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CC&V Mine <br />Phase IV b!c Diversion Options <br />PROJECT NO.: 003-2203 <br />CALCULATION TABLE 1. AREA & SCS CURVE NUMBER (CN). <br />SUBWATERSHED: Phase IV b/c Diversion Ditch: Subbasins 1 - 3 with a ortion of Subbasin 0, <br /> Wood Grass Stripped <br /> CN: CN = 66 CN = 71 CN = 60 <br /> AREA AREA AREA AREA Weighted Curve Summary of Est. <br />SUBBASIN ID (ft^2) AREA (miz) (ft^2) (ft^2) (ft^2) Number Peak Flows (cfs) <br />0 718,763 0.026 0 718,763 0 71 10 <br />1 1,724,612 0.071 776,530 0 948,082 74 36 <br />2 1,40D,903 0.041 0 181,422 1,219,481 79 54 <br />3 470,781 0.016 0 100,480 370,301 78 61 <br />~/29/20t)2 10:54 AM <br />J:\OOJOBS1003-2203\SURFWATE1Comp CNs.xls Sheetl Golder Associates 003-2203.200 <br />