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'4 <br /> J�Ana#yticalechnologies,lnc. <br /> GAS CHROMATOGRAPHY - QUALITY` CONTROL <br /> BLANK SPIKE <br /> Pag°1 9 <br /> Test MOD EPA 8015-CDOES (FUEL HYDROCARBONS/BTKE) ATI I.D. 503082 <br /> Date Extracted: N/A <br /> Blank Spike #: 55047 <br /> Client ALISTO ENGINEERING Date Analyzed : ER-95 <br /> Project # G317904/10-136-03 Sample Matrix WATER <br /> Project Name BP SITE #11193/STOCTON, CA. <br /> ----�------------------- <br /> -------------- Units Blank Spiked Spike % <br /> Parameters Result Sample Conc. Rec <br /> --------- --------------50 <br /> ------------------ 104 <br /> 5 <br /> UGIL <0.50 . <br /> BENZENE 5.0 104 <br /> TOLUENE UG/L <0.50 5.2 <br /> % Recovery = (Spike Sample Result - Sample Result)*100/Spike Concentration <br /> RPD (Relative % Difference) _ (Spiked Sample -- Blank Result)*100/Average Result <br />