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<br />SUBBASIN B1-7 <br />Composite Runoff Curve Number Calculator <br />Description Area (ac) Curve Number <br />------------ ----------- -------------- <br />WOODED 12.8500 66 <br />GRASSES 12.8500 71 <br />0.0000 0 <br />Total Area -----> 25.7000 69 <----- Weighted CN <br />