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HARBOR BLVD. MIXED USE TRANSIT CORRIDOR PLAN FINAL FIR <br />CITY OF SANTA ANA <br />5. Environmental Analysis <br />UTILITIES AND SERVICE SYSTEM <br />City estimates that the water usage will be 108.9 GPCD by the year 2020 in order to meet the SBx7 -7 water <br />use target. This 2020 water usage rate was used to calculate the increase in water demand for the proposed <br />development for the buildout year 2035. The water demand was determined by calculating the difference in <br />existing population in the plan area and the proposed population with implementation of the Harbor <br />Corridor Plan. The results are summarized in Table 5.148. As shown in Table 5.148, the water demand <br />within the Harbor Corridor Plan area is estimated to be 2,266 acre -feet per year (ACY), which is an increase <br />of 1,800 ACY from current conditions. <br />Table 5.14 -8 Existing and Future Water Demands Based on Population <br />Harbor Corridor Plan <br />Population <br />Water Usage <br />Rate (GPCD) <br />Total Daily <br />Water Usage <br />( allda ) <br />Total Demand <br />Acre- FeetlYf <br />Existing Conditions (2013) <br />3,252 <br />128.1- <br />416,581 <br />467 <br />Buildout (2035) <br />18,579 <br />108.98 <br />2,023,253 <br />2,266 <br />Difference <br />+15,327 <br />- <br />+1,606,672 <br />+1,800 <br />Total Project Net Increase <br />1,386 <br />104- <br />144,144 <br />1,800 <br />Soumz: City d Santa Ana 2010 UWMP, 2011. <br />GPCD = Gallons per capita per day <br />-Baseline mbar use of 128.1 GPCD is from the 2010 UWMP for the 10-year period from 1995 to 2005. <br />^Future water use of 108.9 GPCD is the 2020 target water usage from the 2010 UWMP. <br />The net increase in water demand shown above does not include the Conventional Zoning Area, since this <br />area would not result in a change or increase in development. However, due to the reduction in the per capita <br />water usage rate established in the City's UWMP for the buildout year, including the Conventional Zoning <br />Area would reduce the projects net increase in water demand. The net increase of 1,800 AFY would be 1,790 <br />AFY with incorporation of the Conventional Zoning Area. <br />This estimate does not take into account the conservation measures that have been implemented by the City <br />of Santa Ana and the actual water usage rates within the City. Information obtained from the Metropolitan <br />Water District of Orange County (MWDOC) indicates that the most current (FY2011 -2012 municipal, <br />commercial and industrial, and institutional water usage rate is 104 GPCD and residential water usage is 66 <br />GPCD.2 Therefore, an additional and more accurate water demand analysis was performed, using the existing <br />water usage rates within the City. The buildout demand rate is conservative because no further conservation <br />efforts were considered in the analysis. The results are provided in Table 5.149. <br />Table 5.14 -9 Existing and Future Water Demands Based on Existing Water Usage Rates <br />Harbor Corridor Plan <br />Residential <br />Population <br />Water Usage <br />Rate (GPCD) <br />Total Daily <br />Water Usage <br />allda <br />Total Demand <br />Acre feetlYr <br />Residential Population - Existing (2013) <br />3,252 <br />66- <br />214,632 <br />240 <br />Residential Population- Buildout(2035) <br />18,579 <br />66b <br />1,226,214 <br />1,374 <br />Difference <br />+15,327 <br />- <br />+1,011,582 <br />+1134 <br />CII Population - Existing (2013r <br />1,386 <br />104- <br />144,144 <br />161 <br />2 Municipal Water District of Orange County (MWDOC), 2013. Orange Counp WaterSupplien, Water Rater &Finanaallolomation. <br />October 2014 Page 5.14 -15 <br />