
Arizona's Republican lawmakers are dialing in on concerns about the future of the state's water supply, specifically pressing for details on groundwater reserves in rural parts of the state. In a move reflecting a growing need for transparency and actionable data, Arizona House Representative Gail Griffin, along with State Senator Tim Dunn and former Senator Sine Kerr, dispatched a letter to the Arizona Department of Water Resources (ADWR) demanding a deeper dive into the state's groundwater figures. The letter, dated December 23, 2024, requests vital statistics such as average and maximum depths of basins, total groundwater volume, and the number of index wells used to gauge these measurements. On January 7, 2025, ADWR responded with preliminary data, including the startling depth of certain basins like Willcox and Gila Bend at 4,800 feet, but stopped short of offering a complete portrait of groundwater resources. The detailed request from the legislators underscores a bipartisan agreement on the necessity for this information.
Acknowledging that knowledge is the cornerstone of effective policy, Griffin believes in the vital need to quantify the state's "water bank account." Despite possessing some preliminary insights, the intricacies of the groundwater basins make the situation more complex, Griffin indicated in a special meeting early this year, raising questions about uneven basin depths and variable rates of water decline. Even as the legislation, HB2271 (supply and demand; assessment; groundwater), seeks to pad out the ADWR's five-year assessments with more comprehensive details, it's clear that Arizona's water security is a puzzle with pieces still missing. Against the backdrop of these discussions, the bill successfully navigated the House Natural Resources, Energy & Water Committee last week with clear party lines marking the vote, and it's now paddling its way through legislative currents towards the Senate.
The momentum behind HB2271—and the call for it—is mirrored by attitudes on the ground among local leaders. The legislation has received nods from figures like Pinal County Supervisor Stephen Miller and a warm reception from former Democrat lawmaker Tom Prezelski. The push for comprehensive water data stems from a shared desire to plan and protect Arizona's future, a sentiment that crosses the political divide, as affirmed by Representative Griffin's noting of unified concern across parties.
"Just because you drill a well does not guarantee that there will be one hundred years’ worth of water," Griffin cautioned, reflecting the sober recognition that water security extends beyond the mere presence of wells and probes into the finite nature of the resource beneath Arizona's soil. With precise numbers still under wraps and the total volume of groundwater yet to be disclosed, the journey toward understanding Arizona's true water wealth continues—a journey Representative Griffin and her colleagues are committed to clarifying for the sake of all Arizonans. With HB2271's progression to the Senate, Griffin is optimistic that if given the time and resources, the Department will develop a more transparent and constructive discourse around the state's water issues.









