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Groundwater levels for the Nation

! Important: Next Generation Monitoring Location Page

USGS 413348087395701 36N14E-31.5d1

Cook County, Illinois
Latitude  41°33'48", Longitude  87°39'57" NAD27
Land-surface elevation 625 feet above NGVD29
The depth of the well is 1,691 feet below land surface.
This well is completed in the Cambrian-Ordovician aquifer system (S300CAMORD) national aquifer.
This well is completed in the St. Peter Sandstone (365STPR) local aquifer.

Period of record
Begin Date End Date Levels
1948-07-19 1948-07-19 1

 
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