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5. Compute la /P ....................... = 0.2048 <br />6. Unit peak discharge, qu ...... csm/in = 630.60 <br />7. Runoff, Q .........................in = 0.6951 <br />8. Pond & swap adjustment factor .... Fp = 0.72 <br />9. Peak Discharge,gp ...............cfs = 11.1942 <br />DITCH C10 <br />Time of Concentration (SCS Method) <br />Curve Number: 84 <br />Length of Flow (ft): 1105.94 <br />Average Land Slope (percent): 14.0 <br />Time of Concentration (hrs): 0.13 <br />DITCH C10 <br />Graphical Peak Discharge <br />Project: NUCLA MINE <br />By: GL Date: 02/17/06 <br />Location: DITCH C10 <br />Checked: Date: <br />Developed <br />1. Data: <br />Drainage area: .................... <br />A = 5.5000 Acres <br />Runoff Curve Number: ............. <br />CN = 84 <br />Time of Concentration: <br />........... Tc = 0.13 <br />Storm Type: ....................... <br />=11 <br />Pond and swamp areas spread <br />throughout watershed ............... <br />= 0.00 percent of A <br />0.0000 Acres <br />2. Frequency ........................yr <br />= 10 <br />3. Rainfall ,P(24 - hour) .............. <br />in = 2.00 <br />4. Initial abstraction, la............ <br />= 0.3810 <br />5. Compute la /P ....................... <br />= 0.1905 <br />Revised August 2009(PB06) Attachment 2.05.3(3) -1 -20 <br />