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. H. SAND VOLUME <br /> 1. Upslope Volume+ Volume under rockbed+Downslope Volume g�g <br /> a.Upslope Vdume:(depth of dean sand+1)x(ups�ope berm) x(mound length)/2=ft <br /> 3.0 ft x 11.4 ft x 85.8 fl /2 = 1467.2 ft3 <br /> b.Vdume under rodcbed: (average depth of sand under rock}x(rodcbed width)x(mound length)=ft <br /> 2.3 ft x 10.0 ft x 85.8 ft = 1973.4 ft3 <br /> c.Downslope Volume: (depth of dean sand+1)x(downslope berm)x(mound length)/2=ft3 <br /> 3.6 ft x 16.9 ft x 85,8 fl / 2 = 2610.0 ft' <br /> Total cubic feet: = 605p.g fl3 <br /> 2. Divide ft'by 27 ft3/yd3to get cubic yards <br /> 6050.6 /27 = 224.1 yds3 <br /> 3. Multiply cubic yards by 1.4 to get weight of sand in tons <br /> 224.1 yds3x 1.4 313.7 tons <br /> 4 Add 10%for ConsUuctability <br /> 313.7 tons x 1.1= 345.1 tons <br /> A 1 Estimated Sewage Flows in GPD <br /> No.of <br /> Bdrms Gass I Class II Class III Class IV <br /> 2 300 225 180 60%of <br /> 3 450 300 218 the <br /> 4 600 375 256 values <br /> 5 750 450 294 in the <br /> 6 900 525 332 Class I, <br /> 7 1050 600 370 II or II <br /> 8 1200 675 408 cdumns <br /> D-33 Abso 'on Widdt Sain Table <br /> Perc Rate Soil Texture Loadirg Rate Absorption <br /> mp� 9Pd/s9 ft Ratio <br /> Coarse sand <br /> <5 Loamy s�d 1.20 1.00 <br /> Med.,Fine sand <br /> 6-15 Sand loam 0.79 1.50 <br /> 16-30 Loam p,gp 2,00 <br /> 31-45 Silt Loam,Silt 0.50 2.40 <br /> 46-60 Clay loam,Silty 0.45 2.67 <br /> or Sand Cla Loam <br /> 61-120 Silty or Sandy <br /> Gay or Clay 0.24 5 <br /> >120' <br /> 'Must be other a rformance. <br /> Page 3 of 5 <br />