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Graphical Peak Discharge <br />Project: sWB -5 <br />Location: Revenue Mine <br />Developed <br />1. Data: <br />SWB -5 100YR Discharge.txt <br />Mon Nov 26 15:28:47 2012 <br />By: B Langenfeld <br />Checked: <br />Drainage area: .................... A = 0.1315Acres <br />Runoff Curve Number: ............. CN = 74 <br />Time of concentration: ........... TC = 0.04 <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 />= 0.7027 <br />5. <br />Compute Ia /P ....................... <br />= 0.2196 <br />6. <br />unit peak discharge, qu <br />...... csm /in <br />= 970.10 <br />7. <br />Runoff ,Q .........................in <br />= 1.0375 <br />8. <br />Pond & swap adjustment <br />factor .... Fp <br />= 1.00 <br />9. <br />Peak Discharge,gp ...............cfs <br />= 0.2069 <br />Page 1 <br />Date: 11/26/12 <br />Date: <br />