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110 2nd Avenue South,#D7,Pacheco, CA 94553 <br /> McCAMPBELL ANALYTICAL INC Tele 510-798-1620 Fax 510-798-1622 <br /> • <br /> QC REPORT FOR HYDROCARBON ANALYSES <br /> Date 02/07/97 Matrix Water <br /> Concentration (mg/L) I I Recovery <br /> Analyte Sample I Amount I RPD <br /> I (#73479) MS MSD I Spiked I MS MSD <br /> I I I I <br /> I I I I <br /> TPH (gas) I 0 0 90 0 89 0 1 100 0 I 90 0 89 0 1 2 <br /> Benzene I 0 0 9 7 9 4 10 0 I 97 0 94 0 3 1 <br /> Toluene ( 0 0 9 9 9 7 10 0 f 99 0 97 0 2 0 <br /> I Ethyl Benzene I 0 0 10 1 9 9 I 10 0 101 0 99 0 2 0 <br /> Xylenes I 0 0 30 4 29 7 I 30 0 101 3 99 0 2 3 f <br /> I I I I I <br /> ITPH (diesel) N/A N/A N/A I N/A I N/A N/A N/A <br /> TRPH I N/A N/A N/A I N/A I N/A N/A N/A <br /> (oil & grease) I I <br /> I I I I <br /> k Rec (MS - Sample) / amount spiked x 100 <br /> RPD = (MS - MSD) / (MS + MSD) x 2 x 100 <br />