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Announcement

Deciphering the Future of DeSalination at Oct. 29 Water Summit

What role will desalination play in the arid West? That topic is one of many engaging conversations that will be explored at our Oct. 29 Water Summit revolving around this year’s theme, Stewarding a New Era in Western Water.

Led by Central Arizona Project’s General Manager Brenda Burman, the panel will discuss all topics worth their salt - from emerging desalination technologies to the latest developments in innovative desalination programs to the regulatory challenges and opportunities that face the region.

The panel of accomplished speakers will provide deep insight on desalination’s implications for water management in the West.

The Water Summit is the Foundation’s premier event of the year and returns to Sacramento on Oct. 29 with leading policymakers and experts addressing critical water issues in California and across the West. Capacity is limited and registration closes soon, so grab your ticket here while they’re still available!

Announcement

Colorado River Water Leaders Release Recommendations for Assigned Water Programs

Our 2026 Colorado River Water Leaders cohort completed its seven-month program recently with policy recommendations to strengthen ”assigned water” programs across the Colorado River Basin.

“Assigned water” has become a key tool for conserving Colorado River water and helping to stabilize Lake Mead to prevent shortages. Originally developed as “Intentionally Created Surplus” within the 2007 Interim Guidelines, it gives users the ability to store conserved water earmarked for their own future use.

The cohort was tasked with assessing existing assigned water programs and identifying opportunities across the Colorado River Basin. Following seven months of learning, collaboration and discussion with leading Colorado River experts who served as mentors, the cohort developed recommendations focused on:

  • Greater transparency in water accounting
  • Stronger relationships and communication among interested parties
  • Enhanced monitoring and data collection

Read the full report.

Water News You Need to Know

Aquafornia news KJZZ (Phoenix)

Monday Top of the Scroll: Arizona moves to join Colorado River lawsuit alongside Nevada

Arizona has filed to join a lawsuit against the federal government over its new plan for managing the Colorado River. The federal plan would cut Colorado River supplies for Arizona, California and Nevada by about 20% through 2028, and could cut them by about 40% after that. The lawsuit, originally filed by Nevada in August, argues that the plan is too harmful to water users in those states. Arizona would take the largest cuts under the new federal plan, and state officials have openly criticized it. … The lawsuit is not the so-called “nuclear option” that could bring Colorado River matters before the Supreme Court. That would likely require one state to sue another. Arizona has laid out its case to sue if it determines that upstream states are not sending a legally-required amount of water downstream, but has not yet done so.

Other Colorado River management news:

Aquafornia news State Water Resources Control Board

News release: State Water Board releases revised final Bay-Delta Plan

Following a years-long process that included multiple workshops, hearings and extensive public input, the State Water Resources Control Board today released final proposed amendments to the San Francisco Bay/Sacramento-San Joaquin Delta Watershed (Bay-Delta Plan) before considering the plan for adoption at the end of the month. The proposed amendments focus on the Sacramento River watershed, Delta eastside tributaries (including the Calaveras, Cosumnes, and Mokelumne Rivers), and Delta (referred to as the Sacramento/Delta). Today’s draft includes clarifications and minor revisions to the Aug. 18 version that were made based on written comments the board received during its final written comment period, which concluded Sept. 18. Oral comments will still be heard before the board votes whether to adopt the plan at its Oct. 28-29 meeting.

Aquafornia news The San Diego Union-Tribune

San Diego County taps former diplomat as pollution crisis chief amid Tijuana River sewage crisis

San Diego County on Monday will introduce a former U.S. diplomat as its first Pollution Crisis Chief, tapping Bridget Premont to lead its response to the Tijuana River sewage and pollution crisis as a new study estimates the crisis could cost the region $7.9 billion over the next two decades if it is not fixed. Premont will be introduced at a 1 p.m. news conference at the San Diego County Administration Center, according to the county. … According to the county, Premont will coordinate with federal, state and local agencies to prioritize planning for local and cross-border infrastructure upgrades. She will also pursue federal and state funding, coordinate real-time emergency response when sewage discharges spike and chair a Sewage Crisis Interdepartmental Task Force.

Other Tijuana River news:

Aquafornia news San Francisco Chronicle

Will El Niño deliver a big Sierra snow season? These are the detailed projections

A historically strong El Niño is overwhelmingly predicted to bring a wet winter to California. But new data suggests the Sierra Nevada snow outlook is more complicated, and not a guaranteed bonanza. A Chronicle analysis of three major seasonal forecasting systems points to about 17% less snowfall than normal near Tahoe and Donner Summit in November and December, followed by roughly 28% more than normal from January through March. The potential late season boost is even more pronounced in the Central Sierra, near Yosemite, where forecast models suggest snowfall levels nearly 40% above normal from January to March. 

Other El Niño news:

Online Water Encyclopedia

Wetlands

Sacramento National Wildlife RefugeWetlands are among the world’s most important and hardest-working ecosystems, rivaling rainforests and coral reefs in productivity. 

They produce high oxygen levels, filter water pollutants, sequester carbon, reduce flooding and erosion and recharge groundwater.

Bay-Delta Tour participants viewing the Bay Model

Bay Model

Operated by the U.S. Army Corps of Engineers, the Bay Model is a giant hydraulic replica of San Francisco Bay and the Sacramento-San Joaquin Delta. It is housed in a converted World II-era warehouse in Sausalito near San Francisco.

Hundreds of gallons of water are pumped through the three-dimensional, 1.5-acre model to simulate a tidal ebb and flow lasting 14 minutes.

Aquapedia background Colorado River Basin Map

Salton Sea

As part of the historic Colorado River Delta, the Salton Sea regularly filled and dried for thousands of years due to its elevation of 237 feet below sea level.

The most recent version of the Salton Sea was formed in 1905 when the Colorado River broke through a series of dikes and flooded the seabed for two years, creating California’s largest inland body of water. The Salton Sea, which is saltier than the Pacific Ocean, includes 130 miles of shoreline and is larger than Lake Tahoe. 

Lake Oroville shows the effects of drought in 2014.

Drought

Drought — an extended period of limited or no precipitation — is a fact of life in California and the West, with water resources following boom-and-bust patterns. No portion of the West has been immune to drought during the last century and it occurs with much greater frequency in the West than in any other region of the country.