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Trench and Bed Worksheet <br /> All bozed r�cfangles must be entered,the r�st will be calculated. <br /> 1. AVERAGE DESIGN FLOW <br /> A. Estimated 900 gpd(see figure A-1) <br /> or measured x 1.5 safe facto� = 0 gpd � <br /> B. Septic tank capacity 2250 g�llons � <br /> im wage ows in <br /> Number of <br /> Bedrooms Class I Class II Class Iil Class IV • <br /> 2 300 225 180 60°k 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 i l or I I <br /> 8 1200 675 408 columns <br /> 2. SOILS(Site evaluation data) <br /> C. Depth to restricting layer= 03 feet <br /> D. Ma�dmum depth of s stem Item C-3 ft= 0 feet <br /> E. Texture sand Percolabon rate mpi <br /> F. SSF 0.83 ft�/gpd(see figure D-15) <br /> G. %Land siope 0 °� <br /> D-15 Soil Characterisitcs 8�SSF C-1 Se ic Tank Ca ac' in Gallons <br /> Perc Rate Soil Tecture SSF Number of Minimum Capacity with Capacity with <br /> mpi sq ft/ pd Bedrooms C aa Garti.Disp. Dis .and Lift <br /> <0.1 ' Coarse sand 0.83 2 or less 750 1125 1500 <br /> 0.1-5 Medium sand 0.83 3 or 4 1000 1500 2000 <br /> Loamy sand 5 or 6 1500 2250 3000 <br /> 0.1-5" Fine sand 1.67 7,8 or 9 2000 3000 4000 <br /> 6-15 Sandy loam 1.27 <br /> �6-3� Loam �.6] D-g Soil Chanctcristice and Soil aizing <br /> facton(SSF)for GnveLLess Pipe <br /> 31 -45 Siltloam,silt 2.00 �,�,�„�� ,,,,6,,,�,� <br /> 46-60 Ciay loam, 2.2p `"""°'`sn"�'' sa�e"`'"`� �ti",ia`'Y <br /> r��a�n�,o t� c�,�sa,a <br /> sandy Clay a,�os n.tm��„sY,a o.�s <br /> w,a <br /> or si�ty day o,��s A� ��+•• o b <br /> 61 -120**' Clay,sandy 4.20 i`�30 �i`�" o's��, <br /> or silty day ,�`"�s ���s+�'�' �h� <br /> te iobo o t.��„�c�a o ia <br /> >120'�"' -��i ''��� <br /> ���«�.it,�,ecr^ c�� <br /> 'No trench>25°�of total system �„y o� <br /> "Soil with>50%fine sand particles •�����rQ�,ape���,�,�. <br /> UxayAansfarrapidlyp���W eacils <br /> "*A mound must be used "Shc ha.�in 50'R Q mcrc Inl c s�id�vcy tinc�axl <br /> »•Scal N�flh�aoMy,h a Fxtc�ta�je d day f�r <br /> '**`An other or rformance s stem inslallatim d a aacWard Ingrouur�d.rystcm <br /> Page 1 of 2 <br />