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HARNEY LANE SANITARY LANDFILL <br /> SOIL LOSS COMPUTATION USING UNIVERSAL SOIL LOSS EQUATION <br /> USE <br /> 2 ton/acre/year is allowable soil loss per the Environmental <br /> Protection Manual for Landfill Design, Liner Systems and Final <br /> Cover, July 1982 . <br /> UNIVERSAL SOIL LOSS EQUATION <br /> The soil loss equation provides a method for computation of <br /> soil loss. It empirically determines a loss per acre based on <br /> factors from tables multiplied together. Figure 3 presents <br /> the Universal Soil Loss Equation. <br /> SOIL LOSS <br /> Five parameters are used to compute the soil loss load and the <br /> factors to use corresponding to those conditions. The <br /> conditions are: <br /> 1. Slope in meters. The maximum overland distance = 400m <br /> Average surface slopes = 4% S = 1. 1 (Figure 3) <br /> 2 . Soil Texture. Using average 3% organic matter Silty <br /> clay; K = 0. 3 (Figure 3) <br /> 3. Residue Cover. Ungrazed Grassland, 3/4 cover; C = . 01 <br /> (Figure 3) <br /> 4. Erosion Control Practice. None; Use Straight Up Hills; <br /> P = 1 (Figure 3) <br /> 5. Rainfall. From Iso-line map; R = 100 <br /> COMPUTATION: (S x K x C x P x R) x .44 = . 14 tons/acre/year <br /> . 14 < 2 , loss is allowable and not considered more than pre- <br /> project impact on adjacent lands if sediment were to go off <br /> site. <br /> 11 <br />