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AAna lyticalTechnologies,lnc <br /> GAS CHROMATOGRAPHY - QUALITY CONTROL <br /> BLANK SPIIKE <br /> Page 6 <br /> Test MOD EPA 8015-CDOES (FUEL HYDROCARBONS) ATI I.D. 502257 <br /> Blank Spike #: 54720 Date Extracted: 24-FEB-95 <br /> Client : ALISTO ENGINEERING Date Analyzed : 24-FEB-•95 <br /> Project # G029043/10-085-05-001 Sample Matrix : WATER <br /> Project Name BP SITE #11194/2375 TRACY BLVD TRACY, CA. <br /> --------------------------..------------------------------------------------------------------------- <br /> Parameters Units Blank Spiked Spike % <br /> Result Sample Conc. Rec <br /> --------------------------------------------__----------------------------------------------------- <br /> FUEL HYDROCARBONS MG/L a0.50 11 10 110 <br /> % Recovery = (Spike Sample Result - Sample Result)*100/Spike Concentration <br /> RPD (Relative % Difference) _ (Spiked Sample - Blank Result)*100/Average Result <br />