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T:1074211406Wune11 CityApp\Surface Water\ <br />ER Landfill 06 2011 Type 1124-hr 25 yr Rainfa11=4.70" <br />Prepared by Wenck Associates, Inc. Printed 8/2/2011 <br />HydroCAD®9.10 s/n 02201 ©2010 HydroCAD Soffinrare Solutions LLC Page 15 <br />Summary. for Subcatchment 9: 8 <br />Runoff = .4.87 cfs @ 11.98 hrs, Volume= 0.238 af, Depth= 2.63" <br />Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-96.00 hrs, dt= 0.02 hrs <br />Type II 24-hr 25 yr Rainfall=4.70" <br />Area (sf) CN Description <br />47,226 80 side of Landfill <br />47,226 100.00% Pervious Area <br />Tc Length Slope Velocity Capacity Description <br />(min) (feet) (ft/ft) (ft/sec) (cfs) <br />0.3 150 - 9.00 Direct Entry, <br />6.7 800 2.00 Direct Entrv. <br />7.0 950 Total <br />Runoff <br />0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 <br />Time (hours) <br />