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CITY OF SANTA ANA CIVIC CENTER FACILITIES STRATEGIC PLAN <br />WATER SUPPLY ASSESSMENT <br />City of Santa Ana Total Water Demand Projections <br />Per the City's 2015 Urban Water Management Plan (Table 2.2 and Table 2 -4), the following is a summary <br />of the potable water demands projected in acre -foot for the Use Type "Other' ((CII) Comm/Instit /Indust) <br />and the comparison to the additional average demand projected for the FSP Project: <br />Table 4: Santa Ana Total Water Demand Proiects (based on UWMP) <br />Demands for Potable Water (Acre -foot per year) <br />Description <br />2015 <br />2020 <br />2025 <br />2030 <br />2035 <br />2010 <br />Total Potable Water <br />Demands <br />36,656 <br />36,678 <br />39,397 <br />39,669 <br />39,658 <br />39,716 <br />Accumulative <br />Additional Total <br />22 <br />2,741 <br />3,013 <br />3,002 <br />3,060 <br />Demand <br />Use Type "Other" <br />(C1I) <br />12,025 <br />12,033 <br />12,925 <br />13,014 <br />13,010 <br />13,030 <br />Comm/Instit /Indust <br />Accumulative "Other' <br />g <br />900 <br />989 <br />985 <br />1,005 <br />Additional Demand <br />FSP Project <br />158 <br />385 <br />576 <br />770 <br />770 <br />Additional Demand <br />The City's UWMP did not anticipate much of an increase in water demands between 2015 and 2020 due to <br />meeting the State's water reduction goal (SBx7 -7 Requirements). As seen above the 2020 FSP Project <br />additional demand is more than the additional demand projected in 2020. <br />After 2020, the additional demand as [lie result of the FSP Project is accounted for in the projections for the <br />"Other" Use Type within the UWMP. <br />2020 Projected Potable Water Demand <br />Based on the UWMP, the total potable water projected demand for 2020 is 36,678 AF /year. Adding the <br />FSP Project additional water demand projected for 2020 (158 AF /yr), the total potable water projected <br />demand would be increased to 36,836 AFY or an increase of little over 0.4% over the total projected <br />demand. This increase is minimal in comparison to the State's water reduction goal the City has been <br />striving to meet. This is confirmed by comparing to the following City of Santa Ana Historical Water <br />Demands: <br />• City of Santa 10 year average (1999 to 2009): 46,576 AF /year <br />(Source: Santa Ana Historical Production Records) <br />• Metropolitan WSAP April 2009 Base Year Demand for City: 46,809 AF /year <br />The City of Santa Ana's water system has previously meet system demands well over 46,000 AF /year and <br />will have the ability to meet the additional FSP Project additional demands in 2020. <br />In addition, as stated in Section 3.6.5 (Multiple -Dry Year Period Reliability Comparison) of the UWMP, <br />the City has available supplies to meet the projected demand with a 6 percent increase due to its diversified <br />supply and conservation measures. <br />581MV7 <br />