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• DITCH C-15 BASIN 22 <br />Time of Concentration (SCS Method) <br />Curve Number: 86 <br />Length of Flow (ft): 232 <br />Average land Slope Q: 11.44 <br />Time of Concentration (hrs): 0.04 <br />05/17/2001 <br />• <br />• <br />Graphical Peak Discharge <br />Project: AMENDMENT By: RLG <br />Location: DITCH C-15 Checked: <br />Developed <br />1. Data: <br />Drainage area :....................A = 1.5934 Acres <br />Runoff Curve Number :.............CN = 86 <br />Time of Concentration:...........Tc = 0.04 <br />05/17/2001 <br />Date: 05/17/2001 <br />Date: <br />Pond and swamp areas spread 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....... ..... = 0.3256 <br />5. Compute la/P ................. ...... = 0.1628 <br />6. Unit peak discharge, qu. ..,..csm/in = 984.30 <br />7. Runoff,Q ........................ .in = 0.8490 <br />8. Pond & swap adjustmen t factor,...Fp = 1.00 <br />9. Peak Discharge,gp ........ .......cfs = 2.0806 <br />neviseo (s-is-zooi> Attachment 2.05.3(3) -10-104 <br />