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1 <br /> cbCurtis &Tompkins Ltd <br /> LABORATORY NUMBER: 110988 DATE SAMPLED: 5/20/93 <br /> CLIENT: ENVIRONMENTAL SCIENCE & ENGINEERING DATE RECEIVED: 5/21/93 <br /> PROJECT ID: 6-92-5009 DATE ANALYZED: 5/27/93 <br /> LOCATION: AT&T - LODI DATE REPORTED: 5/28/93 <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 RECOVERY <br /> (ug/Kg) Cug/K9) (ug/Kg) (ug/K9) (u9/K4) (Bromobenzene) <br /> 110988-007 MN-4 2 351 ND RD ND ND 5 99 X <br />' 110988-008 X41-4 2 401 ND ND ND ND 5 100 X <br /> 110988-012 SB-A B 201 NO ND NO ND 5 100 X <br />' 110988-013 SB-A a 251 HD ND HD ND 5 99 X <br /> 10 METHOD BLANK N/A ND HD NO ND 5 101 X <br /> 1 <br />' BFB = Bromofluorobenzene (Limits: 75-125) <br /> ND = Not detected at or above reporting limit. <br /> Reporting Limit applies to all analytes. <br /> SUMMARY: LABORATORY CHECK S <br /> QA/QC AMPLE <br /> RECOVERY,%_____ 110--=-_---� - <br /> I <br />