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G. MOUND SLOPE WIDTH&LENGTH(Greater than 1%) <br /> 1. Downslope absorption width=absorption width minus rock layer width <br /> 27 feet - 10 feet= 17 feet <br /> 2. Calculate mound size <br /> UPSLOPE <br /> a.Determine depth of dean sand at upslope edge of rock layer=3 feet minus distance to restricting layer(C1) <br /> 3 ft - 1.1 ft= 1.9 - 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 /> 1.9ft+1ft+1ft= 3.9 feet <br /> c.Upslope berm multiplier based on land slope(see figure D-34) <br /> Select berm multiplier of F 3.85 <br /> d.Upslope width"=berm multiplier(G2c)times upslope mound height(G2b): <br /> 3.85 x 3.9 ft = 15.0 feet <br /> DOWNSLOPE <br /> e.Drop in elevation=rock layer width(D2)times percent landslope(C5)/100 <br /> 10 ft x 1 % /100= 0.1 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 upslope edge of rock layer(2b) <br /> 0.10 It + 3.9 ft= 4.0 feet <br /> g.Downslope berm multiplier based on percent land slope(see Figure D-34) 4.17 <br /> h.Downslope width=downslope multiplier(G2g)times downslope mound height(G4 <br /> 4.17 x 4.0 = 16.7 feet <br /> i.Select greater of G1 and G2h as the downslope width 17.0 feet <br /> j.Total mound width is the sum of upslope(G2d)width plus rock layer width(D2)plus downslope width(GO) <br /> 15.0 ft+ 10.0 ft+ 17.0 ft= 42.0 feet <br /> k.Total mound length is the sum of upslope width(G2d)plus rock layer length(D3) <br /> plus upslope width(G2d) <br /> 15.0 ft + 62.0 ft+ 15.0 ft= 92.0 feet <br /> Final Dimensions (slope>1%) 42.0 ft x 92.0 ft <br /> 1 hereby certify that I have completed this work in accordance with all applicable ordinances,rules and laws <br /> (signature) 810 (license#) r/v (date) <br /> Page 2 of 4 <br />