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November <br /> Sample Log 23138 <br /> ' QC Report for EPA 8020 & Modified EPA 8015 <br /> Run Log : 2211E <br /> From : STHL-Country Club #14117 (Proj . # 779966.6304000) <br /> Sample(s) Received : 11/07/01 <br /> Matrix Spike <br /> Matrix Spike Duplicate <br /> Parameter Recovery % Recovery RPD <br /> ' Benzene 103 99 4 <br /> Ethylbenzene 104 102 2 <br /> ' TPH as Gasoline 163 165 2 <br /> * RPD = Relative Percent Difference <br /> Parameter Laboratory Control Sample <br /> % Recovery <br /> ' Benzene 93 <br /> Ethylbenzene 100 <br /> Gasoline 106 <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 /> r <br /> Tom KwOkA <br /> Lab Di C r <br />