The main boat ramp at Wahweap Marina was unusable due to low water levels in Lake Powell in December 2021. Water levels are projected to soon fall even lower than this at the nationโs second-largest reservoir.ย CREDIT:ย HEATHER SACKETT/ASPEN JOURNALISM
Western Slope lawmakers had harsh words for water managers at a state committee hearing last week, questioning whether Colorado has done enough to avoid a lawsuit with its downstream neighbors.
Colorado Sen. Dylan Roberts, a District 8 Democrat who represents several Western Slope counties, including Eagle, Grand, Garfield, Routt and Summit, asked Coloradoโs lead negotiator, Becky Mitchell, whether the people of Colorado should have confidence that negotiations among the seven states that share the Colorado River have put the state in the best possible position. The states have been at an impasse for more than two years without a deal for future management as reservoirs continue to decline to record-low levels.
โMy constituents just see fighting and intransigence,โ Roberts said. โAnd itโs concerning to me, especially as a Western Slope lawmaker โฆ that the strategy is just โLetโs hire more lawyers; weโre going to court no matter what.โ That doesnโt give me confidence, because I donโt think Colorado fares well when we go to court against Arizona and California and Nevada, throwing our fate to the nine justices on the U.S. Supreme Court.โ
The remarks came at Thursdayโs meeting of the state Water Resources and Agriculture Review Committee in Denver. Along with Mitchell, in the hot seat were state engineer Jason Ullmann and Amy Ostdiek, interstate section chief at the Colorado Water Conservation Board. The three are employees of the state Department of Natural Resources and have the backing of the Attorney Generalโs office in negotiations.
Robertsโ line of questioning seemed prompted by recent projections that show river flows dipping below a threshold that could trigger litigation. The Lower Basin states (Arizona, California and Nevada) believe that the Upper Basin states (Colorado, New Mexico, Utah and Wyoming) are bound by the 1922 Colorado River Compact to deliver 82.5 million acre-feet of water over a 10-year rolling average. According to the Upper Colorado River Commission, the 10-year average will dip later this year to about 81.3 million acre-feet because of persistent drought.
Some experts believe that this amounts to a โtripwireโ that could trigger a lawsuit from the Lower Basin states (Arizona, in particular, has been openly preparing for litigation) that could result in mandatory cuts in water use for the Upper Basin. Upper Basin water managers donโt subscribe to this interpretation, saying their states are only required not to deplete the riverโs flows by more than 75 million acre-feet over 10 years.
Mitchell was reluctant to share details of Coloradoโs legal strategy in a public forum, but she answered โabsolutelyโ that her teamโs work was putting Colorado in the best position. She said cutting back prematurely just to satisfy the Lower Basinโs interpretation of the century-old agreement would be bad for the state.
โIf we initiate curtailment now, that is worse for Coloradans,โ Mitchell said. โI think that is an important thing to remember.โ
Wracked by drought, climate change and a management crisis, the situation on the river has never been more dire. The current management guidelines expire this year, and in the absence of a seven-state deal to share shortages and operate the nationโs two largest reservoirs, Lake Powell and Lake Mead, the feds are poised to step in. The U.S. Bureau of Reclamation plans to release a more detailed, short-term plan to manage the river for the next two years by mid-to-late summer.
State Rep. Julie McCluskie, a District 13 Democrat, said communities in her district have been living with the incredible angst, anxiety and pain of no snow and low reservoirs.
โThe frustration I hear in my community is that we have missed multiple deadlines; they are becoming a funny joke,โ McCluskie said. โThere is such a fear about the lengthy litigation process, the fear of an outcome that is far worse for Colorado than a compromise that we have some control over.โ
Lake Powell is formed by Glen Canyon Dam. In a concept pitched by a conservation organization, a flexible pool of water could be moved between Upper Basin reservoirs to wherever itโs needed most. CREDIT: HEATHER SACKETT/ASPEN JOURNALISM
Conservation conversation is the โbare minimumโ
Lawmakers also had strong words for state officials regarding conservation, saying legislators must be involved in the creation of any program.
Colorado has dabbled with pilot conservation programs in the past, but traditional programs that pay farmers and ranchers to temporarily cut back on water use remain controversial. This is especially true on the Western Slope, which has long been the target for these types of programs, and where some worry that they could harm rural communities if not done carefully. After two years of exploring how the state could set up a temporary, voluntary and compensated conservation program, officials shelved the idea in favor of focusing on drought-resilience initiatives.
โOther states out of the seven have very clear and actionable roles for their general assemblies, their legislatures,โ McCluskie said. โWe have less so, and yet the stakes are so high. So I beg of you, decision-makers, that it is essential that we be a part of those next steps.โ
Julie McCluskie. Photo credit: Colorado General Assembly
Ostdiek said that any program would need to start slow and make sure it incorporates input from people throughout the state.
โI think that we can continue to assess as we go what we might need from you all, and what a program like that might look like,โ Ostdiek said. โI think what we can certainly commit to is continuing this dialogue and continuing the discussion about what we might need to make this a success.โ
In 2023, Colorado lawmakers tried to force stakeholders to come up with recommendations on conservation programs by creating a statewide task force, which met 10 times over six months. But the group failed to find a consensus, with some saying it was โprematureโ to create a conservation program.
As part of a post-2026 framework, the Upper Basin states plan to create a โcontributionโ pool in Lake Powell, which could be used to help stabilize the system, keeping water levels above critical thresholds to protect hydropower at Glen Canyon Dam and acting as an insurance pool against forced cutbacks. In a May 22 letter to federal officials, the Upper Basin states said they have a goal of saving 100,000 acre-feet by the end of water year 2028, but only if sufficient federal funding is available and hydrologic conditions allow.
Three Upper Basin states have different methods for contributing to this pool: Utah has its own demand management program; Wyoming lawmakers passed a law this year allowing for a conservation program; and New Mexico plans to release water from Navajo Reservoir.
But precisely how โ and how much โ Colorado would contribute to this pool is unclear. The stateโs share of the Upper Basinโs allocation is 51.75%, meaning Colorado could be on the hook for 51,750 acre-feet.
And ensuring that saved water actually gets into a pool in Lake Powell remains part of the problem. Currently, conserved water that stays in the river can just be picked up by a downstream user, withย no net gain to Lake Powell. Colorado officials say they do not have the authority to โshepherdโ water past other water users to the state line unless it is specifically for compact compliance.ย [ed. emphasis mine]
Last year, some Delta County ranchers asked lawmakers to take up the issue and pass a law that would address this issue, allowing water users to conserve and get credit for contributing water to a Lake Powell pool. But legislators did not take up a bill in the 2026 session.
Colorado officials told lawmakers they were continuing to explore what a program might look like and whether legislation would be needed.
Roberts said conversations with the legislature should be the bare minimum if Colorado is going to have a conservation program.
โIf the department or any agency of the state were to pursue a conserved consumptive use program or demand management program that used state tax dollars to pay for it and did not go through the legislature in a formal process, I imagine that all of us on this panel and many of our colleagues would raise holy hell about the unilateral decision-making coming from Denver about programs impacting all parts of the state,โ Roberts said. โSo, please, letโs just cut that off at my recommendation. Letโs work together on this.โ
Officials opened the hearing by highlighting the impacts of this yearโs severe drought on Coloradoโs farmers and ranchers, noting how even some of the most senior water users will experience shortages as streamflows dwindle. Orchards in the North Fork Valley and row crops in the Uncompahgre River Valley already have unprecedented shortages.
In response to Robertsโ concerns about the failure to find a compromise among the seven states, Mitchell posed a high-stakes rhetorical question: โI would ask, โWhat else do you think we can give?โโ
The Colorado River Basin spans seven U.S. states and is divided into Upper and Lower Basins. Lake Powell, upstream from the Grand Canyon, and Lake Mead, near Las Vegas, are the two principal reservoirs in the Colorado River water-supply system. (Bureau of Reclamation)
Becky Mitchell. Photo credit: Allen Best/Big Pivots
Click the link to read the article on the Big Pivots website (Allen Best):
June 25, 2026
In haggling with their down-river states about sharing the rapidly shrinking Colorado River, the headwater states have delivered a consistent message.
We donโt have two big reservoirs named Mead and Powell sitting upstream from us, they say. Mostly we must make do with what the sky delivers.
At the Upper Colorado River Commission meeting in Denver this week, the states reiterated this message, offering ample evidence from places like Emery, Utah, and Kemmerer, Wyo.
Lest anybody miss the message, Chuck Cullom, the director of the upper-basin commission, showed aerial images of farming areas in Colorado and the other upper-basin states. Far less green was evident in the Montrose area and on the Ute Mountain Ute Reservation during June than in 2024.
This exceptional year for drought and heat was described by several speakers in Denver as dire. โI want you all to recognize the significance and severity of the things weโre dealing with,โ said the Utah representative, Gene Shawcroft. โTotally unprecedented.โ
In western Colorado, a Meeker rancher used the same word to describe withered streams. โThe situation here has gone from bad to dire.โ
Upper-basin states have been in a tug-of-war for the last three years with lower-basin states about how to share this diminished river. As Becky Mitchell (above), Coloradoโs representative, says repeatedly, we have a math problem. Itโs impossible to continue releasing more water from reservoirs than flow into them. Upper-basin states, she says, โlive within the means of the river.โ
Udall/Overpeck 4-panel Figure Colorado River temperature/precipitation/natural flows with trend. Lake Mead and Lake Powell storage. Updated through Water Year 2025. Note the tiny points on the annual data so that you can flyspeck the individual years. Credit: Brad Udall
In crafting the Colorado River Compact in 1922, delegates assumed annual flows of roughly 17 to 18 million acre-feet annually at Lee Ferry, the legal division point separating the upper and lower basins. The 20th century delivered naturalized flows of 15.2 million on average.
In this century, flows have slackened even more. Since 2019 they have averaged 10.2 million acre-feet. This year less than 1 million acre-feet is expected to flow into Lake Powell other than releases from upstream reservoirs.
The compact pledged 7.5 million acre-feet to each of the two basins. The lower-basin states for many years over-used their allocation. Upper-basin states topped out at about 4.5 million acre-feet, using 3.5 million acre-feet in drier years.
Colorado and other basins states insist upon the right to use more water โ if itโs there. Pre-compact rights of all Native American tribes have yet to be realized. All this creates a different math problem.
When the four upper basin states adopted their own compact in 1948, they wisely chose to use a percentage not an absolute number. That would make sense for the Colorado River Basin altogether โ if the two basins could agree upon it. Tensions have elevated. Outwardly this marriage looks very rocky.
Might there be another way? Tanya Trujillo, New Mexicoโs new representative, offered an intriguing statement at the Denver meeting.
โI think we need to think differently about some things,โ she said. โIn New Mexico, weโre going to be taking a fresh look at some of the issues that we are facing and really try to look for a collaborative process going forward.โ
In time of crisis, she added, itโs important to โproject calm, knowledgeable reassurance and try to be part of the solution, not part of the problem.โ
For whom was that message intended? It was not clear. However, even in Colorado, some have suggested upper-basin states have overstated their case.
What cannot be contested is Mitchellโs assertion that demands cannot exceed supplies. This year, weโre robbing Peter to pay Paul. Water is being taken from Flaming Gorge and other federal upstream reservoirs to keep water in Powell. Blue Mesa Reservoir near Gunnison may have too little water to release any downstream, a condition called dead pool. The Bureau of Reclamation similarly sees that possibility for Navajo, the reservoir on the Colorado-New Mexico border.
The Bureau intends to release six million acre-feet from Powell for the lower-basin, leaving Powell 80% empty. The agencyโs โmost probableโ projections see reservoir levels at Glen Canyon Dam early next year being too low to generate electricity.
In Grand Junction this week, people stood in the rain with sheer delight. It was a feel-good moment. But will El Niรฑo save us from calamity? Maybe, but donโt bet on it. The warming climate seems to be rewriting the rules about how much water from the Pacific Ocean arrives on our mountains.
hat was the takeaway from a recent presentation by Brad Udall, a scientist scholar affiliated with Colorado State University. El Niรฑos in the past have produced big water years. One was in 1983, the year that flood waters nearly broke Glen Canyon Dam. Often, though, an El Niรฑo produces no more moisture than a La Niรฑa.
โThe real questionโ said Shawcroft, the Utah representative, โis what happens if next year looks like this?โ
Map of the Colorado River drainage basin, created using USGS data. By Shannon1 Creative Commons Attribution-Share Alike 4.0
This field of alfalfa near Carbondale is grown with water from the Crystal River. Some Colorado River experts are advocating for a permanent reduction in the use of water by agriculture.ย CREDIT:ย HEATHER SACKETT/ASPEN JOURNALISM
Some Colorado River experts are floating a concept to address the basinโs water woes that is both radical and mundane: permanently reducing the amount of water used by agriculture.
Many cities have already reduced their water use in recent decades while adding residents, proving that population growth doesnโt have to be tied to an increase in water use. A 2024 study by Colorado River scientists found that agriculture is responsible for about 74% of water used by people in the basin, meaning urban conservation alone cannot solve the crisis.
โI think we need to have permanent reductions in use on the table and agriculture will have to be part of that,โ said Anne Castle, a Colorado River expert and a former federal representative to the Upper Colorado River Commission.
Castle was the lead author on a June 1 paper that urgently called on the entire basin to permanently decrease consumptive uses to avoid the worst impacts to reservoirs and water users. Castle and the paperโs other authors are Colorado River experts and academics, and are the brain trust of the basin sometimes referred to as the Traveling Wilburys, a joking reference to the rock music supergroup. But their message is anything but humorous.
The latest paper says another dry winter would deplete remaining storage and result in devastating consequences like run-of-the-river operations where the nationโs two largest reservoirs can only release downstream the same amount of water that flows into them. Itโs the last stop before deadpool, when levels are too low to release water. The authors urge water managers to act immediately to reduce use and avoid a system crash.
But permanently cutting the amount of water that goes to agriculture remains a controversial topic, and water managers from both the Upper and Lower basins say drying up land is not a solution for their basin. Most conservation programs up until now either have been temporary or have allowed the saved water to be used elsewhere. Castle said the problem is especially difficult when peopleโs livelihoods are on the line.
โThe folks who are vulnerable to those kinds of permanent reductions are understandably resistant,โ Castle said. โBut thereโs not enough water. The river wonโt allow us to use the same amount of water that weโve been accustomed to using in the past.โ
The seven states that share the Colorado River are under increasing pressure to cut water use as one of the worst droughts on record threatens the water supply for millions of people. On the heels of one of the hottest and driest winters since measuring began, spring flows into Lake Powell this year are projected to be the lowest on record.
Much of the $4 billion from the Inflation Reduction Act earmarked for drought mitigation has gone toward short-term conservation. Water users in the Lower Basin states (California, Arizona and Nevada) were paid to temporarily leave water in Lake Mead. And in the Upper Basin (Colorado, New Mexico, Utah and Wyoming), the feds paid irrigators $45 million to leave fields dry during a two-year reboot of a pilot conservation program.
But in the midst of a climate change-fueled megadrought that has already robbed the river of at least 20% of its flows, experts say temporary measures no longer cut it. Water managers are reckoning with the reality that the river will probably never again deliver what was promised a century ago by the Colorado River Compact. The demand for water now far outstrips the dwindling supply.
โAre we going to continue to spend hundreds of millions of dollars a year and not have a permanent solution?โ said author and Colorado River expert Eric Kuhn. โI think, at some point, it just makes economic sense to go ahead and say, โLetโs buy out the existing demand.โโ [ed. emphasis mine]
These hay bales stand ready to be collected on a ranch outside of Carbondale. Credit: Heather Sackett/Aspen Journalism
Buying out demand
Against this backdrop, some in the academic community are advocating for the federal government to either set up a voluntary program to buy and retire lands that use a lot of water or pay landowners who agree to permanent restrictions on water use.
A paper released last year and authored by Kathryn Sorensen and Sarah Porter, who are Colorado River experts at the Kyl Center for Water Policy at Arizona State, lays out how this could be done. Eligible land would have to meet certain characteristics, including being in an area where the economic impacts of not using water are least painful and where impacted crops could be feasibly grown outside of the Colorado River basin, among others.
According to Porter, the federal government should be the entity that buys down demand. The large infrastructure projects funded by the feds in the 20th century are what created booming irrigated agriculture in the West to begin with. And the other entities in the basin that have the ability to buy agricultural water want to use it themselves, not keep it in the system.
โA reset in the Colorado River basin really is needed,โ Porter said. โWe have a lot of agriculture thatโs really a legacy of how the United States was settledโฆ . And now weโre grappling with overallocation and shortage and struggling to figure out a way to manage the Colorado River.โ
The proposal is different from the much-derided โbuy-and-dryโ which usually involves an opportunistic transferring of water from agriculture to cities, not an overall reduction in water use. Still, the potential negative impacts to rural communities have to be considered.
โYou have to have a provision for what happens to the land when you remove agriculture and what happens to the local economy when you remove agriculture,โ Porter said.
And experts say there is a precedent for the type of federal buyouts that could help the drought-stricken river: the Bankhead-Jones Tenant Farm Act from 1937. This New Deal piece of legislation was a response to the Dust Bowl and allowed the federal government to buy and retire badly eroded or economically unproductive farmland.
The paper says a Colorado River program could start not with those that grow valuable vegetables in winter but, rather, with lands that use a lot of water but have low economic output. The paper says retired agricultural lands could be used for alternative purposes that support local economies such as recreational opportunities or low water-use industries.
Figuring out how to implement conservation programs without harming rural agricultural communities has been a main focus in recent years of the Colorado River Water Conservation District, which works to keep water on the Western Slope. River District General Manager Andy Mueller said that agriculture has a role to play in reducing water consumption, but that permanently retiring agricultural land is a misguided approach that will put the country in danger of not being able to feed itself. Programs should remain temporary, and focus on efficiency improvements and growing less-thirsty crops, he said.
โIf itโs temporary, if itโs well-designed in a way that respects local communities, traditions and practices, is custom-built for each community in a way that really tries to do as little economic damage as possible โ potentially even bringing some benefits to those farming families that participate โ there are ways to do it,โ Mueller said.
A tractor on a farm in Californiaโs Imperial Irrigation District, the largest user of agricultural water in the Colorado River basin. A California representative says there is no interest in drying up ag land because itโs so extremely productive. CREDIT: HEATHER SACKETT/ASPEN JOURNALISM
On the fringe
Although certain academics and experts are talking about permanently drying up agricultural lands as a means of saving water, the concept remains on the fringe of Colorado River politics. Itโs both the third rail and the elephant in the room.
โItโs going to pull away from the fringe really quickly when youโve got to really justify continuing to pay on an annual basis forever,โ Kuhn said. โWeโre just trying to get the discussion out there, make it acceptable to have the discussion.โ
On top of the abysmal hydrologic conditions, the basin is also in the midst of a management crisis. After two years of negotiating, the Upper Basin and Lower Basin states have failed to reach a consensus on how they will share future cuts and have blown past deadlines to come up with a plan. The responsibility for river management now falls to the federal government, which is scheduled to release this summer a short-term operating plan for Lake Powell and Lake Mead.
Part of what makes the problem so tricky is that water managers are still guided by the Colorado River Compact, a century-old agreement that splits the riverโs flows evenly between the two basins. Upper Basin water managers still cling to the notion that because their states are already living within the 7.5 million acre-feet of water allotted to them annually, cutbacks are the responsibility of the Lower Basin, which they say uses more than its fair share.
Becky Mitchell, Coloradoโs lead negotiator in talks among the seven states, said that permanent dry-up of agriculture in the Upper Basin isnโt necessary because the Upper Basin states already send more than 8 million acre-feet โ more than legally required โ of water downstream per year. Dry-up may be part of the overall solution, she said, but each state should take its own individual approach to making cuts.
โThose durable reductions are going to be required (for the Lower Basin) to first get in line with their apportionment, but then getting in line with the available supplies is a whole โnother conversation,โ Mitchell said.
Californiaโs representative, JB Hamby, said permanent fallowing doesnโt have a place in reducing the stateโs demand either. California is home to the biggest urban and agricultural water districts, as well as the largest allocation of Colorado River water of any of the seven states that share the river.
โIn the case of California, thereโs no real discussion or interest whatsoever in the retirement of ag lands,โ Hamby said. โLand in Southern California that receives Colorado River water is so extremely productive. There is a year-round growing season where every single day of the year there are things being grown.โ
Past water savings in Southern California have mostly come from efficiency improvements on farms and in delivery systems, and from deficit irrigation programs in which water is temporarily taken off fields for part of a season. In the absence of a seven-state deal, the Lower Basin states have offered up 700,000 acre-feet of cuts per year through 2028, which is on top of an initial 1.5 million acre-feet in cuts. Most estimates say the basin needs to cut water use by 2 million to 4 million acre-feet.
โThereโs full agreement that water should be reduced,โ he said. โThereโs not agreement in how or where it should be reduced. So the Lower Basin is moving forward, doing our thing, making reductions.โ
Cowgirls wrangle a calf at a Delta County ranch. Farming and ranching are an important part of the heritage of the American West, which makes permanently reducing water for agriculture a tricky issue.ย CREDIT:ย HEATHER SACKETT/ASPEN JOURNALISM
Ultimately, discussions about permanently reducing the amount of water that goes to farmlands in the basin remain difficult, in part because agricultural water rights are some of the biggest, oldest and most politically powerful in the basin. But there is also an attachment to the American Westโs farming and ranching heritage.
โWe love agriculture; itโs part of our roots,โ Porter said. โWe donโt like to think about losing agricultural production. I think we are generally hesitant to have that conversation, and we really havenโt had it as a basin.โ
Map of the Colorado River drainage basin, created using USGS data. By Shannon1 Creative Commons Attribution-Share Alike 4.0
Glen Canyon Dam and Lake Powell, one of the nation’s largest-capacity reservoirs whose operation has been a point of contention between the Upper and Lower Basins of the Colorado River. (Alexander Heilner, The Water Desk)
Western Water In-depth: A ‘wild idea’ to defuse the colorado river compact’s legal time bomb has been kept alive by seasoned observers who believe it could still save the river
For the past 20 years, the Colorado River has been operated under a set of guidelines negotiated between the seven states that depend on the river. Those guidelines expire this year, and after five years of grinding negotiations over a new agreement, the upstream states of Colorado, Wyoming, Utah and New Mexico remain deadlocked against the downstream states of California, Arizona and Nevada.
Some 40 million people and 5.5 million acres of farmland depend on the riverโs water. But after the states failed to meet two federal deadlines in three months, the river is in a moment of unprecedented crisis. A dire snowpack has left flows just 15 percent of normal, many farms without water and several cities scrambling to secure water supplies as they gird themselves for shortages.
That has set up a showdown over a legal time bomb thatโs been ticking away at the heart of the Colorado River Compact since the riverโs guiding document was signed more than 100 years ago. The Lower Basin states believe the Compact promised them a minimum delivery of water sent down the river from the Upper Basin. The Upper Basin states believe the Compact promised them a fixed amount of water that they could rely on to meet future growth. As the riverโs flows have dwindled, those two supposed guarantees are proving to be irreconcilable.
Experts have seen the showdown coming for a long time, but climate change has accelerated the day of reckoning. In 2000, a drought sunk its teeth into the river and hasnโt let up. Dubbed the Millennium Drought, it is now recognized as one of the worst droughts on the river in more than 1,200 years โ and may actually be the beginning of a long-term shift to a drier reality.
Despite near-endless negotiations to find a way to keep the riverโs massive reservoir system from crashing โ an effort that began over two decades ago โ the drought may have finally pushed the Colorado River Compact to its limit. Now, the system is nearly empty and runoff from this winterโs snowpack, the source of any water that might offer even a small hope of relief, will be among the lowest sinceย Glen Canyon Damย was built near the Arizona-Utah border,ย creating Lake Powell, more than 60 years ago. Flows in the river are perilously close to hitting the primary legal โtripwireโ in the Compact. Once thatโs crossed, the Lower Basin states would likely try to force the Upper Basin to deliver their water apportionment downstream โ a prospect long considered unthinkable.
โAll those negotiations helped push the day of reckoning back further, and helped delay the inevitable,โ says Doug Kenney, who heads the University of Coloradoโs Western Water Policy Program. โBut at some point, you just have to acknowledge the fact that the numbers donโt add up and youโre going to have to deal with it. Weโre at that point.โ
Two obvious paths now lie ahead. One is a courtroom fight, either against the U.S. Secretary of the Interior or a challenge between two states under the terms of the Colorado River Compact, which would go directly before the Supreme Court. A high court case would be a doomsday scenario, a messy and protracted legal battle that, until now, the seven states desperately sought to avoid. The other potential path is a stopgap fix, a short-term interim plan negotiated between the states or imposed by the Interior secretary. That could, at least temporarily, forestall a trip to court, but it wouldnโt resolve the fundamental conflict.
For more than two decades, however, the possibility of a third path has stubbornly persisted in the background: A โgrand bargain,โ an idea first proposed in 2005 by Coloradoโs negotiating team early in the effort to grapple with the worsening drought. The concept was an unorthodox bid to defuse the ticking time bomb โ but it would require each basin to trade away its most cherished claim on the river.
โA WILD IDEAโ
Roughly 90 percent of the Colorado Riverโs flow originates as snowpack in the Rocky Mountains. One of the principal goals of the 1922 Compact, which is essentially a seven-state treaty, was to avoid future legal battles by creating an โequitable division and apportionmentโ of water between the Upper Basin states in the riverโs headwaters and the faster-growing Lower Basin. The Compact apportioned 7.5 million acre-feet a year from the mainstem of the river to each basin. (An acre-foot is 325,851 gallons, enough to supply the average annual needs of roughly 3 households, depending on their location and climate.)
The Colorado River Basin spans seven U.S. states and is divided into Upper and Lower Basins. Lake Powell, upstream from the Grand Canyon, and Lake Mead, near Las Vegas, are the two principal reservoirs in the Colorado River water-supply system. (Bureau of Reclamation)
The Compact also contains a requirement that the headwaters states not deplete the flow of the river below 75 million acre-feet, plus another roughly 7.5 million acre-feet (half of the apportionment earmarked for Mexico), on a 10-year running average. Those provisions were intended to provide surety to the downstream Lower Basin states that they would receive their 7.5 million-acre-foot annual apportionment and that the basins would share equally in the Mexican obligation. If the 10-year running average requirement is violated, the Lower Basin states could โ at least in theory โ initiate a Compact โcallโ against the Upper Basin in an attempt to force the headwaters states to deliver more water downstream.
For roughly 80 years after the Compact was signed, the prospect of a Compact call was purely theoretical. Then the Millennium Drought set in. By 2005, the two flagship reservoirs on the Colorado River โ Lakes Mead and Powell โ were half empty.
The drought was pushing the riverโs flows closer to a Compact violation trigger, making the risk of a call by the Lower Basin a growing probability. The Lower Basin, particularly Arizona, was insisting on guaranteed releases of water from Lake Powell. And because Colorado has the biggest share of the river within the Upper Basin and uses a greater portion of its apportionment than the other upstream states, it is most at risk. It began searching for a way to slip out of the legal noose of a Compact call.
In September 2005, the seven statesโ top negotiators met in Albuquerque, New Mexico. During a lunch break, Coloradoโs team made its pitch. The stateโs negotiators proposed that the Lower Basin waive its right to force a downstream delivery through a Compact call. In exchange, the Upper Basin states would limit their water use to less than whatโs strictly apportioned in the Compact, thereby reducing potential demand in the headwaters of Colorado and Wyoming that supply nearly the entirety of the riverโs flow.
The offer was essentially a simplification and reframing of a dizzying array of technical disagreements over various provisions of the Compact โ an attempt to throw spaghetti at the wall to see if it would stick.
Jim Lochhead, who had previously been Colorado’s top negotiator and in 2005 was serving as a legal advisor on the state’s team.
โMy recollection was that it was a pretty spontaneous proposal,โ says Jim Lochhead, who had previously been Coloradoโs top negotiator and in 2005 was continuing to serve as a legal advisor on the stateโs team. โWe werenโt making any progress, and it was pitched as, โIf you really want to cut through all of this and get to the bottom, hereโs a wild idea.โโ
The proposal sparked discussion among all the parties at the negotiating table but also raised difficult issues.
โIt was a great concept on paper,โ says Pat Mulroy, who was the head of the Southern Nevada Water Authority and Nevadaโs principal negotiator at the time. โWhether it was politically doable or not is a whole other ball game.โ
In large part, thatโs because a grand bargain would have forced both basins to give up assurances in the Compact that they consider sacrosanct.
โIโm not sure the Upper Basin would ever have agreed to limiting their ability to fully develop their 7.5. Itโs like giving up your birthright โ Iโm not sure they could have sold that at home,โ says Mulroy. Conversely, she says, โgiving up that call provision is really the only weapon the Lower Basin has.โ
And, indeed, following its spontaneous birth in Albuquerque, the proposal ran into stiff political headwinds back home in Colorado, where it failed to get then-governor Bill Owensโ blessing.
โI wasnโt directly representing the state of Colorado at that time; I was representing Colorado water users,โ Lochhead says. โAnd when I brought the idea back to the state, it pretty quickly got shot down: โNo, we canโt agree to anything that would not keep the dream alive of 7.5 million acre-feet being developed in the Upper Basin.โโ
The prospect of a grand bargain itself faded from discussion. And yet, in ways that arenโt often acknowledged, it continued to shape the broad contours of the negotiations that unfolded over the next two decades.
The quest to escape the noose of a Compact call has remained central to Coloradoโs bargaining position.
โThe concept of a waiver of a Compact call is alive and well,โ says Anne Castle, a former assistant Interior secretary who is now a senior fellow at the University of Colorado. โThe quid pro quo for that waiver has taken different forms.โ
To a large extent, the details of the various offers the Lower Basin has made in exchange for a possible waiver โ which have sometimes been characterized within the negotiations as โmini grand bargainsโ โ have never become public. What is clear is that the two basins have consistently failed to cut a deal.
Instead, the seven states adopted a more incremental approach, negotiating a series of drought-protection agreements based on smaller, more politically palatable deals. While thatโs been a safer path for everyone politically, it has brought other kinds of risk.
โIt just added layer upon layer of Gorilla Glue and Band-Aids thatโs made it much more complicated to try to unwind or develop new agreements,โ Lochhead says, โand has obviously proven to be inadequate in protecting the system.โ
A SECOND LIFE
While the concept of a grand bargain led a short life at the negotiating table, it has gone on to live a remarkable second life. The idea was picked up and revived by a loose-knit group of seasoned observers of Colorado River issues who, for years, have called for more durable alternatives to the patchwork of ideas [ed. “The Law of the River”] in play among negotiators.
Eric Kuhn was a member of Coloradoโs negotiating team when the grand bargain was proposed in 2005. At the time, he was the general manager of the Colorado River Water Conservation District based in Glenwood Springs and he has written thoughtfully and voluminously about the riverโs problems. After his retirement in 2018, he partnered with John Fleck, a former journalist who is now author-in-residence at the University of New Mexicoโs Utton Center, to write Science Be Dammed: How Ignoring Inconvenient Science Drained the Colorado River.
Kuhn and Fleck concluded the book by observing that โthere is not enough water in the Colorado River for all the lawyers to be right,โ and suggested the grand bargain as a way to avoid the courtroom.
โThe basic idea of a grand bargain is, in lieu of litigation, weโre going to agree to something that both sides want,โ says Kuhn.
He and Fleck werenโt the only ones who pushed for more serious consideration of the idea. Doug Kenney at the University of Colorado also has championed the concept. In 2012, he enlisted Kevin Wheeler, a widely respected engineer and fellow at Oxford University, to undertake modeling analysis of the kinds of trade-offs a grand bargain might require.
Persistent drought has lowered Lake Powell’s water level and exposed land that was once submerged at Wahweap Marina, as seen in this 2022 photo. (Bureau of Reclamation)
In 2021, Wheeler โ together with a group of collaborators including Kuhn, climate scientist Brad Udall and Jack Schmidt, the director of Utah Stateโs Center for Colorado River Studies โ published a white paper called โAlternative Management Paradigms for the Future of the Colorado and Green Rivers.โ It was a comprehensive assessment of more ambitious strategies for weathering the drought and climate change than had emerged from now-perpetual negotiations between the states.
โNew approaches that are responsive to significantly drier climate conditions and changing patterns of consumptive uses may require bolder policy initiatives that exceed the incremental approach of modern management,โ the group wrote. โIt is critical to explore alternative water management strategies that may extend beyond the framework of the Law of the River as presently interpreted.โ
The following year, the team published a paper in the journal Science titled โWhat Will it Take to Stabilize the Colorado River?โ And, it turned out, stabilizing the system would take something that looked a lot like a grand bargain.
Assuming the drought persists as it has since 2000, Wheeler and his partners identified two scenarios that would stabilize the river, both of which assumed the Lower Basin had waived its ability to make a Compact call. In one, the Lower Basin would need to decrease its water use by about 2 million acre-feet a year when Lake Mead and Lake Powell reach low levels. That would assure it of about 78 percent of its apportionment โ an amount roughly in line with cuts it has already committed to taking. In exchange, the Upper Basin would have to cap its water use at 4 million acre-feet. But thatโs only slightly more than half of its 7.5 million-acre-foot Compact apportionment, and roughly 300,000 acre-feet less than what it currently uses.
The second scenario โ call it the โnear-parity scenarioโ for simplicity โ more equally distributed the Upper and Lower Basinsโ relative cuts in apportionment. In it, the Upper Basin would cap its use at 4.5 million acre-feet, leaving it with 60 percent of its Compact apportionment. The Lower Basin would be able to use about 67 percent of its Compact apportionment when reservoirs are low, just slightly more percentage-wise than the Upper Basin. But it would have to cut its uses by 3 million acre-feet below its apportionment.
That would stabilize the system โ or at least go a long way toward doing so โ while largely meeting existing water demands in both basins. The Upper Basin currently uses about 4.3 million acre-feet per year. The Lower Basin, after ramping up an aggressive water conservation effort since 2007, has driven its annual use down to about 6 million acre-feet per year, and has signaled that it could likely reduce demand further.
But it would leave practically no leeway for future growth, at least without reshaping the socioeconomic landscape across the entire Basin. In particular, any future urban growth could come only by shifting significant amounts of water from farms to cities.
HARD MATH
Today, there is a simple, hard reality on the Colorado River: The available water supply is already maxed out. Water use throughout the basin needs to be reduced by roughly 25 percent just to make the numbers work now โ to say nothing of the future, which is likely to be significantly drier.
In Colorado, that has raised hard questions about fairness, the โequitable division and apportionmentโ provision of the Compact, and the assurance the state thought it had that its water would be there to develop when itโs finally ready.
โEveryone agrees that there should be an equitable division of water, and the word โequityโ is one that everyone will rally around,โ says Kenney. โBut does equitable mean equal? Thatโs the crux of the issue.โ
Over the past several years, Coloradoโs attorney general, Phil Weiser, has been building his officeโs staff of water lawyers. This January, Weiser, who is currently running for governor, appeared before a joint hearing of the state legislatureโs judiciary committees.
โIf we canโt get a deal โ and Iโm committed to not getting a bad deal just to get a deal โ weโll be in litigation. Weโre ready for it,โ he said. โIf and when we can get a reasonable deal based in reality, Iโm for it. But if we canโt, then we will be falling back on our rights under (the) 1922 Compact.โ
Because of the peculiarities of the water-rights hierarchy in the Lower Basin, Arizona is arguably most at risk there. In March, that state โ whose governor, Katie Hobbs, is running for re-election โ retained the high-powered law firm Sullivan & Cromwell to represent it in potential Colorado River litigation. At the time, a spokesman for the governor said, โitโs critical that Arizona be prepared to defend ourselves in court if an agreement cannot be reached or the Law of the River is violated.โ
Anne Castle, a veteran of Colorado River issues. Former U.S. Commissioner, Upper Colorado River Commission โข Former Assistant Secretary for Water and Science, U.S. Department of the Interior. (Source: Water Education Foundation)
โIt is very difficult for a political figure โ and theyโre all political figures, even if theyโre not elected โ to agree to reduce the water use of their constituents and keep their career alive,โ says Anne Castle. โThey have to be able to tell their constituents, โIโm fighting for your water. Iโm doing everything I can to keep your water secure, and itโs the other guyโs fault.โ The political incentives are directly at odds with the kind of compromise thatโs needed in this type of hydrologic situation.โ
Following the breakdown in negotiations between the Colorado River states, the federal government has announced its intention to step in. In May, the Bureau of Reclamation, on behalf of the Department of the Interior, revealed that it is preparing the first of what could be a series of five two-year interim plans for the river.
The final details are expected to be released this summer. But the federal government has indicated that the Interior secretary could cut water deliveries to the Lower Basin states by up to 3 million acre-feet โ 40 percent of their Compact apportionment. During a briefing for Arizona water users in May, Brenda Burman, the head of the Central Arizona Project, presented modeling analysis of the proposed reductions and noted that, given the diminished releases from Lake Powell, the Upper Basin is โin a definite breach of the Compact by Sept. 30 of 2026.โ
Owing to some quirks of river history, the secretary debatably has less authority in the Upper Basin, and so Reclamation has proposed no cuts there. But as climate change continues to eat away at snowpack and river flows, the Upper Basin states will likely be forced to cut back their uses anyway. Regardless of what the Compact says the Upper Basin gets, the water simply wonโt be there.
And so now the seven states are facing a situation eerily similar to those in the near-parity scenario Wheeler and his colleagues laid out in their Science paper four years ago โ but without a bargain.
COMING FULL CIRCLE?
In many ways, the prospects have never been worse for something like a grand bargain. Yet the fundamental problems the grand bargain was intended to solve have only grown sharper in the 20 years since it was first proposed.
โThe grand bargain has gotten a bad name,โ Kuhn says. โBut if these issues arenโt resolved through a grand bargain, theyโre going to be resolved through litigation.โ In 2007, he says, the riverโs reservoirs still had ample water to work with. โWith empty reservoirs, you cannot finesse these issues.โ
Glen Canyon Dam creates water storage on the Colorado River in Lake Powell. Credit: U.S. Bureau of Reclamation
Litigation could come as soon as August, when Reclamation will likely release a record of decision for its proposed new operating plan. Legal action could take one of several paths. The one with the highest stakes would be direct enforcement of the Compact, likely in the form of a Compact call brought by Arizona and the other Lower Basin states against the Upper Basin states. Because the Compact is essentially a treaty between multiple states, that would go directly before the Supreme Court. But such cases are often grindingly long: Arizonaโs 1952 lawsuit against California over Colorado River rights took a dozen years to resolve. A case in the Supreme Court could put the river in protracted litigation during a time of profound crisis.
Other, more limited challenges are possible, most likely against the Bureau of Reclamation or the secretary of the Interior for failure to comply with the Compact or violating environmental laws. But they, too, are not without risk.
โI have a hard time believing you could keep litigation contained, once that genieโs out of the bottle,โ says Kenney. โI just have to believe that inevitably blows up into a full-fledged interstate litigation and it bumping right up to the Supreme Court.โ
As the odds rise of a legal challenge to the Compact that could ultimately wind up before the highest court in the land, the fundamental tension the grand bargain was intended to resolve will likely be front and center before the justices. And, paradoxically, that could force the states themselves to finally make the really tough sacrifices theyโve been trying to avoid.
โI think that a road to a grand bargain runs through litigation,โ says Kuhn.
Thatโs because in past interstate fights over shared rivers, the Supreme Court has typically appointed a water-law expert known as a special master to referee such cases. The most recent example is the dispute between Texas, New Mexico and Colorado over the Rio Grande. In that case, Kuhn notes, โthe special master said, โYou donโt want me or the court to decide this; get in a room and negotiate it.โ The special master kept the pressure on the states to negotiate.โ
This May, the Supreme Court approved a settlement between those three states. Still, even that resolution only came a full 13 years after the case was initially filed, and it involves relatively small reductions in overall water use.
On the Colorado River, both water and time are in far shorter supply.
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Colorado River “Beginnings”. Photo: Brent Gardner-Smith/Aspen Journalism
Click the link to read the article on The Denver Post website (Elise Schmelzer). Here’s an excerpt:
June 21, 2026
The two major reservoirs on the Colorado River face dire outlooks that will likely spur federal officials to restrict the amount of water flowing downstream โ and decrease hydropower generation โ in the coming months, even after they ordered recent emergency measures. Projectionsย released last week by the U.S. Bureau of Reclamationย show that if dry conditions persist, Lake Powellโs water level could dip below a threshold called โminimum power poolโ as soon as February. Thatโs the level below which water can no longer flow through the reservoirโs hydropower turbines. Without intervention, the projections say, the lake will remain below the critical elevation for the foreseeable future.
Lake Powell key elevations. Credit: Reclamation
The threat of Powell hitting that threshold โ 3,490 feet in elevation โ has hovered above federal water managers for months as the reservoir has continued to drop to record-low levels. In April,ย U.S. Bureau of Reclamation leaders announcedย that they would send up to 1 million acre-feet of water from the upstream Flaming Gorge Reservoir to Powell and reduce the amount of water released from Powell to keep the reservoirโs level at 3,500 feet above sea level โ which includes a small buffer Reclamation officials want to maintain to stay above the power pool level. Powellโs water levels continue to drop as Colorado River leaders deal with two crises: one climatological and one political. Long-term drought fueled by climate changeย has shrunk the Colorado Riverโs flowsย as federal officials and water leaders in the seven basin states โ including Colorado, home to its headwaters โ struggle to agree on longer-term plans for the riverโs management. So far, theyโve failed to find agreement on how to divvy up the usage cuts necessary to adapt to lower flows that reduce the water supply for farmers and residents in a region thatโs home to 40 million people.
The back of Glen Canyon Dam circa 1964, not long after the reservoir had begun filling up. Here the water level is above dead pool, meaning water can be released via the river outlets, but it is below minimum power pool, so water cannot yet enter the penstocks to generate electricity. Bureau of Reclamation photo. Annotations: Jonathan P. Thompson
When Lake Powellโs levels fall below minimum power pool, that means water can no longer flow through the intake tubes forย Glen Canyon Damโs hydropower facility, which is the primary method for moving water downstream from the reservoir in southern Utah. Instead, water can move only through much smaller bypass tubes that, for years, have been considered unsafe for long-term use โ though Reclamation officials now say they can be operated safely with continuous maintenance. The bureauโs most recent projections, released Tuesday, show that the emergency measures taken this spring will only be a stopgap, unless extremely wet weather returns…If Lake Powell falls below minimum power pool, the only way to release water downstream is through four 8-foot-diameter tubes called the river outlet works. For years, Bureau of Reclamation officials have said the tubes were not designed for long-term use at low water levels, and such use could cause structural damage to the dam. But officials now say there’s a way to safely use the river outlet works, if needed…Recent studies of the river outlet works have shown that managers can operate the backup tubes continuously in a safe way, said Katrina Grantz, the deputy regional director for Reclamationโs Upper Colorado Region, at a conference in Boulder earlier this month. But the outlets require frequent inspections and maintenance when used continuously, which means that one of the four conduits will routinely be offline. Over the course of a year, the maintenance rotation will result in an effective capacity of about three and a half outlets operating continuously, bureau spokesman Peter Soeth wrote in an email in response to follow-up questions from The Denver Post.
“The river outlet works were never designed to serve as the primary or longโterm release pathway,” Soeth said. “Relying on them continuously would reduce operational flexibility and, over extended periods, could introduce wear that requires more intensive maintenance.”
Hite Marina and boat ramp on what once was the northern end of Lake Powell. Jonathan P. Thompson photo via The Land Desk.
Click the link to read the article on the Grist website (Jake Bittle):
June 23, 2026
Desalination. Pipelines. Cloud seeding. Those are just a few ideas for how the Trump administration should save the desiccated waterway.
The crisis on the Colorado River is simple: The seven Western states that border the essential waterway use more water than it contains. Chronic overuse [ed. allowed and caused by the “Law of the River”] has drained its two largest reservoirs, Lake Powell and Lake Mead, and a two-decade drought cycle has pushed them to the point of collapse.ย
The dream solution to this crisis is an agreement among all involved to use less water. Such a deal would decide who must reduce consumption, which means asking which cities would ban irrigating lawns and washing cars and which farmers would rip up their fields.
This has proven impossible. The states have been trying to work this out since the last dry spell, in 2022, but talks have ended in frustration and name-calling. The main sticking point is between the Upper Basin states, led by Colorado and Utah (along with Wyoming and New Mexico), and the Lower Basin states of Arizona, California, and Nevada. Each side believes the other has a legal and a moral responsibility to cut usage during dry years. The stalemate means the Trump administration must design a schedule of restrictions ahead of a crucial deadline in September. So far, Interior Secretary Doug Burgum has balked at resolving the quarrel.
Instead, the administration is turning to a far less controversial plan: Throw money at the problem. The Interior Department and Congress are pondering a slew of projects that could increase supply โ a reversal of President Trumpโs zeal for cutting federal grants. The seven state governors have sent Washington a โwish listโ of over $50 billion, and several startups have their hands out as well.
Federal investment makes sense given the scale of the problem and the intractable impasse, said Jennifer Pitt, the Colorado River program director at the National Audubon Society and an expert on the governance of the river.
โIt is something easier for people to agree on,โ she said. โThis is a slow moving crisis, but it is a crisis, and we do see the federal funding come in to address crises in other parts of the country. Just because this is a slow moving one doesnโt make it any less worthy.โ
During a Senate committee hearing last week, the Interior Departmentโs top water official, Andrea Travnicek, said the agency has yet to vet the wish list. She didnโt offer a specific funding request, and urged lawmakers to be โthoughtfulโ about how they spend taxpayer money. But senators in both parties seemed to encourage new investments. โThe basin should not be forced to choose between stabilizing the present and negotiating the future,โ said Senator Martin Heinrich, a Democrat from New Mexico.
The possibility of new funding marks a return to the policy of Joe Bidenโs administration. During the last extreme drought in 2022, the Interior Department paid farmers billions to leave their fields fallow, but that money, from the Inflation Reduction Act, has almost run dry.
The difference now is that the roster of proposals is far more ambitious, and some far less certain to bolster the basinโs water supply. They range from desalination plants and desert groundwater pipelines to forest ecosystem restoration.
Here are a few of the major solutions state officials and companies are proposing.
The Claude “Bud” Lewis Desalination Plant in Carlsbad, California. Photo by Robert Marcos
Desalination
As the Colorado River crisis has deepened, some cities in the Southwest have eyed desalination, which extracts salt from sea water. A company called Poseidon Water opened such a plant in San Diego in 2015 and tried for decades to open another in Los Angeles. The wish list to the Interior Department requests as much as $6 billion to build one across the border in the Mexican state of Baja California to supplement Arizonaโs vanishing Colorado River supplies.
The Interior Department also signed an agreement in early June with San Diegoโs water agency that explains how that plant would help. Rather than sending treated seawater inland, states would pay the city to take less from the Colorado River. Arizona stands to lose the most water during drought years, and it would be the most likely to participate in that exchange.
But desalination is expensive, requires enormous amounts of electricity, and state-of-the-art industrial technology. The Poseidon facility cost $1 billion, but San Diego has diversified its water portfolio so much that it no longer needs all the water it must purchase from the plant. Trading water could help it offset some of that cost.
Taming tech and power
Nevada uses less water than any state on the river and has cut usage in Las Vegas by replacing grass with artificial turf. It is now seeking money to slake some of its last thirsty industries: power plants and data centers. These facilities need a fraction of what agriculture requires, but they dominate usage in the Silver State.
The stateโs wish list includes $300 million to retrofit its largest natural gas plant and reduce water consumption by an amount equivalent to more than 3,000 average homes. It also seeks $650 million to install zero-water cooling systems in airports, schools, and industrial facilities. These closed-loop systems, which recirculate the same cooled water or, in the case of data centers, blast hot servers with cold air, have become more popular in Western states amid concerns about the tech boomโs growing thirst.
A cloud seeding generator is located in Grand Mesa. The Colorado Water Conservation Board administers the state’s weather modification program, which permits cloud seeding operations. Colorado Water Conservation Board/Courtesy photo
Squeezing rain from the clouds
Whereas Lower Basin states like Arizona and California can draw from the Colorado Riverโs big reservoirs on demand, northern states at its headwaters only receive the rain and snow that feed it.
These Upper Basin states have been trying for decades to engineer more precipitation, with support from Washington, D.C. It sounds futuristic, but cloud seeding โ spraying salt or silver iodide into clouds, forcing them to release water they might otherwise retain โ has proven fairly effective on a small scale. Utah spends a few million dollars each year doing this, and officials say it could boost annual snowpack by as much as 10 percent.
In addition, a few startups are pitching cheaper and more scalable versions of this technology. Rain Enhancement, a Florida-based outfit, says it has brought about 15,000 homesโ worth of rain to a river tributary in Utah this year; another, Rainmaker, says it can produce 1,000 times that much by 2031. Thatโs enough to close the supply gap on the river. That promise is fanciful, but these companies could secure federal funding from an administration that loves the tech industry.
Mining a hoard of desert groundwater
The West teems with companies that have promised miracles, from building a 300-mile pipeline to tapping a hoard of groundwater in Nevada. But perhaps no project has had a longer and more turbulent history than Cadiz, a proposal, almost 30 years old, to export groundwater from an aquifer in the Mojave Desert.
This has drawn vicious opposition from environmentalists and the late California Senator Dianne Feinstein, who called it a โgrave threatโ to the desert. Cadiz experienced several setbacks during the Biden administration: It lost a federal permit, California ended its pipeline lease, Arizona declined to support it, and its stock price fell to almost zero. But Susan Kennedy, its CEO, says Cadiz is flowing again with a funding agreement from the Interior Department to study exchanges between Cadiz and the Colorado River.
The company still needs to finish two pipelines, one to the Central Valley and another to the aqueduct that carries Colorado River water to California. It also must build a plant to remove contaminants in the water, but Kennedy believes she can have the tap running by 2028.
โThis isnโt a competition; itโs an all-of-the-above situation,โ she said of the situation on the river. That may be so, but the seven states did not include Cadiz on the wish list sent the Interior Department.
Map of the Colorado River drainage basin, created using USGS data. By Shannon1 Creative Commons Attribution-Share Alike 4.0
โColorado River Negotiatorsโ in Cataract Canyon. No clue how the gal in the Earth First! shirt slipped in there? Photo credit: Wild Words
Click the link to read the article on the Wild Words website (Morgan Sjogren):
On Monday, June 15, a new cadre of representatives from seven Colorado River Basin states convened below Cataract Canyon for water negotiations. The open-air meeting was held in an eddy flanked by a thick layer of the Dominy Formation.1ย Silt tumbled into the banks in low runoff conditions as the Upper Basin (Colorado, Utah, Wyoming, New Mexico) and Lower Basin (California, Arizona, Nevada) prepared statements about how to reduce over-consumption of the shrinking Colorado River.
The impromptu Colorado River standoff theater was not real. It was a beach game intended to explain water overallocation. That it still resulted in imaginary litigation speaks loudly to this moment in history. The ability to take this lunchtime activity a little too literally was also because the participants were members ofย Glen Canyon Instituteย and guides forย Holiday River Expeditions. These shenanigans took place in the final hours of a five-day river trip in Cataract Canyon to support GCIโs ongoing efforts for the restoration of Glen Canyon.
The group was certainly highly astute to Colorado River current events to throw down such an intricate dialogue on the spot. Instead of making a list of the very real solutions to distribute Colorado River water to forty million people, the group recognized what is literally standing in the way: seven state representatives who are just as responsible for the looming potential for a Colorado River crash as Glen Canyon Dam.
The basin-wide impasse is by far the most frustrating aspect of explaining the current problems and future management of the Colorado River. The potential solutions are abundant, even obvious. Everyone in the basin needs to use less water.
Other critical changes, like giving all thirty Colorado River-connected tribes a seat at the negotiating table and updating the 1922 Colorado River Compact to actually meet river flows where they are at in 2026 (an average of 12.5 million acre-feet down from 15 million acre-feet a century ago), are long overdue. Not to mention, ensuring the Colorado Riverโs right to flow, in line with the Colorado River Indian Tribeโs legal personhood status for the river under their Tribal law.
Beyond the dam, is the Colorado Riverโs most glaring problem, both concealed and amplified by the water crisis-โis this what democracy is supposed to look like? And what can a citizen of the Colorado River watershed actually do about it?
Despite this broken system, advocacy, especially in the long-term, can move the needle. Until recently, opposition to Glen Canyon Dam was viewed by some as a fringe environmental cult.
Yet Glen Canyon Institute has maintained a constant presence on the front lines of this issue. Since 1996, GCI โembarked upon a multi-year campaign to protect and restore Glen Canyon and reverse the decline of Grand Canyonโs fragile ecosystem.โ The Fill Mead First plan takes a hard look at the long-term realities of keeping two major reservoirs, Powell and Mead, more than half empty. Then, in 2024, the Bureau of Reclamation made an announcement that opened minds (and some hearts) to consider that Glen Canyon Dam is a major part of the current problem.
Through persistent love and devotion of these advocacy efforts, awareness for the recovery of Glen Canyon continues to gain momentum. So does dealing with Glen Canyon Damโs outdated infrastructure which is becoming more mainstream and realistic everyday. In a recent letter,ย the Lower Basin states urged the Bureau of Reclamation to make dam modifications.2
While it is electrifying to be on the pulse of a major change that stands to benefit Glen Canyon and the lower Colorado River, the current negotiation process is still a dystopian nightmare circus.3
Holiday named a new raft Dominy to spur conversation among guests. Some of us felt superstitiously avoidant of this boat during the rapids. Photo credit: Wild Words
Did I mention mud? Our put-in situation at Mineral Bottom on the Green River was enhanced by recent emergency releases and fish management pulse flows from Flaming Gorge Dam. Holidayโs guides insist this put-in is more challenging than the old North Wash Boat Ramp, which is now repaired and fodder for a different story. Photo credit: Wild Words
For some folks, like myself, this shit show is so fascinating that we are keen to immerse ourselves in the muck. However, even if you care deeply for the Colorado River, this can be overwhelming, especially amid the persistant horrors of this era. Naturally, our instinct may be to turn away. This came up during a riverside policy talk on the trip led by GCIโs projects and development manager Anna Penner and me. With so much going on and the constant information overload online, it is important to trust your gut instinct and give yourself space away from the news. Just donโt pull your heart from the Colorado River itself.ย [ed. emphasis mine]
The Colorado River carries hope. The side effects of drought, overallocation, and indecision is the steady return of a free flowing Colorado River and Glen Canyon emerging from a shrinking reservoir. Iโve written before that many of us were too late to experience Glen Canyon before the dam, but we are now right on time to witness its resurrection. Cataract Canyon is an ideal place to experience the changes in motion. From muddy sediment-rich river flows and returning rapids to strongholds of native plants like box elders and seep willows propagating in tributary canyons.ย
Photo credit: Wild Words
For one guest, Tom, these watershed moments for Glen Canyon are major bookends in his life. As a young lad, his family crossed the old Hite Ferry at Dandy Crossing in their station wagon during a road trip. They then drove up the rock-rutted and sandy North Wash, sans road, before it became Highway 95. He also boated on Lake Powell in 1965, before it filled completely, and vividly recalls seeing the fully exposed Hole-in-the-Rock site. Now age seventy seven, Tom and his lifelong friend Paul make time every year to return to the Colorado River with GCI. He has been a member for twenty-one years
Photo of Dandy Crossing: Photo credit: Cindy Stafford
North Wash travel. Credit: Cindy Stafford
This was Aaronโs first Cataract River trip, and a deserved reward for living with my Colorado River obsession. His perpetual and ever-widening smile affirmed how important quality time with the river is, now and always. Post-trip, he told me his favorite part of the trip was โwatching the swirling eddy lines at sunset, while sitting on the beach with the group.โ
Right now, we are all in an eddy. The decisions made, or not, in 2026 will ripple beyond our lifetime. But so will our unrelenting love for the river and the water that sustains life in the West. Impossible dreams, like the EarthFirst! symbolic crack in the dam, may come to life in yet unimagined ways, so long as we do not give up.
Glen Canyon Institute 2026 river trip group photo. Photo credit: Wild Words
Charles L. Bernheimer. Credit: “Path of Light” — Morgan Sjogren
To this, I pause and take another swig of whiskey and muddy water. This spring, I had more than one interview with so-called major environmental groups that sounded more like public relations agents for Glen Canyon Dam and Lake Powell.
Lee continued:
Exhausting? Perhaps. But better tired than apathetic. With tin cups filled with muddy water, this moment asks us to stand with all who have defended the Colorado River in the past and will continue on into the future. Protecting what we love is a journey without end.
To support efforts to restore Glen Canyon and ensure continued water deliveries below Glen Canyon Dam, consider becoming a supporter of Glen Canyon Institute.
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1 The reservoir sediment left behind as Lake Powell drops is not so affectionately named in reference to Floyd Dominy, the former Bureau of Reclamation Director responsible for the creation of Glen Canyon Dam. Some of us have thoughts about this. I am saving these for my next book,ย Riverside,ย to be published by Torrey House Press in 2027.)
by Marcus Reichley, Cronkite News June 10, 2026 Cronkite News offers an audio version of this story using an automated voice created by AI. Errors in pronunciation, pacing and intonation may occur. If you notice an error please contact cronkitenews@asu.edu.
WASHINGTON โ The chair of the Senate Energy and Natural Resources Committee warned Arizona and two other states that rely on the Colorado River on Wednesday that they will lose access to hundreds of millions in conservation aid if they pursue litigation over water rights.
Roughly $354 million is still available under a 2022 climate law. But the funds expire at the end of September.
โStates that choose to sue their fellow basin states over Colorado River operations should not expect Congress to reward that decision with additional federal funding,โ Sen. Mike Lee, a Republican from Utah โ one of the four Upper Basin states, said at the outset of a hearing on the stalemate among the seven states that share the river. โFederal taxpayers should not be asked to subsidize litigation among the states.โ
Glen Canyon Dam holds back Lake Powell on Nov. 2, 2022. States upstream and downstream of the dam have different ideas about how to manage the amount of water released from the reservoir, which has become a key sticking point in ongoing negotiations about the Colorado River’s future. (Photo by Alex Hager/KUNC)
Arizona, California and Nevada have been at odds with Colorado, Utah, New Mexico and Wyoming over how to divide the dwindling water supply when the most recent 19-year deal expires at the end of 2026.
The funds Lee threatened to block are a key element of the Lower Basinโs most recent proposal from May 1, which relies on the funding to incentivize voluntary water conservation as an alternative to mandatory cuts.
The $354 million comes from the Inflation Reduction Act signed in 2022 by President Joe Biden, which set aside $4 billion for drought mitigation and compensation for voluntary conservation. Funds that remain unused when the current fiscal year ends Sept. 30 will revert to the Treasury.
He chastised officials in the Lower Basin states for, among other things, taking out newspaper ads attacking Upper Basin states.
Negotiators appeared to be โpreparing actively for litigation,โ he said โ and in fact, key officials in both camps have told Cronkite News in recent days they are preparing for that possibility.
Congress โwill not be a bystander in this process,โ Lee said, noting that under the Constitution, Congress holds approval authority over any long-term interstate compact.
He also expressed sympathy with the Upper Basinโs stance, warning that any proposal asking those states to absorb greater operational burdens without regard to the riverโs existing legal framework โwill face a difficult path forwardโ in Congress.
The chairman framed the moment as a failure of collective will, cataloguing a string of missed deadlines. โThe basin can no longer afford to wait,โ he said.
After Lee delivered his rebuke, Arizona Sen. Ruben Gallego, a Democrat, pressed the Trump administration from the opposite direction.
Gallego asked Andrea Travnicek, assistant secretary for water and science at the Department of the Interior, how the department plans to weigh Arizonaโs economic stakes as it finalizes its decision.
โThe Colorado River is a lifeline for Arizona,โ Gallego said, noting the state is home to the most advanced semiconductor manufacturing hub in the Western Hemisphere and that the success of its industries are essential to the nation.
โThe technological industries, the domestic food supply, and energy security are all top priorities for the United States, including the presidentโs agenda,โ he said.
Travnicek said the department cannot accept either the May 1 proposal from the Lower Basin nor the latest Upper Basin proposal as they currently stand.
โWe have some concerns and areas where we think that there should be adjustments,โ she said.
She confirmed that the Interior Department is coordinating with the Energy Department and U.S. Department of Agriculture, among other agencies. She said an interagency water subcabinet meeting will be held Thursday.
The hearing laid bare the tension that has made a seven-state deal so elusive, with senators from both basins on hand.
Travnicek fielded pressure from both directions without committing to either.
The stakes are straightforward and very high.
Decades of drought have pushed water levels to dangerously low levels even as demand and population grow. The river now provides barely half the amount of water each basin has been legally entitled to draw.
โDelay carries its own consequences,โ Lee said, โand the basin can no longer afford to wait.โ
THE NEWS:Sen. Mike Lee, the ultra-MAGA Utah Republican, failed once again to diminish public lands protections when his bid to use the Congressional Review Act to revoke Grand Staircase-Escalante National Monumentโs management plan expired before getting a vote.
THE CONTEXT: This spring, Lee and Rep. Celeste Maloy, also a Utah Republican, introduced a joint resolution of disapproval in both houses of Congress aimed at repealing the 2024 management plan. That started the clock ticking on a 60-day time-limit for a simple majority vote to overturn the plan. The deadline passed on June 11 without any action, meaning that any effort to toss the plan now would be subject to the Senate filibuster, so would need 60 votes to pass โ a highly unlikely prospect.
Had the resolution passed, the national monumentโs management would have reverted back to the weak and inadequate 2020 Trump I-era plan, which allowed more grazing, more damaging โvegetation management,โ and more off-road vehicle use. Plus the 2020 plan only covered the 1 million acres left in the national monument after Trump removed about 900,000 acres from its boundaries, meaning almost half of the national monument would in a sort of management limbo.
This would have sown chaos and confusion, yet it wouldnโt have diminished the national monument or the protections that were baked into the establishing proclamation. The monument boundaries would have remained intact, along with the prohibition on new oil and gas drilling, mining claims, and other energy development.
Nevertheless, it clearly was intended as an attack on the national monument and the attendant protections, which have been a sore spot for Utah sagebrush rebel-leaning politicians since Bill Clinton established it under the Antiquities Act 30 years ago this September. What Maloy or Lee hoped to actually achieve with the attack is a little less clear, even if it had hit its target.
Maloy likely was trying to brush up on her anti-federal-land-management credentials before what could be a bruising primary. Her challenger is notorious sagebrush rebel Phil Lyman, who led an illegal OHV-ride down the archaeologically rich Recapture Canyon in 2014 to protest what he called โfederal overreach.โ
So far, Maloy is winning the fundraising race by a healthy margin. Utah Political Watchreports that the Defend our Values Super PAC run by former Rep. Chris Stewart, R-Utah, just donated $900,000 to Maloyโs campaign. The American Conservation Coalition PAC, which says it โhelps elect leaders who champion American energy dominance, environmental conservation, and cutting-edge innovation,โ has spent over $150,000 in support of Maloy, as well. Maloy isnโt exactly living up to the conservation part of that, but Iโm not sure the PAC folks care too much about it, either.
And then thereโs Lee. Sometimes it feels as if heโs taking up the tasks Project 2025 guided the Trump administration to execute, but that the administration has backed off from because of how deeply unpopular they have turned out to be. Itโs almost as if the administration is tasking Lee with feeding some red meat to the MAGA base, but also is setting him up to fail.
Rock climber in Unaweep Canyon, Colorado (not a wilderness area). Jonathan P. Thompson photo.
THE NEWS: The U.S. Interior Department is launching a โreviewโ of rock climbing management and wilderness study area policies. On June 15 it opened the 60-day public comment period on its proposals to establish โa consistent approach to recreational rock climbing management across designated wilderness areas,โ and to evaluate whether โexisting wilderness study areas and lands with wilderness characteristic policies should be updated, clarified, or revised.โ
THE CONTEXT: Any time the Trump administration decides to โreviewโ something, it pays to be wary, since more often than not the review leads to the evisceration of some sort of environmental protection. They tend to couch it in euphemisms, however, such as this bit from an Interior press release: โโฆ Interior is focused on expanding outdoor recreation opportunities, removing unnecessary barriers to access, and use, and managing public lands in a way that benefits the American people.โ
Wilderness areas are designated by Congress and are governed by a set of specific rules that canโt be altered by the administration. However, the question of whether installing fixed climbing bolts and anchors is permitted or not is vague and has shifted over the years (what is clear is that power drills cannot be used to install them). The administration is looking to clear this up, and to allow fixed anchors in wilderness areas as long as they follow certain guidelines.
Wilderness study areas share many of the same qualities and protections as wilderness areas, but have not been designated as such by Congress. In 1976, Congress tasked the BLM with identifying potential wilderness areas within its domain and make recommendations regarding them. Those that were identified and fit certain criteria but not designated became wilderness study areas, or WSAs. There are currently 491 wilderness study areas covering over 11 million acres. Look at a map of areas that have large swaths of BLM land โ particularly in Utah โ and youโll almost certainly find a few.
The Federal Land Policy Management Act directed the BLM to manage the WSAs “in a manner so as not to impair the suitability of such areas for preservation as wilderness”and prevent “unnecessary or undue degradation.” In other words, you couldnโt build a permanent road through a WSA because that would preclude it from being designated as a wilderness area later.
This leaves room for agency interpretation. The current BLM policy, carried out in accordance with a 2012 manual, is to โcontinue resource uses on land designated as WSAs in a manner that maintains the areaโs suitability for preservation as wilderness.โ Under that policy, the agency almost certainly would not permit a road through a WSA, because that would preclude it from being designated as a wilderness area later. And, according to the memo, it most likely would not allow motorized or mountain bike use in a WSA.
The current administration is unlikely to get away with allowing permanent roads in WSAs. However, given its language about removing barriers to access, one can expect it to apply a broader and more permissive interpretation of the non-impairment standard to its policies. This might mean allowing motorized vehicle or mountain bike use within WSAs on existing trails, for example, or even some logging or small-scale mining, so long as the agency officials could convince themselves that it would be cleaned up later.
Finally, the BLM also has a policy for managing lands with wilderness characteristics that are not WSAs or designated wilderness areas. The administration is reviewing this policy, as well.
Interior announced all of these policies in one press release, but you need to comment on them individually. Hereโs how:
For the fixed anchors and other climbing management changes in wilderness areas, go to theย Federal Register pageย and follow the instructions, or go directly to theย regulations.gov pageย and click on โComment.โย
For changes to wilderness study area management, go to theย Federal Register page, and read the instructions, or go directly to theย regulations.govย page and click on โComment.โย
For changes to lands with wilderness characteristics management, go to theย Federal Register page, and follow the instructions, or go directly to theย regulations.gov pageย and click on โComment.โ
Colorado River “Beginnings”. Photo: Brent Gardner-Smith/Aspen Journalism
๐ Colorado River Chronicles ๐ง
Guest Commentary: A Fair Allocation for the Colorado River
by Levi Tenen
This summer is the last chance for seven Western states to allocate the Colorado River voluntarily before the federal government steps in1.ย Gridlock persists: Lower Basin states (California, Arizona, and Nevada) have offered to reduce their water usage the most, but they believe that Upper Basin States (Colorado, New Mexico, Wyoming, and Utah) ought to reduce their usage as well if the region dries up too much.2ย The Upper Basin states reject this proposal, refusing to reduce the amount of water that was allotted to them under previous agreements.3ย The federal government has proposed solutions of its own, all of which seem to favor the Upper Basin states.4
The debate raises fundamental questions: how should resources be allocated in times of scarcity, and do past agreements matter today? From my research in ethics, I think there is an answer, and one that has not been noticed by others. Justice demands that Upper Basin states give up some of their allotted, promised water, but Lower Basin states must greatly limit their water usage andโthe new ideaโLower Basin states oughtย to payย for the extra water they receive.5
To see why, consider a thought experiment from philosopher Jeremy Waldron6: Imagine you and I own ranches in an arid region. We drill wells on our respective properties and enjoy plentiful water. Good times come to an end, however, when a drought sets in and my well runs dry. Unable to relocate, I am stuck in a dire circumstance. Due to the geography of the area, however, you continue to have a surplus of water. What, if anything, do you owe me? Without anyone else around to help me, are you obligated to share your water? The answer is yes, to an extent. It would be wrong, for instance, if you prevented me access to your well just to let the water go unused, leaving me to die. It would also be wrong if you kept me from your well so that you could build a nice new pool, or even so that you could increase your wealth by adding many more head of cattle, all while I perish nearby. Put simply, in times of scarcity and desperation, justice limits a personโs property rights. Justice will never require you to endanger yourself, but more modest sacrifices can become obligatory.
What most people miss, however, is that obligations often fall onto the recipients of aid. Return to the above case. First, even though water is scarce, other resources may not be. So, while you are obliged to give me water, if I have money, labor, or something else to give in return, I ought to do so. It would be unfair, after all, for me to hold onto large amounts of disposable wealth and take your water, leaving you altogether worse off and me only better off.
Secondly, even though I receive water from you, I cannot use it however I want. For, I do not have the right to an endless amount of your water. The water you owe me is only for the basic conditions of life, not for wasting away or for self-serving, economic growth. So, I mustnโt add more cattle to my ranch or build a pretty fountain in my courtyard. Indeed, if scarcity persists, I need to reduce my water consumption greatly, scaling back my ranch operations. To do otherwise would be to limit your future opportunity unjustly.
Carried over to the Colorado River, this much then seems clear: Upper Basin states ought to give some of their unused water to Lower Basin states, even though they all previously agreed to allocate that water to the Upper Basin. The scarce and desperate times limit the past agreements, particularly because the scarcity was unforeseen. And make no mistake: the Lower Basin statesย areย facing dire times. Tens of millions of people in those states depend on the river for drinking water.7ย Moreover, 70% of the water goes to food production, with the majority going towards crops in Lower Basin states.8ย Running out of water is an existential threat to the cities and peoples in the Lower Basin, and it is a threat to food security the nation over.9
However, the Lower Basin states ought to purchase the water from Upper Basin states and they need to minimize their burden on those states, even if that means ceasing new housing developments and industrial projects. Perhaps if the Lower Basin states add these conditions to their offer, negotiations will move forward and the Upper Basin will accept their share of the burden: sending some of their allotted water downstream.
Levi Tenenย is an Assistant Professor of Philosophy at Virginia Wesleyan University. He grew up in Arizona and conducts research at the intersection of Ethics, Political Philosophy, and Environmental Law.
Click the link to read the article on the Getches-Wilkinson Center website (Jack Schmidt,1 Anne Castle,2 Eric Kuhn, 3 Kathryn Sorensen,4 Katherine Tara5
June 18, 2026
In the next few weeks, we will share a few graphs and charts that we find informative in understanding todayโs water supply crisis on the Colorado River. This short paper concerns the present status of reservoir storage.
IN BRIEF
In 2026 and for only the third time in the 21st century, there was no accumulation, and no recovery, of total Basin live storage6 during the snowmelt season. Nor was there any accumulation or recovery of total live storage in Lake Powell and Lake Mead during the 2026 snowmelt season. Total Basin live storage (hereafter, total Basin storage) is all the water available in the Colorado River Basinโs reservoir โsavings accountโ and stored in reservoirs within the watershed.7 On June 1, total Basin storage was 22.94 million acre feet (maf), only 1.62 maf above the previous minimum of March 20238 and less than 2 years supply at the current rate at which water is consumptively used or lost in the Basin. Total Basin storage will almost certainly drop to less than the previous record minimum by March 2027.
THE PRESENT CONDITION
On June 1, 2026, total Basin storage in 46 reservoirs in the Colorado River Basin was 22.94 maf, 9 39% of the content of those same reservoirs in late August 1999, the last time those reservoirs were relatively full.10 On June 1, Lake Mead held 33% of the Basinโs active storage, 32% was in 42 reservoirs upstream from Lake Powell, 25% in Lake Powell, and 10% in Lake Mohave and Lake Havasu. The combined live storage in Lake Mead and Lake Powell was 28% of the total live storage of those two reservoirs in late summer 1999.11
Why Total Basin Storage?
Most policy analysis of reservoir storage in the Colorado River Basin focuses on Lake Powell and Lake Mead or, alternatively, on all federally managed reservoirs in the Basin. These reservoirs are the focus of ongoing negotiations among the Basin states and will be impacted by impending management decisions by the federal government. On June 1, 89% of total Basin storage was held in 12 federally managed reservoirs.12 Slightly more than 60% of live storage upstream from Lake Powell was held in 8 federally managed reservoirs.
Total Basin storage is the total amount of water stored in reservoirs in the Colorado River watershed. In addition to the 12 federally managed reservoirs, Basin storage includes federal project reservoirs managed by other entities and non-federal reservoirs managed by municipal water providers and water conservation and conservancy districts. Some of the non-federal reservoirs act as forebays that facilitate trans-basin diversions to the Colorado Front Range or Utah’s Wasatch Front. Water stored in these non-federally managed reservoirs is not subject to current or proposed federal operating guidelines. In the Upper Basin, however, water stored in the non-federally managed reservoirs is one determinant of total Upper Basin consumptive use.Therefore, the status of storage in all the Basin’s reservoirs is an indicator of the overall condition of the Colorado River reservoir system and its ability to buffer continued declining inflow. Transfer of water from one reservoir to another, such as the on-going transfer from Flaming Gorge Reservoir to Lake Powell, does not a๏ฌect total Basin storage. Although such management policy is critical to protecting dam infrastructure and maintaining realistically accessible storage in Lake Powell, 13 such policy merely shifts the location of the Basinโs deck chairs. What matters is whether the ship is sinking. [ed, emphasis mine]
Accumulation Period And Depletion Period
In terms of reservoir storage, we have previously distinguished two periods of the year โ the period of reservoir rise (i.e., accumulation period) and the period of reservoir decline (i.e., depletion period).14 In terms of total Basin storage, the 2-3 month long accumulation period typically begins in mid-April, although it has begun as early as mid-March (Supplemental Table 1). The accumulation period typically ends in early July but has sometimes ended in early June and as late as early August. In rare cases, as discussed below, there has been no accumulation. The depletion period typically occurs from mid-summer until the following spring and lasts 9-10 months.
BASINWIDE STORAGE SHOWS CONTINUED DOWNWARD TREND DESPITE PERIODIC WET WINTERS
Basin Reservoirs in Spring 2023 Were at an Unprecedented Low.
Figure 1 shows total live storage in 46 reservoirs during the past 3.5 years. The minimum amount of water in those reservoirs was on March 14, 2023, immediately before snowmelt began from the winter 2022/2023 snowpack. At that time, the Basinโs reservoirs only held 21.32 maf. Total Basin storage had not been that low since May 1965 when the newly constructed Colorado River Storage Project reservoirs were beginning to fill.15
Figure 1. Graph showing total storage in 46 reservoirs in the Colorado River Basin since January 1, 2023. The minimum amount during this period occurred in mid-March 2023, when total storage was less than at any time since late May 1965. The amount of increase or decrease in total Basin storage during the accumulation and depletion periods of each year are shown. Updated to June 14, 2026.
Snowmelt in 2023 was unusually large for the 21st century, and reservoir storage significantly recovered. The 8.38 maf increase in reservoir storage during the 2023 accumulation period was the second largest single-year increase of the 21st century and resulted from the second largest unregulated inflow to Lake Powell of the 21st century.16 The Basinโs reservoirs were subsequently drawn down by only 2.15 maf between July 13, 2023, and April 17, 2024, the smallest depletion period since at least 2010. Unregulated inflow to Lake Powell in Water Year (WY) 2024, primarily due to the 2024 snowmelt season, was typical of the 21st century,17 and the Basinโs reservoirs recovered 2.45 maf. Because Basin reservoir recovery exceeded the drawdown during the preceding 2023-2024 depletion period, Basin storage reached its highest recent peak at the beginning of the 2024-2025 depletion period.18
The gains of 2023 and 2024 were subsequently lost between summer 2024 and today, because depletion exceeded accumulation. In spring 2027, total Basin storage is likely to be less than it was in March 2023.
In early July 2024, the multi-year downward turn of reservoir storage began. The Basinโs reservoirs were depleted by 3.60 maf during the 2024-2025 depletion period, more than 1 maf greater than the preceding accumulation. Unregulated inflow to Lake Powell in WY2025 was the fourth driest of the 21st century19, and the Basinโs reservoirs only accumulated 0.55 maf, a small amount. Despite hard-fought, politically contentious, and economically expensive system conservation and assigned water e๏ฌorts as well as a wet fall in the southern part of the Basin, the Basinโs reservoirs were depleted by 4.00 million af during the 2025-2026 depletion period.20 The most probable unregulated inflow to Lake Powell in WY2026 is forecast to be 3.40 maf, the second lowest inflow of the 21st century.21 There will be no accumulation this year.22
As of June 1, 2026, the Basinโs total storage was only 1.62 maf more than total storage at its record-breaking low in March 2023. It is likely that Basin storage in spring 2027, before the 2027 accumulation season begins, will be lower than at any time since 1965, because depletion during the 2016-2027 period will probably exceed 1.62 maf.23
The depletion of reservoir storage that began in summer 2024 occurred despite a significant e๏ฌort to reduce Lower Basin water use. Water use in California and Arizona in Calendar Year (CY) 2025 was the lowest and third lowest, respectively, since CY2010, and use in those two states in CY2024 was the fourth lowest since CY2010. Water use in Arizona in CY2026 is forecast to be the lowest since CY2010. Upper Basin use in CY2024 was typical for the period CY2010-CY2024; Upper Basin use data for CY2025 are not yet available.
Despite each springโs snowmelt inflow, each part of the Basinโs reservoir system that stores water โ Lake Mead, Lake Powell, and the reservoirs upstream from Lake Powell โ has declined since their recent maximums in summer 2024.
Lake Mead typically peaks between January and March and then declines until August (Fig. 2). This pattern contrasts from that of Lake Powell and of reservoirs further upstream. The winter peaks of Lake Mead in 2024, 2025, and 2026 have been progressively lower each year, and the summer minimums have also been lower each year. In 2026, Lake Mead peaked on February 28 and lost 1.23 maf between March 1 and June 1 and will probably continue to drop during the rest of summer. On June 1, 2026, Lake Mead stored only 0.34 maf more than its recent minimum of January 1, 2023.24
Figure 2. Graph showing live storage in Lake Mead, Lake Powell, in 42 reservoirs upstream from Lake Powell, and in Lake Mohave and Lake Havasu since January 1, 2023. Updated to June 14, 2026.
In the last two years, Lake Powell has dropped more than other reservoirs. Lake Powell lost more than 4 maf of stored water since early July 2024. In 2026, Lake Powell steadily declined from the beginning of the year until May 7 and stabilized following the onset of snowmelt runo๏ฌ, increased releases from Flaming Gorge Reservoir, and reduction of releases at Glen Canyon Dam.25ย On June 1, decline in Lake Powell resumed. The total live storage in Lake Mead and Lake Powell on June 1 was 13.38 maf, significantly less than the capacity of either individual reservoir.
Total storage in 42 reservoirs upstream from Lake Powell also declined during the past 3.5 years. Those reservoirs rise every spring and typically recover until sometime in June or July. Presently, many reservoirs in the headwaters of the upper Colorado River are still rising, 26ย as are Fontenelle and Big Sandy in the upper Green River Basin. However, total reservoir storage in the Gunnison and Green River watersheds is already at its lowest of the year. Total reservoir storage in the San Juan River watershed has been declining since mid-April but is not yet at its lowest point for the year.
OVERALL TRENDS IN BASIN STORAGE DEMONSTRATE RATCHET EFFECT IN FULL FORCE
In the context of the entire 21stย century, Basin storage significantly dropped during two multi-year dry periods, 2000-2004 and 2020-2022 (Fig. 3).27ย In other years, the bounty of snowmelt was temporarily stored but completely consumed in subsequent years. The resulting pattern for the 21stย century is jagged, but the overall trend in storage has been relentlessly downward, because Basin average uses and losses have consistently exceeded average inflows. We call this pattern the Ratchet E๏ฌect, because a rachet is a mechanical device that only allows movement in one direction, in this case towards ever declining Basin storage and deeper into crisis.28 Despite laudable e๏ฌorts to maintain balance through system conservation and assigned water programs, the ship continues to sink.
Figure 3. Graph showing live storage in the Basinโs reservoirs since January 1, 1999. We call this pattern the Ratchet E๏ฌect of declining Colorado River Basin storage in the 21st century. Updated to June 14, 2026.
SUPPLEMENTAL TABLE
Supplemental Table 1. Beginning and end dates of the reservoir storage accumulation period for the entire watershed and for Lake Powell plus Lake Mead. The volume in storage for each date is indicated. The value at the beginning of the accumulation period is the minimum storage at the end of the preceding 9-10 month depletion period. Numbers in bold brackets are the accumulation, in millions of acre feet. Tan shading indicates years that were among the five driest of the 21stย century. Blue shading were years that were among the five wettest of the 21stย century.
1ย Center for Colorado River Studies, Utah State University, former Chief, Grand Canyon Monitoring and Research Center.
2ย Getches-Wilkinson Center, Univ. of Colorado Law School, former US Commissioner, Upper Colorado River Commission, former Assistant Secretary for Water and Science, US Dept. of the Interior.
3ย Retired General Manager, Colorado River Water Conservation District.
4ย Kyl Center for Water Policy, Arizona State University, former Director, Phoenix Water Services.
5ย Sta๏ฌ Attorney, Utton Transboundary Resources Center, University of New Mexico.
6ย Live storage is all water stored in reservoirs that can be vacated by gravity, no matter how di๏ฌcult or slow would be the process of withdrawing that water. Active storage is all water stored above minimum power pool, and inactive storage is water stored between dead pool and minimum power pool. These definitions di๏ฌer from those used in previous papers that we have written. In past papers, we used the term active storage to refer to what we now refer to as live storage. This change is made to be consistent with terminology of Bureau of Reclamation.
7ย We do not consider reservoirs that store Colorado River water but are located beyond the watershed boundary, such as Horsetooth or Twin Lakes Reservoirs in Colorado.
8ย As discussed below, the March 2023 minimum was the lowest total Basin storage since May 1965 when the reservoirs of the Colorado River Storage Project were beginning to fill.
10ย The total amount of water in the 46 reservoirs on August 24, 1999, was 59.52 maf. The only previous periods when total Basin storage exceeded that amount were for ~4.5 months between June 9 and October 24, 1983, and during parts of summer 1984, 1985, 1986, and 1998 The largest amount of live storage in these reservoirs was 63.61 maf on July 15, 1983.
11ย Total live storage in Lake Mead and Lake Powell peaked at 47.70 maf on September 19, 1999, and was 13.38 maf on June 1, 2026.
12ย The contents of these 12 reservoirs are reported in Reclamationโs 24-Month Study reports and include Taylor Park, Blue Mesa, Morrow Point, Crystal, Fontenelle, Flaming Gorge, Vallecito, and Navajo that are upstream from Lake Powell, as well as Lake Powell, Lake Mead, Lake Mohave, and Lake Havasu. The contents of the latter two reservoirs, as well as Morrow Point and Crystal, do not change much during the year.
15ย The 12 federal reservoirs had 18.93 maf of active storage on March 14, 2023, and were at their lowest since early May 1965.
16ย The largest single-year accumulation of Basin storage was in 2011, when storage increased 8.78 million af. Unregulated inflow in WY2011 was 15.97 maf, and natural flow in WY2011 was the largest of the 21stย century (WY2011 = 20.16 million af). Unregulated inflow to Lake Powell in WY2023 was 13.42 million af, and natural flow of the Colorado River in WY2023 was 17.41 million af, the third largest of the 21stย century.
17ย Unregulated inflow was 7.98 million af, 2% less than the average for the 21stย century (2000-2026). Natural flow at Lees Ferry in WY2024 (11.88 million af) was 1.5% less than the 21stย century average.
18ย Total Basin storage was 29.99 million af on July 6, 2024, the largest peak since mid-January 2021.
19ย WY2025 unregulated inflow was 4.69 million af. Natural flow at Lees Ferry was 8.50 million af, the fifth driest of the 21stย century.
20ย J. C. Schmidt et al. 2026. Lake Powell and Lake Mead are moving in opposite direction โ what gives? https://qanr.usu.edu/coloradoriver/news/blog-2026-2-9. Here, we are arbitrarily ending the 2025-2026 depletion period on June 1, 2026, when the 2026-2027 depletion period begins.
21ย June 24-Month Study.
22ย The only other years in the 21stย century when there was no accumulation of total Basin storage were 2002 and 2012.
23ย The median drawdown of the Basinโs reservoirs since 2010 during each depletion period has been approximately 3.6 maf, and the smallest previous depletion was 2.15 maf. There have only been six years when Basin-wide reservoir depletion was less than 3.0 million af: 2023-2024 (2.15 million af), 2022-2023 (2.19 million af), 2014-2015 (2.61 million af), 2016-2017 (2.75 million af), 2019-2020 (2.82 million af), and 2011-2012 (2.93 million af).
24ย Active storage in Lake Mead on January 1, 2023, was 7.32 million af.
25ย Lake Powell only gained 0.12 million af between May 7 and May 31.
26ย These reservoirs include Granby, Dillon, Ruedi, Green Mountain, Taylor Park, and Ridgway.
27ย J. C. Schmidt et al. 2023. The Colorado River water crisis: its origin and the future. WIREs Water 10.1002/wat2.1672.
Anglers flock to Flaming Gorge Reservoir on Memorial Day weekend. Kokanee salmon and trophy-sized lake trout draw tens of thousands of visitors to the reservoir each year, supporting a recreational economy in southwestern Wyoming and northeastern Utah. (Hannah Romero/Green River Star)
Click the link to read the article on the WyoFile website (Dustin Bleizefferย andย ย Hannah Romero):
June 4, 2026
As campers with boats flocked to Buckboard Marina at the start of Memorial Day weekend, Tony Valdez was busy issuing refunds and repairing broken boat ramps. One older Green River man, who walked with two canes, left with his money refunded for the season after discovering he could not safely make it down to the boat slip. Due to dropping water levels at Flaming Gorge Reservoir, the ramp is now buckled, angling up and down like a pitched roof.
โItโs devastating, not just to me, itโs all the marina owners,โ said Valdez, who owns Buckboard Marina, south of Green River. โItโs a big loss, and this is a big loss to the community.โ
Along the cliffs and shoreline, darker and lighter lines of rock and sand trace the waterโs elevations, showing where the water hits when the marina is full, where it hovered this spring and where it dropped after an initial โflush.โ Valdez estimates the reservoir has dropped by 7 feet since April.
But thatโs not the worst of it. Valdez anticipates that by the end of this summer, the reservoir will be as low as itโs ever been.
Why the drain?
For all its charm as a beloved recreation spot and its utility as a local economic driver, Flaming Gorge Reservoir owes its existence to a legal compact that essentially regards it as an insurance policy in times of drought.
Its primary purpose, according to federal officials and Colorado River Compact scholars, is to serve as a backup water bank to help maintain the Colorado River system. Specifically, Flaming Gorge and a handful of other reservoirs in the upper Colorado River Basin states of Wyoming, Colorado, Utah and New Mexico are key to ensuring a minimum flow of 7.5 million acre-feet of water, on a running 10-year average, at Lees Ferry just downstream of Lake Powell, a massive man-made reservoir straddling the Utah-Arizona border.
Today, after more than 20 years of drought intensified by human-caused climate change, the Colorado River is in crisis, putting at risk massive agricultural irrigation operations that consume about 80% of its water. This past winter saw historically low snowpack in the Upper Colorado River Basin โ a primary source for the riverโs flow.
This annotated 1963 photo of the Glen Canyon Dam shows the minimum level of Lake Powell, below which would render the dam’s power generation components inoperable. (Bureau of Reclamation)
Combined with record heat in March, Lake Powell is at risk of dropping below Glen Canyon Damโs โminimum power pool,โ the point at which it can no longer produce hydroelectric power, according to water officials. If it falls even lower, the dam, which holds back Lake Powell, could be at risk of structural damage or unable to allow water to flow downstream.
The situation triggered a drought response operations agreement that calls for restricting releases from Lake Powell and an order to draw extra water from Flaming Gorge upstream. In total, water managers will release about 1 million additional acre-feet of water from Flaming Gorge in April 2026 through April 2027.
โThese actions are expected to lower [Flaming Gorgeโs] elevation by roughly 35 feet over the next year to approximately 59% of capacity,โ the bureau said in April.
โThe elevations are real critical,โ Valdez said. At Buckboard Marina, high water has hovered between 6,030 and 6,040 feet above sea level over the past 50 years, he said. Dropping 35 feet could expose 400 feet of shoreline in some places, including marinas with boat ramps, he said.
Dropping water levels in the Flaming Gorge Reservoir by 35 feet could expose over 400 feet of shoreline in some places, including marinas with boat ramps, according to Buckboard Marina owner Tony Valdez. (Hannah Romero/Green River Star)
If the water elevation continues to retreat, it could reach a point where boats canโt be brought in or out.
โBy September, this thing is going to be down to 6,000 feet. Thatโs it,โ Valdez said. โNext year, if it goes below that, thereโs no more marina here.โ
Setting a course
Water managers set a course in April to โstabilizeโ Flaming Gorgeโs outflow to about 1,100 cubic feet per second, representing the rate needed to achieve the 1 million acre-feet of extra water release, according to the bureau. On top of that, there are two previously planned โflushesโ from the Gorge. The first, in early May, temporarily increased the outflow to about 8,600 cubic feet per second to enhance the proliferation of razorback sucker larvae, and a second 72-hour flush beginning June 8 will temporarily increase the outflow to about 4,600 cubic feet per second to discourage the proliferation of smallmouth bass.
So far, Flaming Gorge has dropped from about 3 million acre-feet in April (or 82% capacity) to about 2.83 million acre-feet as of May 25. Meanwhile, water managers warn, โThis release plan is subject to change depending on evolving river conditions and weather forecasts.โ
Click to enlarge: This chart depicts water storage levels at Flaming Gorge Reservoir. (Bureau of Reclamation)
Those evolving conditions include forecasted versus actual flows from streams feeding the system. For example, those โunregulatedโ or natural flows are forecasted to be much lower than normal: 70,000 acre-feet of water into Flaming Gorge during May (28% of average), 175,000 acre-feet in June (45% of average) and 84,000 acre-feet (42%), according to the Bureau of Reclamation.
Water officials caution that water flowing from the Flaming Gorge Dam could change, and that those recreating on the Green River below should monitor release schedules at this website. The bureau also noted, โWater will be colder than usual and will run high and swift during periods of elevated releases.โ
Water floats recreation economy
Buckboard Marina went through a similar drop in water a few years ago. The Bureau of Reclamation began pulling water from the Flaming Gorge in 2021, and by 2022, the marinaโs water level was at an all-time low. While the reservoir recovered somewhat in 2023 thanks to a good year for moisture, Valdez said, the reservoir has continued to decline since then.
Buckboard Marina owner Tony Valdez stands next to a stake that indicates the extent of lowering water levels at Flaming Gorge Reservoir Sept. 26, 2022. (Dustin Bleizeffer/WyoFile)
Kokanee salmon and trophy-sized lake trout draw tens of thousands of visitors to Flaming Gorge each year, supporting a recreational economy in southwestern Wyoming and northeastern Utah. But as the lake is drawn down, water recedes from shallow shorelines and fish are forced into a smaller space, essentially shrinking the fishery toward the dam side of the reservoir.
One of Valdezโs primary concerns is that water levels could drop below the ideal elevation for kokanee to spawn in the reservoir.
โI think people donโt realize the economic value it brings,โ he said. โIt is a big deal when you lose your kokanees.โ
Valdez has already lost money this year just from people being concerned about water levels. He estimated that the marina lost roughly $30,000 in cancellations when discussions about releasing water began as early as February.
Other problems also start to arise as the water drops. The marina will lose access to drinking water at 6,010 feet, below their floating pump that supplies potable water. Itโs only 7 feet away from the current level.
โThatโs scary to me,โ Valdez said.
The marina can truck in water from Rock Springs, but it costs about $1,200 to bring in 8,000 gallons, which lasts about two weeks. For Valdez, it feels โasinineโ to lose water at a marina.
โWhy would we run out of water on a lake?โ
Water levels also impact the location of the fuel dock and fuel lines extending to it. If the reservoir sinks too low, it could cost up to $100,000 to adapt, he said.
Drawing down water levels quickly โ as happened in early May โ can damage marina structures. After the 2021-22 drawdown, Valdez said he spent about $130,000 in repairs.
Buckboard Marina owner Tony Valdez shows a boat ramp that now angles up steeply before dropping down after the reservoir’s water levels dropped several feet. (Hannah Romero/Green River Star)
This time, heโd hoped to keep up. He and a group of 10 men worked to keep pace with the dropping water levels, repairing and modifying ramps. It wasnโt enough.
โThe drop was dramatic enough to break all of our approaches, our bridges, our stuff, so it broke a lot of the welds, broke a lot of the structured steel, because it just vertically dropped too fast for the weight,โ he said.
When structures go from water to land that quickly, the weight is too much for them to hold up, Valdez said.
โIโm re-rigging everything, and this is only a temporary fix โtil September, because thatโs when the season ends.โ
The marina should remain mostly functional until the summer season ends, he said. But with extra water releases set to continue through the winter, the lake could drop another 10 to 12 feet by the spring.
โWeโre getting into numbers that I donโt even want to talk about,โ Valdez said. โI mean, thereโs no marina.โ
Whatโs next?
โThe guy with the boots on the ground that watches this every day,โ as Valdez describes himself, can see what water managers canโt, and he questions whether official numbers and estimates match reality.
โItโs hard to watch this when itโs out of your hands.โ
Valdez is critical of the 1922 compact, doubting the legal rationale of sending Wyoming water to places like Arizona. He also wonders about the role of local industries โ refineries, coal-fired power plants and trona mines โ that use large amounts of water, and the idea of adding more industrial facilities that require even more water, like data centers.
โWe donโt have the water to give away,โ Valdez said.
Aerial photo of the Glen Canyon Dam near Page, Arizona. Photo by Alexander Heilner/The Water Desk, with aerial support by LightHawk.
Bryan Seppie, general manager for the Joint Powers Water Board for Sweetwater County, Rock Springs and Green River, agrees. โThe poor hydrology this past winter has affected most all water users in some form or another,โ he said.
His board monitors the Colorado River system closely. Just upstream from Flaming Gorge, the Bureau of Reclamation reduced releases from Fontenelle Reservoir due to poor inflow projections. Although the water will still be enough for river users, the low summer flows will have a negative impact.
โLow river flows typically result in higher water temperatures, which generally leads to higher levels of moss/algae and overall lower water quality,โ Seppie said in an email.
What about recovery?
Valdez wonders: Whatโs the plan to allow the reservoir to bounce back?
Wyoming State Engineer Brandon Gebhart and his staff have warned for months that although Flaming Gorge can serve as a backup to Lake Powell this year, it drains the Gorgeโs ability to play a similar role next year, or the year after. It takes time for Mother Nature to replenish the bank.
โThe big thing that nobody is talking about is the recovery,โ Valdez said. โWhere is the recovery of our water?โ
This yearโs drain on Flaming Gorge began at a low point. The reservoir hadnโt fully recovered after the last major pull. Rather than starting at a high point of 6,040 feet, the marina was at about 6,024 feet, he said.
โThereโs no recovery plan,โ he said. โWe canโt just let them keep taking. I mean, whereโs this end?โ
Rings line the shore of Flaming Gorge Reservoir, showing the drop in the water level at the popular recreation spot that spans the Wyoming-Utah border. (Hannah Romero/Green River Star)
If there is no grace period for the reservoir to replenish and officials want to take even more in the near future, starting from such a low elevation point, it will be โdevastating,โ Valdez said.
โThe water going down is not the end of the world, itโs the recovery in a timely manner that really matters,โ he said. โI canโt preach recovery enough.โ
Watching people come to the marina and seeing how happy they are still motivates Valdez to keep going. Despite the drawdown, thereโs nowhere else heโd rather be.
โWeโre not going to run away. Weโre not going to give up,โ he said. โWeโre going to fight.โ
A rainstorm over southern Colorado. Photo: Abby Burk
Click the link to read the article on the Audubon website (Abby Burk):
May 7, 2026
Drought in Colorado isnโt abstractโitโs shaping decisions right now, from headwater streams to major reservoirs. And this year, the signals are hard to ignore. At the same time, conversations about water are tightening. Thereโs more concern and more sensitivityโespecially around anything tied to water availability.
Snowpackย across the Upper Basin has dropped to record or near-record lows. By early April, snow water equivalent in many areas fell to a fraction of normal, and snow cover reached the lowest levels observed in the satellite record. At the same time, this winter ranked among theย warmest on recordโreducing snow accumulation, accelerating melt, and increasing evaporative losses. These patterns are consistent with the impacts ofย climate change across the Colorado River Basin, where rising temperatures are diminishing snowpack reliability and reducing overall runoff efficiency.
June 1, 2026 seasonal water supply forecast summary.
Those conditions are now reflected in forecasts. Runoff across the Upper Basin watersheds is expected to be among the lowest on record, with sharply reduced inflows into Lake Powell. Meanwhile, Lake Powell and Lake Meadcontinue to sit near historic lowsโleaving very little buffer in the system.
Even where spring storms have brought some relief, the underlying deficitremains. Dry soils, warm temperatures, and reduced snowpack mean less water ultimately reaches rivers.
This is not just a dry year. Itโs a system under compounding stress.
Why This Matters: Ecological Drought
Ecological drought helps explain what those conditions mean on the ground.
That definition matters because it expands how we think about drought.
Itโs not just about precipitation. Itโs about how drought moves through a system:
From snowpack to soil moisture ย
From soil moisture to vegetation and habitat ย
From ecosystems to the services people depend on ย
Modern droughts are also changing. They are becoming hotter, longer, and more widespread, with impacts amplified by both climate conditions and human water use.
And those impacts donโt stay contained.
Ecological drought is fundamentally about connected systems. When ecosystems cross critical thresholdsโlosing wetland function, shifting vegetation, or degrading habitatโthose changes feed back into water supply, with wide-ranging implications to agriculture, wildfire risk, and community stability.
What it Looks Like Right Now
In Colorado, ecological drought is showing up as a shift in timing, duration, and connectivity.
Even with recent moisture:
Peak river flows are shorter and less effective ย
River baseflows drop earlier ย
Floodplains connect less often ย
Wetlands and side channels dry sooner ย
These arenโt always dramatic changesโbut they compound, especially when they occur in back-to-back years, reducing recovery time.
Thatโs a critical shift. Drought is no longer just episodic. Itโs increasingly persistent, with ecosystems spending less time in recovery and more time under stress.
Birds Are Early Indicators
For birds, these shifts are immediate.
Migratory species depend on wetlands that function like stepping stones across the landscape. When those wetlands shrink or disappear earlier, habitat becomes compressed.
Riparian birds like the Northern Yellow Warbler and Song Sparrow rely on dense, water-supported vegetation during breeding season. Earlier drying reduces both cover and food availability.
And beneath all of this, food webs shift. Aquatic insects emerge differently under drier conditions, creating mismatches with nesting cycles.
Birds are often the first to show us whatโs changingโbut theyโre not the only ones affected.
People Are In This System, Too
Ecological drought makes one thing clear: this is a single, connected system responding together. The same processes that shape habitat also shape outcomes for people. Soil moisture influences forage conditions for agriculture. Water timing and availability affect the reliability of community supplies. River flows support recreation and local economies, while connected floodplains help reduce risk and support recovery after disturbance.
This is what we mean by ecosystem servicesโthe benefits people receive from functioning natural systems. When those systems are strained or begin to break down, those benefits decline as well.
What This Means for the Basin
The science is pointing to something bigger than a single dry year.
The Colorado River Basin is increasingly operating in a warmer, drier regime, where snowpack is less reliable and variability is higher. Recent conditions mirror some of the most consequential low-flow years in recent historyโand they are becoming more frequent.
At the same time, current operating guidelines are set to expire, and the decisions made now will shape how the system responds to these conditions going forward.
Whatโs needed is a shiftโfrom reactive, year-to-year crisis management to more durable and flexible operations; from short-term fixes to sustained investment in long-term resilience; and from fragmented efforts to stronger alignment across states, Tribes, and water users.
There is growing recognition that solutions must include conservation, efficiency, infrastructure, and watershed healthโincluding restoration that improves how water is stored and functions across the landscape. Without that kind of alignment, risks will continue to compoundโecologically, economically, and socially.
A Clearer Lens for Whatโs Ahead
Ecological drought is not a new agenda. Itโs a way to understand how drought actually works in todayโs worldโhow water shortages move through ecosystems, how impacts cascade, and how those impacts ultimately reach people.
It connects snowpack to rivers, rivers to habitat, and habitat to communities. And it underscores something essential: when ecosystems are pushed beyond their limits, the consequences donโt stay ecologicalโthey become systemic.
Thatโs why this matters now. Because the question in front of us isnโt just how we respond to this yearโs drought. Itโs whether weโre building a system that can functionโecologically and sociallyโunder the conditions we know are coming (or are here).
Glen Canyon Dam forms Lake Powell on the Colorado River near Page, Ariz. Officials from the U.S. Bureau of Reclamation are holding back water and releasing water from an upstream reservoir to prop up levels in Lake Powell.ย CREDIT:ย HEATHER SACKETT/ASPEN JOURNALISM
Federal officials announced on Thursday that they plan on using a shorter-term framework for future Colorado River management so they can be more responsive to changing conditions and reservoir levels.
Acting Commissioner of the U.S. Bureau of Reclamation Scott Cameron said at an annual conference on water policy that the agency will be using a 10-year framework, issuing new operational guidelines every two years. In the absence of a seven-state deal for sharing shortages and managing reservoirs, river management now falls to the federal government โ an outcome nearly everyone had hoped to avoid.
โWe would love to have a 20-year deal or a 30-year deal but, frankly, we havenโt even been able to get the seven states to agree on what a two-year deal would look like,โ Cameron said. โGiven the highly unusual hydrological situation in the basin โฆ we think it makes sense to take a second look at decision making every couple of years.โ
As part of the required process under the National Environmental Policy Act, Cameron said Reclamation will release a final Environmental Impact Statement with its โpreferred alternative,โ in mid-to-late summer. It will lay out a more detailed 10-year operations plan for the nationโs two largest reservoirs, Lake Powell and Lake Mead, and will include short-term operational guidelines for 2027 and 2028. He said the plan provides a stable, transparent and adaptable framework for river management.
Scott Cameron is the acting commissioner of the U.S. Bureau of Reclamation. He announced Thursday the federal agency is planning to release a river management plan in mid-to-late summer that includes a 10-year framework, with new operational guidelines every two years. CREDIT: U.S. BUREAU OF RECLAMATION
โWe want to pay more attention to whatโs actually happening in the river and whatโs happening in terms of the elevation of the reservoirs,โ Cameron said. โWe want to manage conservatively during low inflow periods and hopefully be able to transition to recovery as conditions improve across the basin to keep the system stable and resilient.โ
Cameron left the door open for a return to future management by the states and added that if they eventually come to an agreement, it could supplant the federal plan.
Cameronโs update came at the Colorado Law Conference on Natural Resources at the University of Colorado Boulder, hosted by the Getches-Wilkinson Center and the Water & Tribes Initiative. Water managers from around the basin gathered at the Wolf Law School in the midst of one of the worst droughts on record that threatens the water supply for about 40 million people in the American Southwest. Record hot temperatures and one of the worst snowpacks since measuring began resulted in streamflows that peaked much lower than normal and, in some reaches, a month early. Reclamationโs most recent projections put spring runoff into Lake Powell at just 800,000 acre-feet, which would be 13% percent of normal and the lowest on record.
On top of the abysmal hydrologic conditions, the basin is also in the midst of a management crisis. The Upper Basin states (Colorado, New Mexico, Utah and Wyoming) and Lower Basin states (California, Arizona and Nevada) after two years of negotiating have failed to reach a consensus on how they will share future cuts and have blown past deadlines to come up with a plan. The current guidelines, which have determined shortages and releases since 2007, expire at the end of the year. But for all intents and purposes, water managers need a new plan in place by the start of the new water year on Oct. 1.
Some of the problem still centers around the 1922 Colorado River Compact, which allocated half of the riverโs flows (7.5 million acre-feet a year) to each basin. But this framework no longer applies under 21st century conditions, which has seen flows decline by 20% due to climate change. Despite indications a year ago that the states were moving to a supply-driven model based on each yearโs snowpack and available water โ rather than a fixed allocation of water โ a new management framework the states can agree on has remained out of reach.
Colorado representative Becky Mitchell and Nevada representative John Entsminger speak at a conference on Colorado River policy in Boulder on Friday, June 5, 2026. The federal government is set to release a plan for future river management in mid-to-late summer. CREDIT: HEATHER SACKETT/ASPEN JOURNALISM
Beyond the band-aid
The fedsโ operating plan for the first two years may be based on a proposal submitted by the Lower Basin states in early May, in which they propose to cut another 700,000 acre-feet of water per year through 2028, on top of the 1.5 million acre-feet they had already promised. California and Arizona will each take another 300,000 acre-feet of cuts and Nevada will take a cut of 100,000 acre-feet. The proposal does not include any mandatory conservation from the Upper Basin.
Federal officials responded in a May 28 letter with adjustments to make the proposal feasible, including the requirement that the Lower Basin states help pay for the 700,000 acre-feet of conservation. In the past, conservation programs have depended heavily on federal funding.
Becky Mitchell, who represents Colorado in the negotiations among the states, said during a Friday panel that the fedsโ plan was a starting point but raises some concerns. Constantly renegotiating an operating plan every two years would be hard to fathom, she said.
โHow do we fund and finance if weโre constantly renegotiating?โ Mitchell said. โAnd how do we create the certainty that the 40 million people deserve?โ
The feds have already stepped in this spring to prevent the worst consequences of the exceptionally dry winter and keep water levels at Lake Powell from falling below the threshold for making hydropower at Glen Canyon Dam. They are releasing up to 1 million acre-feet from Flaming Gorge Reservoir to prop up Powell and holding back Powell releases by about 1.5 million acre-feet. Cameron conceded, however, that these are temporary, stop-gap measures meant to address a critical situation.
โI think we succeeded in making everybody unhappy and everybody mad, which maybe means weโre doing the right thing in terms of Lake Powell,โ Cameron said.
The Upper Basin states, including Colorado, are exploring ways to contribute water to a pool in Lake Powell as a means of maintaining higher water levels and an insurance policy against drastic cuts. But officials have not budged from their position that the Upper Basin is limited in what it can do and that cutting Lower Basin overuse is the primary solution to the Colorado River crisis.
Brad Udall, a water and climate scientist at Colorado State University whose presentation kicked off the conference, asked water managers not to waste this unique opportunity to redo 100 years of law and policy around how to manage a critical resource. And he directed a plea at the Upper Basin, saying that they, too, are part of the problem.
โWe need everybody with a shoulder to this wheel,โ Udall said. โWe understand that the Upper Basin is different. We understand that they donโt have (large upstream) reservoirs and that every year people suffer. But we need you to help. Please help us.โ
Udall/Overpeck 4-panel Figure Colorado River temperature/precipitation/natural flows with trend. Lake Mead and Lake Powell storage. Updated through Water Year 2025. Note the tiny points on the annual data so that you can flyspeck the individual years. Credit: Brad Udall
Map of the Colorado River drainage basin, created using USGS data. By Shannon1 Creative Commons Attribution-Share Alike 4.0
Click the link to read the article on the InkStain website (John Fleck):
June 1, 2026
Iโve been on a โColorado River sabbaticalโ of late, but I took a peek last week at Reclamationโs latest 24-month study. Holy moly things have gotten bad since the last time I looked!
Those not on sabbatical already know all of this, but to keep Lake Powell above a surface elevation of 3,500 feet, Reclamation is:
increasing releases out of Flaming Gorge on the Wyoming-Utah border
dropping releases out of Lake Powell to 6 million acre feet this year
Even with those two โhail Maryโ moves, Lake Mead is projected in the โmost probableโ scenario to drop to elevation 1,020 by summer 2027. Under the โminimum probableโ forecast, Mead drops all the way to elevation 1,008 in 2027.
We are on the brink, as a group of my colleagues explains in a new analysis out this morning (Monday June 1, 2026), of a system crash:
Even a wet year, my friends conclude, would only provide a short reprieve from the need to significantly reduce consumptive use.
Building on a similar analysis done last September (I was a co-author on that one), the authors attempt to overcome one of the shortcomings of the traditional Colorado River accounting systems, which is to treat any water above โdead poolโ as usable storage. This is not the case, with clear do-not-cross lines in the reservoirs that are maintained for technical reasons well above the bottom, defined by my colleagues asโฆ
One of the reasons for my โsabbaticalโ is, frankly, an agonized frustration with the abject failure of Colorado River governance at the basin scale, and a desire to turn my attention to the local level, which is where the problem solving responsibility seems to rest right now. Each community needs to be having a serious conversation right now about the specifics of its Colorado River water supply, and how it intends to go about using less. Blaming other people for using too much isnโt particularly useful at this point, we seem to have chosen to hand that set of questions (the rule-based part of โwho is entitled to how muchโ) over to the courts, and who knows what that process holds. We know the answer for everyone is โuse less waterโ, and each community needs to be getting on with that conversation.
A large crowd listens to a presentation at the University of Colorado Boulder law school about securing powerful new water rights on Colorado’s West Slope to benefit the health of the Colorado River. Scott Franz/KUNC
June 5, 2026
This story is part of ongoing coverage of the Colorado River, produced by KUNC in Colorado and supported by the Walton Family Foundation. KUNC is solely responsible for its editorial coverage.
Water negotiators, river enthusiasts, Native tribes and lots of lawyers convened at the University of Colorado Law School on Thursday to take stock of the future of the dwindling Colorado River.
Here are five things KUNCโs water and environment reporter learned on the first day of the gathering.
Thereโs a thirst for treating the river as more than something to be consumed, and monetized and stretched out
Dale Sinquah, a tribal council member for Arizonaโs Hopi tribe, is among a growing number of people who view the Colorado as a living being that should have the same rights as a person.
โIf you look at it at that level and you allow it to, then it starts changing the ways in which you think about it, and maybe your actions,โ he said.
Late last year, the Colorado River Indian Tribes of Arizona and California voted to give their namesake waterway the same legal rights as a person, saying the โliving beingโ deserves more protection while itโs being threatened by overuse and drought.
Sinquah said he had mixed reviews of the discussions at the water conference halfway through the first day.
โI’m kind of wondering if we’re stuck in that mode where you know personal interest (is winning) instead of how do we fix this as a whole, as a group,โ he said. โIt works better when you work together as a group.โ
Thereโs still no finalized federal plan for the river yet, and the White House could have the final sayโฆ
Scott Cameron, the acting commissioner of the Bureau of Reclamation overseeing the operations of Lake Powell and Lake Mead, said the Interior Department is expecting to publish a short term operating plan for the reservoirs by โmid-summer.โ
He said the plan would have to be renegotiated every two years and could be replaced at any time with one that the seven states can agree on.
โThe good news is that the White House is very interested in whatโs going on with the Colorado, so weโll probably have to brief the White House on the (Secretary of the Interiorโs) decision before itโs final,โ Cameron said.
U.S. Interior Secretary Doug Burgum, center, speaks during a gathering with governors from six states in the Colorado River basin on Friday, Jan. 30, 2026. Photo credit: Lowell Whitman/Department Of Interior
River negotiations are ongoing, but details are scarce…
First governors from all seven states in the river basin were summoned to Washington, DC, ahead of the Feb. 14 deal deadline they missed.
Then, after that didnโt work, came the Microsoft Teams meeting.
Scott Cameron, the acting commissioner of the Bureau of Reclamation, said Interior Secretary Doug Burgum recently talked with the seven governors again on the virtual meeting platform.
“The fact that he is trying to wrangle his gubernatorial colleagues twice, I think, indicates how seriously Secretary Burgum takes what’s happening in the Colorado River,โ Cameron said.
However, no deal has yet to materialize as the states remain at an impasse, and some in the upper basin have called for a different mediator to intervene.
June 1, 2026 seasonal water supply forecast summary.
One thing is clear.
Forecasts for the river have gotten worse in recent months. And there was an acknowledgement that the status quo is not sustainable.
Graphic via Holly McClelland/High Country News.
Could the feds get more involved in the management of upper basin reservoirs like Flaming Gorge? The answer is murkyโฆ
The audience asked Cameron, the Bureau of Reclamation official, about his thinking on how Interior should manage four large reservoirs in the upper basin that are collectively known as the upper initial units (they include Flaming Gorge on the Wyoming-Utah border).
Flaming Gorge is currently being partially drained so water can be sent down to Lake Powell so it doesnโt get so low that it stops producing hydropower.
Cameron said the Interior Secretary could exert more control over the reservoirs in the future in the event of an โemergency.โ
โAnd what an emergency is, I think, is probably in the eyes of the beholder,โ he said. โNow, you put four or five lawyers in a room. You’ll probably get nine answers on how much discretion the secretary has or doesn’t have in the upper initial units.โ
Parts of the lake that have only recently been uncovered are full of old beer cans and other relics of boating escapades, including sunken boats.
But deeper down, Podmore shared photos of Native artifacts that have survived decades of being submerged.
New ecosystems are also taking shape.
The Colorado River Basin spans seven U.S. states and part of Mexico. Lake Powell, upstream from the Grand Canyon, and Lake Mead, near Las Vegas, are the two principal reservoirs in the Colorado River water-supply system. (Bureau of Reclamation)
Doug Kenney at the Getches-Wilkinson Center 2026 Conference on the Colorado River June 5, 2026. Photo credit: Allen Best
Click the link to read the article on the Big Pivots website (Allen Best):
June 7, 2026
Doug Kenney, principal organizer of annual gathering in Boulder, talks about how the growing tensions among basin states pose challenges in setting the agenda
The Colorado River has always had a magnetic appeal to the public consciousness. John Wesley Powell and his crew were instant national heroes after they emerged from the Grand Canyon in 1869.
That interest continues to this day. Bathtub rings are an absorbing visual, an easy way to communicate declines in the two biggest reservoirs in the basin, Mead and Powell. The river is being hammered by a warming climate and archaic governance of the shared resource.
This provides much to chew on, and that discussion continued again on June 4-5 at the Colorado River Conference hosted by the Getches-Wilkinson Center at the University of Colorado Law School. Organizers reported 373 people were registered to attend in person and another 132 remotely, a record for both. This surpasses a record set last year.
Afterward, Big Pivots sat down with Doug Kenney, the principal organizer of the conference, to take stock of what had just transpired. He directs the Western Water Policy Program and chairs the Colorado River Research Group.
What year did this conference begin? What was the thinking that gave birth to it?
I believe 1983 was the first one. This was mostly a creation of Larry MacDonnell, (the first director of the Natural Resources Law Center, a position he held from 1983 to 1994).
Larry pursued a dual mandate of researching key issues but also of trying to involve the public and other constituencies. A conference was a natural thing to do. We are an educational institution.
Iโve done the last 30 or so of them, but Larry got it started,
It seems like two or three, maybe three years ago, the tribes became a major presence in attendance and on the agenda. How did this come about?
Mostly through our professional networks. We knew people who were associated with the (Colorado River Basin) Water and Tribes Initiative. They wanted to broaden their reach and their influence. At the same time, weโve here always wanted to involve tribal interests in what we do, going back to the work of David Getches and Charles Wilkinson.
We decided weโd try co-hosting a conference. Itโs a partnership, and like all partnerships, it grows over time. But itโs working pretty well, I think.
Am I wrong? Was I missing something? I didnโt notice much of tribal presence in the agenda or participation until just a few years ago.
Weโd usually maybe have one tribal speaker sprinkled in the program somewhere, but it was pretty hit and miss, in part I think because you kind of need a critical mass of involvement from the tribal community for other tribes to feel like this is a place that theyโd be taken seriously and that theyโd be welcomed. It wasnโt a slow linear growth to where weโre at today. There was a pretty dramatic shift four or five years ago.
How new is the Water Tribal Initiative?
Theyโve been around I think for about a decade. Theyโre co-managed by Matt McKinney, who wasnโt here, and Daryl Vigil.
Native America in the Colorado River Basin. Credit: USBR
Itโs not a national thing, but the Colorado Basin has 30 different tribes. Thatโs a pretty big number of tribes to keep track of. Itโs a network as much as it is anything, and every so often they try to get together. They consider this conference their big convening. They also get to get together at CRWUA (Colorado River Water Users Association, which holds an annual conference during December in Las Vegas).
They have also produced a few research reports. This week they talked about their report on tribal sovereignty. And they have particular initiatives within the Water and Tribes Initiative, such as universal access to clean water. They are pushing, mostly through federal legislation, to provide assurances that all tribes have access to clean water.
Do they have a strong benefactor?
I donโt think so, but they have a very broad base of funders and supporters. A lot of water agencies, a lot of people, and a lot of organizations that know tribes have been treated poorly and that tribes have legitimate interests in the basin but (know) that many tribes just donโt have the resources to do this without some assistance.
As Iโve attended most years since 2002, I have noticed some ebbs and flows. There were some empty seats this afternoon, but the seats were mostly occupied through the first day and a half, and thatโs somewhat different than, say, 10 years ago. What explains the ebb and flow?
I attribute that mostly to two things: one is this partnership with the Water and Tribes Initiative. The other thing is the fact that weโre talking about the Colorado River, which by every measure is in a crisis. Itโs easier to get peopleโs attention when youโre talking about a crisis than when youโre talking about something thatโs still not that serious. Thatโs part of it.
We used to be in another building. This is clearly a better facility for audience and speakers alike. That helps us attract a larger audience. Weโve had good foundation support, good funders. It takes a lot of money to do this, but weโve had funders that see value in it. That has allowed us to make this a bigger event.
The conference is always the first week of June, so when do you begin rough-drafting the agenda?
Usually January. In some years itโs easier than others. This year was the most difficult. It was the easiest year in terms of attracting an audience. The hardest year in terms of putting the program together.
Everyoneโs mad at each other, and everyone is โ I canโt tell you all the back stories. Becky Mitchell said something today about how itโs hard to negotiate and prepare for litigation at the same time. Sheโs right. And I was thinking to myself, itโs hard to bring people together to talk at a conference while acknowledging the fact that theyโre all mad at each other, and some of them are about to sue each other, and some canโt be in the same room with each other because theyโre that angry, and some will be deeply offended if someone else is there.
Itโs one of these years that thereโs just so many delicate issues and angry folks โ and angry for legitimate reasons; Iโm not discounting that. But itโs been a really challenging year.
Your answer anticipates my next question, but Iโll ask it nonetheless. If memory serves me, a few years ago you had representatives of all seven basin states at the same table. This year you had two. I guess itโs fair to say that agenda setting has become more politically sensitive.
Every year for the last four or five years weโve given all seven principals, all seven states, an opportunity to sit at the same table and have a discussion. In every passing year it becomes more difficult to do that.
Commissioner to the Upper Colorado River Commission Becky Mitchell, center, speaks on a panel with representatives of each of the seven basin states at the annual Colorado River Water Users Association conference in Las Vegas Thursday, December 15, 2022. CREDIT: HEATHER SACKETT/ASPEN JOURNALISM
You have seen this at CRWUA as well. Some years they had to divide into two sessions, upper and lower basin sessions. For awhile we were thinking of just having a lower basin session. The lower basin folks were happy to do that, but the upper basin folks werenโt as comfortable. We (also) thought about a different part of the session or a different location.
Ultimately we came to the conclusion that everyone could agree if it would be a conversation, not a posturing or confrontational thing. (Having) one upper basin person and one lower basin person, that was a format that could work. Thatโs what we did (with Becky Mitchell from Colorado and John Entsminger of Nevada). Anything more elaborate than that I donโt think was viable this year. Itโs a really delicate time.
In terms of conferences devoted to the Colorado River do you have rivals for what youโre doing? Are there other places in Arizona or California, for example, that are kind of like must-go sessions?
There are two must-attend Colorado River conferences each year, and this is one of them. CRWUA (in Las Vegas) is the other one.
We specifically try to be different than CRWUA. Weโre the opposite end of the calendar, roughly six months away. CRWUA is in many respects much more of a social event. We try to be more academic and about policy, with serious talk about serious issues. CRWUA, just like us, ebbs and flows from year to year in terms of what it looks like. But we try to be a little more hard-hitting and less of a, you know, take-the-family-and-have-a-vacation sort of event. I donโt mean to sound like Iโm negative on CRWUA. I think weโre the perfect compliment.
Aside from that, there are some meetings such as CLE, Continuing Legal Education. It always has a Colorado River event. This year was quite good. Many other years, itโs not as strong. For practicing attorneys, thatโs something that they want to go to every year, because they can get some credits there.
Still another one in New Mexico thatโs held each year kind of commemorates the signing of the compact.
How do you measure success? Iโm sure you constantly ask that question of yourself.
You understand the challenge of it all. We can measure success by the size of the crowd and that they mostly seemed to have a good time. In that sense, thatโs success.
The other side of that is that weโve been focused just on the Colorado River issues for the last five or six of these, and things have only gotten worse on the river. Obviously, we donโt think weโre to blame for that. But clearly, thereโs no great success story that we can lay credit to either.
So I think weโre successful in that we promote conversation and the exchange of ideas, and we shine a light on new and innovative ideas, and we give a voice to people who sometimes donโt have a voice. This is where the tribes come into play again.
Some elements I think are successful, but in the very big scope of things, the issues that weโve been addressing in our conference arenโt getting any better. It does force me to think about (and question) whether there is a better way for us to make a difference. I donโt know what that would be, but I do think about that a lot.
Map of the Colorado River drainage basin, created using USGS data. By Shannon1 Creative Commons Attribution-Share Alike 4.0
A mini-sandstorm partially obscures the Bullfrog Marina on Lake Powell. Dropping reservoir levels are forcing officials to move the marina to a deeper part of the lake. Jonathan P. Thompson photo.
Maybe sitting next to the wall of plate glass windows was not the smartest move, I thought, as a sienna-colored cloud of sand lifted up from the lakeside and made its way in my direction. I had just tucked into my $16 grilled chicken sandwich at the Anasazi Restaurant at Bullfrog Marina on Lake Powell when the wind kicked up, sandblasting the windows and causing a sizable milk crate to slide back and forth along the railings of the patio outside. It was an eerie scene. Had this been an apocalyptic cli-fi film set in a calamitously aridified West, this would have been the moment when a pterodactyl-like creature smashed through the window and plopped down all bloody and sandy in my plate of fries, an omen of the horrors to come.
It was not, however, a film. The dystopian scene was real as was the aridification, though it did not include any prehistoric creatures โ only a handful of staff and other diners who, much to my dismay, seemed utterly unperturbed by the sandstorm and the havoc it was wreaking on a set of outdoor furniture. And, outside, a few ravens who seemed delighted to frolic in the gustsโ updrafts.
When we think of climate changeโs effects, we might imagine communities inundated by rising seas, unhoused folks exposed to ever more severe heat waves, or entire towns wiped out by megafires. I was here at Bullfrog to see how a warmer and drier climate is affecting the communities, infrastructure, and economies that rose up around and depend upon Lake Powell-based recreation.
Bullfrog is the largest and most extensive marina on Lake Powellโs northern end. It has a 48-room hotel, the aforementioned restaurant, a gas station and convenience store, an RV park, and other lodging, along with its own school, which this year had four students in grades K-6. The population of some 50 to 100 consists mostly of employees of the National Park Service and Aramark, the private concessionaire that runs the reservoirโs marinas and other facilities. Nearby Ticaboo, which lies outside Glen Canyon National Recreation Area but also relies on Lake Powell recreation, has another 50 to 100 residents. The nearest incorporated town is Hanksville, some 67 miles to the north.
Bullfrog Creek along the southern end of the Burr Trail and Bullfrog Bay on Lake Powell in the distance. Jonathan P. Thompson photo.
Bullfrog lies at the end of the road on a bay at the mouth of Bullfrog Creek, where the water is shallower than on the main channel of the Colorado River, making the marina and its facilities more vulnerable to dropping water levels. While the main boat ramp is still being used, it will likely become unusable later this summer as the reservoirโs surface levels falls toward 3,500 feet. In coming weeks, the entire floating marina will be towed across the reservoir to deeper water adjacent to Halls Crossing Marina; Bullfrogโs fuel and boat rental docks have already been moved. The ferry between Bullfrog and Halls Crossing isnโt functional at low water levels, so is expected to be out of commission for the rest of this year, making for a 145-mile car trip between the facilities at Bullfrog and the boat ramps and marina at Halls Crossing.
I visited Bullfrog on a Sunday in mid-May. Because I needed to do some internet-related work early on Monday morning, I stayed in the hotel. I initially regretted not staying in the campground, since it was mostly empty and had a strong cell phone signal, but when the tent-shredding winds and skin blasting sands kicked up I was happy to be ensconced in more secure lodging, especially given the relatively reasonable price.
It was the high tourist season elsewhere in Canyon Country. The trailhead parking lots at Capitol Reef National Park were all full or overflowing that morning as I drove through, and Torrey had been busy during my stay there for a writing conference. As I slowly made my way down the Notom Road and Burr Trail, stopping frequently to gaze at the curves and crevices in the Waterpocket Fold and for a quick bike ride, I saw maybe a half-dozen other vehicles.
Waterpocket Fold. Jonathan P. Thompson photo.
Waterpocket Fold detail. Jonathan P. Thompson photo.
Bullfrog, meanwhile, was decidedly quiet. The hotel was nearly empty. Only a few sites in the RV park were occupied, and I later saw that most of the sites were out of order and closed. A couple of dozen cars, at the very most, were parked on the only operable boat ramp. The shelves on the little convenience store were sparsely stocked, and a box of Triscuits was going for $7.50 โ though there was no cheese to accompany them โ and gas was selling for $5.17. In May of 2000, the Bullfrog District received 33,000 visits, according to National Park Service statistics; in May 2025 only 10,886 visitors passed through the entrance gate. Current numbers arenโt yet available, but I imagine this yearโs visitation will be far lower. And once the boat ramp ceases to function, I imagine the numbers will plummet further.
Boats, redrock, and snowy Henry Mountains at Bullfrog Marina. Jonathan P. Thompson photo.
The National Park Service is planning to build a new, deeper-water boat launch at Stanton Creek, a couple of miles from central Bullfrog, where the marina can be moved permanently. The project is expected to cost some $73 million, and wonโt be completed this year. Itโs a type of climate adaptation, I suppose, though one canโt help wonder how long the fix will last if the reservoirโs levels keep dropping.
Meanwhile, Bullfrogโs future is in doubt. A series of especially snowy winters in the high country might be enough to bring Bullfrog back from the edge of obsolescence. Maybe they wonโt even need the Stanton Creek site. On the other hand, just one more below-average snowpack year could doom Lake Powell altogether. If Colorado River flows donโt increase substantially in the next year or two, the Bureau of Reclamation will have little choice but to build tunnels to bypass Glen Canyon Dam and effectively drain the reservoir in order to keep water running into the Grand Canyon and on to Lake Mead.
The question then would be whether Bullfrog could (or would even want to) adapt to a different sort of tourism.
The place might try to cater to hikers and small-watercraft users looking to check out newly revealed parts of Glen Canyon that have been inundated for the last several decades. And it could lure travelers exploring the greater regionโs backcountry, though itโs not clear that type of visitor is going to be interested in the type of accommodations and services Bullfrog currently offers. Maybe it will just become a destination for disaster-tourist voyeurs looking to see the effects of climate change in real-time. Or, perhaps Bullfrog will become another Hite Marina, which the shrinking reservoir has left high and dry, its boat ramp separated from the lake by some six miles, the store and campground permanently shuttered and gated off.
Sightseers at Hite Overlook gazing down at the โDominy Formationโ of silt left behind by the receding waters of Lake Powell. Jonathan P. Thompson photo.
Hite Marina and boat ramp on what once was the northern end of Lake Powell. Jonathan P. Thompson photo.
The last time I visited Bullfrog was in the late 1980s. My dad, my brother, and I camped at Halls Crossing, then woke up and rode the ferry across the lake. From there we made an epic loop around and over the Henry Mountains along the then-unimproved Burr Trail and another gnarly road in our 1967 Pontiac Catalina. It took at least eight hours and involved some extensive road-building to keep the boat-like vehicle from bottoming out. Anyway, I remember Bullfrog as being a bustling resort with a sort of spring break party vibe, relative to the more bare-bones Halls Crossing. Of course, those were the glory days for Lake Powell, when the reservoir was full, and at the end of a bone-jarring drive across the desert one could stop at the Hite Marina for refreshments.
That night I listened to the sand batter the sliding glass door of my hotel room. The next morning, the reservoirโs placid waters reflected dawnโs first light, and the distant sandstone dunes seemed to glow from within. And to the north, a fresh coating of snow covered the craggy slopes of the Henry Mountains, promising a little bit of relief from these dry and trying times.
Henry Mountains. Jonathan P. Thompson photo.
๐ธ Parting Shots ๐๏ธ
Early light, the Colorado River canyon, and the Henry Mountains from the White Canyon drainage. Jonathan P. Thompson photo.
Apache Plume and canyon in Utah. Jonathan P. Thompson photo.
Click the link to read the article on the Big Pivots website (Allen Best):
May 26, 2026
Dissonance exists between life-close-to-normal policies regarding urban water use and the growing crisis on the river
Casually surveying the urban landscapes in much of Coloradoโs Front Range, youโd never know that the Colorado River โ the source for roughly half the water of the cities โ has deteriorated to its most pitiful shape of perhaps the last century.
Oh, yes, some utilities โ notably Denver Water and Aurora Water, which together serve 1.9 million residents โ have imposed rigorous stage-one drought watering restrictions. Outdoor irrigation is allowed twice per week and never during the heat of day. Other water utilities that tap Colorado River water, however, have asked only for voluntary cutbacks, if any at all.
Jeff Lukas via the Western Water Assessment.
Jeff Lukas, a water consultant with several decades invested in climate change work, says this seeming aloofness of some cities will not persist indefinitely. That is certainly true if the record heat and abnormal dryness of the past winter continues into 2027. They may have no choice.
โI think Front Range cities will be asked, whether nicely or not, to reduce their Colorado River diversions,โ said Lukas in a May 11 webinar. โThe mechanism for that is unclear, but I think itโs going to happen.โ
Water rights of the Front Range cities โ and many of those on the Western Slope, too โ are junior to the Colorado River Compact. It was negotiated in 1922, making diversions more recent than that junior.
Problems in the basin were becoming apparent in the 1990s. The warming climate in this century has provoked changes. By all accounts, they have not been enough.
Lukas, as a dendrochronologist at the Institute of Alpine and Arctic Research in Boulder 20 years ago, was teasing out evidence from tree rings to understand the climates of the Colorado River Basin during the last 1,200 years.
Later, as a scientist with the Western Water Assessment, Lukas co-authored (with Liz Peyton) a 2020 report called Colorado River Basin Climate and Hydrology: State of the Science. That 500-page report integrated more than 800peer-reviewed studies to help water managers understand physical processes, climate risks, and forecasting tools across the basin.
In 2024, with the state climatologist, Russ Schumacher, and several others, Lukas turned out the 100-page volume called โClimate Change in Colorado.โ
Based in Lafayette, Lukas now works as a consultant. At Lukas Climate Research and Consulting, he specializes in the overlapping areas of climate hazards, water resources, and ecosystems.
Lukas, in a presentation he titled โRunning dry on the Colorado River: The roots of the crisis & its implications for the Front Range,โ explained the big picture and Coloradoโs Front Range part in it.
Defined by the Continental Divide, Colorado has an inverse relationship between its eastern and western slopes. About 90% of the stateโs residents live to the east, nearly all at the foot of the Rocky Mountains, whereas 80% of the stateโs precipitation originates on the west side, in the headwaters of the Colorado River and its tributaries.
Snow from the Gore Range and other โislandsโ of precipitation in Colorado provide 50% to 60% of the water in the Colorado River. Photo credit: Allen Best/Big Pivots
Colorado itself provides 50% to 60% of the water in the entire Colorado River, depending upon the year. This year has been a terrible year everywhere in the basin, Colorado included.
Lukas explained that โislands of moistureโ provide nearly all the water in this 244,000-square-mile basin. The high mountains constitute these islands. Some places deliver more than others. Buffalo Pass, near Steamboat, famously has had prodigious volumes of snow. This snow, when melted, can produce 50 inches of water.
It takes 20 inches or more of precipitation in these mountain islands to produce meaningful runoff. Even then, it doesnโt all end up in the Colorado River. In Colorado and the three upper-basin states, he said, 16% of the rain and snow that falls becomes water in the Colorado River. In the hotter lower basin, the figure is 3%.
โThe atmosphere takes back most of what it giveth, even in the wetter upper basin,โ he said.
Evaporation and transpiration are the pickpockets of this water. Heat produces evaporation, and weโve had plenty of that this year.
Temperatures during November through April were the warmest on record in Colorado for that span of months. March heat was exceptional. This produced runoff in the rivers that in most cases may surpass that of May or June, the traditional times for peak runoff. Peak runoff has been trending earlier by several weeks during the last few decades, but this was a leap of about two months.
Runoff for April through July โ a time that normally accounts for 70% to 80% of annual streamflows โ this year will likely deliver no better than 20% to 40%. In its May report, the Bureau of Reclamation said April flows into Lake Powell were 40% of the average during the last 30 years and it expects flows in May to sink to 9% of that average.
Can it get any worse? Count on it, said Lukas.
โWe should expect not every year to look like 2026 from here on out, but more years in the future will look like 2026. And somewhere down the pipe, not as far in the future as we would like, there will be a year worse than 2026 for the Colorado River.โ
Members of the Colorado River Commission, in Santa Fe in 1922, after signing the Colorado River Compact. From left, W. S. Norviel (Arizona), Delph E. Carpenter (Colorado), Herbert Hoover (Secretary of Commerce and Chairman of Commission), R. E. Caldwell (Utah), Clarence C. Stetson (Executive Secretary of Commission), Stephen B. Davis, Jr. (New Mexico), Frank C. Emerson (Wyoming), W. F. McClure (California), and James G. Scrugham (Nevada) CREDIT: COLORADO STATE UNIVERSITY WATER RESOURCES ARCHIVE via Aspen Journalism
This is so very different from what was assumed by the delegates from the seven basin states who gathered in 1922 in Santa Fe to apportion the Colorado River.
The role of reservoirs
Taking the big, long-term view, Lukas pointed out that the overall story of the Colorado River is one of modifications needed to suit human uses. โItโs all about smoothing out the natural variability in the availability of water over space and over time.โ
Reservoirs are the primary means by which humans have been able to โsmooth out the natural variability.โ
The Colorado River Basin has 60 million acre-feet of storage. Thatโs four times the annual flow. Five-sixths of the storage capacity is found in the desert in two vessels: lakes Mead and Powell. The headwaters have many reservoirs but they are relatively small. The total storage capacity is 2,000 times more than the volume of Dillon Reservoir.
Illustration from the report, โAntique Plumbing & Leadership Postponedโ from the Utah Rivers Council, Glen Canyon Institute and the Great Basin Water Network. Courtesy of Utah Rivers Council
Since 2000, stored water in those two big buckets, Mead and Powell, has declined from 49 million acre-feet to 16 million acre-feet as of May. Of that, 9 million lies at elevations below the lowest outlets. These are called dead pools.
Those delegates in 1922 who crafted the Colorado River Compact, the legal document that provided the basis for nearly all these dams and aqueducts subsequently built, assumed annual flows of 17 million to 18 million acre-feet. They were overly optimistic. The 20th century average was 15.2 million acre-feet.
Now comes the 21st century, and the average at Lee Ferry has dipped to 12.2 million acre-feet. This has implications for the Front Range cities but also farms. If Colorado must reduce its diversions to accord with the compact, those rights dated before 1922 will be exempt from reductions. The giant transmountain diversions have come more recently, as have many of the diversions for towns and cities on the Western Slope.
Accumulating evidence fingers human-caused climate change with large amounts of responsibility for declined flows. Lukas said his rule of thumb is that the role of greenhouse gases overall are responsible for two-thirds of lower flows.
Colorado statewide annual temperature anomaly (ยฐF) with respect to the 1901-2000 average. Graphic credit: Colorado Climate Center
As for the mechanics of this shift, rising heat is one important โknob,โ said Lukas. As the atmosphere warms, it reduces โrunoff efficiencyโ even more, sending water into the atmosphere instead of into streams and then rivers. Accumulating evidence fingers human-caused climate change with responsibility for most and possibly all of increased temperatures.
Precipitation has declined about 5% since 2000, with a larger reduction in spring, an important time of year to get moisture. Here, the link to the warming climate is less clear. โIt seems increasingly likely that climate change is changing the dynamics of storm tracks and the persistence of, say, high-pressure systems over the interior West,โ said Lukas. โThat is, at least in part, responsible for why weโve had less precipitation since 2000.โ
The Colorado River, though, had problems even before the warming climate began throwing sharp elbows in water volumes. The reservoirs of the Colorado River Basin were 92% full in 1999, a wet decade overall. Even then, however, the Colorado River had ceased to reach the Pacific Ocean. There were too many straws inserted.
Less than 12% of the riverโs flow goes to urbanized and industrial uses. Lukas pointed out that cities have become more efficient in their use of water. The rule of thumb for Denver and other Western cities is that one acre-feet of water meets the needs of a three households on an annual basis. That compares with two households a few decades ago.
Mining of fossil fuels and minerals uses a small amount. Evaporation from reservoirs and rivers and other โsystem lossesโ accounts for about 15%.
That takes us to agriculture. It uses 75% of the riverโs water in the Colorado River for irrigation on 5 million acres. Some of that land lies outside the basin itself. That includes the South Platte and Arkansas River valleys of eastern Colorado.
Over half of that water โ about 9 million acre-feet โ gets used to grow feed for livestock, mainly alfalfa and pasture grass.
Might cities want to cut deals with farmers to โshareโ the water? This discussion has been underway for at least 15 to 20 years. Some pilot projects in Colorado and elsewhere have been launched to see what this might look like. A strong proponent has been James Eklund, a water attorney in Denver. Others question how this is done and, for that matter, whether we want to do it. But certainly, water for urban uses has higher monetary value than growing hay to feed cattle.
Why the restraint of cities?
As for the Front Range cities, the big question is whether they are planning for a river that produces even less than it does now.
In 2024, Andy Mueller, the general manager of the Colorado River Water Conservation District, suggested the need to start planning for a river that may deliver less than 10 million acre-feet in coming decades. Some thought then that the state engineer, Jason Ullman, needed to start sorting through this matter of junior vs. senior rights. Jim Lochhead, a former water attorney on the Western Slope and later CEO of Denver Water, pushed back, saying it was premature given the huge amount of work that would be required. See: โHeading for the Colorado River Cliff,โ Big Pivots, Oct. 20, 2024.
At the Zoom session on May 11, I asked Lukas about the modest watering restrictions by Front Range water providers. He had previously described mixed signals from the water utilities. If 2027 is dry again, expect more uniformity around drought restrictions. โBut itโs pretty weird right now,โ he said.
With the attention to the Colorado River in the news media, it seemed like a perfect opportunity for the water utilities to mount more aggressive campaigns. Any idea why they had not, I wondered.
The utilities, he said, are reluctant to deliver regulations that produce discomfort around outdoor water-use restrictions. They donโt want to do this unless absolutely necessary.
Part of this is because of experiences during the covid epidemic. A lesson to public servants during that time made them more reluctant to push the public to do things they donโt want to do. โYou only want to exercise that authority, that public legal authority, sparingly and only when itโs clear that is what is really necessary.โ
Revenue was another consideration. Water infrastructure is expensive, and the money to pay for it comes from charges for water use. By imposing limits, you reduce revenue and hence must charge more for water. The conundrum is that reducing use doesnโt necessarily mean you pay less. In some cases, less water may require more infrastructure. This is a hard message to convey.
โWhat youโre seeing is a dissonance between the circumstances and whatโs happening, at least this year,โ he said.
Or at least right now. We have had rainy weather in May. Some meteorologists think we may end up with healthy rainfall this summer. If instead the summer is like the winter, very hot and dry, I expect the utilities might pick up their game.
This USGS map shows the number of PFAS detected in tap water samples from select sites across the nation. The findings are based on a USGS study of samples taken between 2016 and 2021 from private and public supplies at 716 locations. The map does not represent the only locations in the U.S. with PFAS. Sources/Usage: Public Domain. Visit Media to see details.
EPA aims to end federal regulation of fourย PFASย in drinking water and give utilities more time to comply with existing rules.
FEMA reopens applications for aย climate-resilient infrastructure grant programย that the agency had cancelled.
Bureau of Reclamation announces $52 million for three newย Hoover Dam turbinesย that will generate hydropower at lower Lake Mead levels.
A House FY27ย budget billย will cut the federal governmentโs primary water infrastructure funds by 24 percent.
NOAA forecasts fewerย Atlantic hurricanesย this season.
EPA water office leader commits to investigate groundwater pollution in Georgia fromย Meta data center construction.
The Trump administration recommends that the U.S. Supreme Court take up Nebraskaโs claim that Colorado has violated aย river-sharing compact.
And lastly, the Bureau of Reclamationโs acting commissioner informs a House subcommittee about the status of Colorado River negotiations.
โSeveral weeks ago, I met with the 14 senators from the Colorado River basin and on a bipartisan basis, several of them said, โLook, we have a real crisis on the Colorado and we need to get things done and if there are any environmental statutes that are slowing things down, tell us what they are and maybe we can legislate to clear out some of the unhelpful bureaucratic paperwork.’โ โ Scott Cameron, acting Bureau of Reclamation commissioner, speaking at a House Natural Resources subcommittee hearing. Cameron said his office has not yet followed up on the offer but โlooked forwardโ to conferring with the senators about โwaiving or streamlining certain environmental statutes on the Colorado.โ
Udall/Overpeck 4-panel Figure Colorado River temperature/precipitation/natural flows with trend. Lake Mead and Lake Powell storage. Updated through Water Year 2025. Note the tiny points on the annual data so that you can flyspeck the individual years. Credit: Brad Udall
As for the status of Colorado River negotiations, Cameron said, โFrankly, the seven states are not in a position where they could agree today, right now, to a four-year deal, let alone a 20-year deal, because of the uncertainties weโre dealing with.โ
By the Numbers
$1 Billion: Funding now available from FEMAโs Building Resilient Infrastructure and Communities program, a grant opportunity to reduce risk from climate and weather hazards. A federal judge ordered the agency to reinstate the program, which the Trump administration had cancelled. Applications are due July 23.
$52 Million: Funding announced by the Bureau of Reclamation for three new low-head turbines at Hoover Dam. Only five of the damโs 17 turbines are designed to operate when Lake Mead drops below elevation 1,035 feet, a threshold that the shrinking reservoir is fast approaching and could breach in the next 12 months, if not sooner.
Not So PFAS The EPA is proposing to repeal federal regulation of four PFAS in drinking water, partially undoing a Biden-era rule that set first-ever limits on six of the โforever chemicals.โ
Three of the chemicals โ PFHxS, PFNA, and Gen X โ were regulated individually. Together with PFBS, they were also regulated as a mixture.
The EPA will retain standards for PFOA and PFOS, the two most-studied of the chemicals. However, in a separate rule-making, the agency is proposing to give water utilities more time to comply, extending the deadline by two years, until 2031. The agency says the move will โease the implementation burdenโ financially and administratively for water systems and might allow for cheaper treatment technologies to come to market.
Water utilities must apply for an extension. One of the considerations is whether an extension would pose an โunreasonable risk to health.โ The EPA is proposing that PFOA and PFOS levels below 12 parts per trillion would not be unreasonable. (The federal standard for both is 4 ppt.)
The EPA wants public comment on whether interim utility actions during a compliance extension โ point-of-use treatment, filtration pitchers, education, alternative water sources โ can mitigate health risks above 12 ppt.
Water Infrastructure Funding Cuts A House spending bill cuts the two main federal sources of water infrastructure funding by about 24 percent in fiscal year 2027. The bill passed out of subcommittee last week.
The bill provides $1.2 billion for the Clean Water State Revolving Fund (27 percent cut) and $911 million for the Drinking Water State Revolving Fund (19 percent cut).
Following a recent trend, about half of the appropriation comes in the form of earmarks. This money will go directly to specific projects and will not enter the revolving fund. Water industry advocates argue that continuing to take earmarks out of the revolving fund appropriation threatens the viability of the program.
Studies and Reports
The South Platte River Basin is shaded in yellow. Source: Tom Cech, One World One Water Center, Metropolitan State University of Denver.
Great Plains Water Fight The federal governmentโs top lawyer recommended that the U.S. Supreme Court take up one of Nebraskaโs claims that Colorado is violating the South Platte River Compact, which divides the riverโs water between the two states.
Nebraska argues that Colorado is breaking three articles of the compact. The U.S. solicitor general says that the high court, through a special master, should pursue only one of them: that Colorado is allowing irrigators to take too much water.
โA claim that one State has deprived another of water to which it is entitled under an interstate compact is a quintessential case for this Courtโs original jurisdiction,โ the brief states.
Atlantic Hurricanes NOAA is forecasting a less active Atlantic hurricane season. The agency estimates that one to three major hurricanes (Category 3 or higher) will form.
The category ratings can be misleading. They measure wind speed, not precipitation. Tropical storms and minor hurricanes can still inflict serious flood damage.
Air Conditioning Estimates The U.S. Census Bureau published data estimating how many homes use air conditioning.
States with the lowest air conditioning use are in New England and the West.
On the Radar
EPA on Data Centers and Household Wells Under oath at a House subcommittee oversight hearing, Jessica Kramer, head of the EPA Office of Water, committed to investigate impacts to drinking water quality from data center construction.
โWhatever type of construction it is, itโs a priority to ensure that water quality standards established by EPA are being met. So weโll be looking into that certainly,โ Kramer said.
Kramerโs commitment at the House Energy and Commerce hearing was prompted by Rep. Alexandria Ocasio-Cortez (D-NY) who asked about water pollution from data center construction.
Ocasio-Cortez visited Morgan County, Georgia, a few weeks ago. She returned with jars of brown water from household wells near the construction site of a Meta data center. She displayed those at the hearing.
โThis is what the drinking water now looks like, next to that data center,โ Ocasio-Cortez said.
โAs soon as I get back to the office, I will be looking into exactly what you just talked about,โ Kramer replied.
Army Corps Deauthorized Projects The Army Corps published a list of water projects that it intends to deauthorize.
These are projects that were authorized years ago but either havenโt ever received funding or havenโt recently received funding.
Public comment on the proposal runs through August 19. Submit comments at http://www.regulations.gov using docket number COE-2026-0034.
Federal Water Tap is a weekly digest spotting trends in U.S. government water policy. To get more water news, follow Circle of Blue on Twitter and sign up for our newsletter.
The cover of a new book Iโve just published, Storm in My Head, a collection of poetry written over the 60 years Iโve been living in the headwaters of the Colorado River, since 1966 — George Sibley
This is the cover of a new book Iโve just published, Storm in My Head, a collection of poetry written over the 60 years Iโve been living in the headwaters of the Colorado River, since 1966. My 60-year celebration. Those of you who prefer your literature in sprints and strolls over the marathon essays I impose on you might enjoy this book. Iโm in the process of getting it distributed, and it may eventually be in a bookstore near you or on Amazon; but for the time being, if you are interested, an email to me, george@gard-sibley.org, will initiate a response on how to get a little money to me (10 bucks plus shipping) to get an inscribed copy wending its way to you.
End of advertisement โ back to the riverโฆ.
Romancing the River โ Elephants in the River
The Colorado River situation is moving toward replacing the existing โInterim Guidelinesโ for managing the river system with a new set of interim guidelines for managing the river system. This new set is devised mostly by the Bureau of Reclamation, which is growing a little desperate to avoid the embarrassment of having its river system cause the flow of the river to stop โ โdead poolโ โ behind one or another of its big dams, in a river management system built for a considerably larger Colorado River โ now as mythic a river as the biblical four that flowed out of the Garden of Eden.
All this makes me think Iโll briefly abandon my historical update of Frederick Dellenbaughโs Romance of the Colorado River, and try to sort through what has been happening recently in the present, most of which weโve been reading or hearing about in the media.
Reports on the riverโs flow after the Weirdest Winter Ever (at least in recorded time) have just gotten worse and worse; now the anticipated inflow to Powell Reservoir is 13 percent of the thirty-year average, from tributary runoffs that peaked as much as two months earlier than the usual early June. The Bureau of Reclamationโs 24-month projection indicates that, if last yearโs releases from Powell were replicated this year, they might have to stop generating power by late summer to protect the power turbines โ which in effect declares the remaining quarter of the reservoirโs potential storage โdead pool,โ since the only other way past Glen Canyon Dam is through four outflow tubes of questionable viability that the Bureau would like to use as little as possible.
The Bureau will address this with two emergency measures: first, by bringing a large quantity of stored water down the Green River from Flaming Gorge Reservoir, and second, by cutting releases from Powell Reservoir by close to two million acre-feet (maf) โ which in turn will leave Mead Reservoir lower and diminish its power generation. This is an emergency plan that can nowise be considered long-range planning.
The Lower Basin states in turn have bumped up their willingness to take more shortages for the next couple years by roughly doubling shortages they have already agreed to accept โ if the feds will pay them something for not using water that is not there. Their earlier cuts were basically just enough to finally start taking out of their individual allotments the system losses (mostly evaporation) they have been dismissing, with Bureau cooperation, as being met through โsurplus flowsโ that effectively disappeared when the Central Arizona Project came online in the 1990s.
The four Upper Basin states have responded by suggested that it might be time to bring in a facilitator or mediator to conduct the seven-state negotiations on future management planning. This launched an episode of fussing between the Lower and Upper Basins as to who first had that idea, with the other basin objecting to it. But no one seems to be totally opposed to the idea at this point, and it might happen.
Udall/Overpeck 4-panel Figure Colorado River temperature/precipitation/natural flows with trend. Lake Mead and Lake Powell storage. Updated through Water Year 2025. Note the tiny points on the annual data so that you can flyspeck the individual years. Credit: Brad Udall
But basically it all seems to be in reaction to an โemergencyโ water year, with no advance on more long-range planning โ and there is no reason to believe that this year in just a one-shot emergency like the 1977 water year. It is just the most extreme year in an extreme period โ the past quarter century โ that is probably the shape of the future in the Colorado River region, and there are no more Flaming Gorge reservoirs to draw down for the next emergency yearโฆ.
Itโs probably important to remember a distinction: there is a river, the Colorado River, and we have overlaid on that river a management systemfor managing the riverโs water for its human uses, a system whose parts either store water or distribute stored water to users. But we do not directly โmanageโ the river itself, which runs according larger โoperatorsโ โ to global climate factors that we can inadvertently change but do not directly control, to what is happening to precipitation that falls in the riverโs watersheds, and to how much what lives on the land (including us) interacts with the flow both on and below the land surface.
That last point โ the water โon and below the land surfaceโ โ strikes me as very important but largely ignored in the stalemated negotiations. You remember the metaphor of โthe elephant in the roomโ: a big thing that everyone in the room is trying to ignore because to acknowledge it is to open a can of worms? (Sorry, mixing metaphors here.)
Well, we have โelephants in the riverโ โ or rather maybe in the โboxโ containing the sacred Law of the River, through which we try to manage to the river. Thatโs the box that weโre all supposed to be โthinking outside of.โ Beginning to work โoutside the boxโ on anything will open a can of worms, butโฆ are we going to have any choice, further down the road when it will be even harder if the elephants in the river continue to be ignored?
Trying to think in an integrated way of the water under the land as well as that on the land is one of our elephants in the river. We need to keep in mind the distribution of the freshwater all land-based life depends on (basically a solar-distilled three percent of the oceanโs water). In our times more than half of the freshwater on the planet is โbankedโ in mountain glaciers and the ice sheets of the polar regions and Greenland โ although this fraction is gradually diminishing under the changing climate. Of the remaining 35-40 percent, most of it is groundwater โ water that soaks into the land, nurturing nearly all of the plant life that is the foundational food, fuel and housing supply for the animal kingdom (including us). This leaves only a small fraction of the water on the surface โ lakes, wetlands, streams and rivers โ and this is also a diminishing fraction, as the warming climate increases sublimation and evaporation from all waters exposed to the sunโs increasing power.
Typical water well
Yet that is also the fraction of freshwater over which nearly all the human squabbling is happening. For a long time, until the last century-plus, that was all the water that most of the animal kingdom could access, but now we have โ and use, not wisely โ pumps that make the groundwater accessible too.
We also know that most of that small fraction of surface water is pretty intimately connected to the groundwater. A river is not just a drain for water that failed to soak into the ground; as a river runs through its low-elevation course in a watershed, it constantly interacts with the groundwater, gaining water when the land is wet and the ground is full of water, and giving water to the land, as gravity permits, when the land is dry.
Healthy mountain meadows and wetlands are characteristic of healthy headwater systems and provide a variety of ecosystem services, or benefits that humans, wildlife, rivers and surrounding ecosystems rely on. The complex of wetlands and connected floodplains found in intact headwater systems can slow runoff and attenuate flood flows, creating better downstream conditions, trapping sediment to improve downstream water quality, and allowing groundwater recharge. These systems can also serve as a fire break and refuge during wildfire, can sequester carbon in the floodplain, and provide essential habitat for wildlife. Graphic by Restoration Design Group, courtesy of American Rivers
This knowledge ought to drive us toward thinking of groundwater and surface water as a single water source โ not just our awareness that pumping the land dry will also diminish the river, but also our awareness that irrigating the chronically dry lands from the streams and rivers not only grows more plants and animal foods that the dry land could โ but some of that irrigation water also sinks below the root zone to recharge the groundwater. The city of Gunnison, where I live, bought a ranch adjacent to the city because the city leaders knew enough about alluvial water to know that their groundwater supply (several relatively shallow wells) depended on keeping that ranch under irrigation from the river — water mostly cleaned by the ground it passes through.
But back to the Colorado River, the fraction of the water that does not soak into the land is a larger fraction than you would find in gentler lands primarily because most of the water falls on mountains in winter as snow, which melts in a relatively short time period as the weather warms, too fast for all of it to sink into land that is often too steep or too rocky for absorbing it anyway. But even in that โrunoff period,โ scientists are learning that a lot of the water in the stream in the โspring floodโ season is groundwater flowing in from saturated lands.
Despite knowing all this, however, we persist in fighting over the fraction of freshwater that flows in the riverโs watersheds through the year in the Colorado River region (natural basin plus out-of-basin extensions), and pay little in a basin-wide way to the use and abuse of groundwater. Only Colorado โ to the best of my knowledge โ has tried statewide to legally integrate the use of surface waters and groundwater: since 1969 all groundwater users had to acquire water rights, in the same priority system with surface water users. And โ before there was easy access to computers and spreadsheets โ all groundwater uses going back almost a century were also integrated into that priority system, a massive โcan of wormsโ to negotiate.
Whatโs been happening in Colorado for 35 years then is the beginning of the intelligent management of an integrated surface-and-groundwater supply โ apparently far too intelligent for the Trumpish agri-industrialists of the two largest Colorado River water users, Southern California and Arizona. Arizona was forced to develop a groundwater management plan (1970) for the areas of Arizona that would be served by the federal Central Arizona Project, in order to get Congress to pass the project; but the rest of the state has been pumping groundwater at prodigious rates, with surface subsidence as evidence of collapsing emptied aquifers that are lost forever. Most of Californiaโs groundwater overpumping is up in the Central Valley, not โservedโ by the Colorado River, but as Colorado River flows inexorably diminish in a warming world, there will be growing temptations to pump in the Imperial and Coachella Valleys.
I have not found figures for the amount of unregulated groundwater โminingโ that goes on in the Colorado river region, but the number and volume of aquifers that have collapsed and been lost due to water-mining would probably go a long way toward filling Mead and Powell Reservoirs. And if you pause for a second and think about it, storing water underground is probably better than storing it in open reservoirs under a desert sun.
That is not the only elephant in the Colorado River โ and most of them lead back, one way or another to the Colorado River Compact. The โtemporaryโ two-basin division that has clearly become toxic. Acknowledgement that the compact commissionโs original goal of a seven-state division is not just possible now, but has been realized, to everyoneโs discontent, making the two-basin division nothing but a battleground. Acceptance of the fact that the diminished river will continue to diminish so long as we continue to put greenhouse gases into the atmosphere faster than the planet can absorb them. Acknowledgment of the fact that as the planet warms, surface storage in big desert reservoirs is a bad idea that will get worse. Acceptance of the fact that the reconvening of a compact commission is overdue, to formalize the seven-state division and its appropriative consequences. And maybe the biggest worm-can of all: are some reasonable, even moral, limits on the appropriation doctrine possible?
Weโll look at some of these other elephants in future posts here โ which I think is where the โromance of the Colorado Riverโ is today. I also think we will never have a workable resolution to our current river-system problems until we take on the elephants and bump our own consciousness of water in the arid regions up a notch from the naive โconquest of the desert.โ
Map of the Colorado River drainage basin, created using USGS data. By Shannon1 Creative Commons Attribution-Share Alike 4.0
Udall/Overpeck 4-panel Figure Colorado River temperature/precipitation/natural flows with trend. Lake Mead and Lake Powell storage. Updated through Water Year 2025. Note the tiny points on the annual data so that you can flyspeck the individual years. Credit: Brad Udall
Click the link to read the article on the KVNF website (Brody Wilson). Here’s an excerpt:
May 19, 2026
A special mid-year West Slope Water Summit brought together water managers and community leaders to address a dire water year. Projected inflows into Lake Powell are expected to be well below half of normal โ and negotiations over the river’s future remain unresolved.
A special mid-year West Slope Water Summit convened this week in Montrose โ called early because the situation couldn’t wait until November. Montrose County Commissioner Sue Hansen organized the gathering after attending the Colorado River District’s State of the River address. She told attendees it was time to step up the urgency.
“This year is the first year that I am not optimistic,” Hansen said. “This is unprecedented and perhaps sobering for all of us.”
[…]
“The Lower Basin has put out, maybe you guys have heard of this, bridge proposal a couple weeks ago that in my opinion is a joke,” she said.
Her frustration centers on the math. The proposal calls for reducing water use by 3 million acre-feet over two years. But Flinker says that’s nowhere near enough โ the river needs cuts of at least that much every single year. At the heart of the standoff is a hard reality. There is currently much less water in the river than we have been using, and no one anticipates that changing any time soon.
As Flinker puts it, “Well, I can speak for myself and you probably have the same opinion. Who wants to reduce their water usage? Right? No one. And the Lower Basin has used over 10 million, close to 11 million, acre-feet out of this river every year, much above their allocation. They don’t want to use less – especially when it’s not a little less – it’s like half, right?”
Lake Powell is formed by Glen Canyon Dam. In a concept pitched by a conservation organization, a flexible pool of water could be moved between Upper Basin reservoirs to wherever itโs needed most. CREDIT: HEATHER SACKETT/ASPEN JOURNALISM
An environmental organization is floating a concept that could help the Colorado River system during extremely dry years like this one and keep the nationโs two largest reservoirs above critical thresholds.
Boulder-based Western Resource Advocates has released a concept paper that explores the idea of a flexible pool of water that can be moved wherever itโs needed most among the basinโs biggest reservoirs.
Water users in the Lower Basin states โ California, Arizona and Nevada โ currently have about 3.2 million acre-feet stored in Lake Mead through voluntary conservation and efficiency measures. Water users bank water in this pool, known as the Intentionally Created Surplus, and can take this water back out again to use under certain circumstances.
The paperโs authors โ John Berggren, a regional policy manager with Western Resource Advocates, and Kevin Wheeler, principal and engineer with Water Balance Consulting โ used the ICS pool as an example to explore how the idea would work. They say that if the ICS pool could be moved from Lake Mead to Lake Powell, the U.S. Bureau of Reclamation could have a buffer to more easily protect Glen Canyon Dam infrastructure, minimize the need for large releases from upstream reservoirs and reduce the risk of litigation among the seven basin states that share the Colorado River.
โIf you took a million or two million acre-feet out of Mead in the form of a conservation pool and moved it to Powell, then you could protect Powell without having to do all the DROA and the 6e releases,โ Berggren said. โThis is a perfect year where we would like to have the flexibility to move this water wherever itโs needed most, in this case in Powell.โ
Berggren is referring to the actions that the federal government is taking this year: releasing up to 1 million acre-feet from Flaming Gorge Reservoir to prop up Powell, as well as reducing releases down to just 6 million acre-feet from Powell instead of the originally expected 7.48 million acre-feet. Projections from Reclamation show the reservoir falling below 3,500 feet by this summer if these actions arenโt taken, jeopardizing the ability to make hydropower at Glen Canyon Dam.
This is a pivotal moment for the Colorado River Basinโs 40 million water users, with a historically bad snowpack and streamflows pushing reservoir levels to new lows and management into crisis mode. The seven states that share the river have not been able to reach an agreement for how reservoirs will be operated and shortages will be shared after the current framework expires this year. The feds are poised to step in with their own management rules, but the actions they are allowed to legally take may not go far enough to keep the system from crashing.
Graphic credit: Aspen Journalism
An invisible pool
Berggrenโs paper lays out a surplus pool that would be flexible and โoperationally neutral,โ and would be separate from the rest of the stored water in both reservoirs. That means it wouldnโt count toward calculations of how much water is in Lake Powell or Lake Mead for the purpose of determining how water shortages would be shared.
There isnโt a way to physically move water upstream, but according to WRA, water could be transferred between reservoirs through adjustments to dam releases and careful accounting. A pool could be โmovedโ from Mead to Powell by holding back water in Powell. It could be moved back to Mead by increasing releases from Powell.
The concept paper does not advocate for taking such actions this year, presenting them as a potential strategy to be used under a new river management framework that is being hashed out between the states that share the river and the federal government.
โThere are a lot of concerns about operational neutrality, but weโre trying to show that itโs actually not that scary and can provide benefit with less risk than the current options,โ Berggren said.
Reservoir levels in Mead currently determine how deep cuts to the Lower Basin states are; as Mead is drawn down, it triggers deeper cuts. Some water experts have said the ICS pool allows Lower Basin water users to game the system. By leaving their water in the ICS pool, it keeps reservoir levels artificially high and lets water users avoid taking deeper cuts. If the ICS pool had remained separate from the rest of Lake Mead, shortage triggers and mandatory conservation would have happened earlier.
Making this pool โoperationally neutral,โ or invisible to reservoir operations, fixes this issue.
In a proposal submitted to the federal government May 1, the Lower Basin states expressed support for this concept, but they did not lay out a plan to implement it.
โThe goal is to achieve operational neutrality of ICS,โ the submittal reads. โThe Lower Division States will continue to determine when and how to convert ICS to operational neutrality at higher elevations in Lake Mead.โ
They also said the long-term goal is to create an operationally neutral common pool of new water savings to be strategically deployed at low elevations to help delay and offset additional reductions to the Lower Basin.
Some experts say there are concerns and unanswered questions about these types of pools. The dividing line where water delivery is measured from the Upper Basin (Colorado, New Mexico, Utah and Wyoming) to the Lower Basin is Lee Ferry, just downstream of Lake Powell. Water measured at this location determines whether the Upper Basin remains in compliance with the 1922 Colorado River Compact. Moving water between reservoirs would have to deal with this issue.
โYou would just have to agree on the rules of when is it considered a delivery at Lee Ferry and when isnโt it a delivery at Lee Ferry,โ said Colorado River expert and author Eric Kuhn.
Another problem is that removing the ICS pool from reservoir accounting would leave a 3.2-million-acre-foot hole in Lake Mead that would need to be filled.
โItโs hard to get there because there isnโt a way to make ICS operationally neutral unless you impose the shortages that would occur if the ICS werenโt there,โ said Kathryn Sorensen, director of research and professor of practice at the Kyl Center for Water Policy at Arizona State University. โI donโt know how else you can do it. You have to pay the piper.โ
The infamous bathtub ring around Lake Mead can be seen in this photo of the intakes at Hoover Dam in December 2021. A conservation organization says flexible pools could be used to โmoveโ water from Lake Mead to Lake Powell, where water levels could be critically low this year.ย CREDIT:ย HEATHER SACKETT/ASPEN JOURNALISM
Lower Basin proposal
Last week, the Lower Basin states submitted a proposal to Reclamation to operate the reservoirs through 2028 that includes more conservation. This short-term deal could provide a temporary fix while states continue to hammer out a long-term strategy to share the river.
The Lower Basin states are proposing to cut another 700,000 acre-feet of water per year through 2028, on top of the 1.5 million acre-feet they had already promised. California and Arizona will each take another 300,000 acre-feet of cuts and Nevada will take a cut of 100,000 acre-feet. The proposal does not include any mandatory conservation from the Upper Basin.
โIt was a monumental undertaking in a very short time frame to come up with all of this,โ said JB Hamby, Californiaโs lead negotiator. โWe need a bridge to the future, and we welcome and look forward to an opportunity for a full seven-state deal where all states are part of the solution.โ
The Lower Basin proposal also says that this yearโs release from Flaming Gorge to prop up Powell should be as close to the maximum amount of Reclamationโs rangeof 1 million acre-feet as possible. The proposal also calls for increasing releases from Lake Powell if hydrology and projected reservoir levels improve.
โThe intent under improved hydrology is to share the benefits of improved hydrology between both basins,โ the proposal reads.
Coloradoโs negotiator, Becky Mitchell, said in a prepared statement that the Lower Basinโs proposal for water-use reductions is a good first step but they still call for too much water to be released out of Lake Powell and other Upper Basin reservoirs.
โThe Lower Division Statesโ proposal would also drain the Upstream Initial Units with limited opportunities for recovery,โ Mitchellโs statement reads. โLake Powell should properly be viewed as a savings account for the Lower Basin: The Lower Basinโs own resiliency depends upon it. The entire Basin should support sustainable, supply-driven operations at Lake Powell that rebuild storage.โ
Upper Basin officials have proposed a mediator to help move the needle on talks about future management to try to get to a seven-state deal.
Berggren said that although the concept of a flexible, floating pool doesnโt solve the basic supply-and-demand problem on the Colorado River, itโs still an important tool for future management.
โThere are a bunch of other things needed, including Lower Basin users and Upper Basin users using less water overall,โ Berggren said. โThis is just one component. But it helps provide some benefit in dry years like this one.โ
As the keynote speaker at the Arkansas River Basin Water Forum in Salida, Upper Colorado River Commissioner Rebecca Mitchell spoke about the Colorado River crisis and water-use negotiations among the seven Colorado River Basin states. Photo credit: Joe Stone/Heart of the Rockies Radio
As the keynote speaker at the Arkansas River Basin Water Forum in Salida, Upper Colorado River Commissioner Rebecca Mitchell spoke about the Colorado River crisis and water-use negotiations among the seven Colorado River Basin states.
Following a warm winter with the lowest snowfall on record, Colorado faces a dire water-resource challenge. Mitchell acknowledged these unprecedented conditions and repeatedly avowed hydrologic reality in the Colorado River Basin as the basis for administering water use.
The 1922 Colorado River Compact governs water allocations in the Colorado Basin and delineates Upper Basin states โ Wyoming, Utah, Colorado and New Mexico โ and Lower Basin States โ Nevada, Arizona and California.
Negotiated during one of the Basinโs wettest known climate patterns, the Compact allocates 7.5 million acre-feet of Colorado River water to the Upper Basin states. The Lower Basin allocation is 7.5 million acre-feet from the Upper Basin plus a million acre-feet from Lower Basin tributaries.
โLetโs look at the numbers,โ Mitchell said. โEven in the most recent years โฆ with reservoirs near the brinks of collapse,โ Lower Basin water use was almost 11 million acre-feet in 2021, 2.5 million acre-feet more than the Lower Basinโs allocation. That overuse is based on โa very flawed legal opinion,โ not science.
By contrast, the Upper Basin states cut usage by almost a million acre-feet from the previous year, using less than 4 million acre-feet, or 3.5 million acre-feet less than their allocation.
Mitchell also compared annual water flows into Lake Powell with the amount of water that the U.S. Bureau of Reclamation released from Lake Powell. โSixteen out of 20 years, more water left Lake Powell than came in. That mass balance equation simply doesnโt work.โ
Those excessive water releases โwere not tied to what was happening with hydrology,โ she said. โThey were tied purely to the reservoir elevationsโ established by the 2007 Interim Guidelines โand releases that were desired by the Lower Basin.โ
Other numbers Mitchell cited include reservoir levels for recent years in which the Lower Basin states used more than their water allocations under the Compact.
In 2000, โyou can see Powell is about 86% full. And you look at where we are in 2025, and weโre predicted to be in an even worse situation at the end of this year. โฆ This didnโt work. You see a steady decline.โ
The Interim Guidelines โincentivized pulling down Meade so more water would come from Lake Powell. That put us in the situation that we are in today,โ Mitchell said. โThese guidelines didnโt respond to real world hydrology. They incentivized use โ unsustainable use โฆ and they prioritized one basin over the otherโ โ i.e., the Lower Basin over the Upper Basin.
As a result, โtwo countries are struggling. Forty million people are struggling. Thirty tribes havenโt been at the table before this, (and they) deserve to be. This wasnโt the way to get security for the Western United States.โ
The solution, she emphasized, is having flexibility to adapt to changing conditions across the entire Colorado Basin by planning for variable operations. Coloradoโs Prior Appropriation (Priority) System, embedded in the Colorado Constitution, requires that flexibility.
Coloradoโs Priority System has produced a system of year-round real-time administration of water use based on legal priority.
โYou all know the Priority System,โ Mitchell said. โThere is a priority system in the Lower Basinโ that โhas been used โฆ yeah, zero times. โฆ
โI think the truth is important, and facts are important. Science is important. โฆ (The Lower Basinโs) overuse essentially put us in the situation that we are in today. โฆ Weโre in this together. But we have to pivot to that.
โAnd we have to engage the tribal nations and Mexico. We canโt do this the way that we have done it before. โฆ One user is not more important than the other users, one side of the Basin is not more important than the other side of the Basin.โ
Upper Basin states, led by Colorado, have proposed multiple collaborative, science-based approaches to resolving the Colorado River crisis, but โthe Lower Basin is coming up with yet another one of their own plans that involve our resources. โฆ
โTheyโre irresponsible. Theyโre not doing enough.โ Their rhetoric โputs all of us at risk. And I think we have the responsibility to do better. โฆ One of the things that weโve always done is really look at what we can do based on the resources that we have โ the systems that we already work under.โ
Mitchell insisted that the Upper Basin states had put on the table โa generous rule curve of releases from Powellโ as well as upstream reservoirs like Blue Mesa and Flaming Gorge.
โNow that we know a year like this is possible, we need to factor that in and be prepared for that. โฆ We have to figure out how do we save in the good years so we can get through the years like this year? โฆ
โI was just in Grand Junction. I had grown men come to me crying. They know this year is going to suck. Literally. And if we donโt acknowledge that as part of our path forward, then weโre really not acknowledging who we are, and weโre also not acknowledging what needs to be done.โ
Udall/Overpeck 4-panel Figure Colorado River temperature/precipitation/natural flows with trend. Lake Mead and Lake Powell storage. Updated through Water Year 2025. Note the tiny points on the annual data so that you can flyspeck the individual years. Credit: Brad Udall
Udall/Overpeck 4-panel Figure Colorado River temperature/precipitation/natural flows with trend. Lake Mead and Lake Powell storage. Updated through Water Year 2025. Note the tiny points on the annual data so that you can flyspeck the individual years. Credit: Brad Udall
Click the link to read the article on the AZCentral website (Brandon Loomis). Here’s an excerpt:
May 14, 2026
Key Points
The U.S. Bureau of Reclamation is now seeking a 10-year water-sharing plan for the Colorado River states, adjusting cutbacks every two years.
A worst-case scenario being modeled could slash water shares for Arizona, California and Nevada by 40%.
The Lower Basin states have proposed their own conservation plan, which could cover the first two years of the new federal framework.
Unable to get Colorado River states to hash out a new 20-year deal to share in worsening water shortages, the U.S. Bureau of Reclamation has told them itโs now aiming for a 10-year plan with prescribed cutbacks to be reassessed every two years. Federal officials informed the seven states of their new preference late last week, and Arizonaโs lead negotiator made it public on Wednesday, May 13, during a meeting of a committee representing the cities, tribes and other water users who meet to develop a unified state position.
The shift to what could effectively become five two-year plans carries both opportunities and risks for Arizona. On the one hand, state Water Resources Director Tom Buschatzke said, it means a proposal that the Lower Basin states โ Arizona, California and Nevada โย recently submitted to boost their conservation through 2028 could cover the first two-year term if federal officials agree. That would keep water moving through the Central Arizona Project Canal, an economic lifeline that is at risk under some other scenarios. On the other hand, a move to bite-size plans โhas us in a room negotiating for the next 10 years,โ Buschatzke said at a meeting of the Arizona Reconsultation Committee. โThatโs not something that creates the certainty that weโve heard some people desire.โ
[…]
New rules are necessary because the shortage-sharing guidelines that covered the last 20 years expire this fall โ and because the river keeps shrinking along with aย paltry snowpack in the Rocky Mountains. A deepening shortage has increased the stakes, keeping a consensus deal out of reach…In pitching their new 10-year “framework,” federal officials also informed the states that they intend to at least model the potential effects of a 3 million acre-foot annual reduction to what the three Lower Basin states could pull from Lake Mead. That worst-case scenario would slash 40% from what the century-old Colorado River Compact promised those Lower Basin states, and it could dry up the CAP Canal. Itโs nearly twice the reduction that those states offered in their recent proposal…A 10-year program with a broad menu of potential guidelines that update every two years allows flexibility to adapt to both the changing hydrology and the potential for a political breakthrough on a consensus deal, [Alex] Smith said.
Map of the Colorado River drainage basin, created using USGS data. By Shannon1 Creative Commons Attribution-Share Alike 4.0
In this special episode, SNWA General Manager John Entsminger joins City Cast Las Vegas Podcast host Jesse Merrick to discuss how the aging Law of the River is colliding with a modern climate. ๐ง: https://t.co/uTIfvvnCKbpic.twitter.com/n6Jio3BBFD
— Southern Nevada Water Authority (@SNWA_H2O) May 13, 2026
A new concept paper from experts at Western Resource Advocates and Water Balance Consulting shows that flexible water conservation pools can help get the Colorado River through dry years like this one.
The Colorado Riverโs two major reservoirs are approaching historic lows, threatening the infrastructure that delivers water and hydropower to communities across the West. The current tools to address the problem are limited.
The guidelines for managing the river expire this year. There are several management alternatives being considered that incorporate new flexible conservation pools.ย
A new concept paper shows how these pools can protect the Colorado River Basin and minimize conflict in critically dry years.
Imagine that youโre about to overdraw your checking account. Would you transfer money from your savings to avoid overdraft fees? Cut back on your spending?
Water managers on the Colorado River are faced with a similar problem, and few people are happy with the options available.
The Colorado River Basin just experienced its warmest winter on record. Snow water equivalent, or the amount of water in snowpack, is on track to be one of the lowest on record. An unprecedented March heat wave quickly melted much of what little snow was available to feed the river. And the West is projected to continue getting hotter and drier in the coming years.
The Colorado River Basin isnโt dealing with a temporary water shortage, itโs bankrupt.
The riverโs two major reservoirs โ Lake Powell and Lake Mead โ were constructed with a much bigger river in mind. Today, these reservoirs are approaching historic lows, threatening the infrastructure that delivers water and power to communities across the West. The Bureau of Reclamation forecasted that Lake Powell could drop below 3,500 feet, or the level needed to protect hydropower production, this summer if no actions were taken.
We are about to overdraw the account, resulting in significant consequences for the West.
Figure 2. Diagram showing schematic of Glen Canyon Dam elevations at which Lake Powellโs waters can be released downstream, and the volumes of water defined by these elevations. Active storage between 3370 and 3500 ft is not realistically accessible for continuous downstream release without risk to engineering infrastructure at the dam and powerplant. Hydroelectricity cannot be produced below 3490 ft, and 3500 ft has been established as a minimum safe level for intake through the penstocks.
Under current management guidelines, Reclamation only has two options to put more water in Lake Powell, and both come with drawbacks. The first is to release water from upstream reservoirs into Lake Powell. This is a stopgap measure โ like drawing on your savings account to cover an unexpected expense. There are limits to how much water can be moved and how often. Upstream reservoirs must be allowed to refill after the water is transferred to Lake Powell.
The second option is to reduce Lake Powell releases. However, holding too much water in Lake Powell could trigger litigation from the Lower Basin states as soon as this fall, claiming that the Upper Basin is violating the Colorado River Compact.
Reclamation announced in late April that it will be using both options simultaneously keep water levels in Lake Powell from dropping below 3,500 feet. The agency plans to release between 660,000 and 1 million acre-feet of water from an upstream reservoir while reducing Lake Powell releases by 1.48 million acre-feet. While Reclamation is trying to protect the river with limited tools, the Basin states are not thrilled with the plan. The Upper Basin was quick to point out that increased releases from upstream reservoirs will have significant impacts on local economies and is not an action that can be taken year after year. Meanwhile, the Lower Basin says withholding additional water in Lake Powell could lead to the Upper Basin violating the Colorado River Compact.
The plan also might not work. It is expected to keep Lake Powell just above 3,500 feet โ dangerously close to the hydropower intakes. This could potentially draw air into the intakes, damaging equipment and resulting in a complete loss of hydropower production.
The riverโs current management guidelines are clearly no match for climate change. We are drawing down our savings in the hope of just barely making ends meet. It might not be enough, and itโs not something we can afford to do every year.
A NEW WAY FORWARD
The river is undergoing dramatic changes. What if we had a new management tool that allowed us to change with it?
WRA worked with Kevin Wheeler at Water Balance Consulting to find out.
We found that flexible water conservation pools can help maintain critical reservoir elevations and minimize the need to release large volumes of water from upstream reservoirs, while also not exasperating compact compliance issues.
We looked at the Intentionally Created Surplus (ICS) program โ an existing water conservation program in the Lower Basin โ to explore how this might work.
Currently, the ICS program allows water users in the Lower Basin to save water and store it in Lake Mead through actions like increasing irrigation efficiency or fallowing farmland. There is a little over 3 million acre-feet of ICS water currently being stored in Lake Mead.
This water has the potential to provide enormous benefit to Lake Powell as well, but there are institutional barriers to moving it. The water level in Lake Mead is currently used to determine how much water is released to the Lower Basin. Under the current guidelines, moving ICS water out of the reservoir would lower Lake Mead and impact Lower Basin shortages.
The key to solving this problem is creating a conservation pool that is โoperationally neutral,โ allowing saved water to be moved between reservoirs without impacting Lower Basin shortages or affecting compact compliance. This would allow ICS water to be stored in Lake Mead or Lake Powell โ wherever it is needed to protect infrastructure and river health.
There is no infrastructure on the Colorado River to physically move water upstream; however, water can be transferred between reservoirs through adjustments to dam releases and careful accounting. For example, reservoir releases from Lake Powell could be physically reduced by 1 million acre-feet to โmoveโ 1 million acre-feet of ICS water upstream from Lake Mead to Lake Powell. Releases from Lake Powell could later be increased by 1 million acre-feet to physically transfer the water downstream back to Lake Mead.
Because this water is operationally neutral, it would not be considered when calculating Lake Mead water levels and so moving it would not affect Lower Basin shortages. It also would not affect the 10-year Lee Ferry average. On paper, it would be as though there was no reduction in Lake Powell releases to โmoveโ water upstream. This avoids exasperating compact compliance issues. This is in contrast to the operations Reclamation is undertaking this year, which will result in actual decreased Lake Powell releases, affect the 10-year Lee Ferry average, and bring compact implications as a result.
Our analysis shows that if a flexible conservation pool had been available this year, it could have significantly reduced the need to pull additional water from upstream reservoirs โ helping to address concerns raised by the Upper Basin states. It also would have minimized compact compliance implications โ helping to address issues raised by the Lower Basin.
The guidelines for managing the river expire this year, and there are several new management alternatives on the tablethat incorporate flexible conservation pools. Our analysis shows how these pools could work to protect the river and our communities in critically hot and dry years like this one.
Drawing down our savings isnโt going to work in the long term. We need sustainable solutions to ensure the infrastructure that delivers water and power to the West can function in dry years.
A person looks out over the Colorado River near Page, Arizona on November 2, 2022. The seven states that use its water are caught in a standoff about how to share the shrinking supply. They say they want to avoid a court battle, but some states are quietly preparing for that outcome. Alex Hager/KUNC
Click the link to read the article on the KUNC website (Scott Franz):
May 8, 2026
This story is part of ongoing coverage of the Colorado River, produced by KUNC in Colorado and supported by the Walton Family Foundation. KUNC is solely responsible for its editorial coverage.
A federal hydrologist appeared to be momentarily at a loss for words Thursday as he described how dire the latest forecast has gotten for how much water will flow through the Colorado River Basin this summer.
โReally no good news this winter,โ Cody Moser with the Colorado Basin River Forecast Center said before taking a long pause on a webinar.
Moser went on to describe how just 800,000 acre-feet of water is projected to flow into Lake Powell, the upper basinโs largest reservoir, through July. Thatโs 13% of its average supply. It would also be the lowest summer inflow in the reservoirโs history. The projected flows into Powell have dramatically decreased over the last two months.
The worsening outlook is driven by record-low snowpack around the west and a March heat wave.
โWe did see a cool down and a wetter April, but it pales in comparison to this five, six month stretch of just record warm and dry weather that we’ve seen,โ he said.
Falling water levels at Lake Powell recently prompted the Interior Department to take emergency measures to prop it up. The goal is to stop it from getting so low that it can no longer produce hydroelectricity for several states in the west. Some forecasts have it reaching that level as soon as this summer.
The rescue plan involves taking a massive amount of water from the Flaming Gorge reservoir on the Wyoming-Utah border upstream and sending it down to Powell.
Meanwhile, thereโs been some recent activity in the stalled negotiations involving how the water should be shared and conserved among the seven states depending on it.
The upper basin states have been at an impasse with the lower basin states over how much each basin should have to cut back its use.
Last week, Nevada, California and Arizona made a new short-term pitch for how to avert an ongoing crisis in water shortages.
The states said they would conserve as much as an additional one-million acre feet of water per year through 2028.
Coloradoโs water negotiator gave the new pitch a tepid response Monday.
Becky Mitchell said in a statement that the proposal is a โgood first step,โ but it would be โunsustainable.โ
โWhile the lower division states have made progress, more is needed to protect the Colorado River system now and into the future,โ she said. โThese differences highlight the urgent need to come back together with the help of a mediator.โ
Map of the Colorado River drainage basin, created using USGS data. By Shannon1 Creative Commons Attribution-Share Alike 4.0
From the Rockies to the Cascades to the Sierra Nevada, mountainsides across the West are sparsely covered by the snow that usually blankets the high country well into the summer.
That snowpack is like a savings account that the West draws on when the hot, dry months arrive. It moistens the landscape as it melts, lessening the risk of severe wildfire. The runoff feeds into river basins, and the swelling waterways provide power to hydroelectric dams, irrigation to farmers and drinking water to cities.
This year, Western states are heading into the summer with a desperately low balance โ threatening wildfires, drinking water, crops, electricity and more.
โThis has been an extremely poor year,โ said Sharon Megdal, director of the Water Resources Research Center, a research unit at the University of Arizona. โThis has gotten a lot of people concerned and alarmed.โ
While a late-season storm brought heavy snow to parts of the Rockies this month, the region remains in a deep snowpack deficit.
As warmer weather arrives, states are preparing for a dangerous wildfire season across the drought-stricken West. Farmers and cities are bracing for potential cutbacks in their water allocations from rivers that have less to give. Fisheries managers are watching for low river flows that could threaten vital salmon runs. And worsening conditions could threaten the supply of hydropower that provides cheap, clean electricity to many Western states.
A hot, dry winter
Across nearly the entire West, states spent the winter waiting for snow that rarely arrived. Ski resorts lost millions of visitors as they struggled to stay open. Then in March, a record-breaking heat wave settled across the region, shrinking the already paltry snowpack.
โItโs unheard of,โ Megdal said. โThings were already looking bad in January, but if you follow the projections, they had to keep revising the numbers downward because the snow just never came and we had this hugely hot period in March.โ
Westwide SNOTEL basin-filled map May 10, 2026.
The federal National Water and Climate Center produces a real-time map showing the snow water equivalent in river basins across the country โ a measurement of how much moisture is being held in those mountaintop savings accounts.
The majority of the West is bright red, indicating that snowpack is at less than 50% of the median level for this time of year. Yellow and orange cover most of the remaining areas, showing regions that are still well below the median.
The most recent U.S. Drought Monitor map shows most of the country in abnormally dry or drought conditions, aside from the Great Lakes region and some other parts of the Midwest.
West Fork Fire June 20, 2013 photo the Pike Hot Shots Wildfire Today
Wildfire
For many Western states, the most imminent threat from the dry winter is the prospect of a dangerous wildfire season.
Already, wildfires in Nebraska have burned hundreds of thousands of acres, shattering records and setting the stage for a record wildfire year.
The wildland fire outlook maps produced by the National Interagency Fire Center show above-normal fire risk spreading across much of the West by June and July.
โThereโs a lot of red on the map,โ said Matthew Dehr, wildland fire meteorologist with the Washington state Department of Natural Resources.
Dave Upthegrove, Washingtonโs public lands commissioner, said his agency is preparing for fire season as normal but with a heightened awareness that this summer could be demanding. Heโs focused on educating residents about the risks, noting that 90% of wildfires in Washington are caused by humans.
โWhat weโre likely to see are wildfires moving more quickly through forests,โ he said. โWhen we do have a large fire event, itโs likely to move faster, be more significant.โ
He also noted that this year is Washingtonโs fourth consecutive year of drought conditions, making trees more susceptible to diseases and pests and compounding wildfire risk.
Dehr said spring rains could provide a bit of a buffer before the heat of July and August, but a recent stretch of sunny weeks has yet to provide relief.
Upthegrove noted that the challenging conditions across much of the West could make it more difficult for states to send wildfire crews to each otherโs aid, if many states are battling big blazes simultaneously.
โAs the climate crisis pushes a forest health crisis pushes a wildfire crisis, itโs going to stress the whole system, not just in our state,โ he said.
Low water supplies
Many Western states also rely on snowpack to feed rivers that provide irrigation for farming and the water supply for cities. In particular, the Colorado River provides water for tens of millions of people across seven states, a region that has grown even as the riverโs supply has dwindled in recent decades. Reservoirs that were full at the turn of the century are now nearing critically low levels.
โThere hasnโt been enough flow in the river to meet all these expected demands, even in the good years,โ said Megdal, the water researcher. โWeโve used up our savings and storage, so now what do we do?โ
Water allocations for states, tribes and farmers in the region are governed by a complicated and fiercely contested system known as the Colorado River Compact. In recent years, cutbacks due to the low supply reduced the water allocation for central Arizona, including all of the water for agricultural users.
โItโs turning out to be very hard to get the states to agree on how to slice up a much smaller pie,โ Megdal said. โThere are scenarios that are not zero probability that are catastrophic to the region.โ
If the states are unable to reach an agreement, allocation for the riverโs diminished water will be determined by federal regulators under the โlaw of the river.โ Cutbacks imposed by the feds could fall heavily on central Arizona, Megdal said, cutting the supply for Phoenix, Tucson and some tribal nations.
Such uncertainty in the Colorado River basin and elsewhere โleaves farmers making planting decisions now without knowing whether sufficient water will be available to carry crops through harvest,โ the American Farm Bureau Federation wrote in an April report.
The lack of water could force farmers to remove trees or vineyards, the Farm Bureau noted, or reduce cattle herds if the parched landscape does not supply enough forage.
Meanwhile, rivers running at a slow trickle could reduce the hydroelectric power produced by dams across the West. Across 13 Western states, hydropower accounts for nearly a quarter of electrical generation.
The Glen Canyon Dam in Arizona, which forms Lake Powell, produces about 5 billion kilowatt-hours of electricity each year, enough to power nearly half a million homes. But the lake level may soon fall below a threshold from which the dam can no longer generate power.
โHydropower is so incredibly important because it has been the lowest-cost power for many in the West,โ Megdal said. โThere are big implications for the energy grid and the cost of electricity.โ
This story was originally produced by Stateline, which is part of States Newsroom, a nonprofit news network which includes Utah News Dispatch, and is supported by grants and a coalition of donors as a 501c(3) public charity.
Created by Imgur user Fejetlenfej , a geographer and GIS analyst with a โlifelong passion for beautiful maps.โ It highlights the massive expanse of river basins across the country โ in particular, those which feed the Mississippi River, in pink.
Arizona is preparing for a legal battle over its rights to Colorado River water.
Following an extraordinarily dry winter along the river basin and whatโs expected to be an exceptionally hot and dry spring across the West, where high temperatures in March have already blown past records, the pressure to maintain access to the stateโs fair share of river water is growing.
The Colorado River is a vital source of drinking water for 40 million people in the seven basin states, Mexico and 30 Native American tribes, and provides water for farming operations and hydroelectricity.
Reaching a water usage agreement is imperative to the basin states as the riverโs water supply continues to decline, as it has done for the past 25 years due to a persistent drought spurred on by climate change.
On Monday, the Arizona Governorโs Office announced that it had retained the law firm Sullivan & Cromwell to represent the state in possible litigation among the Colorado River Basin states and the federal government.
Sullivan & Cromwell is an international firm based in New York City that has represented big names like Microsoft, BP, Goldman Sachs and JPMorgan Chase. The state is using some of the $3 million it put into its Colorado River legal defense fund last year to retain the law firm.
The Governorโs Office doesnโt expect to take any legal action until June at the earliest, but wants to be prepared for the possibility, especially if the dispute ends up before the U.S. Supreme Court.
The Lower Basin states โ Arizona, Nevada and California โ and the Upper Basin states โ Colorado, New Mexico, Utah, and Wyoming โ have been negotiating an updated water usage agreement for more than two years.
But so far the states have blown past two deadlines to do so โ one in November and one in February โ and are quickly approaching October, when the existing usage agreement expires.
If the states canโt reach an agreement before that, the federal government will implement one of its draft plans, all of which would place an outsized burden on the Grand Canyon State.
Thatโs because the Central Arizona Project, a series of canals that supplies Colorado River water to the Valley and the Tucson area, is one of the newest users of the river water, making it legally one of the first to be cut.
But so far, the Upper Basin states have refused to agree to any federally mandated water usage cuts of their own. While the Lower Basin states insist that every state take their fair share, Upper Basin states have argued that theyโve never used their full allotment and already face regular cuts and shortages based on physical availability of water.
Arizona has offered to reduce its Colorado River allocation by 27%, California by 10%, and Nevada by nearly 17%.
Negotiators for Arizona also insist that the Upper Basin states be held to the original 1922 Colorado River Compact that requires them to release a 10-year rolling average of at least 75 million acre-feet of water to the Lower Basin, in addition to one-half of the annual allotment owed to Mexico, for a total of about 80.2 million acre-feet.
An acre-foot of water represents enough to cover an acre of land to a depth of one foot, or about 325,851 gallons. Thatโs enough to provide three homes in Arizona a year of water, on average.
So far, the Upper Basin states have held to the original release agreement. But as water levels in the two major reservoirs on the river, Lake Mead and Lake Powell, continue to decline, itโs expected that the Upper Basin states will be unable to meet that requirement as early as 2027.
When the states entered into the original Colorado River Compact in 1922, they allocated 7.5 million acre-feet of water each year to be shared by the Upper Basin states and another 7.5 million to be used among the Lower Basin states.
Since then, the states have updated their water usage guidelines several times, even though the apportionments remain the same. But Lower Basin states face cuts mandated by the federal government during times of drought and Upper Basin states do not. In 2025, for the fifth year in a row, the federal government imposed drought-based cuts, and Arizonaโs amounted to a loss of 512,000 acre-feet of water for the year.
Under current allocations, Arizona has rights to 2.8 million acre feet of water per year, and has implemented 800,000 acre feet in reductions per year. In contrast, Colorado has rights to 3.8 million acre feet a year, although it uses an average of 1.9 million acre feet, annually.
However, Colorado doesnโt always get that full allotment, because it relies mostly on melted snowpack for its water, which varies from year to year. This yearโs snowpack levels are historically low, forcing water providers in the Upper Basin to place restrictions on usage based on availability and state law.
Upper Basin states argue that they regularly deal with annual shortages based on physical availability and the state laws that govern how the Upper Basin water is shared, with average annual shortages of about 1.3 million acre feet.
The Lower Basin states have undertaken significant conservation efforts for Colorado River water since 2014 and have reduced their consumption from 7.4 million acre-feet in 2015 to just over 6 million in 2024.
The Upper Basin states have increased their usage in the past five years, from 3.9 million acre-feet in 2021 to 4.4 million in 2024. The federal governmentโs draft plans allow for the Upper Basin states to use even more water.
Gov. Katie Hobbsโs proposed budget for this year would put another $1 million toward the Colorado River Legal Defense fund, and lawmakers earlier this month gave preliminary approval to doing just that.
Even as Arizona prepares for a legal battle, the state plans to continue attempting to reach an agreement with the other river basin states, according to the Governorโs Office.
โGovernor Hobbs is committed to working with the federal government and other Colorado River states to deliver a negotiated settlement that protects Arizonaโs fair share of water and stabilizes the system,โ spokesman for Hobbs Christian Slater said. โHowever, itโs critical that Arizona be prepared to defend ourselves in court if an agreement cannot be reached or the Law of the River is violated.โ
Map of the Colorado River drainage basin, created using USGS data. By Shannon1 Creative Commons Attribution-Share Alike 4.0
From left, J.B. Hamby, chair of the Colorado River Board of California, Tom Buschatzke, Arizona Department of Water Resources; Becky Mitchell, Colorado representative to the Upper Colorado River Commission. Hamby and Buschatzke acknowledged during this panel at the Colorado River Water Users Association annual conference that the lower basin must own the structural deficit, something the upper basin has been pushing for for years. CREDIT: TOM YULSMAN/WATER DESK, UNIVERSITY OF COLORADO, BOULDER
Click the link to read the article on the Tucson.com website (Tony Davis). Here’s an excerpt:
May 5, 2026
The federal government has agreed to pump more than $450 million into programs to carry out additional Colorado River water conservation, Arizona Department of Water Resources chief Tom Buschatzke said Monday. The spending is necessary to makeย the new proposal from Arizona, Nevada and Californiaย work, Buschatzke and other water officials said Friday in releasing their offer to save 700,000 to 1 million acre-feet of river water through 2028. A million acre-feet is the equivalent of approximately 10 years’ worth of Colorado River deliveries to Tucson Water. The U.S. Interior Department proposed that the money be spent, and the U.S. Office of Management and Budget, which must sign off on all federal expenditures, approved it, Buschatze said at a news briefing Monday afternoon on the new plan from the three Lower Colorado River Basin states…J.B. Hamby, California’s Colorado River commissioner, said later Monday that what Buschatzke said is also his understanding of the federal government’s position. The federal funding offer would require the Lower Basin states to engage in a cost-sharing effort to contribute money to the water-saving scheme, Buschatzke said.
If someone were to be dropped from another planet into the North Fork Valley in western Colorado today, they would be forgiven for assuming there is not a water crisis. A thick carpet of green covers the valley floor, the irrigation canals are filled to the brim, trees are leafing out, the river is running and Paonia Reservoir is almost full, and the mountains are still graced with snow.
I didnโt even come from outer space โ I think โ and I find the contrast between the news reports of water shortages and restrictions and the on-the-ground situation here to be quite jarring. Is it possible that April precipitation has averted the calamity?
A green hay field on a mesa in the North Fork Valley in western Colorado. Jonathan P. Thompson photo.
Yes, a series of storms, some quite abundant, have moved through the Upper Colorado River Basin, boosting snowpack and soothing the desiccated earth. It has certainly felt cooler and wetter than normal, but that was mostly an illusion brought on by the abnormally dry winter and the searing March heatwave. And it hasnโt been nearly enough to offset the warm winter and the lack of snow, as the graphs below indicate.
As for the full ditches, I guess you could attribute that to a โmake hay while the water is availableโ sort of ethos. You might as well douse the fields and fill ponds while spring runoff is in full swing and the river still runs, knowing that it may not last beyond June. Meanwhile, Paonia Reservoirโs relatively healthy levels are the result of the Fire Mountain irrigation canal โ which relies on reservoir water โ being shut down for emergency repairs.
Meanwhile, there is a conspicuous absence here in this agricultural hotspot: There are no blossoms or fruit on apple, cherry, peach, or pear trees. The March heatwave sparked a spectacular orchard super-bloom. That was followed by a devastating freeze that killed all of the fruit, even in orchards where extreme preventative measures were taken, and even โburnedโ the leaves on some trees. Wacky weather indeed.
The North Fork of the Gunnisonโs May 1 snowpack this year is tied for the lowest on record with 2012.
The Animas River watershed did get enough of a boost to bring snowpack levels back up above 2002โs for this date. Source: NRCS.
Even with the recent storms, the Upper Colorado River Basin snowpack remained at record-low levels as of May 1. The previous low year (from 40 years of SNOTEL records) was 2012, with 2002 and 2018 not far behind. Source: NRCS.
๐ Colorado River Chronicles ๐ง
Phil Lyman, the former and hopeful Utah politician, recently posted this on Facebook:
Just to sum it up: Heโs knocking a federal program that pays willing farmers to voluntarily cut off irrigation to their fields in order to conserve water in an effort to balance Colorado River demand with the shrinking supplies. And heโs blaming it all on California.
Lymanโs general sentiment is not new, nor is it uncommon among water users in the Upper Basin states. In fact, itโs basically a clichรฉ. Since I was a kid Iโve heard folks saying something along the lines of: If we donโt use the water, itโll just run on down to California, where those L.A. folks will guzzle it up to fill their swimming pools and water their golf courses. Itโs a rather simplistic view, and one that doesnโt account for the realities of water law or the way the Colorado River system works. In other words, itโs just plain wrong, and a candidate for Congress โ as Lyman is โ should know better.
Udall/Overpeck 4-panel Figure Colorado River temperature/precipitation/natural flows with trend. Lake Mead and Lake Powell storage. Updated through Water Year 2025. Note the tiny points on the annual data so that you can flyspeck the individual years. Credit: Brad Udall
The Colorado River and its users have a problem: Demand for the water exceeds supply, and the supply is continually shrinking. Since boosting supply is not a feasible option, demand โ i.e. consumptive use โ must be reduced significantly. While everyone must make cuts, agriculture is the riverโs largest water user by far, meaning that sector is going to have to make the largest cuts, by volume. This isnโt about demonizing farmers or alfalfa, itโs not about whether Californians or Utahns are more deserving of the water. Itโs simple math.
The farm fallowing program is one way to cut consumption quickly by paying willing farmers to voluntarily forego irrigating some or all of their fields on a year-by-year basis. Itโs not ideal, but it is legal, voluntary, and can save junior water rights holders, including cities and towns throughout the watershed, from being forced to shut off their water intakes. And in no way is farm fallowing exclusive to Utah. Itโs occurring all over the place.
Letโs do a little fact-check of Lymanโs other points:
Farm fallowing in Utah is being done to benefit California, which โdemolished its water storage infrastructure.โย No and no. The goal here is to leave a little more water in the river, to keep the whole system from collapsing. Any amount conserved in one place will potentially benefit all other river users, as well as the river itself. Foregoing irrigation on a Utah farm, for example, could help keep the taps on in St. George or some other Utah community that relies on the river. Dams have been removed in California, most significantly four structures on the Lower Klamath River. But those were primarily for hydropower production, not irrigation or water storage, and they are far removed from the Colorado River or any associated water storage.
โPaying farmers not to feed us to bail out Californiaโs failures โฆโย Actually, the feds and state and other programs mostly are paying farmers not to grow alfalfa or hay, which feed cattle, and it has nothing to do with Californiaโs โfailures.โ Indeed, California grows a lot of alfalfa, too, but it also grows all kinds of vegetables โ far more than in Utah.
If the water saved in Utah does make it to the Lower Basin and California, then the biggest beneficiary would be โฆ farmers. Most of the water in the Lower Basin goes to the Imperial Irrigation District, where it is used for farming. Those farmers have also been part of the federal fallowing program, and have managed collectively to reduced their Colorado River water consumption by about nearly 1 million acre-feet since 2003.
Lyman calls for eliminating or restructuring federal farm fallowing programs.ย Iโm curious if heโs talked to the farmers about this, especially the ones who may lose their water and be forced to fallow anyway. Isnโt it better to get paid not to grow something than to not get paid for it?
โโฆ fight to end federal policies that separate water from the people who depend on it. Water rights are property rights.โย We all depend on water; the California farmers depend on water just as much as Utah farmers do. Furthermore, the California farmers also own their land, they have some of the most senior water rights on the Colorado River, and according to the โLaw of the River,โ they could likely go to court to force many Utah farmers to stop irrigating altogether, without compensation. The farm fallowing program does not separate water from the farmers, it simply pays them to temporarily forego irrigation.
โโฆ end the war on farm water.โย Look, there is not enough water in the Colorado River for everyone. Everyone will have to take cuts, but irrigated agriculture is the biggest user by far, and therefore will have to make cuts in order to balance supply and demand. Itโs simple math: All of Las Vegas and southern Nevada use less than one-tenth of the water that goes to the farms in the Imperial Irrigation District.
โโฆ propose that the federal government build and operate desalination plants in California to free up Colorado River water for Utah โฆโย Desalination will likely be a part of the Westโs water future, especially for coastal urban areas. But building the plants, and processing and transporting these kinds of volumes of water, would be outrageously expensive and energy-intensive, which would be especially harmful to farmers, who rely on cheap water.
***
The Bureau of Reclamation recently decreased Glen Canyon Dam releases from about 8,200 cfs to a steady 7,000 cfs (without the usual nighttime reductions). This appears to be the lowest sustained releases since the dam was built, and if continued throughout the entire year would lead to only 5 million acre-feet of annual releases, which would make the Lower Basin states even more grumpy and litigation-happy than they already are.
But not to worry, the feds are still on course to release 6 MAF for the water year, because they released about 10,000 cfs during January and February. Still, itโs going to change the complexion of rafting in the Grand Canyon, for sure, and it is certainly pushing the boundaries of the Grand Canyon Protection Act.
๐ธย Parting Shotย ๐๏ธ
Snow falls on the Abajo Mountains in southeastern Utah as seen from near Dove Creek, Colorado. Jonathan P. Thompson photo.
Udall/Overpeck 4-panel Figure Colorado River temperature/precipitation/natural flows with trend. Lake Mead and Lake Powell storage. Updated through Water Year 2025. Note the tiny points on the annual data so that you can flyspeck the individual years. Credit: Brad Udall
The Lower Basin States of Arizona, California, and Nevada today advanced a plan to stabilize the Colorado River through 2028, responding to declining reservoir levels, record low inflows to Lake Powell, and increasing risk of reaching critical elevations at both Lake Powell and Lake Mead.
Earlier in the post-2026 process, the Lower Basin took a significant step by proposing 1.25 million acre-feet in annual reductions, with an additional 250,000 acre-feet from Mexico, totaling approximately 1.5 million acre-feet per year.
This proposal builds on that foundation with an expanded system conservation program across the Lower Basin with an estimated contribution of at least 700,000 acre-feet. In total, the plan identifies up to 3.2 million acre-feet of water savings to the system through 2028.
The proposal is an integrated package addressing Lake Powell releases, Upper Initial Unit operations, Lower Basin reductions, additional conservation, use of Intentionally Created Surplus, and system infrastructure improvements. Lower Basin contributions are contingent on these coordinated operations to ensure system stability as well as appropriate funding.
โWith this proposal, the Lower Basin is putting forth real action to stabilize water supply along the Colorado River. Weโre putting forward additional measurable water contributions for the system. Without that, the system will continue to decline,โ said JB Hamby
โThis proposal is about moving from ideas to implementation,โ said John Entsminger. โIt pairs real measurable water contributions with sensible dry-condition operations at Lake Powell and across the Upper Initial Units. Now is the time for every water user in the Basin to double down on water conservation as we face historically dry hydrology.โ
โThis proposal reflects the creativity and commitment of water users across the Lower Basin who continue to step forward with solutions that support the river,โ said Tom Buschatzke. โWe have shown that collaborative, voluntary efforts and reductions that are certain can produce meaningful water savings.โ
The Lower Basin states recognize the Upper Basinโs call for mediation and are open to that process. However, current conditions require immediate, measurable water reductions from every state. The Lower Basin states stand ready to engage in a meaningful process for long-term solutions while encouraging the Upper Basin to step forward now with verifiable water contributions to help stabilize the system and support a near-term, seven-state bridge.
The Lower Basin states confirmed that the proposal preserves legal accountability under the Colorado River Compact, including Upper Basin delivery obligations, while maintaining a clear path toward a broader agreement among all seven Basin States.
The plan has been advanced to the federal government for consideration as part of the ongoing post-2026 planning process and is intended to provide a near-term bridge through 2028 while long-term operating guidelines are finalized.
Implementation of key elements of the proposal, including expanded system conservation, will require federal partnership. The proposal remains subject to approval by the Arizona Legislature and relevant California and Nevada water agency governing boards.
This story was produced by Circle of Blue, in partnership withย The Water Deskย at the University of Colorado Boulderโs Center for Environmental Journalism.
KEY POINTS
Glen Canyon Dam, completed in 1963, was not designed to be operated at extremely low water levels in Lake Powell.
The decline of Lake Powell is putting hydropower generation and downstream water deliveries at risk.
The Bureau of Reclamation, the federal water manager, is studying options for retrofitting Glen Canyon Dam.
In the span of U.S. history certain years are turning points, milestones in the nationโs story. 1776. 1865. 1929. 1968. Circumstance and consequence conspire to make it so.
For the Colorado River and those who rely on it, 2026 is on the verge of similar prominence. Circumstances in the basin today are that urgent.
Udall/Overpeck 4-panel Figure Colorado River temperature/precipitation/natural flows with trend. Lake Mead and Lake Powell storage. Updated through Water Year 2025. Note the tiny points on the annual data so that you can flyspeck the individual years. Credit: Brad Udall
A slow-developing water supply calamity, decades in the making, has boiled over, like a cold war turning hot. Extreme heat in March โ triple-digit temperatures never witnessed that early in the year โ obliterated a meager snowpack. The basinโs big reservoirs, the supposed buffers against short-term drought, were already uncomfortably low after a quarter-century of declining river flows. They will drop even lower. The amount of water flowing this summer into Lake Powell, the nationโs second-largest reservoir, will be one of the smallest ever measured, barely a trickle.
โThis is unprecedented, but itโs not unpredicted,โ said Eric Balken, executive director of the Glen Canyon Institute. โI like to say that this is the most predicted disaster of all time.โ
Lake Powell is formed by Glen Canyon Dam, a striking 710-ft tall concrete arch braced against ruddy sandstone walls. It plugs the Colorado just after the river enters Arizona. Meant to ensure water deliveries to the lower basin states of Arizona, California, and Nevada, Glen Canyon Dam was finished in 1963 to complement the Colorado Riverโs audacious engineering that distributes water through mountains and uphill to the largest cities in the Southwest and to the regionโs most productive farmland. When full, Lake Powell holds enough water to flood the entire state of Virginia to the depth of one foot.
Climate change and water demand that still exceeds supply have flipped the engineering script. Lake Powell is less than 25 percent full today. Glen Canyon Dam, instead of being a guarantor of water, is now the most significant water chokepoint in the basin. The hard-won asset has become a glaring liability.
The back of Glen Canyon Dam circa 1964, not long after the reservoir had begun filling up. Here the water level is above dead pool, meaning water can be released via the river outlets, but it is below minimum power pool, so water cannot yet enter the penstocks to generate electricity. Bureau of Reclamation photo. Annotations: Jonathan P. Thompson
The reversal of fortune is because of how Glen Canyon Dam was designed. The dam was never meant to be operated at the extremely low water levels that Lake Powell is rapidly approaching. Doing so for extended periods of time could damage the pipes that move water through the dam, according to the Bureau of Reclamation, the federal agency that manages the structure.
Reclamation is now studying its options for retrofitting Glen Canyon Dam to accommodate a lower Lake Powell. It expects to release those findings later this year or in early 2027. As any home remodeler knows, renovating an aging structure is neither quick nor cheap, especially when failure could have disastrous consequences.
In the short term, Reclamation is relying on operational band-aids for Glen Canyon Dam and Lake Powell. With the consent of the seven states in the basin โ Arizona, California, Colorado, Nevada, New Mexico, Utah, and Wyoming โ the agency took unprecedented action this month to prop up the reservoir. Releasing more water from upstream reservoirs and holding back more in Powell will delay Glen Canyonโs infrastructure reckoning. But that day will soon come, and Reclamationโs answer to the damโs engineering problems will have far-reaching implications โ not only for the reliability of the basinโs water supply, but also for its power customers, ecology, and recreation economy.
An Assessment Deferred
Dams are difficult to manage under any circumstance. Management is even more troublesome when operators must balance multiple, conflicting objectives. In Glen Canyonโs case those objectives are water supply, flood control, hydropower generation, and releasing water to protect the ecology downstream in the Grand Canyon โ namely, beach-building and threatened native fish like the humpback chub. This is in addition to ensuring the safe operation of the dam itself.
As of late April 2026, Lake Powell was just 25 percent full and projected to drop to a record low in the next 12 months. Photo ยฉ Brett Walton/Circle of Blue
How to operate Glen Canyon Dam and Hoover Dam, its larger downstream sibling, is what the seven basin states and Reclamation are attempting to figure out right now. The current agreement covers operations through 2026. Reclamation published a draft environmental impact statement, or EIS, in January that would impose severe cuts on water users in the lower basin, particularly Arizona, in part to protect Glen Canyon Damโs fragile infrastructure.
For that reason, water users in the lower basin and elsewhere support an engineering fix for Glen Canyon Dam. Many were incredulous that Reclamation did not include an assessment of dam modifications in its draft environmental analysis.
โThis EIS could have been a great avenue to look at real changes at Glen Canyon Dam that could solve the water delivery problem and some of the ecological problems, too,โ Balken said.
Patrick Dent is the assistant general manager for water policy at the Central Arizona Project (CAP), which delivers Colorado River water to the densely populated center of the state. He said that CAP does not favor any particular fix โ only one that provides dam managers with more flexibility.
โOur primary interest is that they could release water at a lower lake level,โ Dent said.
The Gila River Indian Community, which receives Colorado River water through CAP, told Reclamation that the agency has a duty to safeguard the tribeโs water rights, which are at risk if the dam cannot release enough water. โThe United States must take action to fix Glen Canyon Dam,โ Gov. Stephen Roe Lewis wrote in a March 2026 letter.
The Colorado Water Conservation Board, which represents that stateโs water interests, said it supports a reevaluation of Glen Canyon Dam, but โin a separate actionโ from the EIS.
Becki Bryant, a Reclamation spokesperson, said the agency will release an appraisal study assessing three dam modification alternatives at the end of this year or in early 2027. Any action beyond the study, she said, requires congressional authorization and funding.
Illustration from the report, โAntique Plumbing & Leadership Postponedโ from the Utah Rivers Council, Glen Canyon Institute and the Great Basin Water Network. Courtesy of Utah Rivers Council
โAntiquated Plumbingโ
The tool for managing the damโs multiple objectives, which are a legislative requirement as well as a practical necessity, is the water held in Lake Powell, said David Wegner, a scientist who has worked on Glen Canyon policy for more than four decades. But even water has limits when the engineering is inadequate. โSadly, these dams were not built for multiple objectives,โ Wegner said. And Glen Canyon was certainly not built for extremely low water, he added.
Glen Canyon Dam, completed in 1963, was not designed to be operated at extremely low water levels that Lake Powell is now approaching. Photo ยฉ Brett Walton/Circle of Blue
The problem with Glen Canyon is what a coalition of environmental groups calls the damโs โantiquated plumbing.โ The groups โ Glen Canyon Institute, Great Basin Water Network, and Utah Rivers Council โ published a report in August 2022 that outlined these engineering deficiencies.
Water can exit Glen Canyon in only three ways. One is the spillways, a pressure-release valve for flooding, which are located at elevation 3,648 feet, near the top of the dam. They are irrelevant today. Lake Powell rests 122 feet below them.
The main exit point is through the eight penstocks, the 15-foot diameter tubes that move water through the turbines to generate hydroelectricity. The penstocks are incapacitated when Powell drops below 3,490 feet. (The lake today is 36 feet higher than that level.) If the lake falls below what is known as minimum power pool, hydropower generation also ceases.
If that happens, water must be released through four 8-foot diameter pipes called the river outlet works. Smaller than the penstocks, the river outlet works are located at elevation 3,370. Below that elevation water cannot be released from Powell, a status known ominously as โdead pool.โ (Functionally, the river outlet works may be useless at elevation 3,394, Reclamation says.)
The environmental groups identified two limitations with the river outlet works. One is that they were not designed to be operated full-time. They are a role player, not the star. The other is that their smaller size means less water can pass through them. Thatโs a problem because the upper basin states of Colorado, New Mexico, Utah, and Wyoming are required to send a set amount of water downstream to the lower basin, according to the 1922 Colorado River Compact that divided the river.
The flow restrictions imposed by the river outlet works, if they had to be used full time, means that the upper basin could violate the compact, which could mean water cutbacks imposed by the lower basin.
โItโs just so counterintuitive that the tool that was designed to meet this delivery obligationโ โ the construction of Glen Canyon Dam โ โis now going to be the roadblock that may prevent the delivery obligation from being met,โ said Balken of the Glen Canyon Institute.
The engineering problems are not a new discovery. Wegner, who was with the Bureau of Reclamation at the time as its Grand Canyon environmental studies manager, helped lead a 1987 National Academies report on Glen Canyon. The report recommended that the Interior Department consider the โinstallation and operation of multiple outlet structuresโ at Glen Canyon, which would give dam managers more flexibility with water releases.
Glen Canyon Damโs powerhouse sits at the base of the 710-foot-tall structure. Hydroelectric generation has dropped in tandem with the falling water levels in Lake Powell. Photo ยฉ Brett Walton/Circle of Blue
Glen Canyonโs structural problems were substantiated in 2023, when Reclamation used the river outlet works during an experimental โhigh-flowโ release of water to flush sediment downstream and rebuild eroding Grand Canyon beaches.
The high-volume release caused pitting, or cavitation, within the river outlet works, a risk that was heightened due to the physics of water when Lake Powell is low. Reclamation coated the pipes with epoxy as a temporary fix to prevent more damage, a process that took several months. The agency has since used two small-scale physical models at its Technical Service Center in Denver to test dam operations at low water levels and the effect on infrastructure.
Reclamation acknowledged the limitations of the river outlet works in a technical memopublished in March 2024 by Richard Lafond, director of the agencyโs Technical Service Center. The memoโs conclusions were endorsed by the top decision-makers in Reclamationโs Upper Colorado River Office.
โLong term operation of the river outlet works will result in accelerating regular operation and maintenance tasks,โ LaFond wrote. Reclamation should โnot rely on the river outlet works as the sole means for releasing water from Glen Canyon Dam.โ
Wegner put it in starker terms. If the river outlet works had to be relied upon and the pipes began to erode again, then Reclamation could potentially lose control of water flows.
โPotentially that could fail,โ Wegner said, meaning an inability to control water releases through the dam if the pipes are structurally compromised. โAnd if that fails, now you have a catastrophe on your hand and you have limited options to manage that catastrophe.โ
In other words, there would be no way to release water downstream into the Grand Canyon and into the lower basin.
Neither Quick Nor Easy
What fixes are possible? Reclamation received $2 million from Congress in the fiscal year 2022 budget for an appraisal study.
Reclamation outlined three engineering possibilities in a 2023 presentation, most of which centered on preserving hydropower generation as Lake Powell declines.
One possibility is a new, lower intake that uses the existing power generation turbines. An intake located deeper in the reservoir would allow Glen Canyon to pass water in what is currently dead pool. But it would entail โincreased risk from penetration through the dam.โ
The second would connect new power generation equipment to the river outlet works.
The third option is tunneling through the canyon wall and installing a new underground power station. This would also provide more flexibility for water releases.
Reclamation also included three operational or policy changes for power production, including investing in wind and solar to offset hydropower declines.
Other ideas that seemed kooky and fringe just a few years ago โ draining Lake Powell and filling Lake Mead first; changing the basinโs water accounting system โ are now being discussed throughout the basin with more seriousness and candor.
Beyond that presentation, Reclamation has not said much publicly about dam modification. The agency declined an interview request to discuss Glen Canyon Damโs engineering problems.
Whatever direction Reclamation chooses โ an option outlined above or something new โ the process will not be quick or easy. Any change to Glen Canyon must go through an environmental analysis and public comment period. Congress will have to authorize actions and appropriate the funds. Construction alone will take years.
Wegner, who was the staff director for the House Natural Resources Water and Power Subcommittee from 2008 to 2014, knows the difficulty and sees a lack of leadership. โThereโs nobody in Washington who has been willing to lead the charge trying to get Congress to provide authorized funding to do this sort of work.โ
โReservoir Triageโ
Because Reclamation is not confident it can operate the river outlet works for an extended run, the agency is focused on keeping Powell above elevation 3,500 feet.
Protecting 3,500 feet comes with all sorts of baggage. It preserves hydropower generation, which power customers appreciate. But in effect the redline at that elevation strands some 4.4 million acre-feet in Lake Powell. (Only 3.7 million acre-feet is technically accessible with the current plumbing.) Some have called this elevation a โde factoโ dead pool. Thus, the agitation in the lower basin for a plumbing system within the dam that provides access to this water.
The mineral โbath tub ringโ above Lake Powell shows where its water level has been. Photo ยฉ Brett Walton/Circle of Blue
Balken said that downstream water deliveries, not preserving hydropower, should be Reclamationโs biggest concern.
โWhen these decision makers are talking about Glen Canyon Dam from only a hydropower perspective, I think itโs missing the larger point, which is the dam is about to become the biggest roadblock of water deliveries that the basin has ever seen,โ Balken said.
Flaming Gorge Reservoir, on the Green River, straddles the Wyoming-Utah border south of Rock Springs. The Flaming Gorge dam, on the Utah side, was completed in 1964 and is a critical component of the Colorado River water storage system. The Green River, the chief tributary to the Colorado River, originates in the Wind River Range, flows to Flaming Gorge Reservoir, then connects with the Colorado River in Canyonlands National Park in Utah.
To avoid the infrastructure risks of dropping below 3,500 feet, Reclamation has started to take extraordinary action. The agency has two emergency levers it is pulling. One is to hold more water back in Lake Powell. Reclamation cut water releases to the legal minimum this year, something it has never done. The other is releasing more water from Flaming Gorge, a reservoir upstream that is in better shape.
As Balken describes it, โThis is reservoir triage.โ
These emergency actions have serious side-effects. Upstream, Flaming Gorge is expected to lose 35 feet of elevation by next spring, once the extra water has been released. That will hurt the recreation economy of northeastern Utah and southwestern Wyoming โ fewer boat ramps in the water, less fishing access.
These upstream releases have limited utility, Wegner said. โYou can do that once or twice. But you got to then depend upon Mother Nature refilling those reservoirs upstream.โ
Hoover Dam at low water. Jonathan P. Thompson photo.
Downstream, Lake Mead will drop quickly and it too will approach a level in which hydropower generation at Hoover Dam severely drops. Algal blooms in a warmer, shallower lake could be a problem. โTheyโre going to be robbing Mead to pay Powell,โ Balken said.
Trying Not to Hit Bottom
The idea of dead pool โ when Lake Powell can no longer release water โ was almost inconceivable when the reservoir was designed and filled. The official device for measuring Lake Powellโs elevation ends at the top of the penstocks, at elevation 3,477.5 feet. According to Reclamationโs 2024 technical memo, โThis is an indication that reservoir elevations below minimum power poolโ โ 3,490 feet โ โwere not anticipated.โ
Cavitation at the Glen Canyon Dam, the cause of the emergency in 1983 via Flow Science.
Reclamation finished filling the reservoir in 1980. Three years later, after an intense El Niรฑo winter, the damโs upper limits were tested. Floodwaters in the summer of 1983 nearly broke the dam. Such volumes are almost inconceivable now.
In a typical year, Lake Powell would be rising in late April, flush with the deposits of snowmelt from headwater basins in the Rocky Mountains. Not this year. The snowpack peaked in many basins in late February or early March. What little snow there was has already melted. As of April 28, Lake Powell inflows are projected to be just 16 percent of average. Lake level forecasts from mid-April showed a long downward slope for the next 12 months. Those projections were what triggered the emergency release of water from Flaming Gorge and the reduction in Lake Powell releases.
Scientists have been warning about circumstances like this for years. In a defining period for the basin, all the predictions of water supply shocks in the Colorado River from the past two decades are coming to pass.
โWe should have been prepared for this,โ Balken said.
Map of the Colorado River drainage basin, created using USGS data. By Shannon1 Creative Commons Attribution-Share Alike 4.0
Click the link to read the article on the Tucson.com website (Tony Davis). Here’s an excerpt:
April 26, 2026
It’s time to bring in a mediator to handle the prolonged dispute over managing the Colorado River between the Upper and Lower Colorado River Basin states, representatives of the four Upper Basin states say.
“The proposal for mediation attempts to address the current deadlock between Upper Basin and Lower Basin approaches and begin to deal with the basinโs dire hydrologic conditions.” said the Upper Colorado River Commission, which represents Colorado, New Mexico, Utah and Wyoming.
“The commissioners believe a structured mediation process can support authentic negotiations and collective action to address the Basinโs operational challenges,” the commission said in a news release last week.
The request for a mediator to handle this dispute follows about two years of fruitless negotiations among the various state representatives. There have been several major sources of dispute, but the biggest one has been over how the two basins should split the cuts in river water use that would be needed to bring human demand in line with shrinking supply…The Upper Basin states’ request comes not long before the U.S. Bureau of Reclamation is supposed to announce its plan for managing the river, in the absence of an agreement among the basin states. A new plan is necessary because the river’s current operating guidelines expire Sept. 30…
The request for mediation also comes as the river’s condition continues to deteriorate. Hot, dry weather has held down water flows in the river for most of the year, and there’s a risk that spring-summer runoff into Lake Powell will be the lowest on record since Lake Powell started filling in the 1960s.
Click the link to read the article on the Summit Daily website (Ali Longwell). Here’s an excerpt:
April 20, 2026
With a historic drought hitting the Colorado River basin, the U.S. Bureau of Reclamation is making preparations to slow releases from the riverโs largest reservoir while increasing withdrawals from an Upper Basin reservoir.
โGiven the severity of the risks facing the Colorado River system, it is imperative that we take action quickly to protect a resource that supplies water to 40 million people and supports vital agricultural, hydropower production, tribal, wildlife and recreational uses across the region,โ said Andrea Travnice, the Bureau of Reclamationโs assistant secretary of water and science in a Friday, April 17 news release…
As a result, the Bureau of Reclamation is anticipating that inflow to Lake Powell will be 29% of the historical average, which it reports is one of the lowest on record. If water levels fall below a certain elevation โ below 3,490 feet or roughly 15% of its capacity โ it can impact operations, regional power and water supplies as well as reduce hydroelectric power generation. The Bureau is projecting it could hit this minimum power pool level by August. As ofย April 19, Lake Powell and Lake Mead were 24% and 32% full, respectively.ย
View below Flaming Gorge Dam from the Green River, eastern Utah. Photo credit: USGS
The Colorado River carves through mud left behind from Lake Powell when the reservoir was at full pool, near Hite, Utah in October 2022. (Alexander Heilner/The Water Desk with aerial support from LightHawk)
This yearโs historic winter of low snow might feel novel. But recent years give some insight into just how dry the Westโs most important river system can get. This seasonโs scant snowpack is melting rapidly, and turning up memories of other notably dry years.
Prolonged drought conditions and warming temperatures since 2000 have produced severe single-year droughts in 2002, 2012, 2018 and 2020 in the riverโs headwaters states of Colorado, Wyoming and Utah. As severe drought years continue to put the Southwestโs water infrastructure to the test, communities in the region are grappling with how best to understand and adapt to a changing climate.
2002 stands as the worst drought on record for the Colorado River, measured as the flow into one of its biggest reservoirs, Lake Powell on the Utah-Arizona border. Itโs possible 2026 could break that record. Back then the year acted as a wake-up call to the regionโs water leaders, spurred important policy changes, and reshaped attitudes around conservation.
We asked Colorado River experts Eric Kuhn, Jeff Lukas and Jim Lochhead to share five important takeaways from the 2002 drought, and what to know as we enter the warmer, drier months of 2026.
1. Reservoirs have memory
Reservoirs act as batteries for water availability, charged by inputs such as snowmelt, streams, rivers and precipitation.
โWhat you did two or three years ago can affect your water supply now,โ said Eric Kuhn, former general manager for the Colorado River Water Conservation District. โSo in a good year, if you are conserving, you are actually helping the system out for the next drought.โ
The 2002 drought prompted municipal utilities to rethink their reservoir usage.
โWater managers and agencies have absorbed several lessons from 2002, including holding something back. Theyโre operating the reservoirs a little differently,โ said Jeff Lukas, an independent climate and water researcher who has lived on Coloradoโs Front Range for 40 years.
By conserving reservoir water, municipal utilities can maintain water storage for less abundant water years of the future. But as dry conditions have dogged the entire Colorado River basin for more than a quarter-century, the systemโs buffer is gone.
โThe biggest issue is that Lake Powell and Lake Mead were relatively full in 2002,โ Kuhn said. Now, both Lake Powell and Lake Mead are at critically low levels, and the water scarcity is increasing the likelihood of multi-state litigation.
In 2002, drought was dealt with on a local level; water utilities were not thinking about drought in terms of the entire river system, but instead how to regulate municipal water use. This yearโs dry conditions are pushing the whole region to the brink.
2. Conservation can make a big difference, if it is mandatory
Individual contributions to water conservation, adhering to local outdoor watering restrictions for example, can make a difference. Prompted by the 2002 drought, a 2004 University of Colorado study aimed to measure the effectiveness of water restrictions put in place by water providers on the stateโs populated Front Range.
The study followed municipal water providers Thornton, Aurora, Westminster, Fort Collins, Boulder, Louisville, Lafayette and Denver Water, comparing 2002 usage to average water usage in 2000 and 2001. Researchers determined that water restrictions are most effective when mandatory. Mandatory restrictions in Lafayette reduced water usage by as much as 53%, according to the study.
The same study found that under mandatory restrictions, savings of expected water use per capita was as successful as 56%, while voluntary restrictions only measured up to 12%.
Outdoor watering represents a big slice of a cityโs water budget, and 2002 showed utilities that in times of crisis people can rein in their use.
โEveryone should realize that they can make a small contribution to the solution,โ Kuhn said. โEven though their individual contribution might be miniscule, when you add up all their neighbors and other people, itโs not miniscule. Itโs very, very big.โ
Watering a lawn once or twice a week, and not during peak hours, is a practical way to conserve water while keeping grass alive.
3. This is not a one-off year
Itโs easy to shrug off a dry year and hope for wet weatherโs return. But the long-term trends are concerning.
โThis is really the 26th year of extreme drought,โ said former Denver Water CEO Jim Lochhead. On a larger scale, the seven Colorado River basin statesโArizona, California, Colorado, Nevada, New Mexico, Utah and Wyomingโhave been preparing for worsening drought conditions since the shock of 2002. But river policy hasnโt kept pace with the aridification, leaving the regionโs largest reservoirs at near record lows.
The Colorado River flows through canyons in northern Arizona in October 2020. (Ross Rice/The Water Desk & LightHawk)
โThis has been a slow moving train that I think the states have known was coming, and they have frankly failed to do anything about it,โ said Lochhead, who also represented the state of Colorado amid interstate Colorado River negotiations in the 1990s and early 2000s.
The Colorado Climate Center anticipates droughts to increase in severity and frequency, a trend that is only expected to continue in Colorado and across the Southwest as warming temperatures upend the water cycle.
โWe should be managing and thinking about water, using water, as though it were always a drought,โ Lukas said.
4. Communities have more practice dealing with drought, but still struggle
Drought conditions in 2002 led some municipal water utilities to organize and create incentives for conservation, and transformed the urban landscape, swapping grass for more drought-tolerant plants. Those water restrictions allowed municipal water providers to curb water demand while steadily growing in size. However, there is still room for improvement in disproportionately affected communities.
According to Lochhead, urban areas need to prioritize heat reduction in neighborhoods that have fewer trees in order to lessen the impacts of drought and warming temperatures. Using scarce water supplies to encourage tree-planting and increase shade should remain a priority.
โI think we need to work with those communities to enhance some landscaping,โ Lochhead said. โWhether itโs the homeless population, whether itโs just kids that are out, whatever it may be, those areas are where theyโre pretty hard hit by heat.โ
Farmers and ranchers are used to riding the highs and lows of western weather. But extremely dry years like 2002, and now 2026, can push their operations to the limits.
โThis is going to be a really tough year,โ Lukas said. โYouโre going to have a lot of people selling off their herds and taking insurance out because of low crop yields.โ
The majority of Coloradoโs annual water supply is used for irrigation, so any proposed restrictions can be costly for the agricultural community. โThere are going to be a lot of farms and ranches that just canโt operate because they donโt have any water,โ Lochhead said. โThere are going to be some significant economic consequences.โ
5. Stay aware, even if things seem bleak
For Lukas, this year and its predecessors test our expectations about what nature can provide.
Even in periods of prolonged drought, there are wet years. โJudging from history, that tends to put everyone back on their heels, a little complacent,โ Lukas said, but maintaining water storage relies on year-to-year vigilance, not complacency.
Another primary concern during drought years is wildfire. With less moisture in the soil, dry vegetation acts as fuel for wildfire, which becomes harder to contain under hot and dry conditions.
โI worry a lot less about municipal water supply than I do about wildfire,โ Lukas said. Many of Coloradoโs notably dry years have also recorded severe and destructive wildfires.
It comes at no surprise that worsening drought falls in line with worsening wildfires. โClimate change is delivered to people through changes in the hydrologic cycle,โ Kuhn said, so being aware of water usage now is just as, if not more important as it was in 2002.
This story was produced and distributed by The Water Desk at the University of Colorado Boulderโs Center for Environmental Journalism.
The federal government ordered Flaming Gorge water released and cuts to Lake Powell releases, to prevent collapse.
Last week, the federal government ordered emergency measures to prevent water levels at Lake Powell from falling so low that Glen Canyon Dam, which created the reservoir, could no longer generate power or deliver water downstream. Without this intervention, models showed that the reservoir could drop below safe operating levels in August, meaning that the river would not have a reliable way to flow past the dam. This would threaten water and power supplies for millions of people across the Southwest, as well as the flow of water through the Grand Canyon.
Westwide SNOTEL basin-filled map April 24, 2026.
Across the Colorado River Basin, an extremely low snowpack combined with a record-shattering March heat wave, have left water managers with few other options. The regionโs reservoirs were already depleted from years of relying on wet winters to balance the growing demand with the ongoing drought.
Flaming Gorge Reservoir, on the Green River, straddles the Wyoming-Utah border south of Rock Springs. The Flaming Gorge dam, on the Utah side, was completed in 1964 and is a critical component of the Colorado River water storage system. The Green River, the chief tributary to the Colorado River, originates in the Wind River Range, flows to Flaming Gorge Reservoir, then connects with the Colorado River in Canyonlands National Park in Utah.
โThis is a short-term solution,โ said Jenny Dumas, water attorney for the Jicarilla Apache Nation, which sits near the border of Colorado and New Mexico. โItโs going to take time to recover these reservoirs before we can do this again. So while we can exhaust our reserves to avoid system collapse this year, it means reserves wonโt be there next year.โ
This is not the first time water managers have turned to Flaming Gorge to stabilize the larger river system. In 2022, the federal government ordered the reservoir to release 550,000 acre-feet to stabilize the downstream river system, which disrupted recreation and rattled upstream communities. This time, Reclamation has authorized releases of up to 1 million acre-feet. Over the next year, a third of the reservoirโs storage is expected to be gradually released. By September, water levels are projected to drop about 12 feet.
Flaming Gorge Reservoir stores water from the Green River in Wyoming, and is shared by Wyoming and Utah. Ted Wood/The Water Desk
โThis is an unprecedented release volume โ more than double the last time,โ said Amy Haas, executive director of the Colorado River Authority of Utah, who briefed communities bracing for the releases at Flaming Gorge Reservoir. โWe really just donโt know the actual impacts of these releases to surrounding communities, and our water users are struggling. My goodness, we are on target to become one of the worst water years on record. The forecasts are stunning to all of us.
The amount of water projected to flow into the river from snowmelt is rapidly declining. Over the first two weeks of April, forecasts for Lake Powell fell by 500,000 acre-feet. The spring forecast is shifting so quickly, some experts believe the releases from Flaming Gorge may need to increase.
โI think itโs a target, and theyโre going to have to revise it,โ said veteran water manager and researcher Eric Kuhn, who co-authored a paper last September predicting this kind of shortage and calling for action. โItโs many river miles from Flaming Gorge to Lake Powell. What are the transit losses?โ
โAlso, when March looked like June, what are June and July going to look like?โ he added. โI could easily see that 1 million becomes 1.5 million acre-feet by March of 2027.โ
Kuhn sees the emergency actions as a sign of broader failure to address the underlying issues that led to the current situation. โThe Department of Interior no longer acknowledges that the fundamental problem is climate change. Weโre dealing with the symptoms of the disease. Weโre not dealing with the underlying problem,โ he said. โThe law of the river was written for a river that no longer exists from a hydrologic standpoint.โ
In a meeting Tuesday, Upper Basin state commissioners acknowledged the need for emergency action but warned that this was not a long-term solution.
โI want to make darn sure people understand โฆ the incredibly difficult, heartbreaking decisions that are having to be made with the lives of generations of cattle production, and farming communities in the Upper Basin states,โ particularly in Utah, said Gene Shawcroft, Utahโs Colorado River commissioner.
Wyoming Commissioner Brandon Gebhardt reported that 13,000 acres of agricultural land in the South Piney drainage on the eastern slopes of the Wyoming Range had been cut off from water, adding that even some of the stateโs oldest and most senior water rights โ some dating to 1898 โ will likely be impacted.
โWe expect three of the five Flaming Gorge boat ramps in Wyoming will be rendered unusable, and low reservoir levels will have long-lasting negative impacts on reservoir fisheries,โ said Gebhardt. โWe recognize what we are approving today will have significant negative impacts on our water resources, local economies and recreation.โ
Map of the San Juan River, a tributary of the Colorado River, in Arizona, Colorado, New Mexico and Utah, USA. Made using USGS National Map data. By Shannon1 – Own work, CC BY-SA 4.0, https://commons.wikimedia.org/w/index.php?curid=47456307
Shortage is affecting more than agriculture and recreation. The Ute Mountain Ute Tribe, for example, reported its sacred springs going dry, affecting ceremonies, and the tribal farm will have to operate with just 14% of its normal water supply. Meanwhile, the Jicarilla Apache Nation said it received just 25% to 35% of its contracted water allocation, leaving tribal leaders uncertain about whether they can divert enough water from the Navajo River to meet the communityโs domestic needs.
With no sign of long-term agreement on how to manage the river past September, legal tensions among the basin states remain high.
Arizonaโs Department of Water Resources released a statement agreeing with plans to order upstream releases to stabilize Lake Powell but also warning that the revised downstream releases were โsubstantially less than required under the 1922 Colorado River Compact,โ referencing the foundational legal document dividing the river. โFailure to comply,โ the release stated, โis itself a serious development that Arizona will assess and respond to accordingly.โ
Upper Basin state commissioners plan to hold a special meeting to revisit the issue and vote on whether to continue emergency actions past August after assessing water levels and determining whether or not the releases are working.
Regardless of the possible legal battles, the reduced water in the river, infrastructure limits and political gridlock have left basin communities feeling uncertain about their future water security. After the planned releases from Flaming Gorge, if next winter brings another dry year, it is unlikely that upstream reservoirs will have enough water to stabilize Lake Powell.
The basin needs more than emergency actions, Dumas said. โWe really want to emphasize the need for serious and permanent changes in how we use and manage the river to adjust to current and future hydrology.โ
This story was produced by High Country News, in partnership with The Water Deskat the University of Colorado Boulderโs Center for Environmental Journalism.
Illustration from the report, โAntique Plumbing & Leadership Postponedโ from the Utah Rivers Council, Glen Canyon Institute and the Great Basin Water Network. Courtesy of Utah Rivers Council
Click the link to read the article on the Aspen Public Radio website (Caroline Llanes). Here’s an excerpt:
April 21, 2026
The agencyย announcedย on April 17 that it would release between 600-thousand and one million acre feet of water from Flaming Gorge Reservoir on the Wyoming-Utah state line over the course of the next year. In addition, Reclamation will reduce the amount of water it sends from Lake Powell through Glen Canyon Dam, decreasing flows downstream through the Grand Canyon and into Lake Mead. Through September 2026, the agency will reduce its annual release volume from about 7.5 million acre feet of water to just 6 million acre feet.
Westwide SNOTEL basin-filled map April 23, 2026.
The drought contingency actions come in response to a water year that has been incredibly dire for the Western United States and the Colorado River Basin. Snowpack has been at record lows for much of the winter, which is bad news for a region that relies on snowmelt for much of its water use. The forecast for runoff into Lake Powell from the entire Upper Basin is forecast to be just 23% of normal. The agency estimates that these combined actions will boost Lake Powellโs elevation by 54 feet over the course of the year, bringing it to 3,500 feet in April 2027.ย Currently, Lake Powellโs elevation is about 3,528 feet. 3,490 feet is the elevation at which hydropower can no longer be produced at Glen Canyon Dam. Any lower, and water will not be able to enter the hydroelectric turbines. Instead, the water has to go through whatโs called โriver outlet works,โ which are tunnels that bypass the turbines to get the water downstream to the Colorado River.
The back of Glen Canyon Dam circa 1964, not long after the reservoir had begun filling up. Here the water level is above dead pool, meaning water can be released via the river outlets, but it is below minimum power pool, so water cannot yet enter the penstocks to generate electricity. Bureau of Reclamation photo. Annotations: Jonathan P. Thompson
Seth Arens, a hydrologist at the Western Water Assessment, said Glen Canyon Dam was not designed to have the river outlet works as the primary way to get water out of the reservoir.
โWhen the Bureau of Reclamation has used those river outlet tubes, most of the times they’ve used them, there’ve been some damage to those tubes,โ he said. โThey’ve had to repair damages after relatively short uses, you know, a scale of weeks dumping water out of those.โ
Environmental attorney Chris Winter said itโs clear Reclamation has to take emergency actions to protect its own infrastructure. But, he said the plan leaves a lot of uncertainty and unanswered questions.
โWe’re not going to be able to release a whole bunch of water from Flaming Gorge Reservoir (next year) because that water will have been released this year, and it’s not going to refill if we get another dry year,โ he said. โReleases of water from Upper Basin storage units, thatโs like a one-time thing, unless we happen to get some wet years in the future.โ
View below Flaming Gorge Dam from the Green River, eastern Utah. Photo credit: USGS
Flaming Gorge isย currentlyย about 82% full. Reclamation estimates that its plan will bring the reservoir down to about 59% of its full capacity over the next year. Other Upper Basin reservoirs are not part of the plan at the moment, due to poor forecasted inflows and low water levels. Blue Mesa Reservoir in Western Colorado is currently 47% full and Navajo Lake on the Colorado-New Mexico state line is 63% full. Winter said reducing flows out of Glen Canyon Dam could also lead to legal issues. The Upper Basin states of Colorado, Utah, Wyoming, and New Mexico have not reached a deal with the Lower Basin states of Arizona, California, and Nevada on how to allocate waterโand take cuts to usage in the midst of a changing climateโover the next 20 years. On top of that, reducing flows this year would mark a fulcrum point: the first year that the amount of water at Lees Ferry, just below Glen Canyon Dam, falls below the averages set by the Colorado River Compact of 1922.
Click the link to read the article on the KJZZ website (Alex Hager). Here’s an excerpt:
April 21, 2026
The nationโs second-largest reservoir will get a boost to keep water levels from dropping too low, but the fix wonโt last long…The Bureau of Reclamation will take water from Flaming Gorge Reservoir in Utah and Wyoming and send it downstream to Lake Powell. The agency, which manages major dams and reservoirs across the Western U.S., will also ratchet back the amount of water released from Lake Powell. The efforts are mainly focused at keeping Glen Canyon Dam running smoothly. If water levels drop much further, Lake Powellโs surface will fall below the intakes that pull water into hydropower generators within the dam…Water levels had been forecast to drop below the hydropower intakes level as soon as this summer…
Illustration from the report, โAntique Plumbing & Leadership Postponedโ from the Utah Rivers Council, Glen Canyon Institute and the Great Basin Water Network. Courtesy of Utah Rivers Council
Reclamationโs plan will likely stave off catastrophe at Glen Canyon Dam, but it will do little to solve the problem that imperiled it in the first place. Climate change has left the river with less supply, and humans have not been able to adequately rein in demand.
โThis action that’s being taken is a band-aid solution for a gaping wound,โ said Eric Balken, executive director of the nonprofit Glen Canyon Institute. โIt’s a short-term measure that does not get at the root of the problem, which is over consumption of water.โ
The Grand Canyon survey party at Lees Ferry. Left to right: Leigh Lint, boatman; H.E. Blake, boatman; Frank Word, cook; C.H. Birdseye, expedition leader; R.C. Moore, geologist; R.W. Burchard, topographer; E.C. LaRue, hydraulic engineer; Lewis Freeman, boatman, and Emery Kolb, head boatman. Boatman Leigh Lint, “a beefy athlete who could tear the rowlocks off a boat…absolutely fearless,” later went to college and became an engineer for the USGS. The Grand Canyon survey party at Lees Ferry in 1923. (Public domain.)
Itโs been a record dry winter across the West โ and itโs making an already bad situation on the Colorado River even worse. If water levels get any lower, Lake Powell and the dam that holds it back could be in dire straits. So now, the federal government is stepping in to prop up water levels. But, as KJZZโs Alex Hager reports, it could be a Band-Aid solution to a much bigger problem. Hager joined The Show to explain.
LAUREN GILGER: Good to have you. So, whatโs the situation on Lake Powell right now after this really dry winter? Kind of a worst-case scenario almost.
ALEX HAGER:ย Well, right now water levels there are forecast to drop to dangerously low levels as soon as this summer. And when I say dangerous, that means we would start to see some of the infrastructure in Glen Canyon Dam, which is up in Page, Arizona, start to fail. So water levels are on track right now to drop below the intakes for the hydropower turbines that sit inside the dam. That means it would become difficult or impossible to spin them and make electricity for 5 million people across seven states. If water drops a little bit further than that, it might not be able to pass through the dam at all. We are already looking at โ you know, if it falls below that hydropower intake, it could only travel through this little-used set of backup pipes. We donโt know that it could carry enough water through. You start to have all of these problems. So we are seeing some actions to prevent that from happening now.
LAUREN GILGER: OK. So tell us about those actions. This is the federal government sort of taking control of at least this aspect of it. What are they going to do?
ALEX HAGER:ย Thatโs right. The federal government is stepping in. It is kicking into action something of an emergency backup plan. Itโs been done before, but it is definitely a backup plan. And theyโre going to shuffle some water around. There is another big reservoir up in Utah and Wyoming called Flaming Gorge, and theyโre going to release extra water from Flaming Gorge, send it down the Colorado River to help fill up Lake Powell. At the same time, theyโre going to start tightening the tap on Lake Powell, meaning that less water comes out of it. That water will โ less of it will flow into the Grand Canyon downstream to Lake Mead and downstream to us.
Map of the Colorado River drainage basin, created using USGS data. By Shannon1 Creative Commons Attribution-Share Alike 4.0
The back of Glen Canyon Dam circa 1964, not long after the reservoir had begun filling up. Here the water level is above dead pool, meaning water can be released via the river outlets, but it is below minimum power pool, so water cannot yet enter the penstocks to generate electricity. Bureau of Reclamation photo. Annotations: Jonathan P. Thompson
A bad year in the Colorado River Basin โ barring a truly miraculous spring, probably the worst in recorded history. It is bad enough so the Bureau may have to stop creating power from the Glen Canyon powerplant by this coming fall. At that point, the only way to get water downriver from Glen Canyon Dam will be dribbling it through four outlet tubes that the Bureau is now wishing it had built differently (better) 65 years ago. And praying for enough precip to push the level back above the danger point for the turbines.
Meanwhile the negotiations between the seven basin states about the future distribution of the water remained at an impasse. One might think that a really bad year might generate some new thinking, but the two Basins are still debating Compact numbers like 7.5 million acre-feet for the Lower Basin with a river that might produce less than 5 maf this year, and maybe not much more than that more frequently in the future.
It should be obvious by now that any further negotiation between the states needs to have an independent facilitator guiding the discussion, pushing both factions to disassemble their own non-negotiables. A hard-ass facilitator speaking on behalf of river reality. [ed. emphasis mine]
It seems likely that we will go into the 2027 water year this fall with some new โinterim planโ for operating the river system for the water year that begins in October โ probably some mix-and-match from the Bureauโs five alternatives proposed last year and โEISedโ while the seven states fiddled. The real purpose of the new interim plan will be to keep the infrastructure of the river system viable โ dancing with the dead pool. This will probably impose serious delivery shortages on those below the Powell and Mead Reservoirs (meaning the Lower Basin), and also drop the Upper Basinโs rolling 10-year total closer to the 75 million acre-feet (maf) that will cause the โcompact callโ threat to rear its ugly head.
Year-to-year might be the most honest approach now, anyway, getting a habit of feeling our way forward carefully, with our eyes wide open โ woke, one might say. The managerial โneed for certaintyโ in projections may not be part of the future weโve imposed on ourselves.
But thatโs a good place to let the present sit and settle, and go back to the unfolding saga of the โEra of Conquestโ in this update of Fred Dellenbaughโs Romance of the Colorado River. You may remember that in the last post here, I related that the Bureau of Reclamation, feeling much loved for the Boulder Canyon Project that watered, fed and powered a massive regional development in Southern California, came out of World War II ready to do the same for the Compactโs Upper Basin, in response to a mandate in the Boulder Canyon Project Act that a plan be developed for the development of the rest of the river.
There was, however, already quite a lot of development going on in the Upper Basin โ at least in the state of Colorado, beginning in the 1930s, simultaneous with the Boulder Canyon Project.
Udall/Overpeck 4-panel Figure Colorado River temperature/precipitation/natural flows with trend. Lake Mead and Lake Powell storage. Updated through Water Year 2025. Note the tiny points on the annual data so that you can flyspeck the individual years. Credit: Brad Udall
To establish context โ the whole Colorado River Basin was experiencing its first serious modern-times drought, even as the Great Depression was settling over the whole nation. After the โpluvialโ of water abundance in the first three decades of the 20th century, which convinced the water mavens that the river would deliver a dependable-enough flow of nearly 18 maf, the basin experienced its first 5 maf flow in 1933; by the end of the 1930s, there was reason to doubt that the river would ever again average 18 maf.
But Colorado had a special problem to resolve about Colorado River water distribution: the transdivide situation. I will not bore you again with my opinion of the imperial arrogance in randomly laying down straight line state boundaries in a region of great geographic and geological diversity. But what this created in the irrelevant rectangle called Colorado was like a blanket laid over a fence โ the fence being the Continental Divide. West of the Divide, precipitation that fell (mostly snow in the winter) all ran off toward the Pacific Ocean in the Colorado River tributaries. East of the Divide, it all ran off toward the Atlantic in the Platte, Arkansas and Rio Grande Rivers. Because the weather mostly rode in on the prevailing westerlies, considerably more precipitation fell on the West Slope than fell on the East Slope. But the vagaries of cultural and economic development put most of the population and economic growth on the East Slope โ โ80 percent-20 percentโ is the rough ratio frequently used to describe the imbalance between water and population in the blanket dropped over the fence.
The distribution of water on both sides of the โblanketโ was governed by the appropriation doctrine as stated in the Colorado Constitution: all the water in the state belongs to the people of the state, subject to appropriation for individual use, and the right to divert โshall never be deniedโ โ with seniority among users determining the right to use the water in times of shortage. And by the turn of the century, challenges in water court had established the right to divert water from one basin to another.
As the drought of the 1930s settled in, farmers on the East Slope began to experience serious pressures on the water supply. And consistent with the optimism and technological advances of the early 20th century, this was not regarded as a fact of life to be acknowledged and adapted to, but as a problem to be addressed โ in this situation, by moving water from the West Slope. A major task โ but Franklin Rooseveltโs โNew Dealโ efforts to alleviate the Great Depression offered the possibility of some help, through new agencies like the Reconstruction Finance Corporation and the Public Works Administration.
So when the Colorado General Assembly gathered early in 1933, two water project bills were in the hopper: one to divert an unspecified quantity from the Upper Colorado River in the Grand Lake area to the South Platte River basin, and one to divert an unspecified quantity from the Gunnison River to the Arkansas River basin.
Inhabitants of the West Slope, however, knew nothing about this until they read about it in the newspapers. And they were even more surprised that summer when construction actually began on two transdivide projects: the Denver Water Board began constructing a system of small canals high in the Fraser River headwaters (Upper Colorado tributary) to bring water to the Moffat railroad tunnel pilot bore, which the Water Board had leased from the railroad โ an unused but already dug โpipeโ to the northern Denver area. And the sugar-beet industry led by Great Western Sugar was doing the same collection system in the headwaters of the Roaring Fork River above Aspen for diversion into a small tunnel to the Arkansas River basin. Both of those enterprises were self-funded.
All of this precipitated a regional West Slope meeting in Grand Junction of โwater peopleโ โ county commissioners and attorneys who were also all ranchers or farmers โ at which a โWestern Colorado Protective Associationโ (WCPA) was formed, and a letter was drafted to the state engineer expressing concern that the proposed and in-process projects threatened the future development of the West Slope, and requesting inclusion in all future discussion of them.
The situation as the West Slope people saw it was not a โwater grab.โ The leadership in the WCPA knew that the East Slope irrigators and city-builders were exercising a constitutional right in appropriating โthe peopleโs waterโ on the West Slope. They also knew that most of the Colorado River water left the stateโs West Slope in an unmanageable snowmelt flood anyway, and it might as well go through a tunnel to the Front Range as through Grand Junction and on to โ well, soon, on to enviable storage behind the great dam being built far downstream rather than its historical destiny of flowing on into the salty sea unused.
Storage! That was the key to the West Slopeโs chief water problem, which was water available throughout the growing season for finishing as well as starting crops. West Slope engineers had been drafting up a number of reservoir-and-irrigation projects to present to the Bureau of Reclamation, but dams are expensive, and all of the proposed reservoirs served mountain-valley populations too small to pass the Bureauโs cost-benefit analyses.
So the concept of โcompensatory storageโ for water lost through transdivide diversions became the WCPAโs central focus. And despite their small population, the WCPA had two good cards to play. One was the fact that New Deal federal funding distributed to the states had to be for projects approved by the entire state; the transdivide diversions that needed federal assistance needed for the basin of origin to be as happy as the basin of destination.
A image shows a guest column by Rep. Edward Taylor that appeared from the Steamboat Pilot in 1921. Graphic credit: Northern Water
The other card was a congressional representative, Edward Taylor, whom they had returned to Congress for 12 terms by 1933, and who had over that quarter-century ascended to chairmanship of the subcommittee that controlled the Interior Department budget in the powerful House Appropriation Committee. Congressman Taylor launched the WCPAโs โdefensive offensiveโ by saying that any project seeking federal assistance for a transdivide diversion would have to provide, as part of their project, an acre-foot of compensatory storage for the West Slope for every acre-foot to be diverted.
That was a large and very expensive demand. Taylor exempted Denver and its Moffat project from the mandate โ because, he said, we all want to see โour capital cityโ grow unrestricted. More likely, he knew that Denver could fund its own project and would at best just ignore him; he was not their congressman, and the Denver Water Board at that point was coming under the domination by their attorney, Glenn Saunders, a city-builder who envisioned a water supply for a โthousand-year city,โ most of which he thought would have to come from the West Slope. He just wanted the hicks to stay out of his way. (Not an exaggeration at all.)
Taylor could, however, impose his acre-foot-for-every-acre-foot demand on those seeking federal Public Works Administration funds or Bureau of Reclamation assistance. And that set up what is really an interesting story of people working out difficult problems theyโve imposed on themselves in draping a blanket over a fence and calling it a state, then adopting a wide-open appropriations doctrine for the distribution of a limited resource statewide. Itโs a story with many moving parts that we donโt really have time for here in depth; I will note, however, that the whole story is told in myย Water Wranglersย book, the story of the development of Coloradoโs share of the Colorado River. (Out of print, but copies supposedly in all Colorado libraries.)
The principal players in the story were the Western Colorado Protective Association (WCPA), led by Frank Delaney, a lawyer-rancher, and D.W. Aupperle, a Grand Junction lawyer and fruit grower; the South Platte Water Users Association (SPWUA), led by Charles Hansen, a newspaper editor in farm country and a couple lawyer-farmers; and of course the Bureau which wanted to do a big transdivide diversion to the South Platte River. And what turned out to be the โwild card,โ Congressman Taylor.
A seemingly endless series of meetings began between the WCPA and the SPWUA with the Bureau in attendance. There was fundamental agreement that, first, the East Slope had legal right to appropriate West Slope water, and second, that the East Slope owed the West Slope some compensation for diverting part of the West Slopeโs base for future development. The challenge was arriving at the amount of compensation. The SPWUA wanted to divert more than 300,000 acre-feet from the Colorado River, for what became the Colorado-Big Thompson Project, but they did not see how (even if they could get some New Deal PWA financing) they could afford to also create that much West Slope storage. But the WCPA felt bound to support their congressman โ without whom they really had no card to keep them in the game. Frustration and ire grew on both sides โ compounded by having to travel back and forth either on the slow trains or drive on roads that were really โcountryโ (a major West Slope chronic complaint).
Finally, in the spring of 1936, Frank Delaney of the WCPA suggested a compromise. If the Bureau and SPWUA wanted to rush into construction, it would have to be Taylorโs acre-foot-for-an-acre-foot mandate. But if they could delay their project until the Bureau did a thorough study of what the loss of 300,000 af of free-flowing water (most of it annually leaving the state unused anyway) would be to the West Slope, and how much storage would actually compensate the West Slope users for that loss of spring runoff, the West Slope would accept that number (and work on getting Cong. Taylor to accept it).
The โDelaney Resolutionโ broke the stalemate. The Bureau men spent months poring over existing rights and land maps (long before computers and spreadsheets), and came up with a need for 152,000 acre-feet of compensatory storage: 52,000 af to make sure that the Shoshone power plant water right above Glenwood Springs could be met year round (which would also ensure enough late season water for the Grand Valley farms and orchards), and 100,000 af for future irrigation and domestic water development.
That cut Taylorโs demand in two โ and the Bureau planned to add a powerplant to the dam that would significantly reduce what the SPWUA would have to pay back. During this period, Taylor โ an old man โ was actually too sick to participate, and the Delaney Resolution was adopted for the Colorado-Big Thompson Project. (Taylor would die in office in 1941 โ still believing that an acre-foot-for-every-acre-foot was what should be adhered to.)
Graphic credit: RogerWendell.com
The compromise process was codified as โSenate Document 80,โ part of the Colorado-Big Thompson Project Act passed in 1937. Senate Doc. 80 became part of all subsequent transdivide project planning โ except where Denver was concerned; it wasnโt until the veto of Denver Waterโs Two Forks Project half a century later that Denver Water finally conceded to take West Slope needs into account in its transdivide projects.
That process of working through a significant challenge to mutual benefit stands, in at least my mind, as one of the highlights of the Era of Conquest in the Colorado River region โ a period not without occasional efforts measuring up to the often naive but high-minded vision driving the developersโ โromancing of the riverโ โ to bring deserts into bloom, to reshape unfriendly environments to accommodate individuals and their families willing to work at it. It is too easy to condemn that from this side where we reap the harvest of all the mistakes involved that they didnโt know about until they had made them.
Next post, weโll look at what happened to that carefully forged intrastate resolution when serious Colorado River planning came to the Compactโs Upper Basin. Meanwhile โ pray for monsoons, or just a good rainy spell.
Colorado transmountain diversions via the University of Colorado
Difficult decisions for the Colorado River are starting to be made.
In what will be a defining year for the struggling watershed, the federal agency that manages the basinโs dams took unprecedented actions on Friday to store more water in Lake Powell in order to preserve hydropower generation and protect water-delivery infrastructure at Glen Canyon Dam that the agency says is at risk of damage due to low reservoir levels.
The April 17 announcement from the Bureau of Reclamation will also set in motion events that could result in first-ever lawsuits from Arizona, California, or Nevada against their upstream neighbors over water supply from the shrinking Colorado River.
The Central Arizona Project, which delivers Colorado River water to Phoenix and Tucson, called Reclamationโs actions โa band-aidโ and urged the agency to release even more water from upstream reservoirs into Powell. CAP, because it has lowest water-rights priority in the lower basin, is the most vulnerable to proposed water cuts that would attempt to align water supply with demand.
โThere is no time to delay,โ Patrick Dent, CAPโs assistant general manager for water policy, told Circle of Blue two days before the announcement.
The Bureau of Reclamation will make two moves to support Lake Powell, the huge reservoir formed by Glen Canyon Dam that is less than 25 percent full and shrinking.
Utah, Colorado, Wyoming and New Mexico are asking the federal government to pause some releases from Flaming Gorge Reservoir, which straddles the border between Wyoming and Utah. The reservoir, pictured here in 2021, is the third-largest in the Colorado River system.
Reclamationโs first move is to release more water from Flaming Gorge, an upstream reservoir that is 82 percent full. With the consent of the four upper basin states, between 660,000 acre-feet and 1 million acre-feet will flow from Flaming Gorge into Powell over the next 12 months.
Reclamation previously used upstream reservoirs to prop up Powell in 2022-23, when some 463,000 acre-feet were released. These extra releases are supposed to be recovered if water supply conditions turn favorable. If more dry years are ahead, then the upstream releases will have been a one-shot intervention.
The agencyโs second move is to hold back more water in Powell. Using authority granted in a 2024 decision, the agency will cut Powellโs water releases from 7.48 million acre-feet to 6 million acre-feet. This is the first time that Reclamation has invoked its Section 6(E) authority.
Water supply conditions in the basin worsened each month this year as hot, dry weather drained a meager snowpack that is on a downward trend due to manmade climate change. A heat wave in late March was the most extreme on record in the Southwest for that time of year. Inflows into Lake Powell this year are projected to be the lowest ever measured, breaking a record set in 2002.
The water elevation at Powell currently sits at 3,526 feet. Reclamation has stated that it will do what it can to prevent the reservoir from dropping below 3,500 feet. Hydropower generation stops at 3,490 feet. Without Reclamationโs announced interventions, that level is expected to be breached by August.
With the two interventions, Powell is projected, with average weather conditions, to remain above 3,500 feet by April 2027, but just barely. If the next 12 months continue to be hot and dry, more emergency actions might be necessary.
The back of Glen Canyon Dam circa 1964, not long after the reservoir had begun filling up. Here the water level is above dead pool, meaning water can be released via the river outlets, but it is below minimum power pool, so water cannot yet enter the penstocks to generate electricity. Bureau of Reclamation photo. Annotations: Jonathan P. Thompson
If Powell were to drop below 3,490 feet, water would have to be released through a smaller set of pipes called the river outlet works. Reclamation has said that using these pipes for extended periods of time is untested and risks damaging them.
Reducing outflows from Powell will have two effects. One is that Lake Mead, located downstream, will shrink more quickly, as will its hydropower output. Boating access will be more difficult.
The other consequence is the specter of litigation. The 1922 Colorado River Compact requires the four upper basin states โ Colorado, New Mexico, Utah, and Wyoming โ to deliver 75 million acre-feet over 10 years. Add in the upper basinโs share of the water required for Mexico and the figure rises to roughly 82.5 million.
Cutting Powell outflows this year to 6 million acre-feet will likely push the 10-year total below the required threshold.
Reclamation is not focusing on the legal implications, says James Eklund, a partner at Taft Law.
โReclamation is essentially telling the basin states, โWe are going to protect our billions of dollarsโ worth of infrastructure, including Glen Canyon Dam, and if you believe that violates your compact entitlement, you know where the courthouse isโ,โ Eklund, a former Colorado River commissioner for Colorado, wrote to Circle of Blue.
States in both upper and lower basins have already set aside money for potential litigation or are considering it.
Still, a legal right does not necessarily mean the water is available, Eklund cautions. โNo court can conjure acre-feet that arenโt in the reservoir.โ
Udall/Overpeck 4-panel Figure Colorado River temperature/precipitation/natural flows with trend. Lake Mead and Lake Powell storage. Updated through Water Year 2025. Note the tiny points on the annual data so that you can flyspeck the individual years. Credit: Brad Udall
Click the link to read the article on The Denver Post website (Elise Schmelzer). Here’s an excerpt:
April 19. 2026
The multitude of water managers tasked with overseeingย the drying Colorado River systemstand at a dire crossroads. As a years long stalemate in negotiations persists between the seven states that share the river, itโs become increasingly likely that the federal government will impose its own long-term plan, choosing from a range of proposals officials have outlined in recent months. But experts and water managers across the 250,000-square-mile Colorado River basin are raising the alarm about the five plans, questioning if any of them hold up under the new climate reality. They say the federal plans wonโt keep the system from crashing in critically dry years โ which are becoming more frequent โ and could wreak chaos on the pivotal lifeline for 40 million people in the American Southwest.
โIn every one of those alternatives, under what they call critically dry hydrology, the system is failing,โ said Andy Mueller, the general manager of the Colorado River District, a taxpayer-funded agency based in Glenwood Springs that works to protect Western Slope water. โAnd critically dry hydrology is what we have continued to see consistently in the basin in the last 25 years and what we should expect going forward.โ
[…]
In extremely dry years, the longer-term plans under consideration by Reclamation would allow the water levels of the systemโs two main reservoirs to repeatedly fall below minimum power pool. Federal officials then would be forced to make recurring emergency cuts to the water supplies of the three states downstream of the reservoirs, creating uncertainty for millions of people and a massive agricultural industry…Letters from a number of Colorado entities โ including theย Northwest Colorado Council of Governments,ย irrigation districts, the Western Slopeโsย Club 20ย and county commissions from a vast swath of the state โ urged federal officials to present at least one plan that would hold up in extremely dry years.
โSound science dictates that Colorado River management must evolve to handle a permanently drier future,โ Tina Bergonzini, the general manager of the Grand Valley Water Users Association,ย wrote in her comments to the bureau. โThe current federal preference for predictability is an atmospheric impossibility given that studies indicate rising temperatures have already slashed river flows by a fifth.โ
[…]
The conflict on the Colorado is likely one of the worldโs first major water policy overhauls to grapple with the reality of climate change, saidย Brad Udall, a senior water and climate research scholar at Colorado State Universityโsย Colorado Water Center. In the past, Colorado River managers made operational tweaks and short-term deals to address drought. This time, itโs different.
โWeโre not looking at an incremental step here,โ Udall said. โWeโre looking at a complete redo of how we operate this resource that affects 40 million people.โ
Map of the Colorado River drainage basin, created using USGS data. By Shannon1 Creative Commons Attribution-Share Alike 4.0
Sometimes it feels like there are two parallel Southwestern United States out there.
One is naturally arid, is getting hotter and hotter by the year and is gripped by the most severe drought of the last millennium or more. Its water lifeline, the Colorado River system, is on the brink of collapse, and communities and farmers from Wyoming to Calexico are facing painful mandatory water cutbacks this summer.
And then thereโs the other one, a sort of fantasy world, or maybe just an oblivious one, in which new water diversion projects like the Lake Powell Pipeline remain on the table, state leaders prepare to go to legal war to protect their statesโ profligate water consumption, and a developer is breaking ground on a 2,300-acre โcity within a cityโ called Halo Vista in North Phoenix.
Halo Vistaโs developers are billing it as a companion development to TSMCโs $165 billion semiconductor fabrication facility complex. It will wrap around the industrial campus (thus the โhaloโ in the name), and plans call for some 30 million square feet of industrial, retail, office, research, and healthcare spaces along with 9,000 or more residential units.
โYou have to think about all the people at full build-out whoโll work in this area โ about 60 to 80,000 people,โ Greater Phoenix Economic Council President Christine Mackay told AZFamily. โTheyโll work in the Halo Vista science and technology park. They need restaurants, hotels, places to live โ and places to shop for what they need.โ
Historically, Arizonaโs economy was said to run on five Cs: copper, cotton, citrus, cattle, and climate. Copper is still going fairly strong, most of the citrus groves have given way to housing developments, alfalfa has surpassed cotton, and the beef-cattle have been replaced by dairy factories. Now another C โ computer chips โ is being added to the mix, as the Phoenix-area experiences a semiconductor manufacturing boom and a coinciding data-center buildup.
The tech industryโs expansion is adding economic diversity, making the city somewhat less vulnerable to 2008-like financial breakdowns. But as Halo Vista demonstrates, it is also feeding Phoenixโs dominant economic force, the Growth Machine. And both the Growth Machine and the data center/semiconductor boom need water, and quite a lot of it. This, in turn, increases Phoenixโs exposure to future water shortages, which seem more and more likely with each passing day.
According to TSMCโs draft environmental assessment, the first phase of its Phoenix fabrication plants will initially use about 4.75 million gallons of water per day, or 5,320 acre-feet per year, which would jump to about 19,400 acre-feet yearly if and when all three phases are built out. But the company says it will eventually install a recycling system that will bring that number down considerably. The 9,000 residential units in Halo Vista would use about 2,800 acre-feet per year (based on Phoenixโs current per-capita water consumption multiplied by a rough estimate of 20,000 people occupying those residences). Halo Vistaโs other industrial and commercial properties will consume an unknown additional amount of water.
So letโs say the whole development, including the โfabs,โ will use about 25,000 acre-feet per year โ less if the water efficiencies are realized, more if Halo Vistaโs tech district includes data centers or other water-intensive industries.
Thatโs a lot of water, or a drop in the bucket, depending on how you look at it.
On the one hand it is equal to about one-fourth of Nevadaโs total consumptive use from the Colorado River. Yes, the city of sin and excess only uses about four times more water than the TSMC/Halo Vista โcityโ will use.
On the other, itโs far less than the alfalfa farms in Maricopa County โ in which Halo Vista is located โ use for irrigation each year, which totals something like 500,000 acre-feet.1 And yet, Halo Vista/TSMC, once all built out in 20 years or so, will have a significantly larger economic output than a bunch of hay fields (which isnโt the only measure of value or even the most important one, and yet, well, water does flow uphill to money).
So yes, it is possible to sidestep water concerns by pulling out the โwhat about alfalfaโ comparison. But itโs also not all that productive.
Halo Vista, which is being built on a plot of uncultivated state land in the desert, is not displacing an alfalfa farmโs water use. Rather, it represents a new water use piled on top of existing consumption. The water will come out of Phoenixโs municipal system, and therefore officially has an โassured and adequateโ 100-year water supply, which is necessary in Arizona for this sort of development.
Yet thereโs nothing assured about Arizonaโs water future. Phoenixโs water comes primarily from high priority rights on the Salt and Verde Rivers, and from the Colorado River via the Central Arizona Project. But those rights will hardly matter if the rivers dry up: This yearโs Salt River Basin meagre snowpack had vanished by March 1, spring runoff peaked weeks ago, and flows are rapidly falling. Meanwhile, the Central Arizona Project has relatively low priority rights, meaning it will be the first to take cuts as the river shrinks.
In other words, aridification and the Colorado River crisis pose an existential threat to Phoenixโs tech boom and, well, Phoenix, itself, which is one of the reasons Arizona Gov. Katie Hobbs is preparing for a bitter legal fight with the feds and the Upper Basin states over the Colorado River.
The good news for the developers and the semiconductor makers is that agriculture continues to use a lot of water in Arizona. And where there is large consumptive use, there is also more room for increased efficiencies and, if it comes to it, โbuying and dryingโ the farms for their water โ which has its own negative consequences. The bad news is that the shortages to come may very well exceed the amount that could be wrung out of the existing farms.
Halo Vista, which is on a 20-year buildout schedule, is far from the only major water- and energy-guzzling development on slate for the increasingly arid West. And maybe itโs not realistic to expect all such development to come to a screeching halt simply because the water may run out sometime in the future. After all, climate change could cause more precipitation; maybe in 20 years weโll be worrying more about flooding than desiccation.
But you would think that planners and policymakers and the developers would at least act in line with our current reality, where resources, especially water, are limited. Halo Vista-esque projects should be required not just to certify an โassuredโ 100-year supply, but they also should have to offset new consumption with cuts somewhere else, whether itโs paying for farmers to install drip irrigation or funding treated wastewater recycling projects.
Continuing to consume water at current rates is one thing. Adding new uses on top of our current overconsumption is quite another.
***
And so it begins. It looks like residents of the small Arizona community of Kearney may lose their water altogether later this summer, making developments like Halo Vista look even more surreal.
The town sent this emergency memo out to residents in April:
Kearney sits in Arizonaโs โCopper Triangleโ along the banks of Gila River and in the proverbial shadow of the Hayden copper smelter smokestack. The town was established by the Kennecott Mining Company in 1958 to house residents displaced from Ray, Sonora, and Barcelona as the mineโs gaping Ray mine pit gobbled up the communities. Resolution Copperโs proposed Oak Flat mine is also nearby, as is Faradayโs proposed Copper Creek project.
Kearney has a maximum allotment of 610 acre-feet of water from the Gila River. This year, however, extreme drought conditions have brought the allotment down to just .76 acre-feet, forcing the town to impose severe restrictions on use to try to make it last until the monsoon arrives.
As for all the mines surrounding Kearney? Iโm guessing their dealing with their own water issues, but Iโd also wager that theyโre allowed a heck of a lot more than three-fourths of an acre-foot.
Condors perched on steel girders some 450 feet above the Colorado River. Jonathan P. Thompson photo.
๐ย Colorado River Chroniclesย ๐ง
In the comment section on the last Land Desk dispatch, reader wkarls reported on the Colorado Riverโs flows during a recent raft trip on the Grand Canyon.ย It got me to thinking about how low those flows might go and what that could mean.
Iโve only boated down the Grand Canyon once, back in October and November of 1995 with a group of slightly crazy Salida rafting folks. It was a beautiful, terrifying, sublime โ if somewhat debauched โ experience. During the trip, releases from Glen Canyon Dam โ which make up about 95% of the flow in the Grand Canyon โ fluctuated between 11,000 and 16,000 cubic feet per second, a number that was bolstered downstream after a good rainstorm moved through, turning the river that intimidating blood-and-chocolate-milk color. That seemed like plenty of water to me; it was certainly enough to generate waves big enough to toss our little rafts about like toys (did I mention it was scary as hell?).
Somewhat surprisingly, the releases were about the same in September of last year, bouncing between 10,000 and 16,000 cfs, which appears to have been an effort to get the annual flows past Lees Ferry up to about 7.5 million acre-feet to keep the Upper Basin in compliance with the Colorado River Compactโs non-depletion obligation. Then, on Oct. 1, the beginning of the 2026 water year, releases plummeted. This spring theyโve been in that 7,000 to 9,000 cfs range that wkarls mentioned.
Thatโs in line with the Bureau of Reclamationโs plan to release just 6 million acre-feet from the dam this water year: 6 million acre-feet per year averages out to about 8,200 cfs. Thatโs also right in line with the Grand Canyon Protection Actโs operating criteria, which set a minimum allowable release during the day (between 7 a.m. and 7 p.m.) at 8,000 cfs, while the minimum nighttime release is 5,000 cfs.
So, given all of that, we can assume that the flows shouldnโt drop much below current levels this summer. Of course, if conditions are worse than expected, then the reservoir could drop to 3,500 feet earlier than anticipated, which could force dam operators to further curtail releases to โdefendโ minimum power pool. If so, then you might see nighttime releases drop as low as 5,000 cfs. If thatโs not enough, then I suppose dam operators would have to go to a run-of-the-river scenario, where flows could plummet to 2,000 or 3,000 cfs, which would make rafting quite interesting.
๐ธย Parting Shotย ๐๏ธ
Colorado River at/around Lees Ferry in autumn 2024, when Glen Canyon Dam releases were around 8,000 cfs.
Colorado River at/around Lees Ferry in autumn 2024, when Glen Canyon Dam releases were around 8,000 cfs.
Colorado River at/around Lees Ferry in autumn 2024, when Glen Canyon Dam releases were around 8,000 cfs.
Long-term drought has reduced Colorado River system storage to about 36 percent of capacity, and the combination of the lowest snowpack on record and record-breaking March heat has further intensified drought conditions across the Basin. These compounding factors are creating elevated risks to essential water and power infrastructure that supply water to more than 40 million people, underscoring the need for immediate action.
Lake Powellโs water year minimum probable inflow is forecasted at just 2.78 million acre-feetโ29% of historical average and one of the lowest on record. Reclamationโs April โ24 Month Studyโ projects Lake Powell may decline to below 3,490 feetโthe minimum power pool levelโby August 2026 without major intervention. If Glen Canyon Dam declines below 3,490 feet, water releases would be only through the river outlet works, which could cause operational issues, uncertainty for users, downstream impacts, instability in regional power and water supplies, and a reduction in power generation.ย
Secretary of the Interior Doug Burgum met with Governors for the seven basin states, Arizona, California, Colorado, Nevada, New Mexico, Utah and Wyoming, and their designees again today to discuss the concerning hydrology and plans for operations.ย
โI am grateful for the Governors and their teams working diligently to find a solution to the complex challenges created by these unprecedented drought conditions which require immediate action,โ saidย Interior Secretary Doug Burgum. โInterior and Reclamation continue to coordinate with the basin states, tribes, Mexico and basin stakeholders as we make the decisions necessary to operate and protect the system.โย
To stabilize the system, Reclamation is moving quickly and initial plans include adding up to about 2.48 maf of water to Lake Powell by moving water from the upstream Flaming Gorge Reservoir and by reducing releases from Lake Powell.ย [ed. emphasis mine]
Through the 2019 Drought Response Operating Agreements, Reclamation is intending to release 660,000 acre-feet to 1 maf from Flaming Gorge Reservoir from April 2026 through April 2027. In addition, Reclamation is intending to reduce the annual release volume from Lake Powell to Lake Mead by 1.48 mafโfrom 7.48 maf to 6.0 mafโthrough September 2026 by utilizing section 6E of the Record of Decisionโฏfrom theโฏfinal 2024 Supplemental Environmental Impact Statement for near-term Colorado River Operations.ย ย
Together, these actions are expected to increase Lake Powellโs elevation by approximately 54 ft to at least elevation 3500 feet by April 2027. Through the current, ongoing DROA process, the basin states, tribes and partners continue to provide feedback related to the proposed releases. A final decision will be coming next week.ย
Flaming Gorge Reservoir now holds about 3.1 maf of water, which is 83% full. These actions are expected to lower the reservoirโs elevation by roughly 35 feet over the next year to approximately 59% of capacity. This will have no effect on contracted water rights at Flaming Gorge or Lake Powell. No additional releases from the other upstream initial units of the Colorado River Storage Project ActโBlue Mesa and Navajo reservoirsโare planned at this time, due to their low water levels and poor forecasted inflows.ย ย [ed. emphasis mine]
โGiven the severity of the risks facing the Colorado River system, it is imperative that we take action quickly to protect a resource that supplies water to 40 million people and supports vital agricultural, hydropower production, tribal, wildlife, and recreational uses across the region,โ saidย Assistant Secretary – Water and Science Andrea Travnicek. โAs we weigh current conditions and prepare for future operations by working with states, tribal nations and stakeholders, the Department of the Interior and Reclamation remain fully committed to taking the actions necessary to reduce impacts on water deliveries, safeguard critical infrastructure, and preserve as much operational flexibility as possible.โย ย
Basin-wide impactsย
Reclamation acknowledges that the proposed reduced releases from Lake Powell will accelerate the downstream decline of Lake Mead, with the potential for up to an additional 40% reduction to Hoover Damโs hydropower generating capacity as early as this fall. Reclamation and its lower basin partners are collaborating to conserve water in Lake Mead and maintain its water levels, even as releases from Lake Powell are planned to decrease.ย ย
The initial proposed drought response actions may also impact recreation across multiple sites. At upstream reservoirs, boating access may be reduced earlier in the season than normal. In the Grand Canyon, lower flow rates will affect rafting conditions, and fishing may be more challenging. At Lake Mead National Recreation Area, reduced water levels may further limit boating access. Reclamation is working with reservoir recreation management partners now and as the summer progresses.ย ย
The 2026 operational challenges come at a time of transition as the existing agreements that guided the operations of the Colorado River for the last two decades are set to expire at the end of the year. As we approach the new water year on October 1, the seven basin states have not reached consensus on a new operating framework. With time running out, there is a need for extraordinary collaboration for 2027 and beyond. In the absence of a consensus and following the completion of the NEPA process, the Interior Department will be prepared to determine operations for Post 2026 later this summer to provide certainty and stability for the Colorado River Basin.ย ย
To learn more about the Interior Departmentโs or Reclamationโs activities around the Colorado River, please visit theย Colorado River Basin website.ย
Colorado River “Beginnings”. Photo: Brent Gardner-Smith/Aspen Journalism
Glen Canyon downstream from Glen Canyon Dam. Photo credit: Allen Best/Big Pivots
Click the link to read the article on the Big Pivots website (Allen Best):
February 17, 2026
Sitting in the audience at the Colorado Water Congress in January, I was reminded of the days, weeks and months after 9/11. The impulse โโ fueled by rage, was to punch back โ at somebody, somewhere. The result, as we saw in Afghanistan after 20 years and three presidents, was far from satisfying. Osama bin Laden died, but the Taliban prevailed.
At the conference, a new state legislator from the Western Slope was full of righteous indignation about the Colorado River dispute. Colorado and other upper basin states were right, and those in the lower basin were wrong. We will prevail in court, he insisted. That would be the Supreme Court, where all disputes among states must go. And Colorado, legislators had been told, is preparing for just that possibility.
Much is at stake here. Itโs not just ranches on the Western Slope but nearly all the water rights allocated since 1922. Roughly half of water for Front Range cities comes from the Colorado River headwaters and for towns on the eastern plains as far east as Fort Morgan. The mountains towns at the Colorado River headwaters, most of their water rights are post-1922. The list goes on and one.
No wonder Colorado has its fur up.
Speaking later in the morning, Jim Lochhead, a figure prominent in Colorado water affairs since the 1970s, did not disagree with Coloradoโs fundamental position.
Colorado insists that Arizona and California, especially, have caused the big reservoirs, Powell and Mead, to decline. The states โ together, with Nevada, they constitute the lower basin โ have reduced their water use substantially since 2002 โ but not in proportion to the declines caused by warming temperatures and declining snowfall. The lower-basin states created the problem of the reservoirs now at perilously low levels. They bear the heaviest burden of refilling reservoirs by simply agreeing to take less water.
Lochhead also warned of inflexibility. โThe upper basin cannot bail out the lower basin,โ he said. โBut (negotiators) have to be given room to compromise.โ
โIf the negotiators are forced to focus only on protecting what each of them thinks is legally theirs on paper, they canโt work on identifying and building the tools and strategies needed to make sure we can get away from crisis management and secure our future,โ he said that January morning in Aurora.
Upper-basin states say that because they are at the headwaters, they have nothing equivalent to Powell and Mead upstream to provide certainty. If it rains and snows, there is water. If not, then water users have less or none. Colorado water officials say some with water rights dating to the 1880s have already had to go without.
My kids and their friends built a small terrain park in front of their house near Sloans Lake after the March 2003 St. Patrick’s Day blizzard.
The year 2002 was seminal. Modest snowfall was followed by an early and unusually warm spring. Peak runoff was barely noticeable. In Denver, a city that gets half its water from the Colorado River headwaters, sprinklers were turned off, green grass turned brown. Aurora, also heavily dependent upon Colorado River water, was within a few months of crisis in 2003 when a miracle occurred โโ three feet of snow on St. Patrickโs Day.
Downstream in Arizona and California, far from this drama in the headwaters, life continued with no fear and little change. The upstream reservoirs, Powell and Mead, had water.
We have another dry year, and the Colorado River right now is expected to deliver less than the 3.8 million acre-feet at Lee Ferry, just below Glen Canyon Dam, than it did in 2002. Flows were 17 to 18 million acre-feet in the 1920s, when the Colorado River Compact was created and adopted. The long-term average was less, 14.6 to 15.1 million acre-feet. In this century, it has dipped to 12.1 to 12.5 million acre-feet. Some expect this trend to continue amid the warming and drying now underway in the basin. Might it go below 10 in a few more decades?
The lower basin until relatively recently used 10 to 11 million acre-feet. As for the upper basin, states โ Wyoming, Utah and New Mexico, in addition to Colorado โthey have used 3.5 to 4.5 million acre-feet. It depends upon whether it snows.
The end of a boat ramp in Antelope Canyon was high above the water of Lake Powell in May 2022, and water levels have dropped more now. Photo/Allen Best
โEveryone knows Lake Powell is now in a dire situation,โ said Lochhead in a panel after the state legislators had left. โWe have gone from 86% full to I think around 25% full today. Powell is in danger of being over a million acre-feet below deadpool next year. That should scare all of us.โ
Deadpool is when the water level in a dam-created reservoir drops so low that water cannot be released and used for drinking, irrigation and power. In the last several years, at least one book, Zak Podmoreโs Life After Dead Pool, has been written about the Colorado River with that threshold in mind. Other books and thousands and thousands of newspaper, magazine and website postings have mentioned it.
The back of Glen Canyon Dam circa 1964, not long after the reservoir had begun filling up. Here the water level is above dead pool, meaning water can be released via the river outlets, but it is below minimum power pool, so water cannot yet enter the penstocks to generate electricity. Bureau of Reclamation photo. Annotations: Jonathan P. Thompson
Lochhead warned against hardened positions that put the Colorado River problems in front of the Supreme Court. Colorado has not fared well in water cases there the last 100-plus years.
For several decades, Lochhead was a water attorney for Holland and Hart, working from an office across from the post office in Glenwood Springs. It was a good place to raise a family of skiers, he once told this writer.
During that time on the Western Slope, Lochhead represented Colorado on Colorado River affairs in several capacities. Then, from 2010 until 2023, he was CEO of Denver Water, the stateโs largest water utility. In the last few years, his life has been lower profile. But, as his remarks at the Water Congress demonstrated, he is still paying close attention.
Litigation in the Colorado River Basin, said Lochhead, is a โworst-case scenario, resulting in economic and political disruption and uncertainty no matter the outcome.โ This message, he said, would be the same whether given to audiences in Arizona or Colorado.
โThere are tens of millions of dollars of taxpayer dollars that will be spent on litigation over a 10- or 20-year period, and the outcomes will be uncertain. The upper basin has a lot of good arguments, and so does the lower basin.โ
Colorado appeared before the Supreme Court in 1907. It claimed full use of the Arkansas River. The Supreme Court disagreed.
Delphus Carpenter. Picture courtesy Colorado State University library
In 1922, Colorado lost to Wyoming in a case involving the North Platte River. Colorado has insisted upon prerogatives because it was the source of the water. That defeat caused Coloradoโs lead negotiator, Delph Carpenter, to conclude it must shelve the idea that being at the headwaters would trump the claims of downstream states on the Colorado River. Carpenter became the most important figure in crafting the Colorado River Compact of 1922.
โBut of course, litigation under the compacts continued, and Colorado was ordered to pay some $34 million to Kansas in 2001 and to dry up Bonnie Reservoir and undertake the process of drying up 25,000 acres of farmland in the Republican River Basin,โ Lochhead continued.
The headwaters of Whiskey Creek, between Minturn and Avon, in the Eagle River Valley, had plentiful snow in the mid-1990s. Photo/Allen Best
Lochhead described several layers of complexities.
โThis isnโt litigation just between two or three states. This is litigation between four states that have a common obligation under the compact (the Upper Basin) versus three other states requiring coordination on strategy, negotiating remedies and settlement between the states,โ he said.
Nor is it simple a matter of the two basins, upper and lower, in conflict. The 30 federally recognized tribes in the Colorado River Basin have their interests, and they are not all the same. They also have rights that in most cases supersede those of the states. Public interest groups can have different interests. And, if the federal government makes the decisions about future uses of the Colorado, each and all may โsue the federal government over any unilateral federal action or decision, and that litigation can take all kinds of different forms.โ
โOther entities may seek to intervene in the litigation. The United States certainly would, as we have seen in Texas versus New Mexico. But when tribes seek to intervene, if the country of Mexico seeks to intervene โ what happens during litigation?โ
Mexico, under a 1944 compact, is to get 1.5 million acre-feet annually.
Plus, the three other upper-basin states may disagree with Colorado. Colorado uses by far the most water of the four, as a compact among them reached in 1948 specified. Alone, though, it has pushed that limit.
In other words, going to water war sounds vaguely patriotic. The reality of the courtroom may be less heart-thumping.
Boulder has very good water rights but depends somewhat on imported Colorado River water. Photo/teofilo and Wikimedia Commons
Consider what if Colorado did lose? Hereโs where the story gets grim. The Front Range cities, the ski towns, even farmers in the South Platte and Arkansas valleys to the Nebraska and Kansas borders.
Lochhead described the stakes involved, the gamble of letting the black-robed justices in D.C. decide the fates of the seven base states. โDo we find ways to work together across the basin to address the crisis together?โ
He asked that question more than two weeks before Valentineโs Day, the deadline set by the Bureau of Reclamation without obvious irony. Without agreement by the seven states about how to share the diminished river, it is now up to the federal government to step in. On Friday, after the states had reported still no break-through, I asked Lochhead by e-mail if his remarks from January were still appropriate. They were, he said.
โIt seems as I write this, that โ as for the last two years โ the states remain stuck in political talking points and the federal government is not applying necessary pressure. And, in the meantime, Lake Powell is headed toward run-of-the-river operations, which precipitates crises on all kinds of different levels,โ he replied. โThis will lead to the federal government having to make decisions that will severely impact both upper and lower basin economies and the environment, not to mention endless, expensive and risky litigation. This all could have been avoided but here we are.โ
โWow!โ said Eric Kuhn, a former general manager of the Colorado River District in Glenwood Springs, in a LinkedIn post over the weekend. โThe secretary (of Interior) needs to step up and make some hard decisions!โ
Sparking Kuhnโs remarks was a new Bureau of Reclamation report on Friday of probable flows in the next two years. The best of them leaves Powell in bad shape. In fact, the bureauโs โprobableโ flows have frequently been too optimistic. The dimmer view, called โprobable minimum,โ sees Powell levels dropping below the elevation needed to produce hydropower as early as August. Minimum power pool is above deadpool.
Note the dotted red line. If says that itโs possible that power production at Glen Canyon Dam could end by August.
From a Colorado perspective, lower-basin states have a sense of entitlement that defies common sense. Whether it defies the law is another matter. Kuhn told me years ago that the key provision in the 1922 compact that can be interpreted in two very different ways.
It says: โThe States of the Upper Division will note cause the flow of the river at Lee Ferry to be depleted below an aggregate of 75,000,000 acre feet for any period of ten consecutive yearsโฆโ
But as to that disagreement: Upper-basin states see this meaning that they have no control over the weather. They did not cause the reduced flows. Hang the weather, says the lower-basin state. The โdo not causeโ clause means that if only 7.5 million acre-feet is all that is in the river, it all has to flow downstream.
Typo or not, the lower-basin perspective sees this as a cut-and-dried issue. If Denver must go without transmountain diversions or taps in Winter Park or Vail must go dry, so be it. Not their problem.
JB Hamby, Californiaโs representative on Colorado River affairs, articulated exactly that sentiment on Friday. โThe 1922 Colorado River Compact requires the Upper Basin to deliver an average of 8.25 million acre-feet annually to the Lower Basin and Mexico,โ he said in a statement. โThat delivery obligation is fixed in law, even when the river produces less water.โ
At the January forum, Amy Ostdiek, who heads the legal team for the Colorado Water Conservation Board in interstate and federal matters, laid out the basic numbers Colorado puts front and center: The 1922 compact laid out a split of roughly 7.5 million acre-feet for each, the lower and upper basins, with the upper basin required to allow another one million acre-feet to flow down river to account for evaporation and losses.
โWe have to be honest about what has caused the threat that Lake Powell might not be able to make the releases that the lower-basin states believe they are entitled to. It was directly caused by their overuse of Lake Mead, which drew down Lake Powell to the point it is today,โ said Ostdiek.
Again, the upper-basin states insist upon lower-basin states sharing the uncertainty of snow and rain. To rebuild the storages will mean they take less water.
โThis is going to be hard for those who are not accustomed to taking less in dry years, but the benefit of reaching a state-state deal is that if weโre able to do that, it provides an opportunity or a gradual and softer landing โ and more likely federal dollars for those who need that support as they adapt to this reality.โ
The upper basin, though, refuses to budge on the idea that it can develop all 7.5 million acre-feet of water apportioned it by the compact โ if the water is there, of course.
In their January remarks, neither Lochhead nor Ostdiek offered thoughts about on-the-ground solutions. Ostdiek pointed to programs in both the upper and lower basin with varying success. In their defense, they only had an hour.
Can the lower-basin negotiators truly misunderstand Coloradoโs position? Ken Neubecker, of Glenwood Springs, formerly of environmental groups, thinks so.
โThey have been accustomed, some would say addicted, to the reliable delivery of stored water for all their needs since Hoover Dam was built and began releasing stored water some 90 years ago,โ he wrote in a post on Substack. โOnly until very recently, even in the face of an unrelenting drought, have they had to deal with shortages. For the Upper Basin, shortage is an annual reality.โ
Arizona Navy photo via California State University
Rod Proffitt, from Pagosa Springs, (and a board member for Big Pivots) points to Arizonaโs history of going to courts to resolve river issues. โThey even sent out the National Guard one timeโ (in a dispute with California),โ he observed. And now Arizona, more than any other state, has its back to the wall.
Phoenix had native water, but expansive growth, among the fastest in the nation, has been enabled by imported Colorado River water since the 1990s. Photo/Allen Best
Most instructive, at least as understanding Arizona, may be George Packerโs 25,000-word piece, โWhat Will Become of American Civilization,โ in the July/August 2024 issue of The Atlantic. During the prior year, Packer had spent several weeks or more, winter and summer, primarily in the Phoenix metropolitan region, to analyze its politics and people.
Most perplexing, he found, was the perfervid belief in population and commercial expansion that defies limitations of a climate where a simple fall onto concrete during summer can produce second-degree burns.
Colorado, of course, has its own love of economic expansion. It is dwarfed by Arizona. The latter grew 824% in population from 1950 to 2016 while Colorado grew 318%.
Water is crucial to these expansions, and Arizona has tried to disregard limits. Packer explicitly uses โwaterโ 158 times in his report and implicitly so elsewhere. He started out with a description of the Hohokam Indians and their water infrastructure that can still be seen in Phoenix. He barely mentioned climate change but did use โheatโ 32 times. He talks about water for data centers and the suburban sprawl.
โPhoenix makes you keenly aware of human artificeโits ingenuity and its fragility,โ he says.
Weโve seen the ingenuity of water delivery systems in the broader Colorado River Basin, a region that extends from Coloradoโs borders with Nebraska and Kansas to the Pacific Ocean. We now understand the fragility, and it makes us very, very uncomfortable.
Anything that forces change can bring out our worst, but then sometimes it can bring out our best. Can it get any worse on the Colorado River?
And also:
The five alternatives
The Bureau of Reclamation issued five alternatives in its draft environmental impact statement for how it will operate Glen Canyon Dam. The federal government, said Lochhead, can only implement two of them.
The first two, said Lochhead, are deeply flawed: No action and the second would impose shortages on Arizona and Nevada approaching 7 million acre-feet. Both alternatives would almost certainly be challenged in court. Both would quickly result in Powell reaching deadpool with compact litigation and unspecified federal actions in the upper basin to protect Powell.
The three other alternatives contain the essential elements of an agreement among the states, he said, including up to four million acre-feet of shortages in the lower base, but not by priority, and leaving pools in the two big reservoirs for conserved water by both upper and lower basins.
โNot surprising, the alternatives with the highest shortages in the two basins and the greatest flexibility perform the best again potential hydrology that illustrates the magnitude of the problem weโre in, and the actions required by both upper and lower basins to address it,โ he said. For any of this to work, he added, โwe need long-term funding to mitigate the impacts and build resilience in both basins.
A brief recent history:
Lochhead also sketched a brief history of agreements during recent decades on the Colorado River. His excerpted comments follow:
This slide shows the combined contents of lakes Powell and Mead for the last 25 years juxtaposed against some of the key events and agreements that have occurred during that 25-year period.
Despite the best efforts of the states, reservoir levels have continued to decline over time. The states, though, have made important agreements and have significantly reduced uses in response to changing conditions on the river. But clearly, much more needs to be done.
Starting in the early 1990s we had 10 years of negotiations that led to Federal Surplus Guidelines in 2001. You can see, at the beginning of this century, the reservoirs were virtually full, and we were arguing about surpluses.
Those guidelines also contained a deadline for California to finalize and implement the Quantification Settlement Agreement among California agencies to define priorities and implement ag-urban transfers necessary to get Californiaโs water use from 5.3 million acre-feet a year down to 4.4 million acre-feet a year. The negotiations were driven by the direct involvement and pressure from Secretary (Bruce) Babbitt and his team at the Department Interior. Thatโs a theme โ federal pressure being necessary to agreements of the Basin States over the last 25 years.
The California agencies had to come together and agree on how they were going to reduce their use by 800,000 acre-feet. They couldnโt reach agreement, and so Interior imposed limitations on water use in the Imperial Valley, prompting litigation that was eventually settled in 2003.
Lochhead credited Interior Secretary Gayle Norton and Bennet Raley, the assistant secretary for water, for pushing California to this agreement. Both, incidentally, were Colorado natives, Norton from Denverโs northern suburbs and Raley from southwest Colorado. Upon Raleysโ departure from the Interior in 2004, the Los Angeles Times had this to say:
โRaley may be remembered best as the folksy but firm bureaucrat who finally made good on the federal governmentโs long-standing threat to put California on a water diet. He did it by forcing the state to agree to stop using more than its share of the Colorado River, freeing up water for other Western states.โ
Despite the arguments about surplus waters in the 1990s, some observers could see troubles ahead of a river overcommitted. Troubles arrived in a big way with the water-poor year of 2002 โ a runoff that may turn out better than this yearโs.
Lochhead recalled that the upper-basin states, wanting to maintain storage in Lake Powell, asked the Interior Department โ the operator of the dam โ to release less than 8.23 million acre-feet from the reservoir. Lower-basin states, primarily Arizona, resisted. Difficult meetings ensued, litigation was threatened, legal war chests were readied โ then Norton interceded, issuing a deadline by the end of 2007 for an agreement about lower basin shortage guidelines and operational guidelines for releases of water from Powell and Mead.
The states met that deadline โ unlike those of the last year โ and the guidelines helped. But, said Lochhead, they have proven, over time, to be inadequate. It seemed like every year we were one foot over or under, those triggers that caused distrust and accusations between the upper and lower basins of gaming the system.
Meanwhile, the river produced less than anybody had expected. The states agreed to additional interim measures, and they, too, proved inadequate.
In 2019, the states agreed to a drought contingency plan and drought response agreement, more interim measures designed to protect the systemโs major reservoirs from falling to critically low levels. The lower-basin states agreed to plan that added an extra layer of protection. The goal was to maintain a half million acre-feet of water in Lake Mead.
Declines in lower basin
Lochhead showed a chart of water use in the lower basin but with caveats. It did not include the tributaries, including the Gila River โ- a conversation unto itself. Nor does it show reservoir evaporations and losses, which add up to about 1.5 million acre-feet annually, what is often called the structural deficit.
The blue line at the top showed a significant reduction in use starting in 2001, then a fairly steady use of about 7.5 million acre-feet until about 2017, when withdrawals begin to drop due to shortages.
Uneven use in upper basin
The next slide showed the variations of use by the upper-basin states. The chart shows ups and downs, which can be attributed to wetter and dryer cycles. Overall, though, water use in the upper-basin states has remained fairly constant. Those uses, he added, do not include reservoir evaporation โ because those losses are explicitly included in upper-basin consumptive use.
โPart of the argument, part of the confusion, comes from these different accounting methodologies in the upper and lower basins,โ he said.
The upper basin has made a couple of arguments. One is that the upper basin has the right to develop more water, up to 7.5 million acre-feet, but also that hydrology is the limiting factor. Users suffer shortages every year. Iโm not sure you can have both.โ
Again, hydrology is the limiting factor.
Map of the Colorado River drainage basin, created using USGS data. By Shannon1 Creative Commons Attribution-Share Alike 4.0
Click the link to read the report from “Dancing with Dead Poll” on the Getches-Wilkinson website (Jack Schmidt1, Anne Castle2, John Fleck3, Eric Kuhn4, Kathryn Sorensen5, Katherine Tara6) Here’s Chapter 1:
In Brief
The rains of mid-October caused significant flooding in the San Juan River basin and increased reservoir storage throughout that basin and in Lake Powell.7ย However, basinwide reservoir storage remains low, and the October rainfall offerings were insufficient to alleviate the peril of declining overall water supply.
While the attention of the Basinโs water management community remains focused on the thus far unsuccessful effort to forge a seven-state agreement on future long-term operating rules, the Basin continues to face the risk of short-term crisis. If winter 2025-2026 is relatively dry and inflow to Lake Powell and other Upper Basin reservoirs is similar to that of 2024-2025, low reservoir levels in summer 2026 will challenge water supply management, hydropower production, and environmental river management. Under such a scenario, it is likely that less than 4 million acre feet in Lake Powell and Lake Mead would be realistically available for use during the nine months between late summer 2026 and the onset of snowmelt runoff in 2027. If winter 2026-2027 is also dry, water supply would be further constrained. The present reservoir operating rules that remain in place through 2026 are insufficient to avert this potential water supply crisis. Action to further reduce consumptive water use across the basin is needed now.
How did we get here?
The Basinโs reservoirs were nearly full in late summer 1999,8ย acting as a buffer against dry years and serving their fundamental purpose. At that time, the 46 Colorado River Basin reservoirs tracked by the Bureau of Reclamation in its Hydro database held 59.5 million acre feet (maf) in active storage,9ย more than four times the Basinโs average consumptive uses and losses in the 1990s (Fig. 1).10ย Beginning in 2000, five years of below average runoff11ย resulted in a 46% reduction in storage in the Basinโs reservoirs.12 During that time, the reduction in storage in Lake Powell and Lake Mead accounted for 90% of the Basinโs total loss in storage, because most of the Basinโs water was stored in those two reservoirs.
Figure 1. Graph showing active storage in Colorado River basin reservoirs between January 1, 2021, and November 30, 2025. Credit: Jack Schmidt/Center for Colorado River Studies
During the next fourteen and a half years, the amount of storage in the Basinโs reservoirs changed little, despite four years of large runoff (2005, 2011, 2017, and 2019). The increase in storage during the few wet years was nearly completely consumed during the more frequent dry years, and active storage in Powell and Mead was only 5% greater in late July 2019 than it had been at the beginning of 2005.13ย When dry years of low runoff returned between 2020 and 2022,14ย the Basinโs water users had little of the buffer that they had at the beginning of the 21st century. Combined active storage of Powell and Mead was halved again between mid-July 2019 and mid-March 2023,15ย reducing the combined contents of these two reservoirs to only 27% of what it had been in late summer 1999.16ย If next winterโs runoff is as low as it was in 2025ย 17ย and consumptive use is not significantly reduced, Powell and Mead will drop below the previous unprecedented low stand of mid-March 2023.
How much of active storage is realistically available?
One of the challenges of the current water supply crisis is uncertainty over how much water is actually available in the reservoirs for use. Although Reclamation regularly reports the amount of water in active storage, our analysis identifies realistically accessible storage as the more appropriate metric of the amount of water that is available for use without challenging the integrity of the dam structures, efficient production of hydroelectricity, or implementation of environmental river management protocols, especially in Grand Canyon.
The back of Glen Canyon Dam circa 1964, not long after the reservoir had begun filling up. Here the water level is above dead pool, meaning water can be released via the river outlets, but it is below minimum power pool, so water cannot yet enter the penstocks to generate electricity. Bureau of Reclamation photo. Annotations: Jonathan P. Thompson
Reservoir water that can be physically released from a dam is termed active storage. In virtually all reservoirs, there is a small amount of water below the elevation of the lowest outletsโthe infamously named dead pool. Active storage is everything above dead poolโwater that can be physically released through the reservoirโs lowest outlets.
We know, however, that not all the water above dead pool is readily usable. Engineering assessments have indicated that infrastructure constraints at Hoover and Glen Canyon Dams require that higher reservoir elevations be maintained, thereby constraining utilization of the lowest part of the active storage. We defined realistically accessible storage as the volume of water whose release does not impact previously identified engineering or hydropower-production constraints.
At Glen Canyon Dam, for example, the lowest release tubes, called the โriver outlets,โ are at elevation 3370 ft. Reservoir water below that elevation cannot be released and constitutes the dead pool. Above the river outlets, at elevation 3490 ft, are the intakes for the power generating turbines, known as the penstocks. The penstocks are the conduits that withdraw water from the reservoir into the powerplant to generate electricity, and thereafter discharge the water to the Colorado River downstream from the dam. When the reservoir falls below the elevation of the penstocks, the river outlets are the only means of discharging water through the dam (Fig. 2). The river outlets are not routinely used to release water; virtually all normal releases go through the penstocks.
Experience has shown that the river outlets were not designed for continuous release at the discharge rates required to meet downstream obligations. If the river outlets were to be used continuously, there is significant concern that structural damage to those outlets could occur.18
Accordingly, Reclamation has determined that it will take steps to avoid Lake Powell elevation declining below 3500 ft, considered a safe elevation for continuous withdrawal of water through the penstocks without risk of harm caused by cavitation to the turbines that produce electricity.19ย Similarly at Lake Mead, Reclamation has indicated its intent to protect the reservoir from going below elevation 1000 ft.20
Figure 2. Diagram showing schematic of Glen Canyon Dam elevations at which Lake Powellโs waters can be released downstream, and the volumes of water defined by these elevations. Active storage between 3370 and 3500 ft is not realistically accessible for continuous downstream release without risk to engineering infrastructure at the dam and powerplant. Hydroelectricity cannot be produced below 3490 ft, and 3500 ft has been established as a minimum safe level for intake through the penstocks.
The total volume of active storage in Lake Powell above dead pool but below elevation 3500 ft is 4.2 maf. Release of this stored water is constrained, because it cannot be safely withdrawn through the penstocks, and continuous use of the river outlets is considered unwise. At Hoover Dam, there is 4.5 maf of active storage below elevation 1000 ft, also not realistically accessible. In these two largest reservoirs of the Colorado River Basin, there is a total of 8.7 maf of active storage below the elevations required for safe and efficient operation of the infrastructure (Fig. 3). Thus, of the 14.9 maf of active storage at Lake Powell and Lake Mead on November 15, 2025, only 42% of that active storage, 6.2 maf, was realistically accessible.
Figure 4. Graph showing active storage in Lake Powell, Lake Mead, and in Powell+Mead between January 1, 2023, and November 30, 2025. Credit: Jack Schmidt/Center for Colorado River Studies
Implementation of environmental river management protocols at Glen Canyon Dam are constrained when the elevation of Lake Powell is low. Since 1996, controlled floods, administratively termed High Flow Experiments (HFEs), have been conducted at Glen Canyon Dam to rebuild eddy sandbars along the riverโs margin and conserve sediment. HFEs are now an essential component of the Long Term Experimental and Management Plan for Glen Canyon Dam.21ย Reclamation did not, however, release an HFE in 2021 or 2022 when sediment conditions were sufficient to trigger implementation of the HFE Protocol because Lake Powell was low. In early October of those years, when decisions about implementing HFEs were made, active storage in Lake Powell was 7.3 maf (elevation 3545.3 ft) and 5.8 maf (elevation 3529.4) in 2021 and 2022, respectively. Reclamation cited low storage as the reason not to release those controlled floods.22ย Although administrative decisions change with time, it is doubtful that any HFEs would be released if Lake Powell fell below elevation 3500 ft.
Low reservoir levels also impact Reclamationโs ability to control the invasion into Grand Canyon of smallmouth bass, and other warm water reservoir fish species, that dominate the recreational fish community of Lake Powell. These nonnatives are significant predators and competitors of endangered or threatened native fish species and live near the surface of Lake Powell. At moderate and low reservoir elevations, water withdrawn through the penstocks (termed fish entrainment) includes some fish that survive passage through the powerplant turbines and are delivered into the Colorado River downstream from the dam. These fish have the potential to successfully spawn downstream from the dam if river temperatures are relatively warm, such as occurs when Lake Powell is low and water is only released through the penstocks.
This infographic shows how as Lake Powell water levels decline, warm water containing smallmouth bass gets closer to intakes delivering water through the Glen Canyon Dam to the Grand Canyon downstream. Credit: U.S. Geological Survey
Reclamation has implemented a protocol to eliminate the potential of smallmouth bass population establishment in Grand Canyon by releasing some cooler water through the river outlets when the water released through the penstocks is warm. The objective of these Cool Mix releases is to disrupt smallmouth bass spawning downstream from the dam. Water released through the river outlets bypasses the powerplant and does not produce electricity, and Western Area Power Administration (WAPA) must purchase electricity on the open market to replace electricity that the agency contractually committed to provide. WAPA estimated that the cost of replacing contracted electricity was $18.9 million23ย and $6.5 million24ย during the Cool Mix releases of 2024 and 2025, respectively. The risk of fish entrainment from Lake Powell increases significantly as Lake Powellโs elevation drops, and the need to implement the Cool Mix protocol therefore increases. The risk is minimized if Lake Powell is higher than 3590 ft (10.8 maf active storage) and significantly increases when Lake
Powell is below 3530 ft (5.8 maf active storage).25 When water is no longer withdrawn through the penstocks, the risk of entrainment decreases, because all water passes through the lower elevation river outlets.
What would happen if the coming winter and spring snowmelt is similar to 2024-2025?
In anย analysis released in September 2025, we reviewed what might happen in the coming year if runoff is the same as it was last year and Basin consumptive uses and losses are the average of the past four years. We used a simple mass balance approach and estimated the available water supply and consumptive uses and losses, and calculated the difference between the two. The available water supply is the sum of the natural flow of the Colorado River at Lees Ferry plus inflows that occur in the Lower Basin, primarily in Grand Canyon. Consumptive uses and losses are those associated with diversions that support irrigated agriculture, municipal and industrial use, water exported from the Basin by trans-basin diversions, and reservoir evaporation. The difference between supply and use is the net effect on reservoir storage. We then estimated the effect of the Basinwide imbalance between supply and use on the combined realistically accessible storage in Powell and Mead, i.e., above elevations 3500 and 1000 ft in Lake Powell and Lake Mead, respectively.
In the scenario that we considered, we assumed that natural flow at Lees Ferry in the coming year will be 8.5 maf, the same as in Water Year 2025,26 and inflow in the Grand Canyon is 0.8 maf. Thus, we assumed a total supply in the coming water year of 9.3 maf. We analyzed a scenario wherein consumptive uses and losses in the United States portion of the Colorado River would be the average of the most recent four years (2021-2024), namely 11.5 maf,27ย and we assumed that 1.4 maf would be delivered to Mexico.
The gap between supply and use under this scenario is 3.6 maf, which would have to be met by additional withdrawals from reservoir storage. Assuming that 75% of this deficit would be withdrawn from Lake Powell and Lake Mead (2.7 maf), then the realistically accessible storage in these two reservoirs would be reduced to 3.5 maf, slightly less than the 21stย century low that occurred in mid-March 2023 (Fig. 3). Our analysis of this one realistically low inflow scenarioโthe coming yearโs supply is just like last yearโs and consumptive uses and losses are the average of the past four yearsโis consistent with, but less dire than, Reclamationโs most recent 24-Month Study minimum probable forecast28 for the coming year. That study projects that total storage in Lake Powell and Lake Mead will be drawn down by 3.8 maf during the next year, 2.9 maf from Lake Powell alone. Under Reclamationโs minimum probable projection, the elevation of Lake Powell would drop below 3500 ft in August 2026. All of the remaining realistically accessible storage, 2.5 maf in the scenario modeled by Reclamation, would be in Lake Mead. Under the assumption that the current operating rules remain in effect in 2027, Reclamationโs projection is that the elevation of Lake Powell would stay below elevation 3500 ft through at least July 2027.
Further complicating the situation is that the status and ownership of water in Lake Mead at very low storage levels is unclear. Lake Mead holds (a) water available for allocation in the Lower Division under the prior appropriation system, (b) at least some amount of the water due to Mexico under treaty obligations, and (c) assigned water. Assigned water, commonly known as Intentionally Created Surplus or ICS, is water that can be delivered independent of the Lower Basinโs prior appropriation water allocation system and that is held in Lake Mead by the Secretary of the Interior for the benefit of a specific entity. Assigned water also includes delayed water deliveries held for the benefit of the Republic of Mexico that can be delivered subsequently in amounts in excess of the U.S. treaty obligation to Mexico of 1.5 maf/year. Owners of assigned water have the right to withdraw that water when Lake Mead water levels are above 1025 ft, but entitlement holders in the priority system also have a right to water deliveries, as does Mexico via treaty.
Sketches by Floyd Dominy show the way he’d end the Glen Canyon Dam. From the article “Floyd Dominy built the Glen Canyon Dam, then he sketched its end on a napkin” on the Salt Lake Tribune website.
So long as there is water in Lake Mead adequate to fulfill all required and requested deliveries, no conflict arises. However, as the amount of water in Lake Mead decreases, the potential for a clash increases. International treaty obligations take precedence over deliveries pursuant to the priority system within the U.S., but it is unclear how competing priorities and entitlements will be resolved within the U.S. Holders of higher-priority entitlements would likely contest the Secretaryโs authority to reduce their deliveries while withholding assigned water from the priority system. As of the end of 2024, there was approximately 3.5 maf of assigned water in Lake Mead, almost the same as the amount of realistically accessible water in storage above elevation 1000 ft. If Lake Powell ever became a โrun of the riverโ facility, the potential for conflict over access to water in Lake Mead would also increase.
Implications
We are not weather forecasters and have no crystal ball that reveals the coming winter snowpack. We are not predicting that our assumptions about the gap between supply and use/losses and the resulting drawdown of Lake Powell and Lake Mead will inevitably occur. Our scenario is merely one of many possibilities, but our assumptions are sufficiently realistic to serve as a warning of how close the Basin is to a true water crisis. Our results should serve as a call to action. We need to adopt additional and immediate measures across the Basin to reduce water consumption even further during the next year, well before any new guidelines are in place.
Taking steps now to decrease consumptive uses across the Basin will reduce the need to implement draconian measures next summer or in the following years. Every acre foot saved now is an acre foot available for our future selves, slowing the rate of reservoir decline and creating more room for creative Colorado River management solutions. If, on the other hand, we delay reducing water usage and addressing reservoir drawdown, we may find ourselves in more significant distress at the beginning of the Post-2026 guidelines. As weย wrote in October, continued reduction in Lake Powell releases also brings the Basin perilously close to the Colorado River Compact โtripwire,โ the point at which the ten-year rolling total of water delivered from the Upper Basin to the Lower Basin might trigger litigation asking the U.S. Supreme Court to interpret long avoided ambiguities in rules written a century ago by the drafters of the Colorado River Compact.
We do not presume to make specific recommendations about the steps that should be taken immediately to reduce consumptive use in the Basin. There are many smart and experienced individuals in the Colorado River community whose sole focus is on the mechanics of operating the Colorado River water system and the impacts of operations on their particular constituencies.
We can, however, highlight the available mechanisms for reduction of consumptive use that should be explored for their immediate utility in diminishing the looming jeopardy to the overall system. Such mechanisms include:
Releases from federal reservoirs upstream of Lake Powell to stabilize storage in Lake Powell.
Such releases would be made pursuant to the Drought Response Operations Agreement or similar successor agreement or pursuant to the Secretary of the Interiorโs inherent authority to operate federal water projects. Obviously, such releases do nothing to solve the imbalance between supply and demand and will create additional depletions in the system when these reservoirs are refilled. Such releases can, however, provide a temporary bulwark against exceptionally low levels in Lake Powell.
Additional reductions in deliveries from Lake Mead under the Secretaryโs Section 5 delivery contracts in the Lower Basin, as authorized by Section II.B.3 of the decree in Arizona v. California, 376 U.S. 340 (1964).
By reducing deliveries from Lake Mead, releases from Lake Powell could also be reduced without the risk of causing exceptionally low storage in Lake Mead.
Extension of system conservation programs in the Lower Basin, and facilitation of an Upper Basin water conservation program, both funded through compensation from federal or state governments or other water users in the Basin, and requiring specific quantities of saved water.
Relying on compensated annual forbearance alone is unsustainable, however, because it is not feasible to pay water users in the long term to forgo the use of water that nature no longer supplies. Permanent reductions in consumptive use are both necessary and also the most productive use of limited funding. In addition, to be effective, changes to state law in some Upper Basin states may be necessary, including recognition of water conservation as a beneficial use for the purpose of avoiding litigation concerning the Colorado River Compact. Finally, authorization for shepherding of saved water to the intended place of storage is essential, including across state borders.
Reductions in deliveries to Mexico through negotiation of a new minute.
Reductions in consumptive use by federal water projects in the Upper Basin, if allowable pursuant to the Secretaryโs authority.
It should be noted, however, that in order to benefit the Colorado River system, any such reductions must be recognized at the point of diversion and shepherded to the intended place of storage.
It is obvious that any long-term agreement for future Colorado River operations among the Basin States should be evaluated based on its immediate ability to reverse the storage declines experienced in recent years and anticipated in the future under similar hydrology. An agreement that does not reliably balance supply with uses and losses is not sustainable. Similarly, any operational alternative proffered by the Department of the Interior must achieve the same objectives. When our reservoir storage is as low as it is now, we have very little buffer to rely onโwe simply cannot use more water than nature provides.
The focus within the Basin and among its principal water users and state negotiators has been on the formulation of the Post-2026 guidelines for operation of the river. But action is necessary now to avoid creating conditions that will doom the next set of operating principles by initiating their implementation when the Basin is in full crisis mode. No governmental administration, state or federal, wants to see the Colorado River system fail on its watch. Negotiators have worked tirelessly to reach agreement, yet have come up short. The hour is late. The Secretary must take decisive action.
Photo Credit: John Weishei via the Colorado River Research Group
Footnotes
1ย Director, Center for Colorado River Studies, Utah State University, former Chief, Grand Canyon Monitoring and Research Center.
2ย Senior Fellow, Getches-Wilkinson Center, University of Colorado Law School, former US Commissioner, Upper Colorado River Commission, former Assistant Secretary for Water and Science, US Dept. of the Interior.
3ย Writer in Residence, Utton Transboundary Resources Center, University of New Mexico.
4ย Retired General Manager, Colorado River Water Conservation District.
5ย Kyl Center for Water Policy, Arizona State University, former Director, Phoenix Water Services.
6ย Staff Attorney, Utton Transboundary Resources Center, University of New Mexico.
7ย Between 9 October and 8 November, five reservoirs in the San Juan River basin gained 204,000 af in total storage, especially in Navajo and Vallecito Reservoirs. Between 9 October and 20 October, Lake Powell gained 105,000 af in active storage, and the total contents of Lake Powell and Lake Mead increased by 108,000 af between September 25 and October 27.
8ย Schmidt, J.C., Yackulic, C.B., and Kuhn, E. 2023. The Colorado River water crisis: its origin and the future. WIREs Water 2023;e1672.
9ย Total active storage in the Basinโs 46 reservoirs was at its maximum on 24 August 1999.
10ย Total Basin consumptive uses and losses, including deliveries to Mexico, averaged 14.2 maf/yr between 1990 and 1999.
11ย Average natural flow of the Colorado River at Lees Ferry, estimated by Reclamation, was 9.5 (Water Year, WY) and 9.6 (Calendar Year, CY) maf/ yr between 2000 and 2004. Average natural flow for the preceding ten years (1990-1999) was 15.0 maf/yr (WY, CY). Average natural flow for the entire 21st century between 2000 and 2025 was 12.3 maf/yr (WY, CY).
12ย Total active storage of the Basinโs reservoirs was 32.0 maf on 19 October 2004.
13ย Total active storage in Lake Powell and Lake Mead was 23.0 maf on 1 January 2005 and was 24.2 maf on 28 July 2019, a 5% increase.
14ย Average natural flow at Lees Ferry averaged 9.0 (WY) and 9.2 (CY) maf/yr between 2020 and 2022.
15ย Total active storage in Lake Powell and Lake Mead was 12.7 maf on 14 March 2023, 48% less than it had been on 28 July 2019.
16ย Total active storage in Lake Powell and Lake Mead was 47.7 maf on 19 September 1999.
17ย Reclamation estimates that natural flow at Lees Ferry was 8.5 (WY, CY) maf in 2025.
18ย Bureau of Reclamation, Establishment of Interim Operating Guidance for Glen Canyon Dam during Low Reservoir Levels at Lake Powell (2024).18
19 Bureau of Reclamation, Supplement to 2007 Colorado River Interim Guidelines for Lower Basin Shortages and the Coordinated Operations of Lake Powell and Lake Mead, Record of Decision (2024) (SEIS ROD).
20ย Id.
21ย U.S. Department of the Interior, Record of Decision for the Glen Canyon Dam Long-Term Experimental and Management Plan, Final Environmental Impact Statement, December 2016.
22ย Salter, G. and 7 co-authors, 2025, Reservoir operational strategies for sustainable sand management in the Colorado River. Water Resources Research 61, e2024WR038315.
23ย Ploussard, Q., Paviฤeviฤ, M., and Yu, A. 2025. Financial analysis of the smallmouth bass flows implemented at the Glen Canyon Dam during Water Year 2024. Argonne National Laboratory report ANL 25/44, 17 pp.
24ย C. Ellsworth, Western Area Power Administration, pers. commun.
25ย Eppenhimer, D. E., Yackulic, C. B., Bruckerhoff, L. A., Wang, J., Young, K. L., Bestgen, K. R., Mihalevich, B. A., and Schmidt, J. C. 2025. Declining reservoir elevations following a two-decade drought increase water temperatures and non-native fish passage facilitating a downstream invasion. Canadian Journal of Fisheries and Aquatic Sciences 82:1-19.
26ย During the 21st century, natural flow at Lees Ferry was lower than this amount in 2002, 2012, 2018, and 2021, meaning that this is not a worst case scenario.
27ย In 2024, consumptive uses and losses in the Upper and Lower Basins totaled 11.4 maf.
28ย October 2025 24-Month Study Minimum Probable Forecast. For a discussion of why the Minimum Probable forecast has become a more reliable indicator of the future than the Most Probable 24-Month Study, seeย Awaiting the Colorado River 24-Month Study, Aug. 14, 2025.
Map of the Colorado River drainage basin, created using USGS data. By Shannon1 Creative Commons Attribution-Share Alike 4.0
Anne Castle, Jeff Kightlinger, Jim Lochhead at the 2025 CRWUA Conference. Photo credit: Water Mark (@OtayMark)
Click the link to read the article on the Aspen Daily News website (Austin Corona). Here’s an excerpt:
December 17, 2025
Federal officials have released a โsoberingโ forecast of 2026 water levels in the Colorado River, with expected flows plummeting from previous predictions. Precipitation later in the winter could turn those dire forecasts around, officials say, but the current outlook is grim for a river already flirting with crisis. Officials published the new forecast on Monday, only a day before negotiators and stakeholders from the riverโs basin states gathered in Las Vegas for a three-day conference. The federal government has given states until February to agree on a longer-term strategy for managing low river flows. The Colorado Riverโs flow in 2026 (specifically, the unregulated inflow to Lake Powell) could be 27% lower than normal, according to the most probable scenario in the December forecast, with worst-case scenarios predicting even lower flows. The projection has worsened estimates released in November (16% lower than normal in most probable scenarios).
โWe all know Mother Nature is a trickster and can often confound our expectations. We certainly hope she intends to do that this year,โ said Wayne Pullan, the Bureau of Reclamationโs regional director for the Upper Colorado River Basin, on Tuesday. โBut Decemberโs outlook is troubling.โ
The bureau, which manages federal dams, will delay water releases at Lake Powell to conserve supplies in the reservoir during the dry winter months in 2026, Pullan said. Even with those efforts, however, the lakeโs water levels could fall to critical levels in 2027 as another disappointing year hits the basin. A bad water year in 2026 would compound already poor conditions from 2025, when river flows have been less than half of normal. The new forecast increases the possibility that water levels in Lake Powell could drop below the intakes for hydropower turbines and that releases from the lake could fall below the annual average required to meet the requirements of the 1922 Colorado River Compact, which governs water allocation between the seven states that use the river. Without above-average flows in future years to bring averages back up, or an interstate deal on how to manage drought, those low releases could set the stage for a legal battle on the river.
The back of Glen Canyon Dam circa 1964, not long after the reservoir had begun filling up. Here the water level is above dead pool, meaning water can be released via the river outlets, but it is below minimum power pool, so water cannot yet enter the penstocks to generate electricity. Bureau of Reclamation photo. Annotations: Jonathan P. Thompson
The House passes a bill to changeย environmental reviewsย for infrastructure permitting.
USGS study finds lower water levels in Coloradoโs Blue Mesa reservoir the cause of increasedย toxic algal blooms.
And lastly, a draft EIS for post-2026 Colorado River reservoir operations, when current rules expire, will be published in the coming weeks.
โLet me be clear, cooperation is better than litigation. Litigation consumes time, resources, and relationships. It also increases uncertainty and delays progress. The only certainty around litigation in the Colorado River basin is a bunch of water lawyers are going to be able to put their children and grandchildren through graduate school. There are much better ways to spend several hundred million dollars.โ โ Scott Cameron, acting commissioner of the Bureau of Reclamation, speaking at the Colorado River Water Users Association conference on December 17, 2025. Cameron encouraged the states to reach an agreement on water cuts and reservoir operating rules instead of suing each other.
By the Numbers
February 14: New Interior Department deadline for the seven Colorado River states to reach an agreement on water cuts and reservoir operations. If the states fail at that, Interior could assert its own authority. There could also be lawsuits. A short-term agreement might be necessary.
The deadline, according to Interiorโs Andrea Travnicek, is for several reasons. It gives states time to pass legislation, if necessary. It provides time for consultation with Mexico and the basinโs tribes. And it allows for reservoir operating decisions in 2027 to be set this fall.
โTime is of the essence, and it is time to be able to adjust those stakes, to arrange so compromises can be made,โ Travnicek said.
News Briefs
Line 5 Oil Pipeline Court Case A U.S. district judge ruled that the federal government, not the state of Michigan, has authority over the contentious Line 5 oil pipeline that crosses the Great Lakes at the Straits of Mackinac.
Michiganโs top officials have attempted to shut down Enbridge Energyโs Line 5 since 2020 when Gov. Gretchen Witmer revoked the companyโs easement.
In his ruling, Judge Robert Jonker determined that the federal Pipeline Safety Act gives the U.S. government the sole authority over Line 5โs continued operation, the Associated Press reports.
Tijuana River Sewage Pollution Cleanup U.S. and Mexican representatives signed an agreement that will facilitate the cleanup of chronic sewage pollution in the Tijuana River, a shared waterway.
Line 5 Oil Pipeline Court Case A U.S. district judge ruled that the federal government, not the state of Michigan, has authority over the contentious Line 5 oil pipeline that crosses the Great Lakes at the Straits of Mackinac.
Michiganโs top officials have attempted to shut down Enbridge Energyโs Line 5 since 2020 when Gov. Gretchen Witmer revoked the companyโs easement.
In his ruling, Judge Robert Jonker determined that the federal Pipeline Safety Act gives the U.S. government the sole authority over Line 5โs continued operation, the Associated Press reports.
Tijuana River Sewage Pollution Cleanup U.S. and Mexican representatives signed an agreement that will facilitate the cleanup of chronic sewage pollution in the Tijuana River, a shared waterway.
Called Minute 333, the agreement outlines actions and sets timelines. A joint work group will assess project engineering and feasibility studies. Mexico will build a wastewater treatment plant by December 2028 and a sediment control basin by winter 2026-27. The agreement also addresses monitoring, planning, and data sharing.
Permitting and Land Use Bills House Republicans used the week before the holiday break to pass a bill that changes infrastructure permitting processes.
The SPEED Act, which passed with support from 11 Democrats, changes the National Environmental Policy Act and the environmental reviews it requires for major federal projects. It restricts reviews to immediate project impacts, sets timelines, and limits lawsuits.
โOn net, these reforms are likely to make it easier to build energy infrastructure in the United States,โ asserts the Bipartisan Policy Center.
Border Wall Kristi Noem, the secretary of the Department of Homeland Security, is waiving environmental laws in order to speed the construction of a border wall in parts of New Mexico near El Paso, Texas.
The affected laws include the Clean Water Act, National Environmental Policy Act, Safe Drinking Water Act, Migratory Bird Conservation Act, and others.
Studies and Reports
Mississippi River Recap The U.S. Army Corps of Engineers published a December state of the Mississippi River report, noting how drought conditions this year have influenced operations on the countryโs largest river system.
The Corps authorized construction of an underwater dam that was completed in October in order to impede the upstream movement of salty water from the Gulf of Mexico.
Harmful Algal Blooms in Colorado Reservoir Blue Mesa is the largest reservoir in Colorado and is part of the Colorado River basin water storage system.
The U.S. Geological Survey investigated why Blue Mesa has been experiencing toxic algal blooms in recent years. Its report concluded that warmer water temperatures enabled by lower water levels are the likely cause.
The affected laws include the Clean Water Act, National Environmental Policy Act, Safe Drinking Water Act, Migratory Bird Conservation Act, and others.
Studies and Reports
Mississippi River Recap The U.S. Army Corps of Engineers published a December state of the Mississippi River report, noting how drought conditions this year have influenced operations on the countryโs largest river system.
The Corps authorized construction of an underwater dam that was completed in October in order to impede the upstream movement of salty water from the Gulf of Mexico.
Harmful Algal Blooms in Colorado Reservoir Blue Mesa is the largest reservoir in Colorado and is part of the Colorado River basin water storage system.
The U.S. Geological Survey investigated why Blue Mesa has been experiencing toxic algal blooms in recent years. Its report concluded that warmer water temperatures enabled by lower water levels are the likely cause.
Reducing nutrient inflows is unlikely to help, the researchers said. There are naturally occurring phosphorus inputs and the algae can fix nitrogen from the air.
The best solution might be keeping the reservoir high enough, the report says. That will not be easy in a drying and warming region with competing water demands.
On the Radar
Colorado River Draft EIS Coming Soon In the coming weeks โ in early January if not by the end of the year โ the Bureau of Reclamation will publish a draft environmental impact statement for changes to how the big Colorado River reservoirs will be managed.
Reclamation began its environmental review about two and a half years ago. The agency had hoped to slot a seven-state consensus agreement into the document. But since there is no agreement, the document will instead describe a โbroad rangeโ of options, said Carly Jerla of Reclamation, who spoke at the Colorado River Water Users Association conference.
The draft will not select a preferred option, Jerla said. Instead that will come in the final version.
โWeโve set up a draft EIS that reflects a range of carefully crafted alternatives to enable the further innovation and the ability of the basin to come to a consensus agreement to be able to adopt in time for the 2027 operations,โ Jerla said.
Federal Water Tap is a weekly digest spotting trends in U.S. government water policy. To get more water news, follow Circle of Blue on Twitter and sign up for our newsletter.
The Colorado River Basin spans seven U.S. states and part of Mexico. Lake Powell, upstream from the Grand Canyon, and Lake Mead, near Las Vegas, are the two principal reservoirs in the Colorado River water-supply system. (Bureau of Reclamation)
The seven states that rely on theย Colorado Riverย to supply farms and cities across the U.S. West appear no closer to reaching a consensus on a long-term plan for sharing the dwindling resource. The riverโs future was the center of discussions this week at the annual Colorado River Water Users Association conference in Las Vegas, where water leaders from California, Nevada,ย Arizona, Colorado, New Mexico, Utah and Wyoming gathered alongside federal and tribal officials. It comes after the states blew past a November deadline for a new plan to deal with drought and water shortages after 2026, when current guidelines expire. Theย U.S. Bureau of Reclamationย has set a new deadline of Feb. 14.ย Nevadaโs lead negotiator said it is unlikely the states will reach agreement that quickly.ย
โAs we sit here mid-December with a looming February deadline, I donโt see any clear path to a long-term deal, but I do see a path to the possibility of a shorter-term deal to keep us out of court,โ John Entsminger of the Southern Nevada Water Authority told The Associated Press.
The Colorado River Basin spans seven U.S. states and part of Mexico. Lake Powell, upstream from the Grand Canyon, and Lake Mead, near Las Vegas, are the two principal reservoirs in the Colorado River water-supply system. (Bureau of Reclamation)
The federal government continues to refrain from coming up with its own solution โ preferring the seven basin states reach consensus themselves. If they donโt, a federally imposed plan could leave parties unhappy and result in costly, lengthy litigation. Not only is this water fight between the upper and lower basins, individual municipalities, tribal nations and water agencies have their own stakes in this battle. California, which has the largest share of Colorado River water, has over 200 water agencies alone, each with their own customers.
โItโs a rabbit hole you can dive down in, and it is incredibly complex,โ said Noah Garrison, a water researcher at the University of California, Los Angeles.
Lower Basin states pitched a reduction of 1.5 million acre-feet per year to cover a structural deficit that occurs when water evaporates or is absorbed into the ground as it flows downstream. An acre-foot is enough water to supply two to three households a year. But they want to see a similar contribution from the Upper Basin. The Upper Basin states, however, donโt think they should have to make additional cuts because they already donโt use their full share of the water and are legally obligated to send a certain amount of water downstream.
โOur water users feel that pain,โ said Estevan Lรณpez, New Mexicoโs representative for the Upper Colorado River Commission.
Udall/Overpeck 4-panel Figure Colorado River temperature/precipitation/natural flows with trend. Lake Mead and Lake Powell storage. Updated through Water Year 2025. Note the tiny points on the annual data so that you can flyspeck the individual years. Credit: Brad Udall