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JILL-25-97 FR1 01 :00 Phi WEST LAB FAX N0. 916-757-4610 P, 11/12 <br /> July 21, 1997 <br /> Sample Log 17036 <br /> QC Report for EPA 602 & Modified EPA 8015 <br /> Run Log : 4164B <br /> From : Crystal Stockton (Prof . # 1628. 08) <br /> Sample(s) Received : 07/16/97 <br /> Matrix Spike <br /> Matrix Spike Duplicate <br /> Parameter Recovery Recovery RPD <br /> Benzene 104 99 5 <br /> Ethylbenzene 105 100 5 <br /> TPH as Gasoline 104 100 4 <br /> RPD = Relative Percent Difference <br /> Parameter Laboratory Control Sample <br /> Recovery <br /> • Benzene 103 _ <br /> Ethylbenzene 103 <br /> Gasoline 105 <br /> Parameter Method Blank <br /> Benzene <0 . 50 ug/T- <br /> Toluene <0 .50 ug/L <br /> Ethylbenzene <0. 50 ug/L <br /> - Total Xylenes <0 . 50 ug/L <br /> TPH as Gasoline <50 ug/L <br /> r ' <br /> a r <br /> r } <br /> esw;st �Y <br /> s�nlot Ch�rir� <br />