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110 2nd Avenue South,#137,Pacheco,CA 94553 <br /> IMcCAMPBELL ANALYTICAL INC Tele 510-798-1620 Fax 510-798-1622 <br /> 1 <br /> QC REPORT FOR HYDROCARBON ANALYSES <br />' Date 06/27/97 Matrix Soni. <br />' I I concentration (mg/kg) 1 $ Recovery <br /> Analyte I Sample Amount I RPD <br /> I (#75868) MS MSD Spiked I MS MSD <br /> TPH (gas) 1 0 000 1 731 1 753 2 03 85 86 1 3 <br /> Benzene 0 000 0 162 0 164 0 2 81. 82 1 2 <br />' I Toluene l 0 000 0 172 0 172 0 2 I 86 86 0 0 1 <br /> Ethylbenzene 10 000 0 164 0 164 1 0 2 82 82 0 0 1 <br /> Xylenes 1 0 000 0 490 0 490 0 6 82 82 0 0 <br /> TPH (diesel) 0 328 332 300 109 111 1 4 <br />' TRPH 0 0 22 8 22 5 20 8 I 110 108 1 3 1 <br /> 1 (oil and grease) <br /> 1 I I 1 I <br />' Rec = (ms - Sample) / amount spikea x 100 <br /> RPD = (MS - MSD) / (MS + MSD) x 2 x 100 <br /> 1 <br /> 1 <br />