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Groundwater levels for the Nation

! Important: Next Generation Monitoring Location Page

USGS 421604088194201 44N 8E-29.6g

Mchenry County, Illinois
Latitude  42°16'04", Longitude  88°19'42" NAD27
Land-surface elevation 905 feet above NGVD29
The depth of the well is 203 feet below land surface.

Period of record
Begin Date End Date Levels
1973-11-01 1980-12-06 12

 
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