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Groundwater levels for the Nation

! Important: Next Generation Monitoring Location Page

Search Results -- 1 sites found

Agency code = usgs
site_no list =
  • 420216087551201
Minimum number of levels = 1
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USGS 420216087551201 41N12E-18.8a1

Cook County, Illinois
Hydrologic Unit Code 07120004
Latitude  42°02'16", Longitude  87°55'12" NAD27
Land-surface elevation 655 feet above NGVD29
The depth of the well is 1,813 feet below land surface.
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Graph of groundwater level data at USGS 420216087551201 41N12E-18.8a1
Breaks in the plot represent a gap of at least one year between field measurements.
Download a presentation-quality graph