Warning: Javascript must be enabled to use all the features on this page!


Page Loading - Please Wait...

* We've detected you're using a mobile device. Find our Next Generation Station Page here.
Click to hideNews Bulletins

Groundwater levels for the Nation

! Important: Next Generation Monitoring Location Page

Search Results -- 1 sites found

site_no list =
  • 421656089031101
Minimum number of levels = 1
Save file of selected sites to local disk for future upload

USGS 421656089031101 44N 2E-18.7a1

Winnebago County, Illinois
Hydrologic Unit Code 07090005
Latitude  42°16'56", Longitude  89°03'11" NAD27
Land-surface elevation 817 feet above NAVD88
The depth of the well is 1,312 feet below land surface.
This well is completed in the Cambrian-Ordovician aquifer system (S300CAMORD) national aquifer.
This well is completed in the Ordovician-Cambrian Systems (367OVCB) local aquifer.
Output formats
Table of data
Tab-separated data
Graph of data
Reselect period
Graph of groundwater level data at USGS 421656089031101 44N 2E-18.7a1
Breaks in the plot represent a gap of at least one year between field measurements.
Download a presentation-quality graph