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HDR-00085438-001 <br />Executive <br />yield available fronl each of these alternatives. The City could potentially develop reliable <br />supplies of up to 85,620 acft/yr (76 MGD) by the development of several of these options. <br />Table ES-5. <br />Summary of Firm Yields of Water Supply Alfernatives <br />Source <br />Firm Yield <br />Existing Water Supply Reservoirs <br />66,960 acft/yr (59.7 MGD) <br />Return Flow Scenario A- Discharge to Crook <br />+ 7,200 acft/yr (6.4 MGD) <br />Return Flow Scenario B- Pine Creek Pump Back to Pat Mayse <br />+ 10,840 acft/yr (9.7 MGD) <br />Raise Lake Crook 2 Feet <br />+ 1,290 acft/yr (1.2 MGD) <br />Pat Mayse Lake Storage Reallocation <br />+ 6,530 acft/yr (5.8 MGD) <br />Total Potential Firm Supply <br />(with Return Flow Scenario A) <br />(with Return Flow Scenario B) <br />81,980 acft/yr (73.1 MGD) <br />85,620 acft/yr (76.4 MGD) <br />Table ES-6 summarizes poteiltial interruptible supply available with over/underdrafting <br />operations. Interruptible supplies could add, on average, anywhere from 2,300 to 8,600 acft/yr if <br />a customer was identified that could take the extra water when it is available (about 30 percent of <br />the time) and then reduce their water use between 900 and 1,970 acft/yr during the other 70 <br />percent of the time. <br />Table ES-6. <br />Summary of Interruptible Water Supply Available <br />Average Interruptible Amounts <br />Reduced Firm Yield Amounts <br />115% Over/Underdrafting <br />+ 2,970 acft/yr <br />- 920 acft/yr <br />130% Over/Underdrafting <br />+ 5,651 acft/yr <br />- 1,470 acft/yr <br />150% Over/Underdrafting <br />+ 8,659 acft/yr <br />- 1,970 acft/yr <br />115% Over/Underdrafting <br />with Reallocation <br />+ 2,338 acft/yr <br />- 1,200 acft/yr <br />130% Over/Underdrafting <br />with Reallocation <br />+ 5,080 acft/yr <br />- 1,200 acft/yr <br />150% Over/Underdrafting <br />with Reallocation <br />+ 7,812 acft/yr <br />- 1,200 acft/yr <br />City of Paris - Pat Mayse Lake Stu(ty ES-8 IDi <br />Jruiuary 2009 - Druf1 <br />_ 000275 <br />