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A <br /> AccuLA69, INN. <br /> February 8 , 2002 <br /> Sample Log 23418 <br /> QC Report for EPA 8020 & Modified EPA 8015 <br /> Run Log : 2214A <br /> From : Colberg Boat Works (Prof . # 5143) <br /> Sample(s) Received : 01/29/02 <br /> Matrix Spike <br /> Matrix Spike Duplicate <br /> Parameter Recovery o Recovery RPD <br /> Benzene 87 81 y <br /> Ethylbenzene 104 100 4 <br /> TPH as Gasoline 106 102 4 <br /> * RPD = Relative Percent Difference <br /> Parameter Laboratory Control Sample <br /> Recovery <br /> Benzene 82 <br /> Ethylbenzene 99 <br /> Gasoline 109 9 <br /> a <br /> Parameter Method Blank <br /> Benzene <0 .005 mg/Kg _L - - <br /> Toluene <0 .005 mg/Kg <br /> Ethylbenzene <0.005 mg/Kg <br /> Total Xylenes <0 .005 mg/Kg <br /> TPH as Gasoline <1 .0 mg/Kg _ <br /> t <br /> Tom Kwoka _ <br /> ` Lab Dire or <br />