Arizona's groundwater safeguard, requiring a 100-year assured water supply for subdivisions, is faltering as shrinking Colorado River allocations strain the replenishment system developers rely on, highlighting an urgent need for reform.

This analysis reveals Arizona's unsustainable groundwater use, jeopardizing communities, ecosystems, and future growth, and emphasizes that bold action and honest reckoning are needed to change course.

Examining the Colorado River shortage and what it means for water conservation, residential water users, groundwater pumping, utility costs, urban growth, new water supplies, and water rights.

This analysis provides context on Arizona's 1995 surface water law amendments and their lasting impact on water adjudication, following years of legal battles that culminated in a Supreme Court ruling deeming most unconstitutional, as lawmakers revisited these rights in 2020.

This report examines how Arizona's 100-year assured water supply requirement, particularly through the Central Arizona Groundwater Replenishment District (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.

Growing attention on water equity is highlighting the need to address disparities and build a more inclusive water future, ensuring all communities have fair, reliable access to safe, clean water.

Our new report introduces "Floating Pools," a bold concept for reserved water storage on the Colorado River designed to reduce conflict and avoid litigation between Upper and Lower Basin states, laying the foundation for a durable post-2026 management framework.

Arizona's new groundwater restrictions, designed to safeguard water for the future, are impacting housing costs and availability in Greater Phoenix amidst an existing affordability crisis. This explainer examines solutions for local governments to find a balance.

We examine the Northeastern Arizona Indian Water Rights Settlement Agreement, a historic resolution that aims to end over six decades of legal battles for water rights between the Navajo Nation, Hopi Tribe, and other stakeholders, pending Congressional approval.

From power and semiconductors to turf, beverages, and data centers, our new report offers a data‑driven look at how major industries use water in Central Arizona—and what those patterns mean for long‑term sustainability and planning.