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POC 4 <br />0019 + 0 cw++uia �e ProeaetMy ' 0 <br />M 001 <br />U 0' m 01 <br />001 <br />y,. 0 <br />00010E•5 10E-4 10E-3 10E 10E-1 1 10 100 <br />a oo+ 0 00 t <br />P�ra�r�t Tlm� Exc��dir�p OS , ., t,: :C 30 50 7C SG ?C 9- AP a 95S t <br />+ Predeveloped x Mitigated <br />Predeveloped Landuse Totals for POC #4 <br />Total Pervious Area: <br />0.24 <br />Total Impervious Area: <br />0 <br />Mitigated Landuse Totals for <br />POC #4 <br />Total Pervious Area: <br />0 <br />Total Impervious Area: <br />0.24 <br />Flow Frequency Method: <br />Log Pearson Type III 17B <br />Flow Frequency Return Periods for Predeveloped. POC #4 <br />Return Period <br />Flow(cfs) <br />2 year <br />0.005145 <br />5 year <br />0.007615 <br />10 year <br />0.009306 <br />25 year <br />0.011487 <br />50 year <br />0.013137 <br />100 year <br />0.014805 <br />Flow Frequency Return Periods for Mitigated. POC #4 <br />Return Period <br />Flow(cfs) <br />2 year <br />0.101905 <br />5 year <br />0.137874 <br />Design Flow for CB #3 <br />10 year <br />0.164176 <br />25 year <br />0.200351 <br />50 year <br />0.22951 <br />100 year <br />0.260628 <br />Annual Peaks <br />Annual Peaks for Predeveloped and Mitigated. POC #4 <br />Year Predeveloped Mitigated <br />1949 0.003 <br />0.104 <br />1950 0.006 <br />0.122 <br />1951 0.005 <br />0.119 <br />1952 0.004 <br />0.096 <br />1953 0.003 <br />0.125 <br />1954 0.011 <br />0.156 <br />1955 0.008 <br />0.119 <br />1956 0.007 <br />0.054 <br />1957 0.008 <br />0.092 <br />1958 0.005 <br />0.230 <br />1959 0.006 <br />0.095 <br />Pipe Sizing 7/19/2021 12:04:20 PM Page 41 <br />