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Groundwater levels for the Nation

! Important: Next Generation Monitoring Location Page

USGS 421906088153601 44N 8E- 2.1b1

Mchenry County, Illinois
Latitude  42°19'06", Longitude  88°15'36" NAD27
Land-surface elevation 779 feet above NGVD29
The depth of the well is 180 feet below land surface.
The depth of the hole is 180 feet below land surface.
This well is completed in the Cambrian-Ordovician aquifer system (S300CAMORD) national aquifer.
This well is completed in the Maquoketa Group (362MQKTG) local aquifer.

Period of record
Begin Date End Date Levels
1957-01-01 1957-01-01 1

 
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