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L J <br />• <br /> <br />Runoff Calculation <br />Area Basin <br />Rainfall - 10 yr, 24 hr event <br />Curve Number <br />Runoff <br />Volume of Runoff <br />- 28 Acres <br />- 2.3 inches <br />- 90 for Disturbed Area <br />- 72 for Undisturbed ARea <br />- 1.35 inches for Disturbed Area <br />- 0.43 inches for Undisturbed Area <br />- 2.23 Acre-Feet <br />Sediment Volume <br />Assume .05 Acre Ft/Acre of Disturbed Area <br />Disturbed Area - 16 Acres <br />.8 Acre Ft for Sediment <br />Total Volume of Sediment Pond <br />3.03 Acre Ft <br />-17- <br />