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McCAMPBELL ANALYTICAL INC. 110 2nd Avenue South, #D7, Pacheco,CA 94553 <br /> Tele:510-798-1620 F=510-798-1622 <br /> QC REPORT FOR =ROCARBON ANALYSES <br /> Date: 12/23/95 Matrix: Water <br /> I I Concentration (ug/L) I I k Recovery <br /> I Analyte I I Amount RPD <br /> Sample MS MSD I Spiked I MS MSD <br /> [ I <br /> TPH (gas) I 0.0 95.6 104 . 3 I 100 I 96 104 8 .7 <br /> I Benzene I 0 10. 1 9.4 I 10 I 101 94 7.2 <br /> I Toluene I 0 10.2 9.1 I 10 I 102 91 11.4 <br /> Ethyl Benzene I 0 10.1 9. 5 I 10 I 101 95 6.1 <br /> Xylenes I 0 30. 3 30.2 I 30 I 101 101 0.3 I <br /> I ! <br /> I <br /> f <br /> ITPH (diesel) I N/A N/A N/A I N/A I N/A N/A N/A <br /> II I 1 I <br /> TRPH I N/A N/A N/AN/A <br /> I I N/A N/A N/A I <br /> (oil & grease) <br /> Rec. - (MS - Sample) / amount spiked x 100 <br /> RPD (MS - MSD) / IMS + MSD) x 2 x 100 <br />