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Analysis Results <br />POC 1 <br />W, <br />0 <br />U 0.75 <br />0.55 --- <br />0 <br />J <br />L 0.35 <br />01 <br />0.1516 5 10E 4 10E 10E2 10E 1 1 10 100 <br />Percent Time Exceeding <br />+ Predeveloped <br />Predeveloped Landuse Totals for POC #1 <br />Total Pervious Area- 1.293 <br />Total Impervious Area- 0.476 <br />Mitigated Landuse Totals for POC #1 <br />Total Pervious Area: 0.389 <br />Total Impervious Area- 1.38 <br />CumulaM1ve P+o6abilAy <br />LL <br />et <br />�.5 t I 5 10 70 30 <br />x Mitigated <br />Flow Frequency Method- Log Pearson Type III 17B <br />Flow Frequency Return Periods for Predeveloped. POC #1 <br />Return Period <br />Flow(cfs) <br />2 year <br />0.29301 <br />5 year <br />0.454635 <br />10 year <br />0.585941 <br />25 year <br />0.782576 <br />50 year <br />0.953406 <br />100 year <br />1.146883 <br />Flow Frequency Return Periods for Mitigated. POC #1 <br />Return Period <br />Flow(cfs) <br />2 year <br />0.168627 <br />5 year <br />0.26481 <br />10 year <br />0.34707 <br />25 year <br />0.475922 <br />50 year <br />0.592611 <br />100 year <br />0.729425 <br />Annual Peaks <br />Annual Peaks for Predeveloped and Mitigated. POC #1 <br />Year <br />Predeveloped <br />Mitigated <br />1949 <br />0.391 <br />0.129 <br />1950 <br />0.435 <br />0.167 <br />1951 <br />0.237 <br />0.169 <br />1952 <br />0.275 <br />0.127 <br />1953 <br />0.343 <br />0.129 <br />1954 <br />0.638 <br />0.138 <br />1955 <br />0.417 <br />0.345 <br />1956 <br />0.158 <br />0.125 <br />1957 <br />0.381 <br />0.160 <br />1958 <br />0.883 <br />0.723 <br />Northwest Tank Sizing_190814 8/19/2019 3:33:16 PM <br />Page 8�3� <br />