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G. MOUND SLOPE WIDTH&LENGTH(Greater than 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 upsiope edge of rock layer=3 feet minus distance to restricting layer(C1) <br /> 3 ft - 1.7 ft= 1.3 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 /> 1.3 ft+1ft+1ft= 3.3 feet <br /> c.Upslope berm multiplier based on land slope(see figure D-34) <br /> Select berm multiplier of 2.94 <br /> d.Upsiope width=berm multiplier(G2c)times upslope mound height(G2b): <br /> 2.94 x 3.3 ft = 10.0 feet <br /> DOWNSLOPE <br /> e.Drop in elevation=rock layer width(D2)times percent landslope(C5)/100 <br /> 10 ft x 9 % /100= 0.9 feet <br /> f.Downslope mound height=depth of dean sand for slope difference(G2e) <br /> at downslope rock edge plus the mound height at the upsiope edge of rock layer(2b) <br /> 0.90 ft + 3.3 ft= 4.2 feet <br /> g.Downslope berm multiplier based on percent land slope(see Figure D-34) 5.18 <br /> h.Downslope width=downslope multiplier(G2g)times downslope mound height(G2f) <br /> 5.18 x 4.2 = 22.0 feet <br /> i. Select greater of G1 and G2h as the downslope width 22.0 feet <br /> j.Total mound width is the sum of upslope(G2d)width plus rock layer width(D2)plus downslope width(G2i) <br /> 10.0 ft+ 10.0 ft+ 22.0 ft= 42.0 feet <br /> k.Total mound length is the sum of upsiope width(G2d)plus rock layer length(D3) <br /> plus upslope width(G2d) <br /> 10.0 ft + 38.0 ft+ 10.0 ft= 58.0 feet <br /> I Final Dimensions (slope>1%) 42.0 ft x 58.0 ft <br /> I hereby certify that I have completed this work in accordance with all applicable ordinances,rules and laws <br /> /�— (signature) 810 (license#) cSh 7/4,3 (date) <br /> Page 2of6 <br />