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Groundwater levels for the Nation

! Important: Next Generation Monitoring Location Page

USGS 412209088510901 34N 3E-35.7a1

Lasalle County, Illinois
Latitude  41°22'09", Longitude  88°51'09" NAD27
Land-surface elevation 612 feet above NGVD29
The depth of the well is 540 feet below land surface.
The depth of the hole is 540 feet below land surface.

Period of record
Begin Date End Date Levels
1966-11 1966-11 1

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