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PHASE 2 INTERIM WASTE PILE Type 1124-hr Rainfall=2.90" <br />Prepared by Greg Lewicki & Associates Page 3 <br />HydroCAD® 8.00 s/n 004412 © 2006 HydroCAD Software Solutions LLC 4/17/2007 <br />Time span=1.00-30.00 hrs, dt=0.05 hrs, 581 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 2 Tm: Temporary Tm Basin Runoff Area=3.120 ac Runoff Depth=1.81" <br />Flow Length=465' Slope=0.0817'P Tc=4.4 min CN=89 Runoff=10.21 cfs 0.471 of <br />Subcatchment 2 Tn: Temporary Tn Basin Runoff Area=4.270 ac Runoff Depth=1.81" <br />Flow Length=834' Slope=0.0167 'P Tc=15.5 min CN=89 Runoff=9.71 cfs 0.644 of <br />Reach 2 Tm-1: COLLECTION-2Tm-1 Avg. Depth=0.89' Max Vet=4.17 fps Inflow=14.24 cfs 1.114 of <br />n=0.030 L=260.0' S=0.0154'/' Capacity=28.30 cfs Outflow= 13.70 cfs 1.114 of <br />Reach 2 Tn-1: COLLECTION-2Tn-1 Avg. Depth=0.86' Max Vet=4.03 fps Inflow=9.71 cfs 0.644 of <br />n=0.030 L=572.0' S=0.0175'/' Capacity= 13.16 cfs Outflow=9.33 cfs 0.644 of <br />Pond 2 Tmn-2: CULVERT Tmn-2 Peak Elev=7,044.17' Inflow=13.70 cfs 1.114 of <br />36.0" x 30.0' Culvert Outflow= 13.70 cfs 1.114 of <br />Total Runoff Area= 7.390 ac Runoff Volume= 1.114of Average Runoff Depth =1.81" <br />100.00% Pervious Area = 7.390 ac 0.00% Impervious Area = 0.000 ac <br />• <br />0