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• If these recent trends continue, lower peak demands at both the water and wastewater <br />treatment plants will delay the need for costly future expansions. The red and <br />b ~een stars in Figures 11 and l2 illustrate the substantial effects that demand <br />management or peak flow reductions can have on the timing of major expansions at <br />both plants. <br />Figure 11. Jones Ferry: Road Water Treatment Plant <br />' 'Peak Day Finished Water Demand vs. Plant Capaci <br />as <br />o a0' Projected Demand <br />~ No Reuse, PF - 1.65 <br /> <br />c 25 _ __.~__._.__ ....____ _.. ..._. -_.__ <br />m <br />m <br />WTP Capacity Projected Demand <br />~ zo ~----- - - - - With Reuse, PF =1 45 <br />m <br />0 <br />s <br />m i5'. <br />-._- ____._-. _... ...___ _ _ <br />a •• <br /> •• <br />• •~• <br /> ~ <br />10 <br />1995 2000 2005 2010 2015 2020 '2025 2030: 2035 2040 2045 2050 <br />Present Treatment Capacity = 20 MGD <br />PF =Peaking Factor =Ratio of Peak Day to Average Day <br />The red line in Figure 11 represents peals day demand projections for OWASA's <br />.Jones Ferry Road Water Treatment Plant assuming a higher one-day peaking factor of <br />1.65, as proposed in OWASA's 2001 Master Plan, and no OWASA/UNC reuse <br />project. The sreear line represents demand projections with a lower peaking factor of <br />1.45, which was adopted as a long-teen goal by the OWASA Board of Directors in <br />April 2005, and assuming the reuse project is in place. As noted by the red and <br />green stars, implementing the wastewater reuse program with IJNC and reducing the <br />peak day demand factor from 1,65 to 1.45 is expected to defer the next major <br />expansion of OWASA's water treatment plant by more than 10 years. <br />Figure 12. 'Mason Farm Wastewater Plant Capacity vs. <br />ao Actual and Projected Max Month'Flows <br /> Projactotl Maz Month <br />~ 25 - -.. ......_..._.._ with PF=1.4 _ <br />O <br />m <br />a 20'. <br />__ _..._____.- --._._ __ _....~__._. <br />N - <br />o WWrP Capadry <br />t j 75 _ -_._'..".'_ _ _. ___. __-- -- Praloctotl Maz Month ` <br />c wi(h PF = 7.2 <br /> <br />S <br /> <br />5 <br />~ ~. <br />1995 2000 2005 2010 2015 2020 '.2025 2030 '2035 2040 2045 2050 <br />Present Treatment Capacity of 12 MGD Will Be Increased to 14.5 MGD <br />When Current Upgrade is Completed in 2008 <br />OWASA -Water and Sewer Cnpncity Guplicatiorzs of hrcreased Del~elopmwtt Detrsity <br />Page lG oj2l <br />