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110 2nd Avcnuc South, #D7,Pacheco, CA 94553 <br /> McCAMPBELL ANALYTICAL INC. Tele 510-798-1620 Fax 510-798-1622 <br /> r <br /> QC REPORT FOR HYDROCARBON ANALYSES <br /> Date: OS/21/95 Matrix: Water <br /> Concentration (ug/L) % Recovery <br /> Analyte Amount RPD <br /> Sample MS MSD Spsked HIS MSO <br /> TPH (gas) 0.0 99.4 97.2 100 99.4 97.2 2.3 <br /> Benzene 0 10 10.1 10 100.0 101.0 1.0 <br /> Toluene 0 9.9 9.9 10 99.0 99.0 0.0 <br /> Ethyl Benzene 0 9.7 9.8 10 97.0 95.0 1.0 <br /> Xylenes 0 31.1 31 30 103.7 103.3 0.3 <br /> TPH (diesel) N/A N/A N/A N/A N/A N/A N/A <br /> STRPH N/A N/A N/A N/A N/A N/A N/A <br /> (oil & grease) <br /> X Rec. (MS - Semple) l amount spiked x 100 <br /> RAO = (MS - MSD) / (MS + MSD) x 2 x 100 <br />