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McCAMPBELL ANALYTICAL INC 110 2nd Avenue South, #D7,Pacheco,CA 94553 <br />' <br /> Tele 510-798-1620 Fac 510-798-1622 <br />' QC REPORT FOR HYDROCARBON ANALYSES <br />' Date: 02/18-02/19/95 Matrix: Water <br />' Concentration (ug/L) % Recovery <br /> Analyte Amount RPD <br />' Sample MS MSD Spiked MS MSO <br /> TPH (gas) 0.0 104.6 93.5 100 104.6 93.5 11..2 <br />' Benzene 0 9.4 9.3 10 94.0 93.0 1.1 <br /> Toluene 0 9.7 9.5 10 97.0 95.0 2.1 <br /> Ethyl Benzene 0 9.9 9.7 10 99.0 97.0 2.0 <br />' Xylenes 0 30.5 30 30 101.7 100.0 1.7 <br /> TPH (diesel) 0 156 160 150 104 107 2.1 <br /> I <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 />