Fact sheets

Research and policy briefs

Map of Arizona groundwater basins.

Research brief: Declining freshwater availability in the Colorado River Basin threatens sustainability of its critical groundwater supplies

The Colorado River Basin, a crucial water source for several U.S. states and Mexico, is facing a severe and ongoing decrease in freshwater – both surface and groundwater. This decline is mainly due to the changing…

A desert city with water from above.

More Elusive Than Ever: Arizona’s Assured Water Supply Protections Under Colorado River Shortages and Groundwater Scarcity

In the state's most urban areas, Arizona's Groundwater Management Act prohibits the sale of subdivision lots that lack a 100-year assured water supply. Allowing groundwater to qualify as an assured supply conflicts with…

Arizona agriculture water usage

Exploratory Scenario Planning for Water Resilient Agriculture

In September 2023, the Babbitt Center, with our partners at the Arizona Water Innovation Initiative at ASU and Lincoln Institute’s Consortium for Scenario Planning, brought together farmers, ranchers, residents,…

canal in arizona

Groundwater Protection in the Valley of the Sun

Sustainable water management is essential in the Valley of the Sun, underpinning public health, economic vitality and quality of life in our desert cities. Underneath the Valley sits an enormous aquifer containing enough…

rural groundwater usage

The Myth of Safe-Yield

As Central Arizona Project water becomes less available, central Arizona will be forced to rely more and more on groundwater, increasing the urgency to better manage it as a savings account for a drier future. The goal of…

enough water

The Elusive Concept of an Assured Water Supply

For nearly 40 years in its most urban areas, Arizona has prohibited the sale of subdivision lots that lack a 100- year assured water supply. But in 1993, the Legislature changed course and created a new path to show an…

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