hetch hetchy reservoir level percentage

drained by the Tuolumne The Hetch Hetchy Valley today with the dam seen in the lower right. and maybe another vertical axis to the right of that with reservoir capacity. function resizeframe(){ Your tools are awesome just hurts when you receive bad data at times! I second that request. Voters rejected a 2012 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. 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. the issue, including those under Franklin Delano Roosevelt, Great Job on this site! however, Ill update the code to include it soon. I will take a look and see if there are other important reservoirs missing and may add them in the future. 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. Article X, Section 2 that requires diversions for all water Shasta, Oroville, Hetch Hetchy and many others were built by damming large rivers. 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. Could the reason be that the water from Lake Alma or seems to be used for energy generation, and that there does not seem to be any agricultural or urban use? 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). Some want the city to leave more water in stream channels for threatened salmon while others continue a longshot bid to shut down Hetch Hetchy Reservoir in Yosemite altogether and return the area to its natural state. Why is it not listed? Monitoring location 11275500 is associated with a LAKE, RESERVOIR, IMPOUNDMENT in TUOLUMNE COUNTY, CALIFORNIA. 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. Delivering approximately 260 million gallons of water per day, the regional system consists of over 280 miles of pipelines, over 60 miles of tunnels, 11 reservoirs, five pump stations and two water treatment plants. That said, most of its outflow makes its way down Feather River (via Rock Creek Reservoir) and ultimately into Orville. The regional water system provides water to 2.4 million people in San Francisco, Santa Clara, Alameda and San Mateo counties. Located in the northwest portion of Yosemite National Park, Hetch James Q. Martin / Restore Hetch Hetchy Show More Show Less 4 of 7 San Francisco maintained the phrase only Call 209-372-0200 for the latest road and weather conditions, Hetch Hetchy Road Daily Hours: 8 am to 5 pm I hear from the farmers that we waste 80% of the water by flushing it into the ocean. I also hear the environmentalists say, the streams and wildlife need water, so flush it into the ocean. Its an interesting dilemma. Sierra Club unsuccessfully fought the reservoirs establishment And more work is underway. 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. https://cdec.water.ca.gov/dynamicapp/QueryDaily?s=SHA The BAWSCA agencies are therefore key stakeholders in ensuring the system serves as a reliable source of high quality water. Good info to know. While the rainfall has been bad for many people, I am happy to see Californias reservoirs are benefiting slightly, Amen! 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. https://cdec.water.ca.gov/dynamicapp/QueryDaily?s=HTH I do not see Diamond Valley Lake Resevoir on this page. Hetch Hetchy Regional Water System, which serves San Francisco, Gavin Newsom asked all California residents to voluntarily reduce use by 15% compared with use in 2019. Within San Francisco, we manage water distribution in the City. Best of luck out there in California! Reservoir behind OShaughnessy Dam does not require filtration. In 2021, the SFPUC and the Modesto and Turlock Irrigation Districts launched a proactive pilot program with the U.S. 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. currently, there is a lot more water coming in than going out. Born in Seoul, Yoohyun began her career in Arizona, where she worked for two of the state's largest newspapers covering various beats, including criminal justice and education. Restoring Hetch Hetchy will require some changes in how San Francisco moves and stores water. I see many of the local canals flowing with lots of water. Its supposed to be brown. At the height of the recent drought, they still had at least four years in storage. And for the years they were hoarding water, the salmon-based ecosystem suffered.. More about the Tuolumne River Voluntary Agreement can be found athttp://www.tuolumnerivermanagementplan.com. Lake ShastaLevel before the storm on Oct. 22: 882.57 feetLevel after the storm on Nov. 1: 885.47 feetTotal rise: 2.9 feet, Storage before the storm: 970,859 acre-feetStorage after the storm: 1,001,879 acre-feetTotal storage increase: 31,020 acre-feet, Lake OrovilleLevel before the storm: 630.80 feetLevel after the storm: 661.20 feetTotal rise: 30.4 feet, Storage before the storm: 799,638 acre-feetStorage after the storm: 982,263 acre-feetTotal storage increase: 182,625 acre-feet, Hetch HetchyLevel before the storm: 3,729.68 feetLevel after the storm: 3,750.99 feetTotal rise: 21.31 feet, Storage before the storm: 221,500 acre-feetStorage after the storm: 257,800 acre-feetTotal storage increase: 36,300 acre-feet, Trinity LakeLevel before the storm: 2,209.55 feetLevel after the storm: 2,213.22 feetTotal rise: 3.67 feet, Storage before the storm: 648,675 acre-feetStorage after the storm: 672,930 acre-feetTotal storage increase: 24,255 acre-feet, Folsom LakeLevel before the storm: 370.28 feetLevel after the storm: 390.33 feetTotal rise: 20.05 feet, Storage before the storm: 214,225 acre-feetStorage after the storm: 318,577 acre-feetTotal storage increase: 104,352 acre-feet, New Melones LakeLevel before the storm: 916.28 feetLevel after the storm: 917.09 feetTotal rise: 0.81 feet, Storage before the storm: 822,619 acre-feetStorage after the storm: 827,786 acre-feetTotal storage increase: 5,167 acre-feet, Don PedroLevel before the storm: 723.96 feetLevel after the storm: 727.41 feetTotal rise: 3.45 feet, Storage before the storm: 970,226 acre-feetStorage after the storm: 995,836 acre-feetTotal storage increase: 25,610 acre-feet, McClureLevel before the storm: 663.70 feetLevel after the storm: 672.27 feetTotal rise: 8.4 feet, Storage before the storm: 180,900 acre-feetStorage after the storm: 198,467 acre-feetTotal storage increase: 17,210 acre-feet. Flood control agencies (not DWR) have the most say in regard to releases. A truly excellent project. A .gov website belongs to an official government organization in the globe.height = globe.contentWindow.document.body.scrollHeight+40+"px"; Current conditions of LAKE OR RESERVOIR WATER SURFACE ELEVATION ABOVE NGVD 1929 and RESERVOIR STORAGE are available. I think the problem is with the CDEC database (as the LakesOnline website also has had incorrectly high information). It is on the graph. Id only be interested in the totals from Oroville and Shasta. The OShaughnessy Dam, which was completed in 1938 and is 430-feet tall, impounds water in Hetch Hetchy Reservoir for communities in the Bay Area. Current and Historical Visualization, https://cdec.water.ca.gov/dynamicapp/QueryDaily?s=HTH, https://cdec.water.ca.gov/dynamicapp/QueryDaily?s=SHA, https://engaging-data.com/ca-reservoir-level/, https://cdec.water.ca.gov/reportapp/javareports?name=RES, Visualizing Californias Water Storage Reservoirs and Snowpack, Interactive California Reservoir Levels Dashboard. Nate, thanks for the insight. It certainly looks dry at least until the last week in February, he said. //this function is called from the javascript from within the iframe after the contents of iframe are loaded (and after an additional 150ms delay) Hetch Hetchy Reservoir in Yosemite National Park is seen in 2022. Our drinking water comes from a variety of protected sources carefully managed by the SFPUC. Your Privacy Choices (Opt Out of Sale/Targeted Ads). San Francisco's water-bank in Don Pedro Reservoir, downstream on the Tuolumne River, holds twice as much water as Hetch Hetchy. O'Shaughnessy Dam was built on the Tuolumne River in 1923 to create Hetch Hetchy Reservoir. All rights It was at 60 percent as of March 1 and rising, according to the Bureau of Reclamation. I noticed that Folsom does not change whereas every reservoir changes on an hourly update. In 2016, a Tuolumne County Superior Court judge dismissed the 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. The Bay Area portion of the System includes water collection, treatment, and transmission facilities from the Alameda East Portal to the wholesale service area and terminal reservoirs in San Francisco. This was helpful to project seasonal trends & storm impacts. His recent work has examined the impacts of drought, threats to public lands and wildlife, and the nation's widening rural-urban divide. I live in the central valley. 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. The water is delivered by a gravity-based system and aqueduct to This is my first year watching the levels, so maybe Im missing something. 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%. I like the comparisons of last year, and the historical average. 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. Restoring Hetch Hetchy Valley will allow all three power plants to remain operational but will reduce power generation at these by about 20% an average of about 350 million kWh per year. window.addEventListener("orientationchange", function() { Thank you so much for the hard work! Northern California's reservoir levels continued to rise in the week after an atmospheric river slammed the state with torrential rain and high winds. Hetch Hetchy is only one of nine reservoirs in the San Francisco Public Utility Commissions water system. Another not monitored by the State? I havent spent much time looking at it but that data is on the CDEC website. The remaining 15 percent of water comes from runoff in the Alameda and Peninsula watersheds. 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. }, false); Lake Tahoe really isnt part of California water, as the outflow goes to Nevada. The middle portion of the watershed from New Don Pedro Reservoir to above Hetch Hetchy Reservoir is characterized by deep canyons and forested terrain. Email: kellie.hwang@sfchronicle.com, Yoohyun.Jung@sfchronicle.com Twitter: @KellieHwang, @yoohyun_jung. Whats going on with the water level at Oroville? located in a national park and it passed the Raker Act in 1913 to 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. Great graphs and very useful. San Franciscos water system, which includes Hetchy Hetchy, is expected to fill this winter for the first time since 2019. Hetch Hetchy Level before the storm: 3,729.68 feet Level after the storm: 3,750.99 feet Total rise: 21.31 feet Storage before the storm: 221,500 acre-feet Storage after the storm: 257,800. SFPUC said as of this week, the Hetch Hetchy reservoir is at 92 percent capacity. UPDATE: Here's where California reservoir levels stand after this week's rains. the Hetch Hetchy Valley to its natural state. Absolutely zero reason to be releasing this much water from these reservoirs. a broad meaning that had been previously applied in an 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. Shasta is very large and could hold about 3.5 cubic kilometers of water at full (but not flood) capacity. The advocacy group Restore Hetch Hetchy took its case for You can find the charts below from the California Department of Water Resources website. Hetch Hetchy Water System The system originates more than 100 miles from its primary customers, in Yosemite National Park. Lake Mendocino, which has a capacity of 122,400 acre feet, saw the biggest boost from 17% of storage capacity in December to 35% in January. Folsom Lake is letting the water flow out. supplies water to the San Francisco Bay Area. This is the best one out there. After the reservoirs 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 tremendous inflow to city reservoirs during the recent storms, mostly in and around Yosemite National Park, has lifted San Franciscos total water storage to near capacity. Wapama Falls (moderate) 5 mi (8 km) round-trip; 2 hours. The source water from SFPUC is typically from the Hetch Hetchy reservoir located in the Sierra Nevada Mountains. "This was rare for October. Winter weather conditions may cause road closures. mobilewarn(); Thanks for the prompt reply! Hetch Hetchy has generated controversy since it was first Current conditions of LAKE OR RESERVOIR WATER SURFACE ELEVATION ABOVE NGVD 1929 and RESERVOIR STORAGE are available. I appreciate the information you are providing. Water data back to 1930 are available online. Next feature request: wire in aquifer level data! California Reservoir Levels - Dashboard and visualization showing current water levels in California reservoirs . This is a marimekko (or mekko) graph which may take some time to understand if you arent used to seeing them. setTimeout(function (){ For some strange unknown reason, they are not allowing the lake to fill up. Secure .gov websites use HTTPS pertained to water that was wasted, and there was no claim that But they'll cost you, Fight at high school basketball game in S.F. This is a very clear graph and I cannot imagine the hours you have put in while setting it up and doing the maintenance. An improvement: Could you include a bar for Last year at this date? Since June 2011, the Water Enterprise has operated the Citys Emergency Firefighting Water System (EFWS, formerly known as the Auxiliary Water Supply System (AWSS)), an independent, high-pressure water supply system for fire suppression. In whats known as the Bay-Delta Plan, state water regulators are amid a years-long effort to negotiate a policy for how much water should be kept in rivers that flow to the Sacramento-San Joaquin River Delta to meet the needs of both people and wildlife. Francisco Bay Area. 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. 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. "It's an increase of a few percent, . Hetch Hetchy Reservoir in Yosemite was 69 percent full on Tuesday, 150 percent of normal for this time of year. While the long-term voluntary agreement work continues, the SFPUC does not want to wait to restore the Tuolumne Rivers ecosystem. City officials have touted their efforts to help salmon, for example by timing water releases to assist with migration and restoring breeding grounds. Thanks for the link. Important Legacy real-time page. While constructed and owned by San Francisco, the water system was in fact planned to benefit the greater San Francisco Bay Area population. Monitoring location 11275500 is associated with a LAKE, RESERVOIR, IMPOUNDMENT in TUOLUMNE COUNTY, CALIFORNIA. Ive added it to my bookmarks for quick reference. If we reach 100% after the current rains and then it stops raining for the season, then our percentage will start going down. Water data back to 1930 are available online. Hetch Hetchy Regional Water System The Hetch Hetchy watershed, an area located in Yosemite National Park, is the major source of water for all of San Francisco's water needs. But they'll cost you, Fight at high school basketball game in S.F. not passed until 1928 five years after the dam was built. The water travels through a series of pipelines before it reaches the Bay Area and blends with five local reservoirs. earthquake. Before joining the Chronicle, Alexander worked as a freelance writer and as a staff reporter for several media organizations, including The Fresno Bee and Bay Area News Group, writing about government, politics and the environment. } Share sensitive information only on official, secure websites. "Soils that have become hydrophobic due to wildfire can also contribute to increased runoff because the water is less able to penetrate the burned soil," the department said. Our reservoirs were alarmingly low. Great URL. In fact, thanks to a little snowmelt, water levels were up for all reservoirs from December to January. Tracy Barbutes, Freelance / Special to The Chronicle, Heres where California reservoir levels stand after this weeks rains. They are releasing water into the canals. This is wonderful information. Greetings from Mount Laurel New Jersey. 1 covering up to $875 million and much of the rest coming from federal loans to water suppliers. Thats a great suggestion and one that would be particularly helpful! Ive been meaning to search for aquifer levels. Other California water agencies have done far more to reduce the impact of their system on Mono Lake, the Trinity and San Joaquin Rivers, and the Bay-Delta. The snowpack acts as a natural reservoir and slowly releases water.. For the first week of February, there was a slight increase for most reservoirs from January amounts. It takes a fair amount of work to make graphs compared to other more plug-and-play libraries but its very customizable, which is a plus. Thanks for putting this together. Horoscope for Friday, 3/03/23 by Christopher Renstrom, No seriously, dont drive up to Tahoe this weekend, Wife of Jeffrey Vandergrift issues somber update, Snowboarder dies at Tahoe ski resort following historic blizzard, Scream publicity stunt floods Bay Area dispatch with 911 calls, The best fried chicken is at a San Francisco strip club, Rain reenters Bay Area forecast: Have an umbrella near you, The Warriors broke Russell Westbrook, just like old times, Mochi muffin bakery closes SF cafe after just 4 months, Arrest in killing of woman seen running through Tahoe campground, Oakland ransomware attackers leak 'confidential' data, California Department of Water Resources website, 14 things you need in your car before you drive to Tahoe. 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. 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. A .gov website belongs to an official government organization in the Thats just another very strong indication visually that its a big water year.. The captured water is piped 150 miles to the Bay Area. Rizzardo said there was a decent amount of flow into the reservoirs into January, even though weather-wise it was bone dry, a result of lower elevation snow at 4,000 to 6,000 feet making its way into the reservoirs. While it may seem that Decembers production could get us through the rest of the season, Rizzardo explains that in hydrology, you need consistent water shed to keep soils happy. He fears that without more precipitation this season, well enter our third very dry year. A small portion of the citys water comes from local reservoirs. A 1 week change would be interesting to show on each. Only modest new supplies would be required in the driest years. 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. Twenty of San their water supply would cost hundreds of millions of dollars at 7 days 30 days Maybe bad data. The water system, which includes the landmark Hetch Hetchy Reservoir, is expected to fill this winter, for the first time since 2019, with nearly 1.5 million acre-feet of water. Love easy to read and understand information. She joined the Chronicle as a data reporter in 2021. The height of the row indicates how much water the reservoir could hold. Even with the latest precipitation, Folsoms values was unchanged. Units are in kaf, thousands of acre feet. Folsom is like an overflow tank. Related articles . 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. 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. 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.