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IS <br /> May 6, 1998 <br /> Sample Log 18438 <br /> QC Report for EPA 8020 & Modified EPA 8015 <br /> Run Log : 217OX <br /> From : Southland #20304 Tracy <br /> Sample(s) Received : 05/01/98 <br /> Matrix Spike <br /> Matrix Spike Duplicate <br /> Parameter Recovery $ Recovery RPD <br /> Benzene 108 105 3 <br /> Ethylbenzene 108 104 4 <br /> TPH as Gasoline 112 111 1 <br /> * RPD = Relative Percent Difference <br /> Parameter Laboratory Control Sample <br /> g Recovery <br /> Benzene 102 <br /> Ethylbenzene 102 <br /> Gasoline 105 <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 <1. 0 mg/kg <br /> U' <br /> Stewart 1Poaolaxy <br /> Senior cheaiat <br /> i� <br /> 1046 Olive Drive, Suite 2 Davis, CA 95616 • (530) 757-0920 Fax(530) 753-6091 <br />