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tAccu l a b s Inc. Formerly West Laboratory <br /> Davis/Sacramento 1046 Olive Drive, Suite 2, Davis CA 95616 ■ 530-757-0920 ■ Fax 753-6091 <br /> August 18 , 1998 <br /> Sample Log 18899 <br /> QC Report for EPA 602 & Modified EPA 8015 <br />' Run Log : 4176E <br /> From : T & T Trucking (Pro] . # 6271) <br /> Sample(s) Received : 08/13/98 <br />' Matrix Spike <br /> Matrix Spike Duplicate <br /> Parameter g Recovery Recovery RPD <br /> Spiked sample too contaminated for spike recovery. See LCS data. <br /> * RPD = Relative Percent Difference <br />' Parameter Laboratory Control Sample <br /> Recovery <br /> Benzene 100 <br /> Ethylbenzene 103 <br /> Gasoline 114 <br /> Parameter Method Blank <br />' Benzene <0. 50 ug/L <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 />' senior t chewitzky <br />' Phoenix ■ Tucson a North Phoenix Davis/Sacramento ■ Durango • Golden ■ Sparks/Reno <br />