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McCAMPBELL ANALYTICAL INC. 110 2nd Avenue South, #D7,Pacheco,CA 94553 <br /> Tele:510-798-1620 Fax:510-798-1622 <br /> QC REPORT FOR HYDROCARBON ANALYSES <br /> Date: 09/28/98-09/29/98 Matrix: WATER <br /> Concentration (mg/L) I I % Recovery <br /> I Analyte ISample I Amount I RPD <br /> 1 (#95802) MS MSD I Spiked I MS MSD <br /> I 1-1 <br /> TPH (gas) 1 0.0 91.2 92.0 I 100.0 I 91.2 92 .0 0 .9 I <br /> Benzene 1 0.0 10.0 9.8 I 10.0 1100.0 98.0 2 .0 I <br /> Toluene 1 0.0 10.0 9.9 I 10 .0 1100.0 99.0 1.0 <br /> Ethyl Benzene 1 0 .0 10.0 .10.0 I 10 .0 1100.0 100.0 0.0 <br /> Xylenes 1 0.0 30 .7 30.5 I 30.0 102 .3 101.7 0 .7 <br /> I <br /> I <br /> ITPH(diesel) 1 0 .0 163 155 150 I 109 104 4.9 <br /> I <br /> I TRPH I N/A N/A N/A I N/A I N/A N/A N/A <br /> I (oil grease) I I I <br /> I I I <br /> I <br /> 8 Rec. _ (MS - Sample) / amount spiked x 100 <br /> RPD = (MS - MSD) / (MS + MSD) x 2 x 100 <br /> I <br /> I <br /> l <br /> I <br />