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1 <br /> 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: 10/02/98 Matrix: AIR <br /> ' I I Concentration (mg/L) I I % Recovery <br /> Analyte (Sample I Amount I RPD 1 <br /> ' 1 1 (#96225) MS MSD I Spiked I MS MSD <br /> 1 I 1 I <br /> I TPH (gas) 1 0.0 93 .6 94.2 1 100.0 1 93 .6 94 .2 0 .6 <br /> ' 1 Benzene 1 0 . 0 10.3 10.1 I 10.0 1103.0 101.0 2 .0 <br /> I Toluene 1 0.0 10 .4 10.2 1 10.0 1104 .0 102 .0 1.9 I <br /> I Ethyl Benzene 1 0.0 10 .5 10 .4 I 10.0 1 105.0 104.0 1.0 1 <br /> ' 1 Xylenes 1 0 .0 31.6 31.3 I 30.0 1105.3 104 .3 1 .0 I <br /> I I I <br /> l <br /> ITPH(diesel) I N/A N/A N/A I N/A I N/A N/A N/Aie I I <br /> I <br /> 1 I I I <br /> I TRPH 1 N/A N/A N/A I N/A 1 N/A N/A N/A <br /> ' 1 (oil & grease) I I I <br /> I I 1 <br /> ' Rec. _ (MS - Sample) / amount spiked x 100 <br /> RPD (MS - MSD) / (MS + MSD) x 2 x 100 <br /> 1 <br /> 1 . <br /> 1 <br />