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McCAMPBELL ANALYTICAL INC 110 2nd Avenue South,#D7,Pacheco,CA 94553 <br /> Tele:510-79&1620 F=510-79&1622 <br /> r <br /> QC REPORT <br /> �. Date: 03/03-03/06/93 Matrix: Water <br /> Concentration (ug/L) % Recovery <br /> Analyte Amount RPD <br /> r Sample MS MSD Spiked MS MSD <br /> TPH (gas) 0.0 99.5 108.7 102 98 107 8.9 <br /> Benzene 0.0 10.4 10.2 10 104 102 1.9 <br /> Toluene . 0.0 10.5 10.4 10 105 104 1.0 <br /> Ethyl Benzene 0.0 10.3 10.1 10 103 101 2.0 <br /> Xylenes 0.0 30.0 29.6 30 100 99 1.3 <br /> TPH (diesel) 0 673 594 600 112 99 12.5 <br /> TRPH N/A N/A N/A N/A N/A N/A N/A <br /> (oil A grease) <br /> % Rec. ■ (MS - Sample) / amount spiked x 100 <br /> RPD (MS - MSD) / (MS + MSD) x 2 x 100 <br /> 43 <br />