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Acculabs Inc. August 27, 1999 <br /> Sample Log 20470 <br /> QC Report for EPA 602 & Modified EPA 8015 <br /> Run Log : 2183M <br /> From : Earth Grains (Prof . # 8053-83) <br /> Sample(s) Received 08/20/99 <br /> ' Matrix Spike <br /> Matrix Spike Duplicate <br /> Parameter % Recovery % Recovery RPD <br /> Spiked sample too contaminated for spike recovery. See LCS data. <br /> * RPD = Relative Percent Difference <br /> Parameter Laboratory Control Sample <br /> o Recovery <br /> Benzene 99 <br /> Ethylbenzene 104 <br /> Gasoline 102 <br /> Parameter Method Blank <br /> Benzene <0 . 50 ug/L <br /> Toluene <0 .50 ug/L <br /> Ethylbenzene <0 . 50 ug/L <br /> Total Xylenes <0.50 ug/L <br /> TPH as Gasoline <50 ug/L <br /> Ton Kw ka <br /> Lab Direct <br />