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1 <br /> Acculabs Inc. May 14 , 1999 <br /> Sample Log 20009 <br /> QC Report for EPA 8020 & Modified EPA 8015 <br /> ' Run Log : 2179Y <br /> From : Sthl 14117 <br /> Sample(s) Received : 05/13/99 <br /> Matrix Spike <br /> Matrix Spike Duplicate <br /> ' Parameter o Recovery o Recovery RPD <br /> Benzene 107 104 3 <br /> Ethylbenzene 105 104 1 <br /> TPH as Gasoline 115 108 6 <br /> * RPD = Relative: Percent Difference <br /> Parameter Laboratory Control Sample <br /> ' o Recovery <br /> Benzene 104 <br /> Ethylbenzene 105 <br /> Gasoline 107 <br /> ' Parameter Method Blank <br /> ' Benzene <0 . 005 mg/Kg <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 /> 1 <br /> Tom KWO Q <br /> LaD DSr or <br /> 1 <br />