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11586 SPENSA-ORONO -revised 5-28-09 Type 1124-hr 100 yr Rainfall=6.00" <br /> Prepared by{enter your company name here} Page 11 <br /> HydroCADS 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 1 P: PROPOSED Runoff Area=42,540 sf Runoff Depth>4.63" <br /> Tc=10.0 min CN=88 Runoff=6.50 cfs 0.376 of <br /> Subcatchment 1X: EXISTING Runoff Area=42,590 sf Runoff Depth>4.63" <br /> Tc=12.0 min CN=88 Runoff=6.12 cfs 0.377 of <br /> Subcatchment 2P: PROPOSED Runoff Area=6,630 sf Runoff Depth>5.64" <br /> Tc=11.0 min CN=98 Runoff=1.10 cfs 0.072 of <br /> Subcatchment 2X: EXISTING Runoff Area=6,630 sf Runoff Depth>5.47" <br /> Tc=12.0 min CN=96 Runoff=1.05 cfs 0.069 of <br /> Pond RAIN G: POND 1 Peak Elev=1,023.34' Storage=7,760 cf Inflow=6.50 cfs 0.376 of <br /> Discarded=0.06 cfs 0.090 of Primary=4.05 cfs 0.123 of Outflow=4.11 cfs 0.213 of <br /> Total Runoff Area=2.259 ac Runoff Volume=0.894 of Average Runoff Depth =4.75" <br /> 42.62% Pervious Area=0.963 ac 57.38%Impervious Area= 1.296 ac <br /> I <br />