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SWB -3 100 YR Runoff CN and Runoff.txt <br />Runoff curve Number and Runoff Thu Jan 10 14:41:29 2013 <br />Project: SWB -3 By: B Langenfeld Date: <br />01/10/13 <br />Location: Revenue Mine Checked: Date: <br />Present <br />1. Runoff Curve Number (CN) <br />cover description <br />oak -Aspen & Mt brush (Poor) <br />Bare rock <br />CN (weighted): 83.1 <br />Total Area: 18.810 Acre <br />2. Runoff <br />Return Period: <br />100 -Year <br />Rainfall, P: <br />3.20 <br />Runoff, Q: <br />1.6166 <br />Runoff volume: <br />2.5339 <br />CN Soil Group Area(Acre) <br />74 C 7.396 <br />89 C 11.414 <br />Page 1 <br />in <br />in <br />Acre -Ft <br />