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. 1'�Z+.���r�`� <br /> F. ABSORPTION WIDTH Absorption ratio: 2.67 <br /> ' 1. Absorption width equals absorption ratio times rock layer width <br /> 2.67 x 10.0 ft = 27.0 ft <br /> G. MOUND SLOPE WIDTH 8 LENGTH(Greater than 1%) <br /> 1. Downslope absorption width=absorption width minus rock layer width <br /> 27.0 feet - 10.0 feet= 17.0 ft <br /> 2. Calculate mound size <br /> UPSLOPE <br /> a.Depth of clean sand at upslope edge of rock layer=3 feet minus distance to restricting layer(C1) <br /> 3.0 ft - 1.3 ft= 1.7 ft <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 rodc layer(1 foot)to depth of cover(1 foot) <br /> 1.7 ft+1ft+1 ft= 3.7 ft <br /> c.Upslope berm multiplier based on land slope(see 6gure D-34) <br /> Selected berm multiplier: 3.23 <br /> d.Upslope width=berm multiplier(G2c)times upslope mound height(G2b): <br /> 3.23 x 3.7 ft = 12.0 ft <br /> DOWNSLOPE <br /> e.Drop in elevation=rock layer width(D2)times percent landslope(C5)I 100 <br /> 10.0 ft x 6.0 % I 100= 0.6 ft <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 /> 0.6 ft + 3.7 ft= 4.3 ft <br /> g.Downslope berm multiplier based on percent land slope(see Figure D-34 <br /> Selected berm multiplier: 4.46 <br /> h.Downslope width=downslope multiplier(G2g)times downslope mound height(G2fl <br /> 4.46 x 4.3 = 19.0 ft <br /> i.Select greater of G1 and G2h as the downslope width 19.0 ft <br /> j.Total mound width is the sum of upslope(G2d)width plus rodc layer wi�th(D2)plus downslope width(G2i) <br /> 12.0 ft+ 10.0 ft+ 19.0 ft= 41.0 ft <br /> k.Totai mound length is the sum of upslope width(G2d)plus rock layer length(D3)plus upslope width(G2d) <br /> 12.0 ft + 75.0 ft+ 12.0 ft= 99.0 ft <br /> Final Dimensions (slope>1%) 41.0 ft x 99.0 ft <br /> I hereby ceRify that all wo�k has been completed in accordance with all applicable ordinances,rules&laws. <br /> (signature) 81U (license#) /��'�[� (date) <br /> Page 2 of 5 <br />