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r <br /> Acculabs Inc. January 27, 2000 <br /> Sample Log 20899 <br /> QC Report for EPA 602 & Modified EPA 8015 <br /> Run Log : 2186Q <br /> From : (Proj. # 1999120628) <br /> Sample(s) Received : 12/23/99 <br /> Matrix Spike <br /> Matrix Spike Duplicate <br /> Parameter Recovery $ Recovery RPD <br /> Benzene 104 102 M 2 <br /> Ethylbenzene 105 103 2 <br /> TPH as Gasoline 98 96 3 <br /> * RPD = Relative Percent Difference <br /> Parameter Laboratory Control Sample <br /> Recovery <br /> Benzene 105 <br /> Ethylbenzene 108 <br /> Gasoline 104 <br /> i <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 /> r <br /> r <br /> Tl <br /> r TOM PmOkOrN <br /> � <br /> Lab nir. <br /> 1 <br />