Curious why Shasta lake seems to be making big gains in water coming in and Trinity not so much? Is it because the laws have changed on how much each reservoir can hold or is it in anticipation of significantly more rain? finding an alternative water and power source (Hetchy Hetchy also Usually with warm ARs, you get a dramatic increase in inflow, which can fill even very large reservoirs relatively quickly, like Oroville in 2017. The commission plans to decide Nov. 23 whether to formally ask customers to conserve water. Climbers Timmy O'Neill (left) and Lucho Rivera atop a wall overlooking Hetch Hetchy Reservoir. The OShaughnessy Dam i s 300 feet tall only medium-sized by todays standards. DWR is one of many local, State and Federal entities that dictate water releases. Copyright Barry Rokeach, 2014. As of 5pm on 1/18, the data appears correct (~58k acre feet), but an hour ago it was reading off the chart (3X above what they are allowed to store right now). 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. How do I contact support? Great URL. 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. A diverse mix of sources protects us from potential disruptions due to emergencies or natural disasters, provides resiliency during periods of drought, and helps us ensure a long-term, sustainable water supply as we address issues such as climate uncertainty, regulatory changes and population growth. Thanks for the link. 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. 7 days 30 days It does not meet the California definition of renewable energy. As of Feb. 1, the systems total water storage was just over 1.3 million acre-feet, or about 92% of capacity. Hetch Hetchy has generated controversy since it was first But they'll cost you, Fight at high school basketball game in S.F. Current conditions of LAKE OR RESERVOIR WATER SURFACE ELEVATION ABOVE NGVD 1929 and RESERVOIR STORAGE are available. She has been with SFGATE for more than 10 years. Having it here would be great! 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? the Hetch Hetchy Valley to its natural state. The reservoir is eight miles long and the largest single body of water in Yosemite. At the same time, theyve also said its critical to maintain sufficient water supplies to keep Bay Area communities and its economy running during a prolonged drought. Next feature request: wire in aquifer level data! Monitoring location 11277200 is associated with a LAKE, RESERVOIR, IMPOUNDMENT in TUOLUMNE COUNTY, CALIFORNIA. Ive been meaning to search for aquifer levels. UPDATE: Here's where California reservoir levels stand after this week's rains. The BAWSCA agencies are therefore key stakeholders in ensuring the system serves as a reliable source of high quality water. BAWSCA agencies also are implementing water conservation and water recycling projects to help preserve this precious resource for their communities, and are working to identify alternate sources of water supply. Is that from melting snow and rain water coming from the mountains and filling it up? Part of the lake is on the California side, but it has zero California water impact beyond the immediate Tahoe residents. Didnt realize how bad things were there. 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. Privacy Policy | 2011-2021 San Francisco Public Utilities Commission. I will take a look and see if there are other important reservoirs missing and may add them in the future. Kudos to the designers. 2022 All Rights Reserved. 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. Our reservoirs were alarmingly low. I would like to make one small suggestion:. How do I pay my bill? Restore Hetch Hetchys subsequent appeal to the ruling was //this function is called from the javascript from within the iframe after the contents of iframe are loaded (and after an additional 150ms delay) During the winter months, they let water out of the reservoirs in anticipation of large storms. 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. Lock Additionally, the bounty helps the more than two dozen communities in Alameda, San Mateo and Santa Clara counties that get their water from the city. Hetch-Hetchy predicted to fill by end of the snowmelt period 2020-2021 Winter season continues to be dry 2019-2020 was dry, although key differences Feb. 2020 was unusually warm, which impacted snowfall levels and water demands; Feb 2021 was cooler, and hence snowfall level higher and water use lower The Hetch Hetchy Valley today with the dam seen in the lower right. Last week, I paid a visit to Hetch Hetchy. Much of the water passing through Holm would be diverted into the Mountain Tunnel and be used to generate power a second time at the Moccasin powerhouse. a minimum, according to the San Francisco Public Utilities generates electricity for the city). Take CA Highway 120 from the park toward Groveland. Department of Water Resources is just another in a long line of completely mismanaged California entities. United States. 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. Most local reservoir inflow timeseries are too short to calculate long-term values. Draining Hetch Hetchy without depriving Bay Area residents of The soaking was welcome in a drought-plagued state with a diminishing water supply. Different presidential administrations also have tried to address https://engaging-data.com/ca-reservoir-level/ 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. 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 almost happened with the Orville Dam in 2017. The SFPUC has consistently stated that voluntary agreements are the best path forward for the Bay-Delta, as the voluntary agreement strikes the right balance between environmental stewardship and water reliability. it will be cool if there is a way to track the change since Dec or some such date. Id only be interested in the totals from Oroville and Shasta. Current as of October 03, 2022 | Updated by . Your tools are awesome just hurts when you receive bad data at times! not passed until 1928 five years after the dam was built. Love the dashboard! I had a class in spillway design many years ago. Save my name, email, and website in this browser for the next time I comment. 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. What rates am I paying? Charts from the California Department of Water Resources show conditions at key state reservoirs on Oct. 22 (left) and on Nov. 2 (right). 2151 River Plaza Drive, Suite 205 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, Here's where California reservoir levels stand after this week's rains, Going to Tahoe this weekend? It wont be full until Spring snowmelt. River. The upcountry portion of the System begins with Hetch Hetchy Reservoir in Yosemite National Park. 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. We provide water directly to customers in San Francisco and wholesale through 26 Water agencies in Alameda, Santa Clara, and San Mateo counties. Thats a great suggestion and one that would be particularly helpful! 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. Thank you so much for the hard work! There are no alerts at this time. The state's second-largest reservoir, Lake Oroville in Butte County, saw especially dramatic gains with a 30.4-foot rise in the water level and a 182,625-acre-foot increase in the total amount of water, data posted Tuesday from the California Department of Water Resources showed. Could you also do the same for the Colorado River reservoirs to see how they are fairing? Voters rejected a 2012 Kellie Hwang is the newsletter editor for The San Francisco Chronicle. The trail takes you to the base of Wapama Falls, passing two smaller waterfalls (during spring) on the way. For detailed analysis of how San Franciscos water system will operate without Hetch Hetchy reservoir, see the Environmental Defense Funds studiesParadise RegainedandCherry Intertie Alternative. Flood control agencies (not DWR) have the most say in regard to releases. Really appreciate the work you did to build this graph. Also a little nit. This is my first year watching the levels, so maybe Im missing something. Required fields are marked *. 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. She was born and raised in the Bay Area and got her start in news at the Daily Californian newspaper at UC Berkeley where she majored in English literature. However, I am interested in how much we are saving. Even with all the rain and floods, still a long way to fill them to capacity. But I would never have imagined how to put all the important information into a single plot. You can find the charts below from the California Department of Water Resources website. It allowed the water over the spillway to move too fast creating a vacuum between the water and the concrete that pulled the concrete sections out of the spillway. Prior to The Chronicle, she worked as a data journalist for Honolulu Civil Beat, a watchdog news organization covering the Hawaiian islands. You dont see runoff right away, the snow is still up there, frozen, doing what we want it to do, he said. 1 covering up to $875 million and much of the rest coming from federal loans to water suppliers. 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. Very nice work. Therefore flood control agencies take the more conservative route and order the release of water. BAWSCA Board of Directors Meeting, March 16, 2023, 6:30 PM. This is a marimekko (or mekko) graph which may take some time to understand if you arent used to seeing them. A wet December produced ample snowfall, which is still sitting at high elevations. In 2007, the Bush Begin at O'Shaughnessy Dam. Tracy Barbutes, Freelance / Special to The Chronicle, Heres where California reservoir levels stand after this weeks rains. Hi Keith, you could de-select the large reservoirs from the menu at the top right. 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. For some strange unknown reason, they are not allowing the lake to fill up. Thank you for a beautiful job. If you are experiencing a water, power, or sewer emergency or service problem call our 24-hour hotline at 3-1-1 or (415) 701-2311 from outside SF or log on at, Public Notices and Public Meeting Notices, Customer Assistance Program - Water/Wastewater, Customer Assistance Program - Hetch Hetchy Power, Hetch Hetchy Power Medical Necessity Assitance Program, Hot Water Recirculation Pump Rebate Program, San Francisco's Urban Watersheds Overview, Free Phone Consultations, Evaluations and Devices, Games Puzzles Virtual Backgrounds Overview, Get your Free 2023 Pollution Prevention Calendar, Construction & Contracts Overview Overview, Contract Opportunities and Payments Overview, Project Review and Land Use - Hetch Hetchy Water and Power, Project Review and Land Use - San Francisco, Sewer System Improvement Program Overview, Water Infrastructure Improvements Overview, Boards, Commissions and Committees Overview, Internships, Apprenticeships and Youth Employment, Public Notices and Public Meeting Notices Overview, Audited Financial Statements & Annual Comprehensive Financial Reports, SFPUC Preliminary Public Power Options Report, Civic Center Sustainable Utilities District Plan, Resolution Condemning Systemic Racism & Taking Action to Promote Racial Justice. More about the Tuolumne River Voluntary Agreement can be found athttp://www.tuolumnerivermanagementplan.com. pertained to water that was wasted, and there was no claim that I notice Briones Reservoir is not on the list. The trail includes spectacular views of Tueeulala and Wapama Falls. For each of the top 8 reservoirs the storage has increased by a total of 217 kaf, however). mobilewarn(); 95 percent of. So my question is, How do we know if we are saving the water for later release (late summer) or are we releasing it to the ocean? I live close to Eastman Lake. Awesome work!! In 2021, the SFPUC and the Modesto and Turlock Irrigation Districts launched a proactive pilot program with the U.S. Its fluctuating between ~107% and ~20% from one hour to the next (reading 107.6 atm). Why isnt Lake Sonoma included? Francisco Bay Area. Omar, Thanks! ) or https:// means youve safely connected to the .gov website. California drought: Charts show where reservoir levels stand after a dry January, Track water shortages and restrictions across Bay Area. Hetch Hetchy is only one of nine reservoirs in the San Francisco Public Utility Commissions water system. While constructed and owned by San Francisco, the water system was in fact planned to benefit the greater San Francisco Bay Area population. Near the town of La Grange, the river exits the Sierra Nevada foothills and flows through a gently sloping alluvial valley that is incised into Pleistocene alluvial fans. Its great seeing all the reservoirs in California at or near historical averages. I havent spent much time looking at it but that data is on the CDEC website. 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. Monitoring location 11275500 is associated with a LAKE, RESERVOIR, IMPOUNDMENT in TUOLUMNE COUNTY, CALIFORNIA. The worst possible scenario is it just remains completely dry. How can I apply to SFPUC? Your email address will not be published. So included in DWR #S. During late summer and early fall, it will be necessary to move stored supplies from Cherry or Don Pedro Reservoirs into the pipeline. 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. a broad meaning that had been previously applied in an I second that request. Read more about the data team and their work. Previously, Kellie covered dining news and trends, visual arts, events and nightlife for the Arizona Republic, and freelanced for the former Contra Costa Times. Long-term values for reservoir inflows use maximum number of complete water years in record. 9 of 12 10 of 12 Hetch Hetchy Reservoir with Wapama Falls near Groveland, Calif. on Wednesday March 12, 2014, is currently at fifty percent of capacity. Ronald Reagan and George W. Bush. Thanks for putting this together. 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. Current conditions of LAKE OR RESERVOIR WATER SURFACE ELEVATION ABOVE NGVD 1929 and RESERVOIR STORAGE are available. "In contrast, the Shasta Lake drainage had only a couple of stations in excess of 10 inches whereas most received less. This file photo shows Shasta Lake. 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. 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 Thanks for taking the time to do that.

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