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O December 31 , 1996 <br /> Sample Log 16154 <br /> QC Report for EPA 602 & Modified EPA 8015 <br /> Run Log : 61801 <br /> From : CTI--Stockton (Pro3 . # 125997) <br /> Sample(s) Received : 12/17/96 <br /> Matrix Spike <br /> Matrix Spike Duplicate <br /> Parameter Recovery Recovery RPD <br /> Benzene 104 96 8 <br /> Ethylbenzene 102 97 5 <br /> TPH as Gasoline 110 107 3 <br /> * RPD = Relative Percent Difference <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 /> 1 w <br /> 1 <br /> so irr <br /> s or chamia <br /> I <br />