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a o oe 0 a <br /> July 23 , 1998 <br /> Sample Log 18763 <br /> QC Report for EPA 8020 & Modified EPA 8015 <br /> Run Log : 2172V <br /> From : Main St Ph II (Proj. # 05-001500) <br /> Sample(s) Received : 07/20/98 <br /> Matrix Spike <br /> Matrix Spike Duplicate <br /> Parameter % Recovery % Recovery RPD <br /> Benzene 106 104 2 <br /> Ethylbenzene 104 103 1 <br /> TPH as Gasoline 102 103 1 <br /> * RPD = Relative Percent Difference <br /> Parameter Laboratory Control Sample <br /> % Recovery <br /> Benzene 102 j <br /> Ethylbenzene 101 <br /> Gasoline 101 j <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 j <br /> I <br /> I <br /> t <br /> Sievert Podolsky ` <br /> senior Chemist <br /> II <br /> 4 <br /> I <br /> I <br /> 1046 Olive Drive, Suite 2 Davis, CA 95616 (530) 757-0920 Fax (530) 753-6091 I <br />