Arizona Water Science Center

Home

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.

Contact the AZWSC

Water Dashboard

Water Dashboard

View current water conditions throughout Arizona.

View current water conditions

Featured Science

Featured Science

Changes in the amount of water stored in underground aquifers cause small changes in Earth’s gravitational field. Scientists measure these small changes to map changes in groundwater storage and to improve models that simulate groundwater flow.

Learn More

News

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

Date published: September 27, 2017

Levels of Possible Human Carcinogen Declining in Most Wells in Tucson International Airport Superfund Site

Levels of a potential human carcinogen, 1,4-dioxane, have mostly declined in wells in the commercial and residential areas of the Tucson International Airport Area Superfund Site during 2002-2017, according to a new map published by the U.S. Geological Survey.

Date published: January 24, 2017

Uranium in Spring Water North of Grand Canyon Likely Not Related to Nearby Mining Activity

Uranium levels in Pigeon Spring, just north of the Grand Canyon, are likely due to a natural source of uranium and not related to the nearby former Pigeon Mine, according to a recent study by the U.S. Geological Survey.

Publications

Publication Thumbnail
Year Published: 2019

Reach-scale monitoring and modeling of rivers—Expanding hydraulic data collection beyond the cross section

For over 125 years, the U.S. Geological Survey streamgage network has provided important hydrologic information about rivers and streams throughout the Nation. Traditional streamgage methods provide reliable stage and streamflow data but typically only monitor stage at a single location in a river and require frequent calibration streamflow...

Forbes, Brandon T.; Bunch, Claire E.; DeBenedetto, Geoffrey; Shaw, Corey J.; Gungle, Bruce
Forbes, B.T., Bunch, C.E., DeBenedetto, G., Shaw, C.J., and Gungle, B., 2019, Reach-scale monitoring and modeling of rivers—Expanding hydraulic data collection beyond the cross section: U.S. Geological Survey Fact Sheet 2019–3073, 6p., https://doi.org/10.3133/fs20193073.

Publication Thumbnail
Year Published: 2019

Seasonality of climatic drivers of flood variability in the conterminous United States

Flood variability due to changes in climate is a major economic and social concern. Climate drivers can affect the amount and distribution of flood-generating precipitation through seasonal shifts in storm tracks. An understanding of how the drivers may change in the future is critical for identifying the regions where the magnitude of floods may...

Dickinson, Jesse E.; Harden, Tessa M.; McCabe, Gregory

Publication Thumbnail
Year Published: 2019

Escherichia coli in the Santa Cruz River in Tumacácori National Historical Park, Arizona

At Tumacácori National Historical Park in southern Arizona, resource managers are concerned about microbial pathogens in the Santa Cruz River that could pose a serious health risk to employees and visitors. The U.S. Geological Survey recently completed a comprehensive 3-year study of water quality in the Santa Cruz River watershed that...

Paretti, Nicholas V.
Paretti, N.V., 2019, Escherichia coli in the Santa Cruz River in Tumacácori National Historical Park, Arizona: U.S. Geological Survey Fact Sheet 2019-3065, 6 p., https://doi.org/10.3133/fs20193065.