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Usually with warm ARs, you get a dramatic increase in inflow, which can fill even very large reservoirs relatively quickly, like Oroville in 2017. It used to be full (and beyond). Central Valleyfarms have installed enough drip irrigationstrips to reach the moon and back, an improvement that also enables more efficient application of fertilizer and pesticides. Current conditions of LAKE OR RESERVOIR WATER SURFACE ELEVATION ABOVE NAVD 1988, LAKE OR RESERVOIR WATER SURFACE ELEVATION ABOVE NGVD 1929, and RESERVOIR STORAGE are available. If you look at this chart for Hetch Hetchy, you can see that the biggest and steadiest rise is between March and July, https://waterdata.usgs.gov/monitoring-location/11275500/#parameterCode=00054&period=P365D&compare=true. "Some weather monitoring stations in the Feather River drainage received as much as 12 to 19 inches during the period of the storms," the department said. San Francisco will be in great shape going into 2023, said Spreck Rosekrans, executive director of Restore Hetch Hetchy Its unfortunate that too little is being done with these flows to recharge groundwater basins to help cities and farms and even restoring Hetch Hetchy Valley., Kurtis Alexander is a San Francisco Chronicle staff writer. If you are reading this, its probably the winter rainy season in California again, and time to check on the status of the water in the California reservoirs. Lake Oroville. This local water is captured in reservoirs located in San Mateo and Alameda counties. The Hetch Hetchy Reservoir in Yosemite delivers water to 2.6 million Bay Area residents every day. However, I am interested in how much we are saving. We provide water directly to customers in San Francisco and wholesale through 26 Water agencies in Alameda, Santa Clara, and San Mateo counties. The Hetch Hetchy reservoir, which supplies water for San Francisco and other parts of the Bay Area, was at 77% of its 360,000-acre-feet storage capacity in January compared to 73% in December, and on Feb. 7, it was up to 82%. You can sort the mekko graph by size largest at the top to smallest at the bottom or by reservoir location, from north to south. How Fast Are California Reservoirs Filling Up? That said, most of its outflow makes its way down Feather River (via Rock Creek Reservoir) and ultimately into Orville. The area around Shasta has more volcanic soils that absorb rainfall than the Feather River drainage. But I would never have imagined how to put all the important information into a single plot. however, Ill update the code to include it soon. The SFPUC gets the bulk of its water from a network of reservoirs in the central Sierra Nevada that have long altered flows of the Tuolumne River and its tributaries. Assistant General Manager for Water Steven Ritchie credits the way the system is managed along with lower. I previously made a bar graph showing the overall level of water in the major California reservoirs. The windfall of water is welcome news for households and businesses in San Francisco, which use less water on average compared to the rest of the state but nonetheless have faced calls to cut back since 2021 because of water shortages. Thanks for developing it, and for sharing it with the rest of us! Theyve also seen drought surcharges on their water bills. 2013, photo, the Hetch Hetchy Reservoir is hazy with smoke . Wife of missing Bay Area radio host says Jeffrey Vandergrift will not Sen. Dianne Feinstein is hospitalized in San Francisco with shingles, California extends deadline to file 2022 income taxes to match IRS decision, Going to Tahoe this weekend? February 21, 2023 - BAWSCA Statement on State Water Resources Control Board'sSchedule for Consideration of a Voluntary Agreement for the Tuolumne River. Exclusive: Stunning photos show Yosemite National Park under 15 feet of Warriors treating Andrew Wiggins with understandable patience, but his California snowpack hits highest level this century for March, could Map shows which parts of California exceeded entire years worth of rain, Map shows stunning improvement in California drought, Last chance to see: Bay Bridge lights turn off on Sunday. This dashboard is great! How can I apply to SFPUC? The regional water system provides water to 2.4 million people in San Francisco, Santa Clara, Alameda and San Mateo counties. These sources are diverse in both the origin of the supply snowmelt, rainfall and recharge of groundwater and their location within our system. A dry January with little rainfall across much of Northern California actually didnt hurt the states water storage levels, according to data from the California Department of Water Resources. She is also an alumna of Reveal from the Center for Investigative Reporting Investigative Fellowship and The New York Times Student Journalism Institute. The source water from SFPUC is typically from the Hetch Hetchy reservoir located in the Sierra Nevada Mountains. Gavin Newsom asked all California residents to voluntarily reduce use by 15% compared with use in 2019. Ronald Reagan and George W. Bush. "This was rare for October. "In contrast, the Shasta Lake drainage had only a couple of stations in excess of 10 inches whereas most received less. If you click on the list button in the top right of the dashboard, it will show a list of the reservoirs (in order of size from largest to smallest) and you can check which ones you would like to display. Navigation and Navigable Waters 33.208.82 Hetch Hetchy, Cherry Valley, and Don Pedro Dams and Reservoirs. Is the Stanley Quencher tumbler worth its TikTok hype? In Yosemite National Park, the Hetch Hetchy reservoir relies. Having it here would be great! Major snowstorm might leave you stranded, New 101 express lanes opens in Bay Area. It was the only tool that I could find that would allow me to make a vertical marimekko graph. A wet December produced ample snowfall, which is still sitting at high elevations. document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); Subscribe to receive email notifications of new content. The judge also noted the provision of the state BAWSCA Board of Directors Meeting, March 16, 2023, 6:30 PM. UPDATE: Here's where California reservoir levels stand after this week's rains. The snowpack acts as a natural reservoir and slowly releases water.. Click here for the SFPUC's 2020State of the Regional Water System Report. Your email address will not be published. His recent work has examined the impacts of drought, threats to public lands and wildlife, and the nation's widening rural-urban divide. Los Angeles,Orange CountyandSan Josehave developed ambitious water recycling programs and have vastly improved local groundwater management. Locked padlock You can also share a custom URL by clicking the Save URL button which will put the custom URL into the URL bar of your browser which you can then copy and share. Wonderful site. The main reason for the discrepancy, the department said, is that the focus of the atmospheric river was generally between the Golden Gate and Mount Lassen, meaning that the Feather River watershed received much more rainfall than the Shasta Lake drainage area. If a reservoir gets filled to 100% and more, the dam will break and many cities will get flooded, so the operators are careful. Reservoir Report 4,670 ft -0.02% today 100% of normal Normal Water lake or reservoir water surface elevation above ngvd 1929, ft at Cherry Lk Nr Hetch Hetchy Ca is currently 4,670 ft, approximately 100% of normal. A truly excellent project. since it required flooding a scenic mountain valley in a national park. Ive been meaning to search for aquifer levels. The SFPUC hoards water in dry years when they dont need to, said Peter Drekmeier, policy director at the conservation group Tuolumne River Trust. Awesome work!! Trailhead address: Evergreen Road (Hetch Hetchy Road), Yosemite National Park, CA 95321. You can also use it to monitor only the reservoirs you are most interested in. What rates am I paying? I also added the ability to select specific reservoirs to display on the graph and share a custom URL which will point those selected reservoirs (click on list button on top right of dashboard). For most of the year it will still be possible to divert the flow of the Tuolumne River into the pipeline just downstream of the National Park boundary. Its promising, but too early to let our guard down, said Joseph Sweiss, spokesman for the San Francisco Public Utilities Commission, the citys water purveyor, in an email to The Chronicle. Its important to note that other communities in California have taken actions in far greater magnitude than SF to make our waterways more sustainable. Current conditions of LAKE OR RESERVOIR WATER SURFACE ELEVATION ABOVE NGVD 1929 and RESERVOIR STORAGE are available. Thats a very poor design. This hike follows the shoreline of the reservoir with moderate up and downhill hiking. As it is, at first glance, it looks like shasta is at the top because its 28000 instead of 4552. very nice product overall. Draining Hetch Hetchy without depriving Bay Area residents of San Franciscos water-bank in Don Pedro Reservoir, downstream on the Tuolumne River, holds twice as much water as Hetch Hetchy. The Water Education Foundation is a nonprofit, tax-exempt, CHERRY LK NR HETCH HETCHY CA Important Legacy real-time page Monitoring location 11277200 is associated with a LAKE, RESERVOIR, IMPOUNDMENT in TUOLUMNE COUNTY, CALIFORNIA. The San Francisco Public Utilities Commission is involved in on-going negotiations with the State on a voluntary agreement for implementation of the Bay-Delta Plan, which calls for large increases in water releases on the tributaries to the San Joaquin River, a major tributary to the Bay-Delta. Thinking more about it. The height of the row indicates how much water the reservoir could hold. Why is Lake Nacimiento and Lake San Antonio not listed? Sometimes this is well done sometimes it is poorly done. the Hetch Hetchy Valley to its natural state. For example, the average storage level for Feb. 7 is usually 65% of capacity for Trinity Dam, but currently its at 31%. While the long-term voluntary agreement work continues, the SFPUC does not want to wait to restore the Tuolumne Rivers ecosystem. Getting There. P.S. globe.height = globe.contentWindow.document.body.scrollHeight+40+"px"; environmental context. the city wastes water, so it was a moot issue. McClintock bill proposes to improve public access at Hetch Hetchy. With modest additional investments San Francisco will be able to maintain an uninterrupted supply of high quality Tuolumne River water. Current conditions of LAKE OR RESERVOIR WATER SURFACE ELEVATION ABOVE NGVD 1929 and RESERVOIR STORAGE are available. Restore Hetch Hetchy intends to undo this Great American mistake, and return the valley to Yosemite National Park and all people. This is a very clear graph and I cannot imagine the hours you have put in while setting it up and doing the maintenance. Is that from melting snow and rain water coming from the mountains and filling it up? a broad meaning that had been previously applied in an Really appreciate the work you did to build this graph. sends student to hospital, Heres how much rain and snow is on the way this weekend, Your Privacy Choices (Opt Out of Sale/Targeted Ads). A .gov website belongs to an official government organization in the sends student to hospital, Heres how much rain and snow is on the way this weekend, Your Privacy Choices (Opt Out of Sale/Targeted Ads). I dont think its currently above the historical average, not below 1 year ago. Kudos to the designers. reserved. 95 percent of. It has no natural inflow or out flow. Much of the recent inflow was to Hetch Hetchy, which can hold about 360,000 acre-feet of water and was 83% full at the start of the month. diversion of water? Restore Hetch Hetchy claimed the phrase had word for a type of wild grass. Hi Keith, you could de-select the large reservoirs from the menu at the top right. This is wonderful information. How come the totals disagree with the cal map graphic? Your email address will not be published. Eighty-five percent of the water comes from Sierra Nevada snowmelt stored in the Hetch Hetchy reservoir situated on the Tuolumne River in Yosemite National Park. Its supposed to be brown. In the year prior to Oroville reaching capacity the interactive chart showed the rate of inflow over time. Related articles . The Mokolumne River, which originates in the high Sierra, provides more than 90 percent of the East Bay's water and the Owens Valley in the eastern Sierra serves as a key source of water for Los Angeles. The soaking was welcome in a drought-plagued state with a diminishing water supply. Monitoring location 11275500 is associated with a LAKE, RESERVOIR, IMPOUNDMENT in TUOLUMNE COUNTY, CALIFORNIA. Also a little nit. SFGATE took a look at reservoir levels three days after the Oct. 24 storm and below we take another look, examining water level rises and storage increases at a broader range of reservoirs roughly a week after the atmospheric river event. "It was a very healthy shot in the arm. I live in the central valley. I see many of the local canals flowing with lots of water. proposition that would have funded an $8 million study on how I would turn this graph, 90 counterclockwise, and start the capacity along the bottom axis from left to right, with the biggest reservoirs on the left and the smaller ones on the right. James Q. Martin / Restore Hetch Hetchy Show More Show Less 4 of 7 Reservoir levels rising. Could you also do the same for the Colorado River reservoirs to see how they are fairing? Its water supply Hetch Hetchy Reservoir, in the Sierra Nevada is 80% full, the ground is saturated and near-record rainfall has occurred in recent days. Secure .gov websites use HTTPS . Last week, I paid a visit to Hetch Hetchy. Next feature request: wire in aquifer level data! Thanks. ) or https:// means youve safely connected to the .gov website. ) or https:// means youve safely connected to the .gov website. The middle portion of the watershed from New Don Pedro Reservoir to above Hetch Hetchy Reservoir is characterized by deep canyons and forested terrain. This site is a great tool, especially as we try to climb out of these drought years. Lake Almanor isnt controlled by DWR for flood/supply. Echoing the sentiments of famed naturalist John Muir, members say the glacially-carved Hetch Hetchy Valley that the reservoir sits in is comparable in grandeur to Yosemite Valley and should not be flooded. One of the most impressive was Hetch Hetchy, which provides drinking water to 2.6 million people in San Francisco and other Bay Area communities. Its water supply Hetch Hetchy Reservoir, in the Sierra Nevada is 80% full, . San Francisco's water-bank in Don Pedro Reservoir, downstream on the Tuolumne River, holds twice as much water as Hetch Hetchy. Waterfalls gushed at Hetch Hetchy after an atmospheric river event in October 2021. She is a University of Washington graduate. This November, a group of environmental advocates will put forth a ballot measure that would require the San Francisco Public Utilities Commission to develop a plan to drain Hetch Hetchy. Hoping they start building more reservoirs soon. It can take several days to see the full impact on reservoirs as water continues to run through watersheds and into streams in the days after a storm. Heres where California reservoir levels stand after this weeks rains. We own and operate the Hetch Hetchy Regional Water System which serves 2.7 million customers. Thank you so much for the hard work! Didnt realize how bad things were there. Similar findings are described in theUC Davis studyRe-Assembling Hetch HetchyandUS Bureau of Reclamation study. Hi, I started by using this page (https://cdec.water.ca.gov/reportapp/javareports?name=RES) to determine which reservoirs to include and for some reason Almanor isnt on the list. Francisco Bay Area. I love this this site too. Shasta, Oroville, Hetch Hetchy and many others were built by damming large rivers. According to the SFPUC, the upper reaches of the Tuolumne River have received about 36 inches of rain since the start of the water year in October, almost as much as what the area averages in a year. All of this work is nothing short of brilliant. Climbers Timmy O'Neill (left) and Lucho Rivera atop a wall overlooking Hetch Hetchy Reservoir. The SFPUC has voiced concerns with the Plan, as it would dramatically reduce the agencys water supply, leaving it subject to significant rationing in droughts and more extreme weather conditions brought on by climate change. The advocacy group Restore Hetch Hetchy took its case for For some strange unknown reason, they are not allowing the lake to fill up. A lock ( Californias snowpack slips below average after dismally dry January, renewing concerns about drought, Busting water limits wont cost you in Marin County: Penalties canceled as rain fills reservoirs, California snowpack hits highest level this century for March. Updated to include drought zones while tracking water shortage status of your area, plus reservoir levels and a list of restrictions for the Bay Areas largest water districts. The new 68-mile (109 km) railroad wound its way up the narrow canyon of the Tuolumne River past sharp curves and up steep 4% grades. Thanks for putting this together. Ill pass it along to friends. I wonder why it doesnt work for you. Within San Francisco, we manage water distribution in the City. 1 kaf is the amount of water that would cover 1 acre in one thousand feet of water (or 1000 acres in water in 1 foot of water). Remember, much of the state is still in a drought and so the prudence is warranted.. I think the problem is with the CDEC database (as the LakesOnline website also has had incorrectly high information). Located in the northwest portion of Yosemite National Park, Hetch Restoring Hetch Hetchy will require some changes in how San Francisco moves and stores water. While constructed and owned by San Francisco, the water system was in fact planned to benefit the greater San Francisco Bay Area population. This is the best one out there. Whats going on with the water level at Oroville? Email: kalexander@sfchronicle.com Twitter: @kurtisalexander. Thanks. The Hetch Hetchy Valley today with the dam seen in the lower right. California Reservoir Levels - Dashboard and visualization showing current water levels in California reservoirs . Why is it not listed? California boosts water deliveries to highest level in years, thanks to storms, California reservoir levels: Charts show water supply across the state, Track water shortages and restrictions across Bay Area. David Rizzardo, hydrology section manager for the California Department of Water Resources, said there are a lot of factors that affect reservoir storage. So many facets beautifully chartered. Much of the recent inflow was to Hetch Hetchy, which can hold. There are many very small reservoirs (relative to Shasta) so the bars will be very thin to the point where they are barely a sliver or may not even show up. Local reservoir inflows have negative daily flow rates set to zero. This almost happened with the Orville Dam in 2017. United States. This is a marimekko (or mekko) graph which may take some time to understand if you arent used to seeing them. Hetch Hetchy water travels 160 miles via gravity from Yosemite to the San Francisco Bay Area. With how we can now basically pinpoint future precipitation amounts at least a month in advance, no reason to not let these reservoirs fill up past historic averages for this date. Delivery rates are 7-day average values. Copyright 2023Water Education Foundation. . Kurtis Alexander is an enterprise reporter for The San Francisco Chronicle, with a focus on natural resources and the environment. Our flagship blog features analysis of news from our staff and announcements of upcoming events. it will be cool if there is a way to track the change since Dec or some such date. The half-hour drive to Hetch Hetchy from CA Highway 120 begins outside the park boundaries. Share sensitive information only on official, secure websites. March 12 - The Perks of California Native Wildflowers, March 28 - Rainwater Harvesting and Rain Gardens, April 01 - Lawn Conversion to Native and Drought-Tolerant Plants. What happened to the Hetch Hetchy level? United States. Even with all the rain and floods, still a long way to fill them to capacity. earthquake. Another not monitored by the State? Compared to the historical snowpack for this time of year, the May 2021 survey shows that we are only 2 to 5 percent of normal. The data on water storage comes from the California Department of Water Resources (DWR) Data Exchange Center. Data and Tools Reservoir behind OShaughnessy Dam does not require filtration. Data have been checked by the reporting agency. Trailhead coordinates: 37.946905, -119.787376 (37 56 48.85N 119 47 14.55W) LK ELEANOR NR HETCH HETCHY CA. Although Hetch Hetchy Reservoir is the most well-known, it stores less than 25% of the systems water. To reach Hetch Hetchy, you have to exit Yosemite National Park and re-enter it. All Rights Reserved. Love this. Water data back to 1930 are available online. reloadiframes(); Monitoring location 11277500 is associated with a LAKE, RESERVOIR, IMPOUNDMENT in TUOLUMNE COUNTY, CALIFORNIA. document.getElementById('globes').contentWindow.location.reload(); pertained to water that was wasted, and there was no claim that The water treatment facilities are Tesla Ultraviolet Treatment Facility, disinfecting the Hetch Hetchy supply; Sunol Valley Water Treatment Plant, treating the water from the Calaveras and San Antonio supply as well as the stored Hetch Hetchy supply; and Harry Tracy Water Treatment Plant, treating the water from the Crystal Springs and San Andreas supply. around the Bay Area rely on the Hetch Hetchy Regional Water November 10, 2022 - BAWSCA Statement on State Water-Policy Officials, SFPUC, and Districts Sign MOU for Tuolumne River to Help Recover Salmon While Protecting Water Reliability. An improvement: Could you include a bar for Last year at this date? The Hetch Hetchy Reservoir in Yosemite National Park can store up to 117 billion gallons of drinking water that is used for the Hetch Hetchy Regional Water System that provides water for 2.6 . 7 days 30 days }, false); Lake Tahoe really isnt part of California water, as the outflow goes to Nevada. "It's an increase of a few percent, . Find out more about the system at http://www.sfwater.org, BAWSCA Board Policy Committee Meeting, April 12, 2023 1:30pm. It would be really interesting to visualize whether were able to replenish ground water this year after all the precipitation. Exclusive: Stunning photos show Yosemite National Park under 15 feet of Warriors treating Andrew Wiggins with understandable patience, but his California snowpack hits highest level this century for March, could Map shows which parts of California exceeded entire years worth of rain, Map shows stunning improvement in California drought, Last chance to see: Bay Bridge lights turn off on Sunday. A lock ( The cities of Burlingame, Hayward, Menlo Park, Palo Alto, Redwood City and San Mateo, along with the Alameda County Water District, were among Bay Area communities whose support was influential in persuading Congress to pass the controversial Act, and President Woodrow Wilson to sign it. Diamond Valley Lake is a man-made storage reservoir for storing imported water only. Hetch Hetchy water travels 160 miles via gravity from Yosemite to the San Francisco Bay Area. From the main road, it's about a 20- to 25-minute drive to the parking area. After record snowfall in December was followed by a dry January, there are renewed concerns of drought. For the class we based all our designs on the USACE spillway design manual. The information on Isabella has been fluctuating drastically (by a factor of 10!) Impounded by O'Shaughnessy Dam, Hetch Hetchy Reservoir water passes through hydroelectric powerhouses before it enters the San Joaquin Pipelines, the Tesla Ultraviolet Treatment Facility, and the Coast Range Tunnel on its journey to the Bay Area. looks like the CDEC website is the cause of the issue unless it actually dropped 90% in a day: And more work is underway. All rights reserved. I have to agree with many people here what a great job making such a clear graph of whats happening. Article X, Section 2 that requires diversions for all water An official website of the United States government. drained by the Tuolumne The remaining 15 percent of water comes from runoff in the Alameda and Peninsula watersheds. They also built a spillway that was too steep and did not install energy dissipators along the spillway. So its volume is counted as Orville inflow. As the system aged, especially in an era of heightened safety awareness following the Loma Prieta Earthquake in 1989 and drought in the 1990s, it became evident that the system required a complete overhaul. In response to the Bay-Delta Plan, the SFPUC and the Modesto and Turlock Irrigation Districts have proposed the Tuolumne River Voluntary Agreement, a combination of flow and non-flow measures sufficient to improve all life-stages of native fish populations in the lower Tuolumne River. Partly because of low water, the rivers chinook salmon runs have plummeted from tens of thousands of fish annually a few decades ago to fewer than 1,000 in recent years. reservoir violates the California Constitution specifically the Our reservoirs were alarmingly low. Excellent graphic! Curious why Shasta lake seems to be making big gains in water coming in and Trinity not so much? Several cities and water agencies that are now part of BAWSCA urged Congress to pass the Raker Act in 1913, the law that allowed federal lands in the Sierra Nevada Mountains, including Hetch Hetchy Valley in Yosemite National Park, to be used to build the water system.