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110 2nd Avenue South, #D7,Pacheco,CA 94553 <br /> MCCAMPBELL ANALYTICAL INC. T Tele:510-798-1620 F=510-798-1622 <br /> • <br />' QC REPORT FOR HYDROCARBON ANALYSES <br />' Date: 02/26/98 Matrix: AIR <br />' I Concentration (mg/L) I I % Recovery <br /> Analyte Isample I Amount I RPD <br /> I (#86102) MS MSD I Spiked I MS MSD <br />' I I <br /> I TPH (gas) I 0.0 95.0 89.4 I 100 .0 I 95 .0 89.4 6.1 <br /> Benzene I 0.0 9.9 9.2 I 10.0 I 99.0 92 . 0 7.3 <br /> Toluene I 0.0 10.1 9.4 I 10 .0 1101 .0 94 . 0 7.2 <br /> Ethyl Benzene I 0 .0 10.2 9.5 I 10.0 1102 .0 95. 0 7.1 <br />' I Xylenes I 0 .0 30.7 28.7 I 30.0 1102 .3 95.7 6 .7 <br /> I I I I i <br /> ITPH(di.esel) I N/A N/A N/A I N/A I N/A N/A N/A <br />' • I I I I <br /> TRPH I N/A N/A N/A I N/A I N/A N/A N/A <br /> (oil & grease) I <br />' %- Rec. _ (MS - Sample) / amount spiked x 100 <br /> RPD (MS - MSB) / {MS + MSD) X 2 x 100 <br /> • <br />