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Groundwater levels for the Nation

! Important: Next Generation Monitoring Location Page

USGS 414839087524701 38N12E- 4.4d1

Cook County, Illinois
Latitude  41°48'39", Longitude  87°52'47" NAD27
Land-surface elevation 640 feet above NGVD29
The depth of the well is 1,962 feet below land surface.
The depth of the hole is 2,005 feet below land surface.

Period of record
Begin Date End Date Levels
1944-05-22 1944-05-22 1

 
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