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., <br /> � 11/22/02 Page 1 <br /> ' INDIVIDUAL SEWAGE TREATMENT <br /> SYSTEM WORKSHEET <br /> ' Flow Estimated GPD = 300 gallons <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 /> ' Equivalent Rock Depth = 6 Inches <br /> Reduction Factor = 1 <br /> ' <br /> Square Footage Requ�rement = 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 /> ' <br /> ' Absorption Width Sizing <br /> Perc rate Soil Sq.ft. per Gallons per <br /> ' m�i 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 0.79 <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 0.45 <br /> ' <br /> ' <br /> ' <br /> , <br />