AgdaPkt 2010-01-25 clsd and regular

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6.2A Page 13 (Peninsula) areas, as well as provide water to replenish the Crystal Springs and San Andreas Reservoirs in San Mateo County. The BDPLs serve three functions: (1) delivering water to customers along the pipelines; (2) transmitting water to customers in San Francisco and on the Peninsula downstream of the pipelines; and (3) transmitting water from the water system to local storage reservoirs. The four pipelines were built between 1925 and 1973. As the system ages, its reliability decreases and the risk of failure increases. The SFPUC has determined that these aging pipelines were built using now-outdated construction materials and are at risk of failure as they approach the end of their useful life. The objective of BDPL No.5 is to improve the water delivery and seismic reliability of the BDPL system by allowing existing BDPL facilities to be taken out of service for maintenance while continuing to meet the water supply purchase requests of SFPUC customers through the year 2018. Without the Project, there would be no other source of redundancy to compensate for the loss of any of the existing pipelines if they were damaged or otherwise taken out of service. Therefore, the Project objectives include: . To provide a new, seismically reliable pipeline between Mission Boulevard (near the Irvington Tunnel) in Fremont and the Pulgas Tunnel Portal in unincorporated San Mateo County near Redwood City, so that the new pipeline provides a higher probability of being operable and able to contribute toward system delivery of 229 million gallons per day ("mgd"), the estimated average winter-month demand, within 24 hours following a design seismic event; . To size and configure the BDPL transmission system for both the transmission of water across the Bay and for distribution to customers west of Mission Boulevard in Fremont and to replenish local reservoirs; and . To contribute toward meeting the estimated average annual demand in 2030 of up to 300 mgd under the conditions of one planned shutdown of a major facility for maintenance concurrent with one unplanned facility outage due to a natural disaster, emergency, or facility failure or upset. In addition, the proposed Project is part of the SFPUC's Water System Improvement Program ("WSIP") adopted by this Commission on October 30, 2008 by its Resolution No. 08-0200. The WSIP consists of over 70 local and regional facility improvement projects that would increase the ability of the SFPUC's water supply system to withstand major seismic events and prolonged droughts and to meet estimated water-purchase requests in the service areas through the year 2018. The regional water system consists of water conveyance, treatment, and distribution facilities, and delivers water to retail and wholesale customers. The BDPL No.5 Project also serves to meet several of the WSIP goals and objectives for the overall regional water system by helping to (1) upgrade the seismic standards of critical facilities to improve seismic reliability and to reduce the system's vulnerability to earthquakes; (2) improve water delivery reliability under a variety of operating c~Il.~~~~9P.~.l::lyj~P~9.yi.~g.().Y.~I~U.9.pe~~iCl.p'~..Qf~b.~..$y~t~m;..~n4(3.)............... . . :..contribute to..meetirigprojeded water supplydemanduthrough 2018 dtirin!:rbothii6rt~dtought arid" ... drought periods. c. Environmental Review 1. Water System Improvement Project Environmental Impact Report On October 30,2008, the SFPUC adopted the regional Water System Improvement Program (the "WSIP") (originally identified as the IIPhased WSIP Variant"). The WSIP will improve the regional system with respect to water quality, seismic response, water delivery and water supply to meet water delivery needs in the service area through the year 2018 and establish level of 3