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UWA10002 - Existing <br />Prepared by {enter your company name here} <br />HydroCAD® 9.10 s/n 01542 © 2009 HydroCAD Software Solutions LLC <br />Type 11 24-hr 2 -yr Rainfall=2. 75" <br />Printed 12/1/2010 <br />Page 4 <br />Time span =5.00 -20.00 hrs, dt =0.05 hrs, 301 points <br />Runoff by SCS TR -20 method, UH =SCS <br />Reach routing by Stor- Ind +Trans method - Pond routing by Stor -Ind method <br />Subcatchment 1S: Existing Runoff Area =4.880 ac 1.02% Impervious Runoff Depth >0.23" <br />Tc =5.0 min CN =61 Runoff =1.56 cfs 0.094 af <br />Total Runoff Area = 4.880 ac Runoff Volume = 0.094 af Average Runoff Depth = 0.23" <br />98.98% Pervious = 4.830 ac 1.02% Impervious = 0.050 ac <br />