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' 3. AT-GRADE DIAAENSIONS: <br /> Upslope <br /> aD (2.C) 5.2 <br /> NEndslope Endslope <br /> (2.1) .._�-- ._.- ... <br /> .________.__ . . ... __._. ._ - _-.-_'__ '-' 2.1 <br /> 8.0 �:s;;ena,sed:�i.e;.t.r� 8.3 150 8.0 <br /> 3 Dovmsbpe �6.6 <br /> (2.G/ <br /> � <br /> Tocal Lengch j2.K) 166.0 <br /> 4"inspection pipe Note: <br /> Loamy or sandy loam cover <br /> ma[ertal mus[cover media b" <br /> U slo e(2.C) 5•2 16.6 thick,and extend a[least 5' <br /> Downslo a�2.G� beyond dispersal bed(rock), <br /> �"��" � ��'����- plus an additional 6"of topsoit. <br /> --Dispersal�Sed(rocN) <br /> _.._._._ -'�o . ....... _[opsoil <br /> ._ . / :``�`_.................._._. <br /> ��3fi' �-.. ... <br /> � ....,...._ , <br /> .__..� .__._. <br /> '. i:� � :��, ...._......_..-._ <br /> 8.3 _ ......_...___ <br /> Absorption B�d <br /> Width�t.E� <br /> Note: <br /> For 0 to 1%slopes,Absoiption Width is measured from the Pi�e and divided equatty in both directions. <br /> For slopes>t�G,abso�ption Widthis measured downhiU from the Pioe. <br /> 4. APPROXIMATE VOLUME CALCULATtONS: <br /> If rock is used as the distribution media: <br /> A.Rock Area =Absorption Bed Length(1.F) X (Addi[ional rock upslope of lateral.Absorption Bed Width (1.E) <br /> ( 150.0 ft x ( 1.5 ft x 8.3 ft) = 1475.0 ftZ <br /> B. Rock Volume in Cubic Feet=Rock Areo (4.A)by Depth o(Medio(Rock) (1 foot)and divide by 2. <br /> 1475.0 ft'x t ft = 2 = 737.5 ft' <br /> C. Rock Volume in Cubic Yards=Volume in fubic Feet (4.B)divided by 27 737.5 ft3: 27 = 27.3 yd; <br /> D. Add20%forconstructability: 27,3 yd3 X �.� = 32,g yd3 <br /> E. Loamy or Sandy Loam Cover Materio(Volume: <br /> Volume in Cubic Feet=System Width(2.J)X System Length(2.K)X 1.5:2,minus rock volume(4.B) <br /> ( 21.8 ft X 166.0 ft x i.5 :2)• 737.5 ft' = 1976.6 ft' <br /> F. Loamy or Sandy Loam Cover Volume in Cubic Yards=Volume in Cubic Fee[ (4.E)divided by 27 <br /> 1976.6 ft' : 27 = 73,2 yd' <br /> G.Add 20%for constructability: 73,2 yd3 x �,2 = g� g yd3 <br /> H.Topsoil Volume in Cubic Feet=System width(2.J)X System Length(2.K)x 0.5 <br /> 21.8 ft x 166.0 ft x 0.5 = 1809.4 ft3 <br /> I. Topwil Votume in Cubic Yards=Volume in Cubic Feet (4.H)divided by 27 <br /> 1809.4 ft': v = 67.0 yd; <br /> J. Add 20%for cons[ructability: 67.0 yd' x 1.2 = 80.4 yd3 <br /> 5. Comments: <br /> ��a,� �Jr� <br />