2013, photo, the Hetch Hetchy Reservoir is hazy with smoke . Monitoring location 11275500 is associated with a LAKE, RESERVOIR, IMPOUNDMENT in TUOLUMNE COUNTY, CALIFORNIA. It could be the 180% of historical average of snowpack, which will be melting in a couple months. Super frustrating. 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. But Sites would be what's called an off-channel . Ive looked at reservoir sights for years. Email: kellie.hwang@sfchronicle.com, Yoohyun.Jung@sfchronicle.com Twitter: @KellieHwang, @yoohyun_jung. The source water from SFPUC is typically from the Hetch Hetchy reservoir located in the Sierra Nevada Mountains. Especially for small ones it is hard to identify them and click on them. The Department of Water Resources, which manages the state's water supply, said in a statement that there are several possible reasons for the difference in inflow amounts between the two reservoirs. 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. 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. While the rainfall has been bad for many people, I am happy to see Californias reservoirs are benefiting slightly, Amen! the Hetch Hetchy Valley to its natural state. 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%. 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. Remaining Capacity text in the legend should be brown? Take CA Highway 120 from the park toward Groveland. Hours: Year-round, but only accessible by car when the Hetch Hetchy Road is open. James Q. Martin / Restore Hetch Hetchy Show More Show Less 4 of 7 Whats going on with the water level at Oroville? Top ways to experience Hetch Hetchy Reservoir and nearby attractions Yosemite: Audio Driving Tour 1 Full-day Tours from $9.99 per group (up to 8) Private Yosemite Explorer Package | 3 Days of Adventure 3 Private and Luxury from $750.00 per adult (price varies by group size) Private Family Photo Day in Yosemite 78 Recommended Full-day Tours from }, false); Lake Tahoe really isnt part of California water, as the outflow goes to Nevada. The north (side of the reservoir) usually has two waterfalls going at the best of times, but youll see up and down the canyon walls, if you look close, you count there are about 12 waterfalls running now, said Steve Ritchie, the SFPUCs assistant general manager of water enterprise, during a recent drought report to the agencys governing board. A lock ( The blue line indicates the reservoirs water level one year ago today. The proportion of blue to brown will show how full it is, while the red line shows the historical level that reservoir is typically at for this date of the water year. They are releasing water into the canals. What happened to the Hetch Hetchy level? "It's an increase of a few percent, . Spring snowmelt runs down the Tuolumne River and fills Hetch Hetchy, the largest reservoir in our water system. Restore Hetch Hetchy. For the first week of February, there was a slight increase for most reservoirs from January amounts. Share sensitive information only on official, secure websites. You can find the charts below from the California Department of Water Resources website. Monitoring location 11277200 is associated with a LAKE, RESERVOIR, IMPOUNDMENT in TUOLUMNE COUNTY, CALIFORNIA. https://waterdata.usgs.gov/monitoring-location/11275500/#parameterCode=00054&period=P7D. 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. The Bay Area's main reservoir is up 21 feet. A small portion of the citys water comes from local reservoirs. Locked padlock do so. 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. We provide water directly to customers in San Francisco and wholesale through 26 Water agencies in Alameda, Santa Clara, and San Mateo counties. This other page: One gauge in the area has measured 6.12 inches since Oct. 1, which is 899% of normal. Hetch Hetchy Reservoir in Yosemite was 69 percent full on Tuesday, 150 percent of normal for this time of year. GNSS2 - Level 2 Quality Survey Grade Global Navigation Satellite System. Next feature request: wire in aquifer level data! Data have been checked by the reporting agency. . HETCH HETCHY RES A HETCH HETCHY CA. } I find myself coming back to this every few days to check on our water . How Fast Are California Reservoirs Filling Up? 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. Its important to note that other communities in California have taken actions in far greater magnitude than SF to make our waterways more sustainable. This hike follows the shoreline of the reservoir with moderate up and downhill hiking. Congress had to approve the project because it was Im curious: Lk Almanor is the 8th largest reservoir in CA. Call 209-372-0200 for the latest road and weather conditions, Hetch Hetchy Road Daily Hours: 8 am to 5 pm "It was a very healthy shot in the arm. This is of particular interest as the self-imposed restrictions deadline is approaching and the federal government may have to step in and mandate restrictions across the 7 states, including 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. Therefore flood control agencies take the more conservative route and order the release of water. It has no natural inflow or out flow. Is that from melting snow and rain water coming from the mountains and filling it up? Thank you for a beautiful job. It would be really interesting to visualize whether were able to replenish ground water this year after all the precipitation. Commission. finding an alternative water and power source (Hetchy Hetchy also As of Feb. 1, the systems total water storage was just over 1.3 million acre-feet, or about 92% of capacity. For the class we based all our designs on the USACE spillway design manual. 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. Really appreciate the work you did to build this graph. Thanks. Didnt realize how bad things were there. provides water to 2.7 million residents and businesses in the San I appreciate the information you are providing. 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. McClintock bill proposes to improve public access at Hetch Hetchy. At times, nearly 90% of the flow of the Tuolumne River is piped off by the SFPUC and other water agencies in the region. draining the reservoir to court, arguing in 2015 that the I notice Briones Reservoir is not on the list. 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. Hetch Hetchy Water System The system originates more than 100 miles from its primary customers, in Yosemite National Park. proposition that would have funded an $8 million study on how Why is it not listed? So on Jan 10 were at 82% of the average for Jan 10. 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. Heres where California reservoir levels stand after this weeks rains. Constitution used to support the arguments to remove the dam was Impounded by OShaughnessy 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. 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. **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. The surplus has renewed concerns about San Francisco stockpiling water at the expense of rivers and the fish and wildlife that live there. Hetch Hetchy water travels 160 miles via gravity from Yosemite to the San Francisco Bay Area. Its just small enough that the name doesnt appear as the bar is too thin. Water data back to 1956 are available online. So its volume is counted as Orville inflow. Your tools are awesome just hurts when you receive bad data at times! That cant be right. Thank you! How can I match up other monitoring locations similar to the ones on this Interactive Dashboard? In fact, thanks to a little snowmelt, water levels were up for all reservoirs from December to January. SFPUC said as of this week, the Hetch Hetchy reservoir is at 92 percent capacity. 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. //this function is called from the javascript from within the iframe after the contents of iframe are loaded (and after an additional 150ms delay) 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. United States. One acre-foot is the equivalent of one acre of land covered in one foot of water. How come the totals disagree with the cal map graphic? Hetch Hetchy is one of nine reserviors in a water system that serves San Francisco and other Bay Area communities. and its snowmelt-fed water supply, water from Hetch Hetchy 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. generates electricity for the city). A .gov website belongs to an official government organization in the Lots of possibilities, just curious. All rights reserved. BAWSCA agencies advocated for the capital improvement program that was adopted by the SFPUC in 2002, and are actively monitoring its implementation. 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. Generation at the Kirkwood power plant would depend on the natural flow of the Tuolumne River, and would be significantly diminished during late summer and fall. Local reservoir inflows have negative daily flow rates set to zero. Love easy to read and understand information. This would allow us to see important, but noise-level reservoirs like hetch hetchy. Similar to the water supply issues discussed above, the amount of power replacement is small in a statewide context less than of 1% of the renewable power supply being developed this decade alone.