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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 /> QC REPORT FOR HYDROCARBON ANALYSES <br /> Date 12/13/95 Matrix Water <br /> Concentration (ug/L) Recovery <br /> Analyte Amount RPD <br /> I Sample MS MSD Spiked I MS MSD <br /> TPH (gas) 0 0 86 4 85 7 I 100 86 86 0 8 <br /> Benzene 0 8 7 9 1 10 I 87 91 4 5 <br /> Toluene 0 8 8 9 1 I 10 88 91 3 4 <br /> Ethyl Benzene 0 9 0 9 4 I 10 90 94 4 3 <br /> Xylenes 0 27 5 28 9 I 30 92 96 5 0 <br /> I <br /> ITPH (diesel) N/A N/A N/A I N/A N/A N/A N/A <br /> I I I I I <br /> I <br /> TRPH I N/A N/A N/A I N/A I N/A N/A N/A I <br /> (oil & grease) <br /> I I I ! <br /> t Rec - (MS - Sample) / amount spiked x 100 <br /> APD (MS - MSD) / (MS + MSD) x 2 x 100 <br />