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T110 2nd Avenue South,#D7,Pacheco,CA 94553 <br /> McCAMPBELL ANALYTICAL INC Tele 510-798-1620 Fax 510-798-1622 <br /> QC REPORT FOR HYDROCARBON ANALYSES <br /> Date 06/27/97 Matrix Water <br /> Concentration (mg/L) ! Recovery <br /> Analyte Sample Amount RPD <br /> 1 #(77919) MS MSD I Spiked MS MSD <br /> TPH (gas) E 0 0 110 4 109 7 I 100 0 1110 4 109 7 0 6 <br /> Benzene 0 0 10 0 9 8 10 0 100 0 98 0 2 0 <br /> Toluene 0 0 10 3 10 1 10 0 103 0 101 0 2 0 <br /> Ethyl Benzene 0 0 9 7 9 8 10 0 97 0 98 0 l 0 l <br /> Xylenes 0 0 29 2 29 8 30 0 97 3 99 3 2 0 <br /> JTPH (diesel) I 0 1.36 138 I 150 90 92 2 0 <br /> o <br /> TRPH 0 26 5 27 2 23 7 112 115 2 6 <br /> j (oil & grease) <br /> j <br /> I <br /> $ Rec = (MS - Sample) / amounr spiked x 100 <br /> RPD = (MS - MSD) / (vS t MSD) x 2 x 100 <br /> O <br />