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McCAMPBELL ANALYTICAL INC 110 2nd Avenue South,#137,Pacheco,CA 94553 <br /> ' Tele-510-798-1620 Fax 510-798-1622 <br /> QC REPORT FOR HYDROCARBON ANALYSES <br /> Date: 02/03-02/04/95 Matrix: Water <br /> Concentration (ug/L) Recovery <br /> Analyte Amount RPD <br /> Sample MS MSD Spited MS MSD <br /> ' TPH (gas) 0.0 98.2 99.9 100 <br /> 98.2 99.9 1.8 <br /> Benzene 0 9.3 10 10 93.0 100.0 7.3 <br /> ' Toluene 0 9.4 9 10 94.0 90.0 4.3 <br /> Ethyl Benzene 0 9.3 9 10 93.0 90.0 3.3 <br /> Xylenes 0 28.6 28.6 30 95.3 95.3 0.0 <br /> TPHdiesel <br /> ( ) 0 152 151 1.50 101 101 0.1 <br /> TRPH N/A N/A A N/A N <br /> / / N/A N/A N/A <br /> (oil & grease) <br /> % Rec. = (MS - Sample) / amount spiked x 100 <br /> RPD = (MS - MSD) / (MS + MSD) x 2 x 100 <br /> 1 <br />