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4203 NORTH �HORE DRIV� Type I!24-hr Rainfa11=6.00" <br /> Prepared by Terra Engineering Inc. Page 2 <br /> HydroCAD�7.00 s/n 001544 �9986-2003 Applied Microcomputer Systems 10/11/2005 <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 DRAINAGE AREA(FLOWS TO EAST) Runoff Area=8,145 sf Runoff Depth=3.61" <br /> Flow Length=150' Tc=12.8 min CN=81 RunofF-0.99 cfs 0.056 af <br /> Subcatchment 2S: PROPOSED DRAINAGE AREA(FLOWS TO EAS Runoff Area=6,177 sf Runoff Depth=2.94" <br /> Flow Length=80' Tc=9.4 min CN=74 RunofF-0.70 cfs 0.035 af <br /> Total Runoif Area=0.328 ac Runoff Volume=0.091 af Average Runoff Depth =3.32" <br />