAMORD) national aquifer.
This well is completed in the Ironton-Galesville (372IRGL) local aquifer.

Period of record
Begin Date End Date Levels
1909 1909 1

 
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