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Percolation Test Rate Adjustment <br /> Pipe <br /> Assume 1/3 <br /> void space Boring <br /> d1 <br /> d2 <br /> d1 = 4.5 inch diamenter hole <br /> d2 = 2.0 inch diameter pipe <br /> Adjust = d 1 <br /> d2 * 1/3(d, -dz ) <br /> 2.15 = 4.52 <br /> 22. 1/3(4.52-2.52) <br /> Adjustment: 2.15 <br /> Smallest Change: 0.75 min/6 inch or 0.125 min/in <br /> Multiply by rate adjustment: 2.15 "0.125 min/in = 0.268 min/in <br /> VERSO <br /> NEIL O.ANDERSON&ASSOC.,INC. <br /> W <br /> CEO ECHFACAL SEANCES-BtRa952 <br /> 2H-mm � Q <br /> �2W,x7-sr01 ,$SOL"' <br />