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i� <br />' Acculabs Inc. June 1 , 1999 <br /> Sample Log 20036 <br /> QC Report for EPA 602 & Modified EPA 8015 <br /> Run Log : 4184S <br /> From : Earthgrains - Stockton (Proj . # 125997) <br /> Sample(s) Received 05/18/99 <br />' Matrix Spike <br /> Matrix Spike Duplicate <br />' Parameter o Recovery Recovery RPD <br /> Benzene 91 92 2 <br /> Ethylbenzene 95 97 2 <br /> TPH as Gasoline 120 126 5 <br /> * RPD = Relative Percent Difference <br /> Parameter Laboratory Control Sample <br /> S Recovery <br /> Benzene 86 <br /> Ethylbenzene 90 <br /> Gasoline 116 <br /> Parameter <br /> 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 /> _1 <br /> rota XWORM <br />' Lob Direc r <br />