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USGS Groundwater Information

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USGS Groundwater Watch

USGS maintains a network of active wells to provide basic statistics about groundwater levels.

 [Image: USGS active water level wells location map.]

USGS in Your State

USGS Water Science Centers are located in each state.

 [Map: There is a USGS Water Science Center office in each State.] Washington Oregon California Idaho Nevada Montana Wyoming Utah Colorado Arizona New Mexico North Dakota South Dakota Nebraska Kansas Oklahoma Texas Minnesota Iowa Missouri Arkansas Louisiana Wisconsin Illinois Mississippi Michigan Indiana Ohio Kentucky Tennessee Alabama Pennsylvania West Virginia Georgia Florida Caribbean Alaska Hawaii and Pacific Islands New York Vermont New Hampshire Maine Massachusetts South Carolina North Carolina Rhode Island Virginia Connecticut New Jersey Maryland-Delaware-D.C.

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:

Groundwater Levels

USGS Groundwater Watch

 [Map: USGS Groundwater Watch] 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.


 [Map: USGS WaterAlert Data Stations] 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).

USGS Online Groundwater Data (NWIS)

 [Image: Sample graph of groundwater levels.] The National Water Information System (NWIS) groundwater database consists of more than 850,000 records of wells, springs, test holes, tunnels, drains, and excavations in the United States.

USGS Water Services

 [Screenshot of web services web page] 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.

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National Aquifer Code Reference List

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.

Ground Water Atlas of the U.S.

 [Map: Map of U.S. principal aquifers] The Ground Water Atlas of the U.S. provides a summary of the most important information available for each principal aquifer.

National Atlas - Aquifers

 [Map: Principal U.S. aquifersNational 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.)

National Cooperative Geologic Mapping Program

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 Aquifers

At 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.

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Water Use

Water Use in the U.S.

 [Map: Map of U.S. water use data in 2000] 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.

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Groundwater Quality Data

USGS Water-Quality Data for the Nation - National Water Information System (NWIS)

The USGS National Water Information System (NWIS) water-quality database is a compilation of over 4.4 million historical water quality analyses across the Nation.

USGS Water-Quality Data

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.

Water-Quality Web Services

Web services allow for the automated sharing of USGS and U.S. Environmental Protection Agency water-quality monitoring data.

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Local Water Data In Your Area

 [Map: There is a USGS Water Science Center office in each State.] Your local USGS Water Science Center

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.

 [Map: Science in Your Watershed] Science in Your Watershed

The Science in Your Watershed web site enables you to locate scientific information organized on a watershed basis.

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Other Water Data Resources

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Page Contact Information: Contact the USGS Office of Groundwater
Page Last Modified: Tuesday, 28-Oct-2014 16:56:15 EDT