- Nevada hosts summit on drought, climate, and Colorado River future.
- Lake Mead supplies nearly 90% of Las Vegas water but is only 31% full.
- Conservation and infrastructure projects keep Nevada ahead of shortages.
- Leaders press for Hoover Dam upgrades as hydropower faces steep declines.
Monday, September 1, 2025 — With the Colorado River’s future hanging in the balance, Nevada leaders gathered in Las Vegas to outline how the state is navigating climate change, drought, and shrinking water supplies at Lake Mead. The Nevada Current
reports that at the Southern Nevada Water Summit last week, policymakers and water managers highlighted the state’s track record in conservation, its investments in infrastructure, and the urgent need for federal support to protect both water supplies and hydropower from the Hoover Dam. The following report is republished under Creative Commons license CC BY-NC-ND 4.0.
As November deadline nears, Colorado River states ‘nowhere close to an agreement.’
by Jeniffer Solis, Nevada Current
August 29, 2025
Amid tense negotiations over the Colorado River’s future, Nevada leaders came together Thursday to focus on the state’s strategy to meet the climate and drought crisis threatening Lake Mead and the Hoover Dam.
Democratic Rep. Susie Lee, whose district falls within the boundaries of Lake Mead and half of the Hoover Dam, brought together regional water and hydropower leaders to highlight mounting needs the state faces during her third annual Southern Nevada Water Summit at the Springs Preserve.
Before water was piped from the Colorado River to Las Vegas, the burgeoning community relied entirely on groundwater from the Las Vegas Springs located on the site where the Springs Preserve now sits.
That water soon dried up after demand from the growing city depleted the aquifer. Now water managers are working to ensure Lake Mead – which provides nearly 90% of the city’s water – does not meet the same fate.
The summit comes at a critical time as states run against a mid-November deadline to reach a consensus on how the river and its reservoirs should be managed after current guidelines expire at the end of 2026. If states can’t reach a deal ahead of the deadline, the federal government will likely step in and make those decisions for them.
“The reality is it’s a really tough set of negotiations right now, so we’re meeting pretty regularly,” said Southern Nevada Water Authority Deputy General Manager Colby Pellegrino.
“There’s a lot of work that still needs to be done. We are nowhere close to agreement,” Pellegrino said.
Still, it’s an improvement from December when representatives from Lower Basin states — Nevada, Arizona, and California — and Upper Basin states — Colorado, New Mexico, Utah, and Wyoming — left a major water summit in Las Vegas without even speaking to each other.
Upper and Lower Basin states have largely quarreled over which portion of the basin should decrease its water use, and by how much.
States did come closer to a consensus after a breakthrough proposal in July to share the waterway based on the actual flow of the river, as opposed to projected flows and historical agreements. The proposal is still in play, said Pellegrino.
“I personally think it’s really good public policy for us to pursue something like that. It’s very responsive to current conditions. It does a decent job of creating some equity between the Upper Basin and Lower Basin,” Pellegrino said.
“But we’ve got a long way to go to see if we can agree on the details,” she continued.
Water flows in the Colorado River are shrinking due to climate change, and the reality of what that means for states reliant on the river is becoming more stark.
Earlier this month, federal officials announced they would continue water allocation cuts on the Colorado River for the fifth consecutive year following a persistent drought that’s drained Lake Mead.
Lake Mead’s elevation is currently at about 1,054 feet above sea level – 175 feet below what’s considered full. Based on water storage, the reservoir is at 31% of capacity.
Nevada is ahead of the game when it comes to preparing for those reductions, said Pellegrino.
Nevada receives less than 2% of Colorado River water each year, the smallest share of any state in the basin. Those limitations have forced Nevada to become a conservation pioneer.
Southern Nevada hasn’t used its full allocation of Colorado River water for years. Conservation efforts have helped Southern Nevada use 36% less water from Lake Mead than it did two decades ago, according to the Southern Nevada Water Authority (SNWA).
Even under the most severe water shortage, the Southern Nevada Water Authority would be able to access its share of the river thanks to major infrastructure projects, including Intake 3 — the ‘third straw’ — and the Low Lake Level Pumping Station.
“Our intake and our infrastructure allows us to deliver water to this valley even when water cannot be released from Hoover Dam,” Pellegrino said.
Other water infrastructure projects in Nevada have been funded by the Southern Nevada Public Land Management Act, which allocated 10% of revenue derived from land sales to the Southern Nevada Water Authority.
To date, SNPLMA has generated more than $368 million to fund Nevada’s water priorities and infrastructure needs. Pellegrino said SNWA will continue leveraging that funding to support water conservation, infrastructure upgrades, long-term drought planning, and environmental restoration.
Additional sources of federal funding have also been a major contributor to water conservation on the Colorado River, said Lee.
The congresswoman highlighted the Inflation Reduction Act, which included $4 billion in investments for drought mitigation along the Colorado River Basin. She also highlighted the Bipartisan Infrastructure Law which provided $141 million for water conservation projects in Southern Nevada, including funding for the Las Vegas Wash, which carries millions of gallons of treated wastewater to Lake Mead.
That funding allowed California, Arizona and Nevada to collectively reduce water use by at least 3 million acre-feet through the end of 2026, stabilizing Lake Mead for several years.
Another major issue created by lower water levels at Lake Mead is the loss of hydropower productivity. Hoover Dam generates half the power that it did in 2000 due to consistently lower water levels in Lake Mead.
If Lake Mead falls another 20 feet, Hoover Dam’s capacity to generate electricity would be slashed by 70% from its current level.
The break point for hydropower is 1,035 feet. At that level, 12 older turbines at Hoover that are not designed for low reservoir levels would be shut down. Only five newer turbines installed a decade ago would continue to generate power.
There is a way to fix the problem, said the Colorado River Commission of Nevada’s director of hydropower Gail Bates.
Replacing the 12 older turbines would maintain power generation even at low levels, however it would require significant investment.
“We’re really getting to the point where they’re urgently needed. Bad news is the cost. They cost about $8 million each to install. So it’s a very heavy investment,” Bates said.
During the summit, Lee and Sen. Catherine Cortez Masto said they are working together to advance the Help Hoover Dam Act, a bill that would unlock some $50 million in stranded funding for the dam from an orphaned federal account.
The funds had been set aside for pension benefits for federal employees, but advocates for the bill say Congress funds pension benefits through other means and that the funds could be spent on dam upgrades if the Bureau of Reclamation was given the authority to do so.
“The dam is turning 100 years old in 2035 and the Bureau of Reclamation is estimating that it will require about $200 million in upgrades. This is money that’s just sitting there stranded. It would be so good to free that up so we can make those investments,” Cortez Masto said.
Nevada Current is part of States Newsroom, a nonprofit news network supported by grants and a coalition of donors as a 501c(3) public charity. Nevada Current maintains editorial independence. Contact Editor Hugh Jackson for questions: info@nevadacurrent.com.
