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Water Resources Mission Area

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.

News

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New study demonstrates how climate and irrigation influence salinity of waters in the Upper Colorado River Basin

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Pesticides are likely impacting invertebrate life essential to our nation’s streams

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We're Hiring: Hydrologic Instrumentation Research and Operations Chief

Publications

Evaluating the reliability of environmental concentration data to characterize exposure in environmental risk assessments

Environmental risk assessments often rely on measured concentrations in environmental matrices to characterize exposure of the population of interest—typically, humans, aquatic biota, or other wildlife. Yet, there is limited guidance available on how to report and evaluate exposure datasets for reliability and relevance, despite their importance to regulatory decision-making. This paper is the sec
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Michelle Hladik, Arjen Markus, Dennis R. Helsel, Lisa H. Nowell, Stefano Polesello, Heinz Rudel, Drew Szabo, Iain Wilson

Methods of analysis—Determination of pesticides in filtered water and suspended sediment using liquid chromatography- and gas chromatography-tandem mass spectrometry

The widespread application of pesticides in agricultural and urban areas leads to their presence in surface waters. Presence of these biologically active chemicals in environmental waters potentially has adverse effects on nontarget organisms. To better understand the environmental fate of these contaminants, a robust method to capture chemicals with wide-ranging physicochemical properties has bee
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Michael S. Gross, Corey J. Sanders, Matthew D. De Parsia, Michelle L. Hladik

Streamflow permanence in Mount Rainier National Park, Washington

IntroductionStreams that flow throughout summer (“permanent” streams) provide critical habitat for aquatic species and serve as an important water supply. Streams that go dry seasonally or only flow after rainfall or snowmelt are a natural feature of mountain systems, including Mount Rainier National Park. However, in years with substantially less than normal snowfall, like 2015, more streams go d
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Kristin Jaeger

Science

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6PPD-Quinone

6PPD-Q is a compound used to make tires more durable and is also linked to toxicity for Coho Salmon and other aquatic species.
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National Modeled Water Atlas

The National Modeled Water Atlas will deliver routinely updated water availability information in the United States.
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National Modeled Water Atlas

The National Modeled Water Atlas will deliver routinely updated water availability information in the United States.
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WUDR Cooperative Funding Awards, FY23

The USGS Water-Use Data and Research (WUDR) program is pleased to announce the recipient of the FY23 cooperative awards. Awards were made to agencies in 3 States, for a total of about $270,000 in funding .
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WUDR Cooperative Funding Awards, FY23

The USGS Water-Use Data and Research (WUDR) program is pleased to announce the recipient of the FY23 cooperative awards. Awards were made to agencies in 3 States, for a total of about $270,000 in funding .
Learn More