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November 29, 1994 <br /> Sample Log 10789 <br /> QC Report for EPA 602 & Modified EPA 8015 <br /> From : Project # 2556.02 (Thornton) <br /> Sample(s) Received : 11/18/94 <br /> Matrix Spike <br /> Matrix Spike Duplicate <br /> Parameter Recovery $ Recovery RPD <br /> Benzene 98 97 1. <br /> Ethylbenzene 94 89 5 <br /> TPH as Gasoline 99 98 1 <br /> * RPD = Relative Percent Difference <br /> Parameter Method Blank <br /> Benzene <0. 30 ug/L <br /> Toluene <0. 30 ug/L <br /> Ethylbenzene <0. 30 ug/L <br /> Total Xylenes <0. 50 uq/L <br /> TPH as Gasoline <50 ug/L <br /> i <br /> Senior Cber18! <br />