The Interior Department's short-term operating framework for the Colorado River spares Colorado from mandatory water cuts, along with the rest of the Upper Basin [1]. Utah, Wyoming and New Mexico are in the same position. Mandatory reductions under the plan fall on the Lower Basin, Arizona, California and Nevada, which face collective cuts of up to 3 million acre-feet through 2036, subject to hydrology [1].
Our reporting on the Final Environmental Impact Statement earlier today established that the 3 million acre-foot figure is a ceiling for the three Lower Basin states together, with no per-state allocation published anywhere in the release. The short-term plan supplies the basin-level answer without supplying the state-level one. Colorado is not spared because anyone negotiated its share down. Colorado is spared because the framework assigns mandatory reductions to the other basin and leaves the division inside that basin unwritten.
The consumption figures show why the two basins are not treated alike. Averaged over 2020 through 2024, the Lower Basin used 6.5 million acre-feet a year, 49 percent of the total; the Upper Basin used 3.8 million, 29 percent; Mexico drew 1.4 million, 11 percent; and evaporation took 1.4 million, another 11 percent [1]. Evaporation is as large a line on that ledger as Mexico's entire share, and it is the only line that cannot be negotiated with.
The reservoir behind the arithmetic is not comfortable. Lake Powell sits at 3,522 feet above sea level, roughly 22 percent of capacity [1]. Colorado Politics places the elevation at which Glen Canyon Dam stops generating power at 3,370 feet, 152 feet below the current surface, and reports that level could be reached as early as next year [1].
Two dates bracket the decision. The current interim guidelines expire October 1, 2026 [1]. The framework replacing them runs through 2036 and reopens every two years, with annual releases from Lake Powell bracketed between 5 and 12 million acre-feet [1].
Andrea Travnicek, the assistant secretary for water and science, said the plan "strikes a balance between flexibility and predictability for the Colorado River system that is vital to the 40 million people who rely on it" [1].
Colorado's lead negotiator does not share the enthusiasm for the flexibility half. Becky Mitchell said she has no idea what a process of renegotiating every two years would look like, and called perpetual negotiation incredibly difficult [1]. Her objection is the framework's own design read from the receiving end. A state spared in this cycle defends that position again in two years, and again after that, on a schedule that runs to 2036.
That is the work "for now" is doing in every headline about this plan. Colorado's reprieve is real and it has an expiration. The Lower Basin's 3 million acre-foot exposure is real and it is still unallocated. The two questions this morning's piece left open are open tonight: which of Arizona, California and Nevada absorbs how much, and when a Record of Decision arrives to make any of it binding.
