By Jonathan Eberle |

Governor Katie Hobbs has vetoed Senate Bill 1300, a Republican-backed measure that would have allowed residents of southeastern Arizona’s San Simon Valley sub-basin to vote on whether to establish an Irrigation Non-expansion Area (INA) — a designation intended to temporarily halt the expansion of agricultural groundwater use.

Supporters of the bill, including Representative Gail Griffin (R-LD19), argued the measure would have empowered local voters in Graham and Cochise counties to take the lead on managing their own groundwater resources in the face of ongoing depletion. The bill passed the Republican-controlled legislature earlier this session.

SB 1300 would have permitted county supervisors to place an INA designation question on the November 2026 ballot. Once that vote was scheduled, a temporary moratorium on new irrigation would have taken effect to prevent last-minute expansion and groundwater pumping ahead of the election. If voters approved the INA, the moratorium would have become permanent.

Griffin called the veto “a missed opportunity,” saying the temporary pause alone would have been a benefit to the aquifer. “Whether voted up or down, either outcome would have resulted in at least a six-month pause on new agricultural expansion,” she said in a statement.

Republican lawmakers have repeatedly pushed back on the AMA designation, arguing that it imposes regulations more appropriate for urban areas like Phoenix and Tucson and fails to account for the economic realities of rural Arizona.

Griffin and other Republicans argue these proposals disregard the will of local communities. “What the Governor wants in rural Arizona is to adopt regulations that are more stringent than urban areas,” Griffin said. “These extreme expectations are simply not achievable for rural Arizona.”

While the Governor’s office has framed her groundwater proposals as necessary responses to decades of overuse and aquifer decline, Republican legislators insist they are advancing more flexible, community-driven solutions. These include efforts to promote stormwater recharge and local decision-making to stabilize groundwater levels without heavy-handed mandates.

No immediate alternative to SB 1300 has been announced, but Republican leaders say they plan to continue engaging with stakeholders on rural water policy. “We stand by our rural communities and the principles of local control, property rights, and strong local economies,” Griffin said.

Water experts and advocacy groups are closely watching the legislative standoff as Arizona grapples with worsening drought conditions, declining aquifers, and in and intensifying debate over how best to balance agriculture, conservation, and rural livelihoods.

Jonathan Eberle is a reporter for AZ Free News. You can send him news tips using this link.