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Lake Del Valle
Lake Del Valle is a storage reservoir located southeast of Livermore, in Alameda County, California. It is within Del Valle Regional Park. Lake description The lake is on Arroyo Valle (Spanish for "creek of the valley") in the Diablo Range, and is formed by Del Valle Dam, completed in . The lake and dam are part of the California State Water Project, as part of the South Bay Aqueduct. The lake serves in part as off-stream storage for the South Bay Aqueduct. The capacity of the lake is , however, the lake has a flood storage of . Thus normally stores . The lake is a popular destination for hikers, bikers, and boaters. The Hetch Hetchy Aqueduct passes below the lake, but does not connect to it. The California Office of Environmental Health Hazard Assessment issued fishing advisoryregarding the mercury levels of fish caught from the body of water. Dam description The dam is high and long. Its crest elevation is . The dam contains of earth fill. See also * List of dams a ...
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Alameda County, California
Alameda County ( ) is a List of counties in California, county located in the U.S. state of California. As of the 2020 United States census, 2020 census, the population was 1,682,353, making it the 7th-most populous county in the state and List of the most populous counties in the United States, 21st most populous nationally. The county seat is Oakland, California, Oakland. Alameda County is in the San Francisco Bay Area, occupying much of the East Bay (San Francisco Bay Area), East Bay region. The Spanish language, Spanish word ''alameda'' means either "a grove of poplars...or a tree lined street". The name was originally used to describe the Arroyo de la Alameda; the willow and sycamore trees along the banks of the river reminded the early Spanish explorers of a road lined with trees. Although a strict translation to English might be "Poplar Grove Creek", the name of the principal stream that flows through the county is now simply "Alameda Creek". Alameda County is part of t ...
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California Office Of Environmental Health Hazard Assessment
The Office of Environmental Health Hazard Assessment, commonly referred to as OEHHA (pronounced oh-EEE-ha), is a specialized department within the cabinet-level California Environmental Protection Agency (CalEPA) with responsibility for evaluating health risks from environmental chemical contaminants. OEHHA is the scientific adviser within CalEPA and provides the health effects assessments that assist regulatory decision makers within CalEPA, the California Department of Public Health, and other agencies and non-governmental organizations (see below). This includes assessing health and environmental risks from: * Carcinogens * Reproductive toxicity, Reproductive toxins * Air pollution, Air pollutants * Pesticides * Chemical contaminants in food and water * Chemical exposures in the workplace * Climate change in California In the news Attempted closure In May 2009, Governor Arnold Schwarzenegger proposed to "eliminate and transfer the functions" of OEHHA (and other agencies) a ...
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East Bay Regional Park District
The East Bay Regional Park District (EBRPD) is a Special-purpose district, special district operating in Alameda County, California, Alameda County and Contra Costa County, California, within the East Bay (California), East Bay area of the San Francisco Bay Area. It maintains and operates a system of regional parks which is the largest urban regional park district in the United States. The administrative office is located in Oakland. As of 2020, EBRPD spans with 73 parks and over of trails. Some of these parks are wilderness areas; others include a variety of visitor attractions, with opportunities for human swimming, swimming, boating and camping. The trails are frequently used for non-motorized transportation such as biking, hiking, and horse riding. More than of paved trails (identified as Interpark Regional Trails) through urban areas link the parks together. History A destructive grass fire that broke out in Wildcat Canyon blew west into Berkeley on September 17, 1923, a ...
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California Department Of Water Resources Dams
California () is a U.S. state, state in the Western United States that lies on the West Coast of the United States, Pacific Coast. It borders Oregon to the north, Nevada and Arizona to the east, and shares Mexico–United States border, an international border with the Mexico, Mexican state of Baja California to the south. With almost 40million residents across an area of , it is the List of states and territories of the United States by population, largest state by population and List of U.S. states and territories by area, third-largest by area. Prior to European colonization of the Americas, European colonization, California was one of the most culturally and linguistically diverse areas in pre-Columbian North America. European exploration in the 16th and 17th centuries led to the colonization by the Spanish Empire. The area became a part of Mexico in 1821, following Mexican War of Independence, its successful war for independence, but Mexican Cession, was ceded to the U ...
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Dams In California
Following is a list of dams and reservoirs in California in a sortable table. There are over 1,400 named dams and 1,300 named reservoirs in the state of California. Dams in service :''Please add to this list from the below sources.'' Former dams * Baldwin Hills Reservoir (1947–1963) - failed December 14, 1963 * St. Francis Dam (1926–1928) - failed March 12, 1928 * San Clemente Dam - intentionally removed in 2015-2016 because of environmental issues * Van Norman Dams (1911–1971) - failed February 9, 1971, in 1971 San Fernando earthquake Proposed dams * Ah Pah Dam (defunct) * Auburn Dam (defunct) * Centennial Dam * Sites Reservoir * Temperance Flat Dam See also *California State Water Project * List of dam removals in California *List of lakes in California *List of largest reservoirs of California *List of power stations in California *List of the tallest dams in the United States * List of United States Bureau of Reclamation dams *Water in California California ...
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Reservoirs In Alameda County, California
A reservoir (; ) is an enlarged lake behind a dam, usually built to store fresh water, often doubling for hydroelectric power generation. Reservoirs are created by controlling a watercourse that drains an existing body of water, interrupting a watercourse to form an embayment within it, excavating, or building any number of retaining walls or levees to enclose any area to store water. Types Dammed valleys Dammed reservoirs are artificial lakes created and controlled by a dam constructed across a valley and rely on the natural topography to provide most of the basin of the reservoir. These reservoirs can either be ''on-stream reservoirs'', which are located on the original streambed of the downstream river and are filled by creeks, rivers or rainwater that runs off the surrounding forested catchments, or ''off-stream reservoirs'', which receive diverted water from a nearby stream or aqueduct or pipeline water from other on-stream reservoirs. Dams are typically loca ...
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Oakland Tribune
The ''Oakland Tribune'' was a daily newspaper published in Oakland, California, and a predecessor of the '' East Bay Times''. It was published by the Bay Area News Group (BANG), a subsidiary of MediaNews Group. Founded in 1874, the ''Tribune'' rose to become an influential daily newspaper. With the decline of print media, in 2016, the paper announced that the ''Tribune'', along with its owner's other newspapers in the East Bay, would be folded into a new newspaper titled the ''East Bay Times'' starting April 5, 2016. The former nameplates of the consolidated newspapers will continue to be published every Friday as weekly community supplements. ''Oakland Voices'' is also a successor of the ''Tribune'', developing out of a collaboration with the Maynard Institute for Journalism Education Origin The ''Tribune'' was founded February 21, 1874, by George Staniford and Benet A. Dewes. The ''Oakland Daily Tribune'' was first printed at 468 Ninth St. as a 4-page, 3-column newspaper, 6 ...
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List Of Lakes In The San Francisco Bay Area
This list of lakes in the San Francisco Bay Area groups lakes, ponds, and reservoirs by county. Numbers in parentheses are Geographic Names Information System feature ids. Alameda County, California, Alameda County * Almond Reservoir () * Berryman Reservoir () * Bethany Reservoir () * Calaveras Reservoir () - partly in Santa Clara County. * Central Reservoir () * Lake Chabot () * Cull Canyon Lake () * Lake Del Valle () * Dingee Reservoir () * Don Castro Reservoir () * Lake Elizabeth (Fremont, California), Lake Elizabeth () * Frick Lake () * Frog Pond () * Heron Pond () * Jordan Pond () * The Lagoon () * Lake Merritt () * Middlefield Reservoir () * Mission Reservoir () * Newt Pond () * Niles Reservoir () * Patterson Reservoir () * Reservoir Number One () * Reservoir Number Two () * San Antonio Reservoir (Alameda County), San Antonio Reservoir () * Seneca Reservoir () * South Reservoir () * Swimming Lagoon () * Lake Temescal () * Thirtyninth Avenue Reservoir () * Tule Pond () * Ty ...
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List Of Lakes In California
There are more than 3,000 named lakes, reservoirs, and dry lakes in the U.S. state of California. Largest lakes In terms of area covered, the largest lake in California is the Salton Sea, a lake formed in 1905 which is now saline. It occupies in the southeast corner of the state, but because it is shallow it only holds about of water. Tulare Lake in the San Joaquin Valley was larger, at approximately , until it was drained during the later years of the nineteenth century. In terms of volume, the largest lake on the list is Lake Tahoe, located on the California–Nevada border. It holds roughly of water. It is also the largest freshwater lake by area, at , and the deepest lake, with a maximum depth of . Among freshwater lakes entirely contained within the state, the largest by area is Clear Lake, which covers . Many of California's large lakes are actually reservoirs: artificial bodies of fresh water. In terms of both area and volume, the largest of these is ...
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List Of Dams And Reservoirs In California
Following is a list of dams and reservoirs in California in a sortable table. There are over 1,400 named dams and 1,300 named reservoirs in the state of California. Dams in service :''Please add to this list from the below sources.'' Former dams * Baldwin Hills Reservoir (1947–1963) - failed December 14, 1963 * St. Francis Dam (1926–1928) - failed March 12, 1928 * San Clemente Dam - intentionally removed in 2015-2016 because of environmental issues * Van Norman Dams (1911–1971) - failed February 9, 1971, in 1971 San Fernando earthquake Proposed dams * Ah Pah Dam (defunct) * Auburn Dam (defunct) * Centennial Dam * Sites Reservoir * Temperance Flat Dam See also * California State Water Project * List of dam removals in California *List of lakes in California * List of largest reservoirs of California *List of power stations in California *List of the tallest dams in the United States * List of United States Bureau of Reclamation dams *Water in California Califor ...
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Hetch Hetchy Aqueduct
Hetch Hetchy is a valley, reservoir, and water system in California in the United States. The glacial Hetch Hetchy Valley lies in the northwestern part of Yosemite National Park and is drained by the Tuolumne River. For thousands of years before the arrival of settlers from the United States in the 1850s, the valley was inhabited by Native Americans who practiced subsistence hunting-gathering. During the late 19th century, the valley was renowned for its natural beauty – often compared to that of Yosemite Valley – but also targeted for the development of water supply for irrigation and municipal interests. The controversy over damming Hetch Hetchy became mired in the political issues of the day. The law authorizing the dam passed Congress on December 7, 1913. In 1923, the O'Shaughnessy Dam was completed on the Tuolumne River, flooding the entire valley under the Hetch Hetchy Reservoir. The dam and reservoir are the centerpiece of the Hetch Hetchy Project, which in 1934 beg ...
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Reservoir
A reservoir (; ) is an enlarged lake behind a dam, usually built to water storage, store fresh water, often doubling for hydroelectric power generation. Reservoirs are created by controlling a watercourse that drains an existing body of water, interrupting a watercourse to form an Bay, embayment within it, excavating, or building any number of retaining walls or levees to enclose any area to store water. Types Dammed valleys Dammed reservoirs are artificial lakes created and controlled by a dam constructed across a valley and rely on the natural topography to provide most of the basin of the reservoir. These reservoirs can either be ''on-stream reservoirs'', which are located on the original streambed of the downstream river and are filled by stream, creeks, rivers or rainwater that surface runoff, runs off the surrounding forested catchments, or ''off-stream reservoirs'', which receive water diversion, diverted water from a nearby stream or aqueduct (water supply), aq ...
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