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F7`77PBELL ANALYTICAL INC 110 2nd Avenue South, #D7, Pacheco, CA 94553 <br /> Tele 510-798-1620 Fac 510-798-1622 <br /> QC REPORT FOR HYDROCARBON ANALYSES <br /> Date: 12/08-12/09/94 Matrix: Water <br />' Concentration (ug/L) % Recovery <br /> Analyte Amount RPD <br /> Sample MS MSD Spzked MS MSD <br /> 1 <br /> TPH (gas) 0.0 95.0 94.2 100 95.0 94.2 0.9 <br />' Benzene 0 10.4 10.2 10 104.0 102.0 1.9 <br /> Toluene 0 10 5 10.4 10 105.0 104.0 1.0 <br /> Ethyl Benzene 0 10.2 10 10 102.0 100.0 2.0 <br /> Xylenes 0 30.9 30.7 30 103.0 102.3 0.6 <br /> TPH (diesel) 0 153 151 150 102 101 1.2 <br /> TRPH 0 20000 20300 20000 100 102 1. 5 <br />' (oil & grease) <br /> I <br />' % Rec = (MS Sample) / amount spiked x 100 <br /> RPD = (MS MSD) / (MS + MSD) x 2 x 100 <br />