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Groundwater levels for the Nation

! Important: Next Generation Monitoring Location Page

USGS 414900087491201 38N12E- 1.7e1

Cook County, Illinois
Latitude  41°49'00", Longitude  87°49'12" NAD27
Land-surface elevation 618 feet above NGVD29
The depth of the well is 1,980 feet below land surface.

Period of record
Begin Date End Date Levels
1929-06-01 1929-06-01 1

 
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