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SWB -6B Runoff.txt <br />Runoff curve Number and Runoff <br />Project: SWB -6B <br />Location: Revenue Mine <br />Developed <br />1. Runoff curve Number (CN) <br />cover description <br />Mined Land, Disturbed (Poor) <br />CN (weighted): 87.0 <br />Total Area: 2.031 Acre <br />2. Runoff <br />Return Period: <br />50 -Year <br />Rainfall, P: <br />3.20 <br />Runoff, Q: <br />1.9149 <br />Runoff volume: <br />0.3241 <br />Tue Jan 28 14:52:12 2014 <br />B : B Langenfeld Date: 01/28/14 <br />Checked: Date: <br />CN Soil Group Area(Acre) <br />87 C 2.031 <br />Page 1 <br />in <br />in <br />Acre -Ft <br />