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u <br />1 <br />1 <br />TABLE 6-1C <br />COST EFFECTIVENESS ANALYSIS <br />STEP SYSTEM <br />SitN System <br />ItemQuantify­ Cost <br />7 <br />Performance Bond Premiums <br />0&M: <br />$118.64/Unit/Year for 20 Years(1) <br />Present Worth = $1,112.58 x 422 <br />Power: <br />$14.40/Unit/Year for 20 Years(1) <br />Present Worth = $135.14 x 422 <br />Septic Tank Drainage: <br />$50/3 Years for 20 Years(1) <br />Present Worth = $156/Septic <br />Tank x 422 <br />P/A, 8-5/8%, 20 Years = 9.3778 <br />(2) P/F, 8-5/8%, 15 Years = 0.2891 <br />(3) P/F, 8-5/8%, 20 Years = 0.1912 <br />0.1912 x 10 Years = 0.1275 <br />Years <br />TOTAL <br />$ 801,800 <br />231,800 <br />(102,230) <br />422,000 <br />91,975 <br />316,500 <br />105,500 <br />3,000 <br />37,980 <br />21,100 <br />$1,929,426 <br />64,800 <br />$ 192,943 <br />469,509 <br />57,029 <br />$2,779,538 <br />STEP System: <br />STEP - Pumps Original <br />9 <br />422 <br />STEP Pumps - 15 -Year (2) <br />Replacement <br />422 <br />Less: Salvage Value of STEP(3) <br />Pump Replacements <br />422 <br />Rehabilitative Existing <br />' <br />Septic Tanks <br />422 <br />PVC Force Main <br />(211, 2-1/211, 3") <br />18,395 l.f. <br />Cleanouts and <br />Air -release Valves <br />422 <br />Service Connections <br />422 <br />Wet Tap Connections to Existing <br />' <br />Force Mains <br />12 <br />Electrical Cable <br />12,660 l.f. <br />' <br />Electric Outlet <br />422 <br />Subtotal. <br />Pavement Repair <br />5,184 sq. yd. <br />Miscellaneous: <br />' <br />Special Foundations, <br />7 <br />Performance Bond Premiums <br />0&M: <br />$118.64/Unit/Year for 20 Years(1) <br />Present Worth = $1,112.58 x 422 <br />Power: <br />$14.40/Unit/Year for 20 Years(1) <br />Present Worth = $135.14 x 422 <br />Septic Tank Drainage: <br />$50/3 Years for 20 Years(1) <br />Present Worth = $156/Septic <br />Tank x 422 <br />P/A, 8-5/8%, 20 Years = 9.3778 <br />(2) P/F, 8-5/8%, 15 Years = 0.2891 <br />(3) P/F, 8-5/8%, 20 Years = 0.1912 <br />0.1912 x 10 Years = 0.1275 <br />Years <br />TOTAL <br />$ 801,800 <br />231,800 <br />(102,230) <br />422,000 <br />91,975 <br />316,500 <br />105,500 <br />3,000 <br />37,980 <br />21,100 <br />$1,929,426 <br />64,800 <br />$ 192,943 <br />469,509 <br />57,029 <br />$2,779,538 <br />