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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 : 06/12/98 Matrix: WATER <br />' I Concentration (mg/L) Recovery <br /> Analyte Isample I Amount } RPD <br /> } I (n90285) MS MSD Spiked I MS MSD <br /> I I <br /> I TPH (gas) I 0 .0 94 . 9 93 .2 I 100 .0 I 94 . 9 93 .2 1 .8 I <br />' I Benzene I 0 .0 9 .5 9 .3 I 10 .0 } 95 . 0 93 . 0 2 .1 } <br /> I Toluene I 0 . 0 9 .7 9 .5 I 10 .0 } 97 . 0 95 . 0 2 . 1 <br /> Ethyl Benzene I 0 . 0 9 . 9 9 . 8 I 10 .0 I 99 . 0 98 .0 1 .0 <br />' I Xylenes I 0 . 0 29 . 9 29 . 5 I 30 . 0 I 99 .7 98 .3 1 .3 <br /> I <br /> ITPH (diesel) I 0 .0 160 159 I 150 I 107 106 0 . 6 <br /> } I I I <br /> TRPH l N/A N/A N/A I N/A I N/A N/A N/A I <br /> 1 i (oil & grease) <br /> 7 Rec. _ (MS - Sample) / amount spiked x 100 <br /> RFD = (MS - MSB) / ,MS + ms D) x 2 x 100 <br /> 1 <br />