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<br />II . 1 I - - <br /> <br />I <br />RWC Wlter Supply ReI!IIbility <br />0 7.6% chance of a 17.5%-cutback-thîs would eIJtaíl a major "event" requiring water <br /> conservation and rationing. <br />0 2.5% chance ora 28.4% cutback-!bís would be a "dramatic~ event involving major <br /> disruptions with customers, <br />The probJÙ:>ililies developed in the SfPUC master plan relate to water demands exhibited in <br />about theFY 1998/99 and FY 1999/2000pEOiod. As members ofBAWUA use more water in the <br />future, the frequency and magnitude of the cutt.>a,cks will increase, In fact; IIAWUA 's water use <br />ba¡; increased in the iast few years and ísprojected to increase over time out to at least 2030 <br />(BAWUA Annual Survey of Results FY2000-01, Dœember2001). The lastco]umn ofExhíbit] <br />shows an estimate of the. degradation in water supply reliability forthe yell!' 2010. The frequency <br />of cutbacks equal to orexeeeding 17.5% will grow from 10.]% to 16.4% overthîs period. It is <br />also .¡u:¡ticípated that cutbacks will bç of greater magnitude. <br />2. RWC Water Demand <br />Future water demands for RWC are q,uantifiedand described in the report titled Redwood City <br />WuJer Use .Forecast 2000 /0' 2020, submitted toR we by Jolm B. Whitcomb, PhD, lune 20, <br />2002. The forecasts are also írn:luded in theRWC Urban Water Management Plan. The bottom <br />lincwaler use forecasts are reproduced in Exhibit 2. <br />Exhibit 2. awe Water Demand Forecast, Acre Feet per Year (I) <br /> Forecast Year <br /> Actlúll <br /> 2000 2005 2010 2015 2020 <br /> 13,170 [3,467 14,19] 14,590 14,817 <br />(I) Forecasts include 4% unaccounred"for water rate and passive conservation resulting from <br />natunll replacement of toilets and clothes washers with more efficieJJt mooel$. They do lIot <br />include active cooservalion or water substitution resulting from using re.cycled water for <br />itriga!Íon. <br /> Plge) <br />