Mission Areas

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

USGS Water Data for the Nation

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

Message from the Associate Director for Water

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


Popular Water Data and Tools

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

USGS Water Data for the Nation

National Water Dashboard

Water Quality Portal

National Groundwater Monitoring Network Data Portal

Groundwater Watch



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Date published: September 3, 2021

Media Alert: New Flood Warning Gage in Pack Creek near Moab Utah

A new rapid deployment U.S. Geological Survey flood warning gage has been installed in Pack Creek, 9 miles southeast of Moab, Utah, below the June 2021 wildfire burn area.

Date published: September 1, 2021

USGS Responding to High Water Caused By Ida Across Multiple States

To learn more about USGS’s role in providing science to decision-makers before, during and after Hurricane Ida, visit www.usgs.gov/ida.

For information on what the Department of Homeland Security and FEMA are doing, visit: https://www.fema.gov/hurricane-ida.

For more on what the U.S. Government is Doing, visit: https://www.usa.gov/hurricane-ida or https://gobierno.usa.gov/huracan-ida for Spanish.


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Year Published: 2022

Post-fire temporal trends in soil-physical and -hydraulic properties and simulated runoff generation: Insights from different burn severities in the 2013 Black Forest Fire, CO, USA

Burn severity influences on post-fire recovery of soil-hydraulic properties controlling runoff generation are poorly understood despite the importance for parameterizing infiltration models. We measured soil-hydraulic properties of field-saturated hydraulic conductivity (Kfs), sorptivity (S), and wetting front potential (ψf) for four years after...

Ebel, Brian A.; Moody, John A.; Martin, Deborah A.
Attribution: Water Resources

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Year Published: 2022

Evaluation of ELISA for the analysis of imidacloprid in biological matrices: Cross-reactivities, matrix interferences, and comparison to LC-MS/MS

Imidacloprid is among the most used pesticides worldwide and there are toxicity concerns for nontarget organisms. Accurate and sensitive methods are necessary to quantitate imidacloprid concentrations in biological matrices to better understand their fate and effects. Here we evaluated an enzyme-linked immunosorbent assay (ELISA) kit for...

Gross, Michael S.; Woodward, Emily; Hladik, Michelle

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Year Published: 2021

Streamflow—Water year 2020

The maps and graphs in this summary describe national streamflow conditions for water year 2020 (October 1, 2019, to September 30, 2020) in the context of streamflow ranks relative to the 91-year period of water years 1930–2020. Annual runoff in the Nation’s rivers and streams during water year 2020 (11.10 inches) was higher than the long-term (...

Jian, Xiaodong; Wolock, David M.; Lins, Harry F.; Henderson, Ronald J.; Brady, Steven J.
Jian, X., Wolock, D.M., Lins, H.F., Henderson, R.J., and Brady, S.J., 2021, Streamflow—Water year 2020: U.S. Geological Survey Fact Sheet 2021–3046, 6 p., https://doi.org/10.3133/fs20213046.