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cbCurtis &Tompkins Ltd <br /> LABORATORY NUMBER: 111480 DATE SAMPLED: 07/02/93 <br /> CLIENT: Environmental Science & Engineering DATE RECEIVED: 07/06/93 <br /> PROJECT ID: 6-92-5009 DATE ANALYZED: 07/07/93 <br /> LOCATION: AT&T - LODI DATE REPORTED: 07/16/93 <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 SURROGATE <br /> BENZENE XYLENES LIMIT RECOVERIES <br /> OWL) (ug/L) (ug/L) (ug/L) (ug/L) TFT BFB <br /> 111480-1 MW-1 ND ND ND ND 0 5 89 % 87 % <br /> 111480-2 DUP ND ND ND ND 0 5 95 % 96 % <br /> 111480-3 MW-4 ND ND NO ND 0 5 89 % 92 % <br /> 111480-4 TRIP ND ND ND NO 0 5 91 % 93 % <br /> METHOD BLANK ND ND ND ND 0 5 92 % 92 % <br /> TFT = Trifluorotoluene (Limits: 58-130) <br /> BFB = Bromofluorobenzene (Limits: 62-131) <br /> ND = Not detected at or above reporting limit. <br /> Reporting Limit applies to all analytes. <br /> QA/QC SUMMARY: BS/BSD <br /> RPD, 3=-==--____= <br /> RECOVERY, 's 97 <br /> I <br /> I <br /> I <br />