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r] <br /> LDaily Flow (ADF) of sewage and multiplied by the Soil Factor (SF) to determine the lineal feet <br /> of leachline required: <br /> 2000 BTC X 16 tanks + 30,000 ADF= 62,000 X .225 5F = 13,950 lineal R of leach line. <br /> Each restroom should have four - 2000 gallon tanks and 12 - 100 ft Ieachlines, totaling 4,800 <br /> lineal ft of leachline. Seepage pit equivalents must be used for additional percolative capacity. <br /> Seepajge Pit Test Data <br /> The data obtained from the slowest of the two seepage pit perc tests indicates a daily <br /> absorptive capacity of 556.1 gals for each 60" diameter X 25' (23') deep pit: <br /> The total volume of water absorbed in the measurement interval is calculated from the hole <br /> diameter and the fall in the water level during this interval. Dividing the gallonage absorbed <br /> by the average absorption area in sq ft, we arrive at absorbed gals/sq ft/time. <br /> Multiplying by an extrapolation factor to arrive at absorption for 24 hrs, a formula for the <br /> falling head test is <br /> Q = 20FD/Lt where <br /> Q = gals of effluent/sq ft of seepage pit sidewail <br /> F = fall of water level (ft) <br /> D = dia of hole (ft) <br /> L = avg ht (ft) of water column during measurement interval <br /> t = time interval (hrs) <br /> 5 <br /> Vali earch <br /> y�b� <br /> k <br />