hetch hetchy reservoir level percentage

As it is, at first glance, it looks like shasta is at the top because its 28000 instead of 4552. very nice product overall. Add a button to convert the row heights to log scale. Your tools are awesome just hurts when you receive bad data at times! I find myself coming back to this every few days to check on our water . Weve been at zero now for several weeks, and we really want to see that turn around., Kellie Hwang and Yoohyun Jung are San Francisco Chronicle staff writers. For each of the top 8 reservoirs the storage has increased by a total of 217 kaf, however). Great visualization Chris! California reservoir levels: . Santa Clara, Alameda and San Mateo counties. setTimeout(function (){ Owned by the city of San Francisco, Hetch Hetchy Reservoir The cities, water districts and private utilities represented by the Bay Area Water Supply and Conservation Agency (BAWSCA) rely upon the Hetch Hetchy system for water to protect the health, safety and economic well being of 1.8 million citizens, businesses and community organizations. I wonder why it doesnt work for you. I am grateful for all that you have done here to open our eyes to what is happening, what has happened, and even what might be on the horizon. How come the totals disagree with the cal map graphic? word for a type of wild grass. San Francisco operates three medium-sized hydro-electric power plants in the Tuolumne River watershed Kirkwood, Moccasin, and Holm. Heres an example of that data for Shasta, where you can see the daily inflows and outflows: 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. Very nice work. 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. Historical average is near unattainable these days. Voters rejected a 2012 Delivery rates are 7-day average values. For example, the average storage level for Feb. 7 is usually 65% of capacity for Trinity Dam, but currently its at 31%. Crystal Springs Reservoir, along Highway 280 in San Mateo County, was 89 percent . Similar findings are described in theUC Davis studyRe-Assembling Hetch HetchyandUS Bureau of Reclamation study. In 2021, the SFPUC and the Modesto and Turlock Irrigation Districts launched a proactive pilot program with the U.S. generates electricity for the city). I would like to make one small suggestion:. Restoring Hetch Hetchy will require some changes in how San Francisco moves and stores water. Click here for the SFPUC's 2020State of the Regional Water System Report. Especially for small ones it is hard to identify them and click on them. I appreciate the information you are providing. 7 days 30 days 501(c)3 organization, federal tax ID #942419885. A .gov website belongs to an official government organization in the It used to be full (and beyond). Hetch Hetchy water travels 160 miles via gravity from Yosemite to the San Francisco Bay Area. Thats enough to supply the citys service area for perhaps seven years. This is also affected by most of these dams multi-purpose nature where they are near constantly releasing for power(like Shasta) or to make room for flood control capacity(like Folsom). Have you looked into that side of the water management equation? Assistant General Manager for Water Steven Ritchie credits the way the system is managed along with lower. Restore Hetch Hetchys subsequent appeal to the ruling was the city wastes water, so it was a moot issue. The trail includes spectacular views of Tueeulala and Wapama Falls. I notice Briones Reservoir is not on the list. 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. Francisco Bay Area. FYI it looks like Isabella is reading incorrectly, likely because its well above 100%. Thanks for putting this together. Copyright Barry Rokeach, 2014. Really appreciate the work you did to build this graph. Units are in kaf, thousands of acre feet. Wonderful site. Due to its high-altitude location at 3,900 feet above sea level During the winter months, they let water out of the reservoirs in anticipation of large storms. The average for this time of year is approximately 4,659.57ft, plus or minus 39ft. The remaining 15 percent of water comes from runoff in the Alameda and Peninsula watersheds. That cant be right. According to the San Francisco Public Utilities Commission, Hetch Restore Hetch Hetchy supports a power replacement plan that is truly renewable, and will not increase emissions of any pollutants or carbon that causes global warming. function resizeframe(){ a minimum, according to the San Francisco Public Utilities Great URL. Remaining Capacity text in the legend should be brown? reservoir violates the California Constitution specifically the And more work is underway. The BAWSCA agencies are therefore key stakeholders in ensuring the system serves as a reliable source of high quality water. Reservoir behind OShaughnessy Dam does not require filtration. Lake Oroville. It updates hourly using data from the California Department of Water Resources (DWR) website, giving an up-to-date picture of California reservoir levels. While the long-term voluntary agreement work continues, the SFPUC does not want to wait to restore the Tuolumne Rivers ecosystem. resizeframe(); Maintaining this variety of sources is an important component of our near and long-term water supply management strategy. How Fast Are California Reservoirs Filling Up? 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. In the year prior to Oroville reaching capacity the interactive chart showed the rate of inflow over time. Major snowstorm might leave you stranded, New 101 express lanes opens in Bay Area. This is a great and very thoughtfully designed web site! As of Feb. 1, the systems total water storage was just over 1.3 million acre-feet, or about 92% of capacity. According to the San Francisco Public Utilities Commission, Hetch Hetchy Reservoir can store as much as 117 billion gallons for the Hetch Hetchy Regional Water System, which serves San Francisco, Santa Clara, Alameda and San Mateo counties. All of this work is nothing short of brilliant. Construction of the regional water system proceeded over the following 20 years, with water first delivered in 1934. Remember, much of the state is still in a drought and so the prudence is warranted.. Although Hetch Hetchy Reservoir is the most well-known, it stores less than 25% of the systems water. The name Hetch Hetchy is derived from a Sierra Miwok Waterfalls gushed at Hetch Hetchy after an atmospheric river event in October 2021. 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? May 24, 2022 - BAWSCA Statement About the Adoption of a Systemwide Water Use Reduction of 11%. I recently joined the team with Restore Hetch Hetchy as Engagement & Development Director. Within San Francisco, we manage water distribution in the City. 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. A lock ( Next feature request: wire in aquifer level data! Twenty of San It used to be full (and beyond). Hetch Hetchy has generated controversy since it was first Even with all the rain and floods, still a long way to fill them to capacity. ) or https:// means youve safely connected to the .gov website. Most local reservoir inflow timeseries are too short to calculate long-term values. 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. I have to agree with many people here what a great job making such a clear graph of whats happening. Official websites use .gov This website along with another shows that Eastmans level is still rising even though we have not had rain in more than a week. This system encompasses more than 1,250 miles of distribution pipelines, as well as 12 in-City reservoirs and eight water tanks with a total storage capacity of approximately 413 million gallons. A wet December produced ample snowfall, which is still sitting at high elevations. Hetch Hetchy is only one of nine reservoirs in the San Francisco Public Utility Commissions water system. I had a class in spillway design many years ago. 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. **new combined California reservoir and snowpack visualizer**, made a bar graph showing the overall level of water in the major California reservoirs, the California Department of Water Resources (DWR) Data Exchange Center. Thats up more than 400,000 acre-feet since early December, before the unrelenting series of atmospheric river storms blew through California between Christmas and mid-January. Thanks for providing it for public information. The valley is Reservoir levels rising. For example, Hetch Hetchy Reservoir in Yosemite National Park provides 85 percent of San Francisco's total water needs. Our drinking water comes from a variety of protected sources carefully managed by the SFPUC. The problem is that we have no idea of knowing ahead of time what kind of storms well have and how long theyll last, but the reservoir operators have to be super careful and extra cautious, so they periodically let the water flow out. Current conditions of LAKE OR RESERVOIR WATER SURFACE ELEVATION ABOVE NGVD 1929 and RESERVOIR STORAGE are available. hetch hetchy reservoir level percentage Rivers and Streams Streams draining into the Peninsula Watershed within the project area are relatively small, steep, and in a 2021-11-17. http://www.tuolumnerivermanagementplan.com. But tearing down O'Shaughnessy Dam in order to restore Hetch Hetchy Valley would be a disaster. Meant this comment for the integrated snowpack and reservoir view. Folsom Lake is letting the water flow out. This is an excellent tool you have put together. maybe label the vertical axis with aggregate total or system total capacity. Thats a very poor design. If you are on a computer, you can hover your cursor over a reservoir and the dashboard at the top will provide information about that individual reservoir. Isabella is filling quite slowly in order to test out the new $500 million spillway. Is that a good thing? "It is unknown how much area of the Feather River and Shasta Lake drainages are impacted by hydrophobic soils.". After record snowfall in December was followed by a dry January, there are renewed concerns of drought. The information on Isabella has been fluctuating drastically (by a factor of 10!) Flood control agencies (not DWR) have the most say in regard to releases. . 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. globe = document.getElementById('mekko'); earthquake. the map graph doesnt include berryessa. Commission. Article X, Section 2 that requires diversions for all water Kudos to the designers. Hetch Hetchy is Monitoring location 11275500. Love this. Its currently listed on this page as 29kaf full, but the usgs.gov page below says Hetch Hetchy is at 299.7kaf full. 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. Whats going on with the water level at Oroville? We provide water directly to customers in San Francisco and wholesale through 26 Water agencies in Alameda, Santa Clara, and San Mateo counties. It seems likely one of those two readings is wrong. This file photo shows Shasta Lake. LK ELEANOR NR HETCH HETCHY CA. 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. You can email her at [email protected]. Thanks for developing it, and for sharing it with the rest of us! Theyve also seen drought surcharges on their water bills. Great resource! Thank you! Best of luck out there in California! 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). I will take a look and see if there are other important reservoirs missing and may add them in the future. 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. For perspective, water demand across the SFPUC's service area of 2.7 million people was about 205,000 acre-feet last fiscal year. Share sensitive information only on official, secure websites. Occasionally the source water will shift to local reservoirs during routine maintenance to the conveyance system. It was my first time using D3 and it took me a long time to get up to speed. United States. So its volume is counted as Orville inflow. 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. The main goal of this visualization is to provide a quick overview of the status of the main reservoirs in the state and how they compare to historical levels. What happened to the Hetch Hetchy level? Great graphs and very useful. If a reservoir gets filled to 100% and more, the dam will break and many cities will get flooded, so the operators are careful. Lake Mendocino and Lake Berryessa water levels stayed the same. O'Shaughnessy Dam is a 430-foot (131 m) high concrete arch-gravity dam in Tuolumne County, California, United States.It impounds the Tuolumne River, forming the Hetch Hetchy Reservoir at the lower end of Hetch Hetchy Valley in Yosemite National Park, about 160 miles (260 km) east of San Francisco. 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. City officials have touted their efforts to help salmon, for example by timing water releases to assist with migration and restoring breeding grounds. Although Hetch Hetchy Reservoir is the most well-known, it stores less than 25% of the system's water. And while one storm didn't come close to ending the drought, some reservoirs in Northern California, especially those that fell right in the path of the storm, saw significant gains. While forecasters can predict the likelihood of future rainfall over large areas, they cant pinpoint it to the degree needed to determine whether a particular watershed/reservoir will overflow and cause damage and loss of life. BAWSCA Board of Directors Meeting, March 16, 2023, 6:30 PM. The middle portion of the watershed from New Don Pedro Reservoir to above Hetch Hetchy Reservoir is characterized by deep canyons and forested terrain. 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? Locked padlock How can I apply to SFPUC? Copyright 2023Water Education Foundation. 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.

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