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Briones Reservoir
Briones Reservoir is an open cut terminal water storage reservoir owned and operated by the East Bay Municipal Utility District (EBMUD). It is located in the hills northeast of Orinda, California. It is formed by Briones Dam, an earthen dam completed in 1964. The reservoir is the largest of EBMUD’s five East Bay terminal reservoirs with a total capacity of , and it has a total watershed of 8.59 square miles (22 km²).
==Water Source==
The Briones Reservoir has two sources for its water. Its watershed of 22 km² which includes Bear Creek. Bear Creek once ran down the valley where the reservoir is currently located and still enters the lake in its most Eastern point.〔ite Bay Nature. Apr-Jun2014, Vol. 14 Issue 2, p16-16. 1/3p.〕 Another major, and more important, water source for the Briones Reservoir is imports from the Briones Diversion Works near Orinda through the Briones Aqueduct. This Aqueduct is a 7-foot, 6-inch steel pipe, operated by four pumps that can deliver up to 60 million gallons a day.〔EAST BAY MUNICIPAL UTILITY DISTRICT WATER SYSTEM REVENUE REFUNDING BONDS, SERIES 2012B https://www.ebmud.com/sites/default/files/pdfs/water-system-revenue-refunding-bonds-series-2009a_2.pdf〕 This is water that originates from EDMUD’s biggest water source: the Mokelumne River. Water drains out of the Briones Reservoir into the San Pablo Reservoir, which is located just in the lower part of the valley. From here, the water is taken into a pumping plant in Kensington.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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