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MCCAMPBELL ANALYTICAL INCT 110 2nd Avenue South, #D7,Pacheco,CA 94553 <br /> Tele 510-798-1620 Fax 510-798-1.622 <br /> QC REPORT FOR HYDROCARBON ANALYSES <br /> Date: 09/26/95 Matrix: Water <br /> Concentration (ug/L) % Recovery <br /> Analyte Amount RPD <br /> Sample MS MSD Spiked MS MSD <br /> TPH (gas) 0.0 102.2 98.6 100 102 99 3.6 <br /> Benzene 0 9.2 8.8 10 92.0 88.0 4.4 <br /> Toluene 0 9.1 8.7 10 91.0 87.0 4.5 <br /> Ethyl Benzene 0 9 8.7 10 90.0 87 0 3.4 <br /> Xylenes 0 28.4 27.7 30 94.7 92 3 2.5 <br /> TPH (diesel) N/A N/A N/A N/A N/A N/A N/A <br /> TRPH N/A N/A A A N N N <br /> / � /A N/A N/A <br /> (O11 & <br /> grease) <br /> % Rec = (MS - Sample) / amount spiked x 100 <br /> RPD = (MS - MSD) / (MS + MSD) x 2 x 100 <br />