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Groundwater levels for the Nation

! Important: Next Generation Monitoring Location Page

USGS 420621087540001 42N11E-24.5f1

Cook County, Illinois
Latitude  42°06'21", Longitude  87°54'00" NAD27
Land-surface elevation 643 feet above NGVD29
The depth of the well is 1,323 feet below land surface.
The depth of the hole is 1,323 feet below land surface.

Period of record
Begin Date End Date Levels
1972-03-24 1972-03-24 1

 
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