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Groundwater levels for the Nation

! Important: Next Generation Monitoring Location Page

USGS 421642087504201 44N12E-21.8f2

Lake County, Illinois
Latitude  42°16'42", Longitude  87°50'42" NAD27
Land-surface elevation 680.40 feet above NGVD29
The depth of the well is 1,804 feet below land surface.
The depth of the hole is 1,804 feet below land surface.

Period of record
Begin Date End Date Levels
1921-01-01 1921-01-01 1

 
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