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110 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 05/08/97 Matrix Water <br /> Concentration (mg/L) I I % Recovery <br /> Analyte ! Sample I Amount I RPD <br /> 1 (#76117) MS MSD I Spiked f MS MSD <br /> TPH (gas) I 0 0 99 2 99 6 100 0 I 99 2 99 6 0 5 <br /> Benzene I 0 0 9 3 9 2 I 10 0 I 93 0 92 0 1 1 I <br /> [ Toluene I 0 0 9 5 9 3 I 10 0 I 95 0 93 0 2 1 <br /> Ethyl Benzene I 0 0 9 5 9 4 I 10 0 I 95 0 94 0 1 1 <br /> j Xylenes 0 0 28 7 28 6 I 30 0 I 95 7 95 3 0 3 <br /> I I I i I <br /> ITPH (diesel) 0 145 148 150 j 97 99 1 7 <br /> I I I II <br /> TRPH I N/A N/A N/A I N/A I N/A N/A N/A <br /> (oil & grease) <br /> I I i I 1 <br /> Rec (MS - Sample) / amount spiked x 100 <br /> RPA (MS - MSD} / (MS . MSD) x 2 x 100 <br />