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I • Average Land Slope (percent): 6.1 <br />Time of Concentration (hrs): 0.50 <br />DITCH C17 <br />Graphical Peak Discharge <br />Project: NUCLA MINE By: GL Date: 02/16/06 <br />Location: DITCH C17 Checked: Date: <br />Developed <br />1. Data: <br />Drainage area :....................A = 31.8000 Acres <br />• Runoff Curve Number :.............CN = 78 <br />Time of Concentration:...........Tc = 0.50 <br />• <br />Storm Type :....................... = II <br />Pond and swamp areas spread <br />throughout watershed ............... = 0.20 percent of A <br />0.0636 Acres <br />2. Frequency ........................yr = 100 <br />3. Rainfall,P(24-hour) ..............in = 3.00 <br />4. Initial abstraction, la............ = 0.5641 <br />REVISED MARCH 2006 <br />Attachment 2.05.3(3)-1-34 <br /> <br />