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� <br /> , �.��r►. <br /> H. SAND VOLUME <br /> 1. Upslope Volume+ Volume u�der rockbed+Downsiope Volume <br /> a.Upslope Volwne:(depth of clean sand+1)x(upsiope berm) x(mound length)12=ft3 <br /> 2.8 ft x 8.1 ft x 56.2 ft /2 = 637_3 ft3 <br /> b.Volume under rockbed: (average depth of sand urxier rock)x(rockbed width}x(mound length)=ft� <br /> 2.6 ft x 8.0 it x 562 ft = 1186.9 ft3 <br /> c.Dowmslope Volume: (depth of clean sand+1)x{downslope bertn)x(mound length)12=ft3 <br /> 4_5 ft x 43.5 ft x 56.2 ft / 2 = 5476.1 ff3 <br /> Total cubic feet = 7300.4 ft3 <br /> 2. Divide ft3 by 27 ft3tyd3 to get c�ic yards <br /> 7300.4 127 = 270.4 yds3 <br /> 3. Multipty cubic yards by 1.4 to gef weight of sand in tons <br /> 270.4 yds3 x 1.4 378.5 tons <br /> 4 Add 10%for Constructabilit}r <br /> 378.5 tons x 1.1 = 416.4 tons <br /> A-1 Estimated Sewage Flows in GPD <br /> No.of <br /> Bc�ms Class I Class II Class iil Class IV <br /> 2 304 225 '.-:180 60°k of <br /> 3 450 300 218 the <br /> 4 600 375 256 vafues <br /> 5 750 -` 450 294 in the <br /> 6 9Q0 - 525 332 Class I, <br /> 7 1050 " 600 :370 11 or II <br /> 8 #20t1 675 408 columns <br /> D-33 Absor ion Width Sizin Table <br /> Perc Rate Sal Texture Loading Rate Abscxption <br /> mP� gpolsq ft Ratio <br /> Coarse sand <br /> <5 Loamy sand 120 1.00 <br /> Med.,Fine sand <br /> 6-15 San loam 0.79 1.50 <br /> 16-30 Loam O.Sa 2.00 <br /> 31-45 Siltloam,Silt : 0.5a - 2.40 <br /> 46-60 Clay loam,Silty -t1_45 2.67 <br /> or San CI Lo�n <br /> 61-120 Silty or Sandy <br /> ClayorClay _�U2d ' _. >�' 5 <br /> >120` <br /> *Must be other� amance. <br /> Page3of6 <br />