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. F. ' ABSORPTION WIDTH Absorption ratio: 2 <br /> 1. Absorp6on width equals absorption ratio times rock layer width Rockbed#1 <br /> 2.00 x 10A ft = 20.0 ft J�;�= �.� <br /> G. MOUND SLOPE WIDTH 8 LENGTH(Greater than 19'0) <br /> 1. Drnmslope absorption width=absorption width minus rock layer width <br /> 20.0 feet - 10.0 feet= 10.0 ft <br /> 2. Calculate mound size <br /> UPSLOPE <br /> a.Depth of clean sand at upslope edge of rodc layer=3 feet minus distance to restricting layer(C1) <br /> 3.0 ft - 1.5 ft= 1.5 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 /> 1.5 ft+1ft+1 ft= 3.5 ft <br /> c.Upslope berm multipiier based on land slope(see figure D-34) <br /> Selected bem�multiplier. 2.70 <br /> d.Upslope width=berm multiplier(G2c)6mes upslope mound height(G2b): <br /> 2.70 x 3.5 ft = 9.5 ft <br /> DOWNSLOPE <br /> e.Drop in elevation=rock layer width(D2)times percent landslope(C5)/100 <br /> 10.0 ft x 12.0 °k /100= 1.2 ft <br /> f.Downslope mound height=depth of dean sand for slope difference(G2e) <br /> at downslope rodc edge plus the mound height at the upslope edge of rodc layer(2b) <br /> 1.2 ft + 3.5 ft= 4.7 ft <br /> g.Downslope berm multiplier based on percent land slope(see Figure D-34 <br /> Selected berm multiplier: 5.56 <br /> h.Downslope width=downslope multiplier(G2g)times downslope mound height(G2� <br /> 5.56 x 4.7 = 18.0 ft <br /> i.Select greater of G1 and G2h as the downslope width 18.0 fi <br /> j.Total mound width is the sum of upslope{G2d)width plus rodc layer width(D2)plus downsiope width(G2i) <br /> 9.5 ft+ 10.0 ft+ 18.0 ft= 37.5 ft <br /> k.Total mound length is the sum of upslope width(G2d)plus rodc layer length(D3)plus upslope width(G2d) <br /> 9.5 ft + 40.0 ft+ 9.5 ft= 59.0 ft <br /> Final Dimensions (slope>1°�) 37.5 ft x 59.0 ft <br /> I hereby cet�ify that all work has been oompleted in accordance with all applicable ordinances,rules&laws. <br /> ,,,�',�`'�--"'�� (signature) 810 picense#) 9114l2007 (date) <br /> �" <br /> . <br /> Page 2 of 5 <br />