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A A na Iyficc1Tech nolog ies,1 nc <br /> • GAS CHROMATOGRAPHY - QUALITY CONTROL <br /> BLANK SPIKE <br /> TaitPage 1: <br /> MOD EPA 8015-CDOHS (FUEL HYDROCARBONS/BT%E) ATI I.D. 502257 <br /> Blank Spike #• 54723 Date Extracted: N/A <br /> Client : ALISTO ENGINEERING Date Analyzed : 27-FEB-95 <br /> Project # 6029043/10-085-05-001 Sample Matrix : WATER <br /> Project Name BP SITE #11194/2375 TRACY BLVD. TRACY, CA. <br /> -----------------------..,_------------ <br /> ----------------------------------- <br /> Parameters Units Blank Spiked Spike % <br /> --------- Result Sample Conc. Rec <br /> --------------------------------- --- <br /> BENZENE UG/L <0.50 4.8 5.0 96 <br /> TOLUENE UG/L <0.50 4.9 5 .0 98 <br /> % Recovery = (Spike Sample Result - Sample Result)*100/Spike Concentration <br /> RPD (Relative % Difference) _ (Spiked Sample - Blank Result)*100/Average Result <br />