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SUBTECT: Protection of the Hydrologic CALCULATION NOTES: <br />System Somerset Coal Mine By M, O. A, <br />• Elk Creek Mine Yard -East Date Suly 15, 1980 <br />Storage Yard Sheet No. 2 of 2 Sheets <br />SOIL LOSS VOLUME <br />A = RKLSC <br />R = 38 <br />K = . 43 undisturbed slopes <br />_ 17 mine refuse = . 16 <br />_ . 15 gravel yard surface <br />LS = 5 equal slopes 200 feet each <br />concave slop <br />35°,io Sage & Grass = 0. I'~ <br />No Appreciable Cover . 4S <br />No Canopy 1. 0 <br />No soil from upper undisturbed slopes at CSeam portal will transport across C-Seam <br />yard area. Elevation 6, 140 <br />H• <br /> Factor E <br /> Slo a iS Table 4 K C Product <br />6140 <br /> .200 5.770 .28 .43 .265 0.184 <br />6100 <br /> .015 0.405 .25 .43 0. 13 0.006 <br />6097 <br /> .0085 0.296 .2I .17 l.0 0.011 <br />6095. 3 <br /> .0065 0.264 .16 .16 1.0 0.007 <br />6094. 0 <br />I .005 0. 240 . 09 . 15 1 . 0 0. 00 3 <br />6093. 0 <br />KLSG = <br />A = 38 x . "L11 = 8. 018 Tons /acre /year <br />Acres = 3. 95 2000 <br />Volume /year = 8, 018 x 3. 95 x -~ _ "'~"'• ''' cubic feet /year <br />3 Year Volume f.f.G. 'l~l x 3 = :'OUO.: ~ cubi•:'i..:a <br />Pond Volume <br />6090 = . 19 x 1002 = 1900 ~ 8200 x 3 = 12, 300 cubic feet <br />6093 = 63 x 1002 = 6300 2 <br />• <br />B- 39 <br />kev. 1: f.-:i-K1 <br />0.211 <br />