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0 <br /> � Cross Plot 1 - PID Calibration Chart <br /> Y = 42 . 764Ln(x) + 92 .544 ' <br /> 300 <br /> 250 <br /> a 200Ole <br /> •- 150 <br /> m <br /> � 100 T <br /> 50 <br /> 0 <br /> 0. 1 1 10 100 <br /> TPH-G Lab Results (mg/L) <br /> J <br />