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AnalyficalTechnologies,lnc <br /> GAS CHROMATOGRAPHY - QUALITY CONTROL <br /> MSMSD <br /> Page 10 <br /> Test MOD EPA 8015-CDOHS (FUEL HYDROCARBONS/BTXE) ATI I D 503306 <br /> MSMSD # 74389 Date Extracted N/A <br /> Client ALISTO ENGINEERING Date Analyzed 29-MAR-95 <br /> Sample Matrix WATER <br /> Project # G096404/10-085-05-001 REF I D 503306-02 <br /> Project Name BP SITE #11194/2375 TRAY BLVD , TRAY CA <br /> ------------------------------------------------------------------------------------------------ <br /> Parameters Units Sample Conc Spiked $ Dup Dup RPD <br /> Result Spike Sample Rec Spike Rec <br /> ------------------------------------------------------------------------------------------------ <br /> BENZENE UG/L <0 50 5 0 4 7 94 4 4 88 7 <br /> TOLUENE UG/L <0 50 5 0 4 8 96 4 5 90 6 <br /> W Recovery = (Spike Sample Result -- Sample Result) *100/Spike Concentration <br /> RPD (Relative % Difference) = (Spiked Sample Result - Duplicate Spike Result) *100/Average Result <br />