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October 31, 1996 <br /> Sample Log 15803 <br /> QC Report for EPA 8020 & Modified EPA 8015 <br /> Run Log : 61781 <br /> From : Southland/Tracy (Prof . # 020700231/6504) <br /> Sample(s) Received : 10/23/96 <br /> Matrix Spike <br /> Matrix Spike Duplicate <br /> Parameter Recovery o Recovery RPD <br /> Benzene 111 106 5 <br /> Ethylbenzene 107 101 6 <br /> TPH as Gasoline 116 120 3 <br /> * RPD = Relative Percent Difference <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 <0. 50 mg/kg <br /> xsr� <br /> nlor meni <br />