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Average Land Slope (percent): 11 <br />Time of Concentration (hrs): 0.18 <br />DITCH C22 <br />Graphical Peak Discharge <br />Project: NUCLA MINE By: GL Date: 02/17/06 <br />Location: DITCH C22 Checked: Date: <br />Developed <br />1. Data: <br />Drainage area: .................... A = 4.1000 Acres <br />Runoff Curve Number: ............. CN = 82 <br />Time of Concentration: ........... Tc = 0.18 <br />Storm Type: ....................... = II <br />Pond and swamp areas spread <br />throughout watershed ............... = 0.00 percent of A <br />0.0000 Acres <br />2. Frequency ........................ yr = 10 <br />3. Rainfall,P(24- hour) .............. in = 2.00 <br />4. Initial abstraction, la............ = 0.4390 <br />5. Compute la /P ....................... = 0.2195 <br />6. Unit peak discharge, qu ...... csm /in = 775.19 <br />7. Runoff ,Q .........................in = 0.6487 <br />8. Pond & swap adjustment factor .... Fp = 1.00 <br />9. Peak Discharge,gp ...............cfs = 3.2216 <br />DITCH C22 <br />Channel Type: Trapezoidal, Equal Side Slopes <br />Dimensions: Left Side Slope 2.00:1 <br />Right Side Slope 2.00:1 <br />Revised June 2011 JR -60) Attachment 2.05.3(3) -1 -38 <br />