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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 /> LAS ID CLIENT ID BENZENE TOLUENE ETHYL TOTAL REPORTING SURROGATE <br /> BENZENE XYLENES LIMIT RECOVERIES <br /> (ug/L) (ug/L) (ug/L) (ug/L) (ug/L) TFT BF8 <br />' 111480-1 MW-1 NO NO ND ND 0.5 89 % 87 % <br /> 111480-2 DUP NO ND ND NO 0.5 95 % 96 % <br />' 111480-3 MW-4 ND NO NO ND 0.5 89 X 92 % <br /> 111480-4 TRIP ND ND NO ND 0.5 91 X 93 % <br />' METHOD BLANK NO NO NO ND 0.5 92 X 92 X <br /> 1 <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 /> ---------------------- <br /> -------------------- <br /> RPD, <br /> RECOVERY, •'s 97 <br /> _______----_------ <br /> 1 <br />