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Groundwater levels for the Nation

! Important: Next Generation Monitoring Location Page

USGS 420222087570601 41N11E-14.5b1

Cook County, Illinois
Latitude  42°02'22", Longitude  87°57'06" NAD27
Land-surface elevation 672.00 feet above NGVD29
The depth of the well is 1,361 feet below land surface.
The depth of the hole is 1,382 feet below land surface.

Period of record
Begin Date End Date Levels
1961-09-06 1961-09-06 1

 
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