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Groundwater levels for the Nation

! Important: Next Generation Monitoring Location Page

USGS 420012088071001 41N10E-32.5h1

Cook County, Illinois
Latitude  42°00'12", Longitude  88°07'10" NAD27
Land-surface elevation 826 feet above NGVD29
The depth of the well is 0,250 feet below land surface.
The depth of the hole is 250 feet below land surface.
This well is completed in the Silurian-Devonian aquifers (N400SLRDVN) national aquifer.
This well is completed in the Silurian System (350SLRN) local aquifer.

Period of record
Begin Date End Date Levels
1966-12-30 1979-08-14 3

 
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