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110 2nd Avenue South, #D7,Pacheco, CA 94553 <br />' L—mcCAMPBELL ANALYTICAL INC7 Tele 510-798-1620 Fax 510-798-1622 <br /> QC REPORT FOR HYDROCARBON ANALYSES <br />' Date 07/25/97 Matrix Water <br />' I 1 Concentration (mg/L) % Recovery <br /> Analyte Sample: Amount RPD <br /> 1 ## (78890) MS MSD Spiked 1 MS MSD <br /> 1 I I I I I <br /> 1 TPH (gas) 0 0 102 3 98 S 1 100 0 1 102 3 98 5 3 7 1 <br /> 1 Benzene 0 0 9 8 9 4 1 10 0 1 98 0 94 0 4 2 1 <br />' 1 Toluene 0 0 10 4 10 2 1 10 0 1 104 0 102 0 1 9 1 <br /> 1 Ethyl Benzene 0 0 10 4 10 3 1 10 0 1 104 0 103 0 1 0 1 <br /> 1 Xylenes 0 0 31 1 31 1 1 30 0 1 103 7 103 7 0 0 1 <br /> 1TPH (diesel) 1 0 129 129 1 150 86 86 0 2 <br /> 1 <br /> f TRPH 1 0 27 7 29 6 1 29 0 1 96 102 6 6 1 <br /> 1 (oil grease) i 1 1 <br /> 1 1 1 1 <br /> Rec = (MS - Sample) / amount spiked x 100 <br /> RPD (MS - MSD) / (MS + MSD) x 2 x 100 <br /> 1 <br /> 1 <br />