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V <br />Annual Runoff Determination <br />Annual runoff used for sizing the pond was based on the curve numbers and <br />acres disturbed as developed previously. From runoff tables in Reference <br />2, expected annual runoff, as shown in Table 2, was determined. <br />Table 2 <br />Runoff Volume <br />Year Acres CN Runoff (In) Runoff (A-Ft1 <br />1980 213 91 0.99 17 <br />1981 250 87 0.75 16 <br />1982 282 86 0.70 16 <br />• <br />1983 282 85 0.65 15 <br />1984 313 85 0.65 17 <br />1985 313 84 0.61 16 <br /> <br />