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Arizona Water Science Center

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.

News

USGS Science Campus Open House: Hours of sciences, sunshine, and ice cream

USGS Science Campus Open House: Hours of sciences, sunshine, and ice cream

Join us on Sept 29 for the USGS Open House in Flagstaff!

Join us on Sept 29 for the USGS Open House in Flagstaff!

Art Illuminates the Grand Canyon: Exploring the Environmental Puzzle

Art Illuminates the Grand Canyon: Exploring the Environmental Puzzle

Publications

Groundwater, surface-water, and water-chemistry data, Black Mesa area, northeastern Arizona—2019–2021

The Navajo (N) aquifer is an extensive aquifer and the primary source of groundwater in the 5,400-square-mile Black Mesa area in northeastern Arizona. Water availability is an important issue in the Black Mesa area because of the arid climate, past industrial water use, and continued water requirements for municipal use by a growing population. Precipitation in the area typically ranges from less
Authors
Jon P. Mason

Monitoring aquifer-storage change from artificial recharge with repeat microgravity along Santa Cruz River, Tucson, Arizona, 2019–22

The City of Tucson water utility, Tucson Water, began releasing treated effluent into the Santa Cruz River channel near downtown Tucson in 2019. This recharge project—the Heritage Project—is intended to create a reach of consistent flow in the channel and recharge water to the aquifer. Tracking the dispersal of recharged water is important for management decisions because groundwater movement depe
Authors
Libby M. Wildermuth, Jacob L. Conrad

Water resources inventory of the Las Cienegas National Conservation Area, southeastern Arizona

The Las Cienegas National Conservation Area was established by the Las Cienegas National Conservation Area Establishment Act of 1999 (Public Law 106–538) and is managed by the Bureau of Land Management. Located in southeastern Arizona, the conservation area contains more than 45,000 acres of rolling grassland, wetlands, and woodlands surrounded by isolated mountain ranges that are part of the Madr
Authors
Jon P. Mason

Science

Estimation of Dissolved-Solids Concentrations Using Continuous Water-Quality Monitoring and Regression Models at Four Sites in the Yuma Area, Arizona and California

The Colorado River is controlled by an extensive system of dams and canals diverting much of the water in the United States for agricultural and municipal uses. The Water Treaty of 1944 guarantees that 1.5 million acre-feet of Colorado River water is delivered to Mexico from the United States annually. Additionally, the water delivered must meet water-quality criteria as defined in Minute 242. The...
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Estimation of Dissolved-Solids Concentrations Using Continuous Water-Quality Monitoring and Regression Models at Four Sites in the Yuma Area, Arizona and California

The Colorado River is controlled by an extensive system of dams and canals diverting much of the water in the United States for agricultural and municipal uses. The Water Treaty of 1944 guarantees that 1.5 million acre-feet of Colorado River water is delivered to Mexico from the United States annually. Additionally, the water delivered must meet water-quality criteria as defined in Minute 242. The...
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Southwest Gravity Program

The Southwest Gravity Program provides high-precision time-lapse gravity (repeat microgravity) data for hydrologic studies in the southwestern US. Recent projects include monitoring recharge underneath ephemeral-stream channels, monitoring aquifer-storage change in unconfined and compressible aquifers, measuring storage change at surface-spreading and injection-well artificial-recharge facilities...
link

Southwest Gravity Program

The Southwest Gravity Program provides high-precision time-lapse gravity (repeat microgravity) data for hydrologic studies in the southwestern US. Recent projects include monitoring recharge underneath ephemeral-stream channels, monitoring aquifer-storage change in unconfined and compressible aquifers, measuring storage change at surface-spreading and injection-well artificial-recharge facilities...
Learn More

Tucson Extensometer Network

The U.S. Geological Survey Arizona Water Science Center in cooperation with Tucson Water has monitored water-level and aquifer compaction at several wells in Avra Valley and Tucson Basin since about 1980. The purpose of the data collection is to document compaction of the aquifer system in response to stresses induced by water-level change, provide control for satellite-based observations of land...
link

Tucson Extensometer Network

The U.S. Geological Survey Arizona Water Science Center in cooperation with Tucson Water has monitored water-level and aquifer compaction at several wells in Avra Valley and Tucson Basin since about 1980. The purpose of the data collection is to document compaction of the aquifer system in response to stresses induced by water-level change, provide control for satellite-based observations of land...
Learn More
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