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20 MILE COAL MINE <br />POND G -DESIGN CHECK <br />HYDROLOGIC INPUT PARAMETERS <br />WATERSHED ID: <br />• PG-SW53 <br />Watershed Area: <br />6.2 acres <br />• <br />Curve Number. <br />SEDCADO <br />WATERSHED ID <br />Structure 1 - SWS3 <br />WATERSHED <br />TYPE VEGEFATION <br />COVER HYDROLOGIC <br />SOIL GROUP CURVE <br />NUMBER AREA <br />(acres) <br />Disturbed area None C 90 6.2 <br />CURVE NUMBER: 90 <br />Soil Erotlibllity Factor (K): <br />SOIL ERODIBILITY FACTOR <br />SOIL <br />TYPE AREA <br />(acres) K <br />FACTOR K'AREA <br />Disturbed Area 6.2 0.22 1.36 <br />Weighted K Factor. 0.22 <br />Control Factor. <br />CONTROL FACTOR <br />CONTROL PRACTICE <br />CONDRION AREA <br />(acres) C <br />FACTOR C'AREA <br />Disturbetl Area 6.2 1.000 6.200 <br />Welghtetl C Factor: 1.000 <br />• <br />