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<br />C~ <br /> <br />Seneca II Mine <br />Pond 004 <br />HYDROLOGIC INPUT PARAMETERS <br /> SEDCAD 4 <br /> WATERSHED ID <br /> Structure 9 - SWS3 <br /> Subwatershed -Pond 004 SWS-3 <br />Watershed Area: <br />19.1 <br />Sedimentology: k Factor and Control Factor <br /> VEGETATION HYDROLOGIC k CONTROL AREA <br />WATERSHED TYPE COVER SOIL GROUP FACTOR FACTOR (acres) <br />Reclaimed Good (>70%) B 0.16 0.043 18.13 <br />Sagebrush Fair D D.37 0.042 0.97 <br />Total 19.1 <br /> 0.17 0.043 <br /> SEDCAD 4 <br /> WA7ERSHEDID <br /> Structure 9 - SWS4 <br /> Subwatershed -Pond 004 SWS-4 <br />Watershed Area: <br />3.2 <br />Sedimentology: k Factor and Control Factor <br /> VEGETATION HYDROLOGIC k CONTROL AREA <br />WATERSHED TYPE COVER SOIL GROUP FACTOR FACTOR (acres) <br />Reclaimed n/a n!a 1 1 3.23 <br />Total 3.2 <br /> 1.00 1.00 <br />The soil erotlibility factor, "k-Facoof', values were determined basetl on Seneca Il soil survey information (see Tab 9, <br />Exhibit 9-1, Soil Type and Sampling Locations, and AHachmenl 9-fi) as presented in Soils o/Colorado, Loss Factors and <br />Erodibilify, Soil Conservation Service, 1983. <br />The Control Factor values were adapted from the Yoast and Seneca II-W permit application packages. These values are <br />presented in each permit in the Drainage and Sediment Control Plan attachment, which is located in Tab 13 of the <br />respective permit documents. Tha values are hased on Renard, et aI. (Renard, K.G., Foster, G.R., Weesies, G.A., <br />McCool, D.K., and D.C. Yoder, coordinators, 1996. Predicting Soil Erosion by Water: A Guide to Converafion Planning with <br />the Revised Universal Soil Loss Equation (RUBLE). Agricultural Handbook 703. U.S. Department of Agriculture. <br />TR-42 <br />7-6c.tA-29 <br />Revised 09/07 <br />