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Groundwater levels for the Nation

! Important: Next Generation Monitoring Location Page

USGS 411112088180602 31N 8E- 4.1a2

Grundy County, Illinois
Latitude  41°11'12", Longitude  88°18'06" NAD27
Land-surface elevation 591 feet above NGVD29
The depth of the well is 1,933 feet below land surface.
This well is completed in the Cambrian-Ordovician aquifer system (S300CAMORD) national aquifer.
This well is completed in the Ordovician-Cambrian Systems (367OVCB) local aquifer.

Period of record
Begin Date End Date Levels
1987-06-10 1987-06-10 1

 
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