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rCb Curtis &Tompkins Ltd <br />' LABORATORY NUMBER 104830 DATE RECEIVED: 08 / 14/91 <br /> CLIENT: ENVIRONMENTAL SCIENCE & ENGINEERING DATE ANALYZED- 08 / 17/ 91 <br /> PROJECT ID: 6 - 90 - 5030 DATE REPORTED 08 / 20/ 91 <br /> LOCATION AT&T LODI <br /> Benzene , Toluene , Ethyl Benzene , Xylencs by EPA 8020 <br /> Extract ion 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 />' 104830 - 1 MW- 1 ND ND ND ND 0 . 5 <br /> 104830 - 2 MW- 2 1 3 0 8 ND ND 0 . 5 <br /> 104830 - 3 MW- 3 ND ND ND ND 0 . 5 <br /> ND = Not detected at or above reporting limit . <br /> * Reporting Limit applies to all analytes <br /> 1 <br /> QA/QC SUMMARY <br /> RPD, %^__._______.____._________—_--____—._____,...—_--_______________________...=1= <br /> RECOVERY, % 97 <br /> I <br />