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Groundwater levels for Illinois

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! Important: Next Generation Monitoring Location Page

USGS 421745088481401 44N 4E-18.1g1

Boone County, Illinois
Latitude  42°17'45", Longitude  88°48'14" NAD27
Land-surface elevation 795 feet above NGVD29
The depth of the well is 165 feet below land surface.
The depth of the hole is 165 feet below land surface.
This well is completed in the Cambrian-Ordovician aquifer system (S300CAMORD) national aquifer.
This well is completed in the Galena-Platteville Groups (365GLPV) local aquifer.

Period of record
Begin Date End Date Levels
1977 1993-07-20 2

 
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