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4. MOUND SIZING <br /> A. Calculate Clean Sand Lift: 3 feet minus Depth to Limiting Condition (1.C) = C(eon Sond Lift (1 ft minimum) <br /> 3.0 ft - 1.7 ft = 1.3 ft <br /> B. Calcutate Upstope Height: Clean Sand Lift (4.A) +media depth (1 ft.) +cover (1 ft.) =Upslope Height <br /> 1.3 ft + 1.0 ft + 1.0 ft= 3.3 ft <br /> D-3d:Slope blultiplier Table <br /> Land 5(opQ� 0 � 2 3 4 5 4 7 8 9 10 1f 12 13 14 15 16 17 18 19 20 21 22 23 l4 15 <br /> Upslope 3:i 3.i�: 2.'vl 2.83 2.75 Z.58 2.61 2.Sa 2.aa 2.�< L35 ..31 Z.25 2.�t 2.i7 1.13 ZA9 2.u5 LO? 2.0o 1.97 1.95 1.53 i.i t.ev 1.87 1.85 <br /> Berni R._ib �i:l 4.0.� 3.65 3.70 3.57 3.�i5 3.33 3.Z3 3.12 3.:3 2.9-1 2.55 2JE i?G 2.62 2.55 2.d8 L41 2.35 2.29 2.23 2.18 2.13 Z.6d 2.G I.id 1.93 <br /> l.and Slope'=.. 0 1 2 3 4 5 5 7 8 9 10 I I 12 13 Id 15 16 17 I8 19 20 21 22 23 24 25 <br /> Uot•JnSlOpe ;:I ?.�C 3.09 3.15 3.3D 3.JI 3.53 't.55 3.80 3.95 J.11 d.29 d..t8 d.69 J.95 5.1d 5.55 5.88 61d 6.63 7.p.1 7.d7 7.93 8.d2 8.93 9..76 t0.Q2 <br /> Berni Ratio -�:I .:.�10 J.17 4 i5 d.Si 4.76 S.GO 5.26 5.56 S.�d 6.25 6.67 7.id 7.69 8.29 8.92 v.S7 li�.�d 10.5-t U.67 12.:2 13.19 53.99 S.i.?Z 15.67 1f,5-1 17..W <br /> �. Setect Upslope Berm Mu(tip(ier <br /> (based on land slope): 2•4$ (figure D-34) <br /> D. Calculate Upslope Berm Width: Multiplier (4.C)X Ups(ope Mound Height (4.B) = Ups(ope Berm Width <br /> 2.48 ft X 3.3 ft = 8.0 ft <br /> E. talculate Drop in Elevation Under Bed: Bed Width (2.B) X Lcmd Slope (1.D) : 100=Drop (ft) <br /> 10.0 ft X 15.00 % : 100= 1.50 ft <br /> F. Calculate Downs(ope Mound Height: Upslope Height (4.B) +Drop in Elevation (4.E) =Downslope Height <br /> 3.3 ft + 1.50 ft = 4.8 ft <br /> � Select Downslope Berm Mul tip(ier <br /> (based on land slope): 5.55 (figure D-34) <br /> H. Calcutate Downslope Berm Width:Multiptier (4.G)X Downs(ope Height (4.F) =Downs(ope Berm Width <br /> 5.55 x 4.8 ft = 27.0 ft <br /> I. Catculate Minimum Berm to Cover Abso�ption Area:Downs(ope Absorption Width (3.6 or 3.C) +4 ft. =ft <br /> 10.0 ft + �� ft = 14.0 ft <br /> J. Design Downs(ope Berm =greater of 4H and 41: 27.0 ft <br /> K. Select Ends(ope Berm Mu(tiptier: 3.00 (usuatly 3.0 or 4.0) <br /> L. Calculate Endslope 8erm (4.K)X Downs(ope Mound Height (4.F) =Endslope Berm Width <br /> 3.00 ft X 4.8 ft = 15.0 ft <br /> M. Calcutate Mound Width: Ups(ope Berm Width(4.D) +Bed Width (2.6) +Downslope Berm Width (4.J) =ft <br /> 8.0 ft + 10.0 ft + 27.0 ft = 45.0 ft <br /> N. Calculate Mound Length: Endslope Berm Width (4.L) +g�d Length (2.C)+ Endslope Berm Width (4.L) =ft <br /> 15.0 ft + 63.0 ft + 15.0 ft = 93.0 ft <br /> 5. ORGANIC LOADING: (Optional} <br /> A. Orgonic Loading = Design Flow X Estimated BOD in mg/L in the effluent X 8.35 = 1,000,000 <br /> 750 gpd X mg/L X 8.35 : 1,000,000 = �lbs BOD/day <br /> B. Calculate System Orgonic Loading: lbs. BOD (5.A) :Bed Area (2.A) = lbs/day/ft2 <br /> �_-�lbs/day = �ft� _ �tbs/day/ft2 <br /> C. Recommended Organic Loading Rate: �lbslday/ftZ <br />