Colorado River Brief — June 06, 2026
📅 Daily Colorado River Brief — Saturday, June 6, 2026
🚨 Breaking / Most important
Reclamation and six Lower Basin agencies signed a three-state interstate-exchange MOU at the Carlsbad desal plant June 3 — being called "QSA 2.0" — and acting Reclamation Commissioner Scott Cameron told the Boulder conference the federal preferred plan (a 10-year framework) will land "mid to late summer," to be imposed if the seven states don't agree first.
🏛️ Federal / Interior / Reclamation
At the Getches-Wilkinson Conference on the Colorado River (Boulder, June 4–5), acting Commissioner Cameron set the timeline: a final EIS in mid-summer detailing the federal preferred alternative — a 10-year operating framework — followed shortly by a final decision. He declined exact dates ("mid to late summer") and warned that remaining federal conservation funding is "south of $100 million," a sharp constraint on paying for voluntary cuts. The June 2026 24-Month Study is due around June 15.
💧 Reservoir ops & hydrology
System storage is now ~36% of capacity. WY2026 unregulated inflow to Powell is pegged at 3.27 MAF (34% of average); the April–July spring inflow (~800 KAF, 13% of normal) is the lowest on record. The May 24-Month Study projects Powell ending WY2026 near 3,511 ft (~20% full); Mead is projected near 1,037 ft by Dec 31 — with a conservative-scenario record low of ~1,036 ft. A June 1 analysis ("Storage Continues Slide Toward Crash") and conference experts warned another dry winter could push Mead and Powell toward minimum power pool.
⚖️ Policy, legal, post-2026 negotiations
Negotiations remain stalled: the Upper Basin's February consensus framework stands rejected by the Lower Basin, and LB has not rejoined formal talks. The mid-summer federal deadline is now the forcing function. Legal posture: no new filings today, but the May 31 SCOTUS Rio Grande ruling is being read as a possible ripple onto Colorado River disputes; Arizona's state engineer reiterates willingness to litigate, while UCRC's Becky Mitchell repeats "litigation will not generate any new water." Meeting posture: Cameron (acting commissioner) traveled to Boulder; CRIT Chairwoman Amelia Flores and the Water & Tribes Initiative were front-and-center — tribal inclusion is now a named pillar of any durable deal. No governor-level escalation signals today.
🌾 Lower Basin / Imperial Valley specific
The Carlsbad MOU was signed by Reclamation, SDCWA, MWD, SNWA, Arizona DWR, CAP, and SRP. Mechanism: San Diego would exchange its Colorado River supplies stored in Lake Mead for desalinated Pacific water — leaving those river supplies in Mead for Arizona/Nevada — using existing infrastructure, no change to underlying rights. IID was not a signatory.
📈 Significance for Imperial Valley
A working LB interstate-exchange framework strengthens the Lower Basin's "we're already contributing" posture heading into the federal decision — useful leverage against UB curtailment demands. But IID's absence from the Carlsbad table is worth watching: a "QSA 2.0" framing invites scrutiny of senior IID/PVID priority rights and Salton Sea mitigation obligations, exactly the scope CRB fought to keep out of the DEIS. With the feds now signaling a mid-summer imposed framework, the window for IID to shape — rather than react to — the post-2026 rules is closing fast.
📰 Further Reading
The big picture
KUER/KJZZ: The new target for a Colorado River plan is 'mid to late summer' — Best single read on the new federal timeline; Cameron's own words from Boulder.
Inside Climate News: Feds Will Soon Impose New Framework if States Can't Agree — Frames the mid-summer EIS as a default the states are racing to pre-empt.
AZ Luminaria: 'Devastating consequences' if another dry winter lands — Conference experts on crash risk.
Negotiations & policy
Courthouse News: Compact negotiators see rocky road toward mediation — Where mediation stands; UB/LB sticking points.
Review-Journal: States call for a Colorado River mediator as talks stall — Hamby's mediation case and the "verifiable contributions" ask.
Imperial Valley & IID / Lower Basin
Voice of San Diego: Colorado River Deal Is a 'QSA 2.0' — Sharpest take on what the MOU means for California water politics.
San Diego County Water Authority: Southwest Interstate Exchange MOU — Primary source; signatories and scope.
NPR: Why one of the cities most dependent on the river now has water to sell — The San Diego desal-for-river-water swap explained.
ENR: Colorado River Agencies Test Framework for Interstate Exchanges — Infrastructure/engineering angle on "moving water on paper."
Hydrology
Reclamation: Lower Colorado Weekly Hydrologic Update (June 1, 2026) — Primary-source reservoir data.
Reclamation: May 2026 24-Month Study Powell elevation projections — Primary source for the WY2026 endpoints.
Lake Powell live data / CAP Colorado River Conditions Dashboard — Standing real-time trackers.
Legal
Colorado Politics: SCOTUS settles Rio Grande dispute — Adjacent ruling water lawyers are reading for Colorado River implications.
🎲 One More Thing
Colorado River trivia:* The 1922 Compact divided the river using a phantom number. Negotiators assumed ~16.5 MAF of annual flow based on an unusually wet early-1900s record; tree-ring studies later showed the long-run average is closer to 13–14 MAF. The entire allocation system was overcommitted from the day it was signed.
Imperial Valley / IID trivia: The Salton Sea exists because of an engineering accident. In 1905 the Colorado River breached a poorly built irrigation intake near the Mexican border and poured almost its entire flow into the Salton Sink for roughly two years before crews — using rock hauled in by Southern Pacific rail — finally plugged it in 1907, by which point the modern sea had already formed.
📅 Why does the calendar show "Jul 17"? Apple hardcoded that date into the emoji artwork when they launched iCal on July 17, 2002. It never changes. The date in the headline is correct.