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Think you know about hurricanes? Take our pop quiz!

The USGS celebrates Hurricane Preparedness Week

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U.S. River Conditions, January to March 2022

New data visualization shows low- and high-flow events across the U.S. during the first months of 2022

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Willamette River Basin selected as 4th Integrated Water Science Basin

Studies in this Pacific Northwest basin will advance the science used to manage water for the diverse needs of major cities, fertile agriculture, and ecologically important species

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Increasing radium in groundwater potentially related to road salt application

New report connects increasing salinity to increasing radium concentrations in low-pH aquifer

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Rivers in the sky: 6 facts you should know about atmospheric rivers

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Looking for current water conditions?

The National Water Dashboard is an interactive, mobile-friendly tool that provides real-time water, weather, and flood information all in one place

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We're One USGS Water

Together with Science Centers and Regions across the Nation

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Water Resources

Water information is fundamental to national and local economic well-being, protection of life and property, and effective management of the Nation’s water resources. The USGS works with partners to monitor, assess, conduct targeted research, and deliver information on a wide range of water resources and conditions including streamflow, groundwater, water quality, and water use and availability.

USGS Water Data for the Nation

Current streamflow conditions map

Surface-water, groundwater, water-quality, and water-use data collected at approximately 1.9 million sites across all 50 states.

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Message from the Associate Director for Water

Photo of Don Cline

Learn more about the WMA from Dr. Don Cline, the Associate Director for Water Resources.

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Popular Water Data and Tools

Explore our science by the topical areas that drive the research and projects conducted by our Programs.

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News

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Hurricanes may pose a threat to people along the coasts and far inland

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Media Alert: USGS dye tracing study on the Kansas River to aid in protecting water supplies

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USGS Media Alert: USGS crews continue to measure and assess Yellowstone River flood conditions and probabilities

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Publications

Hydrogeology and simulation of groundwater flow in the Lucerne Valley groundwater basin, California

The Lucerne Valley is in the southwestern part of the Mojave Desert and is about 75 miles northeast of Los Angeles, California. The Lucerne Valley groundwater basin encompasses about 230 square miles and is separated from the Upper Mojave Valley groundwater basin by splays of the Helendale Fault. Since its settlement, groundwater has been the primary source of water for agricultural, industrial, m
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Water Resources, California Water Science Center

Assessment of persistent chemicals of concern in white sturgeon (Acipenser transmontanus) in the Hanford Reach of the Columbia River, southeastern Washington, 2009

White sturgeon (Acipenser transmontanus) are long-lived, late-maturing, benthic-feeding fish that are ideal candidates for assessing the bioaccumulation of persistent chemicals. In this study, composite tissue samples of brain, liver, gonad, and fillet were collected from white sturgeon in 2009 from five sites in the Hanford Reach of the Columbia River near Hanford, Washington. The composite tissu
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Water Resources, Oregon Water Science Center

Comparison of water year 2021 streamflow to historical data at selected sites in the Snake River Basin, Wyoming

The headwaters of the Snake River are in the mountains of northwestern Wyoming on lands primarily administered by the National Park Service and the Bridger-Teton National Forest. Streamflow from the Snake River Basin has been measured at some sites for more than 100 years. Water from this drainage basin is used for recreational, agricultural, and municipal uses and power generation. Because of the
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Water Resources, Wyoming-Montana Water Science Center
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Science

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View of Dos Bocas reservoir, Utuado, PR

Puerto Rico Hazards: Water Resources | Los peligros de Puerto Rico: Recursos de agua

The USGS monitors and studies water resources to deliver a wide range of data including streamflow conditions, groundwater information, lake and reservoir elevation, water quality, water use, and water availability, which can be accessed through the USGS National Water Dashboard. As of 2022, the USGS real-time water data network is comprised of 109 streamflow observation stations, 20 groundwater...
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Natural Hazards, Water Resources
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Puerto Rico Hazards: Water Resources | Los peligros de Puerto Rico: Recursos de agua

The USGS monitors and studies water resources to deliver a wide range of data including streamflow conditions, groundwater information, lake and reservoir elevation, water quality, water use, and water availability, which can be accessed through the USGS National Water Dashboard. As of 2022, the USGS real-time water data network is comprised of 109 streamflow observation stations, 20 groundwater...
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Lake Koocanusa

Describing the Water Quality of Lake Koocanusa (Koocanusa Reservoir)

Lead Researchers: Travis Schmidt and Chris Mebane Project Manager: Melissa Schaar
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Water Resources, Wyoming-Montana Water Science Center
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Describing the Water Quality of Lake Koocanusa (Koocanusa Reservoir)

Lead Researchers: Travis Schmidt and Chris Mebane Project Manager: Melissa Schaar
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Image Collage of Landsat, pollinator, and volcanologist

Next Generation Stream Gaging

USGS scientists and partners have developed and deployed a low-cost, low-power stream gage system that could meet California’s next generation water needs. The system is now in experimental deployment in Sonoma County, addressing post-wildfire runoff threats and is being developed for the Upper Feather River watershed in northern California - a primary source of the state's water supply. This...
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Water Resources, California Water Science Center, National Innovation Center
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Next Generation Stream Gaging

USGS scientists and partners have developed and deployed a low-cost, low-power stream gage system that could meet California’s next generation water needs. The system is now in experimental deployment in Sonoma County, addressing post-wildfire runoff threats and is being developed for the Upper Feather River watershed in northern California - a primary source of the state's water supply. This...
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