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. <br /> IVY PLACE - EXISTING CONDITIONS <br /> 17059 - IVY PLACE - EXISTING Type II 24-hr 100-YEAR Rainfall=7.50" <br /> Prepared by {enter your company name here} Printed 10/18/2017 <br /> HydroCAD® 10.00-20 s/n 02202 ©2017 HydroCAD Software Solutions LLC Page 19 <br /> Time span=0.00-24.00 hrs, dt=0.01 hrs, 2401 points <br /> Runoff by SCS TR-20 method, UH=SCS, Weighted-CN <br /> Reach routing by Stor-Ind+Trans method - Pond routing by Stor-Ind method <br /> SubcatchmentEX 1: EXISTING DRAINAGE Runoff Area=48,753 sf 0.00% Impervious Runoff Depth>5.15" <br /> Tc=10.0 min CN=80 Runoff=8.66 cfs 0.480 af <br /> SubcatchmentEX 2: EXISTING DRAINAGE Runoff Area=45,327 sf 0.67% Impervious Runoff Depth>5.15" <br /> Tc=10.0 min CN=80 Runoff=8.06 cfs 0.446 af <br /> Reach 1R: TOTAL Inflow=16.74 cfs 0.924 af <br /> Outflow=16.74 cfs 0.924 af <br /> Pond 2P: EX WETLAND B Peak EIev=931.04' Storage=84 cf Inflow=8.66 cfs 0.480 af <br /> Discarded=0.00 cfs 0.000 af Primary=8.68 cfs 0.478 af Outflow=8.68 cfs 0.478 af <br /> Total Runoff Area = 2.160 ac Runoff Volume = 0.926 af Average Runoff Depth = 5.15" <br /> 99.68% Pervious = 2.153 ac 0.32% Impervious = 0.007 ac <br />