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1 <br /> January 11 , 1995 <br /> Sample Log 11071 <br /> t <br /> QC Report for EPA 8020 & Modified EPA 8015 <br /> 1 From : Chapin Bros. <br /> Sample(s) Received : 01/06/95 <br /> 1 Matrix Spike <br /> Matrix Spike Duplicate <br /> Parameter % Recovery % Recovery RPD <br /> Benzene 100 99 1 <br /> ' Ethylbenzene 92 93 1 <br /> TPH as Gasoline 99 113 13 <br /> * RPD = Relative Percent Difference <br />� 1 <br /> 1 Parameter Method Blank <br /> Benzene <0. 005 mg/kg <br /> Toluene <0. o05 mg/kg <br /> Ethylbenzene <0. 005 mg/kg <br /> Total Xylenes <0. 005 mg/kg <br /> ' TPH as Gasoline <0. 50 mg/kg <br /> 1 <br /> Hits sarkhosh <br /> 1 senior Chemist <br /> 1 <br />