Data have been checked by the reporting agency. As it is, at first glance, it looks like shasta is at the top because its 28000 instead of 4552. very nice product overall. Thanks for taking the time to do that. Super frustrating. generates electricity for the city). Its not possible to see or really interact with the tiniest slivers. Commission. The Hetch Hetchy Reservoir in Yosemite National Park can store up to 117 billion gallons of drinking water that is used for the Hetch Hetchy Regional Water System that provides water for 2.6 . 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 regional water system provides water to 2.4 million people in San Francisco, Santa Clara, Alameda and San Mateo counties. Water is such a fascinating topic and Id hate to have to be a water manager making a decision on how much to release to avoid reservoir flooding. located in a national park and it passed the Raker Act in 1913 to Wapama Falls (moderate) 5 mi (8 km) round-trip; 2 hours. This dashboard provides a bit more detail on the state of each of the reservoirs while also showing an aggregate total. February 21, 2023 - BAWSCA Statement on State Water Resources Control Board'sSchedule for Consideration of a Voluntary Agreement for the Tuolumne River. How come the totals disagree with the cal map graphic? Thanks. 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. Quite an eye opener. 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. It wont be full until Spring snowmelt. Hetchy refers to a valley in the Sierra Nevada and a reservoir that Locked padlock 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. Thats enough to supply the citys service area for perhaps seven years. Reservoir levels rising. The surplus has renewed concerns about San Francisco stockpiling water at the expense of rivers and the fish and wildlife that live there. These graphs will always read low because they represent the percentage of the seasonal average at some point before the end of the season. 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. San Francisco voters have demonstrated their opposition to Required fields are marked *. Didnt realize how bad things were there. A small portion of the citys water comes from local reservoirs. This is an excellent tool you have put together. The judge also noted the provision of the state Should be fixed at some point. Thats a very poor design. Also a little nit. however, Ill update the code to include it soon. 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. 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). Ive looked at reservoir sights for years. 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. How can I apply to SFPUC? Located in the northwest portion of Yosemite National Park, Hetch Love the dashboard! Ive been meaning to search for aquifer levels. 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. An improvement: Could you include a bar for Last year at this date? Emissions must be offset by dedicated conservation programs or renewable energy generation such as wind or solar. https://engaging-data.com/ca-reservoir-level/ 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. Lake Shasta, the state's largest reservoir, rose 2.9 feet and added 31,020 acre-feet of water. Ill pass it along to friends. Secure .gov websites use HTTPS While the long-term voluntary agreement work continues, the SFPUC does not want to wait to restore the Tuolumne Rivers ecosystem. So while that is kind of good news, he said, things start to look more grim after January produced paltry rainfall and, so far, February has also been dry. Thinking more about it. dam and restoring the valley. McClintock bill proposes to improve public access at Hetch Hetchy. The remaining 15 percent of water comes from runoff in the Alameda and Peninsula watersheds. She joined the Chronicle as a data reporter in 2021. It was my first time using D3 and it took me a long time to get up to speed. I wonder why it doesnt work for you. . Twenty of San Kellie has held many leadership roles for the Asian American Journalists Association, including most recently a board member for the San Francisco chapter. 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. It certainly looks dry at least until the last week in February, he said. Most local reservoir inflow timeseries are too short to calculate long-term values. It carried workers and materials for the dam, as well as tourists, postage and other amenities. . Curt, Good point re the colder weather dropping more snow instead of rain at higher elevations this year. The water is delivered by a gravity-based system and aqueduct to One of the most impressive was Hetch Hetchy, which provides drinking water to 2.6 million people in San Francisco and other Bay Area communities. "It was a very healthy shot in the arm. 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. over the past few days. **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 commission plans to decide Nov. 23 whether to formally ask customers to conserve water. During the winter months, they let water out of the reservoirs in anticipation of large storms. The area around Shasta has more volcanic soils that absorb rainfall than the Feather River drainage. a broad meaning that had been previously applied in an Very nice work. I was thinking that it would be interesting to compare inflows and outflows. An official website of the United States government. If you look at the inflow data on the major reservoirs, its pretty flat. Although Hetch Hetchy Reservoir is the most well-known, it stores less than 25% of the system's water. 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. A .gov website belongs to an official government organization in the Part of the lake is on the California side, but it has zero California water impact beyond the immediate Tahoe residents. Here's what that means. 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. California reservoir levels: . 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. 2022 All Rights Reserved. Hetch Hetchy is Monitoring location 11275500. Occasionally the source water will shift to local reservoirs during routine maintenance to the conveyance system. One acre-foot is the equivalent of one acre of land covered in one foot of water. By a large measure, damming and flooding Hetch Hetchy is the most significant damage ever allowed in any of our national parks. Charts from the California Department of Water Resources show conditions at key state reservoirs on Oct. 22 (left) and on Nov. 2 (right). Water data back to 1930 are available online. Its fluctuating between ~107% and ~20% from one hour to the next (reading 107.6 atm). it will be cool if there is a way to track the change since Dec or some such date. 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.. Together, the BAWSCA agencies account for two-thirds of water consumption from the system and pay for two-thirds of its upkeep. ) or https:// means youve safely connected to the .gov website. Is that from melting snow and rain water coming from the mountains and filling it up? The OShaughnessy Dam i s 300 feet tall only medium-sized by todays standards. the map graph doesnt include berryessa. The SFPUC has also raised concerns over the fishery benefits of the States Plan. 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. It seems likely one of those two readings is wrong. It does not meet the California definition of renewable energy. Tracy Barbutes, Freelance / Special to The Chronicle, Heres where California reservoir levels stand after this weeks rains. I notice Briones Reservoir is not on the list. 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. 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). For the higher elevations, more of their water comes directly from snowmelt. The trail takes you to the base of Wapama Falls, passing two smaller waterfalls (during spring) on the way. 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). Lots of possibilities, just curious. 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). That said, most of its outflow makes its way down Feather River (via Rock Creek Reservoir) and ultimately into Orville. I appreciate the information you are providing. Current as of October 03, 2022 | Updated by . Californias largest water agencies, in both the urban and agricultural sectors, have invested in ambitious groundwater banking programs inKern County. I realize there we dont want to reservoirs overflowing, but why are we still below historical average? Id only be interested in the totals from Oroville and Shasta. I love this this site too. It is also the amount of water in a cube that is 352 feet per side (about the length of a football field). The only improvement I would ask you to consider is to allow the Y-axis to be Linear or Log, the latter allowing us to see all the small reservoirs quite easily. In fact, thanks to a little snowmelt, water levels were up for all reservoirs from December to January. That includes the Tuolumne River, which provides water via Hetch Hetchy Reservoir to Bay Area customers. This chart only shows reservoirs filled via natural flow/rainfall. 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 California boosts water deliveries to highest level in years, thanks to storms, California reservoir levels: Charts show water supply across the state, Track water shortages and restrictions across Bay Area. The dam and reservoir are the source for the Hetch Hetchy Aqueduct, which provides water for over . Therefore flood control agencies take the more conservative route and order the release of water. The water transmission system in the Bay Area and Peninsula includes the Bay Division, San Andreas, Sunset Supply, and Crystal Springs pipelines. This dashboard is great! 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. draining the reservoir to court, arguing in 2015 that the Folsom is like an overflow tank. Diamond Valley Lake is a man-made storage reservoir for storing imported water only. Hetchy Reservoir can store as much as 117 billion gallons for the A separate vote would have been Nice! Hetch Hetchy Reservoir in Yosemite was 69 percent full on Tuesday, 150 percent of normal for this time of year. After record snowfall in December was followed by a dry January, there are renewed concerns of drought. Remember, much of the state is still in a drought and so the prudence is warranted.. Restore Hetch Hetchy intends to undo this Great American mistake, and return the valley to Yosemite National Park and all people. 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. Thank you so much for the hard work! 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. This site is a great tool, especially as we try to climb out of these drought years. Steve Ritchie, the San Francisco Public Utilities Commission's assistant general manager for water, said the additional water amounted to roughly 11% of the reservoir's total capacity. and its snowmelt-fed water supply, water from Hetch Hetchy For some strange unknown reason, they are not allowing the lake to fill up. mobilewarn(); Greetings from Mount Laurel New Jersey. She is a University of Washington graduate. The upcountry portion of the System begins with Hetch Hetchy Reservoir in Yosemite National Park. lawsuit, saying Restore Hetch Hetchys arguments were preempted Id love to see how much water is being / has been released from these reservoirs. . 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 question: the Historical Avg*, is it the value of year-today or natural year? This was helpful to project seasonal trends & storm impacts. Could you also show each reservoirs level as a function of time? Turn right on to Hetch Hetchy Road - Evergreen Road and continue another 7.5 miles to the parking area for Hetchy Hetchy Reservoir next to the dam.