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I <br />' April 8, 1994 <br /> Sample Log 8994 <br /> QC Report for EPA 602 & Modified EPA 8015 <br />' From : Stewart's Beacon <br /> Sample(s) Received : 03/28/94 <br />' Matrix Spike <br /> Matrix Spike Duplicate <br /> Parameter % Recovery Recovery RPD <br /> I <br /> Benzene 107 112 5 <br /> Ethylbenzene 103 106 2 <br /> TPH as Gasoline 111 107 4 <br /> * RPD = Relative Percent Difference <br /> EParameter Method Blank <br /> Benzene <0. 30 ug/L <br /> Toluene <0 . 30 ug/L <br /> Ethylbenzene <0. 30 ug/L <br /> ETotal Xylenes <0 . 50 ug/L <br /> TPH as Gasoline <50 ug/L <br /> E <br /> E <br /> E <br /> E <br /> I <br /> E <br /> NStzA Se ostf <br /> Senior Chemist <br /> E <br /> Western Environmental Science & Technology 45133 County Road 32B • Davis, CA 95616 916 753 9500 FAX 916 757 4652 <br />