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WCAMPBELL ANALYTICAL INC. 110 2nd Avenue South, #D7, Pacheco,CA 94553 <br /> Tele;510-798-1620 Fax:510-798-162.2 <br /> i <br /> QC REPORT FOR HYDROCARBON ANALYSES <br /> I <br /> I <br /> Date: 12/31/94 Matrix: Water <br /> f <br /> Concentration (ug/L) $ Recovery <br /> Analyte Amount RPD <br /> Sample MS MSO Spiked MS MSD <br /> TPH (gas) 0.0 . 98.9 92.9 100 98.9 92.9 6.3 <br /> Benzene 0 10.7 10.8 10 107.0 108.0 0.9 I� <br /> Toluene 0 10.7 10.6 10 107.0 106.0 0.9 4 <br /> Ethyl Benzene 0 10.7 10.6 10 107.0 106.0 0.9 <br /> Xylenes 0 32.9 31.6 30 109.7 105.3 4.0 <br /> I <br /> TPH (dieselj 0 151 150 ISO 101 100 0.5 r <br /> TRPH N/A N/A N/A N/A N/A N/A N/A <br /> (oil & grease) <br /> r E <br /> I <br /> i <br /> X Rec. _ (MS - Sample) / amount spiked x 100 <br /> i <br /> RPD = (MS - MSD) / (MS + MSD) x Z x 100 <br /> a <br /> A <br /> I <br /> I <br /> I <br /> k <br />