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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: 08/01/95-08/02/95 Matrix: Water <br /> tConcentration (ug/L) % Recovery I <br /> Analyte Amount RPD <br /> Sample MS MSD Spiked MS MSD <br /> TPH (gas) 0.0 92.0 91.5 100 92 91 0.5 <br /> Benzene 0 9.1 9.3 10 91.0 93.0 2.2 <br /> Toluene 0 9.6 9.8 10 96.0 98.0 2.1 <br /> Ethyl Benzene 0 9.9 10.1 10 99.0 101.0 2.0 <br /> Xylenes 0 30.7 31.3 30 102.3 104 3 1.9 <br /> TPH (diesel) N/A N/A N/A N/A N/A N/A N/A <br /> TRPH N/A N/A N/A N/A N/A N/A N/A <br /> (oil & grease) <br /> ' % Rec = (MS - Sampte) / amount spiked x 100 <br /> RPD = (MS - MSD) / (MS + MSD) x 2 x 100 <br /> i <br />