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Groundwater levels for the Nation

! Important: Next Generation Monitoring Location Page

USGS 420323088024301 41N10E-12.7d1

Cook County, Illinois
Latitude  42°03'28", Longitude  88°02'45" NAD27
Land-surface elevation 740 feet above NGVD29
The depth of the well is 0,258 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
1985-08-21 1985-08-21 1

 
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