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<br />II , . , ,- <br />I A'l"1'ACBIIEN'l 'D' <br />Technical Memorandum <br />To: Peter Ingram, RWC P!1blic Works Services¡)irector <br />From: John.8. Wbitcomb, PhD, Consultant <br />Date: August IS, 2002 <br />Subject: RWC Water Supply Reliability <br />Tlùs technical memorandum p~nts myðl!lÛY~is of the water supply and demand balance fur <br />the City of Redwood City (R.WC) water system, AssCS$ing water do:mandlsupply reliAbility can <br />be useful in supporting a metyof wat~ plílnningfuru:tions including: <br /> a messing themerits.of an expanded recycled wlitctSys«:m in R.edwood Shores and <br /> su~ucnt proposed phase~ in the Oreater:Bayfront and Central Redwood City. <br /> 0 Detennining the availability of water for new developments under new st¡¡!e Jaws adopted <br /> via Senate Bms 221 and (j10. <br /> 0 Assessing the need for expanded water conservation progtaim and/or öther new water <br /> supplies. <br /> a Understanding and øeveloping dmll8ht response actions to match the risk accepted by the <br /> City in píll'Veying water to its CllstQ tlers. <br />The discussion of water supply reliability is described in following four sections: <br /> 1. SFPUC water supply <br /> 2. RWCWaterdemo;nd <br /> 3. Reliability: the water supply .and dentand balance <br /> 4. Se!ectínga proper level of reliability <br />1. SFPUC Water Supply <br />R we currently purchase~ 10P% of its potllble water supplies from the San Francìsco P!1blíc <br />Utüities Commission (SFPUC).1ihe SFPuC serves as 8. wholesaler of water from the Hetch <br />ìIetchy Water and Power System. To quantify the futw'e re1îability of water supplies from this <br />source, I consulted the foUowing three sources ofinførmation: <br /> tJ San Francisco Public Utiliti~ Commission (SFPUC) Water Supply Master P1an, April <br /> 2000. <br />