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POTENTIAL SOIL LOSS <br /> SMALL AREAS <br /> AREA R K LS C P A TONS/ (Ft)' <br /> YEAR <br /> SW end 13 mine pad 40 . 37 2.07 1 1 30.6 3.67 104 .86 <br /> Outslope rock tunnel pad 40 . 33 3 .0 .24* 1 9.5 7. 13 203.71 <br /> Outslope rock tunnel pad 40 . 33 3.0 .042** 1 1.66 1. 25 35.71 <br /> 016 pond topsoil pile 40 . 31 2.8 .043 1 1.49 .16 4 .57 <br /> Bathhouse berm 40 . 37 2.6 .028 1 1.08 .13 3 .71 <br /> Substation- No. 1 Mine 40 1 . 37 1 .19 1 1 1.27 .05 1 .43 <br /> South Portal No. 1 Mine Material is rock, not soil. USLE not <br /> applicable. <br /> * C factor for 314 ton of mulch per acre adequately crimped. <br /> ** C factor for 60% cover type G mostly grass. <br /> A = RKLSCP <br /> A = SOIL LOSS (TONS/ACRE/YEAR) <br /> R = RAINFALL, AND RUNOFF FACTOR <br /> K = SOIL ERODABILITY FACTOR <br /> LS = SLOPE LENGTH AND STEEPNESS FACTOR <br /> C = COVER AND MANAGEMENT FACTOR <br /> P = EROSION� CONTROL PRACTICE FACTOR <br /> Attachment A Technical Revision 20 <br />