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r <br /> 110 2nd Avenue South, #D7, Pacheco,CA 94553 <br /> McCAMPBELL ANALYTICAL INC. Tele:510-79$-1620 Fax 510-798-1622 <br /> 1 <br /> QC REPORT FOR HYDROCARBON ANALYSES <br />' Date: 05/07/98-05/08/98 Matrix: WATER <br />' 1 I Concentration (mg/L) 1 1 % Recovery 1 <br /> 1 Analyte 15ample I Amount RPD <br /> 1 <br /> ] (#88780) MS MSD I Spiked I MS MSD f <br /> I TPH (gas) 1 0 .0 91.6 95.8 1 100.0 1 91..6 95 .8 4 .5 1 <br />' I Benzene 1 0 .0 10.1 10 .9 1 10.0 1 101.0 109.0 7.6 1 <br /> I Toluene 1 0 .0 10.3 11.1 I 10 .0 1 103 .0 111.0 7.5 1 <br /> 1 Ethyl Benzene 1 0.0 10.5 11.1 I 10.0 1 105 .0 111. 0 5 .6 1 <br /> Xylenes 1 0 .0 31.3 33 .2 1 30.0 1 104.3 13.0 .7 5.9 1 <br /> 1 I I <br /> 1TPH(diesel) 1 0 155 152 1 150 1 103 101 2 .2 I <br /> I I I 1 <br /> f I I ! <br /> I TRPH 1 N/A N/A N/A 1 N/A I N/A N/A N/A 1 <br /> 1 (oil & grease) 1 I I f <br />' % Rec. _ (MS - Sample) / amount spiked x 100 <br /> RPD = (MS - MSD) / (MS + MSD) x 2 x 100 <br /> I <br />