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Graphical Peak Discharge <br />Project: SWB -6D <br />Location: Revenue Mine <br />Developed <br />1. Data: <br />SWB -6D 100YR Discharge.txt <br />Tue Nov 20 15:51:30 2012 <br />By: B Langenfeld <br />checked: <br />Drainage area: .................... A = 2.5620Acres <br />Runoff Curve Number: ............. CN = 75 <br />Time of concentration: ........... TC = 0.16 <br />Storm Type: ....................... = II <br />Pond and swamp areas spread <br />throughout watershed ............... = 0.00 percent of A <br />0.0000 Acres <br />2. <br />Frequency ........................yr = <br />100 <br />3. <br />Rainfall ,P(24 - hour) .............. <br />in = <br />3.20 <br />4. <br />Initial abstraction, Ia............ <br />= 0.6667 <br />5. <br />compute Ia /P ....................... <br />= 0.2083 <br />6. <br />unit peak discharge, qu <br />...... csm /in <br />= 818.94 <br />7. <br />Runoff ,Q .........................in <br />= 1.0939 <br />8. <br />Pond & swap adjustment <br />factor .... Fp <br />= 1.00 <br />9. <br />Peak Discharge,gp ...............cfs <br />= 3.5863 <br />Page 1 <br />Date: 11/20/12 <br />Date: <br />