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Groundwater levels for the Nation

! Important: Next Generation Monitoring Location Page

USGS 420453087583301 42N11E-29.4a1

Cook County, Illinois
Latitude  42°04'53", Longitude  87°58'33" NAD27
Land-surface elevation 680.00 feet above NGVD29
The depth of the hole is 1,525 feet below land surface.

Period of record
Begin Date End Date Levels
1946-04-14 1946-04-14 1

 
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