The Santa Clara Valley Water District built the Calero Dam during the Great Depression, completing it in 1935 after acquiring land as the Santa Clara Valley Water Conservation District. The reservoirs, which were constructed in the 1930s and 1950s for water conservation (not flood protection) catch storm runoff that otherwise would flow into San Francisco Bay. If the map is unavailable, you can find daily information on water levels for Californian reservoirs by clicking here. It lies about two miles from the now closed New Almaden Mines, once one of the largest mercury producing mines in the Americas, and still feels the effects of the old work, particularly during large runoff events when mercury containing sediments from mine wastes get into the water from the mining areas. Telemetered measurement device data used for calculating water rights diversions, Reopening buildings following an extended shutdown, Bay Area Regional Reliability Partnership, Groundwater Production Charge-Setting Process 2020-21, Surface Water Charge-Setting Process 2020-21, Flood Control Benefit Assessments Staff Report, Stream, reservoir, precipitation gauge data, Mobile Lab To Improve Farm Irrigation Efficiency, *Safe, Clean Water and Natural Flood Protection Program, Priority A: Ensure a Safe, Reliable Water Supply, Priority B: Reduce Toxins, Hazards and Contaminants in our Waterways, Priority C: Protect our Water Supply from Earthquakes and Natural Disasters, Priority D: Restore Wildlife Habitat and Provide Open Space, Priority E: Provide Flood Protection to Homes, Businesses, Schools and Highways, Other Capital Flood Protection Projects and Clean, Safe Creeks Grants Projects, Safe, Clean Water Program: Independent Monitoring Committee, Calabazas Creek Bank Rehabilitation Project, FAHCE: Fish and Aquatic Habitat Collaborative Effort, Palo Alto Flood Basin Tide Gate Structure Replacement Project, Lower Penitencia Creek Improvements Project, San Francisquito Creek: Bay to Highway 101, Saratoga Creek Hazard Tree Removal and Restoration Project, Sunnyvale East and West Channels Flood Protection*, Habitats & Trails Grants and Partnerships*, Pollution Prevention Partnerships & Grants*, Cross Valley and Calero Pipeline Inspection and Rehabilitation Project, Main Ave. & Madrone Pipelines Restoration*, Rinconada Water Treatment Plant Reliability Improvement, Water Supply Infrastructure Implementation Projects, Public Trails Policy Criteria and Guidance, 2021 Santa Clara Valley Water District Calendar/ Fiscal Year 2020 Annual Report, Safe, Clean Water Program Independent Monitoring Committee, Board of Directors Annual Performance Reports, Quarterly Performance Reports to the Board of Directors, Purified Water Program - Public-Private Partnerships (P3), Permits for Working on District Land or Easement, Guidelines and Standards for Land Use Near Streams, Inundation Map of Hypothetical Fair Weather Failure of Almaden Dam, Inundation Map of Hypothetical Inflow Design Flood Failure of Almaden Dam, Anderson Dam Seismic Retrofit project page, Inundation Map of Hypothetical Fair Weather Failure of Calero Dam, Inundation Map of Hypothetical Fair Weather Failure of Calero Auxiliary Dam, Inundation Map of Hypothetical Inflow Design Flood Failure of Calero Dam and Calero Auxiliary Dam, Inundation Map of Hypothetical Fair Weather Failure of Chesbro Dam, Inundation Map of Hypothetical Inflow Design Flood Failure of Chesbro Dam, Inundation Map of Hypothetical Fair Weather Failure of Guadalupe Dam, Inundation Map of Hypothetical Inflow Design Flood Failure of Guadalupe Dam, Inundation Map of Hypothetical Fair Weather Failure of Stevens Creek Dam, Inundation Map of Hypothetical Fair Weather Failure of Uvas Dam, Inundation Map of Hypothetical Inflow Design Flood Failure of Uvas Dam, Valley Water celebrates creek clean up volunteers and water ambassadors, Valley Water continued to serve the community during a challenging 2020. Anderson Reservoir is the largest of the 10 water district reservoirs and provides a reliable supply of water to Santa Clara County. Valley Water operates 10 reservoirs in Santa Clara County. This 1,250 acre reservoir is the main feature of the 3,144-acre Anderson Park. Guadalupe Reservoir, which can store about 3,415 acre-feet of water, has a critical problem of extensive mercury contamination. Vasona Lake Dam and Reservoir is one of six original reservoirs approved by the voters in 1934. It has a total storage capacity of 89,073 acre-feet (one acre-foot is 325,851 gallons of water, enough to serve two households of five for one year). Waterway Menus Valley Water has created a website to comply with Section 933(b)(4) of California Code of Regulations, Title 23, Division 3., Chapter 2.8, which was an outcome of California Senate Bill No. Reconfigure the spillway as the result of potential findings from the reservoir's future probable maximum flood investigation. A storage restriction of about 55 feet below the dam crest has been put in place to protect the public, reducing the allowed storage capacity to 52,553 acre-feet. Map Overlays. Anderson Dam was built in 1950 and named after the key founder and first president of the water district, Leroy Anderson. The elevation-storage rating curve used to produce the storage hydrograph is made of two segments: (1) the segment up to the conservation pool top (below the red line) is based on measured data, and (2) the segment in the flood pool (above the red line) is an extrapolation from the first segment and shouldn't be relied upon for flood storage information. The Guadalupe Dam, meanwhile, will soon be the subject of a seismic upgrade to shore up the dam after a 2011 engineering study found it to be a risk during a large earthquake. Correct ongoing operation and maintenance issues to aging hydraulic lines, valves and energy dissipaters. ... Anderson Island, WA 98303 Give us a Call (253) 432-7285. 24: Record flood is in progress. Army Corps of Engineers, New Orleans District. Inundation Map of Hypothetical Inflow Design Flood Failure of Uvas Dam (2019) (index map). Policies and Notices, U.S. Department of the Interior | Anderson Reservoir is the largest of the 10 water district reservoirs and provides a reliable supply of water to Santa Clara County. Inundation Maps Anderson Reservoir is currently operated to reduce the chance of the reservoir level exceeding its storage limit of 58 percent, set by the California Division of Safety of Dams. Water level for the lakes and reservoirs listed below Click Here. One of the true gems of the Idaho reservoir system is Anderson Ranch Reservoir. Initially, the dam was referred to by different names, primarily "Windy Point Dam," because the location of the proposed dam was near an obscure spur known as Windy Point. 1/27/21 | 2:58 AM: Valley Water is monitoring the storms. Elmer J. Chesbro was the president of the South Santa Clara Valley Water Conservation District at the time of the construction of Chesbro dam and reservoir in 1955. For current project information, see the Anderson Dam Seismic Retrofit project page. Major power station is downtown Anderson is affected above 25 feet. Completed along the South Fork of the Boise River in 1950, this project provides irrigation water for local Southwest Idaho farms, with hydroelectric power generation a secondary purpose. for this site provided through a cooperative program with the U. S. The observation data shown below is from each lake's master gauge. Stevens Creek was originally known as Arroyo de San José Cupertino. The Ordinary High Water Level (OHWL) is a term that many lake, wetland, and river property owners hear, but it is often misunderstood. Lake Oroville Water Level including historical chart. The mission of Lake Josephine Riviera Water is to insure public health and protection of property by providing sufficient quantities of safe and economical water for drinking, domestic use and fire protection. Inundation Map of Hypothetical Fair Weather Failure of Almaden Dam (2019) (index map) Water levels within the reservoir fluctuate by as much as 20 metres annually and are constantly changing due to inflow and the requirements for water release at Hugh Keenleyside Dam. MORGAN HILL (KPIX 5) — South Bay water officials are urgently trying to lower a reservoir to reduce pressure on a shaky dam. Regardless of what is posted here, if you observe a green paint-like scum or bloom on a lake follow the recommendations listed at the warning level. In 1996, Lexington Dam was renamed for James J. Lenihan, the Santa Clara Valley Water District's longest-serving director with 37 years of service. However, project improvements are on hold until Valley Water completes improvements at the Anderson, Calero and Guadalupe dams. Water flows down the dam spillway and then over rocks to create a waterfall at Anderson Lake Saturday, Feb. 18, 2017, in Morgan Hill, … Inundation Map of Hypothetical Fair Weather Failure of Guadalupe Dam (2019) (index map) Inundation Map of Hypothetical Fair Weather Failure of Chesbro Dam (2019) (index map) The reservoir … Inundation Map of Hypothetical Fair Weather Failure of Calero Dam (2019) (index map), Inundation Map of Hypothetical Fair Weather Failure of Calero Auxiliary Dam (2019) (index map), Inundation Map of Hypothetical Inflow Design Flood Failure of Calero Dam and Calero Auxiliary Dam (2019). The district then distributes the water to water retailers to sell to the county’s 1.8 million residents. NOAA water level observations are available at specific locations, as described on the Monitoring Network page or as a lake-wide average. Stay up-to-date with Santa Clara Valley Water District, Report water waste, homeless encampments, or other problems to Valley Water >>, © 2020 Santa Clara Valley Water District. Inundation Map of Hypothetical Inflow Design Flood Failure of Guadalupe Dam (2019) (index map). You can also use "Access Valley Water" to submit questions, complaints or compliments directly from your computer to a water district staff person who can help you. Stevens Creek Reservoir is located on Stevens Creek about two miles southwest of Cupertino. In 2005, a seismic stability evaluation for the dam halted the planning phase and while the findings in 2012 indicated the embankment is stable, the dam will still require work to ensure its long term reliability. Take care, as water levels can change over 24 hours. Albert August Vollmer, who came to the area in 1887, named the area after a pony he had as a child. At or Below Low Water Threshold Last map update: 02/03/2021 at 10:23:27 am EST 02/03/2021 at 15:23:27 UTC What is UTC time? This restriction is a safety measure that is in effect because of the dam’s seismic deficiencies. State of California. Today, the reservoir’s storage is nearly 35 percent of capacity. Inundation Map of Hypothetical Inflow Design Flood Failure of Chesbro Dam (2019) (index map). In 2000, the water district launched the Almaden Dam Improvements Project to address sediment accumulation at the dam's intake structure and correct aging outlet works infrastructure. Each vessel must pass a vessel inspection prior to launch, make sure your vessel is cleaned, drained and dry. General information about the Anderson Dam and Reservoir. The dam was completed in 1935 and new gates were installed in 1997. FOIA 1.2   1.06 sdww02. The 2.2-miles-long reservoir can store 9,934 acre-feet of water. The reservoir capacity is 495 acre-feet. Inundation Map of Hypothetical Fair Weather Failure of Stevens Creek Dam (2019) (index map). Valley Water has a number of water rights associated with its reservoirs and stream diversions. The Coyote Reservoir is located on the former Rancho San Ysidro, a cattle ranch that belonged to Ygnacio Ortega in the early 1800s. Great Lakes Water Level Observations. The dam was constructed in 1952. Introducing The Next Generation of USGS Water Data for the Nation, Summary of all available data for this site, Instantaneous-data availability statement. Impounding Coyote Creek, Anderson Reservoir was completed in 1950 as a water source for Santa Clara County, California. Inundation Map of Hypothetical Fair Weather Failure of Uvas Dam (2019) (index map) It has a total storage capacity of 89,073 acre-feet (one acre-foot is 325,851 gallons of water, enough to serve two households of five for one year). Preliminary findings of the study indicate that part of the dam would be seismically unstable during a very large, 7.25-magnitude earthquake occurring on the Calaveras Fault approximately two kilometers of the dam. The Spanish explorer Juan Bautista de Anza named the river Arroyo del Coyote after coyotes seen during his journey. These lake-wide averages are based on a select set of U.S. and Canadian station data as determined by the Coordinating Committee. U.S. Geological Survey The 240-foot earthen dam on the Anderson Reservoir in Santa Clara County poses too great of a risk, the Federal Energy Regulatory Commission has decided, and the lake must be drained by Oct. 1. SRs 109, 32, 9 and I-69 could be the only roads open over the White River. * Both are located along Hicks Creek on Guadalupe Creek, a tributary of the Guadalupe River. Date Height of Snow Water Density April 1 Average Content Shasta River Basin 1 Parks Creek 6,700 Scheduled for measurement by Mount Shasta Ranger District 3 Sweetwater 5,850 Scheduled for measurement by Mount Shasta Ranger District Scott River Basin 5 Middle Boulder 1 6,600 Scheduled for measurement by Salmon/Scott River Ranger District 311 Middle … Anderson Ranch Reservoir in Elmore County is 4,607.7 acres. Uvas Dam was a part of the South Santa Clara Valley Water Conservation District. Privacy Policy/Investor Disclosure | Sitemap. Please click on the image or this link to access the up-to-date interactive map. The reservoirs do also provide incidental flood protection by containing runoff early in the rainfall season, serve recreational needs, and benefit the environment by storing water to maintain flow in the creeks. Data County Boundaries. The California Department of Water Vasona dam and reservoir is located on Los Gatos Creek within the town of Los Gatos. Lake Level Projections. Water-level fluctuations associated with climate changes are a response to variations in precipitation-evaporation (P-E) over the watershed. Inundation Map of Hypothetical Inflow Design Flood Failure of Almaden Dam (2019) (index map). Lake Secession is a eutrophic (fertile) lake, which provides a popular sport fishery for warm-water game fish. Able to store 1,590-acre feet of water, the reservoir, located 12 mile south of San Jose, produces about 4 percent of the district's local water supply and also provides water for groundwater recharge. Disclaimer. If you observe a bloom in a Jefferson County lake, please report it by calling 360-385-9444. Anderson Regional Joint Water System, Hartwell Lake Filter Plant is committed to providing residents with a safe and reliable supply of high-quality drinking water. 1 (CESAS) Hartwell Mica Mine Dam (HARTWELL MICA MINE COMPANY) Anderson Lake, also known as Anderson Reservoir, is an artificial lake in Santa Clara County, California, United States, near Morgan Hill.The reservoir is formed by the damming of Coyote Creek just below its confluence with Las Animas Creek. The 2.5-miles-long reservoir is the second-largest water district reservoir. After Hours Emergency: (253) 884-4808. Please note: the image above is provided as a sample only, and indicates water levels in Californian reservoirs as of November 26th, 2018. URL: https://waterdata.usgs.gov/nwis/uv? Photo Credit Sam Mills. This voluntary restriction exceeds the 45-foot restriction approved by the regulatory agencies (California Division of Safety of Dams and the Federal Energy Regulatory Commission) and was instituted by the District in response to additional findings during the design phase of the Anderson Dam Seismic Retrofit Project (ADSRP). The reservoir's capacity is 9,835 acre-feet of water. Its capacity is 23,244 acre-feet of water. The Spanish name for grapes, "uvas," is preserved in a number of place names, all apparently referring to the abundance of wild grapes. Lake conditions can change rapidly and lake status may have changed since the last sample was taken. The dam and reservoir is one of the six original reservoirs approved for construction by voters in May 1934. WFO Boundary. A long, deep natural gorge located three miles east of U.S. 101 in Morgan Hill provided a suitable dam site. Subject to safety regulations by the State Division of Safety and Dams (DSOD), Almaden Dam is currently considered a high-hazard dam due to the number of people who live in the potential flood zone downstream and the extensive amount of damage that a flood could cause in case of a dam breach. The reservoir is impaired because of its level of toxicity. On Monday, amid a dry winter, Anderson Reservoir was just 29% full. Visit our Get Flood Ready page for resources and information. The project, currently in design phase, will: In 2016, Valley Water's Board of Directors approved a consultant amendment to perform improvements to the Almaden-Calero Canal in addition to the already approved consultant agreement for improvements at the Almaden Dam. Level Base: MSL Full Pool: 660.00 feet Flood Pool: 665.00 feet: Change Since Yesterday: 0.05 Feet Level Controlled by: U.S. Army Corps of Engineers Dam Name: Hartwell - Saddle Dike No. Its surface area is 283 acres*. 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