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Report Number : 71833 <br /> QC Report : Matrix Spike/ Matrix Spike Duplicate Date : 02/09/2010 <br /> Project Name : 1 Q10 QMS - STTC <br /> Project Number : 185702030.200.005 <br /> Duplicate Spiked <br /> Duplicate Spiked Spiked Sample Relative <br /> Spike Spiked Spiked Sample Sample Relative Percent Percent <br /> Spiked Sample Spike Dup. Sample Sample Analysis Date Percent Percent Percent Recov. Diff. <br /> Parameter Sample Value Level Level Value Value Units Method Analyzed Recov. Recov. Diff. Limit Limit <br /> Chromium <br /> 71830-01 < 0.0050 0.400 0.400 0.441 0.438 mg/L EPA 6010B 2/4/10 110 109 0.751 75-125 20 <br /> Vanadium <br /> 71830-01 < 0.0050 0.400 0.400 0.420 0.414 mg/L EPA 6010B 2/4/10 104 103 1.46 75-125 20 <br /> TPH as Diesel <br /> BLANK <50 1000 1000 1080 1070 ug/L M EPA 8015 2/4/10 108 107 0.890 70-130 25 <br /> Benzene <br /> 71836-05 <0.50 40.6 40.6 40.5 39.7 ug/L EPA 8260B 2/3/10 99.8 97.8 2.01 80-120 25 <br /> Diisopropyl ether <br /> 71836-05 <0.50 39.9 39.9 40.7 41.1 ug/L EPA 8260B 2/3/10 102 103 0.980 80-120 25 <br /> Ethanol <br /> 71836-05 <5.0 100 100 89.1 107 ug/L EPA 8260B 2/3/10 88.8 107 18.6 55.1-159 25 <br /> Ethyl-tert-butyl ether <br /> 71836-05 <0.50 40.3 40.3 41.4 42.2 ug/L EPA 8260B 2/3/10 103 105 1.88 76.5-120 25 <br /> Ethylbenzene <br /> 71836-05 <0.50 40.3 40.3 42.2 42.9 ug/L EPA 8260B 2/3/10 105 106 1.63 80-120 25 <br /> Methanol <br /> 71836-05 <50 1000 1000 916 930 ug/L EPA 8260B 2/3/10 91.4 92.8 1.47 53.2-147 25 <br /> v <br /> m <br /> v, <br /> 0 <br /> KIFF ANALYTICAL, LLC <br /> 2795 2nd Street, Suite 300 Davis, CA 95618 530-297-4800 <br />