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T L <br /> Submission#: 2084-01-0606 <br /> Gas/BTEXIMTBE by 8260B <br /> SECOR-Sacramento <br /> Attn.: Amy Draffan <br /> 3017 Kilgore Road, Suite 100 <br /> Rancho Cordova, CA 95670 <br /> Phone: (916) 861-0400 Fax: (916) 861-0430 <br /> Project; 11195 Received: 011221200413:30 <br /> Site: 16500 Louise, Lathrop„ CA <br /> Batch QC Report <br /> Prep(s): 5030B Test(s): 8260B <br /> Laboratory Control Spike Water QC Batch#2004101131-18.65 <br /> LCS 2004101131-1 B.65-058 Extracted: 01/31/2004 Analyzed: 01/31/2004 10:29: <br /> LCSD 2004101131-1 B.65-057 Extracted: 01/31/2004 Analyzed: 01/3112004 09:57 <br /> Compound Conc. ug/L Exp.Conc, Recovery% RPD Ctrl.Limits% Flags <br /> LCS LCSD LCS LCSD % Rec. RPD LCS LCSD <br /> Methyl tert-butyl ether(MTBE) 28.2 23.3 25 112.8 93.2 19.0 65-165 20 <br /> Benzene 25.5 22.8 25 102.0 91.2 11.2 69-129 20 <br /> Toluene 25.0 23.2 25 100.0 92.8 7.5 70-130 20 <br /> Surroga fes(s) <br /> 1,2-Dichloroethane-d4 525 502 500 105.0 100.4 76-114 <br /> Toluene-d8 502 1515 1500 1100.4 1103.0 1 1 88-1101 1 <br /> i <br /> Severn Trent Laboratories, Inc. 02103120041� J <br /> i <br /> STL San Francisco'1220 Quarry Lane, Pleasanton,CA 94566 <br /> R pmt or Sw mT-1 Plc Tel 925 484 1919 Fax 925 484 1096*www.sti-inc.com*CA DHS ELAP#2496 Page 7 of S <br /> i <br /> f <br />