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�1. SAND YOLUME <br /> 1. Upslope Volume+ Volume under rodcbed+ppwnslope Volume <br /> a.Upsfope Volume:(depfh ot dean sand+1}x(upsiope berm) x(mound lengrth)!2=ft3 <br /> 2.0 ft x 10.0 ft x 83.0 ft /2 = 830.0 ft3 <br /> b.Vdume under rockbed: (average depth of sand under rodc)x(rodcbed width}x(mound length)=ft� <br /> 1.4 ft x 10.0 ft x 83.0 ft = 1120.5 ft3 <br /> c.Dovmslope Volume: (depth of dean s�d+1)x(downslope berm)x(mound i�gth)/2=ft3 <br /> 2.7 ft x 21.0 ft x 83.0 ft 1 2 = 2353.1 ft� <br /> Totai cubic feet: = 4303.6 fC� <br /> 2. �vide ft'by 27 ft�/yd3 to get cubic yands <br /> 4303.6 /27 = 159.4 yds' <br /> 3. Mu�iply a�bic yards by 1.4 to g�weigM af sand in tons <br /> 159.4 yds3i 1.4 223.1 tons <br /> 4 Add 10%for Construdability <br /> 223.1 tons x 1.1= 245.5 tons <br /> A 1 Estlmated Sewage Fbws in GPD <br /> No.of <br /> Bdrms Class I Class II Class III Class IV <br /> 2 300 225 180 &0°�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 12(30 675 408 columns <br /> D-33 Abso n YYfdth Slzi Table <br /> Perc Rate Sa1 Texture Loading Rate Absoiption <br /> � 9P�S9 ft Ratio <br /> Coarse sand <br /> <5 Loamy sand 1.20 1.� <br /> Med.,Fne sand <br /> 6-15 bam 0.79 1.50 <br /> 16.30 Loam 0.60 2.00 <br /> 31-45 Siit Loam,Sift 0.50 2.40 <br /> 46-60 Clay loam,Silty 0.45 2.67 <br /> or CI t.o�n <br /> &1-120 Silty or Sandy <br /> Clay or Clay 0.24 5 <br /> >12p' <br /> 'Must be other or <br /> Page 3 of 5 <br />