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I <br /> December 10 , 1993 <br /> Sample Log 8048 <br />' QC Report for EPA 602 & Modified EPA 8015 <br /> From : Arco Mini. Mart <br /> Sample(s) Received : 12/06/93 <br /> 1 Matrix Spike <br /> Matrix Spike Duplicate <br />' Parameter % Recovery % Recovery RPD <br />' Benzene 95 96 1 <br /> Ethylbenzene 93 92 1 <br /> TPH as Gasoline 101 104 3 <br />' * RPD = Relative Percent Difference <br /> Parameter Method Blank <br /> j Benzene <0 . 30 ug/L <br /> 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 /> AnJoel Kiff <br /> Senior Chemist <br /> I <br /> Western Environmental Science & Technology 45133 County Road 328 Davis CA 95616 916 753-9500 FAX 916 757-4652 <br />