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GAS CHROMATOGRAPHY - QUALITY CONTROL <br /> MSMSD <br /> Test MOD EPA 8015-CDOHS (FUEL HYDROCARBONS/BTXE) ATI I.D. Page <br /> MSMSD # 79635 510257 <br /> Date Extracted: N/A <br /> Client ALISTO ENGINEERING Date Analyzed 31-OCT-95 <br /> Project # 6620560/10-037-05-002 Sample Matrix WATER <br /> REF I.D. : 510257-03 <br /> Project Name: BP SITE#11192/1403 COUNTY CLUB BLVD, STOCKTON, CA <br /> -Parameters Unit"s Sample Canc Spiked '---!k----puP-'- - -Dup RPD -_ <br /> Result Spike Sample Rec Spike Rec <br /> ---------------------------------- <br /> -------------------------- <br /> BENZENE UG/L <0. 50 5.0 5 .2 104 5.2 104 0 <br /> TOLUENE UG/L <0.50 5. 0 5.2 104 5.2 104 0 <br /> t Recovery = (Spike Sample Result - Sample Result) *100/Spike Concentration <br /> RPD (Relative Difference) = (Spiked Sample Result - Duplicate Spike Result) *100/Average Result <br />