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<br /> <br />YOAST MINE <br />Pond 70 System <br />HYDROLOGIC INPUT PARAMETERS <br /> SEDCAD 4 <br /> WATERSHED ID <br /> Structure 8 - SWS1 <br /> Watershed -Channel YPM-21 <br />Watershed Area: <br />5.2 <br />Curve Number: <br /> VEGETATION HYDROLOGIC CURVE AREA <br />WATERSHED TYPE COVER SOIL GROUP NUMBER acres <br />Reclaimed Fair (30%<x<70%) B 71 5.17 <br />Total 5.17 <br /> CURVE NUMBER 71 <br />Curve number (CN) values used are approved Yoast Mine values (see Table 13-12.1). Values were <br />adapted from Urban Nydmlogy for Small Watersheds, Technical Release No. 55 (TR-55) ,Soil Conservation <br />Service, 1986. <br /> SEDCAD 4 <br /> WATERSHED ID <br /> Structure 8 - SWS1 <br /> Watershed -Channel YPM-21 <br />Watershed Area: <br />5.2 <br />Sedimentology <br />k Factor and Control Factor <br /> VEGETATION HYDROLOGIC k CONTROL AREA <br />WATERSHED TYPE COVER SOIL GROUP FACTOR FACTOR acres <br />Reclaimed Fair (30%<x<70%) B 0.16 0.043 5.17 <br />Total 5.17 <br /> 0.16 0.043 <br />TR-35 <br />13-3A-A.27 <br />Revised 08/07 <br />