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<br />OPERATIOJI AND III.AIII'IIIIMC COSTS <br />Table XX summarizes the annual1zed maintenante costs ~ed with operating lS #3. <br /> <br /> <br />$1,000 <br />$7,500 <br />$30,000 <br /> <br /> <br />$2,600 <br />$1,200 <br />$180 <br />$500 <br /> <br />$1,000 <br />$750 <br />$1,000 <br />$7.230 <br /> <br />Table XX summarizes the annualized maintenance costs associated with an additional 1700 LF of gravity <br />sewer. <br /> <br />,18UI. ... .ITI.AnD AM..AUZI. O'EIATIOM AMD MA..'.MAIICI COlli FDI nil Lf OF .IAv.n "W.8 <br /> <br /> <br />5425 <br />$1275 <br /> <br /> <br />RECOrIMEfIDED SOLUTIOI <br /> <br />From above. the total cost to construd the gravity sewer in Option 1 is S 1 09.000. The net cost savings in <br />maintenance for Option 1 is $6.550 ($7,230-$680). This gives us a payback period of roughly 16.6 years. <br /> <br />From above, the total cost to construct the gravity sewer in Option 2 is S 142,000. The net cost savings in <br />maintenance for Option 2 Is $1,230. This gives us a payback period of roughly 19.6 years. <br /> <br />The payback period is smaR enough to justify the improvements. With the additional reliabirlty of the <br />system, which is difficult to quantify, gained through the improvements, we would recommend installing <br />the new gravity sewer to eliminate lS #3. <br /> <br />Option 1 appears to be a better value in terms of how quickly the improvement will pay for itself. However, <br />if there are significant problems identified with the sewer in Center Street which need repair, that could <br />change the balance. It is also unknown at this time. whether the south route can be constructEd completely <br />within existing drainage and utility easements. If additional easements were needed. this would also <br />require a reexamination of the numbers. A spedflc route option can be chosen as part of the final design as <br />more detailed Information is gathered to evaluate eadl option. <br /> <br />L <br /> <br />;5 <br />