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Runoff Curve Number and Runoff <br />Project: O13Pond By: R L GUBKA Date: <br />Location: NEW HORIZON MINE Checked: Date: <br />Developed <br />1. Runoff curve number (Cn) <br />Cover description CN Soil Type Area <br />dryland pasture 86 C 38.110 Acres <br />CN (weighted): 86 <br />2. Runoff <br />Frequency ..............: 10 yr <br />Rainfall, P (24-hour) ..: 2.0 in <br />Runoff, Q ..............:0.8490 in <br />Runoff Volume ..........:2.6963 Acre-Ft <br />C-Factor Calculation <br />Project: O13POND By: R L GUBKA Date: <br />Location: NEW HORIZON MINE Checked: Date: <br />Developed <br />C-factor (CF) <br />Cover description CF <br />DRYLAND RECLAMATfON <br />CF (weighted): 0.500 <br />Total Area: 38.110 Acre <br />Area(Acre) <br />0.500 38.110 <br />Attachment 2.05.3(3)-21-8 <br />