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110 2nd Avenue South, #D7,Pacheco,CA 94553 <br /> McCAMPBELL ANALYTICAL INC Tete 510-798-1620 F=510-798-1622 <br /> 1 <br />' QC REPORT FOR HYDROCARBON ANALYSES <br />' Date 07/26/97 Matrix water <br />' I Concentration (mg/L) I % Recovery <br /> Analyte I Sample I Amount I RPD <br /> I 1##(78890) MS MSD I Spiked I MS MSD I <br /> TPH (gas) I 0 0 103 7 104 1 1 100 0 1 103 7 104 1 0 3 1 <br />' 1 Benzene I 0 0 9 9 10 2 1 10 0 1 99 0 102 0 3 0 1 <br /> Toluene I 0 0 10 5 10 9 1 10 0 1 105 0 109 0 3 7 1 <br /> Ethyl Benzene 1 0 0 10 8 11 0 1 10 0 1 108 0 110 0 1 8 1 <br /> Xylenes j 0 0 33 3 33 1 30 0 j 111 0 110 3 0 6 <br /> 1 <br /> ITPH (diesel) I N/A N/A N/A I N/A I N/A N/A N/A <br /> 1 TRPH 1 N/A N/A N/A 1 N/A I NIA N/A N/A 1 <br />' 1 (oil & grease) I I <br /> I I I I I <br /> k Rec = (MS - Sample) / amount spiked x 100 <br /> RPD (MS MSD) / (MS + MSA) x 2 x 100 <br /> 1 <br />