Southern Nevada Water Experts Say Costly Tools Exist to Ease the Lake Mead Crisis as Colorado River Cuts Loom

What happened

Southern Nevada water experts told Rep. Dina Titus that tools exist to address the valley's water crisis, though many of them are expensive, the Las Vegas Review-Journal reported. The comments came at a Monday roundtable Titus led at the Las Vegas Valley Water District, with Lake Mead setting record lows and Colorado River cuts looming.

Titus, a Las Vegas Democrat, said she has watched talk about water shift from abundance to scarcity over her decades in politics. The panel included officials from the Southern Nevada Water Authority and the Colorado River Commission of Nevada, according to the Review-Journal.

Growth and conservation questions

Answering residents' concerns

Titus said some constituents tell her that conservation rules simply move water around so new development can be built. "How do you answer to that?" she asked, according to the Review-Journal.

Colby Pellegrino, deputy general manager of resources at the Southern Nevada Water Authority, said the answer is complicated and asked whether residents had moved here before 2002. She said that was the year the region got serious about conservation, allowing water use to fall sharply while the valley added hundreds of thousands of residents. Each year, the authority projects the region's water security over the next five decades using a liberal estimate for growth, and Pellegrino said efficient water use is what allows the area to grow.

Trees and turf

Pellegrino said data shows much of the valley's tree loss is caused by rising temperatures, not grass removal. The Review-Journal noted that this argument has drawn debate among local arborists, as homeowners sue over mandatory turf conversions required under a 2021 state law.

Where federal money could go

Titus is one of 12 Western lawmakers urging Congress to act quickly to match a $4 billion drought mitigation investment made under the Biden administration. Business groups from all seven Colorado River states, including three from Southern Nevada, have asked for at least $2 billion for water security, the Review-Journal reported.

Conservation and recycling

Pellegrino said new funding would strengthen existing programs, including replacing water-wasting cooling systems, turf conversion rebates and a full audit of irrigation systems across the valley. She also pointed to water recycling, such as the multi-million-dollar effort to bring Boulder City into the regional wastewater system, which is still not fully funded.

Desalination and lasting solutions

Desalination remains a focus despite billion-dollar price tags and other obstacles. The water authority is still in talks to benefit, along with Arizona, from a water transfer tied to a plant in Carlsbad, California. Pellegrino said she does not want money spent on short-term fixes like paying Imperial Valley farmers to fallow fields. "It would be really good to see it go to durable solutions and not temporary fallowing," she said.

Lake Mead and hydropower

Gail Bates, director of hydropower at the Colorado River Commission of Nevada, said Lake Mead is a little over two feet in elevation from the point where only four of 17 dam turbines could function. She said big cities like Las Vegas have diverse power sources, but rural utilities in California, Nevada and Arizona would face large gaps in electric generation.

Congress released funding for at least three more turbines that can run at lower lake levels, Bates said, but they will not be operating until 2029. "We're weathering the storm in terms of hydropower generation output," she said, according to the Review-Journal.

Legal and political backdrop

The roundtable came days after Arizona moved to intervene as an interested party in Nevada's lawsuit against the Trump administration over its Colorado River management plan. The Review-Journal reported that the federal government has asserted legal authority to cut Nevada's allocation by up to 71 percent over the next 10 years. For background on how earlier reductions affect the valley, see our explainer on Nevada's Colorado River cut.

Titus is running for an eighth term in Congress and faces Republican state Sen. Carrie Buck. More coverage of local races is on our elections page.

What to watch next

• Nevada's lawsuit against the Trump administration over its Colorado River plan, now with Arizona seeking to intervene.
• Whether Congress acts on requests from Western lawmakers and business groups for new drought and water security funding.
• Funding for the effort to bring Boulder City into the regional wastewater system, which is not yet fully funded.
• At least three new low-level turbines at Lake Mead, which Bates said will not be operating until 2029.