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September 7, 1994 <br /> Sample Log 10178 <br /> QC Report for EPA 502 & Modified EPA 8015 <br /> From : Pro]ect # 1628.02 (Crystal Creamery) <br /> Sample(s) Received : 08/30/94 <br /> Matrix Spike <br /> Matrix Spike Duplicate <br /> Parameter % Recovery % Recovery RPD <br /> -- Benzene 107 102 5 <br /> Ethylbenzene 105 99 6 <br /> TPH as Gasoline 111 122 9 <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 ug/L <br /> TPH as Gasoline <50 ug/L <br /> Hits serkhosh <br /> senior Chemist <br /> J <br />