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. <br /> C:\Program Files�FiydroCADlProjeats�t-IydroCAD Proje�ts108 JOBS\ <br /> 08175B Barry Sewali Proposed Conditions May 13, 2009 Type ll 24-hr 100 Year Rainfall=6.00" <br /> Prepared by Gronberg &Associates, Inc. Printed 5/20l2009 9:09:37 AM <br /> HydroCAD�9.00 s/n 04529 �2009 HydroCAD Software Solutions LLC Paae 20 <br /> Summary for Subcatchment A1: Area 1 <br /> Runoff = 2.55 cfs a� 12.04 hrs, Volume= 0.135 af, Depth> 1.57" <br /> Runoff by SCS TR-20 method, UH=SCS,Time Span=5.00-20.00 hrs, dt= 0.05 hrs <br /> Type II 24-hr 100 Year Rainfa11=6.00" <br /> Area (ac) CN Description <br /> 0.070 98 Paved parking 8 roofs <br /> 0.030 61 >75% Grass cover, Good, HSG B <br /> 0.930 55 Woods, Good, HSG B <br /> 1.030 58 Weighted Average <br /> 0.960 93.20% Pervious Area <br /> 0.070 6.80% Impervious Area <br /> Tc Length Slope Velocity Capacity Description <br /> (min) (feet) (fUft) (ft/sec) (cfs) <br /> 11.0 Direct Entry, <br />