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G., DOWNSLOPE BERM WIDTH Slope:- cov«i' 1. If landslope is 1% or more, :: subtract rock layer width from adsorption width ' : to obtain minimum downslope berm toe oesn spa '` ' "'' J' r:r',; :'c. .tr..:I<;1. 6"Topsoil a _ft-10 ft =1 2 feet sem,sou u�o "` .� 2. Calculate Minimum mound Size Wdth a. Determine depth of clean sand fill at v wiaa, Downslope- upslope edge of rock layer: add' Aeon Mdeh Separation 3' --1• S-_ft = /,r feet b. Add depth of clean sand for separation (2a) at upslope edge, depth of rock layer(1 foot) to depth of cover (1 foot) to find the mound height at the upslope edge of rock layer; L,L ft+ift+ lft = 3_s' feet c. Enter table with landslope and upslope bewP dcn berm -6 ratio. Select berm multiplier of 3.14 u sl Width moa .�ax,�' Rockeed � Qar.t4« �ilpsI width d. Multiply berm multiplier by upslope mound P ' width .)Q height to find upslope berm width: } -� r . . y� �� _ �_feet '13 3. X e. Multiply rock layer width by F° Downslope Mdth 1 g 1 landslope to determine drop in elevation; Absorption wda,=2- .L_ °o+ _ _feet fi , X Y1 o x_�1 / 100 � :i: : : ..: ..•..::....:.,n.:,}-; y,J. ...,, r Toy,,J'} .4,.,;: �.� f. Add depth of clean sand for slope Total U;gt,g difference (2e)at downslope edge, to the mound height at the upslope edge of rock layer (2b) to find the downslope height; 3.S ft+ 4 ft= 3•-feet g. Enter table with landslope and downslope berm ratio. Select berm multiplier of H-'? L h. Multiply berm multiplier by downslope mound height to get downslope berm width: x 3,:� = j-�_feet BERM SLOPE mmT1 nms i. Compare the values of step G.1_ t Land and Step G.2h LZ__ Slope, bam��for vadow bum multPE ipliers for Select the greater of the two values as the 1n term slope radon neem slope ratios downslope berm width; 1 4) feet j. Total mound width is the sum of 0 3.0 4.0 5.0 6.0 7.0 3.0 4.0 5.0 6.0 7.0 84 upslope berm (G-2d) 1 3.09 4.17 5.26 6.38 7.53 2.91 3.85 4.76 5.66 6.54 7.41 width plus rock layer width (D.2) 2 3.19 4.35 5.56 6.82 8.14 2.83 3.70 4.34 5.36 6.14 6.90 plus downslope berm width(G.2i); 3 3.30 4.54 5.88 7.32 8.86 2.75 3.57 4.35 5.08 5.79 6.45 ft+ o ft+ )-? _ft = L41_feet a 3.41 6.25 7.89 9.72 2.68 c3.43_ 4.17 4.94 5.46 6.06 k. Total mound length is the sum of upslope 5 3.53 5.00 6.67 8.57 10.77 2.61 3.33 4.00 4.62 5.19 5.71 berm width (G-2d) plus rock layer length(D.3) 6 3.66 5.26 7.14 9.38 12.07 2.54 3.23 3.85 4.41 4.93 5.41 plus upslope berm width(G.2d); 7 3.80 5.56 7.69 10.3.4 13.73 2.48 3.12 3.70 4.23 4.70 5.13 i ft + L41 ft + 12- ft= �.s'_feet 8 3.95 5.88 8.33 11.54 15.91 2.42 3.03 3.57 4.05 4.49 4.88 1 ,- L 4- 1 7 0/ 9 4.11 6.25 9.09 13.04 18.92 2.36 2.94 3.45 3.90 4.30 4.65 10 4.29 6.67 10.00 15.00 2333 2.31 2.86 3.33 3.75 4.12 4.44 Final Dimensions. 11 4.48 7.14 11.11 17.65 30.43 2.26 2.78 3.23 3.61 3.95 4.26 12 4.69 7.69 12.50 21.43 43.75 2.21 2.70 3.12 3.49 3.80 4.08