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' Acculabs Inc. February 22 , 1999 <br /> Sample Log 19646 <br /> QC Report for EPA 602 & Modified EPA 8015 <br />' Run Log : 4181P <br /> From : Southland 20632 (Prod . # 102483 . 65070000) <br /> Sample(s) Received : 02/18/99 <br />' Matrix Spike <br /> Matrix Spike Duplicate <br />' Parameter Recovery % Recovery RPD <br /> Benzene lel 104 3 <br /> Ethylbenzene 102 104 2 <br /> TPH as Gasoline 132 134 2 <br />' * RPD = Relative Percent Difference <br /> Parameter Laboratory Control Sample <br />' % Recovery <br /> Benzene 101 <br /> Ethylbenzene 102 <br /> Gasoline 132 <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 /> 1 <br /> TomKuoke <br /> Lab Director <br /> 1 <br />