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cbCurtis &Tompkins Ltd <br /> LABORATORY NUMBER: 1021.89 DATE RECEIVED: 11 /06 /90 <br /> CLIENT: ENVIRONMENTAL SCIENCE & ENGINEERING DATE ANALYZED: 11 / 07/90 <br /> PROJECT #: 6 - 90 -5030 DATE REPORTED: 11 /09/90 <br /> PROJECT: AT & T <br /> Benzene , Toluene , Ethyl Benzene , Xylenes by EPA 8020 <br /> Extraction by EPA 5030 Purge and Trap <br />' LAB ID CLIENT ID BENZENE TOLUENE TOTAL ETHYL REPORTING <br /> XYLENES BENZENE LIMIT * <br /> - - - - - - - - - - - - - - - - - - - - - - - - <br /> ( u- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - <br /> 102189 - 1 MW- 1 - 1 ND 1 . 2 ND ND 0 . 5 <br /> t102189 - 2 W- 1 - 2 ND ND ND ND 0 . 5 <br /> 002189- 4 MW- 2- 1 ND 1 . 0 0 . 8 ND 0 . 5 <br /> 102189 -5 MVV- 2 - 2 ND 0 . 5 ND ND 0 . 5 <br /> 102189- 7 MW-3 - 1 ND ND ND ND 0 . 5 <br /> 102189- 10 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, 90 <1 <br /> -------------- <br />' RECOVERY, % 89 <br /> 1 <br /> 1 <br />