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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: 03/25/94 Matrix: Water <br /> Concentration (ug/L) Recovery <br /> Analyte Amount RPD <br /> Sample MS MSD Spiked MS MSD <br /> TPH (gas) 0.0 202.2 104.5 100 102.2 104.5 2.3 <br /> Benzene 0 11 10.7 10 110.0 107.0 2.8 <br /> Toluene 0 11.3 10.9 10 113.0 109.0 3.6 <br /> Ethyl Benzene 0 10.8 10.4 10 108.0 104.0 3.8 <br /> Xylenes 0 33.5 32.9 30 111.7 109.7 1.8 <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 - Sad e) / amount spiked x 100 <br /> RPD = (MS - MSA) / (MS + MSD) X 2 x 100 <br />