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110 2nd Avenue South, #D7,Pacheco,CA 94553 <br />' McCAMPBELL ANALYTICAL INC 7Tele 510-798-1620 Fax 510-798-1622 <br /> QC REPORT FOR HYDROCARBON ANALYSES <br /> ' Date. 09/24/95 Matrix. Water <br /> ' Concentration (ug/L) % Recovery <br /> Analyte Amount RPB <br /> Sample MS MSD Spiked MS MSD <br /> TPH (gas) 0 0 110.7 106.1 100 111 106 4.2 <br /> ' Benzene 0 9 9 9.5 10 99.0 95.0 4 1 <br /> Toluene 0 9 9 9.3 10 99 0 93.0 6 2 <br /> Ethyl Benzene 0 9 7 9 2 10 97.0 92.0 5.3 <br /> Xylenes 0 30 7 29 1 30 102 3 97.0 5 4 <br /> 1 <br /> TPH (diesel) N/A N/A N/A N/A N/A N/A N/A <br /> TRPH N/A N/A N/A N/A N/A N/A N/A <br /> ' (oil & grease) <br /> ' % Rec = (MS - Sample) / amount spiked x 100 <br /> RPD = (MS - MSD) / (MS + MSD) x 2 x 100 <br /> 1 <br />