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August 17 , 1995 <br /> o;, Sample Log 12695 <br /> QC Report for EPA 602 & Modified EPA 8015 <br /> From : Granite Construction (Proj . # 2088.05) <br /> Sample(s) Received : 08/11/95 <br /> Matrix Spike <br /> Matrix Spike Duplicate <br /> Parameter Recovery % Recovery RPD <br /> Benzene 103 99 4 <br /> Ethylbenzene 108 101 7 <br /> TPH as Gasoline 104 102 2 <br /> * RPD = Relative Percent Difference <br /> Parameter Method Blank <br /> Benzene <0 . 30 ug/L <br /> Toluene <0 . 30 ug/L <br /> Ethylbenzene <0 . 30 ug/L <br /> Total Xylenes <0.50 ug/L <br /> TPH as Gasoline <50 ug/L <br />. rloKlff". <br /> t <br />