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r, <br /> McCAMPBELL ANALYTICAL INC, 110 Ind Avenue South,#D7,Pacheco,CA 94553 <br /> Tele. 925-798-1620 Fax;925-798-1622 <br /> a <br /> QC REPORT FOR HYDROCARBON ANALYSES <br /> Date 07/27/99 Matrix WATER <br /> Concentration (ug/L) Recovery <br /> Analyte jSample Amount RPD <br /> (#)15450) MS MSD I Spiked MS MSD <br /> t <br /> TPH (gas) J 0.0 113 8 109 8 100 0 113 8 109 8 3 6 <br /> Benzene 0 0 9 3 9 7 10 0 93 0 97 0 4 2 <br /> Toluene 0 0 9 8 9 9 10 0 98 0 99 0 1 0 <br /> Ethyl Benzene 0 0 10 1 10 3 I 10 0 101 0 103 0 2 0 <br /> Xylenes 0.0 30 9 31 3 30 0 103 0 104 3 1 3 <br /> ITPH(diesel) 0 0 8306 7809 7500 1 111 104 6 2 1 <br /> TRPH 0 26600 25800 23700 113 109 3 8 <br /> (oil & grease) I 1 <br /> Rec - (MS - Sample) / amount spiked x 100 <br /> RPD (MS - MSD) / (MS + MSD) x 2 X 100 <br />