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McCAMPBELL ANALYTICAL INC 110 2nd Avenue South, #D7, Pacheco, CA 94553 <br /> Telc 510-798-1620 Fax 510-798-1622 <br /> '0 <br /> QC REPORT FOR HYDROCARBON ANALYSES <br /> Date. 09/29/95 Matrix Soil <br /> 1 <br /> Concentration (mg/kg) % Recovery <br /> Analyte Amount RPD <br /> Sample MS MSA Spiked MS MSD <br /> TPH (gas) 0.000 1.996 2.023 2 03 98 100 3.3 <br /> Benzene 0 000 0.204 0.198 0.2 102 99 3.0 <br /> Toluene 0.000 0.202 0.202 0.2 101 101 0.0 <br /> Ethylbenzene 0.000 0.204 0.196 0.2 102 98 4.0 <br /> Xylenes 0 000 0.636 0.616 0.6 106 103 3.2 <br /> ' TPH (diesel) Q <br /> 302 305 300 101 102 0 9 <br /> TRPH N/A N/A N/A N/A N/A N/A N/A <br /> (oil & grease) / / <br /> % Rec = (MS - Sampte) / amount spiked x 100 <br /> 1 RPD = (MS - MSD) / (MS + MSD) x 2 x 100 <br />