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" G. MOUND SLOPE WIDTH & LENGTH Landslope > 1% slope (landslope greater than 1%) I - oover 1 i 1. Downslope absorption width = absorption width (F) ,.:: a, ,o0�p a x.r" 6'Topsoil minus rock layer width (D2) "„t, Clean Sand ft �-"7 ft - /0 ft = /R ftMIZIMill -•-•-, Restricting Layer IMIIIMIIIIIIIIIIII Upslope Width(G2d) Rork Width(02) Downslope Width(C2i) III It 2. Calculate mound size N h UPSLOPE a. Depth of clean sand fill at upslope edge of Absorption Wideth-Sutd(F) rock layer = 3 ft minus the distance to restricting layer (Cl) 3ft- f ft = Q, ft b. Mound height at the upslope edge of rock ID-34: SLOPE MULTIPLIER TABLE layer = depth of clean sand for separation (G2a) Land UPSLOPE DOWNSLOPE Slo e, multipliers for various multi lfovarious at upslope edge plus depth of rock layer (1 ft) in slope ratios slopeiersratiros Mus depth of cover (1 ft) 3:1 4:1 5:1 6:1 7:1 8:1 3:1 4:1 5:1 6:1 7:1 t . ft + ift + ift = t-j ft 0 3.0 4.0 5.0 6.0 7.0 8.0 3.0 4.0 5.0 6.0 7.0 =. Upslope berm multiplier based on land slope 1 2.91 3.85 4.76 5.66 6.54 7.41 3.09 4.17 5.26 6.38 7.53 5 ; (n (see figure D-34) 2 2.83 3.70 4.54 5.36 6.14 6.90 3.19 4.35 5.56 6.82 8.14 3 2.75 3.574.35 5.08 5.79 6.45 3.30 4.54 5.88 7.32 8.86 I. Upslope width = berm multiplier (G2c) times 4 2.68 4.17 4.84 5.46 6.06 3.41 4.76 6.25 7.89 9.72 .upslope mound height (G2b): s 2.61 3.33 4.00 4.62 5.19 5.71 3.53 5.00 6.67 8.57 10.77 x 3. VS" ft = )'l ft 6 254 3.23 3.85 4.41 4.93 5.41 3.66 all 7.14 9.38 12.07 DOWNSLOPE 7 2.48 3.12 3.70 4.23 4.70 5.13 3.80 5.56 7.69 10.34 13.73 -'. Drop in elevation = rock layer width (D2) times 8 2.42 3.03 3.57 4.05 4.49 4.88 3.95 5.88 8.33 1154 15.91 )ercent landslope (C5) = 100/ 9 2.36 2.94 3.45 3.90 4.30 4.65 4.11 6.25 9.09 13.04 18.92 J ft x . G %- 100 = • a, ft 10 2.31 2.86 3.33 3.75 4.12 4.44 4.29 6.67 10.00 15.00 23.33 Downslope mound height= depth of clean 11 2.26 2.78 3.23 3.61 3.95 4.26 4.48 7.14 11.11 17.65 30.4( ;and for slope difference (G2e) at downslope 12 2.21 2.70 3.12 3.49 3.80 4.08 4.69 7.69 12.50 21.43 43.75 I -ock edge plus the mound height at the 1pslope edge of rock layer (G2b) Cft-__-/ "_ i.y6 ft+ t C ft= LY. G. ft 4. Downslope berm multiplier based on percent land slop -1, 6./L (see figure D-34) . 1. Downslope width = downslope multiplier 4= Upslope Width(G2d) G2g) times downslope mound height (G2f) ft L. x 7". y6 ft = al ftUpslope Width(G2d) $ Upslope Width(G2d) Rock (D2) ft . Select the greater of Cl and G2h as the _ Length(D3) lownslope width: 1 ft to Downslope Width(G2i) ft . Total mound width is the sum of upslope Absorption Width(F)\_______, vidth (G2d) width plus rock layer width D2) plus downslope width (G2i) Total Length(G2k) ft ft + IU ft + 2l ft = '1_5- ft Total mound length is the sum of upslope width (G2d) )lus rock layer length (D3) plus upslope width (G2d) _-,_ft + 2E ft + /y ft = (,,(go feet - ' -7 7). Final Dimensions: y x 6 , i,-. 171,.- : I hereb��yy,certify that I have completed this work in accordance with applicable ordinances, rules and laws. ///J (signature) -/U (license #) /vl a'%/ (date)