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SWSS <br />• 20 MILE COAL CO YOAST MINE -POND D <br />HYDROLOGIC INPUT PARAMETERS <br />WATERSHED ID: SEDCADa <br />WATERSHED ID <br />Pond D -SWSS Structure 1 - SWS3 <br />Watershed Area: <br />9.0 acres <br />Curve Number: <br />WATERSHED <br />TYPE VEGETATION <br />COVER HYDROLOGIC <br />SOIL GROUP CURVE <br />NUMBER AREA <br />(acres) <br />Dislurbetl-facilities None C 90 9.0 <br />Total 9.0 <br />WEIGHTED CURVE NUMBER: 90 <br />Solt Erodlhiliry Fanor (K(: <br /> <br />SOIL ERODIBILITY FACTOR <br />SOIL <br />TYPE AREA <br />nacres) K <br />FACTOR K'AREA <br />Average Soil 9 0.25 2.25 <br />Weighted K Factor: 0.25 <br />Control Factor: <br />r~ <br />I <br />CONTROL FACTOR <br />CONTROL PRACTICE <br />CONDITION AREA <br />(acres) C <br />FACTOR C'AREA <br />Disturbed 9.0 1 9 <br />Total 9.0 9.000 <br />Weighted C Factor: 1.000 <br />D-35 <br />