Laserfiche WebLink
H. SAND VOLUME <br /> '. Upslope Volume* Volume under rockbed+Downslope Volume Site A <br /> a. Upslope Volume:(depth of clean sand+1)x(upslope berm) x(mound length)I 2=ft' <br /> 2.0 ft x 10.4 ft x 83.8 ft 12 = 871.5 ft3 <br /> b.Volume under rockbed: (average depth of sand under rock)x(rockbed width)x(mound length)=ft� <br /> 1.2 ft x 10.0 ft x 83.8 ft = 1005.6 ft3 <br /> c.Downslope Volume: (depth of clean sand+1)x(downslope berm)x(mound length)/2=ft3 <br /> 2.4 ft x 16.2 ft x 83.8 ft / 2 = 1629.1 ft3 <br /> Total cubic feet: = 3506.2 ft' <br /> 2. Divide ft3 by 27 ft3/yd3 to get cubic yards <br /> 3506.2 127 = 129.9 yds3 <br /> 3. Multiply cubic yards by 1.4 to get weight of sand in tons <br /> 129.9 yds3x 1.4 181.8 tons <br /> 4 Add 10%for Constructability <br /> 181.8 tons x 1.1 = 200.0 tons <br /> A-1 Estimated Sewage Flows in GPD <br /> No.of <br /> Bdrms Class 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 /> g 900 525 332 Class I, <br /> 7 1050 600 370 II or II <br /> g 1200 675 408 columns <br /> D-33 Abso tion Width Sizin Table <br /> Perc Rate Soil Texture Loading Rate Absorption <br /> mP� gpd/sq ft Ratio <br /> Coarse sand <br /> <5 Loamy sand 1.20 1.00 <br /> Med.,Fine sand <br /> 6-15 Sand loam 0.79 1.50 <br /> 16-30 Loam 0.60 2.00 <br /> 31�5 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 /> Clay or Clay 0.24 5 <br /> >120' <br /> 'Must be other or rformance. <br /> � <br /> �i .r; -- - _ ' � ��.��"',,.�.�; <br /> � 5:;5 � .' ' u. '��f �*yu1,'a: <br /> Page 3 of 5 � � <br /> `r`'� <br /> ��� � <br /> �; + �' <br />� � <br />