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� H. SAND VOLUME <br /> 1. Upslope Volume+ Volume under rockbed+Downslope Volume � <br /> a.Upslope Volume:(depth of clean sand+1)x(upslope berm) x(mound length)/2=ft3 <br /> 25 ft x 12.1 ft x 87.2 ft /2 = 1318.9 ft3 <br /> b.Volume under rockbed: (average depth of sand under rock)x(rockbed width)x(mound length)=ft3 <br /> 1.7 ft x 10.0 ft x 87.2 ft = 1482.4 ft3 <br /> c.Downslope Volume: (depth of clean sand+1)x(downslope berm)x(mound length)I 2=ft3 <br /> 2.9 ft x 18.6 ft x 87.2 ft / 2 = 2351.8 ft3 <br /> Totai cubic feet: = 5153.1 ft3 <br /> 2. Divide ft3 by 27 ft31yd3 to get cubic yards <br /> 5153.1 /27 = 190.9 yds3 <br /> 3. Multiply cubic yards by 1.4 to get weight of sand in tons <br /> 190.9 yds3 x 1.4 267.2 tons <br /> 4 Add 10%for ConsUuctability <br /> 267.2 tons x 1.1 = 293.9 tons <br /> A-1 Estimated Sewage Flows in GPD <br /> No.of , <br /> Bdrms Class I Ciass II Class III Class IV <br /> 2 3U0 '�� 225 � 180~ . 60%of <br /> 3 45t1 300 218 the <br /> 4 60t1 375 2�6 values <br /> 5 750 . 450 294 ' in the <br /> ' 6 90D 525 337 Class I, <br /> 7 105Q 600 370 II or II <br /> 8 12 675 4Ud columns <br /> D•33 Absor 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 /> Page 3 of 6 <br />