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April 8, 1994 <br /> Sample Log 8994 <br /> QC Report for EPA 8020 & 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 /> Benzene 108 107 1 <br />' Ethylbenzene 107 105 2 <br /> TPH as Gasoline 91 87 4 <br /> * RPD = Relative Percent Difference <br /> 1 <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 <0 .50 mg/kg <br /> I <br /> Hurn $ os <br /> Sehlor Chemist <br /> r <br /> Western Environmental Science & Technology 45133 County Road 32B Davis, CA 95616 916753-9500 FAX 916 757-4652 <br />