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Index Hall Replacement: Building Site Flow Control Calculations <br /> 3,.556 0.008 0.017 0.085 0.001 <br /> 3. 600 0.008 0.017 0.205 0.001 <br /> 3. 644 0.008 0.017 0.356 0.001 <br /> 3. 689 0.008 0.017 0.533 0.001 <br /> 3.733 0.008 0.018 0.732 0.001 <br /> 3.778 0.008 0.018 0.951 0.001 <br /> 3.822 0.008 0.018 1.188 0.001 <br /> 3.867 0.008 0.018 1.442 0.001 <br /> 3. 911 0.008 0.018 1.711 0.001 <br /> 3. 956 0.008 0.018 1. 996 0.001 <br /> 4 .000 0.008 0.018 2.296 0.001 <br /> MITIGATED LAND USE <br /> ANALYSIS RESULTS <br /> Flow Frequency Return Periods for Predeveloped. POC #1 <br /> Return Period Flow(cfs) <br /> 2 year 0.735003 <br /> 5 year 0.997677 <br /> 10 year 1.18629 <br /> 25 year 1.441828 <br /> 50 year 1.645015 <br /> 100 year 1.859457 <br /> Flow Frequency Return Periods for Mitigated. POC #1 <br /> Return Period Flow(cfs) <br /> 2 year 0.464104 4 The mitigated 2-year,24-hour flow rate is 0.464 <br /> 5 year 0. 659063 cfs. This is a reduction of greater than 25%when <br /> 10 year 0.800903 <br /> 25 year 0.994811 compared with the Pre-developed flow rate. <br /> 50 year 1.150083 <br /> 100 year 1.314773 <br /> Yearly Peaks for Predeveloped and Mitigated. POC #1 <br /> Year Predeveloped Mitigated <br /> 1950 0.625 0.389 <br /> 1951 1.063 0.748 <br /> 1952 0.825 0.360 <br /> 1953 0.626 0.380 <br /> 1954 0.816 0.530 <br /> 1955 1.040 0. 656 <br /> 1956 0.884 0.605 <br /> 1957 0.394 0.263 <br /> 1958 0.751 0.521 <br /> 1959 1.378 0.943 <br /> 1960 0.656 0.419 <br /> 1961 0.604 0.380 <br /> 1962 1.812 1.227 <br /> 1963 0.780 0.526 <br /> 1964 1.175 0.846 <br /> 1965 0.507 0.324 <br /> 1966 0.565 0.232 <br /> 7 B-1 <br />