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TABLE 1 <br />SOIL LOSS ESTIMATES <br />FOOTHILL SANITARY LANDFILL <br />Area <br />Approx. <br />Avg. Slope <br />Average <br />R' <br />K 3 <br />m 4 <br />L 5 <br />0 <br />S s <br />LS <br />C <br />P <br />Soil Loss <br />Soil Loss <br />Soil Loss <br />Soil Loss <br />No. <br />Area <br />Length <br />gradient <br />Slope <br />acres <br />ft ' <br />^/ <br />Angle de <br />(tons/acre/year) <br />(tons/sq. ftlear <br />tons/ ear) <br />(CY/year) <br />(inches/ ear <br />1 <br />15.6 <br />400 <br />6 <br />25 <br />0.45 <br />0.28 <br />1.612555 <br />3.434 <br />0.68 <br />1.09 <br />0.05 <br />0.9 <br />0.55 <br />0.00001 <br />8.62 <br />5.32 <br />0.0025 <br />2 <br />90.7 <br />1100 <br />6 <br />25 <br />0.45 <br />0.28 <br />2.140561 <br />3.434 <br />0.68 <br />1.45 <br />0.05 <br />0.9 <br />0.73 <br />0.00002 <br />66.53 <br />41.07 <br />0.0034 <br />3 <br />39.3 <br />1200 <br />6 <br />25 <br />0.45 <br />0.28 <br />2.193353 <br />3.434 <br />0.68 <br />1.48 <br />0.05 <br />0.9 <br />0.75 <br />0.00002 <br />29.54 <br />18.23 <br />0.0035 <br />4 <br />92.4 <br />1450 <br />6 <br />25 <br />0.45 <br />0.28 <br />2.312708 <br />3.434 <br />0.68 <br />1.57 <br />0.05 <br />0.9 <br />0.79 <br />0.00002 <br />73.23 <br />45.20 <br />0.0036 <br />5 <br />39.9 <br />800 <br />6 <br />25 <br />0.45 <br />0.28 <br />1.957956 <br />3.434 <br />0.68 <br />1.33 <br />0.05 <br />0.9 <br />0.67 <br />0.00002 <br />26.77 <br />16.53 <br />0.0031 <br />6 <br />39.6 <br />800 <br />6 <br />25 <br />0.45 <br />0.28 <br />1.957956 <br />3.434 <br />0.68 <br />1.33 <br />0.05 <br />0.9 <br />0.67 <br />0.00002 <br />26.57 <br />16.40 <br />0.0031 <br />7 <br />36.8 <br />900 <br />6 <br />25 <br />0.45 <br />0.28 <br />2.023605 <br />3.434 <br />0.68 <br />1.37 <br />0.05 <br />0.9 <br />0.69 <br />0.00002 <br />25.52 <br />15.75 <br />0.0032 <br />8 <br />38.1 <br />900 <br />6 <br />25 <br />0.45 <br />0.28 <br />2.023605 <br />3.434 <br />0.68 <br />1.37 <br />0.05 <br />0.9 <br />0.69 <br />0.00002 <br />26.42 <br />16.31 <br />0.0032 <br />9 <br />38 <br />1100 <br />6 <br />25 <br />0.45 <br />0.28 <br />2.140561 <br />3.434 <br />0.68 <br />1.45 <br />0.05 <br />0.9 <br />0.73 <br />0.00002 <br />27.87 <br />17.21 <br />0.0034 <br />10 <br />43.8 <br />1900 <br />6 <br />25 <br />0.45 <br />0.28 <br />2.49453 <br />3.434 <br />0.68 <br />1.69 <br />0.05 <br />0.9 <br />0.85 <br />0.00002 <br />37.44 <br />23.11 <br />0.0039 <br />11 <br />32.3 <br />1400 <br />6 <br />25 <br />0.45 <br />0.28 <br />2.290096 <br />3.434 <br />0.68 <br />1.55 <br />0.05 <br />0.9 <br />0.78 <br />0.00002 <br />25.35 <br />15.65 <br />0.0036 <br />12 <br />15.5 <br />700 <br />6 <br />25 <br />0.45 <br />0.28 <br />1.886102 <br />3.434 <br />0.68 <br />1.28 <br />0.05 <br />0.9 <br />0.65 <br />0.00001 <br />10.02 <br />6.18 <br />0.0030 <br />13 <br />14.3 <br />300 <br />30 <br />25 <br />0.45 <br />0.49 <br />2.004151 <br />16.7 <br />4.33 <br />8.67 <br />0.05 <br />0.9 <br />4.39 <br />0.00010 <br />62.79 <br />38.76 <br />0.0202 <br />14 <br />16.3 <br />390 <br />30 <br />25 <br />0.45 <br />0.49 <br />2.279096 <br />16.7 <br />4.33 <br />9.86 <br />0.05 <br />0.9 <br />4.99 <br />0.00011 <br />81.39 <br />50.24 <br />0.0229 <br />15 <br />10.1 <br />350 <br />30 <br />25 <br />0.45 <br />0.49 <br />2.161396 <br />16.7 <br />4.33 <br />9.35 <br />0.05 <br />0.9 <br />4.74 <br />0.00011 <br />47.83 <br />29.52 <br />0.0217 <br />16 <br />25 <br />450 <br />30 <br />25 <br />0.45 <br />0.49 <br />2.444642 <br />16.7 <br />4.33 <br />10.58 <br />0.05 <br />0.9 <br />5.36 <br />0.00012 <br />133.90 <br />82.65 <br />0.0246 <br />17 <br />22.7 <br />350 <br />30 <br />25 <br />0.45 <br />0.49 <br />.2.161396 <br />16.7 <br />4.33 <br />9.35 <br />0.05 <br />0.9 <br />4.74 <br />0.00011 <br />107.49 <br />66.35 <br />0.0217 <br />18 <br />7.3 <br />250 <br />30 <br />25 <br />0.45 <br />0.49 <br />1.83287 <br />16.7 <br />4.33 <br />7.93 <br />0.05 <br />0.9 <br />4.02 <br />0.00009 <br />29.31 <br />18.09 <br />0.0184 <br />19 <br />24.2 <br />400 <br />30 <br />25 <br />0.45 <br />0.49 <br />2.307546 <br />16.7 <br />4.33 <br />9.99 <br />0.05 <br />0.9 <br />5.06 <br />0.00012 <br />122.34 <br />75.52 <br />0.0232 <br />20 <br />16.1 <br />350 <br />30 <br />25 <br />0.45 <br />0.49 <br />2.161396 <br />16.7 <br />4.33 <br />9.35 <br />0.05 <br />0.9 <br />4.74 <br />0.00011 <br />76.24 <br />47.06 <br />0.0217 <br />21 <br />6.4 <br />400 <br />30 <br />25 <br />0.45 <br />0.49 <br />2.307546 <br />16.7 <br />4.33 <br />9.99 <br />0.05 <br />0.9 <br />5.06 <br />0.00012 <br />32.36 <br />19.97 <br />0.0232 <br />22 <br />9.8 <br />300 <br />1 30 <br />25 <br />0.45 <br />0.49 <br />2.004151 <br />16.7 <br />1 4.33 <br />1 8..67 <br />0.05 <br />1 0.9 <br />4.39 <br />0.00010 <br />43.03 <br />26.56 <br />0.0202 <br />Average <br />Weighted average <br />Weighted average <br />Total <br />674.2 <br />1.66 <br />1120.56 <br />691.71 <br />0.0076 <br />30 year cover loss (inch): 0.2289 <br />notes: - Horizontal projection of length measured from Figure 1. <br />2- From Fig 2.3 of USDA, 1997. <br />3. From Fig 3.1 of USDA, 1997. <br />4. For low rill/interili erosion class from Table 4-5 of USDA, 1997. <br />5, Calculated using Equatlon 4-1 of USDA,. 1997. <br />8- Calculated from either Equations 4.4 or 4-5 from USDA, 1997. <br />136605 Shaw Environmental, Inc. <br />