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STL <br /> Submission: 2005-02-0823 <br /> 11 <br /> Fuel Oxygenates by 82608 <br /> I�: 5 <br /> San Joaquin Company, Inc. <br /> Attn.: Dai Watkins <br /> 1120 Hollywood Ave, Suite 3 <br /> Oakland, CA 94602-1459 <br /> Phone: (510)336-1772 Fax: (510)336-9119 <br /> Project: 9902.015 Received: 02/28/2005 09:12 <br /> G. Navarra <br /> Site: 7500 W. 11th St., Tracy <br /> Batch QC Report <br /> Prep(s): 5030B Test(s):8260B <br /> Matrix Spike( MS 1 MSD} Water QC Batch#2005103107-01.64 !; <br /> MS/MSD Lab ID: 2005-02-0758-003 <br /> MS: 2005103107-01.64-035 Extracted:03/07/2005 Analyzed: 03/07/2005 09:35 <br /> Dilution: 1,00 <br /> MSD: 2005103107-01.64-057 Extracted:03/07/2005 Analyzed: 03/07/2005 09:57 <br /> Dilution: 1.00."-1---- <br /> Compound <br /> ,00.Compound Conc. ug/L pk.Level cove % Limits% Flags <br /> Ms MSD Sample ug/L MS MSD RPD Rec. RPD MS MSD i} <br /> Methyl tert-butyl ether 29.9 32.8 5.44 25.0 97.8 109.4 11_2 65-165 20 <br /> Benzene 22.0 25.2 1.27 25.0 82.9 95.7 14.3 69-129 20 <br /> Toluene 23.4 26.5 ND 25.0 93.6 106.0 12.4 70-130 20 <br /> Surrogate(s) <br /> 1,2-Dichloroethane-d4 514 476 500 102.8 95.2 73-130 ` <br /> Toluene-d8 478 470 500 95.6 94.0 1 81-114 <br /> I <br /> i <br /> 1 <br /> F <br /> k <br /> 1 <br /> Severn Trent Laboratories, Inc. 03!081200514:«' <br /> STL San Francisco'1220 Quarry Lane,Pleasanton,CA 94566 <br /> A part W Sevem Treni Plc Tel 925 484 1919 Fax 925 484 1096*www.stl-lnc.com'CA DHS ELAP#2496 Page 10 of 10 <br /> 1 <br /> r <br />