House Democrats raise concerns about SB 15 20 creating Basin Management Areas and limiting conservation

Sen. Vicente presented Senate Bill 15 20 on the caucus calendar, describing a plan that would let voters or the Arizona Department of Water Resources director designate the Hila Bend, Willcox and Wallopie groundwater basins as Basin Management Areas (BMAs) and, once designated, prohibit new groundwater pumping in those basins.

Members said the bill gives BMA councils — each with five members, three appointed by the governor, House speaker and Senate president and two chosen from minority-leader lists — extensive discretion to choose management goals, including options driven by economic considerations rather than hydrology. "If we don't have water, nothing else matters," Rep. Stahl Hamilton said, arguing conservation should be the priority.

The bill would require the DWR director to hold public meetings and commission economic and hydrologic studies that would inform BMA councils' plans. Vicente told members councils may select management goals from a finite menu and that a management plan could include an "all time maximum 10% conservation requirement," which could later be maintained or reduced. The bill contains no funding mechanism or incentive structure to encourage reductions in pumping beyond that cap, and it prohibits BMAs from later being converted into Active Management Areas (AMAs) or Irrigation Non-expansion Areas (INAs).

Several members who heard testimony in committee said farmers, rural residents and county officials told legislators the measure would not address local drought conditions and might make them worse. "We heard a lot of testimony that, not only would this not help manage water in rural areas, it might worsen conservation water management issues," one member said, summarizing committee testimony from farmers and residents who reported wells running dry.

Members repeatedly questioned making economic criteria central to management choices. "It sounds like in this bill they're making economics the bottom line. And let me tell you, if we don't have water, nothing else matters," Rep. Stahl Hamilton said. Other speakers warned the 10% cap on conservation could be inadequate and that the bill lacks tools such as incentives or funding to support meaningful reductions in pumping.

Supporters told members Senator Dunn intended to continue amendments and to listen to stakeholders, but critics said the current text was not a workable path forward. Several members said they voted no on related water bills because they feared the measures would favor extraction over meaningful conservation.

The discussion did not record a final vote in caucus; the bill was on the consent calendar at the time of presentation but members asked to pull it for further consideration.

The debate in caucus echoed broader committee testimony and highlighted division among legislators from urban and rural districts over how to balance economic and hydrologic goals for groundwater management.

Looking ahead, members said additional amendments and stakeholder engagement will be necessary before they could support a final proposal.