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DITCH C19 <br />Graphical Peak Discharge <br />Project: NUCLA MINE By: GL Date: 02/16/06 <br />Location: DITCH C19 Checked: Date: <br />Developed <br />1. Data: <br />Drainage area :....................A = 5.2000 Acres <br />Runoff Curve Number :.............CN = 78 <br />Time of Concentration:...........Tc = 0.26 <br />• Storm Type :....................... = II <br />f. J <br />Pond and swamp areas spread <br />throughout watershed ............... = 0.00 percent of A <br />0.0000 Acres <br />2. Frequency ........................yr = 100 <br />3. Rainfall,P(24-hour) ..............in = 3.00 <br />4. Initial abstraction, la............ = 0.5641 <br />5. Compute la/P ....................... = 0.1880 <br />6. Unit peak discharge, qu......csm/in = 680.28 <br />REVISED MARCH 2006 <br />Attachment 2.05.3{3)-1-40 <br />