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11/22/02 � <br /> Page 1 <br /> INDIVIDUAL SEWAGE TREATMENT SYSTEM WORKSHEET <br /> Flow Estimated GPD = 300 gailons <br /> � Septic Tank Volume = 1500 gailons <br /> C. SOILS <br /> - Depth to restricting layer= 66 inches <br /> Maximum depth of system (�C1-3ft) = 30 inches <br /> Percolation rate = 30 mpi <br /> Soil Sizing Factor = 2.20 sq.ft./gpd <br /> Land slope = 16 % <br /> DRAINFIELD REQUIREMENTS <br /> Infiltrator Model = Standard Sidewinder Chamber <br /> i Equivalent Rock Depth = 6 Inches <br /> Reduction Factor= 1 <br />� ' <br /> Square Footage RequRement = 660 sq.ft. <br /> Lineal Feet = 220 ft <br /> Number of Trenches = 5.0 ea <br />� Length of Trenches = Varying Lengths, See Drawing Detail <br /> Absorption Wdth Sizin_g <br /> Perc rate Soil Sq.ft. per Gallons per <br /> � Texture PD Da .Ft. <br /> <0.1 Coarse Sand <br /> 0.1 to 5 Sand 0.83 1.20 <br /> 0.1 to 5 Fine Sand 1.67 0.60 <br /> 6 to 15 Sandy Loam 1.27 p.79 <br /> 16 to 30 Loam 1.67 0.60 <br /> 31 to 45 Silt Loam 2.00 0.50 <br /> 46 to 60 Clay Loam 2.20 p.45 <br />