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.

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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.

USGS Water Data for the Nation

Water Quality Portal

National Groundwater Monitoring Network Data Portal

WaterWatch

Groundwater Watch

MODFLOW

StreamStats

More data and tools

News

Date published: May 15, 2019

USGS Kicks Off Innovative Project to Study Harmful Algal Blooms in New York

Monitoring Effort Supports State’s Initiative to Combat Potentially Toxic Blooms

Date published: May 15, 2019

New release: User-friendly Point-Source Load Estimation Tool (PSLoadEsT)

Do you need consistent and reliable data for nutrient concentrations released by point-source dischargers? The USGS has developed a new approach for developing typical pollutant concentrations (TPCs) in the absence of measured total nitrogen (TN) or total phosphorus (TP) concentration data and a new tool, the Point-Source Load Estimation Tool (...

Date published: May 13, 2019

USGS News Release: Groundwater Levels are Rebounding in Albuquerque

Groundwater levels in the Albuquerque area are on the rise according to newly published research from the U.S. Geological Survey.

Publications

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Year Published: 2019

Assessing Water Quality From Highway Runoff at Selected Sites in North Carolina with the Stochastic Empirical Loading and Dilution Model (SELDM)

In 2015, the U.S. Geological Survey (USGS) entered into a cooperative agreement with the North Carolina Department of Transportation (NCDOT) to develop a North Carolina-enhanced variation of the national Stochastic Empirical Loading and Dilution Model (SELDM) with available North Carolina-specific streamflow and water-quality data and to...

Weaver, J. Curtis; Granato, Gregory E.; Fitzgerald, Sharon A.
Weaver, J.C., Granato, G.E., and Fitzgerald, S.A., 2019, Assessing water quality from highway runoff at selected sites in North Carolina with the Stochastic Empirical Loading and Dilution Model (SELDM): U.S. Geological Survey Scientific Investigations Report 2019–5031, 99 p., https://doi.org/10.3133/sir20195031.

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Year Published: 2019

Data management plan for the U.S. Geological Survey Washington Water Science Center

The primary mission of the U.S. Geological Survey (USGS) Water Mission Area is to collect and disseminate reliable, impartial, and timely information needed to understand the water resources of the Nation, including data on streamflow, groundwater, water quality, water use, and availability. Management of data throughout the entire data lifecycle...

Conn, Kathleen E.; Mastin, Mark C.; Long, Andrew J.; Dinicola, Richard S.; Barton, Cynthia
Conn, K.E., Mastin, M.C., Long, A.J., Dinicola, R.S., and Barton, C., 2019, Data management plan for the U.S. Geological Survey Washington Water Science Center : U.S. Geological Survey Open-File Report 2019-1049, 23 p., https://doi.org/10.3133/ofr20191049.

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Year Published: 2019

Resilience of benthic macroinvertebrates to extreme floods in a Catskill Mountain river, New York, USA: Implications for water quality monitoring and assessment

Changes in the timing, magnitude, frequency, and duration of extreme hydrologic events are becoming apparent and could disrupt species assemblages and stream ecosystems across the Northeastern United States. Between August 28 and 29 of 2011, an average of 31 cm of rain from Tropical Storm Irene fell across Eastern New York State in less than 24 h...

Smith, Alexander J.; Baldigo, Barry P.; Duffy, Brian T; George, Scott D.; Dresser, Brian