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IA <br /> October 18, 1993 <br /> Sample Log 7632 <br /> QC Report for EPA 602 & Modified EPA 8015 <br /> From Western <br /> Lift <br /> Sample(s) Received : 10/10/93 <br /> Matrix Spike <br /> Matrix Spike Duplicate <br /> Parameter Recovery % Recovery RPD <br /> Benzene 94 95 1 <br /> Ethylbenzene 89 86 4 <br /> TPH as Gasoline 89 87 2 <br /> * RPD = Relative Percent Difference <br /> ' Parameter Method Blank <br /> Benzene <0. 30 ug/L <br /> lie Toluene <0. 30 ug/L <br /> Ethylbenzene <0. 30 ug/L <br /> .� Total Xylenes <0.50 ug/L <br /> TPH as Gasoline <50 ug/L <br /> .I' <br /> 1 <br /> i <br /> S 1 Riff <br /> i Che�is <br /> Western Environmental Science & Technology 45133 County Road 328 Davis, CA 95616 916 753-9500 FAX:916 757-4652 <br />