The Colorado River Problem, In Brief
Putting together a slide deck for a talk next week, borrowing Brad Udall’s trick of a horizontal line for visualizing the mean during different time periods.
Archive of posts filed under the Colorado River category.
Reservoir Drawdown in 2024: Are We on Track to Recover Storage?
By Jack Schmidt Unfortunately, water use between now and next April is on track to exceed the inflows of the snowmelt season, resulting in a net loss of reservoir storage. The persistent decrease in runoff is severely challenging the quest to rebuild reservoir storage. Summary Reservoir storage in the Colorado River basin is now …
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Federal Judge Cites Upper Colorado River Basin’s Compact Call Risk
A federal judge this week criticized the federal government for failing to consider the risk of a Colorado River Compact call in its environmental review of the planning for Denver Water’s expansion of Gross Reservoir in Boulder County. Wrangling over the risk of a compact call – which the judge said could force water use …
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Assigned Water on the Colorado River: Arizona Department of Water Resources response
The Arizona Department of Water Resources has published a thoughtful and also delightfully testy response to Enduring Solutions on the Colorado River, the white paper Kathryn Sorensen et al. (I’m one of the et alias) published in August. First a reminder of our core premise: As we work to reduce water use on the post-2026 …
Rubber Soul, the path to elevation 1,040, and the game of chicken on the Colorado River
Two years ago, when the level of Lake Mead was hovering near elevation 1,040, my artist wife Lissa Heineman and I drove out over UNM’s fall break to see it for ourselves. Out beyond the old Boulder Harbor, we walked a half mile across mud flats to get to the water. I could look out …
The 2024-2025 Season of Water Consumption: Can We Retain Our Gains?
By Jack Schmidt The decrease in reservoir storage following the 2024 inflow season has been thankfully modest, but not as favorable as it was at this time last year. Perseverance reducing consumptive uses and losses is needed for reliability and security in the water supply and to regain reservoir storage. Between mid-April and early July …
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Imperial Irrigation District’s water use on track for a record low, as is US Lower Basin use
Taming the Lower Basin Structural Deficit The federally funded water use reductions approved last month by the Imperial Irrigation District and the federal government have made their way into the Bureau of Reclamation’s annual forecast model (updated Sept. 6 as I’m writing this), and the numbers are remarkable. Imperial’s projected 2.2 million acre foot take …
Emerging Values and Institutional Reform on the Colorado River
Lorelei Cloud and John Berggren had a really important piece on Colorado River governance in the Colorado Sun last month that has not received sufficient attention. The challenge, they argue, is the lack of the institutional framework we need to address evolving societal values around the river’s management in a changing world. Cloud is Vice-Chairman …
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The search for enduring solutions on the Colorado River
Kathryn Sorensen & Sarah Porter, Kyl Center for Water Policy, Morrison Institute for Public Policy, Arizona State University; John Fleck, Utton Transboundary Resources Center, University of New Mexico School of Law Colorado River Basin governance is increasingly struggling with a deep question in water management: When we reduce our use of water, who gets the …
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Tipping Point: Colorado River Reckoning
Out toward the top left corner of this picture – maybe a little bit left, out of the frame – is the point where the Southern Nevada Water Authority gets its water out of Lake Mead. There’s nothing to see – the intake is at the bottom of the reservoir. Completed in 2015, …
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