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Central Valley Project
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=== Offstream storage and aqueducts === [[File:Wfm san luis reservoir landsat.jpg|thumb|right|Satellite photo of San Luis Reservoir and O'Neill Forebay]] The CVP has a significant amount of facilities for storing and transporting water on the west side of the San Joaquin Valley, in the foothills of the [[California Coast Ranges]]. The West San Joaquin Division and San Luis Unit consist of several major facilities that are shared with the federal [[California State Water Project]] (SWP).<ref name="sanluis">{{cite web |url=http://www.usbr.gov/projects/Project.jsp?proj_Name=San%20Luis%20Unit%20Project |title=San Luis Unit |publisher=U.S. Bureau of Reclamation |work=Central Valley Project |date=2009-06-17 |access-date=2010-01-16 |archive-url=https://web.archive.org/web/20111112091225/http://www.usbr.gov/projects/Project.jsp?proj_Name=San%20Luis%20Unit%20Project |archive-date=November 12, 2011 |url-status=dead }}</ref> [[San Luis Dam]] (or B.F. Sisk Dam) is the largest storage facility, holding {{convert|2000000|acre.ft|dam3}} of water.<ref name="sanluis"/><ref>{{cite web |url=http://www.usbr.gov/projects/Facility.jsp?fac_Name=B%20F%20Sisk%20Dam |title=B.F. Sisk Dam |publisher=U.S. Bureau of Reclamation |work=San Luis Unit |date=2009-08-31 |access-date=2010-01-16}}</ref> Although called an offstream storage reservoir by USBR, the reservoir floods part of the San Luis Creek valley. San Luis Creek, however, is not the primary water source for the reservoir. Downstream of San Luis Reservoir is [[O'Neill Forebay]], which is intersected by the [[Delta-Mendota Canal]], a separate CVP facility.<ref>{{cite web |url=http://www.usbr.gov/projects/Facility.jsp?fac_Name=O`Neill%20Dam |title=O'Neill Dam |publisher=U.S. Bureau of Reclamation |work=San Luis Unit |date=2009-05-28 |access-date=2010-01-16 |archive-url=https://web.archive.org/web/20160303230050/http://www.usbr.gov/projects/Facility.jsp?fac_Name=O%60Neill%20Dam |archive-date=March 3, 2016 |url-status=dead }}</ref> Water is pumped from the canal into the Forebay<ref>{{cite web |url=http://www.usbr.gov/projects/Powerplant.jsp?fac_Name=O%60Neill%20Powerplant |title=O'Neill Powerplant |publisher=U.S. Bureau of Reclamation |work=San Luis Unit |date=2009-05-13 |access-date=2010-01-16 |archive-date=June 13, 2011 |archive-url=https://web.archive.org/web/20110613140028/http://www.usbr.gov/projects/Powerplant.jsp?fac_Name=O%60Neill%20Powerplant |url-status=dead }}</ref> and uphill into San Luis Reservoir, which functions as an additional water source during dry periods.<ref name="sanluis"/> Water released from San Luis and O'Neill reservoirs feeds into the San Luis Canal, the federally built section of the [[California Aqueduct]], which carries both CVP and SWP water. The San Luis Canal terminates at [[Kettleman City, California|Kettleman City]], where it connects with the state-built section of the California Aqueduct. With a capacity of {{convert|13100|cuft/s|m3/s}}, it is one of the largest irrigation canals in the United States.<ref name="sanluis"/> The Coalinga Canal (operated for USBR by the [[Westlands Water District]]) branches off the San Luis Canal towards the [[Coalinga, California|Coalinga]] area. A pair of separate dams, Los Baños Detention Dam and Little Panoche Detention Dam, provide flood control in the [[Los Baños, California|Los Baños]] area.<ref name="sanluis"/> The San Luis Drain was a separate project by USBR in an attempt to keep contaminated irrigation drainage water out of the San Joaquin River, emptying into [[Kesterson Reservoir]] where the water would evaporate or seep into the ground. Because of environmental concerns, the system was never completed.<ref name="sanluis"/> The CVP also operates a San Felipe Division to supply water to {{convert|63500|acre}} of land in the [[Santa Clara Valley]] west of the Coast Ranges.<ref name="sanfelipe">{{cite web |url=http://www.usbr.gov/projects/Project.jsp?proj_Name=San%20Felipe%20Division%20Project |title=San Felipe Division |publisher=U.S. Bureau of Reclamation |work=Central Valley Project |date=2009-06-17 |access-date=2010-01-16 |archive-date=September 21, 2012 |archive-url=https://web.archive.org/web/20120921004217/http://www.usbr.gov/projects/Project.jsp?proj_Name=San%20Felipe%20Division%20Project |url-status=dead }}</ref> [[San Justo Dam]] stores water diverted from San Luis Reservoir through the Pacheco Tunnel and Hollister Conduit, which travel through the [[Diablo Range]].<ref>{{cite web |url=http://www.usbr.gov/projects/Facility.jsp?fac_Name=San%20Justo%20Dam |title=San Justo Dam |publisher=U.S. Bureau of Reclamation |work=San Felipe Unit |date=2009-05-13 |access-date=2010-01-16 |archive-date=June 13, 2011 |archive-url=https://web.archive.org/web/20110613140053/http://www.usbr.gov/projects/Facility.jsp?fac_Name=San%20Justo%20Dam |url-status=dead }}</ref> A separate canal, the Santa Clara Tunnel and Conduit, carries water to the Santa Clara Valley.<ref name="sanfelipe"/>
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