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AP1R-10-97 THU 09,08 AM WEST LAB FAX N0, 916-757-4610 P- 11/12 <br /> April 3, 1947 <br /> Sample Log 16634 <br /> QC Report for EPA 602 & Modified EPA 8015 <br /> Run Log : 6184B <br /> From : Crystal -- Stockton (Proj . # 1628 . 08) <br /> Sample(s) Received : 03/24/97 <br /> Matrix Spike <br /> Matrix Spike Duplicate <br /> Parameter Recovery p Recovery RPD <br /> Benzene 86 79 s <br /> Ethylbenzene 90 83 8 <br /> TPH as Gasoline 111 107 4 <br /> * RPD = Relative Percent Difference <br /> Parameter Laboratory control Sample <br /> Recovery <br /> • Benzene 101 <br /> Ethylbenzene 107 <br /> Gasoline 125 <br /> Parameter Method Blank <br /> $enzene <0. 50 ug/L <br /> Toluene <0 .50 ug/L <br /> Ethylbenzene <0. 50 ug/L <br /> Total Xylenes 40 . 50 ug/L <br /> TPH as Gasoline X50 ug/L <br /> JOGI• 50"X Kir <br /> �.►+xor Cheater <br />