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p <br /> STT Submission: 2005-04-0010 <br /> Gas/BTEXIMTBE by 8260B <br /> a <br /> r <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: Conoco Philips Site#11195 Received: 03/29/2005 16:35 <br /> Site: 16500 S. Harland Rd., Lathrop, CA <br /> i� <br /> Batch QC Report <br /> Prep(s): 5030B Test(s):8260B <br /> Matrix Spike ( MS t MSD) Water QC Batch#2005104107-1 B.66 <br /> MS/MSD Lab ID: 2005-04-0012-001 F <br /> MS: 2005/04107-18.66-057 Extracted:04/07/2005 Analyzed: 041071200511:57 <br /> Dilution: 1.00 <br /> MSD: 2005104/07-1 B.66-022 Extracted:04/07/2005 Analyzed: 04/07/2005 12:22 <br /> Dilution: 1.00 <br /> Compound Conc. ug/L Spk.Level Recove % Limits% Flags <br /> MS MSD Sample uglL MS MSD I RPD Rec. RPD MS MSD <br /> Methyl Cert-butyl ether 23.6 27.1 ND 25 94,4 108.4 13.8 65-165 20 <br /> Benzene 32.4 33.8 9.74 25 90.6 96.2 6.0 69-129 20 <br /> Toluene 40.4 43.0 15.4 25 100.0 110.4 9.9 70-130 20 <br /> Surrogate(s) <br /> 1,2-Dichloroethane-d4 483 458 500 96.6 91.6 73-130 <br /> Toluene-d8 1.507 527 500 101.4 105.4 1 81-114 <br /> i <br /> a <br /> r <br /> r <br /> ki <br /> t; <br /> �i <br /> ij <br /> Severn Trent Laboratories, Inc. 0411312005 15:52 <br /> STL San Francisco,1220 Quarry Lane,Pleasanton,CA 94566 <br /> Page 8 of 10 <br /> A part of Severn Trent Plc Tel 925 484 1919 Fax 925 484 1096 www.stl-inr-.com•CA DHS ELAP#2496 <br /> i <br /> r1 <br />