The Central Arizona Groundwater Replenishment District (CAGRD) was created to enable groundwater-reliant urban growth in areas that lacked access to renewable supplies. This critical analysis examines how CAGRD has shaped urban growth and water policy over the past 25 years, outlining reforms to strengthen the state's water future amidst CAGRD's long-term sustainability challenges.
"Assigned water" -- that is, water banking in Lake Mead -- helps keep up reservoir levels, but it also involves trade-offs. This report explores assigned water and whether it undermines the goal of reducing total Colorado River water use over the long term.
The Colorado River Basin is experiencing diminished flows in its rivers and streams. This story map explains how satellite data can measure changes in total water storage, a new and efficient means of measuring groundwater changes.
This interactive map shows how groundwater levels have changed in Arizona's 51 groundwater basins over 1-year, 10-year and 20-year periods.
For over three decades, rigorous groundwater management combined with regulations requiring renewable water supplies for growth have helped ensure water resilience for Greater Phoenix. As the region confronts new water supply challenges, continuing groundwater protection may require changes to the rules for managing groundwater in the Phoenix Active Management Area.
This primer discusses the impacts of Colorado River shortages on tap water supplies in Central Arizona to assist stakeholders in assessing measures to adapt to those shortages.
Learn how to use the interactive map of groundwater level changes throughout Arizona's 51 basins. This text is supposed to go within the Resource heading area.
Learn how to use the interactive map of groundwater level changes throughout Arizona's 51 basins.
Arizona's stream adjudications are complex legal proceedings to determine the rights to use water from the Gila and Little Colorado Rivers and all of their tributary rivers and streams. This report explores what types legislation related to the adjudications will survive constitutional scrutiny.
Within Arizona's Active Management Areas (areas in which groundwater use is highly regulated) there is a cap and trade system for groundwater, and cities, Tribes and other entities can accrue and exchange long term storage credits for water that is stored in underground aquifers. This report explains how these credits are accrued and accounted for and how they have become an integral tool for water providers. It includes a dashboard of long term storage credit accounts in Arizona.