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Groundwater levels for the Nation

! Important: Next Generation Monitoring Location Page

USGS 415221087484601 39N12E-13.4e1

Cook County, Illinois
Latitude  41°52'21", Longitude  87°48'46" NAD27
Land-surface elevation 623 feet above NGVD29
The depth of the well is 2,012 feet below land surface.

Period of record
Begin Date End Date Levels
1901-01-01 1901-01-01 1

 
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