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. Restore Hetch Hetchy. Gavin Newsom asked all California residents to voluntarily reduce use by 15% compared with use in 2019. This file photo shows Shasta Lake. But it has flooded nine miles of a glacier-carved valley and blocks access to the Grand Canyon of the Tuolumne and other nearby areas. Greetings from Mount Laurel New Jersey. While the long-term voluntary agreement work continues, the SFPUC does not want to wait to restore the Tuolumne Rivers ecosystem. After record snowfall in December was followed by a dry January, there are renewed concerns of drought. 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. They placed a few dissipators just before the river. James Q. Martin / Restore Hetch Hetchy Show More Show Less 4 of 7 Hetchy Reservoir can store as much as 117 billion gallons for the }, false); Lake Tahoe really isnt part of California water, as the outflow goes to Nevada. Francisco Public Utilities Commissions 26 wholesale customers around the Bay Area rely on the Hetch Hetchy Regional Water Meanwhile, the group Restore Hetch Hetchy is urging the SFPUC to abandon Hetch Hetchy Reservoir. San Francisco voters have demonstrated their opposition to For example, the average storage level for Feb. 7 is usually 65% of capacity for Trinity Dam, but currently its at 31%. The upcountry portion of the System begins with Hetch Hetchy Reservoir in Yosemite National Park. In 2016, a Tuolumne County Superior Court judge dismissed the 2151 River Plaza Drive, Suite 205 a minimum, according to the San Francisco Public Utilities Related articles . From the main road, it's about a 20- to 25-minute drive to the parking area. Love the dashboard! Current conditions of LAKE OR RESERVOIR WATER SURFACE ELEVATION ABOVE NGVD 1929 and RESERVOIR STORAGE are available. Much of the recent inflow was to Hetch Hetchy, which can hold. 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. A .gov website belongs to an official government organization in the 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. To reach Hetch Hetchy, you have to exit Yosemite National Park and re-enter it. Heres where California reservoir levels stand after this weeks rains. 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. 2013, photo, the Hetch Hetchy Reservoir is hazy with smoke . 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. 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. 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. For the first week of February, there was a slight increase for most reservoirs from January amounts. 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. As it is, at first glance, it looks like shasta is at the top because its 28000 instead of 4552. very nice product overall. Thats just another very strong indication visually that its a big water year.. 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. https://cdec.water.ca.gov/dynamicapp/QueryDaily?s=HTH This is a very clear graph and I cannot imagine the hours you have put in while setting it up and doing the maintenance. function resizeframe(){
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. 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). Thank you for a beautiful job. Local reservoir inflows have negative daily flow rates set to zero. A lock ( She has been with SFGATE for more than 10 years. 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. A question: the Historical Avg*, is it the value of year-today or natural year? 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. The Bay Area's main reservoir is up 21 feet. My guess would be that the recent systems have been cold and so they are predominantly dropping snow on the watershed. This is a marimekko (or mekko) graph which may take some time to understand if you arent used to seeing them. All Rights Reserved. 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. Id only be interested in the totals from Oroville and Shasta. In fact, thanks to a little snowmelt, water levels were up for all reservoirs from December to January. A different story is unfolding at Hetch Hetchy reservoir in Yosemite National Park, where water is being released to conserve and restore wildlife. Yes, and why is Twitchell Dam also not listed? Monitoring location 11277500 is associated with a LAKE, RESERVOIR, IMPOUNDMENT in TUOLUMNE COUNTY, CALIFORNIA. I second that request. 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. 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. Also, do they provide inflows and outflows for locations? Lake Oroville. Water data back to 1956 are available online. Hetch Hetchy Reservoir in Yosemite was 69 percent full on Tuesday, 150 percent of normal for this time of year. Thank you for the time and effort in creating the graphs. It seems likely one of those two readings is wrong. Northern California's reservoir levels continued to rise in the week after an atmospheric river slammed the state with torrential rain and high winds. Folsom is like an overflow tank. 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. A 1 week change would be interesting to show on each. 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. 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 information on Isabella has been fluctuating drastically (by a factor of 10!) 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. A wet December produced ample snowfall, which is still sitting at high elevations. What happened to the Hetch Hetchy level? drained by the Tuolumne Ill pass it along to friends. Just in case a large storm hits, that way they dont reach 100% capacity. It was my first time using D3 and it took me a long time to get up to speed. 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. 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. Even with all the rain and floods, still a long way to fill them to capacity. 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. 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. How can I match up other monitoring locations similar to the ones on this Interactive Dashboard? Official websites use .gov "It is unknown how much area of the Feather River and Shasta Lake drainages are impacted by hydrophobic soils.". I recently joined the team with Restore Hetch Hetchy as Engagement & Development Director. . The maximum that the city has put away is 570,000 acre-feet of water. Fish and Wildlife Service that provides an immediate $4 million investment for habitat improvements for fisheries in the Tuolumne River. The remaining 15 percent of water comes from runoff in the Alameda and Peninsula watersheds. Each row represents one reservoir, with bars showing how much of the reservoir is filled (blue) and unfilled (brown). 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. Thats a great suggestion and one that would be particularly helpful! . Only improvement I would suggest is an improvement of the display of the smaller reservoirs so the names are readable. The adopted Plan addresses water quality issues affecting the ecosystem and fisheries of the Bay-Delta system. Your Privacy Choices (Opt Out of Sale/Targeted Ads). And more work is underway. Folsom Lake is letting the water flow out. Jeff, the average changes daily as well. What happened to the Hetch Hetchy level? But I would never have imagined how to put all the important information into a single plot. I realize there we dont want to reservoirs overflowing, but why are we still below historical average? Excellent graphic! For each of the top 8 reservoirs the storage has increased by a total of 217 kaf, however). Share sensitive information only on official, secure websites. Having it here would be great! What rates am I paying? It looks like the red and blue lines are backwards on Folsom. Occasionally the source water will shift to local reservoirs during routine maintenance to the conveyance system. This is an excellent tool you have put together. During most years, there will be a 30-day shut down of the Hetch Hetchy source in the winter months. 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). 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. Previously, Kellie covered dining news and trends, visual arts, events and nightlife for the Arizona Republic, and freelanced for the former Contra Costa Times. Just trying to learn here Thanks so much! a broad meaning that had been previously applied in an There is something strange about the data over the last two days (Jan.17 to Jan. 19): Our reservoirs were alarmingly low. 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). 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. For perspective, water demand across the SFPUC's service area of 2.7 million people was about 205,000 acre-feet last fiscal year. 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. We provide water directly to customers in San Francisco and wholesale through 26 Water agencies in Alameda, Santa Clara, and San Mateo counties. has a graph which shows how the historical avg changes throughout the year (oscillating between ~15000 and ~21000). 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. 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. California snowpack hits highest level this century for March. currently, there is a lot more water coming in than going out. It certainly looks dry at least until the last week in February, he said. Thank you! and maybe another vertical axis to the right of that with reservoir capacity. mandate within Our drinking water comes from a variety of protected sources carefully managed by the SFPUC. //this function is called from the javascript from within the iframe after the contents of iframe are loaded (and after an additional 150ms delay)
The captured water is piped 150 miles to the Bay Area. Official websites use .gov How Fast Are California Reservoirs Filling Up? 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. It could be the 180% of historical average of snowpack, which will be melting in a couple months. Thats a very poor design. Lock 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). Ronald Reagan and George W. Bush. Sacramento CA 95833, Everything about California water that matters, Western States Water Agencies and Districts. One acre-foot is the equivalent of one acre of land covered in one foot of water.