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11586 SPENSA - ORONO -revised 5-28-09 Type 1124-hr 2 yr Rainfall=2.80" <br /> Prepared by{enter your company name here} Page 3 <br /> HydroCADO 8.00 s/n 000837 ©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 RunoffArea=42,540 sf Runoff Depth=1.64" <br /> Tc=10.0 min CN=88 Runoff=2.41 cfs 0.134 of <br /> Subcatchment 1X: EXISTING Runoff Area=42,590 sf Runoff Depth=1.64" <br /> Tc=12.0 min CN=88 Runoff=2.27 cfs 0.134 of <br /> Subcatchment 2P: PROPOSED Runoff Area=6,630 sf Runoff Depth>2.54" <br /> Tc=11.0 min CN=98 Runoff=0.50 cfs 0.032 of <br /> Subcatchment 2X: EXISTING Runoff Area=6,630 sf Runoff Depth>2.35" <br /> Tc=12.0 min CN=96 Runoff=0.47 cfs 0.030 of <br /> Pond RAIN G: POND 1 Peak Elev=1,021.56' Storage=3,996 cf Inflow=2.41 cfs 0.134 of <br /> Discarded=0.05 cfs 0.059 of Primary=0.00 cfs 0.000 of Outflow=0.05 cfs 0.059 of <br /> Total Runoff Area=2.259 ac Runoff Volume=0.329 of Average Runoff Depth = 1.75" <br /> 42.62% Pervious Area=0.963 ac 57.38% Impervious Area= 1.296 ac <br />