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ACCULABS, INC <br /> 1 May 1 , 2001 <br /> Sample Log 22500 <br /> ' QC Report for EPA 8020 & Modified EPA 8015 <br /> Run Log : 4197N <br /> From : Earthgrains Depot (Prod . # 23-484517-A00) <br /> ' Sample(s) Received 04/24/01 <br /> Matrix Spike <br /> ' Matrix Spike Duplicate <br /> Parameter o Recovery o Recovery RPD <br /> Benzene 98 98 1 <br /> Ethylbenzene 99 104 5 <br /> TPH as Gasoline 111 117 5 <br /> * RPD = Relative Percent Difference <br /> 1 Parameter Laboratory Control Sample <br /> Recovery <br /> Benzene 100 <br /> Ethylbenzene 103 <br /> 1 Gasoline 113 <br /> Parameter Method Blank <br /> Benzene <0.50 ug/L <br /> <0. 50 u <br /> Toluene 9L <br /> Ethylbenzene <0.50 ug/L <br /> Total Xylenes <0.50 ug/L <br /> 1 TPH as Gasoline <50 ug/L <br /> 1 Tom Kwoka <br /> Lab DIIC t <br /> 1 <br />