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cbCurtis &Tompkins Ltd <br /> LABORATORY NUMBER: 102950 DATE RECEIVED: 02/ 07/91 <br /> CLIENT: ENVIRONMENTAL SCIENCE & ENGINEERING DATE ANALYZED: 02/07/91 <br /> JOB NUMBER: 6 - 90 - 5030 DATE REPORTED: 02/ 14/91 <br />' JOB LOCATION: AT&T LODI <br />' Benzene , Toluene , Ethyl 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 />' 102950 - 1 -�= � - - - - - - - - - - - - - -ND- - - - - - - - - -0 . 5 - - - - -�- - - - - - - -ND- - - - - - - - - - - - - - <br /> 0 . 5 <br />' 102950 - 2 W- 3 ND 0 . 8 ND ND 0 . 5 <br /> 102950 - 3 W- 2 ND ND ND ND 0 . 5 <br /> ok02950 -4 DUP ND ND ND ND 0 . 5 <br />' 102950 - 6 T. B. ND ND ND ND 0 . 5 <br />' ND W Not detected at or above reporting limit . <br /> * Reporting Limit applies to all analytes . <br />' QA/QC SUMMARY <br />' RPD, % 2 <br /> RECOVERY, % 92 <br /> 1 <br /> 1 <br /> 1 <br />