The Bureau of Reclamation is delivering Colorado River water against a 1922 paper allocation the river cannot honor.
Lake Powell stands at twenty-three percent of capacity — thirty-seven feet above the elevation at which Glen Canyon Dam’s turbines stop generating power for nearly six million households and businesses. The arithmetic gap is the policy story; the consequence is what arrives when the turbines go quiet.
Two numbers establish the size of the gap. The 1922 Compact divided the river’s annual flow between the Upper Basin and the Lower Basin at seven-point-five million acre-feet each, for a total of fifteen million acre-feet (Article III(d)). The Bureau has administered the system on that allocation for the entire twenty-first century. The actual long-term average annual natural flow at Lees Ferry is approximately fourteen-point-six million acre-feet, per the Bureau’s hydrologic record (Colorado River Basin Water Supply and Demand Study, December 2012, with subsequent technical updates). Observed flow since 2000 has averaged roughly nineteen percent below the twentieth-century average. The Compact’s total allocation has been greater than the river has actually carried for the entire twenty-first century, and the gap is widening as the climate warms. The Bureau has continued to administer the system on the 1922 allocation, against its own data, for twenty-five years. That is not an operational error. It is an accounting choice.
The federal fiscal mechanism that keeps the fiction alive is the Reclamation Fund, established by the Reclamation Act of 1902. The Fund receives receipts from federal hydropower generation at Glen Canyon Dam and other federal facilities, marketed by the Western Area Power Administration. Disbursements from the Fund finance Bureau water-delivery projects across the seventeen western states at below-cost rates set by long-term contracts dating to the early twentieth century. The contracts do not include scarcity pricing. The price Imperial Irrigation District pays for Colorado River water has been adjusted a handful of times since 1932. The Bureau’s cost-recovery rules operate on the fiction that the contracted water will be available; the contracts are written against a paper allocation the river has not carried for twenty-five years. The federal subsidy is what keeps the over-allocation economically viable for the largest users.
The 2022 Inflation Reduction Act (P.L. 117-169) provided four billion dollars for Colorado River Basin drought response, with a substantial share going to compensate irrigators for voluntary cuts. The federal government is paying farmers not to use water it has been simultaneously delivering at below-cost rates. Both flows are recorded in the federal budget. The Bureau’s preferred response, when Lake Powell drops, has been to release supplemental water from Flaming Gorge Reservoir upstream — a one-time accounting transfer from a different federal reservoir — rather than enforce the allocation arithmetic against the contracts that drive the demand.
The seven-state negotiation failure is the political consequence. California, Nevada, Arizona, New Mexico, Colorado, Utah, and Wyoming hold legal rights to the river under a series of interstate compacts, the 1944 Treaty with Mexico, and Supreme Court decrees. The states have been unable to agree on post-2026 operating rules. The Bureau has authority to impose interim guidelines and allocate shortages under the Colorado River Basin Project Act of 1968, and has signaled it may impose a plan. The Bureau has had this authority for nearly sixty years. It has used it, when it has used it at all, as a deadline-management device — set a deadline, watch the states fail to meet it, impose a plan calibrated to be least disruptive to the largest users. The Bureau’s preferred operating posture is to add federal subsidies on top of the same arithmetic that has not worked for twenty-five years.
What the Bureau’s choice actually looks like downstream begins with the ratepayer. Glen Canyon Dam’s hydroelectric output is marketed by the Western Area Power Administration under cost-based rate authority, sold first to preference customers — rural electric cooperatives, municipal utilities, federal facilities, and tribal utilities across Arizona, New Mexico, Nevada, Utah, and Colorado. When the turbines go quiet, replacement power comes from the wholesale market at prevailing prices. WAPA absorbs the difference and passes it through to the preference customers. Six million households and businesses sit on that side of the ledger; the Bureau’s arithmetic, kept intact, makes the electricity bill an inevitability the agency has not priced.
The next downstream consequence lands on Imperial Irrigation District and the larger Lower Basin users. IID is the single largest diverter of Colorado River water in the Lower Basin — three-point-one million acre-feet annually under its pre-Compact priority, the most senior in California. The district’s water has historically powered a winter-vegetable economy worth billions annually and delivered at a fraction of municipal rates. The Quantification Settlement Agreement of 2003 arranged for IID to fallow roughly three hundred thousand acre-feet for transfer to San Diego and the coastal urban agencies, paid for in part by federal funds. The IRA’s four-billion-dollar drought appropriation extended the same template — voluntary cuts, federal compensation, no contract revision. The Bureau does not have a mechanism to extend the buyouts beyond the appropriation; it has the Compact arithmetic and the contract language. The Bureau’s choice is to keep the contracts intact and let the federal Treasury make up the difference. The Bureau has the authority to allocate shortages and has had it for nearly sixty years. That choice is the one it has not made.
The third consequence lands on the tribes. The Winters doctrine of 1908 reserved water for tribal nations whose reservations predate non-Indian settlement; the 1963 Arizona v. California decree quantified the five Lower Basin tribes’ claims at roughly two-point-four million acre-feet annually. Those claims are the most senior in the Lower Basin, by priority date. They have not been delivered at the quantified level in any year on record. The Bureau’s preferred operating posture — protecting the existing allocation arithmetic — has deferred the senior tribal claim through every shortage cycle since the shortage was declared in 2022. The Bureau’s choice is to keep deferring.
Lake Powell stands thirty-seven feet above the turbine-failure threshold; the Bureau has administered the system, for twenty-five years and counting, against the data its own hydrologists publish. The Bureau has the authority to allocate the shortage, to revise the below-cost contracts, and to make the river’s actual flow the basis for federal administration. The Bureau has had that authority for nearly sixty years.