USGS Groundwater Information
New & Noteworthy
USGS Groundwater Watch
USGS maintains a network of active wells to provide basic statistics about groundwater levels.
USGS in Your State
USGS Water Science Centers are located in each state.
Other USGS Water Science Areas
USGS Groundwater Data
The U.S. Geological Survey provides unbiased, timely, and relevant data on the groundwater resources of the Nation:
The Groundwater Watch web sites group related wells and data from National Water Information System (NWIS) active well networks and provide basic statistics about the water-level data. The USGS Groundwater Watch web site provides KMZ files presenting the mapped visualization of basic groundwater-level data statistics. Networks include the Active Groundwater Level Network, the Climate Response Network, the Real-Time Groundwater Level Network, regional and state networks, and more.
The USGS WaterAlert service sends e-mail or text messages when certain parameters measured by a USGS data-collection station exceed thresholds set by the user. Alerts are available for selected USGS groundwater, surface-water, water-quality, and precipitation data-collection stations that are part of the National Water Information System (NWIS).
This site serves USGS water data via automated means using web services and extensible markup language (XML) as well as other popular media types.
Groundwater Level Data by State or Region
Sources of groundwater level data, by State:
Regional groundwater data and (or) GIS datasets may become available as USGS regional groundwater studies are completed. For more information, contact the regional study project coordinator for your area of interest.
The National Aquifer Code Reference List provides the National Water Information System (NWIS) codes used for the principal U.S. aquifers and information about the aquifers.
National Atlas map layers include information on the principal aquifers of the United States, viewable online as or downloadable GIS data sets. (Please note that the National Atlas maps do not show the entire extent of an aquifer, only its subcrop or outcrop area.)
The National Cooperative Geologic Mapping Program (NCGMP) provides accurate geologic maps and three-dimensional framework models that help to sustain and improve the quality of life and economic vitality of the Nation and to mitigate natural hazards.
Local AquifersAt this time, there is no centralized USGS database of information or GIS datasets for all local aquifers across the Nation. Contact your local USGS Water Science Center to find out what USGS water-resources GIS datasets exist for your area of interest.
The USGS compiles water-use information aggregated at the county, state, and national levels. Every five years, data at the county level are compiled into a national water-use data system and state-level data are published in a national circular.
The USGS collects, analyzes, archives, and disseminates data and information describing the quality of the Nation's surface-water and groundwater resources. Visit the USGS Water-Quality Information web site to find about more about what USGS water-quality data are available.
Web services allow for the automated sharing of USGS and U.S. Environmental Protection Agency water-quality monitoring data.
USGS Water Science Centers are located in every state. Visit your state USGS Water Science Center web site or call them for information about local groundwater data.
The Science in Your Watershed web site enables you to locate scientific information organized on a watershed basis.