New & Noteworthy

 Report to Congress: Progress Toward Establishing a National Assessment of Water Availability and Use

 March 10-16: National Groundwater Awareness Week

 Fact Sheet: Understanding and Managing the Effects of Groundwater Pumping on Streamflow

  Annotated List of Classic Pre-1980 USGS Groundwater Papers on Quantitative Groundwater-Flow Analysis

  WaterNow: Get current water conditions by text or email

 Groundwater's Greater Role in Waterways Demonstrated in Virginia

  Circular: Streamflow Depletion By Wells: Understanding and Managing the Effects of Groundwater Pumping on Streamflow

 MODPATH v6 released

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

 Water Resources

 Water Quality

 Water Use

 Surface Water

USGS Groundwater Data

The U.S. Geological Survey provides unbiased, timely, and relevant data on the groundwater resources of the Nation:

• Groundwater Levels
• Aquifers
• Water Use
• Groundwater Quality Data
• Local Groundwater Data
• Other Sources of Water Data

Groundwater Levels

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.

WaterAlert

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)

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 Annual Water Data Reports

Water resources data are published annually. These archival products supplement direct access to current and historical water data provided by NWISWeb.

USGS Water Services

This site serves USGS water data via automated means using web services and extensible markup language (XML) as well as other popular media types.

• Discrete Groundwater Levels Web Service

Groundwater Level Data by State or Region

Sources of groundwater level data, by State:

• USGS Water Science Center in Your State
• Arizona Groundwater Conditions Interactive Map

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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Aquifers

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.

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

National Atlas - 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.)

• National Atlas map layer - Aquifers of Alluvial and Glacial Origin
• National Atlas map layer - Principal Aquifers

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.

• National Geologic Map Database Project
• Geologic Names Lexicon

Local Aquifers

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Water Use

Water Use in the U.S.

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.

• Estimated Water Use in the U.S. in 2005 (Circular 1344) | Summary Fact Sheet | Data
• National Atlas map layer - Estimated Use of Water in the U.S.

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Groundwater Quality Data

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

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

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.

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

• Find other USGS water data at the USGS water data discovery web site.
• Additional water-resources maps and GIS information (note: list is not comprehensive)
• Locate, downaload, or order USGS Maps, Imagery, and Publications.
• Explore other sources of groundwater data and information.

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