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Runoffcalc 9-Pt, Page 1, 10/27/99 <br />Runoff volume check for 9-P1 <br />Accumulated Assumed S=(1000/C Accumulated runoff, Accumulated No. of acres <br />precipitation, CN N) - 10 Q, in inches = [(P- runoff w/o in <br />P, in inches (0.2XS)]^2/[P+(0.8)( initial contributing <br />S) abstractions, drainage <br />Q', in inches = area <br />P^2/P <br />10-vr, 24-hr. <br />1.4 90 1.11 0.606 1.400 36.40 <br />25-vr. 24-hr. <br />1.8 90 1.11 0.926 1.800 36.40 <br />acre-feel of <br />runoff for <br />drainage = <br />(Q/12)Xacres <br />1,84 <br />2.81 <br />100-vr, 24-hr. <br />2.2 90 1.11 1.266 2.200 36.40 <br />