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Groundwater levels for the Nation

! Important: Next Generation Monitoring Location Page

USGS 422730088363001 46N 5E-24.8h

Mchenry County, Illinois
Latitude  42°27'30", Longitude  88°36'30" NAD27
Land-surface elevation 938 feet above NGVD29

Period of record
Begin Date End Date Levels
1979-04-30 1980-12-04 11

 
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