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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

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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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Pop Quiz on Hurricanes!

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 Six Ways the USGS Celebrates Earth Day Everyday

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Media Alert: Public Invitation: Remembering the 1972 Flood, Planning for the Future of Water Resources

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Publications

Assessment of well yield, dominant fractures, and groundwater recharge in Wake County, North Carolina

A cooperative study led by the U.S. Geological Survey and Wake County Environmental Services was initiated to characterize the fractured-rock aquifer system and assess the sustainability of groundwater resources in and around Wake County. This report contributes to the development of a comprehensive groundwater budget for the study area, thereby helping to enable resource managers to make sound an
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Water Resources, South Atlantic Water Science Center (SAWSC)

The applicability of time-integrated unit stream power for estimating bridge pier scour using noncontact methods in a gravel-bed river

In near-field remote sensing, noncontact methods (radars) that measure stage and surface water velocity have the potential to supplement traditional bridge scour monitoring tools because they are safer to access and are less likely to be damaged compared with in-stream sensors. The objective of this study was to evaluate the use of radars for monitoring the hydraulic conditions that contribute to
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Water Resources, Arizona Water Science Center, Colorado Water Science Center

Integrated hydrologic model development and postprocessing for GSFLOW using pyGSFLOW

pyGSFLOW is a python package designed to create new GSFLOW integrated hydrologic models, read existing models, edit model input data, run GSFLOW models, process output, and visualize model data.
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Water Resources, California Water Science Center
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Science

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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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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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Architectural rendering of building front entrance.

Hydrologic Instrumentation Facility (HIF) Construction

The U.S. Geological Survey, in partnership with the University of Alabama, is constructing a new Hydrologic Instrumentation Facility, a science and engineering facility that will support our water observing networks and research.
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Water Resources, Hydrologic Instrumentation Facility (HIF)
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Hydrologic Instrumentation Facility (HIF) Construction

The U.S. Geological Survey, in partnership with the University of Alabama, is constructing a new Hydrologic Instrumentation Facility, a science and engineering facility that will support our water observing networks and research.
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Example visualization of MODFLOW output.

MODFLOW and Related Programs

MODFLOW is the USGS's modular hydrologic model. MODFLOW is considered an international standard for simulating and predicting groundwater conditions and groundwater/surface-water interactions. MODFLOW 6 is presently the core MODFLOW version distributed by the USGS. The previous core version, MODFLOW-2005, is actively maintained and supported as well.
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Water Resources
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MODFLOW and Related Programs

MODFLOW is the USGS's modular hydrologic model. MODFLOW is considered an international standard for simulating and predicting groundwater conditions and groundwater/surface-water interactions. MODFLOW 6 is presently the core MODFLOW version distributed by the USGS. The previous core version, MODFLOW-2005, is actively maintained and supported as well.
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