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Groundwater levels for the Nation

! Important: Next Generation Monitoring Location Page

USGS 415329087514101 39N12E-10.8h1

Cook County, Illinois
Latitude  41°53'29", Longitude  87°51'41" NAD27
Land-surface elevation 628 feet above NGVD29
The depth of the well is 1,965 feet below land surface.

Period of record
Begin Date End Date Levels
1898-01-01 1898-01-01 1

 
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