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11586 SPENSA- ORONO -revised 5-28-09 Type 11 24-hr 10 yr Rainfall=4.20" <br /> Prepared by{enter your company name here} Page 7 <br /> HydroCADO 8.00 s/n 000837 0 2006 HydroCAD Software Solutions LLC 6/17/2009 <br /> Time span=4.00-27.00 hrs, dt=0.05 hrs, 461 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 Runoff Area=42,540 sf Runoff Depth=2.92" <br /> Tc=10.0 min CN=88 Runoff=4.20 cfs 0.237 of <br /> Subcatchment 1X: EXISTING Runoff Area=42,590 sf Runoff Depth=2.92" <br /> Tc=12.0 min CN=88 Runoff=3.95 cfs 0.238 of <br /> Subcatchment 2P: PROPOSED Runoff Area=6,630 sf Runoff Depth>3.90" <br /> Tc=11.0 min CN=98 Runoff=0.76 cfs 0.049 of <br /> Subcatchment 2X: EXISTING Runoff Area=6,630 sf Runoff Depth>3.72" <br /> Tc=12.0 min CN=96 Runoff=0.73 cfs 0.047 of <br /> Pond RAIN G: POND 1 Peak Elev=1,022.46' Storage=7,591 cf Inflow=4.20 cfs 0.237 of <br /> Discarded=0.06 cfs 0.084 of Primary=0.00 cfs 0.000 of Outflow=0.06 cfs 0.084 of <br /> Total Runoff Area=2.259 ac Runoff Volume=0.571 of Average Runoff Depth=3.04" <br /> 42.62% Pervious Area=0.963 ac 57.38%Impervious Area= 1.296 ac <br />