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STLSubmission: 2005-11-0032 <br /> =-� Gas/BTEXIMTBE by 82608 <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: 77CP.60004.04.0195 Received: 11/01/2005 12:30 <br /> Conoco Philips Site#11195 <br /> Site: 16500 Louis Ave., Lathrop, CA <br /> Batch QC Report <br /> Prep(s): 50306 Test(s): 8260B <br /> Laboratory Control Spike Water QC Batch#2005111105-1 C.66 <br /> LCS 2005111105-1 C.66-025 Extracted: 11/05/2005 Analyzed: 11/05/2005 14:25 <br /> LCSD <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) 24.8 25 99.2 65-165 20 <br /> Benzene 26.7 25 106.8 69-129 20 <br /> Toluene 25.7 25 102.8 70-130 20 <br /> Surrogates(s) <br /> 1,2-Dichloroethane-d4 512 500 102.4 73-130 <br /> Toluene-d8 557 500 111.4 81-114 <br /> Severn Trent Laboratories, Inc. 11/0912005 12:00 <br /> STL San Francisco*1220 Quarry Lane, Pleasanton,CA 94566 <br /> A pert of sevem Twnl Plc Tel 925 484 1919 Fax 925 484 1096*www.sti-inc.com*CA DHS ELAP#2496 Page 5 of 6 <br />