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P_.� <br />• <br />• <br />TR -42 <br />Seneca II Mine <br />Pond 004 <br />HYDROLOGIC INPUT PARAMETERS <br />Approved Seneca II Mine curve number (CN) values are presented in Appendix 7 -12, Postiming Drainage <br />Control. Values were adapted from Urban Hydrology for Small Watersheds, Technical Release No. 55 (TR- <br />55), Soil Conservation Service, 1986. <br />SEDCAD 4 <br />WATERSHED ID <br />WATERSHED ID <br />WATERSHED ID <br />Structure 9 - SWS -4 <br />Subwatershed - Pond 004 SWS -2 <br />Subwatershed - Pond 004 SWS4 <br />Structure 9 - SWS -1 <br />Watershed Area: <br />3.2 <br />Subwatershed - Pond 004 SWS -1 <br />Curve Number: <br />Watershed Area: <br />VEGETATION <br />HYDROLOGIC <br />CURVE <br />AREA <br />WATERSHED TYPE <br />GROUND COVER <br />SOIL GROUP <br />NUMBER <br />(acres) <br />POND SURFACE <br />n/a <br />n/a <br />100 <br />3.23 <br />Tota l <br />CONTROL <br />AREA <br />WATERSHED TYPE <br />3.2 <br />SOIL GROUP <br />CURVE NUMBER <br />100 <br />Approved Seneca II Mine curve number (CN) values are presented in Appendix 7 -12, Postiming Drainage <br />Control. Values were adapted from Urban Hydrology for Small Watersheds, Technical Release No. 55 (TR- <br />55), Soil Conservation Service, 1986. <br />SEDCAD 4 <br />SEDCAD 4 <br />WATERSHED ID <br />WATERSHED ID <br />Subwatershed - Pond 004 SWS -2 <br />Structure 9 - SWS -1 <br />Watershed Area: <br />6.9 <br />Subwatershed - Pond 004 SWS -1 <br />Sedimentology: k Factor and Control Factor <br />Watershed Area: <br />VEGETATION <br />HYDROLOGIC <br />142.4 <br />CONTROL <br />AREA <br />WATERSHED TYPE <br />COVER <br />Sedimentology: k Factor and Control Factor <br />FACTOR <br />FACTOR <br />(acres) <br />Reclaimed <br />VEGETATION <br />HYDROLOGIC <br />k <br />CONTROL <br />AREA <br />WATERSHED TYPE <br />COVER <br />SOIL GROUP <br />FACTOR <br />FACTOR <br />(acres) <br />Reclaimed <br />Good ( >70 %) <br />B <br />0.16 <br />0.043 <br />122.5 <br />Sagebrush <br />Total <br />Fair <br />D <br />0.37 <br />0.042 <br />19.96 <br />1 142.4 <br />0.19 <br />0.043 <br />SEDCAD 4 <br />WATERSHED ID <br />Structure 9 - SWS -2 <br />Subwatershed - Pond 004 SWS -2 <br />Watershed Area: <br />6.9 <br />Sedimentology: k Factor and Control Factor <br />VEGETATION <br />HYDROLOGIC <br />k <br />CONTROL <br />AREA <br />WATERSHED TYPE <br />COVER <br />SOIL GROUP <br />FACTOR <br />FACTOR <br />(acres) <br />Reclaimed <br />Good ( >70 %) <br />B <br />0.16 <br />0.043 <br />6.86 <br />Total <br />6 . 9 <br />0.16 <br />0.043 <br />2.05.3 -E2.0 -1.27 <br />f ty"d 09/07 <br />