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•H. , 'SAND VOLUME <br /> 1. Upsbpe Volume+ Volume under rockbed+Downsbpe Volume Site B <br /> � a.Upslope Volume:(depth of clean sand+1)x(upsbpe berm) x(mound length)/2=ft' <br /> y.p ft x 10.0 ft x 83.0 ft !2 = 830.0 ft3 <br /> b.Volume under rodcbed: (average depth of sand under rodc)x(rockbed width)x(mound length)=ft' <br /> 12 ft x 10.0 ft x 83.0 ft = 996.0 ft3 <br /> c.Downslope Volume: (depth of dean sand+1}x(downslope bermJ x(mound length)/2=ft' <br /> � 24 ft x 17.0 � ft x 83.0 ft ! 2 = 1693.2 ft' � <br /> � Total cubic feet: = 3519.2 � ft' <br /> 2. Divide ft'by 27 ft3tyd3 to ge1 cubic yards <br /> 3519.2 !27 = 130.3 yds' <br /> 3. Muttiply cubic yards by 1.4 to get weight of sand in tons <br /> 130.3 yds�`1.4 182.5 tons <br /> 4 Add t096 for Conshuc;tability <br /> 182.5 tons x 1.1 = 200.7 tons <br /> A-1 Estlmated 5ewage Flows in GPD <br /> No.of <br /> Bdrms Class I Ciass II Class III Class 1V <br /> 2 300 225 180 6096 of <br /> 3 450 300 218 : the <br /> 4 600 375 256 values <br /> 5 750 450 294 . in the <br /> g 900 525 332 :` Class I, <br /> 7 1Q5p 600 370 II or II <br /> 8 1200 675 408 columns <br /> D-33 Abso on wdth Sizln Table <br /> Perc Rate Sal Texture Loading Rate Absorption <br /> mpi gpolsq ft Ratio <br /> Coarse sand <br /> <5 Loamy sand 420 1.�0 <br /> Med.,Fine sand <br /> 6-15 Sand bam 0J9 1.50 <br /> 16-30 Loam Q.60 2.00 <br /> 31�5 Sift Loam,Siit 0.50 2.40 <br /> 46-60 Clay loam,Sifty 0.45 2.57 <br /> or Sand Cla Loam <br /> 61-120 Sifty or Sandy <br /> Clay or Clay 0.24 5 <br /> >12p• <br /> 'Must be other or rformance. <br /> Page 3 of 5 <br />