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Map of the San Fernando Valley in 1880 by William Hammond Hall. A 56,000-acre (227 km 2) parcel of De Celis's property north of the great furrow was purchased in 1874 by state senator Charles Maclay of Santa Clara and his partner, George K. Porter of San Francisco. Porter's cousin Benjamin F. Porter subsequently purchased portions of Porter and ...
Unknown to the public, the initial water would be used to irrigate the San Fernando Valley to the north, which was not at the time a part of the city. [2]: 74–76 [11]: 152 [12] From a hydrological point of view, the San Fernando Valley was ideal: its aquifer could serve as free water storage without evaporation.
The San Fernando Valley, [1] known locally as the Valley, [2] [3] is an urbanized valley in Los Angeles County, California.Situated northwards of the Los Angeles Basin, it comprises a large portion of Los Angeles, the incorporated cities of Burbank, Calabasas, Glendale, Hidden Hills and San Fernando, plus several unincorporated areas. [4]
Remains of wells built of mission tiles around 1800 by Tongva Indians from the Mission San Fernando Rey de España to provide water to the mission; taken over by the Department of Water and Power in 1919, the 6-acre (24,000 m 2) well site is the oldest existing source of water supply in the city, other than the Los Angeles River [4]
The Van Norman Dams, also known as the San Fernando Dams, were the terminus of the Los Angeles Aqueduct, supplying about 80 percent of Los Angeles' water, [5] until they were damaged in the 1971 San Fernando earthquake and were subsequently decommissioned due to the inherent instability of the site and their location directly above heavily populated areas.
The historic natural lake was fed by springs of upwelling groundwater from the Los Angeles River and San Fernando Valley subterranean aquifers. Late 19th and 20th century L. A. DWP well extraction and 1930s concrete river channelization lowered the water table, and currently community wells at the lake's edges maintain the water level. [8]
According to an August 2013 article in the Los Angeles Times, the water in the river today is largely "industrial and residential discharge," which originates from the "two giant pipes that collect the sewage from the homes of 800,000 San Fernando Valley residents" that lead to the Tillman Water Reclamation Plant, "before crashing over a man ...
Detail of the southeastern San Fernando Valley, from a manuscript map of Los Angeles and San Bernardino topography, 1880, showing the Rancho Cahuenga inholding within Rancho Providencia (shaded area, added). In 1834, Vicente de la Ossa (January 6, 1808 - 1861) was elected as Los Angeles councilman and served in this capacity for two years.