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Groundwater levels for the Nation

! Important: Next Generation Monitoring Location Page

USGS 413024087375401 35N14E-21.7e1

Cook County, Illinois
Latitude  41°30'24", Longitude  87°37'54" NAD27
Land-surface elevation 655.00 feet above NGVD29
The depth of the hole is 1,794 feet below land surface.

Period of record
Begin Date End Date Levels
1942-03-27 1942-03-27 1

 
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