
AMWUA Blog
Lawsuits only further complicate Arizona’s water challenges
There are now two lawsuits against the Arizona Department of Water Resources (ADWR). The first challenges ADWR’s efforts and authority to uphold the 100-year Assured Water Supply Program, the foundation of Arizona’s thriving economy. The second would prevent homebuilding from restarting, where it has been halted due to groundwater concerns. In the end, both lawsuits pose threats to Arizona’s water...
Working together, we are One for WaterTM
AMWUA’s membership consists of ten large municipalities in Maricopa County, Arizona. Collectively, the population of the AMWUA municipalities is 3.7 million people—more than 50 percent of the state’s population.

Conservation & Efficiency
Living in a desert, Arizonans recognize that water is a limited and precious resource. We know we need to conserve and protect the water we have, stretching and preserving it for the future. We have embraced a culture of conservation, and it’s paying off. That ongoing commitment will help us weather the impacts of climate change, extended drought, and shortage.

Drought & Shortage
Extended drought and a shortage on the Colorado River in 2022 are cause for concern, but they are not unexpected. Arizona has been visionary in water management planning and policy. The AMWUA cities have prepared and invested to ensure reliable, sustainable supplies for their communities. Continued innovative water management strategies, investment, and forward-thinking policy will enable us to meet the very real challenges ahead.
Where we stand on the issues
Smart water policy and careful planning, investment, and management have enabled AMWUA’s members to build robust, reliable water supplies that support our communities and economy. It is imperative that we continue to address the issues in front of us to ensure the future viability of those supplies. Learn more about some of the issues we are working on:
AMWUA Blog

Mar 18 2025
Lawsuits only further complicate Arizona’s water challenges
There are now two lawsuits against the Arizona Department of Water Resources (ADWR). The first challenges ADWR’s efforts and authority to uphold the 100-year Assured Water Supply Program, the foundation of Arizona’s thriving economy. The second would prevent homebuilding from restarting, where it has been halted due to groundwater concerns. In the end, both lawsuits pose threats to Arizona’s water...

Mar 11 2025
Groundwater is a finite resource that must be used wisely
This year commemorates the 45th anniversary of the landmark 1980 Groundwater Management Act, a crucial piece of legislation that established guidelines for sustainable groundwater use in Arizona. In conjunction with this milestone, we are also observing National Groundwater Awareness Week, an annual campaign to educate the public about the significance of groundwater resources. These two events of...

Mar 04 2025
Create an outdoor plan for spring with free conservation classes and resources
After an unseasonably warm winter, now is the ideal time to do some outdoor planning before the early arrival of summer. The AMWUA cities offer a wide variety of resources, including free classes and workshops, to help you create and maintain a beautiful, drought-resistant yard....
AMWUA (pronounced "am-wa" as in, "I am" and "water") is the Arizona Municipal Water Users Association, a non-profit association of ten municipalities in the Phoenix metro area, advocating responsible water stewardship that supports economic prosperity and safeguards Arizona's water supplies for future generations.
"Water is essential for life
It supplies food, generates energy, and creates jobs. The wellbeing of our communities and economies depends on it. In a desert, we are acutely aware that we must continue to plan, invest, and develop forward-thinking policy today to ensure safe, reliable, and sustainable water supplies for the future.

OUR MEMBERS
AMWUA's membership consists of ten large municipalities in Maricopa County, Arizona. Collectively, the population of the AMWUA municipalities is 3.7 million people—more than 50 percent of the state's population.