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Groundwater levels for the Nation

! Important: Next Generation Monitoring Location Page

USGS 420550087594001 42N11E-19.4a1

Cook County, Illinois
Latitude  42°05'50", Longitude  87°59'40" NAD27
Land-surface elevation 722.00 feet above NGVD29
The depth of the well is 1,320 feet below land surface.
The depth of the hole is 1,320 feet below land surface.

Period of record
Begin Date End Date Levels
1972-10-26 1972-10-26 1

 
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