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H. SAND VOLUME <br /> 1. Upslope Volume+ Volume under rockbed+Downslope Volume Site A <br /> a.Upslope Volume:(depth of clean sand+1)x(upsiope berm) x(mound length)/2=ft3 <br /> 2.2 ft x 10.4 ft x 83.8 ft /2 = 958.7 ft3 <br /> b.Volume under rockbed: (average depth of sand under rock)x(rockbed width)x(mound length)=ft3 <br /> 1.5 ft x 10.0 ft x 83.8 ft = 1257.0 ft3 <br /> c.Downslope Volume: (depth of clean sand+1)x(downslope berm)x(mound length)/2=ft3 <br /> 2.8 ft x 20.0 ft x 83.8 ft / 2 = 2346.4 ft3 <br /> Total cubic feet: = 4562.1 ft' <br /> 2. Divide ft3 by 27 ft31yd3 to get cubic yards <br /> 4562.1 /27 = 169.0 yds3 <br /> 3. Multiply cubic yards by 1.4 to get weight of sand in tons <br /> 169.0 yds3`1.4 236.6 tons <br /> 4 Add 10%for Constructability <br /> 236.6 tons x 1.1 = 260.2 tons <br /> A-1 Estimated Serrage 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 /> 6 900 525 332 Class I, <br /> 7 1050 600 370 II or II <br /> 8 1200 675 408 columns <br /> D-33 Abso tion Width Sizin Table <br /> Perc Rate Soil Texture Loading Rate Absorption <br /> mpi 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 /> .'. : ::, v� . _. ; -�:.�. <br /> Page 3 of 5 �"'`M'� �� <br /> �� , ,. �,� <br />