USGS Groundwater Information
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U.S. Department of the Interior |
U.S. Geological Survey
URL: http://water.usgs.gov/ogw/index.html
Page Contact Information: Contact the USGS Office of Groundwater
Page Last Modified: Wednesday, 28-Dec-2016 00:46:38 EST
![[Map: There is a USGS Water Science Center office in each State.]](https://webarchive.library.unt.edu/web/20170124221639im_/https://water.usgs.gov/ogw/images/usmapsmall.gif)
![[Map: Statistics about groundwater levels in USGS Active Groundwater Level Network wells]](https://webarchive.library.unt.edu/web/20170124221639im_/https://groundwaterwatch.usgs.gov/gwwb.png "USGS Active Groundwater Level Network wells have been measured at least once within the past 13 months.")
![[Map: Statistics about groundwater levels in USGS Climate Response Network wells]](https://webarchive.library.unt.edu/web/20170124221639im_/https://groundwaterwatch.usgs.gov/crn/crn.png "USGS Climate Response Network groundwater wells are used to monitor the effects of droughts and other climate variability on groundwater levels.")
![[Map of Principal Aquifers of the United States.]](images/USGS-C1323_Ground-Water-Availability-in-US_Page_01-small.jpg "Principal Aquifers of the United States, from the National Atlas")
![[Diagram of where groundwater occurs.]](images/rural-homeowner-groundwater-fig2.jpg "Diagram of where groundwater occurs")
![[Map of USGS Regional Groundwater Availability Studies, Updated April 2015.]](images/gwrp/StudyLocationMap2015.jpg "Map of USGS Regional Groundwater Studies")