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.FS o <br /> February 24 , 1997 <br /> Sample Log 16440 <br /> QC Report for EPA ,8020& Modified EPA 8015 <br /> Run Log 2157A <br /> From : Southland/Pershing Stockton (Proj .#020700472/6704) <br /> Sample(s) Received 02/20/97 <br /> Matrix Spike <br /> Matrix Spike Duplicate . <br /> Parameter % Recovery Recovery RPD`* <br /> Benzene 102 109 7 <br /> Ethylbenzene 104 - 106 2 <br /> TPH as Gasoline 112 119 6 <br /> * RPD = Relative Percent Difference <br /> Parameter Laboratory Control Sample <br /> Recovery <br /> Benzene 100 <br /> Ethylbenzene 100 <br /> Gasoline )107 <br /> Parameter Method Blank <br /> Benzene <0..005 mg/Kg <br /> Toluene <0 .1005 mg/Kg <br /> Ethylbenzene <0.' 005 mg/Kg <br /> . . Total Xylenes, <0 .005 mg/Kg . <br /> TPH as Gasoline <1. 0 mg/Kg <br /> Joel Kiff <br /> Senior Ch"it <br />