Idaho water officials projected a 75,300 acre-foot shortfall for Twin Falls Canal Co., up 19.5% from April due to a dry spring and early snowmelt. Under Idaho’s conjunctive water management system, junior groundwater users must prove by July 25 they can mitigate their share or face curtailment. Users participating in an approved mitigation plan will avoid curtailment. The updated methodology, revised in 2023, requires that water owed to senior users be delivered the same year, prompting an earlier curtailment deadline ahead of the September 30 season close.