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Groundwater levels for the Nation

! Important: Next Generation Monitoring Location Page

USGS 421900088303501 44N 6E- 2.2a

Mchenry County, Illinois
Latitude  42°19'00", Longitude  88°30'35" NAD27
Land-surface elevation 865 feet above NGVD29

Period of record
Begin Date End Date Levels
1979-04-25 1979-04-25 1

 
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