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4. MOUND SIZING <br /> A. Calculate Clean Sand lift: 3 feet minus Depth to Limiting Condition (1.C)=Clean Sand Lift (1 ft minimum) <br /> 3.0 ft - 1:8 ft = 1.2 ft <br /> B. Calculate Upslope Height:Clean Sand Lift (4.A)+media depth (1 ft.)+cover (1 ft.)=Upslope Height <br /> 1.2 ft + 10 ft + 1.0 ft= 3.2]ft <br /> Select Upslope Berm Multiplier <br /> C. (based on land slope): 4.00 (figure D-34) <br /> D. Calculate Upslope Berm Width:Multiplier (4.Q X Upslope Mound Height (4.6)=Upslope Berm Width <br /> 4.00 1 x 3.2 ft = 12,0 ft <br /> L Calculate Drop in Elevation Under Bed.-Bed Width (2.6) X Land Slope (1.D)+100=Drop (ft) <br /> 10.0 1 x 8.0 % + 100- 0.8 ft <br /> F. Calculate Downslope Mound Height.Upslope Height (4.6)+Drop in Elevation (4.E)-Downslope Height <br /> 3.2 ft + 0.8 ft = 4.0 ft <br /> Select Downslope Berm Multiplier <br /> G. (based on land slope): 5.88 (figure D-34) <br /> H. Calculate Downslope Berm Width:Multiplier (4.G)X Downslope Height (4.17)=Downslope Berm Width <br /> 5.88 1 x 4.0 ft = 20:0 ft <br /> 1. Calculate Minimum Berm to Cover Absorption Area:Downslope Absorption Width (3.6 or 3.C)+4 ft. =ft <br /> 10:0 ft + ft = 14.0 ft <br /> J. Design Downslope Berm -greater of 4H and 41: 20.0 ft <br /> K. Select Endslope Berm Multiplier: 1 3-00 (wally 3.0 or 4.0) <br /> L Calculate Endsiape Berm (4.K)X Downslope Mand Height (4.F)=Endslope Berm Width <br /> 3.00 1 x 4.0 ft = 12.0 ft <br /> M.Calculate Mound Width:Upslope Berm Width(4.D)+Bed Width (2.6)+Downslope Berm Width (4.J)=ft <br /> 12.0 1 ft + 10.0 ft + 20.0 ft - 42.0 ft <br /> N. Calculate Mound Length:Endslope Berm Width (4.1-)+Bed Length (2.C)+Endslope Berm Width (4.1-)=ft <br /> 12.0 ft + 37.5 ft + 12.0 ft = 61.5 ft <br /> D•34:S1w MukiOw Todds <br /> Lind Slope% 1 0 1 1 1, 2.1,3 '1 4 1>5 1 6 1 7 1 8 1 9 1 10 -111 12 1 13 1 14 1 15 1 16 1 17 1 18,1_19 1 20 1 31-1 22 1 23 1 24 1 25 <br /> UpSlope 3:1 3.OD 2.91 2.83 L75 2.68 2.61 2.S4 2.48 2.42 2.36 2.31 2.26 2-21 2.17 2.13 2.G9 L061 2.03 1 LOCI 1.97 11.9511.931 1.91 1 1.89 I 1.87 I 1.85 <br /> Berns Rad10 4:1 4 3AS 3.70 3.57 3.fi 3.33 3.23 3.12 3.03 2.94 2-86 2:78 7-70 2.62 2.55 2.46 L41 I L35 I L29 I L23 12.18 L13 LLOB I 2.03 11.98 11.93 <br /> Lind-Slope% 1 0 1-1 1 2 1 3 1 4 1 5 1 6 1 7 1 8 1 9 1 10 1 It 1 12 113 1:14 1 15 1 16 1 17 1 38 1 19 1 20 1 21 1 22 23 1 24 1 25 <br /> DO'il1 kve 3:1 LODI 3.09 3.15 3.30 3.4I 3.53 3.66 3.80 3.95 4.11 4.29 4.48 4.69 4.95 5.24 5.55 5.88 1 6.24 16.63 17.04 1 7.47 I 7.93 I 8.12 I L93 I 9.•16 I AM <br /> Berm fiatlo 41I 4.OD 4.17.1.35 4.54 4.76 S.00 5.26 5:36 5:88 L25 6.67 7.1.1 7.64 8.29 8.92 9.97 10.7a IL941 11.67 1242 13.19 13.99 114.82115.67116.54 117.W <br /> 5. ORGANIC LOADING:(Optimal) <br /> A. Organic Loading = Design Flow X Estimated CBOD in mg/L in the effluent X 8.35+1,000,000(See Table 111) <br /> I X1 _1mg/L X 8.35+1,000,000 = lbs CBOD/day <br /> L Calculate System Organic Loading:lbs C13W (5.A)+Bed Area (2.A) =lbs/day/fe <br /> lbs/day + fe - lbs/day/fe <br /> Table III (7083.4030) <br /> Treatment CBOD (mg/l.) <br /> Level A 15 <br /> Level B 25 <br /> Level C 125 <br />