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G. MOUND SLOPE WIDTH 8 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 si2e <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 - 1.8 ft= 1.2 feet <br /> b. Mound height at the upslope edge of rock layer=depth of clean sand for separation(G2a) <br /> at upslope edge ptus depth of rock layer(1 foot)to depth of cover(1 foot) <br /> 1.2 ft+ 1 ft+ 1 ft= 3.2 feet <br /> c. Upslope berm multiplier based on land slope(see figure D-34) <br /> Select berm multiplier of 3.12 . <br /> d. Upslope width=berm muitiplier(G2c)times upsiope mound height(G2b): <br /> 3.12 x 3.2 ft = 10.0 feet <br /> DOWNSLOPE <br /> e.Drop in elevation=rodc layer width(D2)times percent landslope(C5)/100 <br /> 10 ft x 7 % !100= 0.7 feet <br /> f. Dowmslope mound height=depth of clean sand for slope difference(G2e) <br /> at downslope rock edge plus the mound height at the upslope edge of rodc layer(2b) <br /> 0.70 ft + 3.2 ft= 3.9 feet <br /> g. Downslope berm multiplier based on percent land slope(see Figure D-34) 5.56 <br /> h. Downslope width=downslope multiplier(G2g)times downslope mound height(G2� <br /> 5.56 x 3.9 = 21.0 feet <br /> i. Select greater of G1 and G2h as the downslope width 21.0 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+ 21.0 ft= 41.0 feet <br /> k.Total mound length is the sum of upslope width (G2d)plus rock layer length(D3) <br /> plus upslope width(G2d) <br /> 10.0 ft + 62.0 ft+ 10.0 ft= 82.0 feet <br /> Final Dimenslons (slope>1%) 41.0 ft x 82.0 ft <br /> I hereby certify that I have completed this work in accordance with all applicable ordinances, rules and laws <br /> �— (signature) 810 (license#) Q a a �(date) <br /> P e2of6 <br />