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a <br /> 11586 SPENSA - ORONO Type 11 24-hr 2 yr Rainfall=2.80" <br /> Prepared by{enter your company name here} Page 3 <br /> HydroCAD®8.00 s/n 000837 0 2006 HydroCAD Software Solutions LLC 5/18/2009 <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 1P: PROPOSED RunoffArea=42,540 sf Runoff Depth>1.76" <br /> Tc=10.0 min CN=91 Runoff=2.73 cfs 0.143 of <br /> Subcatchment 1S: EXISTING RunoffArea=30,350 sf Runoff Depth>1.67" <br /> Tc=12.0 min CN=90 Runoff=1.76 cfs 0.097 of <br /> Reach 1R: (new Reach) Inflow=1.76 cfs 0.097 of <br /> Outflow=1.76 cfs 0.097 of <br /> Pond RAIN G: POND 1 Peak Elev=1,022.58' Storage=4,430 cf Inflow=2.73 cfs 0.143 of <br /> Discarded=0.04 cfs 0.033 of Primary=0.10 cfs 0.009 of Outflow=0.15 cfs 0.042 of <br /> Total Runoff Area= 1.673 ac Runoff Volume=0.240 of Average Runoff Depth= 1.72" <br /> 39.17%Pervious Area=0.655 ac 60.83% Impervious Area= 1.018 ac <br />