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' cbCurtis &Tompkins Ltd <br /> LABORATORY NUMBER 104979 DATE RECEIVED 08 / 27 / 91 <br /> CLIENT - ERM-WEST DATE ANALYZED. 08 / 29 / 91 <br /> PROJECT ID- 653 10 DATE REPORTED- 09 / 09/ 91 <br /> LOCATION STOCKTON <br /> Benzene , Toluene , Ethyi Benzene , Xylenes by EPA 8020 <br /> Extraction by EPA 5030 Purge and Trap <br /> LAB ID CLIENT ID BENZENE TOLUENE ETHYL TOTAL REPORTING <br /> BENZENE XYLENES LIMIT * <br /> ( ug /L) ( ug /L) (ug /L) ( ug /L) (ug /L) <br /> - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - <br /> 104979 - 1 W1 - 1 ND ND ND ND 0 5 <br /> 104979 - 3 W2 - 1 ND ND ND ND 0 5 <br /> 104979 - 5 W3 - 1 ND ND ND ND 0 5 <br /> 104979 - 7 FB ND ND ND ND 0 5 <br />• 104979 - 8 TRIP BLANK ND ND ND ND 0 5 <br /> ND = Not detected at or above reporting limit <br /> * Reporting Limit applies to all analytes <br /> QA/QC SUMMARY <br /> RPD ,�% 6 <br /> 97 <br /> RECOVERY, % <br />