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JAN 25 '94 15 01 CURTIS & TOMPKINS BERKELEY P.2 <br /> Curtis &To <br /> C rrpkrns,ltd <br /> J <br /> t LABORATORY NUMBER: 113756 DATE SAMPLED: 12/22/94 <br /> CLIENT: ENVIRONMENTAL SCIENCE & ENGINEERING DATE RECEIVED: 12/23/94 <br /> PROJECT ID: 693-5186 DATE ANALYZED: 01/05/94 <br />' LOCATION: AT&T LODI DATE REPORTED: 01/07/94 <br /> DATE REVISED: 01/25/94 <br />' Benzene, Toluene, Ethyl Benzene, Xylenes by EPA 8020 <br /> Extraction by EPA 5030 Purge and Trap <br /> LAB 1D CLIENT ID BENZENE TOLUENE ETHYL TOTAL REPORTING SURROGATE <br />' BENZENE XYLENES LIMIT RECOVERIES <br /> (ug/L) Wo/L) (up/L) WO/L) (ug/L) TFT B8 <br />' 113756-001 NNW-1 RD ND ND ND 0.5 87 % 90 X <br /> 113756-002 MW-2 ND ND ND ND 0.5 87 % 40 % <br /> 113756-003 MW-3 ND ND NO ND 0.5 87 % 89 % <br />' 113756-004 MW-4 ND ND ND ND 0.5 88 % 90 % <br /> 113756-005 DUP-4 ND NO ND ND 0.5 86 % 89 % <br /> METHOD BLANK N/A ND N0 NO ND 0.5 as % 40 % <br /> 1 <br /> TFT s Trifluorotoluene (Limits: 58-130) <br />' BB = Bromobenzene (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,$ 4 (Limit: C25 ) <br /> RECOVERY,% 106 (Limits: 75-125) <br /> I . <br />