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Water news you need to know

A collection of top water news from around California and the West compiled each weekday. Send any comments or article submissions to Foundation News & Publications Director Vik Jolly

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Aquafornia news Reuters

Drought depletes Turkey’s Tekirdag reservoirs, forcing emergency water curbs

A drought in Turkey’s northwestern province of Tekirdag has left the area’s main dams without potable water, straining infrastructure and leaving some homes without water for weeks, due to a sharp drop in precipitation in the country this year. Authorities say drought is a critical issue, with several provinces warning of limited fresh water supply this summer. Various areas in Izmir, Turkey’s third-most populous province, have experienced frequent water cuts this month, while the municipality in the western province of Usak was told over the weekend it would have access to water just six hours a day, with the main water reservoir depleted.

Other international drought and water news:

Aquafornia news CalMatters

Monday Top of the Scroll: ‘Beyond awful’ Colorado River forecasts put water talks under pressure

After one of the Colorado River’s driest years in decades, Lake Mead and Lake Powell — the largest reservoirs in the country — could see alarming declines in the coming years, the U.S. Bureau of Reclamation announced today. Federal officials again called for Arizona and Nevada to cut back their supplies from the overtapped river — though California, with its senior claims to the river’s water, will be spared. While expected, today’s two-year projection ratchets up tension among seven states in the Colorado River basin, which have struggled to agree on the river’s management after 2026, when current guidelines expire. 

Other Reclamation announcement news:

Aquafornia news The Fresno Bee

Central Valley groundwater pumping, land-sinking stressing Aqueduct. Is there a fix?

Years of collapsing areas of land in the San Joaquin Valley — caused primarily by the over-pumping of groundwater for farming — has taken a toll on California’s largest water delivery system that relies on stable land to work well. A state report released this year determined its 2023 annual water delivery capability had fallen 3% compared to original-design deliveries. If no action is taken, it could fall up to 87% by 2043. If that happens, 21 million Californians would feel the impacts, according to the California Department of Water Resources (DWR).

Other groundwater news:

Aquafornia news The Record-Courier (Minden, Nev.)

Conservancy acquires first Walker River rights in California

The Walker Basin Conservancy has acquired 1,200 acre feet of decreed storage water from Poore Lake, Calif., in the headwaters of the Walker River watershed. This transaction marks the first water acquisition for environmental benefit of the Walker River and Walker Lake historically diverted in California. … Adaptive management will keep land in Antelope Valley in agricultural production and increase the flows of the West Walker River in California and on to Walker Lake. This water right is stored in Poore Lake, a reservoir in Mono County that feeds Poore Creek and the Pickel Meadow Wildlife Area before joining the West Walker River. Poore Creek and the downstream habitats it supports have substantial conservation value and will benefit from enhanced creek flows and riparian health.

Other conservation news:

Aquafornia news KSL (Salt Lake City, Utah)

Early winter outlooks leave Great Salt Lake advocates on edge

Utah remains on pace to have one of its driest summers in at least the past 130 years, and long-range outlooks aren’t looking all too promising either. That has Great Salt Lake advocates concerned as the lake, fueled by the snowpack runoff it does receive, drops back down to troubling levels. … The ski and snow sports forecasting site OpenSnow lists most of Utah as having stronger odds for below-normal precipitation in its preliminary winter preview released this week. … That would be bad news because snowpack accounts for about 95% of the state’s water supply, and the Great Salt Lake only refills when water within its basin isn’t consumed and the state is already dealing with increasing drought.

Other drought impact news around the West: 

Aquafornia news San Francisco Chronicle

Marin wants to expand its second-biggest reservoir. The nearby town isn’t happy

… A plan by the Marin Municipal Water District to expand the [Nicasio] reservoir, which accounts for more than a quarter of the district’s storage capacity, would inundate more land. Water in the town’s two creeks could back up during winter at the enlarged reservoir and cause more flooding in at least five people’s properties. … The proposal involves installing a 280-foot-long, 4.4-foot-high inflatable rubber gate across the spillway crest of Seeger Dam, which created the Nicasio Reservoir in 1960. That would increase the reservoir’s capacity by about 3,700 acre-feet, or 16.5%. The gate could then be raised to capture more rainfall. 

Other reservoir news:

Aquafornia news Arizona Daily Star (Tucson)

Tucson City Council expected to pass law Tuesday regulating big water users

The Tucson City Council is primed to rush through an ordinance that would impose conservation rules on large water users to protect the city’s water supply from being guzzled by data centers and the like. … The council is expected to vote during Tuesday’s regular night session on a proposal to require all new businesses using at least 7.48 million gallons a month to submit a water conservation plan to the city. The plan would show how the business would reduce its water use, water losses and waste, and improve the efficiency of its water use. The ordinance would also require new, large water users to use specified percentages of reclaimed water, often at least 30% depending on how close they are to reclaimed water delivery lines.

Related article:

Aquafornia news KQED (San Francisco)

As flood risk grows, Suisun City weighs annexing California Forever land

… Suisun City, a working-class community on the edge of San Francisco Bay, faces a slow-moving crisis: rising seas could swallow parts of the town within decades. It also faces an imminent budget crisis threatening insolvency. Among other solutions, city leaders are eyeing a controversial fix — annexing thousands of inland acres from California Forever, a tech billionaire-backed company — a move that could raise tax revenue and secure higher ground, but risks fierce fights over growth, climate adaptation and the city’s future.

Other sea level rise news:

Aquafornia news Santa Monica Daily Press (Calif.)

Opinion: Native American rights to Colorado River water

… [M]ore than a century ago, states recognized that Native Americans had rights to Colorado River water and, even earlier in 1908, the U.S. Supreme Court said in Winters v. U.S., that when we dedicated land to reservations it included enough water to make them habitable. … All that history is becoming more important because we face a deadline. Political procrastination over decades has pushed nearly every aspect of Colorado River allocation into a series of 2026 federal deadlines. … If the states and other stakeholders, like the Indian Tribes, cannot agree, then the Trump Administration will likely decide for them. … And, remember, the Indian Tribes are still getting only about a third of their water.
–Written by Ken Ransford, member of the Colorado Basin Roundtable.

Other Colorado River Basin opinions:

Aquafornia news Los Angeles Times

Salton Sea not to blame for Coachella, Imperial air pollution, study says

For years, millions of dollars have poured into controlling dust that wafts off the exposed lake shoreline of the Salton Sea, hoping to solve a serious air pollution problem in the Coachella and Imperial valleys. But a new report finds that the dusty shoreline is only responsible for a small percentage of the pollution. … Released Thursday, the report draws on data from local, state and federal agencies and finds that dust from the expanding dry shore of the Salton Sea accounts for less than 1% of total small particle pollution in the region.

Related article:

Aquafornia news CBS8 (San Diego)

Students uncover pollution in San Diego Bay waters

What appears to be pristine water in San Diego Bay is hiding a disturbing secret beneath the surface. University of San Diego graduate students working with a local company have discovered alarming levels of heavy metals, microplastics and invasive species in Mission Bay and San Diego Bay using innovative cleanup booms made from recycled materials. The partnership, called 24/7 Blue, pairs USD students with San Diego-based Earthwise Sorbents to test sustainable cleanup technology that could serve as a model for ports and marinas nationwide. … [E]xpansion plans include South Bay areas plagued by Tijuana sewage pollution.

Other South Bay and San Diego Bay news:

Aquafornia news KLAS/8NewsNow (Las Vegas, Nev.)

Algae blooms reported at Lake Mohave, Eagle Valley Reservoir, northern sites

… HABs [harmful algae blooms] have been reported at Eagle Valley Reservoir in Lincoln County, where a HAB watch is in place. Farther north, a HAB warning began at Lahontan Reservoir in early June. … Lake Mead National Recreation Area officials advise people to keep pets away from the algae, which can look very different in various forms. The danger comes from cyanobacteria, which can release toxins when disturbed. Last year, there was a report of a dog dying on the California side of Lake Tahoe after exposure. Tests after the incident found no cyanobacteria, but officials said toxins could have been there before testing occurred.

Other harmful algae bloom news:

Aquafornia news Action News Now (Chico, Calif.)

California Department of Water Resources alerting boaters of changes to boat ramp hours at Lake Oroville, Thermalito

The California Department of Water Resources has announced changes to boat ramp hours for water recreators at local waterways, effective September 1. Inspection and decontamination services at North Thermalito Forebay will maintain their current schedule, operating daily from 8:30 a.m. to 5:30 p.m. However, other ramp hours will see reductions or changes in the hours they are open. Lake Oroville ramps, including Spillway and Bidwell Canyon, will open at 7:30 a.m. and close at 9 p.m. each day. The hours for Lime Saddle and Loafer Creek ramps will now be from 5 a.m. to 9 p.m.

Other Lake Oroville news:

Aquafornia news The Bakersfield Californian

Rats raid California almond orchards: ‘Never seen anything like this’

… A newsletter this month by the Almond Board of California said the [rat] infestation in parts of the San Joaquin Valley, one of the world’s top agricultural regions, has impacted more than 100,000 acres and caused $109 million to $311 million in losses from damage to equipment and crops over a year. … Well over half a million acres of California farmland were left unplanted in the early 2020s because of a protracted drought and diminishing water supplies, which also meant no pest-control efforts in those fields. The drought finally ended in the winter of 2022-23, the beginning of a three-year spell of at least average rainfall that resulted in more vegetation growth and an abundance of food sources for wildlife.

Aquafornia news San Francisco Chronicle

Friday Top of the Scroll: La Niña is brewing. Here’s what it means for California weather

Forecasters expect La Niña conditions to develop this fall and winter. … La Niña is defined by cooler than average sea surface temperatures in the central and eastern Pacific along the equator. The ocean waters affect atmospheric activity, tilting the odds toward drier than normal conditions in Southern California and wetter than average conditions to the far north, especially in the winter…. During the most recent fall and winter, California precipitation mimicked the expected La Niña pattern. … But during the 2022-23 La Niña winter, Central and Southern California faced a flurry of storms fueled by atmospheric rivers, ribbons of water vapor in the sky. Downpours brought flooding across California and snowstorms produced one of the state’s largest snowpacks on record.

Other ENSO and water forecasting news:

Aquafornia news John Fleck at Inkstain

Blog: Awaiting the Colorado River 24-Month Study

As we await Friday’s (Aug. 15, 2025) release of the Bureau of Reclamation’s Colorado River 24-Month Study, we need to remember a painful lesson of the last five years of crisis management: whatever you see in Reclamation’s report of the “Most Probable” reservoir levels for the next two years, we must prepare for things to be much worse. A year ago, Reclamation’s “Most Probable” forecast told us to expect Lake Powell to hold 10.36 million acre feet of water at the end of July 2025, with a surface elevation 3,593 feet above sea level. Actual storage in Powell at the end of July was 7.46 maf, 2.9 million acre feet less, and the reservoir is 38 feet lower, than the “Most Probable” forecast.

Other Colorado River Basin news:

Aquafornia news Monterey Herald (Calif.)

Regulators side with Cal Am on Monterey Peninsula water supply

State regulators on Thursday ruled unanimously that the Monterey Peninsula will need more water by 2050 than all current available sources can supply, including the new expansion of Pure Water Monterey that will be coming online this year. As a result, commissioners believe that water deficit will need to be filled with California American Water Co.’s desalination project. It was not a surprise for many, since administrative law judges Jack Chang and Robert Haga at the California Public Utilities Commission in May issued a proposed decision that adopted most of Cal Am’s estimates on water supply and demand by the year 2050. 

Related articles:

Aquafornia news CalMatters

Opinion: California Legislature’s final weeks could decide fate of Delta water tunnel

… Despite the Capitol’s fixation on national political maneuvering — tinged by Newsom’s likely bid for the White House — there are pending matters that hit closer to home. None is more important than what’s been kicking around for at least six decades, a project to bolster California’s north-to-south shipments of water by bypassing the Sacramento-San Joaquin Delta. … Northern California legislators opposed to the tunnel persuaded their leaders to stall on using a trailer bill, but Newsom and tunnel advocates, such as the Metropolitan Water District of Southern California, will try again during the session’s final weeks.
–Written by CalMatters columnist Dan Walters.

Other Delta news:

Aquafornia news Imperial Valley Press (El Centro, Calif.)

Researchers launch Salton Sea dust study to uncover health risks

Los Amigos de la Comunidad, Inc. hosted an information session on August 14 on the receding Salton Sea and its potential impact on air quality, bringing together researchers and residents to address concerns about toxic dust. The project, a two-and-a-half-year collaboration between UC San Diego, UC Riverside, and community partners, aims to measure dust coming from Salton Sea’s exposed lake beds, or playa, identify its chemical composition, and assess the resulting health impact. … The project also has a forecasting component, using weather modeling to track where dust travels during wind events.

Related articles:

Aquafornia news KSL (Salt Lake City, Calif.)

World’s largest data center campus could be coming to central Utah

The world’s largest data center campus may be coming to Utah, with a pair of companies planning to construct artificial intelligence-ready hubs in Millard County. The first domino fell when Orem-based Fibernet MercuryDelta LLC in May filed a request to rezone nearly 1,200 acres of property — located southeast of Delta — from agricultural land to heavy industrial land for its potential 20-million-square-foot data center campus called Delta Gigasite. … ”Many operators have designed closed-loop cooling systems that use various fluids instead of water. When powered with natural gas, this system is net water-positive — it can actually generate about 100 acre feet of new water per 100 megawatts annually” … reads a release from Creekstone.