California’s climate, characterized by warm, dry summers and mild winters, makes the state’s water supply unpredictable. For instance, runoff and precipitation in California can be quite variable. The northwestern part of the state can receive more than 140 inches per year while the inland deserts bordering Mexico can receive less than 4 inches.
By the Numbers:
Precipitation averages about 193 million acre-feet per year.
In a normal precipitation year, about half of the state’s available surface water – 35 million acre-feet – is collected in local, state and federal reservoirs.
California is home to more than 1,300 reservoirs.
About two-thirds of annual runoff evaporates, percolates into the ground or is absorbed by plants, leaving about 71 million acre-feet in average annual runoff.
The biggest blizzards are over. But as state water officials head into the Sierra Nevada on Thursday for the annual April 1 snowpack reading — the most important of the year for planning summer water supplies — California still has a huge amount of snow covering its highest mountain peaks, an avalanche that has buried the state’s punishing drought.
Among the projects listed by the unions is the $1 billion Huntington Beach Desalination Plant in California. … Also in Southern California, the Cadiz water project aims to tap groundwater from the Mojave Desert to supply roughly 100,000 homes.
As snow continued to fall on the eastern Sierra Nevada on Monday, platoons of earth movers, cranes and utility trucks fanned out across the Owens Valley, scrambling to empty reservoirs and clean out a lattice-work of ditches and pipelines in a frantic effort to protect the key source of Los Angeles’ water.
Farmers in a vast agricultural region of California will receive a significantly greater amount of irrigation water this summer compared to past drought years – but not their full supply, federal officials announced Wednesday.
A state reservoir at the starting point to ship Delta water to 23 million Californians has been damaged by heavy water flows this winter — which may trigger a temporary shutdown of the state’s giant water pumps.
State officials say that it will take 30 to 45 days to repair damage detected this week at a key point in the state’s system for shipping water from the Delta to farms in the San Joaquin Valley and to cities from Silicon Valley to Los Angeles.
State officials said Wednesday that Californians reliant on water pumped out of the Sacramento-San Joaquin Delta won’t face supply shortages, even as crews shut down a massive pumping station that serves much of Southern California for at least a month to make repairs to its intake reservoir.
Plunging the long, metal rod into the snow beneath his feet in the mountain town of Phillips, state snow survey chief Frank Gehrke measured the Sierra Nevada snowpack Wednesday not against California’s recent, historic drought but against its biggest rain years.
Clambering through a snowy meadow with drifts up to the tree branches, California’s water managers measured the state’s vital Sierra Nevada snowpack Thursday at a drought-busting and welcome 173 percent of average.
Snowfall from a series of blizzard-like storms that blanketed the Sierra Nevada last month deposited the equivalent of more than 5.7 trillion gallons of water along the rugged mountain range — enough water to fill California’s largest reservoir more than four times, according to recent analysis.
Northern California is on track to break rainfall records. … But you wouldn’t know the region has experienced an exceptionally wet winter looking at the steep, dry shores ringing the Sacramento region’s largest reservoir, Folsom Lake.
Leaning against a wooden rail, environmental activist Geoffrey McQuilkin took stock of a parched geological wonderland [Mono Lake] that had been altered by a weekend deluge. … Similar scenes were playing out at lakes and reservoirs across Northern California as weeks of heavy rain and snow brought them back to life.
The powerful storms that soaked Northern California over the past week did more than trigger power outages, mudslides and flash floods. … Officially, California’s drought won’t end until Gov. Jerry Brown rescinds or revises the emergency drought declaration he signed in January 2014.
Two weeks before President Barack Obama leaves office, his administration vowed to move full speed ahead on California’s controversial Delta tunnels project, calling it essential for the state’s water supply as well as its environment.
The first manual survey this year of California’s snowpack revealed Tuesday that it holds about half as much water as normal, casting a shadow on the state that’s hoping to dodge a sixth straight year of drought, officials said.
Around the start of each year, California water officials make a big show out of measuring the Sierra Nevada snowpack for reporters. Tuesday’s measurement before a throng of cameras was fairly bleak: Water content in the snowpack stood at just 53 percent of average, about a third as much water as the same time last year at that site.
On Tuesday in Modesto, it was standing-room only at a State Water Resources Control Board hearing for a plan that could cut irrigation water for farmers and drinking water for cities. Many people showed up at the meeting to protest the plan, while others came to show their support.
More than 900 people packed a Modesto hearing on boosting river flows Tuesday, most of them determined to stop the state’s plan. … The round of hearings started Nov. 29 in Sacramento and will finish there Jan. 3.
A critical aspect of California’s drive to create new water storage is in place after the California Water Commission approved regulations governing how those potential storage projects could receive public funding under Prop. 1.
The Dec. 14 decision potentially paves the way for new surface water projects, such as Sites Reservoir, and expansion of Los Vaqueros reservoir in Contra Costa County.
President Barack Obama on Friday quietly signed and bequeathed to President-elect Donald Trump a massive infrastructure bill designed to control floods, fund dams and deliver more water to farmers in California’s Central Valley.
When California water officials assess the drought, the first place they look is the northern Sierra Nevada mountains. Rain and snowmelt from the area feed into a complex system of rivers, canals and reservoirs that send water across the state.
Now, if past weather patterns are fulfilled this year, experts say, Northern California’s winter — and long-term relief from years of drought — could be just around the corner for the state’s most important watershed.
In a preliminary outlook, the state Department of Water Resources said it can count on allocating as little as 20 percent of requested water supplies to start, hinting drought fears are far from over in California.
California’s Department of Water Resources has made its initial projection of how much water public agencies can count on receiving from the canals and pipelines of the State Water Project next year: 20 percent of their full allotments.
The founders of fledgling San Francisco firm Blue Forest Conservation want to use the proceeds of what they call a forest-resilience bond to pay crews to cut down small trees, clear out shrubs and burn off ground cover in overgrown forests.
Fishing and environmental groups will get the first say Tuesday about how much water should run down the Stanislaus, Tuolumne and Merced rivers. The session in Sacramento will be the first of five before the State Water Resources Control Board, which is considering a major boost in the flows.
Thirsty avocado trees in the hills of De Luz are on a literal chopping block. The Rancho California Water District on Monday, Nov. 14, started accepting applications from district growers who want to remove high water use crops, such as avocado trees, for lower use varieties such as wine grapes or citrus trees.
Lake Cachuma, a giant reservoir built to hold Santa Barbara County’s drinking water, has all but vanished in California’s historic drought. It reached an all-time low this summer — 7 percent capacity, which left a thick beige watermark that circles the hills framing the lake like an enormous bathtub ring.
Millions of Bay Area residents could get extra drought insurance against water shortages and quality problems from a proposed $800 million expansion of the Los Vaqueros Reservoir that may have up to 10 water suppliers as partners.
As the state enters its sixth year of drought, Northern California is seeing some significant relief thanks to a series of powerful storms, while Southern California remains mired in record dry conditions.
Last week, folks who are in the inner circle of the plans for Sites Reservoir held a get-together in Maxwell to show off the group’s new office and new logo. Also new is a website, that talks about all things Sites Reservoir — a construction schedule, facts sheets and a list of interested participants (see sidebar).
Manteca-area farmers voted this week to oppose a state proposal to permanently allow more water to remain in the Stanislaus River to protect fish. … The State Water Resources Control Board says river flows would increase from roughly 20 percent to perhaps 40 percent on the Stanislaus, Tuolumne and Merced rivers combined.
California’s drought has brought about a strange partnership that includes corporations like Coca-Cola and environmental groups like the Nature Conservancy. They’re partnering on projects aimed at helping increase water supply in California.
California has been trying to fill its reservoirs for 5 years, and it will get a little help from a storm expected to hit later this week. Right now, Lake Shasta is only at 60% capacity and Lake Oroville is at 44%, with other reservoirs across the state even lower.
Four of the five board members at the Turlock Irrigation District voted Tuesday against the state’s proposed boost in river flows. Meanwhile, the fifth board member was in Sacramento to press the same case.
The board of the Turlock Irrigation District will get its turn Tuesday to denounce the river flow increases proposed by the state. Later in the morning in Sacramento, supporters and opponents of higher flows will speak to the California State Board of Food and Agriculture.
The water that gurgles from a spring on the edge of this Northern California logging town is so pristine that for more than a century it has been piped directly to the wooden homes spread across hills and gullies.
California’s goal of ensuring universal access to safe drinking water, as mandated in the 2012 Human Right to Water Bill, will come a step closer to being met if Gov. Jerry Brown signs a new measure into law that halts the creation of new small, unsustainable – and in many cases dangerous – water districts in the state.
San Francisco faces potentially drastic cutbacks in its water supply, as state regulators proposed leaving more water in three Northern California rivers Thursday to protect wildlife in the Sacramento-San Joaquin River Delta estuary, the linchpin of California’s water supply.
It sounded too good to be true — an official forecast that 2016 [Colorado River] water use in Arizona, California and Nevada will be the lowest since 1992. That forecast from the U.S. Bureau of Reclamation was too good to be true — by the bureau’s own admission.
A prominent Sacramento-area economist says Gov. Jerry Brown’s $15.5 billion plan to overhaul the troubled Sacramento-San Joaquin Delta doesn’t make financial sense, with costs far outweighing the benefits.
Tania Ramirez stepped into her family’s front yard Friday morning, leaned down toward a pipe protruding from the garden, and twisted a spigot. For the first time in three years, water came pouring out.
Recently, Gov. John Hickenlooper cast renewed attention on water supply and growth in the West with a decision in a long-running process to expand a Colorado River diversion. … The Gross reservoir expansion reflects a fundamental tension for the seven states and two countries that share the Colorado River: how many more diversions can the stressed basin tolerate?
State and federal reservoir levels have been dropping at dramatically different rates for the last couple of months, for reasons that figure into last week’s discussions about the twin tunnels under the Sacramento-San Joaquin Delta.
Plans to build the Sites Reservoir have been in the works since 1957, and if it is eventually approved, work on the project probably would not be complete for another 10 to 12 years, according to Jim Watson, the Sites Reservoir Project general manager.
Activists arguing that Nestle’s bottling of water from the San Bernardino National Forest is illegal due to a long-expired permit gathered Saturday at Sprouts Farmers Market locations across the U.S., including one in La Quinta, in order to protest the chain’s sale of Nestle Arrowhead Mountain Spring Water.
Whether the temperature management of the runoff of Northern California water reservoirs, including Shasta Dam, results in improved survivability of endangered fish or uncertainty for human water users was debated at a House Natural Resources subcommittee hearing Tuesday.
Backers of a controversial ballot measure intended to shift billions of dollars in state bond money from high speed rail to water storage projects say they will rewrite the stalled initiative in an effort to gain broader support.
Calling all water users: If you would like to buy in on water from a future Sites Reservoir, now is the time. Plans for Sites Reservoir are moving forward, with a deadline of June 2017 to ask the state Water Commission to pay for half of the estimated $4.4 billion construction cost.
Of the roughly 300,000 acres in the city of Los Angeles, more than 2,000 are alleyways that cut through city blocks. And because they’re mostly paved, they do little to capture one of the city’s most prized resources: water.
Within less than a year, as many as 50,000 marijuana growers in California could be required to obtain state permits for the irrigation water they consume. … This new ability to regulate water for marijuana growing is a result of SB 837, a state law signed by Gov. Jerry Brown on June 27.
In a failed effort to protect endangered fish, the federal government decided without proper study to default to restricting the giant pumps at the bottom of the Sacramento-San Joaquin Delta. So argues a lawsuit filed Friday in U.S. District Court in Sacramento by a powerful consortium of water agencies.
California water will retake the Capitol Hill stage in coming days, with compromise nowhere in sight. … Underscoring the many complications entangling California water, the San Luis & Delta-Mendota Water Authority and the Westlands Water District on Friday sued the federal Bureau of Reclamation over measures intended to protect endangered species.
A coalition of local elected officials, water districts, tribal members and the federal government will gather Friday to launch the application process to help build Temperance Flat Dam and Reservoir project.
When a group of water officials from California, Nevada and Arizona get together behind closed doors to talk about potential cuts to California’s share of the precious and dwindling Colorado River, representatives from San Diego County Water Authority are not present.
After weeks of uncertainty and pressure from members of Congress, federal officials on Wednesday announced a plan for managing water releases from California’s largest reservoir this summer in a manner that will not involve cutbacks in farm water deliveries – at least if all goes as hoped.
Under the state’s newly relaxed conservation rules, California’s 400 urban water district were to submit an analysis of their supply conditions and conservation outlook by last Wednesday. The water board won’t publish the responses until next month.
Residents of El Porvenir, threatened with water shutoff in August as their neighbors in Cantua Creek were last year, are getting financial relief from the state. … In April, the farmworker residents of the tiny western Fresno County town rejected a higher water rate over five years that amounted to about $5 a month the first year.
Because Nestle North American Waters did not provide requested information, its permit related to water withdrawals in the San Bernardino National Forest has lapsed, plaintiffs contend in a brief filed Friday in U.S. District Court in Riverside.
Municipal water agencies across California are required to report to state officials by midnight Wednesday on whether they have enough water to withstand three more years of drought. … Officials with the State Water Resources Control Board are calling it a “stress test.”
The state announced plans to spend $10 million to begin connecting unincorporated East Porterville in Tulare County to the water system of neighboring Porterville. … Statewide, officials said roughly 2,000 wells have run dry during California’s most severe drought on record and stretching into its fifth year.
Word of the vanishing Sierra snowpack, which usually helps replenish reservoir levels later in the summer, arrives amid uncertainty over how California’s dams will be managed in coming months to protect endangered fish. It also comes at a critical juncture for urban water officials across the state.
This new Order, approved Tuesday, will encourage more recycled water projects by providing a single permit that can be used across Regional Water Quality Control Board boundaries. It also establishes conditions for recycled water use and gives authority to an administrator to issue recycled water permits to users.
Citing the state’s improved hydrology and impressive regional conservation, officials at Southern California’s massive water wholesaler voted Tuesday to rescind the cuts they imposed on regional water deliveries last year.
No fewer than nine government agencies and nonprofit organizations have had a hand in helping the [East Porterville] community, which drew international media attention for its exceptional suffering in the fourth year of California’s drought.
What if 2017 is a dry year? “There are no predictions yet, but we have to be prepared,” said Jeanine Jones, resources manager for the state Department of Water Resources. Jones and other state and federal water officials outlined the challenges faced in meeting water demands and the limiting factors to delivery, during a Water Education Foundation seminar held in Fresno.
Water is once again flowing into Diamond Valley Lake near Hemet for the first time in three years, which will allow boat launches to resume on Southern California’s largest reservoir in mid-May, just in time for Memorial Day weekend fishing.
For nearly two decades, Los Vaqueros Reservoir — a sprawling lake in eastern Contra Costa County nearly 3 miles long and 170 feet deep — has been a popular spot for boating, fishing, hiking and a key source of water for local residents.
The room contained about 100 people migrating from station to station, looking at poster boards and talking to specialists about fault lines, water drainage and other environmental concerns of Nestlé’s tap into a San Bernardino Mountains creek.
Los Angeles insists that it had the best of intentions as it erected the monument of granite and sculpted earth that is now rising from a dry bed of Owens Lake 200 miles to the north. Department of Water and Power officials saw it as a gesture of reconciliation for taking the region’s water more than a century ago.
It doesn’t seem possible that removing four dams could actually improve water supplies. But that is one potential result of the recently approved deal to remove dams on the Klamath River. The agreement, announced on April 6 by the U.S. Department of Interior, will likely become the largest dam removal project ever undertaken in the United States.
In another sign that the so-called “Miracle March” storms in Northern California helped ease the state’s drought, farms and cities reliant on the State Water Project learned Thursday that they’ll likely get 60 percent of the water deliveries they requested from the state, an increase from a month ago.
For the first time in five years, Northern California’s rivers are roaring and its reservoirs are filled almost to the brim. But you’d hardly know it, based on how quiet it’s been at the two giant pumping stations at the south end of the Sacramento-San Joaquin Delta.
Secret conversations between American diplomats show how a growing water crisis in the Middle East destabilized the region, helping spark civil wars in Syria and Yemen, and how those water shortages are spreading to the United States.
People have long predicted that California could eventually collapse into the ocean following a mega earthquake. Now, an eerily similar true-life scenario is playing out — but it’s thanks to the weather.
The 2016 irrigation season is rolling out on these warm April days with close-to-normal supplies in parts of the Northern San Joaquin Valley. In other parts, the drought of the past few years has not eased much, and farmers face another year of scraping by.
In the latest sign of California’s improving drought picture, federal officials announced Friday that South Bay cities will receive 55 percent of their contracted water amounts this summer — up from 25 percent last year — from the Central Valley Project, California’s largest water delivery system.
We were gliding downhill along a river buried in snow, our skis skimming a thin layer of fresh powder toward the setting sun and a wall of darkening clouds. … In California, snow isn’t just for skiers.
As lingering El Niño rains swell the state’s rivers, Democratic Sen. Dianne Feinstein joined California House Republicans on Thursday to demand that President Obama order more water to be pumped from the Sacramento-San Joaquin River Delta to farms in the San Joaquin Valley.
The Southwest needs a new vision and technologies to shore up its diminishing water supplies instead of relying on old “security blankets” like a drought-busting winter that refills America’s two biggest reservoirs, water experts and users argued Monday. That’s what’s been happening with water use in the Colorado River basin.
A Siskiyou County group wants to put a measure on the November ballot that would require any business that wants to pump groundwater that would be exported from the county — including bottled water — would need an extraction permit.
For almost all of its 240-year history, with only episodic interference from nature (the 1930s Dust Bowl) and one big intervention from man (the clean water campaigns of the 1960s and 1970s), the United States has been a place that largely took its water supply and quality for granted.
The so-called March Miracle has unleashed the largest allocation of water from Northern California in four years, more than doubling the flow of imported water from the State Water Project into Central and Southern California.
President Barack Obama on Monday directed the federal government to come up with a less reactionary and more long-term strategy for dealing with drought. … The White House is hosting a “water summit” on Tuesday, which is World Water Day, to raise awareness of the importance of safe, sufficient and reliable water resources.
The drought is certainly not over, but the federal Bureau of Reclamation was optimistic enough to offer water suppliers in the Valley 30 percent of their contract allocations this year. And several water agency officials believe more could be coming as well.
Deliveries from the State Water Project are now forecast to be 45 percent of what was requested, still less than what’s supplied during most wet years but more than what’s been allocated since the first year of the drought.
The northern Sierra has seen nearly double the average precipitation since the beginning of March. It may seem hard to believe after such a dry February, but some of California’s largest reservoirs have approached flood operations.
With California’s two largest reservoirs hitting historically average levels following a weekend of heavy storms, the state’s chief water regulator is cautiously optimistic that the drought may finally be relaxing its grip.
[Eric] Batman reveled in El Niño’s long-overdue rumbling. His job, as senior civil engineer for the [Los Angeles] county Department of Public Works, is to keep as much rain as possible from escaping to the ocean.
Supporters of a proposed ballot initiative to kill California’s high-speed rail project and use the money to build new reservoirs are racing to gather enough signatures to qualify the measure for the November ballot. But the campaign, which is being bankrolled by San Joaquin Valley farmers, is already drawing fire from fellow farmers and environmentalists, who call it a “Trojan horse.”
California is the first state to have a law declaring the human right to water, and now it also has a resolution from the Water Board prioritizing it. … In Poplar, California, an unincorporated Central Valley town of low-income, largely Hispanic residents, two of three community wells are contaminated with nitrates. The other one is going dry.
Clouds over Los Angeles County were seeded with silver iodide to increase the amount of rainfall during Monday’s storm, marking the first cloud seeding done by the Department of Public Works since 2002.
This weekend’s soaking rains delivered just what drought-weary Northern California needed: billions of gallons of water pouring into the state’s major reservoirs — and more predicted for later this week.
The latest snow survey in the Sierra Nevada showed that an above-average snowpack in January gave way to a dry February, which reduced the statewide snowpack to 83 percent of normal. It was slightly better in the norther Sierra/Trinity area, the drainages that feed lakes Oroville and Shasta, but still below average at 89 percent.
Like a car owner whose transmission unexpectedly breaks down and results in a huge bill, Silicon Valley’s largest water provider will have to spend at least $20 million to drain, test and repair a critical water pipeline that failed last summer and may have more hidden problems.
SACRAMENTO –The statewide snowpack – source of much of the California’s water supply – is only 83 percent of the March 1 average, the result of moderate precipitation since last October and relatively warm temperatures.
After a dismally dry February, drought-weary Californians are hoping a series of storms predicted to roll through in early March blanket the Sierra Nevada with a much-needed additional layer of snow, building up the state’s vital snowpack that all but disappeared last year.
Going into March, there’s a good chance most of California will see above-average precipitation, climate experts said. But judgment day is not until April 1, when officials start calculating just how much snow might be available to supply California’s water demands over the summer and fall.
The state’s powerful agriculture industry and its political allies are gathering signatures for a November ballot initiative that would grab bond money earmarked for California’s bullet train and use it instead for new water projects.
Despite heavy rainfall in January, an above-average snowpack and rising reservoirs in some areas, the U.S. Drought Monitor says more than one above-average winter will be needed to ease all the impacts of long-term drought in California.
Frank Gehrke, chief of the California Cooperative Snow Surveys Program for the California Department of Water Resources, says the snowpack measurement was 130 percent of average at Phillips Station off Highway 50 near Sierra-at-Tahoe Road.
State regulators launched Thursday into a year of pivotal decisions on Gov. Jerry Brown’s quest to build two giant tunnels to ferry water from Northern California for Central and Southern California, a $17-billion project that would be one of the largest in decades in the state.
More than five years after the Monterey Peninsula Water Management District was barred from collecting a user fee on California American Water bills to pay for Carmel River mitigation and other work, the California State Supreme Court ruled the state Public Utilities Commission had no authority over the fee.
The Department of Water Resources, mindful of the fruits of the El Niño weather pattern, boosted expected water deliveries to cities and farms from last month’s scant projection of 10 percent of what was requested to a slightly better 15 percent.
Three of Gov. Jerry Brown’s top water lieutenants came to Silicon Valley on Tuesday to make the case for his $17 billion plan to build two huge tunnels under the Delta to more easily move water from north to south.
The recent onslaught of El Nino storms only slightly increased the levels of California reservoirs that now stand at half of historic depths for this time of year, federal officials said Friday while releasing an initial water outlook for 2016.
After months of warnings by some officials that El Niño and winter rains were far from certain, the bounty of storms plowing through Northern California has opened hope that there could be a huge improvement in the state’s severe drought by spring.
California lake levels are rising as fast as the stock market is falling, with Folsom Lake east of Sacramento rising an astonishing 44 feet in just over a month and Lake Oroville, the second most expansive water storage facility in the state rising another 20 feet.
The rain and snow falling across Northern California in recent days is by no means extraordinary. … But inch by inch, forecasters say, it’s doing the work necessary if California is to reverse years of epic drought.
A break in the California Aqueduct has halted the flow of water in the canal that supplies millions of Southern California residents, but there’s no concern that taps will run dry, officials said Wednesday.
Facing uncertain financing and a ballot measure threatening his $15.5 billion Delta water plan, Gov. Jerry Brown on Thursday called the project a “fundamental necessity” and said he is confident “we’ll get it done.”
What began as an emergency response to the drought has dragged on and on. A year after the first tank was installed, tanks are now the primary source of water for more than 540 households in Tulare County, the epicenter of California’s four-year drought.
After taking the measurement and leaving a path of boot prints in his wake, Frank Gehrke, chief of the California Cooperative Snow Surveys Program, told a group of tightly bundled reporters that the snowpack was “encouraging, but still obviously not where we’d like to be.”
This state, forward-looking on other environmental issues, has been stymied for decades over how to upgrade its plumbing system, an immense but aging network of reservoirs and canals that move water from the mountainous north to the drier south.
The U.S. Forest Service said officials have started assessing the renewal of a 1978 permit that Nestle has long been using to pipe water out of the San Bernardino National Forest to produce Arrowhead brand bottled water.
Poseidon Water’s desalination plant in Carlsbad is poised to begin regular operations within days — decades after water officials first considered harvesting drinking water from the sea and 14 years after they formally took the first steps toward its construction. The opening, to be celebrated with an anticipatory ceremony Monday, will be a milestone for the company, for arid San Diego County and for all of California.
Public water agencies that serve millions of residents in drought-weary California might only receive 10 percent of expected supplies in 2016 – half the amount that flowed to them this year through the state’s massive system of reservoirs and canals, state officials say.