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G. MOUND SLOPE WIDTH 8�LENGTH (Greaterthan 1%) <br /> 1. Downslope absorption width =absorption width minus rock layer width <br /> 20 feet - 10 feet= 10 feet <br /> 2. Calculate mound size <br /> UPSLOPE <br /> a. Determine depth of clean sand at upslope edge of rock layer=3 feet minus distance to restricting layer(C1) <br /> 3 ft - 2.1 ft= 1 feet <br /> b. Mound height at the upslope edge of rock layer=depth of clean sand for separation (G2a) <br /> at upslope edge plus depth of rock layer(1 foot)to depth of cover(1 foot) <br /> 1 ft+ 1ft+ 1ft= 3 feet <br /> c. Upslope berm multiplier based on land slope(see figure D-34) <br /> Select berm multiplier of 2.78 , <br /> d. Upslope width =berm multiplier(G2c)times upslope mound height(G2b): <br /> 2.78 x 3 ft = 8.0 feet <br /> DOWNSLOPE <br /> e. Drop in elevation=rock layer width(D2)times percent landslope(C5)/100 <br /> 10 ft x 11 % 1100= 1.1 f2et <br /> f. Downslope mound height=depth of clean sand for slope difference(G2e) <br /> at downslope rock edge plus the mound height at the upslope edge of rock layer(2b) <br /> 1.10 ft + 3 ft= 4.1 feet <br /> g. Dovmslope berm multiplier based on percent land slope(see Figure D-34) 4.48 <br /> h. Downslope width=downslope multiplier(G2g)times downslope mound height(G2� <br /> 4.48 x 4.1 = 18.3 feet <br /> i. Select greater of G1 and G2h as the downslope width 19.0 feet <br /> j. Total mound width is the sum of upslope(G2d)width plus rock layer width(D2)plus downslope width (G2i) <br /> 8.0 ft+ 10.0 ft+ 19.0 ft= 37.0 feet <br /> k.Total mound length is the sum of upslope width(G2d)plus rock layer length (D3) <br /> plus upslope width (G2d) <br /> 8.0 ft + 62.0 ft+ 8.0 ft= 78.0 feet <br /> Final Dimensions (slope>1%) 37.0 ft x 78.0 ft <br /> I hereby certify that 1 have completed this work in accordance with all applicable ordinances, �ules and laws <br /> � (signature) 810 (license#) � ��� (date) <br /> P e2of6 <br />