Arizona Water Science Center

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Welcome to the U.S. Geological Survey Arizona Water Science Center.  Our mission is to collect and interpret high quality, impartial scientific information to provide resource managers and the public with the knowledge required to understand and manage the critical water resources of Arizona and the Southwest.

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National Water Dashboard

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National Water Dashboard - Arizona

Explore real-time streamflow, groundwater, and water-quality conditions in Arizona and across the nation.

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Featured Science

Featured Science

GSadjust is the first comprehensive, publicly-available graphical interface for performing drift-correction and network adjustment for combined relative- and absolute-gravity surveys.

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News

Date published: May 4, 2020

USGS Arizona Water Science Center publishes a series of reports that describe the groundwater resources of the Hualapai Plateau and Truxton Basin

The USGS Arizona Water Science Center has published three reports documenting the findings of a comprehensive groundwater study conducted from 2015 through 2018 on the Hualapai Indian Reservation and adjacent areas from 2015 through 2018 in cooperation with the Bureau of Reclamation. 

Date published: October 2, 2018

USGS Prepares to Measure Flooding Across Arizona

Reporters: Do you want to accompany a USGS field crew as they measure flooding? Please contact Jennifer LaVista or Jim Leenhouts

Publications

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Year Published: 2021

Documentation of methods and inventory of irrigation information collected for the 2015 U.S. Geological Survey estimated use of water in the United States

The U.S. Geological Survey (USGS) National Water-Use Science Project strives to report water-use estimates using the best available information for the period of the estimates. The information available on water used for irrigation activities varies from State to State and in some areas from county to county within a State, which results in many...

Painter, Jaime A.; Brandt, Justin T.; Caldwell, Rodney R.; Haynes, Jonathan V.; Read, Amy L.
Painter, J.A., Brandt, J.T., Caldwell, R.R., Haynes, J.V., and Read, A.L., 2021, Documentation of methods and inventory of irrigation information collected for the 2015 U.S. Geological Survey estimated use of water in the United States: U.S. Geological Survey Scientific Investigations Report 2020–5139, 39 p., https://doi.org/10.3133/sir20205139.

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Year Published: 2020

Recent and projected precipitation and temperature changes in the Grand Canyon area with implications for groundwater resources

Groundwater is a critical resource in the Grand Canyon region, supplying nearly all water needs for residents and millions of visitors. Additionally, groundwater discharging at hundreds of spring locations in and near Grand Canyon supports important ecosystems in this mostly arid environment. The security of groundwater supplies is of critical...

Tillman, Fred; Gangopadhyay, Subhrendu; Pruitt, Tom
Tillman, F.D, Gangopadhyay, S., and Pruitt, T., 2020, Recent and projected precipitation and temperature changes in the Grand Canyon area with implications for groundwater resources. Scientific Reports, 10, 19740.

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Year Published: 2020

Trends in recent historical and projected climate data for the Colorado River Basin and potential effects on groundwater availability

Understanding recent historical and projected trends in precipitation and temperature in the Colorado River Basin, and estimating what the projected changes in these climate parameters may mean for groundwater resources in the region, is important for water managers and policymakers to sustainably manage water resources in the basin. Historical (...

Tillman, Fred D.; Gangopadhyay, Subhrendu; Pruitt, Tom
Tillman, F.D., Gangopadhyay, S., and Pruitt, T., 2020, Trends in recent historical and projected climate data for the Colorado River Basin and potential effects on groundwater availability: U.S. Geological Survey Scientific Investigations Report 2020–5107, 24 p., https://doi.org/10.3133/sir20205107.