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<br />Table 2 <br />RUNOFF VOLUME AND PEAK FLOW <br />FROM SPOIL FILL AND ASSOCIATED DRAINAGE AREAS <br /> Draina ge Area Descri ption <br />Cover Area Curve Slope Length TC <br /> acres hrs <br />Spoil fill 1.98 80 <br />Ditches, Pond 1.4 90 <br />and reclaimed <br />areas <br />Combined 3.38 84 .03 670 0.2 <br />Runoff Volume and Peak Flow Calculations <br />• Design Rainfall (10 yr, 24 hr) 1.8 inches <br /> (25 yr, 24 hr) <br />Storm Runoff (10 yr, 24 hr) 0.61 inches = 0.17 acre ft <br /> (25 yr, 24 hr) <br />Peak Discharge 800 <br />CSM/inch <br />Peak Discharge (10 yr, 24 hr) 2.58 cfs <br /> (25 yr, 24 hr) 3.77 cfs <br /> <br />-4- <br />